Copper bar sealing structure, motor assembly and vehicle

Abstract

The application provides a copper bar sealing structure, a motor assembly and a vehicle, and relates to the technical field of vehicles. The copper bar sealing structure comprises an assembly base and a first sealing element. The assembly base has a first mounting hole on one side in a first direction, the first mounting hole is suitable for three-phase copper bars to be arranged therein, and the outer circumferential surface of the assembly base is provided with a mounting groove extending in the direction around the axis of the first mounting hole. The first sealing element is arranged in the mounting groove. The first sealing element has an inner circumferential surface facing the mounting groove and an outer circumferential surface facing away from the mounting groove, and the outer circumferential surface is inclined towards the inner circumferential surface in the direction facing the mounting hole. According to the copper bar sealing structure, the first sealing element is arranged in the inclined outer circumferential surface, the first sealing element can be prevented from being disengaged during assembly of the copper bar sealing structure, and the sealing performance is improved.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and more particularly to a copper busbar sealing structure, an electric motor assembly, and a vehicle. Background Technology

[0002] Existing copper busbar sealing structures integrate the copper busbar with the injection-molded base, featuring a sealing ring on the outer periphery. After insertion into the housing, this creates a redundant seal, preventing oil and water ingress while allowing for thermal expansion and displacement. It allows for on-site disassembly and maintenance, meeting high protection requirements. In motors, the core function of the copper busbar sealing structure is to achieve the electrical connection between the motor and the motor controller while ensuring a tight seal.

[0003] In related technologies, copper busbar sealing structures generally use adhesive dispensing or flat sealing rings to achieve sealing. Adhesive dispensing carries the risk of seal failure, while flat sealing rings pose a risk of detachment during installation of the copper busbar sealing structure. Utility Model Content

[0004] In view of the above problems, this application provides a copper busbar sealing structure. By using a first sealing element with an inclined outer peripheral surface, the first sealing element can be prevented from dislodging during the assembly of the copper busbar sealing structure, thereby improving the sealing performance.

[0005] In a first aspect, according to an embodiment of the present application, the copper busbar sealing structure includes an assembly base and a first sealing member. The assembly base has a first mounting hole on one side along a first direction. The first mounting hole is used to connect a three-phase copper busbar. The outer peripheral surface of the assembly base is provided with a mounting groove extending along the axis of the first mounting hole. The first sealing member is disposed in the mounting groove. The first sealing member has an inner peripheral surface facing the mounting groove and an outer peripheral surface facing away from the mounting groove. The outer peripheral surface is inclined toward the inner peripheral surface in the direction toward the mounting through hole.

[0006] According to the copper busbar sealing structure of the present application embodiment, during assembly, the outer peripheral surface of the first sealing member abuts against the end of the mounting through hole. At this time, the first sealing member can decompose the abutting force of the mounting through hole into a force toward the bottom wall of the mounting groove, so that the first sealing member can fit more tightly in the mounting groove, avoid the first sealing member from coming off the ring, and improve the sealing performance of the copper busbar sealing structure.

[0007] In some embodiments, the first seal further has a first side and a second side opposite to each other along the first direction, the first side connecting the inner peripheral surface and the outer peripheral surface, and the second side connecting the inner peripheral surface and the outer peripheral surface.

[0008] In the above embodiments, the contact area between the first seal and the mounting groove can be increased to improve the installation strength of the first seal, thereby improving the sealing performance of the copper busbar sealing structure.

[0009] In some embodiments, the outer peripheral surface of the first seal includes a first surface and a second surface, the first surface being connected to the second surface, and the first surface and the second surface being inclined away from the mounting base in a direction of mutual approach.

[0010] In the above embodiments, the first sealing element, with its first and second surfaces arranged at an angle, can prevent the first sealing element from coming off during the assembly of the copper busbar sealing structure, thereby improving the sealing performance; and the symmetrical arrangement of the first and second surfaces can achieve a foolproof function.

[0011] In some embodiments, the inner circumferential surface of the first seal is provided with a plurality of raised ribs.

[0012] In the above embodiments, the friction between the first seal and the mounting groove can be increased to further prevent the first seal from coming off the ring.

[0013] In some embodiments, the plurality of ribs extend in a direction surrounding the axis of the first mounting hole and are spaced apart along the axis of the first mounting hole.

