• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention essentially relates to a rotor (100) having an axis of rotation (X) for an electric machine comprising: - a central core (101), - arms (102) extending radially with respect to the core (101) , these arms (102) each having two flanges (105) extending on either side of the arms (102), - permanent magnets (114) positioned inside housings (111) each delimited by two faces side facing each other of the two adjacent arms (102), an outer face of the web (101) extending between the two adjacent arms, and the flanges (105) of the rotor arms (100) . Blades (119) made of softer material than the permanent magnets (114) positioned between the flanges (105) of the arms (102) and the face of the permanent magnet (114) facing away from the axis ( X) of the rotor (100) for maintaining the magnets in centrifugation and in that the permanent magnets have in the axial direction a height and in the orthoradial direction a width, said blade having in the axial direction a height close to the height of the magnets permanent, the ratio between the width of the blade and that of the magnet being 0.9 to 1.1 without being equal to 1.
    公开号:FR3013529A1
    申请号:FR1361402
    申请日:2013-11-20
    公开日:2015-05-22
    发明作者:Lilya Bouarroudj；Mamy Rakotovao；Jean-Claude Matt
    申请人:Valeo Equipements Electriques Moteur SAS；
    IPC主号:
    专利说明:

    [0001] TECHNICAL FIELD OF THE INVENTION [1] The invention relates to an electric machine rotor and the spring for the associated permanent magnet radial retention. [2] The invention finds a particularly advantageous, but not exclusive, application with the compressors used for the refrigerant compression of a motor vehicle air conditioner. STATE OF THE ART [03] Electrical machines are known having a stator and a rotor integral with a shaft ensuring the movement of a scroll compressor, also known as a "scroll compressor". Such a system comprises two spirals interposed as pallets for pumping and compressing the refrigerant. In general, one of the turns is fixed, while the other moves eccentrically without turning, so as to pump and then imprison and finally compress fluid pockets between the turns. Such a system is for example described in document EP 1 865 200. [04] The rotor made of laminated sheet has a central core, and arms extending radially relative to the core. These arms each comprise two flanges extending circumferentially on either side of the arms. Permanent magnets are positioned inside housings delimited each by two faces facing each other of two adjacent arms, an outer face of the rotor core, and the edges of the arms. [05] When the tolerances used in the realization of the rotor are large in order to reduce the manufacturing costs, it is possible that the magnets are badly plated inside the housings of the rotor. This can cause different problems: a. Mechanical unbalance if the magnets are not all at the same radial position b. Higher stresses on the parts of the magnet in contact with the rotor sheet, in particular under the effect of high speed centrifugal forces. Under the effect of these forces and following an irregularity of the contact surface a very high level of stress can be generated in the magnet leading to its breaking or peeling. vs. Small magnet fragments can be ejected from the rotor and damage the stator due to centrifugal forces. [6] Moreover, one of the problems of these machines is the maintenance of the magnets in centrifugation. OBJECT OF THE INVENTION [7] The object of the invention is to overcome these disadvantages. [08] For this purpose, blades are used positioned between the flanges of the rotor arms and the face of the permanent magnet facing away from the axis of the rotor. These blades close the rotor above the magnet and avoid the potential ejection of fragments of magnets. Moreover, the nature of the materials chosen for these blades makes it possible, by crushing the blades under the effect of the centrifugal forces, to better distribute the magnet retention forces in centrifugation on the surface of the magnet in contact with the blade. This last effect makes it possible to strongly reduce the local mechanical stresses in the magnet thus making it possible to avoid breaking or scaling at high speed. [09] The invention thus relates to a rotor for an electric machine, said rotor being provided with an axis of rotation and comprising: - a central core, - arms extending radially with respect to the core, these arms each comprising two flanges extending on either side of the arms, - permanent magnets positioned inside housings delimited each by two lateral faces facing one another of the two adjacent arms, an outer face of the soul extending between the two adjacent arms, and the flanges of the rotor arms. [10] According to a general characteristic, the rotor comprises blades made of a softer material than the permanent magnets positioned between the flanges of the arms and