Stator assembly, motor and vehicle

Abstract

The utility model discloses a stator assembly, a motor and a vehicle, and the stator assembly comprises a stator housing which is internally provided with an installation cavity, and the installation cavity is provided with a through hole; the lead assembly is movably arranged in the mounting cavity, the lead assembly comprises a lead and a pin head, the pin head is electrically connected with the lead, and after the lead assembly is assembled in the mounting cavity, the pin head penetrates through the through hole. The lead assembly can be detached from the mounting cavity, so that when the lead assembly is poor in insulation, damaged and the like, the lead assembly can be more conveniently overhauled, maintained and troubleshot, and the pin head penetrates through the through hole, so that a high-voltage wire can be led out of the stator shell and connected with an external system, different wire outlet positions can be adapted, and the service life of the high-voltage wire can be prolonged. Moreover, the operation space of the wiring position is large, the hard wire and the flexible wire can be adaptively formed, and in addition, the lead assembly is of an independent structure, so that the assembly is more convenient and efficient.

Description

[0001] Cross-references to related applications

[0002] This application claims priority to Chinese Patent Application No. 202311862126.5, filed by BYD Company Limited on December 29, 2023, entitled “Stator Assembly, Motor and Vehicle”. Technical Field

[0003] This utility model relates to the field of vehicle technology, and in particular to a stator assembly, a motor, and a vehicle. Background Technology

[0004] In related technologies, the operating space inside the stator assembly is small, making it difficult for the lead wires to enter the internal channels of the stator assembly after the winding is completed. Moreover, due to the constraints on the winding method and position inside the stator assembly, the flexibility of the lead wires themselves is limited, making it difficult to adapt to different types of lead wires. Utility Model Content

[0005] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a stator assembly that makes it easier to inspect and maintain the lead wire assembly, troubleshoot problems, adapt to different lead wire positions, and has a large operating space for wiring positions. It can be adapted to both hard and soft wires. In addition, assembly is more convenient and efficient.

[0006] This utility model further proposes an electric motor.

[0007] This utility model further proposes a vehicle.

[0008] The stator assembly according to this utility model includes: a stator housing, wherein a mounting cavity is provided inside the stator housing, and a through hole is provided in the mounting cavity; and a lead wire assembly, wherein the lead wire assembly is movably disposed in the mounting cavity, and the lead wire assembly includes: a lead wire and a pin, wherein the pin is electrically connected to the lead wire, and after the lead wire assembly is assembled in the mounting cavity, the pin passes through the through hole.

[0009] According to the stator assembly of this utility model, the lead wire assembly can be disassembled from the mounting cavity. This makes it easier to inspect and maintain the lead wire assembly and troubleshoot problems when insulation is poor or damaged. In addition, the mounting cavity is provided with a through hole through which the pin head passes, so that the high voltage line can be led out to the outside of the stator housing and connected to the external system. It can be adapted to different line outlet positions, and the wiring position has a large operating space. Both hard wires and soft wires can be adapted and formed. Furthermore, the lead wire assembly is an independent structure, which makes assembly more convenient and efficient.

[0010] In some examples of this utility model, the lead assembly further includes: a housing, the lead integrally formed inside the housing, a first positioning part provided on the outer periphery of the housing, and a second positioning part provided inside the mounting cavity, wherein the first positioning part and the second positioning part are positioned and engaged.

[0011] In some examples of this utility model, one of the first positioning part and the second positioning part is a positioning protrusion and the other is a positioning groove.

[0012] In some examples of this utility model, a limiting part is also provided in the mounting cavity, and the limiting part is limited and engaged with one end of the outer shell.

[0013] In some examples of this utility model, the lead assembly further includes: a pin housing, the pin housing being disposed within the housing and electrically connected to the lead, the pin head contacting the pin housing, and the pin head being movable relative to the pin housing.

[0014] In some examples of this utility model, the lead assembly further includes: an end cap and an elastic element, the end cap being connected to the pin housing and disposed opposite to the through hole, the elastic element being disposed inside the pin housing, and the two ends of the elastic element being connected to the pin head and the end cap respectively.

[0015] In some examples of this utility model, the stator assembly further includes: a sleeve, the sleeve being disposed at the through hole, and the pin passing through the sleeve.

[0016] In some examples of this utility model, both the outer shell and the sleeve are insulating components.

[0017] The motor according to this utility model includes: a mover assembly; and the stator assembly described above, wherein the mover assembly is disposed on the outer peripheral side of the stator assembly and moves axially relative to the stator assembly.

[0018] The vehicle according to this utility model includes: the motor described above.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0021] Figure 1 This is a schematic diagram of the stator assembly according to an embodiment of the present utility model;

[0022] Figure 2This is a sectional view of the stator housing;

[0023] Figure 3 This is a schematic diagram of the lead wire assembly;

[0024] Figure 4 This is a cross-sectional view of the lead assembly;

[0025] Figure 5 This is a schematic diagram of the structure of a motor according to another embodiment of the present invention.

