Motor assembly and vehicle

Abstract

The invention discloses a motor assembly and a vehicle. The motor assembly comprises a motor, a controller and a busbar assembly, wherein the busbar assembly comprises a plurality of busbars which are connected in parallel; wherein each busbar comprises a terminal part connected with the controller, a pin part connected with a stator of the motor, and a leading-out wire connected between the terminal part and the pin part, and at least one part of the leading-out wire is bent along the peripheral shape of the stator of the motor. According to the embodiment of the invention, the space utilization rate of the outer side of the motor is improved, the configurable space of the motor assembly is increased, the size of the motor assembly can be further reduced, and the miniaturization of the motor assembly is realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a motor assembly and a vehicle. BACKGROUND

[0002] It is known that a busbar assembly includes a first connecting bar, a second connecting bar and a third connecting bar, the first connecting bar, the second connecting bar and the third connecting bar are sequentially and spacedly arranged on the outer side of the motor along the radial direction of the motor, and are coaxially arranged with the motor (for example, refer to Chinese invention patent CN117375286A).

[0003] However, since the busbar is arranged on the outer side of the motor along the radial direction of the motor, the busbar occupies a large space, resulting in a large size of the motor assembly. SUMMARY

[0004] Therefore, the embodiments of the present application provide a motor assembly and a vehicle to solve the technical problem of large size of the motor assembly.

[0005] To achieve the above-mentioned purpose, the embodiments of the present application provide a motor assembly, comprising a motor, a controller and a busbar assembly, the busbar assembly comprises a plurality of busbars connected in parallel with each other;

[0006] Each busbar comprises a terminal portion connected with the controller, a pin portion connected with the stator of the motor, and a lead wire connected between the terminal portion and the pin portion, at least a part of the lead wire is bent along the outer peripheral shape of the stator of the motor.

[0007] Optionally, along the axial direction of the motor, the projections of at least a part of the lead wires of the respective busbars overlap together.

[0008] Optionally, one end portion of the lead wire has a first bending portion, the first bending portion extends along the surface of the stator of the motor and maintains a distance above a preset distance.

[0009] Optionally, the first bending portion comprises a first connecting portion, a second connecting portion and a third connecting portion connected in sequence, the first connecting portion is connected with the side of the terminal portion close to the motor, and the second connecting portion and the third connecting portion both extend along the surface of the stator of the motor and maintain a distance above a preset distance.

[0010] Optionally, along the axial direction of the motor, the projection of at least a part of the terminal portion overlaps with the projection of at least a part of the first bending portion.

[0011] Optionally, the terminal portions of the plurality of busbars are located on the same radial plane, and / or the pin portions of the plurality of busbars are located on the same radial plane.

[0012] Optionally, an insulating member is arranged between the outgoing lines of adjacent busbars.

[0013] Optionally, an insulating fixing member is further arranged on the insulating member, and the insulating fixing member is used for fixing the busbar assembly on the housing of the motor.

[0014] Optionally, the number of busbars is three or six.

[0015] The embodiment of the present application further provides a vehicle comprising the motor assembly in any of the above embodiments.

[0016] The embodiment of the present application not only improves the space utilization rate of the motor, increases the configurable space of the motor assembly, but also further reduces the size of the motor assembly, and realizes the miniaturization of the motor assembly.

[0017] The further effects of the above non-conventional optional mode will be described in the following combined with the specific embodiments. DETAILED DESCRIPTION

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0019] Figure 1 is a front view of the motor assembly according to an embodiment of the present application.

[0020] Figure 2 is a side view of the motor assembly according to an embodiment of the present application.

[0021] Figure 3 is a front view of the busbar assembly according to an embodiment of the present application.

[0022] Figure 4 is a perspective structural schematic view of the busbar assembly according to an embodiment of the present application.

[0023] Figure 5 is a side view of the busbar assembly according to an embodiment of the present application.

[0024] Figure 6 is a perspective structural schematic view of the busbar according to an embodiment of the present application.

[0025] Figure 7 is a perspective structural schematic view of the busbar assembly according to another embodiment of the present application.

[0026] Figure 8 is a side view of the busbar assembly according to another embodiment of the present application.

[0027] Figure 9 is a front view of the busbar assembly according to still another embodiment of the present application.

[0028] Figure 10 is a perspective structural schematic view of the busbar assembly according to still another embodiment of the present application.