the face of the permanent magnet turned away from the axis of the rotor to maintain the magnets in centrifugation and in that the permanent magnets have in the axial direction a height and in the orthoradial direction a width, said blade having in the axial direction a height close to the height of the permanent magnets. For example, the ratio between the height of the blade and that of the height of the magnets is between 0.9 and 1.1, the value 1 being excluded. For example, the ratio between the height of the blade and that of the height of the magnets is between 0.9 and 1 (1 not being included). For example, the ratio between the height of the blade and that of the height of the magnets is between 1 and 1.1 (1 not being included). [11] A blade of substantially equal height but larger than that of the magnet allows increased support. [12] According to one characteristic, the orthoradial direction has a width close to the width of the permanent magnets. For example, the ratio between the height of the blade and that of the height of the magnets is between 0.9 and 1.1, the value 1 being excluded. For example, the ratio between the width of the blade and that of the height of the magnets is between 0.9 and 1.1, the value 1 being excluded. For example, the ratio between the width of the blade and that of the height of the magnets is between 0.9 and 1 (1 not being included). For example, the ratio between the width of the blade and that of the height of the magnets is between 1 and 1.1 (1 not being included). [13] A blade of width substantially equal to but larger than that of the magnet allows increased retention. [14] According to one embodiment, the thickness of the blades is between 0.1 30 and 0.5 mm, preferably equal to 0.3 mm. [15] In one embodiment, the blades contain glass fiber and / or epoxy resin or are made of plastic or magnetic or non-magnetic metal. [16] In one embodiment, the arms extend radially with respect to the core along a radius of curvature and the ratio between the width at the base of the arms and said radius of curvature is less than or equal to 1. [17 In one embodiment, at least one of the arms has a recess between the radial extension of the arm and each of its two flanges. [018] According to one embodiment, the rotor further comprises springs positioned inside the housing between the outer face of the core and a face of the magnet facing the axis of the rotor, these springs ensuring a maintaining the permanent magnet inside its housing against the edges of the rotor arms by deforming a radial force on the permanent magnet from the inside to the outside of the rotor. [19] Thus, it uses springs positioned within the housing between the outer face of the core and a face of the magnet facing the axis of the rotor. These springs ensure a maintenance of the magnet inside its housing against the edges of the arms of the rotor by exerting by deformation a radial force on the magnet from the inside to the outside of the rotor. The invention thus ensures a good plating of the magnet inside its housing regardless of the speed of rotation of the rotor. [20] In one embodiment, the springs work in an elastoplastic field. [021] In one embodiment, the springs each have at least one linear contact with one of the elements against which the spring is supported and at least one linear contact with the other element against which it bears the spring. [022] In one embodiment, the springs each comprise a central rounded portion, and two rounded end portions located on either side of the central rounded portion, the central rounded portion and the rounded end portions having curvatures. reversed. [23] According to one embodiment, the rotor further comprises blades made of a softer material than the permanent magnets positioned between the flanges of the arms and the face of the permanent magnet turned away from the axis of the rotor. [24] The invention further relates to the spring for the radial retention of permanent magnets as such characterized in that it comprises: - a central rounded portion, and - two rounded portions of ends located on both sides other of the central rounded portion, - the central rounded portion and the rounded end portions having inverted curvatures. BRIEF DESCRIPTION OF THE FIGURES [025] The invention will be better understood on reading the description which follows and on examining the figures that accompany it. These figures are given for illustrative but not limiting of the invention. [026] Figures 1 and 2 show a top view of the rotor according to the invention without one of its flanges; [027] Figure 2 shows a perspective view of the spring according to the invention; [28] Figures 3a-3c show front, side and top views of the spring according to the invention. [29] Figure 4 is a perspective view of the rotor equipped with these flanges balancing weight. [30] Identical, similar or similar elements retain the same reference from one figure to another.
