Conductive assembly, driving device and vehicle

Abstract

The invention provides a conductive assembly, a driving device and a vehicle, the conductive assembly is arranged in a mounting space in a driving shaft assembly for use, the conductive assembly comprises a conductive connecting part and a conductive main body part which are connected, and the conductive main body part comprises an oil guide channel arranged in the axial direction of the conductive main body part in a penetrating mode; the oil guide channel can guide a medium in an external oil way into the mounting space; the driving shaft assembly and the shell are connected through the conductive assembly to form a conductive path from the driving shaft assembly to the shell. According to the conductive assembly, the driving device and the vehicle, the internal space can be reasonably utilized under the condition that equipotential connection of the driving shaft assembly and the shell is achieved, and lubrication of the driving shaft is not affected.

Description

Technical Field

[0001] The present application relates to the technical field of vehicles, and in particular to a conductive component, a driving device and a vehicle. Background Art

[0002] The two sides of the bearing of the driving device of a vehicle usually contact the driving shaft and the driving device housing. Since the driving device housing is a grounded part, a potential difference will be generated between it and the driving shaft. Therefore, a conductive part with good conductivity is often arranged between the driving device housing and the driving shaft to ground the driving shaft, eliminate the potential difference between the driving shaft and the driving device housing, so as to prevent the oil film of the bearing from being broken down by the potential difference and avoid the occurrence of electrical corrosion of the bearing.

[0003] However, currently, the conductive component arranged between the driving device housing and the driving shaft is usually an annular part arranged outside the driving shaft. In order to ensure effective contact between the conductive component and the driving shaft, the driving shaft needs to reserve a certain length for the installation of the conductive component, occupying the internal space of the driving device; or a part of the conductive component is placed inside the driving shaft and the other part is connected to the housing, but it will block the internal space of the driving shaft and lubrication inside the shaft cannot be carried out. Summary of the Invention

[0004] The conductive component, driving device and vehicle provided by the present application can rationally utilize the internal space while realizing the equipotential connection between the driving shaft and the housing, and will not affect the lubrication of the driving shaft.

[0005] The present application provides a conductive component, which is used in the installation space inside the driving shaft assembly. The conductive component includes a conductive connection part and a conductive main body part connected to each other. The conductive main body part includes an oil guiding channel penetrating in its own axial direction, and the oil guiding channel can introduce the medium in the external oil circuit into the installation space; the driving shaft assembly and the housing are connected through the conductive component to form a conductive path from the driving shaft assembly to the housing.

[0006] For the above conductive component, the conductive main body part includes an insertion section, a connection section and an extension section distributed along the axial direction. The conductive connection part is arranged around the outer peripheral side of the connection section, and the conductive main body part is inserted into the housing through the insertion section.

[0007] For the above conductive component, the conductive component further includes an oil draining part, which protrudes from the outer peripheral surface of the conductive main body part. The oil draining part has an oil draining channel penetrating in the axial direction, and the installation space is communicated with the oil drain port inside the housing through the oil draining channel.

[0008] The conductive component as described above, wherein the oil drain part is in a ring structure, surrounding and connecting to the outer peripheral surface of the connecting section, and is arranged between the conductive main body part and the conductive connecting part; or, the oil drain part surrounds and connects to the outer peripheral surface of the extending section, and is axially spaced from the conductive connecting part.

[0009] The conductive component as described above, wherein the oil drain part has a plurality of oil drain channels, and the plurality of oil drain channels are arranged on the oil drain part at intervals along the circumferential direction of the oil drain part.

[0010] The conductive component as described above, wherein the conductive connecting part is in an overall ring structure, the conductive connecting part surrounds and connects to the outer peripheral surface of the oil drain part, and the outer peripheral surface of the conductive connecting part is in contact with the inner surface of the drive shaft assembly.

[0011] The conductive component as described above, wherein the conductive component includes a plurality of conductive connecting parts, the plurality of conductive connecting parts are arranged on the outer peripheral surface of the oil drain part at intervals along the circumferential direction of the oil drain part, and one end of the conductive connecting part away from the oil drain part is in contact with the inner surface of the drive shaft assembly.

[0012] On the other hand, the present application also provides a driving device, which includes the above-mentioned conductive component, the driving device further includes a drive shaft assembly and a housing. The drive shaft assembly has an installation space inside, the conductive component is arranged in the installation space, and the housing has an oil inlet channel arranged therethrough. The oil inlet channel is connected to the installation space through the oil guiding channel of the conductive component.