[0029] Reference signs are as follows:

[0030] 1 - motor assembly;

[0031] 2 - motor;

[0032] 3 - controller;

[0033] 4 - busbar assembly;

[0034] 5 - busbar;

[0035] 51 - terminal portion;

[0036] 52 - lead wire;

[0037] 53 - pin portion;

[0038] 54 - first bent portion;

[0039] 541 - first connecting portion;

[0040] 542 - second connecting portion;

[0041] 543 - third connecting portion;

[0042] 55 - second bent portion;

[0043] 551 - fourth connecting portion;

[0044] 552 - fifth connecting portion;

[0045] 6 - insulating member;

[0046] 7 - insulating fixing member. DETAILED DESCRIPTION

[0047] In order to make the persons skilled in the art better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by the persons skilled in the art without creative labor should belong to the protection scope of the present application.

[0048] In the description of the present application, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial" and the like is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0049] In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0050] The embodiment of the present application provides a motor assembly, as shown in the figure, the motor assembly 1 comprises a motor 2, a controller 3 and a busbar assembly 4, as shown in the figure, the busbar assembly 4 comprises a plurality of busbars 5 connected in parallel with each other. As shown in the figure, each busbar 5 comprises a terminal part 51 connected with the controller 3, a pin part 53 connected with the stator of the motor 2, and a lead-out wire 52 connected between the terminal part 51 and the pin part 53, at least a part of the lead-out wire 52 is bent along the outer peripheral shape of the stator of the motor 2. In order to reduce the radial space occupied by the busbar assembly 4, the embodiment of the present application not only improves the space utilization rate of the outside of the motor 2, increases the configurable space of the motor assembly 1, but also can further reduce the size of the motor assembly 1, realizes the miniaturization of the motor assembly 1. Figures 1-2 Figures 3-5 As shown in the figure, the busbar assembly 4 comprises a plurality of busbars 5 connected in parallel with each other. As shown in the figure, each busbar 5 comprises a terminal part 51 connected with the controller 3, a pin part 53 connected with the stator of the motor 2, and a lead-out wire 52 connected between the terminal part 51 and the pin part 53, at least a part of the lead-out wire 52 is bent along the outer peripheral shape of the stator of the motor 2. In order to reduce the radial space occupied by the busbar assembly 4, the embodiment of the present application not only improves the space utilization rate of the outside of the motor 2, increases the configurable space of the motor assembly 1, but also can further reduce the size of the motor assembly 1, realizes the miniaturization of the motor assembly 1. Figure 6 It should be noted that the radial direction of the motor 2 refers to the direction indicated by the dashed line (X axis) in the figure, and the axial direction of the motor 2 refers to the direction indicated by the solid line (Z axis) in the figure.

[0051] Figure 1 Figure 2

[0052] ​​​​In the embodiments of the present application, the busbar assembly 4 mainly plays the role of electrical conduction, so the busbar assembly can be made of copper, and the busbar assembly 4 can include a plurality of busbars 5, each of which is connected in parallel with each other, and the number of busbars 5 is three or six. Optionally, the shape of the busbar 5 can be a sheet or a plate. In order to avoid short circuit of the busbar assembly 4, a certain interval distance needs to be maintained between adjacent busbars 5, and under the premise of ensuring a certain interval distance between adjacent busbars 5, each busbar 5 is arranged in sequence along the axial direction of the motor 2.

[0053] It should be noted that an insulation distance also needs to be maintained between the lead-out wire 52 and the stator of the motor 2 to avoid short circuit.

[0054] In some embodiments of the present application, as shown in Figures 1-3 along the axial direction of the motor 2, the projections of the lead-out wires 52 of each busbar 5 near at least a part of the terminal portion 51 overlap together. As shown in Figure 3 assuming that the number of busbars 5 is three, the first busbar (the uppermost busbar) is connected with the U-phase lead-out wire of the stator winding of the motor 2, the second busbar (the middle busbar) is connected with the V-phase lead-out wire of the stator winding of the motor 2, and the third busbar (the lowermost busbar) is connected with the W-phase lead-out wire of the stator winding of the motor 2. Then along the axial direction of the motor 2, the projection of the lead-out wire 52 of the first busbar near at least a part of the terminal portion 51 is located on the lead-out wire 52 of the second busbar, and the projection of the lead-out wire 52 of the second busbar near at least a part of the terminal portion 51 is located on the lead-out wire 52 of the third busbar, so the projections of the lead-out wires 52 of the three busbars near at least a part of the terminal portion 51 overlap together, which can further reduce the radial space occupied by the busbar assembly 4, improve the space utilization, increase the configurable space of the motor assembly 1, and help to further reduce the size of the motor assembly 1, thereby realizing the miniaturization of the motor assembly 1.

[0055] Optionally, at least a part (near the pin portion 53) of the lead-out wire 52 of each busbar 5 is bent along the outer peripheral shape of the stator of the motor 2, and at least another part (near the terminal portion 51) of the lead-out wire 52 of each busbar 5 overlaps together along the axial direction of the motor 2, which makes the structure of the busbar assembly 4 more compact, helps to reduce the radial space occupied by the busbar assembly 4, and helps to reduce unnecessary space waste to provide more available space for other key components or systems.