    [0002] DESCRIPTION OF EXAMPLES OF THE INVENTION [31] Figure 1 shows a rotor 100 according to the invention of X axis intended to be mounted on a shaft (not shown). This permanent magnet rotor belongs to a rotating electrical machine, which may be a compressor used for the refrigerant compression of a motor vehicle air conditioner. Alternatively this may be an electric motor or an alternator. The tree may be a driving tree or a led tree. In known manner the electric machine comprises a stator, which may be polyphase, surrounding the rotor. This stator is carried by a housing configured to rotate the shaft via ball bearings and or needle as visible for example in the aforementioned EP 1 865 200. [32] The rotor 100 is formed by a stack of sheets extending in a radial plane perpendicular to the X axis. The sheet package forms the body of the rotor 100 and is made of ferromagnetic material. This bundle of plates here comprises a central core 101 and arms 102 extending radially and axially from the core 101 with respect to the axis X. These arms 102 each comprise at their free end two flanges 105 extending circumferentially on either side of the arms 102. The flanges 105 have the function of retaining in the radial direction permanent magnets 114 of the rotor. The flanges 105 are located at the outer periphery of the rotor 100. [33] The arms 102 are in one embodiment with the core 101. As a variant, all the arms 102 or only some of them are reported on the core 101, for example by a link type mortise-type as described in the document FR2856532. In a radial plane, the sheets of the rotor 100 all have an identical contour. The contour of the sheets is cut in a generally circular shape and comprises the arms 102 which are evenly distributed in a radial direction towards the outer periphery. The sheets are held by means of rivets 108 positioned on the same circumference of the body of the rotor 100 and passing axially from one side to the stack of sheets via openings (not referenced) for forming a manipulable and transportable assembly. The body also has openings (not referenced) to receive tie rods 109 of two flanges 200 (Figure 4) plated on either side of the rotor on its radial end faces. These flanges can be used to ensure a balancing of the rotor 101. The flanges 200 are made of non-magnetic material, for example aluminum. The rivets 108 and tie rods 109 are advantageously made of a non-magnetic material such as stainless steel. The tie rods 109 have a diameter greater than that of the rivets 108 and are implanted on a circumference of diameter greater than that of the rivets. Here the number of pulling is equal to the number of rivets. [34] The rotor 100 comprises housings 111 intended to receive the permanent magnets 114. The magnets may be rare earth or ferrite depending on the applications and the desired power of the rotating electrical machine. More specifically, the housings 111 are each delimited by two lateral faces 112 facing one another of two adjacent arms 102, an outer face of the core 101 extending between the two arms 102, and faces of edges 105 facing the core 101 belonging to the two arms 102 adjacent. These housings 111 are therefore blind by being open at their outer periphery. The housings 111 have a shape complementary to that of the magnets 114 which have a parallelepipedal shape having two bevelled angles at their inner periphery. The magnets 114 thus have a reduced section at one of their ends. The side of the beveled angle magnets 114 is located on the side of the rotor shaft 100. The side faces of the arms 102 are each formed by a first plane which extends generally radially with respect to the X axis intended to be be viewed from a bevelled angle of the magnet 114. The side faces of the arms 102 comprise a second plane inclined relative to the first plane so that two second planes facing each other of the same housing are parallel relative to each other and facing two longitudinal faces of the magnet 114. In this case, the rotor 100 comprises ten magnets 114 inserted into ten housings 111 of complementary shape. To introduce a magnet 114 into its housing or to extract it, it can for example be slid parallel to the axis X of the rotor 100. For clarity has been removed in Figure 1 one of the magnets to better identify the faces of a housing 111. It follows from the foregoing and from FIG. 1, on the one hand, that each arm 102 comprises a first portion, generally of constant width, issuing from the core 101 extended by a second portion flaring in the opposite direction to the X axis and terminated by the flanges 105 and secondly, that the magnets 114 occupy the maximum space available in the rotor. The machine can therefore have maximum power while being compact radially. A flux concentration solution is obtained, the