[0026] Figure label:

[0027] 1. Stator assembly;

[0028] 10. Stator housing; 11. Mounting cavity; 111. Second positioning part; 112. Limiting part; 12. Through hole; 20. Lead wire assembly; 21. Lead wire; 22. Pin head; 23. Housing; 231. First positioning part; 24. Pin housing; 25. End cover; 26. Elastic element; 30. Sleeve; 2. Motor; 40. Mover assembly. Detailed Implementation

[0029] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention are described in detail below.

[0030] The following is for reference. Figures 1-5 This invention describes a stator assembly 1 according to an embodiment of the present invention. The stator assembly 1 is typically disposed inside a vehicle generator 2 and cooperates with a mover assembly 40, primarily for generating current.

[0031] like Figure 1 As shown, the stator assembly 1 according to an embodiment of the present invention includes: a stator housing 10 and a lead wire assembly 20. The stator housing 10 mainly serves a mounting function, allowing other components of the stator assembly 1 to be mounted on the stator housing 10. The lead wire assembly 20 mainly serves a conductive function, enabling the high-voltage wires inside the stator assembly 1 to be connected to an external system.

[0032] like Figure 2 As shown, a mounting cavity 11 is provided inside the stator housing 10, and a through hole 12 is provided in the mounting cavity 11. The mounting cavity 11 mainly serves the purpose of mounting. Correspondingly, some components in the stator assembly 1 can be installed in the mounting cavity 11, while the through hole 12 can serve the purpose of communicating with the outside.

[0033] like Figures 2-5As shown, the lead assembly 20 is movably disposed in the mounting cavity 11. The lead assembly 20 includes a lead 21 and a pin 22. The pin 22 is electrically connected to the lead 21, and after the lead assembly 20 is assembled in the mounting cavity 11, the pin 22 passes through a through hole 12. The lead 21 can also be a high-voltage wire.

[0034] The lead assembly 20 is movably mounted on the mounting cavity 11. That is, the lead assembly 20 can be slidably assembled into the interior of the mounting cavity 11 along the mounting direction of the mounting cavity 11. The installation method is simple, which facilitates the installation and setting of the lead assembly 20. Moreover, the lead assembly 20 can be removed from the mounting cavity 11. This makes it easier to inspect and maintain the lead assembly 20 and troubleshoot problems when there are issues such as poor insulation or damage.

[0035] In addition, lead wire 21 mainly serves as an electrical connection, transmitting current, while pin 22 mainly serves as a conductor, connecting pin 22 to lead wire 21 to allow current to flow between them. Furthermore, after lead wire assembly 20 is assembled in mounting cavity 11, pin 22 can pass through through hole 12 to allow high-voltage wire exit. After passing through through hole 12, pin 22 can connect to an external system, thus enabling conductivity between the external system, pin 22, and lead wire 21. Current generated on motor 2 can be led out to the external system through pin 22 and lead wire 21. Lead wire 21 and pin 22 can be made of the same metallic conductor material.

[0036] Therefore, the lead assembly 20 can be disassembled from the mounting cavity 11. This makes it easier to inspect and maintain the lead assembly 20 and troubleshoot problems when insulation is poor or damage occurs. In addition, the mounting cavity 11 is provided with a through hole 12, through which the pin head 22 passes, so that the high voltage line can be led out to the outside of the stator housing 10 and connected to the external system. It can be adapted to different line outlet positions, and the wiring position has a large operating space. Both hard wires and soft wires can be adapted and formed. Furthermore, the lead assembly 20 is an independent structure, which makes assembly more convenient and efficient.

[0037] In addition, such as Figures 2-5As shown, the lead assembly 20 also includes a housing 23, with the lead 21 integrally formed inside the housing 23. A first positioning part 231 is provided on the outer periphery of the housing 23, and a second positioning part 111 is provided in the mounting cavity 11. The first positioning part 231 and the second positioning part 111 are positioned and engaged. The housing 23 primarily serves as the mounting surface, and other components of the lead assembly 20 can be mounted on it. Integrating the lead 21 into the housing 23 means that the lead 21 and the housing 23 are a single, integrated structure. This simplifies and facilitates the installation and setup of the lead assembly 20. Furthermore, this design eliminates the need to machine complex-shaped lead channels inside the stator housing 10, and there are no metal parts in contact with the lead 21. This not only facilitates production but also provides excellent protection for the lead 20. The lead 21 and the housing 23 can be integrated through injection molding or rubber vulcanization, achieving insulation and preventing leakage between them.