[0013] The driving device as described above, wherein the drive shaft assembly includes a driving shaft and a driven shaft. Along the axial direction of the drive shaft assembly, the installation space penetrates through the driven shaft, and at least part of the driving shaft is disposed in the installation space and meshed with the driven shaft.

[0014] On another aspect, the present application also provides a vehicle, which includes the above-mentioned driving device.

[0015] The conductive component of the present application is used in the installation space inside the drive shaft assembly. The drive shaft assembly and the housing are connected through the conductive component to form a conductive path from the drive shaft assembly to the housing. Without occupying the space outside the drive shaft assembly, the equipotential connection between the drive shaft assembly and the housing is completed, realizing the reasonable utilization of the space inside the driving device; moreover, the conductive component includes a conductive connecting part and a conductive main body part connected to each other. The conductive main body part includes an oil guiding channel penetrating through itself in the axial direction. The oil guiding channel can introduce the medium in the external oil circuit into the installation space, thereby realizing the injection of lubricating oil in the external oil circuit and realizing the lubrication inside the drive shaft assembly. Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the internal structure of the driving device provided by the embodiment of the present application;

[0017] Figure 2 A cross-sectional view of the conductive component provided by the embodiment of the present application;

[0018] Figure 3 A front view of the conductive component provided by the embodiment of the present application;

[0019] Figure 4 A side view of the conductive component provided by the embodiment of the present application.

[0020] Explanation of the reference numerals in the drawings:

[0021] 10. Conductive connection part; 20. Conductive main body part; 21. Oil guide channel; 22. Insertion section; 23. Connection section; 24. Extension section; 30. Oil discharge part; 31. Oil discharge channel;

[0022] 100. Conductive component; 210. Drive shaft assembly; 211. Driving shaft; 212. Driven shaft; 220. Installation space; 230. Housing; 240. Oil inlet channel. Specific embodiments

[0023] In order to more clearly understand the above-mentioned objects, features and advantages of the present disclosure, the solutions of the present disclosure will be further described below. It should be noted that, without conflict, the embodiments of the present disclosure and the features in the embodiments may be combined with each other.

[0024] Many specific details are set forth in the following description in order to fully understand the present disclosure, but the present disclosure may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only a part of the embodiments of the present disclosure, rather than all of the embodiments.

[0025] As Figures 1 to 4 shown, the embodiment of the present application provides a conductive component, wherein, it is used in the installation space 220 inside the drive shaft assembly 210. The conductive component 100 includes a connected conductive connection part 10 and a conductive main body part 20. The conductive main body part 20 includes an axially penetrating oil guide channel 21, and the oil guide channel 21 can introduce the medium in the external oil circuit into the installation space 220; the drive shaft assembly 210 and the housing 230 are connected through the conductive component 100 to form a conductive path from the drive shaft assembly 210 to the housing 230.

[0026] In specific implementation, the conductive component 100 of the embodiment of the present application is used in the installation space 220 inside the drive shaft assembly 210. The conductive component 100 does not occupy space on the outer peripheral surface or in the axial direction of the drive shaft assembly 210 in the installed state. The drive shaft assembly 210 and the housing 230 are connected through the conductive component 100 to form a conductive path from the drive shaft assembly 210 to the housing 230, completing the equipotential connection between the drive shaft assembly 210 and the housing 230. The equipotential connection between the drive shaft assembly 210 and the housing 230 can ensure that the electric potentials of the inner peripheral surface and the outer peripheral surface of the bearing are equal, avoiding the electrocorrosion of the bearing, and without occupying the space outside the drive shaft assembly 210, realizing the reasonable utilization of the space inside the drive device. Moreover, the conductive component 100 includes a connected conductive connection portion 10 and a conductive main body portion 20. The conductive main body portion 20 includes an oil guiding channel 21 penetrating through in its own axial direction. The oil guiding channel 21 can introduce the medium in the external oil circuit into the installation space 220, thereby realizing the injection of lubricating oil in the external oil circuit and realizing the lubrication inside the drive shaft assembly 210.

[0027] It should be noted that the drive shaft assembly 210 includes a driving shaft 211 and a driven shaft 212. The driving shaft 211 is the output shaft of the driving motor, and the driven shaft 212 is the input shaft in the reducer. The housing 230 is the outer shell of the reducer and has a grounding function. The driving shaft 211 and the driven shaft 212 are meshed and connected, and the transmission between the two requires lubricating oil for lubrication to ensure the reliability and stability of the transmission. When the conductive component 100 is arranged in the installation space 220 inside the drive shaft assembly 210, it will block the injection of lubricating oil. Therefore, an oil guiding channel 21 is arranged in the axial direction of the conductive main body portion 20, which can enable the lubricating oil in the external oil circuit to pass through the oil guiding channel 21, enter the installation space 220, and flow between the driving shaft 211 and the driven shaft 212 to lubricate the transmission between the two.