lateral faces opposite two consecutive magnets being of the same polarity. In this embodiment the rotor has a length of 41 mm and a diameter of 61 mm. Of course it depends on the applications. [036] In other words, the rotor shown in the figure is a rotor 100 which is provided with an axis of rotation (X) and which comprises: - a central core 101, - arms 102 extending radially through relative to the core (101), these arms 102 each having two flanges (105) extending on either side of the arms 102, - permanent magnets 114 positioned inside housings 111 each delimited by two faces side facing each other of the two adjacent arms (102), an outer face of the core 101 extending between the two adjacent arms, and the flanges 105 of the arms of the rotor 100. [37] The rotor 100 comprises for each magnet a blade 119 or plate made of a less hard and more flexible material than the magnets 114. The blade 119 is rectangular flat. [38] The blades 119 are made of a softer material than the permanent magnets 114 and are positioned between the flanges 105 of the arms 102 and the face of the permanent magnet 114 turned away from the X axis of the rotor 100. In the case of permanent magnets 114 present in the axial direction a height and in the orthoradial direction a width, the blades have in said axial direction a height close to the height of the permanent magnets without being equal and in said orthoradial direction a neighboring width the width of the magnet without being equal. For example, the ratio between the height of the blade and that of the height of the magnets is between 0.9 and 1.1, the value 1 being excluded. For example, the ratio between the height of the blade and that of the height of the magnets is between 0.9 and 1.1, the value 1 being excluded. [39] Blades are made of glass fiber and / or epoxy resin. For example, in the case of a fiberglass and epoxy resin alloy, the density of the blade is between 1.8 to 2 g / cm 3. The blades can be made of simple or filled plastic materials, of composite materials loaded with glass fibers or carbon or metal alloys [40] It can be expected that in this alloy, the volume of glass fibers can represent 50 to 60% the volume of the blade. In this case, a blade is obtained whose flexural strength at 23 ° C. is greater than 640 MPa, the coefficient of elasticity at 23 ° C. is greater than 33000 MPa and the compressive strength at 23 ° C. is higher. at 690 MPa. [41] It can also be expected that in this alloy, the volume of glass fibers may represent 68 to 78% of the volume of the blade. In this case, a blade is obtained whose flexural strength at 23 ° C. is greater than 600 MPa, the coefficient of elasticity at 23 ° C. is greater than 22000 MPa and the compressive strength at 23 ° C. is higher. at 300 MPa. [42] Alternatively, the blades 119 may be made of plastic material. [43] Each blade 119 is positioned between the inner faces of two flanges 105 facing each other and the outer face of the magnets 114 facing away from the X axis. If applicable, but this is not mandatory, a softer adhesive layer than the magnet 114 is interposed between the magnet 114 and the blade 119. For more details on the blade, reference FR2784248. The blades 119 close the housings 111 and constitute retaining blades of the magnets 114 in contact with the outer periphery thereof. [44] The function of the blades is to prevent, when inserting the rotor, any dust from entering the fluid in the environment of the electric machine. They also allow holding of the magnets in the centrifugation. This maintenance is even more important in the case of ferrite magnets which have a same residual field for a same field than those of rare earth magnets. [45] For example, the thickness of the blades 119 measured in the radial direction is between 0.1 and 0.5 mm, preferably equal to 0.3 mm. [46] The rotor of FIG. 2 differs from that of FIG. 1 in that it comprises springs 122. These springs make it possible to hold the magnets 114 inside their housing 111 against the flanges 105 via the blades. 119, the rotor 100 comprises the springs 122 exerting by deformation a radial force on the magnet 114 from the inside to the outside of the rotor 100. For this purpose, the springs 122 are positioned between the inner face of the magnet 114 turned towards the X axis and the bottom of the housing 111 constituted by the face of the core 101 extending between two successive arms 102. The bottom of the housing 111 has a flat shape to facilitate the support of the springs 122 against the bottom. [47] In the case where the rotor comprises springs, the blade 119 then has the function in addition to the aforementioned functions that of distributing the forces applied by the springs 122. [48] As can be seen in FIGS. 3 and 4, each spring 122 comprises a central rounded portion 