Vehicle-mounted power supply assembly mounting structure, electric driving system and vehicle

Abstract

The utility model provides a vehicle-mounted power supply assembly mounting structure, an electric driving system and a vehicle, and relates to the technical field of vehicles, the vehicle-mounted power supply assembly mounting structure comprises an electric control shell provided with a containing groove, a vehicle-mounted power supply assembly contained in the containing groove, a first sealing piece and a second sealing piece; the groove bottom wall of the containing groove is provided with a liquid inlet hole, a liquid outlet hole and a guide boss, the guide boss is provided with a positioning hole, the vehicle-mounted power source assembly is provided with a liquid inlet connector, a liquid outlet connector and a positioning column, the liquid inlet connector and the liquid outlet connector are sleeved with the first sealing piece and the second sealing piece respectively, and the positioning column is inserted into the positioning hole; the liquid inlet interface and the liquid outlet interface are respectively inserted into the liquid inlet hole and the liquid outlet hole; in the inserting direction of the positioning column inserted into the positioning hole, when the end face of the positioning column is flush with the end face of the guide boss, the liquid inlet connector and the liquid outlet connector are located outside the liquid inlet hole and the liquid outlet hole respectively. In this way, the assembling efficiency and the sealing effect of the OD assembly can be improved.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, and more specifically, to an on-board power supply assembly mounting structure, an electric drive system, and a vehicle. Background Technology

[0002] In the electric drive system of new energy vehicles, the three main components—on-board charger (OBC), DC-DC converter (DCDC), and power distribution unit (PDU)—are typically integrated into a single structure, meaning they are mounted on the same electronic control housing. Furthermore, coolant inlets and outlets are provided on the on-board power assembly (OD assembly) comprised of the OBC and DCDC to allow coolant to enter and cool the OD assembly. Sealing rings are also installed at the OD assembly's inlets and outlets to reduce the risk of oil or fluid leaks.

[0003] However, during the integration and assembly process, if the installation position of the OD assembly is deviated or inaccurate, it will cause scratches or cut edges on the sealing rings at the inlet and outlet of the OD assembly, resulting in poor sealing performance. In order to ensure the accuracy of OD assembly installation, related technologies use additional guide tooling for auxiliary assembly, which leads to complex assembly processes and low production efficiency. Utility Model Content

[0004] The problem this invention addresses is: how to improve the assembly efficiency and sealing effect of the OD assembly in an electric drive system.

[0005] To address the aforementioned problems, this utility model provides an on-board power supply assembly mounting structure, an electric drive system, and a vehicle.

[0006] In a first aspect, this utility model provides a vehicle power supply assembly mounting structure, including an electronic control housing, a vehicle power supply assembly, a first sealing element, and a second sealing element. The electronic control housing is provided with a receiving groove, and the vehicle power supply assembly is housed in the receiving groove. The bottom wall of the receiving groove is provided with an inlet hole, an outlet hole, and a guide boss. The guide boss is provided with a positioning hole. The vehicle power supply assembly is provided with an inlet interface, an outlet interface, and a positioning post. The positioning post is inserted into the positioning hole. The inlet interface and the outlet interface are respectively inserted into the inlet hole and the outlet hole. The first sealing element and the second sealing element are respectively sleeved on the inlet interface and the outlet interface, and respectively abut against and seal against the hole walls of the inlet hole and the outlet hole.

[0007] In the insertion direction of the positioning pin into the positioning hole, when the end face of the positioning pin is flush with the end face of the guide boss, the liquid inlet is located outside the liquid inlet hole, and the liquid outlet is located outside the liquid outlet hole.

[0008] Optionally, one end of the positioning post inserted into the positioning hole is provided with a first guide cone surface, and the small end of the first guide cone surface is connected to the end face of the positioning post;

[0009] And / or, the hole wall of the positioning hole facing the vehicle power assembly is provided with a second guide cone surface, and the large end of the second guide cone surface faces the vehicle power assembly.

[0010] Optionally, when the end face of the positioning post is flush with the end face of the guide boss, the distance between the liquid inlet and the liquid inlet hole in the insertion direction is greater than the dimension of the first guide cone surface in the insertion direction, and the distance between the liquid outlet and the liquid outlet hole in the insertion direction is greater than the dimension of the first guide cone surface in the insertion direction.