[0014] In the above embodiments, the friction between the first seal and the mounting groove can be increased to further prevent the first seal from coming off the ring.

[0015] In some embodiments, the plurality of ribs includes a plurality of first ribs and a plurality of second ribs, the plurality of first ribs and the plurality of second ribs being connected in a crisscross pattern.

[0016] In the above embodiments, the friction between the first seal and the mounting groove can be increased to further prevent the first seal from coming off the ring.

[0017] In some embodiments, the assembly base includes a first base, a second base, and a limiting platform. The first base and the second base are respectively disposed on both sides of the limiting platform along the first direction. The first base has a first mounting hole and a mounting groove. The second base has a second mounting hole that communicates with the first mounting hole and is used to connect the copper busbar of the power device.

[0018] In the above embodiments, the assembly base can be stably disposed in the mounting through hole, and the gap between the first base body and the mounting through hole is sealed by the first sealing element, thereby realizing the electrical connection between the motor assembly and the electronic control assembly.

[0019] In some embodiments, the copper busbar sealing structure further includes a second sealing member, which is disposed on the side of the limiting platform facing the first base, and the second sealing member is in close contact with the outer peripheral surface of the first base along the direction surrounding the axis of the first mounting hole.

[0020] In the above embodiments, liquid cooling leakage of the motor assembly can be avoided, which could lead to damage to the electronic control components.

[0021] In some embodiments, the limiting platform is provided with a limiting rib on one side facing the first seat, and the limiting rib is located on the side of the second seal opposite to the first seat, for the purpose of restricting the second seal from coming out.

[0022] In the above embodiments, the installation strength of the second seal can be improved, preventing the second seal from coming off and causing seal failure.

[0023] In a second aspect, according to the motor assembly of the present application embodiment, the motor assembly includes the copper busbar sealing structure, housing, motor assembly and electronic control assembly as described in the above embodiments. The housing has a motor mounting cavity, an electronic control mounting cavity and a mounting through hole connecting the motor mounting cavity and the electronic control mounting cavity. The motor assembly is disposed in the motor mounting cavity. The electronic control assembly is disposed in the electronic control mounting cavity. The mounting base is disposed in the mounting through hole and the gap between the mounting base and the mounting through hole is sealed by the first sealing member.

[0024] In the above embodiments, during assembly, the second surface of the first seal abuts against the end of the mounting through hole near the electrical control mounting cavity, and decomposes the abutment force into a force toward the bottom wall of the mounting groove, so that the first seal can fit tightly in the mounting groove and prevent the first seal from falling out; and as mentioned above, the motor assembly is an integrated motor, and when the motor assembly is working, there may be a risk of liquid cooling leakage in the motor component. The leaked liquid cooling will flow into the electrical control mounting cavity through the mounting through hole, causing damage to the electrical control. Therefore, a second seal can be provided to seal the gap between the limiting platform and the mounting through hole.

[0025] In a third aspect, the vehicle according to an embodiment of this application includes the motor assembly described in the above embodiments.

[0026] Other features and advantages disclosed in this application will be set forth in the following description, or some features and advantages may be inferred from the description or determined without doubt, or may be learned by practicing the above-described technology disclosed in this application.

[0027] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0028] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 This is a partial schematic diagram of the motor assembly in some embodiments of this application.

[0029] Figure 2 This is a cross-sectional view of the motor assembly in some embodiments of this application.

[0030] Figure 3 yes Figure 2 A partial enlarged view of the embodiment.

[0031] Figure 4 This is a cross-sectional view of the motor assembly housing in some embodiments of this application.

[0032] Figure 5 This is a cross-sectional schematic diagram of the first seal in some embodiments of this application.

[0033] The reference numerals in the detailed embodiments are as follows: Motor assembly 1000, copper busbar sealing structure 100, assembly base 10, first seat 11, first mounting hole 111, mounting groove 112, second seat 12, limiting platform 13, first seal 20, inner peripheral surface 21, outer peripheral surface 22, first surface 221, second surface 222, first side surface 23, second side surface 24, third rib 25, fourth rib 26, fifth rib 27, second seal 30, limiting rib 40, housing 200, mounting through hole 210, first end 211, second end 212, three-phase copper busbar 300, first direction AA. Detailed Implementation

[0034] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0035] Existing copper busbar sealing structures integrate the copper busbar with the injection-molded base, featuring a sealing ring on the outer periphery. After insertion into the housing, this creates a redundant seal, preventing oil and water ingress while allowing for thermal expansion and displacement. It allows for on-site disassembly and maintenance, meeting high protection requirements. In motors, the core function of the copper busbar sealing structure is to achieve the electrical connection between the motor and the motor controller while ensuring a tight seal.