125, and two rounded end portions 126 located on either side of the central rounded portion 125. The central rounded portion 125 and the rounded end portions 126 have inverted curvatures. Indeed, there are inflection lines D1, D2 located between the central portion 125 and each end portion 126 at the location of the change of curvature between the central portion 125 and the end portions 126. The spring 122 is symmetrical with respect to a vertical plane A passing through one end of the central portion where the tangent to the curve of the spring 122 is horizontal (see Figure 3a). [49] The radius of curvature R1 of the central portion 125 is greater than the radius of curvature R2 of the end portions 126. Preferably, the radius R1 of curvature of the central portion 125 is about three times greater than the radius R2 of curvature end portions 126. [050] In the free state, that is to say uncompressed, the springs 122 have a width L1 less than the distance between two arms 102 at the core 101, and a height L2 slightly greater than the distance between the core 101 and the face of the magnet 114 turned towards the axis X. The length L3 of the springs 122 is substantially equal to the axial height of the rotor 100. [ 51] Each spring 122 preferably has a tapered end 127 in a longitudinal direction of the spring 122 to facilitate the insertion of the spring 122 between a magnet 114 and an inner face of a housing 111 of said magnet 114. [52] Each spring 122 further comprises a slot 129 along the end bisea 127 to reduce the rigidity of said beveled end 127 and thus retain the effect of the spring. The slot 129, of width L4, extends between two inclined plane portions forming the beveled end 127. Preferably, the slot 129 extends over a length slightly greater than the length along which the beveled end extends. 127. [53] During assembly, the permanent magnets 114 with the blades 119 having been previously introduced inside the housings 111. The springs 122 are inserted between two arms 102 adjacent by their beveled end 127 between the face of the magnets 114 and the core 101 of the rotor. [54] Preferably, as shown in Figure 2, the spring 122 is positioned so that the convexity of the central portion 125 is positioned on the side of the inner face of the magnet 114; while the convexity of the end portions 126 is on the side of the core 101 of the rotor 100. [55] The spring 122 then has a linear contact C1 with one of the elements against which it bears, in this case the face of the magnet 114 via the central portion 125, and two linear contacts C2 with the other element, in this case the bottom of the housing 111 via the end portions 126. Alternatively, it would be possible to return the springs 122 so that they have a linear contact with the bottom of the housing 111 and two linear contacts with the face of the magnet 114. [56] The height of the space between the magnet 114 and the core 101 being lower at the height L2 of the spring, this insertion of the spring 122 between the core 101 and the magnet 114 tends to compress the spring 122 according to its height, which has the effect of moving the ends of the spring 122 one of the other. By reaction, the spring 122 thus deformed then tends to exert a radial force F1 from the inside to the outside of the rotor on the magnet 114 so as to hold it against the flanges 105 (see Figure 1). The springs 122 preferably work in an elastoplastic field in order to limit the stresses to the springs 122. In addition, the width L1 of the spring 122 is a function of the width of the bottom of the associated housing 111 so that the stressed spring come in contact with the bottom edges of the housing to work in good conditions. This spring 122 catches the games so that manufacturing tolerances can be wide. In another embodiment the housings 111 are of constant width equal to the width of the bottom of the housing 111 of Figure 1. It is the same magnets 114 mounted in the housing 111; the arms being wider at the core 101. The electric machine of this other embodiment then being less powerful, the springs 122 being preserved, while the magnets 114 are less wide. [57] In one embodiment, the springs 122 may be made of stainless steel, or any other material adapted to the desired maintenance function. In an exemplary non-limiting embodiment, each spring 122 has a width L1 of the order of 5 millimeters, a height L2 of the order of 1.5 millimeters, and a length L3 of the order of 40 millimeters. The radius of curvature R1 of the central portion 125 is of the order of 1.8 millimeters; while the radius of curvature R2 of the end portions is of the order of 0.6 millimeter. The slot 129 has a width L4 of the order of 0.4 millimeters. The tapered end 127 forms an angle K of the order of 12 degrees with respect to a horizontal plane