[0028] As Figure 2 and Figure 3 shown, for the conductive component of the embodiment of the present application, the conductive main body portion 20 includes an inserted section 22, a connecting section 23, and an extending section 24 distributed along the axial direction. The conductive connection portion 10 is disposed around the outer peripheral side of the connecting section 23. The conductive main body portion 20 is inserted into the housing 230 through the inserted section 22.

[0029] In specific implementation, through the insertion fit between the insertion section 22 of the conductive main body 20 and the housing 230, the conductive component 100 can be stably arranged inside the installation space 220, so that during the rotation of the drive shaft assembly 210, the conductive component 100 will not rotate with the drive shaft assembly 210, avoiding affecting the rotation of the drive shaft assembly 210; the connection section 23 is used to connect the conductive connection part 10 and the insertion section 22. Since the conductive connection part 10 is electrically connected to the drive shaft assembly 210 and the insertion section 22 is electrically connected through the insertion fit with the housing 230, an electrical conduction path can be formed between the drive shaft assembly 210 and the housing 230 through the conductive connection part 10, the connection section 23 and the insertion section 22.

[0030] Specifically, the insertion section 22 and the housing 230 are inserted by means of interference fit. The interference fit connection method can improve the connection stability between the insertion section 22 and the housing 230, further avoiding the situation that the conductive component 100 rotates with the drive shaft assembly 210.

[0031] Specifically, the extension section 24 is arranged on the side of the connection section 23 away from the insertion section 22 and extends in the direction away from the insertion section 22. The oil guide channel 21 axially penetrates through the insertion section 22, the connection section 23 and the extension section 24 in sequence. The lubricating oil can be discharged through the end outlet of the extension section 24 to the connection part of the driving shaft 211 and the driven shaft 212 for lubrication. The extended setting of the extension section 24 enables the outlet of the oil guide channel 21 to be closer to the meshing connection part of the driving shaft 211 and the driven shaft 212, avoiding the situation that the lubricating oil cannot reach the connection part and the lubrication effect cannot be achieved.

[0032] As Figures 2 to 4 shown, for the conductive component of the embodiment of the present application, the conductive component 100 further includes an oil drain part 30. The oil drain part 30 protrudes from the outer peripheral surface of the conductive main body 20, and the oil drain part 30 has an oil drain channel 31 axially penetrating through it. The installation space 220 is communicated with the oil drain port inside the housing 230 through the oil drain channel 31.

[0033] In specific implementation, the lubricating oil enters the installation space 220 through the oil guide channel 21 for lubricating the drive shaft assembly 210. After lubricating the drive shaft assembly 210, it can be discharged to the oil drain port inside the housing 230 through the oil drain channel 31 of the oil drain part 30 and discharged from the oil drain port of the driving device. The setting of the oil drain part 30 and the oil drain channel 31 enables the lubricating oil accumulated in the installation space 220 to be discharged smoothly, avoiding the situation that the continuous accumulation of lubricating oil affects the rotation of the drive shaft assembly 210.

[0034] As Figures 2 to 4As shown, in the conductive component of the embodiment of the present application, the oil drain portion 30 is an annular structure, surrounding and connected to the outer peripheral surface of the connecting section 23 , and disposed between the conductive main body portion 20 and the conductive connecting portion 10 .

[0035] In a specific implementation, the annular oil drain portion 30 is arranged between the conductive main body portion 20 and the conductive connecting portion 10, ensuring that the lubricating oil can be discharged from the driving device through the oil drain channel 31, and the conductive main body portion 20 and the conductive connecting portion 10 can be electrically connected through the oil drain portion 30, so that a conductive path can be formed between the drive shaft assembly 210 and the housing 230 through the conductive connecting portion 10, the oil drain portion 30 and the conductive main body portion 20.

[0036] Optionally, the oil drain portion 30 surrounds and is connected to the outer circumference of the extension section 24, and is spaced apart from the conductive connection portion 10 in the axial direction. The spaced apart arrangement of the oil drain portion 30 and the conductive connection portion 10 enables the conductive connection portion 10 to be directly connected to the outer circumference of the conductive body portion 20, thereby ensuring the conductive effect and enabling the drive shaft assembly 210 to be fully grounded.