[0038] Furthermore, both the first positioning part 231 and the second positioning part 111 serve a positioning function. The first positioning part 231 and the second positioning part 111 engage in a positioning cooperation. This cooperation allows for easier and faster installation of the lead assembly 20 into the mounting cavity 11 during installation, improving installation accuracy and efficiency. Moreover, the cooperation of the first positioning part 231 and the second positioning part 111 also provides circumferential restraint on the lead assembly 20, preventing relative rotation and enhancing its stability, thus enabling better operation. Additionally, placing the first positioning part 231 on the outer periphery of the housing 23 and the second positioning part 111 within the mounting cavity 11 provides a more rational arrangement, facilitating their cooperation.

[0039] Specifically, such as Figure 2 and Figure 3 As shown, one of the first positioning part 231 and the second positioning part 111 is a positioning protrusion, and the other of the first positioning part 231 and the second positioning part 111 is a positioning groove. For example, if the first positioning part 231 can be a positioning protrusion, then the second positioning part 111 can be a positioning groove. The positioning protrusion moves along the positioning groove, improving the installation accuracy and efficiency of the housing 23, and can better limit the circumferential positioning of the housing 23, thus improving the stability of the housing 23 after installation. Moreover, the structure of the positioning protrusion and the positioning groove is relatively simple, easy to set, and convenient for processing and design. In addition, setting the first positioning part 231 and the second positioning part 111 as a positioning protrusion and a positioning groove makes it easy to position and assemble from the outside, which is very beneficial for operation and observation.

[0040] In addition, such as Figure 2 As shown, a limiting part 112 is also provided inside the mounting cavity 11, which is in a limiting engagement with one end of the outer shell 23. The limiting part 112 mainly serves a limiting function. The limiting part 112 is in a limiting engagement with one end of the outer shell 23. In this way, when the outer shell 23 is installed into the mounting cavity 11, the limiting part 112 can limit the axial movement of the outer shell 23. When the outer shell 23 contacts the limiting part 112, the limiting part 112 can restrict the outer shell 23 from continuing to move along the axial direction, thereby ensuring that the outer shell 23 is installed in place, improving the installation accuracy of the outer shell 23, and thus allowing the pin head 22 to accurately engage with the through hole 12.

[0041] In addition, such as Figures 1-5 As shown, the lead assembly 20 also includes a pin housing 24, which is disposed within the housing 23 and is electrically connected to the lead 21. A pin head 22 contacts the pin housing 24 and is movable relative to it. The pin housing 24 serves both as an installation element and as a conductor. By placing the pin housing 24 within the housing 23, its position is secured, making its installation more reliable and stable, and allowing it to function more effectively. The pin housing 24 is electrically connected to the lead wire 21, and the pin head 22 is in contact with the pin housing 24, meaning that the pin head 22 and the lead wire 21 are electrically connected through the pin housing 24. Furthermore, the pin head 22 can move relative to the pin housing 24. Specifically, before installing the lead wire assembly 20 into the mounting cavity 11, the pin head 22 can be pressed into the pin housing 24, facilitating the installation of the lead wire assembly 20 into the mounting cavity 11. After the lead wire assembly 20 is installed into the mounting cavity 11, the pin head 22 can move along the pin housing 24 towards the through hole 12, thereby allowing connection to an external system. The pin housing 24 and the lead wire 21 are welded or formed as a single unit.

[0042] Furthermore, such as Figures 1-4As shown, the lead assembly 20 also includes an end cap 25 and an elastic element 26. The end cap 25 is connected to the pin housing 24 and is positioned opposite to the through hole 12. The elastic element 26 is disposed inside the pin housing 24, and its two ends are connected to the pin head 22 and the end cap 25, respectively. The end cap 25 primarily functions as a seal, connecting it to the pin housing 24 to seal one end of the pin housing 24. The elastic element 26 can be a spring, which mainly serves as a preload. The elastic element 26 is housed inside the pin housing 24, and its two ends are connected to the pin head 22 and the end cap 25, respectively. It should be noted that when the pin head 22 needs to be compressed into the pin housing 24, the pin head 22 will press against the elastic element 26, putting the elastic element 26 in a compressed state. The end cap 25 provides support for the elastic element 26. When one end of the outer housing 23 reaches the limiting part 112, the pin head 22 is directly opposite the through hole 12. Since one end of the spring is connected to the pin head 22, the pin head 22 will pop out along the pin housing 24 under the elastic force of the elastic element 26, thus passing through the through hole 12. Furthermore, the end cap 25 is positioned opposite the through hole 12. Because the two ends of the spring are connected to the end cap 25 and the pin head 22, it is easier for the pin head 22 to pass through the through hole 12 when the elastic element 26 drives the pin head 22 to move. It should be noted that when the end cap 25 is removed, the elastic element 26 and the pin head 22 can be assembled. Then, the end cap 25 can be welded or pressed onto the end of the pin housing 24 to complete the assembly.