[0036] In related technologies, copper busbar sealing structures generally use adhesive dispensing or flat sealing rings to achieve sealing. Adhesive dispensing carries the risk of seal failure, while flat sealing rings pose a risk of detachment during installation of the copper busbar sealing structure.

[0037] Therefore, this application provides a copper busbar sealing structure 100, in which the first sealing element 20, which is inclinedly arranged on the outer peripheral surface 22, can prevent the first sealing element 20 from dislodging during the assembly of the copper busbar sealing structure 100, thereby improving the sealing performance.

[0038] like Figures 1 to 5 According to the embodiments of this application, the copper busbar sealing structure 100 includes an assembly base 10 and a first sealing element 20.

[0039] The mounting base 10 has a first mounting hole 111 on one side along a first direction for connecting a three-phase copper busbar 300. The outer peripheral surface 22 of the mounting base 10 has a mounting groove 112 extending along the axis surrounding the first mounting hole 111. A first sealing element 20 is disposed in the mounting groove 112. The first sealing element 20 has an inner peripheral surface 21 facing the mounting groove 112 and an outer peripheral surface 22 facing away from the mounting groove 112. The outer peripheral surface 22 is inclined towards the inner peripheral surface 21 in the direction facing the mounting through hole. This arrangement prevents the first sealing element 20 on the mounting base 10 from dislodging, improving the sealing performance of the copper busbar sealing structure 100.

[0040] Specifically, the copper busbar sealing structure 100 is used in the motor assembly 1000, which includes a housing 200, a motor assembly, and an electrical control assembly. The motor assembly is installed in the motor mounting cavity of the housing 200, and the electrical control assembly is installed in the electrical control mounting cavity of the housing 200. The copper busbar sealing structure 100 is installed in the mounting through hole 210, which connects the motor mounting cavity and the electrical control mounting cavity. The motor assembly is connected to a three-phase copper busbar 300, which can pass through the first mounting hole 111 in the copper busbar sealing structure 100. The electrical control assembly is connected to a power device copper busbar, and the power device copper sleeve can pass through the copper busbar sealing structure 100 to be electrically connected to the three-phase copper busbar 300. The first seal 20 is used to seal the gap between the mounting base 10 and the mounting through hole 210 to separate the motor mounting cavity and the electrical control mounting cavity.

[0041] The copper busbar sealing structure 100 can be installed in the mounting through hole 210. During this process, the mounting through hole 210 and the first sealing element 20 may come into contact, which may cause the first sealing element 20 to come off the ring and affect the sealing performance. Therefore, the outer peripheral surface 22 of the first sealing element 20 can be set to be inclined towards the inner peripheral surface 21 in the direction away from the mounting base 10, that is, inclined towards the inner peripheral surface 21 in the direction towards the mounting through hole 210. In this way, during assembly, the outer peripheral surface 22 of the first sealing element 20 abuts against the end of the mounting through hole 210. At this time, the first sealing element 20 can decompose the abutting force of the mounting through hole 210 into a force towards the inner bottom wall of the mounting groove 112, so that the first sealing element 20 can fit more tightly in the mounting groove 112, avoid the first sealing element 20 from coming off the ring, and improve the sealing performance of the copper busbar sealing structure 100.

[0042] Therefore, according to the copper busbar sealing structure 100 of this application embodiment, the first sealing member 20, which is inclinedly arranged on the outer peripheral surface 22, can prevent the first sealing member 20 from dislodging during the assembly of the copper busbar sealing structure 100, thereby improving the sealing performance.

[0043] like Figure 5 In some embodiments of this application, the first sealing member 20 further has a first side surface 23 and a second side surface 24 opposite to each other along a first direction. The first side surface 23 connects the outer peripheral surface 22 and the inner peripheral surface 21, and the second side surface 24 connects the outer peripheral surface 22 and the inner peripheral surface 21. In this way, the contact area between the first sealing member 20 and the mounting groove 112 can be increased to improve the installation strength of the first sealing member 20, thereby improving the sealing performance of the copper busbar sealing structure 100.