[0011] Optionally, the liquid inlet, the liquid outlet, and the positioning post are located on the end face of the vehicle power assembly facing the bottom wall of the receiving tank.

[0012] Optionally, the wall of the inlet hole facing the vehicle power assembly is provided with a third guide cone surface, and the larger end of the third guide cone surface is disposed facing the vehicle power assembly;

[0013] And / or, the wall of the outlet hole facing the vehicle power assembly is provided with a fourth guide cone surface, and the larger end of the fourth guide cone surface is positioned facing the vehicle power assembly.

[0014] Optionally, the vehicle power supply assembly is further provided with a support column parallel to the positioning column, and the bottom wall of the receiving groove is further provided with a support hole, and the support column is inserted into the support hole.

[0015] Optionally, there are two positioning columns and one support column, the two positioning columns and one support column are arranged in a triangle, and the liquid inlet and the liquid outlet are located in the area enclosed by the two positioning columns and the support column.

[0016] Optionally, the bottom wall of the receiving groove is further provided with a plurality of mounting posts, each of the mounting posts being provided with a threaded hole, and mounting holes being provided at opposite ends of the vehicle power assembly. The number of mounting holes is the same as that of the mounting posts and they are set one-to-one, and the mounting holes are coaxially arranged with the corresponding threaded holes.

[0017] Secondly, this utility model provides an electric drive system, including the vehicle power supply assembly mounting structure as described above.

[0018] Secondly, this utility model provides a vehicle, including the on-board power supply assembly mounting structure as described above or the electric drive system as described above.

[0019] The beneficial effects of the vehicle power supply assembly mounting structure of this utility model are as follows: A receiving groove is provided on the electronic control housing to provide an installation position for the vehicle power supply assembly. Simultaneously, by providing an inlet and outlet interface on the vehicle power supply assembly, and an inlet hole and an outlet hole on the bottom wall of the receiving groove, the inlet interface is inserted into the inlet hole, and the outlet interface is inserted into the outlet hole. This allows coolant to be introduced into the vehicle power supply assembly from the inlet hole for cooling and to flow out from the outlet hole, thus achieving cyclic cooling of the vehicle power supply assembly. Furthermore, by fitting a first sealing element on the inlet interface and a second sealing element on the outlet interface, the inlet interface can be sealed to the inlet hole using the first sealing element, and the outlet interface can be sealed to the outlet hole using the second sealing element, preventing leakage. Furthermore, by setting positioning posts on the vehicle power assembly, providing guide bosses on the bottom wall of the receiving groove, and providing positioning holes on the guide bosses for the positioning posts to pass through, the vehicle power assembly can be pre-positioned for installation by the insertion and mating of the positioning posts and positioning holes. This ensures accurate installation of the vehicle power assembly without adding guide fixtures, thereby reducing assembly difficulty and improving production efficiency. Simultaneously, by setting the liquid inlet and outlet ports so that when the end face of the positioning post is flush with the end face of the guide boss, the liquid inlet port is located outside the liquid inlet hole, and the liquid outlet port is located outside the liquid outlet hole, the positioning post can be inserted into the positioning hole first, and the liquid inlet and outlet ports can be inserted into the liquid inlet and outlet holes respectively. This ensures that the inlet port with the first seal and the outlet port with the second seal can be accurately inserted into the inlet and outlet ports respectively in the vertical direction, for example, avoiding scratches or cut edges on the first and second seals due to inaccurate installation positions of the vehicle power assembly, thereby improving the sealing effect at the inlet and outlet ports of the vehicle power assembly. Attached Figure Description

[0020] Figure 1 This is a top view of the vehicle power supply assembly mounting structure in an embodiment of the present utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the electrical control housing in an embodiment of this utility model;

[0022] Figure 3 This is a schematic diagram of the vehicle power supply assembly in an embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the assembly structure of the electronic control housing and the vehicle power supply assembly in this embodiment of the present invention, when the end face of the positioning post is flush with the end face of the guide boss.