[0056] Optionally, along the axial direction of the motor 2, the bending amplitude of the busbar 5 gradually decreases, so that the overall structure of the busbar assembly 4 is more compact, which helps to reduce the radial space occupied by the busbar assembly 4. As shown in Figures 3-4As shown, assuming the number of busbars 5 is three, the first busbar (the uppermost busbar) has the largest bending amplitude, the second busbar (the middle busbar) has the second largest bending amplitude, and the third busbar (the lowermost busbar) has the smallest bending amplitude.

[0057] In some embodiments of the present application, as shown in Figure 6 As shown, one end of the lead-out wire 52 has a first bending portion 54, which extends along the surface of the stator of the motor 2 and keeps a distance above a preset distance. Optionally, the preset distance can be a minimum insulation distance, so the distance between the first bending portion 54 and the surface of the stator of the motor 2 is greater than or equal to the minimum insulation distance. The first bending portion 54 avoids the stator of the motor 2 by bending, thereby achieving the purpose of reducing the space occupied by the busbar assembly 4. The first bending portion 54 includes a first connecting portion 541, a second connecting portion 542, and a third connecting portion 543 connected in sequence, the first connecting portion 541 is connected with the terminal portion 51, and the second connecting portion 542 and the third connecting portion 543 both extend along the surface of the stator of the motor 2 and keep a distance above a preset distance. Optionally, the preset distance can be a minimum insulation distance, so the distance between the second connecting portion 542 and the third connecting portion 543 and the surface of the stator of the motor 2 is greater than or equal to the minimum insulation distance. In this way, the radial space occupied by the busbar 5 can be reduced as much as possible, so that the assembly distance between the controller 3 and the motor 2 is as small as possible, while maintaining the insulation distance and effectively connecting the terminal portion 51 with the busbar of the controller 3, the motor assembly 1 is miniaturized.

[0058] Optionally, as shown in Figure 6 The second connecting portion 542 is perpendicular to the first connecting portion 541 and the third connecting portion 543. The shape of the first bending portion 54 is similar to a "Z" shape, and the end of the lead-out wire 52 is connected with the terminal portion 51 through the first bending portion 54, so that the radial space occupied by the busbar 5 can be reduced as much as possible, so that the assembly distance between the controller 3 and the motor 2 is as small as possible, while maintaining the insulation distance and effectively connecting the terminal portion 51 with the busbar of the controller 3, the motor assembly 1 is miniaturized. Since the first connecting portion 541 is connected with the terminal portion 51 close to one side of the motor 2, the lead-out wire 52 can be led out through the first bending portion 54 and extend and bend along the outer peripheral shape of the stator of the motor 2, which helps to reduce the radial space occupied by the busbar assembly 4 and improve the space utilization rate outside the motor 2.

[0059] As shown in Figure 5 Assuming the number of busbars 5 is three, the length of the third connecting portion 543 of the first busbar (the uppermost busbar) is the smallest, the length of the third connecting portion 543 of the second busbar (the middle busbar) is the second smallest, and the length of the third connecting portion 543 of the third busbar (the lowermost busbar) is the largest.

[0060] Optionally, as shown in Figure 6 the other end of the lead-out wire 52 has a second bending part 55, so that the lead-out wire 55 keeps a minimum insulation distance from the stator of the motor 2. The first bending part 55 avoids the stator of the motor 2 by bending, so as to reduce the space occupied by the busbar assembly 4. Optionally, the second bending part 55 comprises a fourth connecting part 551 and a fifth connecting part 552 connected to each other, the fifth connecting part 552 is connected with the pin part 53, and the fourth connecting part 551 extends towards the stator of the motor 2, and the fifth connecting part 552 is perpendicular to the fourth connecting part 551. The shape of the second bending part 55 is similar to the shape of the "L" letter, and the end of the lead-out wire 52 is connected with the pin part 53 through the second bending part 55, so as to reduce the space occupied by the busbar 5 as much as possible, so that the assembly distance between the controller 3 and the motor 2 is as small as possible, while keeping the insulation distance and the effective welding of the pin part 52 and the stator winding of the motor 2, the motor assembly 1 is miniaturized. Since the fourth connecting part 551 extends towards the stator of the motor 2, the pin part 53 and the stator winding of the motor 2 are effectively welded together, which ensures the connection reliability of the busbar 5 and the motor 2.

[0061] As shown in Figure 5 assuming that the number of busbars 5 is three, the length of the fourth connecting part 551 of the first busbar (the uppermost busbar) is the smallest, the length of the fourth connecting part 551 of the second busbar (the middle busbar) is the second, and the length of the fourth connecting part 551 of the third busbar (the lowermost busbar) is the largest.