[0044] Understandably, during assembly, the first seal 20 is placed in the mounting groove 112. Due to the inclined outer peripheral surface 22 of the first seal 20, the abutment force on the first seal 20 is decomposed into a force towards the inner bottom wall of the mounting groove 112 and a force away from the mounting through hole 210. At this time, the inner wall of the mounting groove 112 away from the mounting through hole 210 can abut against the first side surface 23 of the first seal 20 to ensure that the first seal 20 is stably placed in the mounting groove 112, preventing the first seal 20 from dislodging, thereby improving the sealing performance of the copper busbar sealing structure 100.

[0045] Furthermore, when the copper busbar sealing structure 100 is installed in the through hole 210, the first side 23 of the first sealing member 20 can abut against the inner wall of one side of the mounting groove 112, and the second side 24 of the first sealing member 20 can abut against the inner wall of the other side of the mounting groove 112, so that the first sealing member 20 can be stably installed in the mounting groove 112, thereby improving the performance of the copper busbar sealing structure 100.

[0046] It should be explained that the first side 23, outer peripheral surface 22, second side 24 and inner peripheral surface 21 of the first seal 20 are connected in sequence. This can be understood as the first side 23 connecting the outer peripheral surface 22 and the inner peripheral surface 21, and the second side 24 connecting the outer peripheral surface 22 and the inner peripheral surface 21. That is, the first side 23, outer peripheral surface 22, second side 24 and inner peripheral surface 21 are connected to form the complete outer surface of the first seal 20. like Figure 5 In some embodiments of this application, the outer peripheral surface 22 of the first sealing member 20 includes a first surface 221 and a second surface 222. The first surface 221 is connected to the second surface 222. The first surface 221 and the second surface 222 are inclined away from the assembly base 10 in a direction that approaches each other. In this way, the first sealing member 20, with the first surface 221 and the second surface 222 inclinedly arranged, can avoid the first sealing member 20 from coming off the ring during the assembly of the copper busbar sealing structure 100, thereby improving the sealing performance. Moreover, the symmetrical arrangement of the first surface 221 and the second surface 222 can achieve a foolproof function.

[0047] It should be explained that the first surface 221 and the second surface 222 are arranged along the first direction, the first surface 221 is inclined away from the mounting base 10 in the direction close to the second surface 222, and the second surface 222 is inclined away from the mounting base 10 in the direction close to the first surface 221.

[0048] For example, when the first seal 20 is installed in the forward direction, during assembly, the second surface 222 of the first seal 20 abuts against the end of the mounting through hole 210. At this time, the first seal 20 can decompose the abutting force from the mounting through hole 210 into a force toward the bottom wall of the mounting groove 112, so that the first seal 20 can fit more tightly in the mounting groove 112, preventing the first seal 20 from coming off the ring, thereby improving the sealing performance of the copper busbar sealing structure 100.

[0049] Of course, when the first seal 20 is installed in reverse, during assembly, the first surface 221 of the first seal 20 can also abut against the end of the mounting through hole 210. At this time, the first seal 20 can decompose the abutting force of the mounting through hole 210 into a force towards the inner bottom wall of the mounting, so that the first sealing surface can fit more tightly in the mounting groove 112, avoiding the first seal 20 from coming off the ring, thereby improving the sealing performance of the copper busbar sealing structure 100.

[0050] It is understood that the first surface 221 and the second surface 222 of the first seal 20 are symmetrically arranged. No matter how the first seal 20 is installed, the first seal 20 has an inclined first surface 221 or second surface 222 that abuts against the end of the mounting through hole 210 so that the first seal 20 can fit tightly in the mounting groove 112, which has a foolproof design.

[0051] like Figure 2 and Figure 5 In some embodiments of this application, the inner circumferential surface 21 of the first seal 20 is provided with a plurality of raised ribs; in this way, the friction between the first seal 20 and the mounting groove 112 can be increased, further preventing the first seal 20 from dislodging.

[0052] Specifically, the inner circumferential surface 21 of the first seal 20 is opposite to the inner bottom wall of the mounting groove 112. The inner circumferential surface 21 of the first seal 20 is provided with multiple ribs. The multiple ribs can increase the roughness of the inner circumferential surface 21 of the first seal 20, so as to improve the friction between the first seal 20 and the inner bottom wall of the mounting groove 112, further preventing the first seal 20 from coming off during assembly, thereby improving the sealing performance of the copper busbar sealing structure 100.