[0024] Figure 5 This is a partial cross-sectional view of the mounting structure of the vehicle power supply assembly in this embodiment of the present invention at the insertion and mating point of the positioning post and positioning hole;

[0025] Figure 6 This is a partial cross-sectional view of the vehicle power supply assembly mounting structure in this embodiment of the present invention, showing the liquid inlet and liquid outlet interfaces being inserted into the liquid inlet and liquid outlet holes, respectively.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Electrical control housing; 11. Receiving groove; 12. Liquid inlet; 121. Third guide cone surface; 13. Liquid outlet; 131. Fourth guide cone surface; 14. Guide boss; 15. Positioning hole; 16. Support hole; 17. Second guide cone surface; 18. Mounting post; 19. Welded cover plate; 2. Vehicle power supply assembly; 21. Liquid inlet interface; 22. Liquid outlet interface; 23. Positioning post; 231. First guide cone surface; 24. Support post; 25. Mounting hole; 3. First seal; 4. Second seal. Detailed Implementation

[0028] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Although some embodiments of this utility model are shown in the drawings, it should be understood that this utility model can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this utility model. It should be understood that the drawings and embodiments of this utility model are for illustrative purposes only and are not intended to limit the scope of protection of this utility model.

[0029] In the attached diagram, the Z-axis represents the vertical direction, i.e., up and down, with the positive direction of the Z-axis representing up and the negative direction representing down. The X-axis represents the horizontal direction and is designated as the front and back position, with the positive direction of the X-axis representing the front and the negative direction representing the back. The Y-axis represents the left and right position, with the positive direction of the Y-axis representing the left and the negative direction representing the right. It should be noted that the aforementioned representations of the Z, Y, and X axes are merely for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to"; the term "based on" means "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; and the term "optionally" means "optional embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first," "second," etc., mentioned in this utility model are only used to distinguish different devices, modules, or units, and are not used to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0031] It should be noted that the terms "one" and "multiple" used in this utility model are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0032] In related technologies, the three main components of an electric drive system—the on-board charger (OBC), the DC-DC converter (DCDC), and the power distribution unit (PDU)—are typically integrated into a single structure, meaning they are mounted on the same electronic control housing. Furthermore, coolant inlets and outlets are provided on the on-board power assembly (OD assembly) comprised of the OBC and DCDC to allow coolant to enter and cool the OD assembly. Sealing rings are also installed at the OD assembly's inlets and outlets to reduce the risk of oil or fluid leaks. However, during the integration and assembly process, if the OD assembly's installation position is misaligned or inaccurate, scratches or cut edges may occur on the sealing rings at the OD assembly's inlets and outlets, resulting in poor sealing performance. To ensure accurate installation of the OD assembly, related technologies often use guide fixtures for auxiliary assembly, leading to complex assembly processes and low production efficiency.

[0033] To address the problems existing in the aforementioned related technologies, this utility model provides an on-board power supply assembly mounting structure, an electric drive system, and a vehicle.

[0034] Combination Figures 1 to 4As shown in the figure, the vehicle power assembly installation structure provided by this utility model includes an electronic control housing 1, a vehicle power assembly 2, a first sealing member 3 and a second sealing member 4. The electronic control housing 1 is provided with a receiving groove 11, and the vehicle power assembly 2 is housed in the receiving groove 11. The bottom wall of the receiving groove 11 is provided with a liquid inlet hole 12, a liquid outlet hole 13 and a guide boss 14. The guide boss 14 is provided with a positioning hole 15. The vehicle power assembly 2 is provided with a liquid inlet interface 21, a liquid outlet interface 22 and a positioning post 23. The positioning post 23 is inserted into the positioning hole 15. The liquid inlet interface 21 and the liquid outlet interface 22 are respectively inserted into the liquid inlet hole 12 and the liquid outlet hole 13. The first sealing member 3 and the second sealing member 4 are respectively sleeved on the outside of the liquid inlet interface 21 and the liquid outlet interface 22, and respectively abut against the hole wall of the liquid inlet hole 12 and the liquid outlet hole 13 for sealing.

[0035] In the insertion direction of the positioning pin 23 into the positioning hole 15, when the end face of the positioning pin 23 is flush with the end face of the guide boss 14, the liquid inlet 21 is located outside the liquid inlet 12, and the liquid outlet 22 is located outside the liquid outlet 13.

[0036] It should be noted that the positioning pin 23 is inserted into the positioning hole 15 from top to bottom, that is, the positioning pin 23 is inserted downwards into the positioning hole 15. Therefore, the insertion direction of the positioning pin 23 is... Figure 4 The Z-axis is reversed.