B passing through one end of the central portion 125 (see Figure 4b). [58] Of course, those skilled in the art can change the size and configuration of the rotor 100 or the spring 122 described in the figures without departing from the scope of the invention. Thus, in particular, the spring 122 may present, in place of the rounded shapes of the central portion 125 and the end portions 126, triangular shapes (V-shaped) or U-shaped shapes. [59] The terms "horizontal" and "vertical" are meant with respect to a spring 122 having its two end portions 126 resting on a flat surface, with the central portion 125 facing upwards. [60] Of course the present invention is not limited to the embodiments described. Thus the number of magnets and housing may be less than or greater than ten depending on the applications. Core 101 of the sheet package may be rotatably connected to the shaft of the rotating electrical machine in different ways. For example, the shaft may comprise a knurled portion being harder than the sheets of the rotor body. In this case, in a known manner, the shaft is forced into the interior of the central opening of the rotor delimited by the core. The rotational connection may be alternatively made using a key device intervening between the outer periphery of the shaft and the inner periphery of the core. Alternatively, the rotational connection is made via a central hub grooved internally for its connection with the shaft. [61] The aforementioned flanges may provide a generally sealed mounting of the rotor in association with the blades 119. These flanges may include projections with blind holes for mounting balance weights in appropriate locations as described in DE 2 346 345 to which we will refer. [62] Alternatively each flange 200 may carry a balancing weight 330 in the form of a half ring, one of which is visible in Figure 4 without modification of the implantation of rivets 18 and tie rods 109. The two rings are globally diametrically opposed and each have recesses for receiving the heads of rivets 108 and tie rods 109 as shown in Figure 5. The recesses are oblong. The balancing weights will be 330 brass beings. It is the same as a variant of the flanges 200. [63] The rotor shaft can directly drive the pallets of the compressor. The rotor and the stator may be cooled by the coolant [64] The rotary electric machine, provided with a rotor according to the invention, may comprise a polyphase stator, for example of the three-phase type, whose phase outputs are connected, in known manner, to a driving inverter of the machine as described for example in the application EP 0 831 580 to which reference will be made. [65] It is apparent from the description and drawings that the spring 122 is compact radially and has a beveled end 127 facilitating its insertion between the magnet 114 and the core 101. This spring 122 works in good conditions because it works in an elastoplastic field without coming into contact with the edges of the flat bottom of the housing 111 concerned. This spring 122, of rounded shape, works elastically and has a reduced number of support points, here three in number. [66] The number of magnets 114 may alternatively be smaller than the number of housings depending on the desired power of the rotating electrical machine. For example, two diametrically opposed housings may be empty. In variants the magnets can be of different shade to reduce costs. For example, at least two diametrically opposed housings can be equipped with ferrite magnets and the others with rare earth magnets more powerful but more expensive.
    权利要求:
    Claims (10)
    [0001]
    REVENDICATIONS1. Rotor (100) for an electric machine, said rotor being provided with an axis of rotation (X) and comprising: - a central core (101), - arms (102) extending radially relative to the core (101) ), these arms (102) each having two flanges (105) extending on either side of the arms (102), - permanent magnets (114) positioned inside housings (111) each delimited by two side faces facing each other of the two adjacent arms (102), an outer face of the web (101) extending between the two adjacent arms, and the flanges (105) of the rotor arms (100). ), characterized in that it comprises blades (119) made of a more flexible material than the permanent magnets (114) positioned between the flanges (105) of the arms (102) and the face of the permanent magnet (114) turned away from the axis (X) of the rotor (100) to hold the magnets in centrifugation and in that the permanent magnets have in the axial direction one ha and in the orthoradial direction a width, said blade having in the axial direction a height close to the height of the permanent magnets, the ratio between the width of the blade and that of the magnet being between 0.9 to 1.1 without being equal to 1.