[0053] There are various ways to arrange multiple raised ribs, and this application provides the following embodiments for illustration: In the first embodiment of this application, the plurality of ribs include a plurality of first ribs and a plurality of second ribs, which are connected in a crisscross pattern; this increases the friction between the first seal 20 and the mounting groove 112, further preventing the first seal 20 from coming off the ring.

[0054] For example, the plurality of ribs includes a plurality of first ribs and a plurality of second ribs. The plurality of first ribs surround the assembly base 10, and the plurality of second ribs surround the assembly base 10. The plurality of first ribs and the plurality of second ribs have an angle greater than 0° between them, so that the plurality of first ribs and the plurality of second ribs can be connected in a crisscross pattern to increase the friction between the first seal 20 and the inner bottom wall of the mounting groove 112, further preventing the first seal 20 from coming off during assembly, thereby improving the sealing performance of the copper busbar sealing structure 100.

[0055] like Figure 5 In the second embodiment of this application, a plurality of ribs extend along the direction surrounding the axis of the first mounting hole 111 and are spaced apart along the axis of the first mounting hole 111; in this way, the friction between the first seal 20 and the mounting groove 112 can be increased, further preventing the first seal 20 from dislodging.

[0056] For example, the plurality of ribs include a third rib 25, a fourth rib 26, and a fifth rib 27, which are spaced apart along a first direction and extend along the direction surrounding the axis of the first mounting hole 111 to increase the roughness of the inner circumferential surface 21 of the first seal 20, thereby increasing the friction between the first seal 20 and the inner bottom wall of the mounting groove 112, further preventing the first seal 20 from coming off during assembly, thereby improving the sealing performance of the copper busbar sealing structure 100.

[0057] It is understood that in the second embodiment, the plurality of ribs of the first seal 20 can prevent disengagement in multiple directions; in the first embodiment, the plurality of ribs of the first seal 20 can prevent disengagement in a first direction.

[0058] like Figure 1 and Figure 2 In some embodiments of this application, the assembly base 10 includes a first base 11, a second base 12, and a limiting platform 13. The first base 11 and the second base 12 are respectively disposed on both sides of the limiting platform 13 along a first direction. The first base 11 is provided with a first mounting hole 111 and a mounting groove 112. The second base 12 is provided with a second mounting hole, which communicates with the first mounting hole 111 and is used to connect the copper busbar of the power device. In this way, the assembly base 10 can be stably disposed in the mounting through hole 210, and the gap between the first base 11 and the mounting through hole 210 is sealed by the first sealing member 20, thereby realizing the electrical connection between the motor assembly and the electronic control assembly.

[0059] Exemplarily, the first base 11 can pass through the mounting through hole 210 from the side near the electrical control mounting cavity and exit from the side near the motor mounting cavity, and is disposed within the mounting through hole 210. It is assembled into position when the limiting platform 13 abuts against the end of the mounting through hole 210. In addition to its limiting function, the limiting platform 13 can also make large-area contact with the outer periphery of the mounting through hole 210 to improve the installation stability of the mounting base 10. Furthermore, the first sealing element 20 seals the gap between the first base 11 and the mounting through hole 210, allowing the motor mounting cavity and the electrical control mounting cavity to be separated, thus improving sealing performance. The motor assembly is connected to the three-phase copper busbar 300, which passes through the first mounting hole 111 within the first base 11. The electrical control assembly is connected to the power device copper busbar, which passes through the second mounting hole within the second base 12 to be electrically connected to the three-phase copper busbar 300.

[0060] like Figure 2 In some embodiments of this application, the copper busbar sealing structure 100 further includes a second sealing element 30, which is disposed on the side of the limiting platform 13 facing the first base 11, and the second sealing element 30 is in close contact with the outer peripheral surface 22 of the first base 11 along the direction surrounding the axis of the first mounting hole 111; in this way, liquid cooling leakage of the motor assembly can be avoided, which could lead to damage to the electronic control assembly.