[0037] Specifically, the electronic control housing 1 may be provided with multiple receiving cavities for installing electrical units such as a high-voltage distribution box and an on-board power assembly 2, respectively, to achieve an integrated design. The receiving cavity for installing the on-board power assembly 2 has its slot facing upwards (i.e., towards...). Figure 4 The receiving groove 11 (located in the positive Z-axis direction) allows the vehicle power assembly 2 to be installed into the receiving groove 11 from top to bottom. The vehicle power assembly 2 is provided with a liquid inlet 21 and a liquid outlet 22, which can be located along the vertical direction (i.e.,...). Figure 3The hollow columnar structure extends along the Z-axis. The bottom wall of the receiving tank 11 is provided with an inlet hole 12 and an outlet hole 13. The inlet hole 12 and the outlet hole 13 can be set on the welded cover plate 19 inside the receiving tank 11. The welded cover plate 19 and the bottom wall of the receiving tank 11 form a cooling channel. The inlet port 21 is inserted into the inlet hole 12 and the outlet port 22 is inserted into the outlet hole 13. The inlet port 21 and the outlet port 22 are respectively connected to the cooling channel on the electronic control housing 1 through the inlet hole 12 and the outlet hole 13 to introduce coolant into the vehicle power assembly 2 for cooling. The inlet port 21 is fitted with a first sealing element 3 and the outlet port 22 is fitted with a second sealing element 4. The inlet port 21 is sealed to the inlet hole 12 through the first sealing element 3 and the outlet port 22 is sealed to the outlet hole 13 through the second sealing element 4. Meanwhile, the vehicle power supply assembly 2 is also equipped with a positioning post 23. The positioning post 23 can be a columnar structure extending in the vertical direction. It not only serves a positioning function, but can also pass through the positioning hole 15 and abut against other structures to support the vehicle power supply assembly 2. The bottom wall of the receiving groove 11 is also equipped with a guide boss 14. The guide boss 14 has a positioning hole 15, which can penetrate the guide boss 14 and the bottom wall of the receiving groove 11 in the vertical direction. The positioning post 23 is inserted downward into the positioning hole 15. There can be one positioning post 23 or multiple positioning posts 23 spaced apart. In practical applications, in order to improve the positioning accuracy, two positioning posts 23 are usually provided. Alternatively, the liquid inlet 21, the liquid outlet 22, and the positioning post 23 can all be located on the lower end face of the vehicle power assembly 2 (i.e., the end face of the vehicle power assembly 2 located in the opposite direction of the Z-axis). Alternatively, the liquid inlet 21 and the liquid outlet 22 can be located on the lower end face of the vehicle power assembly 2, while the positioning post 23 is located on the side end face of the vehicle power assembly 2 in the horizontal direction. For example, the positioning post 23 can be located on at least one of the front end face, rear end face, left end face, and rear end face of the vehicle power assembly 2. No specific limitation is made here. Furthermore, in the insertion direction of the positioning post 23 into the positioning hole 15, when the end face of the positioning post 23 is flush with the end face of the guide boss 14, the liquid inlet 21 is located outside the liquid inlet hole 12, and the liquid outlet 22 is located outside the liquid outlet hole 13. Since the upper end of the positioning post 23 is connected to the main body of the vehicle power supply assembly 2, the end face of the positioning post 23 in the vertical direction is the lower end face of the positioning post 23. Similarly, since the lower end of the guide boss 14 is connected to the bottom wall of the receiving groove 11, the upper end face of the guide boss 14 is the end face of the guide boss 14.In other words, during the process of installing the vehicle power assembly 2 downward into the receiving slot 11, when the vehicle power assembly 2 moves down until the lower end face of the positioning post 23 is flush with the upper end face of the guide boss 14, the liquid inlet 21 is located outside the liquid inlet hole 12 and the liquid outlet 22 is located outside the liquid outlet hole 13. That is, the liquid inlet 21 has not yet been inserted into the liquid inlet hole 12 and the liquid outlet 22 has not yet been inserted into the liquid outlet hole 13, so that the positioning post 23 can be inserted into the positioning hole 15 first, and the liquid inlet 21 and the liquid outlet 22 are inserted into the liquid inlet hole 12 and the liquid outlet hole 13 respectively.