[0037] like Figure 4 As shown, in the conductive component of the embodiment of the present application, the oil drain portion 30 has a plurality of oil drain channels 31 , and the plurality of oil drain channels 31 are arranged in the oil drain portion 30 at intervals along the circumference of the oil drain portion 30 .

[0038] In specific implementation, the provision of multiple oil drain channels 31 can ensure that the lubricating oil in the installation space 220 can be fully discharged, thereby avoiding the situation where the lubricating oil accumulates in the installation space 220 due to insufficient flow in the oil drain channel 31; the provision of multiple oil drain channels 31 arranged in the oil drain portion 30 at intervals along the circumference of the oil drain portion 30 can enable the lubricating oil in various places in the installation space 220 to be discharged from the oil drain channels 31 at corresponding positions, thereby ensuring the timely discharge of the lubricating oil.

[0039] like Figure 4 As shown, the conductive component of the embodiment of the present application, wherein the conductive component 100 includes a plurality of conductive connecting parts 10, and the plurality of conductive connecting parts 10 are arranged on the outer peripheral surface of the oil drain part 30 at intervals along the circumference of the oil drain part 30, and one end of the conductive connecting part 10 away from the oil drain part 30 is in contact with the inner surface of the drive shaft assembly 210.

[0040] In a specific implementation, the plurality of conductive connection parts 10 are arranged at intervals so that there are gaps between adjacent conductive connection parts 10 , and lubricating oil can pass through the gaps, thereby preventing the lubricating oil from accumulating in the installation space 220 .

[0041] Optionally, a plurality of conductive connection parts 10 can be directly connected to the outer peripheral surface of the connection section 23 and are arranged at intervals along the axial direction from the oil drain part 30. The lubricating oil can sequentially pass through the gaps between the plurality of conductive connection parts 10 and the oil drain channel 31 of the oil drain part 30 and enter the oil drain port for oil drainage. The direct connection between the conductive connection part 10 and the connection section 23 can not only ensure the conductive effect between the conductive connection part 10 and the conductive main body part 20, but also ensure the smooth drainage of the lubricating oil.

[0042] For the conductive component of another embodiment of the present application, the conductive connection part 10 is integrally in a ring structure. The conductive connection part 10 surrounds and is connected to the outer peripheral surface of the oil drain part 30, and the outer peripheral surface of the conductive connection part 10 is in contact with the inner surface of the drive shaft assembly 210.

[0043] During specific implementation, the outer peripheral surface of the ring-shaped conductive connection part 10 is integrally in contact with the inner surface of the drive shaft assembly 210, ensuring the contact area between the conductive connection part 10 and the drive shaft assembly 210, so as to form a sufficient electrical connection between the conductive connection part 10 and the drive shaft assembly 210 and ensure the equipotential connection between the drive shaft assembly 210 and the housing 230.

[0044] On the other hand, the embodiment of the present application also provides a driving device, which includes the above-mentioned conductive component. The driving device further includes a drive shaft assembly 210 and a housing 230. An installation space 220 is provided inside the drive shaft assembly 210. The conductive component 100 is arranged in the installation space 220. An oil inlet channel 240 is provided through the housing 230. The oil inlet channel 240 is connected to the installation space 220 through the oil guiding channel 21 of the conductive component 100.

[0045] Specifically, the insertion section 22 is inserted into the oil inlet channel 240 of the housing 230 and is connected to the oil inlet channel 240 in an interference fit manner, ensuring the connection stability. The lubricating oil in the oil inlet channel 240 can directly enter the part of the oil guiding channel 21 inside the insertion section 22 and finally enter the installation space 220 for lubrication.

[0046] For the driving device of the embodiment of the present application, the drive shaft assembly 210 includes a driving shaft 211 and a driven shaft 212. Along the axial direction of the drive shaft assembly 210, the installation space 220 penetrates through the driven shaft 212, and at least part of the driving shaft 211 is inserted into the installation space 220 and meshed with the driven shaft 212.

[0047] In specific implementation, the conductive component 100 is placed in the installation space 220 inside the drive shaft component 210, which is equivalent to sealing one end of the installation space 220. Since the conductive main body 20 of the conductive component 100 has an oil guiding channel 21, external lubricating oil can be introduced into the installation space 220, and the meshing part of the driving shaft 211 and the driven shaft 212 can be lubricated, so that the transmission between the driving shaft 211 and the driven shaft 212 can be kept smooth and stable.