[0061] In conjunction with the foregoing, specifically, the limiting platform 13 abuts against the side of the mounting through hole 210 near the electrical control mounting cavity. Since the motor assembly 1000 in this design is an integrated motor, meaning both the motor assembly and the electrical control assembly are housed within the same housing 200 and separated by a partition, which has the aforementioned mounting through hole 210, and the copper busbar sealing structure 100 is disposed within the mounting through hole 210, it serves to connect the motor assembly and the electrical control assembly while separating the two cavities to prevent damage to the electrical control components. Therefore, a second sealing element 30 can be provided on the side of the limiting platform 13 facing the first base 11. The second sealing element 30 can seal the gap between the limiting platform 13 and the side of the mounting through hole 210 facing the motor mounting cavity, preventing liquid cooling leakage from the motor assembly from leaking into the electrical control mounting cavity through the copper busbar sealing structure 100, thus preventing damage to the electrical control components.

[0062] like Figure 2 In some embodiments of this application, the limiting platform 13 is provided with a limiting rib 40 on one side facing the first seat 11. The limiting rib 40 is located on the side of the second seal 30 facing away from the first seat 11 and is used to restrict the second seal 30 from coming out. In this way, the installation strength of the second seal 30 can be improved, and the second seal 30 can be prevented from coming out, which would lead to seal failure.

[0063] It is understandable that a limiting rib 40 is provided on the side of the limiting platform 13 facing the first base 11. In this way, a groove suitable for the installation of the second seal 30 can be constructed between the limiting rib 40 and the first base 11. The limiting rib 40 can limit the second seal 30 to a predetermined position, ensuring that the second seal 30 can seal the gap between the limiting platform 13 and the mounting through hole 210 facing the motor mounting cavity, and preventing the liquid cooling of the motor assembly from leaking into the electrical control mounting cavity, causing damage to the electrical control assembly.

[0064] like Figures 1 to 5 According to the embodiments of this application, the motor assembly 1000 includes the copper busbar sealing structure 100 in the above embodiments; by applying the aforementioned copper busbar sealing structure 100, the sealing performance of the motor assembly 1000 can be improved, ensuring the stable operation of the motor assembly 1000.

[0065] Furthermore, the motor assembly 1000 also includes a housing 200, a motor assembly, and an electronic control assembly. The housing 200 has a motor mounting cavity, an electronic control mounting cavity, and a mounting through hole 210 connecting the motor mounting cavity and the electronic control mounting cavity. The motor assembly is disposed within the motor mounting cavity; the electronic control assembly is disposed within the electronic control mounting cavity. A mounting base 10 is disposed within the mounting through hole 210, and a first seal 20 seals the gap between the mounting base 10 and the mounting through hole 210. It is understood that during assembly, the second surface 222 of the first seal 20 is close to the electronic control mounting cavity of the mounting through hole 210. One end abuts against the other, and the abutting force is decomposed into a force toward the bottom wall of the mounting groove 112, so that the first seal 20 can fit tightly in the mounting groove 112 and prevent the first seal 20 from coming out; and as mentioned above, the motor assembly 1000 is an integrated motor. When the motor assembly 1000 is working, there may be a risk of liquid cooling leakage in the motor assembly. The leaked liquid cooling will flow into the electrical control mounting cavity through the mounting through hole 210, causing damage to the electrical control. Therefore, a second seal 30 can be provided to seal the gap between the limiting platform 13 and the mounting through hole 210.

[0066] like Figure 4 In some embodiments of this application, the mounting through hole 210 has a first end 211 facing the electrical control mounting cavity and a second end 212 facing the motor mounting cavity. The first end 211 is configured to gradually expand in the direction from the motor mounting cavity to the electrical control mounting cavity. In this way, by having the outer peripheral surface 22 inclinedly disposed on the first seal 20 and the mounting through hole 210 inclined at the end, the first seal 20 can be prevented from dislodging during the assembly of the copper busbar sealing structure 100, thereby further improving the sealing performance.

[0067] For example, during assembly, the second surface 222 of the first seal 20 is shaped to fit the first end 211 of the mounting through hole 210, which decomposes the abutment force on the first seal 20 into a force toward the inner bottom wall of the mounting groove 112, so that the first seal 20 can fit more tightly in the mounting groove 112, further improving the sealing performance.

[0068] According to the embodiments of this application, the vehicle includes the motor assembly 1000 in the above embodiments; by applying the motor assembly 1000 in the above embodiments, the driving stability of the vehicle can be improved.

[0069] In this application, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or a point connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0070] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.