    [0002]
    2. Rotor according to the preceding claim, characterized in that said blade (119) has in the orthoradial direction a width close to the width of the permanent magnets (114), the ratio between the width of the blade and that of the magnet being between 0.9 to 1.1 without being equal to 1.
    [0003]
    3. Rotor according to claim 1 or 2, characterized in that the thickness of the blades is between 0.1 and 0.5 mm, preferably equal to 0.3 mm.
    [0004]
    4. Rotor according to one of the preceding claims, characterized in that the blades are made of simple or filled plastic materials, composite materials loaded with glass fibers or carbon or metal or metal alloys.
    [0005]
    5. Rotor according to one of the preceding claims, characterized in that the arms (102) extend radially relative to the core (101) along a radius of curvature and the ratio between the width at the base of the arms and said radius of curvature is less than or equal to 1.
    [0006]
    6. Rotor according to one of the preceding claims, characterized in that at least one arm (102) has a recess between the radial extension of the arm and each of its two flanges (105).
    [0007]
    7. Rotor according to one of the preceding claims, characterized in that it further comprises springs (122) positioned inside the housing (111) between the outer face of the core (101) and a face of the magnet (114) facing the axis (X) of the rotor (100), these springs (122) ensuring a maintenance of the permanent magnet (114) inside its housing (111) against the flanges ( 105) of the rotor arms by deforming a radial force (F1) on the permanent magnet (114) from the inside to the outside of the rotor (100).
    [0008]
    8. Rotor according to claim 7, characterized in that the springs (122) work in an elastoplastic field.
    [0009]
    9. Rotor according to claim 7 or 8, characterized in that the springs (122) each have at least one linear contact (C1) with one of the elements against which the spring (122) bears and at least one linear contact ( C2 C3) with the other element against which the spring is supported.
    [0010]
    10. Rotor according to one of claims 7 to 9, characterized in that the springs (122) each comprise a portion (125) rounded central and two end portions (126) rounded on either side of the rounded central portion (125), the central rounded portion (125) and the rounded end portions (126) having inverted curvatures.
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    同族专利:
    公开号 | 公开日
    WO2015075364A3|2015-11-05|
    FR3013529B1|2017-04-14|
    WO2015075364A2|2015-05-28|
    CN105745821A|2016-07-06|
    JP2016537950A|2016-12-01|
    US20160294237A1|2016-10-06|
    US10033235B2|2018-07-24|
    CN105745821B|2018-12-28|
    EP3072217A2|2016-09-28|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP2372874A2|2010-03-31|2011-10-05|Valeo Equipements Electriques Moteur|Synchronous rotating electric machine with permanent magnets and flux concentration|
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    FR3055484A1|2016-08-31|2018-03-02|Valeo Equipements Electriques Moteur|ROTOR OF ROTATING ELECTRIC MACHINE WITH AT LEAST ONE CURVED PORTION OF RECEIVING A SPRING|DE2346345A1|1973-09-14|1975-03-27|Bosch Gmbh Robert|Injection moulded skin-casing for FHP motor laminated rotor - has axially parallel holes around circumference for balancing-weights|