[0048] On the other hand, an embodiment of the present application also provides a vehicle, wherein the vehicle includes the above-mentioned driving device.

[0049] In specific implementation, the vehicle of the embodiment of the present application includes a driving device, and the driving device includes a conductive component. The conductive component 100 is placed in the installation space 220 inside the drive shaft component 210 for use. The drive shaft component 210 and the housing 230 are connected through the conductive component 100 to form a conductive path from the drive shaft component 210 to the housing 230. Without occupying the space outside the drive shaft component 210, the equipotential connection between the drive shaft component 210 and the housing 230 is completed, realizing the reasonable utilization of the space inside the driving device. Moreover, the conductive component 100 includes a conductive connection part 10 and a conductive main body part 20 connected to each other. The conductive main body part 20 includes an oil guiding channel 21 penetrating through in its own axial direction. The oil guiding channel 21 can introduce the medium in the external oil circuit into the installation space 220, thereby realizing the injection of lubricating oil in the external oil circuit and realizing the lubrication inside the drive shaft component 210.

[0050] It should be noted that in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the existence of additional identical elements in the process, method, article or device including the element.

Claims

1. A conductive component, characterized in that, it is used inside the installation space (220) of the drive shaft assembly (210). The conductive component (100) includes a conductive connection part (10) and a conductive main body part (20) which are connected to each other. The conductive main body part (20) includes an oil guiding channel (21) that penetrates axially through itself, and the oil guiding channel (21) can introduce the medium in the external oil circuit into the installation space (220); The drive shaft assembly (210) and the housing (230) are connected through the conductive component (100) to form a conductive path from the drive shaft assembly (210) to the housing (230).

2. The conductive component according to claim 1, characterized in that, the conductive main body part (20) includes a plugging section (22), a connecting section (23) and an extending section (24) distributed along the axial direction. The conductive connection part (10) is disposed around the outer peripheral side of the connecting section (23), and the conductive main body part (20) is plugged into the housing (230) through the plugging section (22).

3. The conductive component according to claim 2, characterized in that, the conductive component (100) further includes an oil discharging part (30). The oil discharging part (30) protrudes from the outer peripheral surface of the conductive main body part (20). The oil discharging part (30) has an oil discharging channel (31) that penetrates axially through itself, and the installation space (220) is communicated with the oil discharge port inside the housing (230) through the oil discharging channel (31).

4. The conductive component according to claim 3, characterized in that, the oil discharging part (30) is in a ring structure, surrounds and is connected to the outer peripheral surface of the connecting section (23), and is disposed between the conductive main body part (20) and the conductive connection part (10); or, the oil discharging part (30) surrounds and is connected to the outer peripheral surface of the extending section (24), and is axially spaced from the conductive connection part (10).

5. The conductive component according to claim 4, characterized in that, the oil discharging part (30) has a plurality of oil discharging channels (31), and the plurality of oil discharging channels (31) are arranged at intervals along the circumferential direction of the oil discharging part (30).

6. The conductive component according to claim 4, characterized in that, the conductive connection part (10) is in an overall ring structure, surrounds and is connected to the outer peripheral surface of the oil discharging part (30), and the outer peripheral surface of the conductive connection part (10) is in contact with the inner surface of the drive shaft assembly (210).

7. The conductive component according to claim 4, characterized in that, the conductive component (100) includes a plurality of conductive connection parts (10), and the plurality of conductive connection parts (10) are arranged at intervals along the circumferential direction of the oil discharging part (30) on the outer peripheral surface of the oil discharging part (30), and the end of the conductive connection part (10) away from the oil discharging part (30) is in contact with the inner surface of the drive shaft assembly (210).

8. A driving device, characterized in that, The driving device further includes a drive shaft assembly (210) and a housing (230), wherein the driving device includes the conductive component according to any one of claims 1 to 7. An installation space (220) is provided inside the drive shaft assembly (210), and the conductive component (100) is disposed in the installation space (220). An oil inlet passage (240) is provided through the housing (230), and the oil inlet passage (240) is communicated with the installation space (220) through an oil guiding passage (21) of the conductive component (100).

9. The driving device according to claim 8, wherein, the drive shaft assembly (210) includes a driving shaft (211) and a driven shaft (212). Along the axial direction of the drive shaft assembly (210), the installation space (220) penetrates through the driven shaft (212), and at least a part of the driving shaft (211) is disposed in the installation space (220) and meshed with the driven shaft (212).

10. A vehicle, wherein, the vehicle includes the driving device according to claim 9.

Images