[0062] In still other embodiments of the present application, as shown in Figure 5 the terminal parts 51 of the plurality of busbars 5 are located on the same radial plane, on the one hand, facilitating the one-to-one engagement of each busbar 5 with the controller 3, and on the other hand, making the overall structure of the busbar assembly 4 more compact, which helps to reduce the space occupied by the busbar assembly 4. Optionally, as shown in Figure 5 the pin parts 53 of the plurality of busbars 5 are located on the same radial plane, facilitating the one-to-one welding of each busbar 5 with the stator winding of the motor 2, and on the other hand, making the overall structure of the busbar assembly 4 more compact, which helps to reduce the space occupied by the busbar assembly 4.

[0063] In still other embodiments of the present application, as shown in Figures 1-2 along the axial direction of the motor 2, the projection of at least a portion of the terminal part 51 overlaps with the projection of at least a portion of the first bending part 55, which can shorten the distance between the controller 3 and the motor 2 as much as possible, and realize the miniaturization of the motor assembly 1.

[0064] In still other embodiments of the present application, as shown in Figures 7-8As shown, in order to ensure the insulation between the busbars 5, the insulation members 6 are arranged between the lead-out wires 52 of the adjacent busbars 5. The insulation members 6 can be made of resin. The insulation members 6 not only can play the role of insulation, but also can play the role of positioning the busbar assembly 4, preventing the busbar 5 from deviating. Moreover, by fixing the busbar 5 through the insulation members 6, the assembly convenience of the busbar assembly 4 can be improved, and the shock resistance of the busbar assembly 4 can be improved, thereby improving the shock resistance of the motor assembly 1.

[0065] It should be noted that the insulation members 6 can be sleeved on at least a part of the busbar 5, and the insulation members 6 can be sleeved at any position of the busbar 5 on the premise of ensuring the insulation of the busbar assembly 4. Generally, the busbar 5 located in the middle (such as the second busbar) needs to be sleeved with more insulation members 6 to ensure the insulation of the busbar assembly 4.

[0066] In some other embodiments of the present application, as shown in Figures 9-10 The insulation members 6 are further provided with insulation fixing members 7, which are used to fix the busbar assembly 4 to the stator of the motor 2. For example, mounting holes can be formed on the insulation fixing members 7, and bolts are screwed to the housing of the motor 2 through the mounting holes, so as to firmly fix the busbar assembly 4 to the housing of the motor 2, which helps to further improve the shock resistance and assembly convenience of the busbar assembly 4.

[0067] The embodiments of the present application further provide a vehicle comprising the motor assembly described in any of the above embodiments.

[0068] The vehicle of the embodiments of the present application has the same beneficial effects as the above busbar assembly relative to the prior art, and thus will not be described here.

[0069] The above specific embodiments do not constitute a limitation on the protection scope of the present application. Those skilled in the art should understand that various modifications, combinations, sub-combinations and substitutions can be made depending on design requirements and other factors. Any modification, equivalent replacement and improvement made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A motor assembly, characterized in that, It includes a motor, a controller, and a bus assembly, wherein the bus assembly includes multiple buses connected in parallel. Each busbar includes a terminal section connected to the controller, a pin section connected to the stator of the motor, and a lead wire connecting the terminal section and the pin section, at least a portion of which is bent along the outer periphery of the stator of the motor.

2. The motor assembly according to claim 1, characterized in that, Along the axial direction of the motor, the leads of each busbar overlap at least a portion of their projections near the terminal portion.

3. The motor assembly according to claim 1, characterized in that, One end of the lead wire has a first bend, which extends along the surface of the stator of the motor and at a predetermined distance or more.

4. The motor assembly according to claim 3, characterized in that, The first bending portion includes a first connecting portion, a second connecting portion, and a third connecting portion connected in sequence. The first connecting portion is connected to the side of the terminal portion near the motor. The second connecting portion and the third connecting portion both extend along the surface of the stator of the motor and maintain a preset distance or more.

5. The motor assembly according to claim 1, characterized in that, One end of the lead wire has a first bend, and along the axial direction of the motor, the projection of at least a portion of the terminal portion overlaps with the projection of at least a portion of the first bend.

6. The motor assembly according to claim 1, characterized in that, The terminal portions of the plurality of buses are located on the same radial plane, and / or the pin portions of the plurality of buses are located on the same radial plane.

7. The motor assembly according to any one of claims 1-6, characterized in that, Insulators are installed between the leads of adjacent busbars.

8. The motor assembly according to claim 7, characterized in that, The insulating component is further provided with an insulating fastener, which is used to fix the bus assembly to the housing of the motor.

9. The motor assembly according to any one of claims 1-6, characterized in that, The number of busbars is three or six.

10. A vehicle, characterized in that, Includes the motor assembly as described in any one of claims 1-9.

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