[0071] In all embodiments of this application, "large" and "small" are relative terms, "more" and "less" are relative terms, and "upper" and "lower" are relative terms. The embodiments of this application will not elaborate further on the expression of such relative terms.

[0072] It should be understood that the phrases "in this embodiment," "in this application embodiment," or "as an optional implementation" throughout the specification mean that a specific feature, structure, or characteristic related to an embodiment is included in at least one embodiment of this application. Therefore, the phrases "in this embodiment," "in this application embodiment," or "as an optional implementation" appearing throughout the specification do not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Those skilled in the art should also understand that the embodiments described in the specification are all optional embodiments, and the actions and modules involved are not necessarily essential to this application.

[0073] In the various embodiments of this application, it should be understood that the sequence number of each process does not necessarily imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0074] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of protection of the claims.

Claims

1. A copper busbar sealing structure, characterized in that, include: The assembly base (10) has a first mounting hole (111) on one side along a first direction. The first mounting hole (111) is used to connect a three-phase copper busbar (300). The outer peripheral surface (22) of the assembly base (10) is provided with a mounting groove (112) extending along the axis of the first mounting hole (111). A first sealing element (20) is disposed in the mounting groove (112); The first seal (20) has an inner peripheral surface (21) facing the mounting groove (112) and an outer peripheral surface (22) facing away from the mounting groove (112), the outer peripheral surface (22) being inclined toward the inner peripheral surface (21) in the direction toward the mounting through hole.

2. The copper busbar sealing structure according to claim 1, characterized in that, The first seal (20) also has a first side (23) and a second side (24) opposite each other along the first direction, the first side (23) connecting the inner peripheral surface (21) and the outer peripheral surface (22), and the second side (24) connecting the inner peripheral surface (21) and the outer peripheral surface (22).

3. The copper busbar sealing structure according to claim 1, characterized in that, The outer peripheral surface (22) of the first seal (20) includes a first surface (221) and a second surface (222), the first surface (221) being connected to the second surface (222), and the first surface (221) and the second surface (222) being inclined away from the mounting base (10) in a direction that approaches each other.

4. The copper busbar sealing structure according to any one of claims 1-3, characterized in that, The inner circumferential surface (21) of the first seal (20) is provided with a plurality of raised ribs.

5. The copper busbar sealing structure according to claim 4, characterized in that, The plurality of protruding ribs extend along the direction surrounding the axis of the first mounting hole (111) and are spaced apart along the axis of the first mounting hole (111). And / or, the plurality of raised ribs includes a plurality of first raised ribs and a plurality of second raised ribs, the plurality of first raised ribs and the plurality of second raised ribs being connected in a crisscross pattern.

6. The copper busbar sealing structure according to any one of claims 1-3, characterized in that, The assembly base (10) includes a first base (11), a second base (12), and a limiting platform (13). The first base (11) and the second base (12) are respectively disposed on both sides of the limiting platform (13) along the first direction. The first base (11) is provided with a first mounting hole (111) and a mounting groove (112). The second base (12) is provided with a second mounting hole. The second mounting hole communicates with the first mounting hole (111) and is used to connect the copper busbar of the power device.

7. The copper busbar sealing structure according to claim 6, characterized in that, It also includes a second seal (30), which is disposed on the side of the limiting platform (13) facing the first seat (11), and the second seal (30) is in close contact with the outer peripheral surface (22) of the first seat (11) along the direction surrounding the axis of the first mounting hole (111).

8. The copper busbar sealing structure according to claim 7, characterized in that, The limiting platform (13) has a limiting rib (40) on one side facing the first seat (11). The limiting rib (40) is located on the side of the second seal (30) facing away from the first seat (11) and is used to restrict the second seal (30) from coming out.

9. A motor assembly, characterized in that, include: The copper busbar sealing structure according to any one of claims 1-8; The housing (200) has a motor mounting cavity, an electrical control mounting cavity, and a mounting through hole (210) connecting the motor mounting cavity and the electrical control mounting cavity; A motor assembly, wherein the motor assembly is disposed within the motor mounting cavity; An electronic control component, wherein the electronic control component is disposed within the electronic control mounting cavity; The assembly base (10) is located inside the mounting through hole (210), and the gap between the assembly base (10) and the mounting through hole (210) is sealed by the first sealing member (20).

10. A vehicle, characterized in that, Includes the motor assembly according to claim 9.

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