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    ES2193305T3|1996-09-21|2003-11-01|Diehl Ako Stiftung Gmbh & Co|INSTALLATION FOR THE CONTROL OF THE DRIVING CURRENT OF A PERMANENT MOTOR ELECTRIC SWITCHED.|
    FR2784248B1|1998-10-02|2000-12-22|Valeo Equip Electr Moteur|VEHICLE ALTERNATOR WITH GAME RETRACTION ON INTERPOLAR MAGNETS|
    IT1320322B1|2000-04-28|2003-11-26|Filippis Pietro De|PERMANENT MAGNET BRUSHLESS MOTOR.|
    FR2856532A1|2003-05-27|2004-12-24|Valeo Equip Electr Moteur|Electrical rotating machine e.g. alternator, for motor vehicle, has joint with radial retention intervening between central core and one of projecting intermediate parts that are equipped with recess for housing permanent magnet|
    JP2006283683A|2005-04-01|2006-10-19|Sanden Corp|Hybrid compressor|
    US8138649B2|2007-08-02|2012-03-20|Remy Technologies, L.L.C.|Magnet support and retention system for hybrid rotors|
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    DE202010017376U1|2010-08-16|2014-01-08|Robert Bosch Gmbh|Attaching magnets to a rotor|
    CN202221930U|2011-08-11|2012-05-16|中山大洋电机制造有限公司|Motor permanent magnet rotor structure|
    CN102931795B|2011-08-11|2014-11-12|中山大洋电机制造有限公司|Motor structure|
    DE102011085118A1|2011-10-24|2013-04-25|Robert Bosch Gmbh|Holder for electrical machines|
    KR101310489B1|2012-02-10|2013-09-24|삼성전기주식회사|Rotor assembly for a motor and manufacturing method thereof|US10566864B2|2015-11-06|2020-02-18|Arcelik Anonim Sirketi|Magnet retainer for use in an electric motor|
    CN106685114A|2015-11-09|2017-05-17|南车株洲电力机车研究所有限公司|Rotor used for permanent magnet motor|
    DE102016209174A1|2016-05-25|2017-11-30|Continental Automotive Gmbh|Rotor and method of manufacturing a rotor|
    US10374477B2|2017-03-17|2019-08-06|General Electric Company|Electric machine with separable magnet carrier|
    JP6940965B2|2017-03-23|2021-09-29|本田技研工業株式会社|IPM rotor and rotary machine|
    DE102017111955A1|2017-05-31|2018-12-06|Schaeffler Technologies AG & Co. KG|Cost-optimized rotor of an electric machine|
    CN110277846B|2018-03-16|2021-06-18|本田技研工业株式会社|Rotor, rotating electric machine, and method for mounting magnet of rotor|
    US20190386551A1|2018-06-13|2019-12-19|Mitsubishi Heavy Industries, Ltd.|Coil, rotating electrical machine, rotating electrical machine system, and method of manufacturing permanent magnet|
    IT201800010897A1|2018-12-07|2020-06-07|Nidec Sole Motor Corp S R L|ROTOR OF A PERMANENT MAGNET ELECTRIC MOTOR AND RELATED ASSEMBLY PROCEDURE|
    法律状态:
    2015-11-30| PLFP| Fee payment|Year of fee payment: 3 |
    2016-11-30| PLFP| Fee payment|Year of fee payment: 4 |
    2017-11-30| PLFP| Fee payment|Year of fee payment: 5 |
    2019-11-29| PLFP| Fee payment|Year of fee payment: 7 |
    2020-11-30| PLFP| Fee payment|Year of fee payment: 8 |
    2021-11-30| PLFP| Fee payment|Year of fee payment: 9 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1361402A|FR3013529B1|2013-11-20|2013-11-20|BLINDS FOR MAINTAINING MAGNETS|FR1361402A| FR3013529B1|2013-11-20|2013-11-20|BLINDS FOR MAINTAINING MAGNETS|
    JP2016532610A| JP2016537950A|2013-11-20|2014-11-17|Plate for holding magnet|
    PCT/FR2014/052938| WO2015075364A2|2013-11-20|2014-11-17|Magnet-holding plates|
    EP14809937.7A| EP3072217A2|2013-11-20|2014-11-17|Magnet-holding plates|
    US15/035,292| US10033235B2|2013-11-20|2014-11-17|Plates for retention of magnets|
    CN201480063234.9A| CN105745821B|2013-11-20|2014-11-17|For keeping the plate of magnet|
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