[0043] In addition, such as Figures 1-4 As shown, the stator assembly 1 also includes a sleeve 30, which is disposed at the through hole 12, through which the pin head 22 passes. The sleeve 30 mainly serves an isolation function. It should be noted that the sleeve 30 can be connected to the through hole 12 using an interference fit. Furthermore, the sleeve 30 is flange-shaped, with the flange face mating with the inner and outer wall surfaces of the stator housing 10, thus providing a limiting function and making the sleeve 30 installation more secure and stable, allowing it to function better. By passing the pin head 22 through the sleeve 30, the sleeve isolates the pin head 22 from the stator housing 10, preventing contact between the pin head 22 and the stator housing 10, which could energize the stator housing 10 and potentially cause accidental electric shock.

[0044] In addition, such as Figures 1-4As shown, both the outer casing 23 and the bushing 30 are insulating components. That is, both the outer casing 23 and the bushing 30 serve an insulating function. The outer casing 23 insulates the lead 21 from the stator housing 10, thus preventing the lead 21 from contacting the stator housing 10 and becoming energized. Similarly, the bushing 30 insulates the pin 22 from the stator housing 10, preventing the pin 22 from contacting the stator housing 10 and becoming energized. This effectively prevents accidental electric shock. Of course, both the outer casing 23 and the bushing 30 are high-voltage resistant insulating components.

[0045] like Figure 5 As shown, the motor 2 according to an embodiment of the present invention includes: a mover assembly 40 and a stator assembly 1 as described in the above embodiments. The mover assembly 40 is disposed on the outer periphery of the stator assembly 1 and moves axially relative to the stator assembly 1. The mover assembly 40 is mainly used to generate a magnetic field. By disposing of the mover assembly 40 on the outer periphery of the stator assembly 1 and moving axially relative to the stator assembly 1, the mover assembly 40 can move to generate a magnetic field, causing the stator assembly 1 to generate current, which can then be transmitted to an external system through the lead assembly 20.

[0046] The vehicle according to an embodiment of the present invention includes: the motor 2 described in the above embodiments.

[0047] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0048] In the description of this utility model, "first feature" and "second feature" may include one or more of the features. In the description of this utility model, "multiple" means two or more. In the description of this utility model, "above" or "below" the second feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. In the description of this utility model, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature.

[0049] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0050] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A stator assembly, characterized in that, include: A stator housing (10) is provided with a mounting cavity (11) and a through hole (12) is provided in the mounting cavity (11); A lead assembly (20) is movably disposed in the mounting cavity (11). The lead assembly (20) includes a lead wire (21) and a pin (22). The pin (22) is electrically connected to the lead wire (21), and after the lead assembly (20) is assembled in the mounting cavity (11), the pin (22) passes through the through hole (12).

2. The stator assembly according to claim 1, characterized in that, The lead assembly (20) further includes: a housing (23), the lead (21) is integrally formed inside the housing (23), a first positioning part (231) is provided on the outer periphery of the housing (23), and a second positioning part (111) is provided in the mounting cavity (11), the first positioning part (231) and the second positioning part (111) are positioned and cooperated.

3. The stator assembly according to claim 2, characterized in that, One of the first positioning part (231) and the second positioning part (111) is a positioning protrusion and the other is a positioning groove.

4. The stator assembly according to claim 2, characterized in that, The mounting cavity (11) is also provided with a limiting part (112), which is in a limiting cooperation with one end of the outer shell (23).

5. The stator assembly according to claim 2, characterized in that, The lead assembly (20) further includes a pin housing (24), which is disposed inside the outer casing (23) and electrically connected to the lead wire (21). The pin head (22) contacts the pin housing (24) and is movable relative to the pin housing (24).

6. The stator assembly according to claim 5, characterized in that, The lead assembly (20) further includes an end cap (25) and an elastic element (26). The end cap (25) is connected to the pin housing (24) and is disposed opposite to the through hole (12). The elastic element (26) is disposed inside the pin housing (24) and its two ends are respectively connected to the pin head (22) and the end cap (25).

7. The stator assembly according to claim 2, characterized in that, Also includes: A sleeve (30) is provided at the through hole (12), and the pin (22) passes through the sleeve (30).

8. The stator assembly according to claim 7, characterized in that, Both the outer shell (23) and the sleeve (30) are insulating components.

9. An electric motor, characterized in that, include: Motor assembly (40); The stator assembly (1) according to any one of claims 1-8, wherein the mover assembly (40) is disposed on the outer peripheral side of the stator assembly (1) and moves axially relative to the stator assembly (1).

10. A vehicle, characterized in that, include: The motor (2) as described in claim 9.

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