[0038] In this embodiment, a receiving groove 11 is provided on the electronic control housing 1 to provide an installation position for the vehicle power assembly 2. Simultaneously, the vehicle power assembly 2 is provided with an inlet port 21 and an outlet port 22. An inlet hole 12 and an outlet hole 13 are provided on the bottom wall of the receiving groove 11. The inlet port 21 is inserted into the inlet hole 12, and the outlet port 22 is inserted into the outlet hole 13, allowing coolant to be introduced into the vehicle power assembly 2 through the inlet hole 12 for cooling and to flow out through the outlet hole 13, thus achieving cyclic cooling of the vehicle power assembly 2. Furthermore, by fitting a first sealing element 3 onto the inlet port 21 and a second sealing element 4 onto the outlet port 22, the inlet port 21 can be sealed to the inlet hole 12 using the first sealing element 3, and the outlet port 22 can be sealed to the outlet hole 13 using the second sealing element 4, preventing leakage. Furthermore, by providing a positioning post 23 on the vehicle power assembly 2, a guide boss 14 on the bottom wall of the receiving groove 11, and a positioning hole 15 on the guide boss 14 for the positioning post 23 to pass through, the vehicle power assembly 2 can be pre-positioned by the insertion and engagement of the positioning post 23 and the positioning hole 15. This ensures accurate installation of the vehicle power assembly 2 without adding guide fixtures, thereby reducing assembly difficulty and improving production efficiency. Simultaneously, by configuring the liquid inlet 21 and liquid outlet 22 so that when the end face of the positioning post 23 is flush with the end face of the guide boss 14, the liquid inlet 21 is located outside the liquid inlet hole 12, and the liquid outlet 22 is located outside the liquid outlet hole 13, the positioning post 23 can be inserted into the positioning hole 15 first, and the liquid inlet 21 and liquid outlet 22 can be inserted into the liquid inlet hole 12 and liquid outlet hole 13 respectively. In this way, it can be ensured that the liquid inlet 21 with the first seal 3 and the liquid outlet 22 with the second seal 4 can be accurately inserted into the liquid inlet 12 and the liquid outlet 13 respectively in the vertical direction, for example, avoiding scratches, cut edges, etc. on the first seal 3 and the second seal 4 due to inaccurate installation position of the vehicle power assembly 2, thereby improving the sealing effect at the liquid inlet 21 and the liquid outlet 22 of the vehicle power assembly 2.

[0039] Optionally, combined Figures 1 to 3As shown, the bottom wall of the receiving groove 11 is also provided with a plurality of mounting posts 18, each mounting post 18 is provided with a threaded hole, and the opposite ends of the vehicle power supply assembly 2 are respectively provided with mounting holes 25. The number of mounting holes 25 is the same as that of mounting posts 18 and they are set one by one, and the mounting holes 25 and the corresponding threaded holes are coaxially set.

[0040] Specifically, the vehicle power assembly 2 may have ears at its opposite ends, and each ear has a through mounting hole 25. During assembly, when the positioning pin 23 is inserted into the positioning hole 15, the multiple mounting holes 25 on the vehicle power assembly 2 are aligned with the threaded holes on the multiple mounting pins 18 in the receiving groove 11. At this point, fasteners such as bolts can be passed through the mounting holes 25 and screwed into the threaded holes on the mounting pins 18 to achieve the installation and fixation of the vehicle power assembly 2 within the electronic control housing 1. This process is simple to perform and ensures a secure connection.

[0041] Optionally, combined Figure 4 and Figure 5 As shown, the end of the positioning post 23 inserted into the positioning hole 15 is provided with a first guide cone surface 231, and the small end of the first guide cone surface 231 is connected to the end face of the positioning post 23.

[0042] In this optional embodiment, the positioning post 23 can be a cylindrical structure, and correspondingly, the positioning hole 15 is a circular hole. The positioning post 23 and the positioning hole 15 can be clearance-fitted for easy installation. The lower end of the positioning post 23 is provided with a first guide cone surface 231, and the small end of the first guide cone surface 231 is connected to the lower end face of the positioning post 23. That is, the small end of the first guide cone surface 231 faces the positioning hole 15, meaning the small end of the first guide cone surface 231 is below the large end, making the outer diameter of the insertion end of the positioning post 23 smaller than the diameter of the positioning hole 15. This increases the clearance between the insertion end of the positioning post 23 and the positioning hole 15, reducing the difficulty of inserting the positioning post 23 into the positioning hole 15 and improving installation efficiency. Furthermore, when the positioning post 23 is inserted downwards into the positioning hole 15, the first guide cone surface 231 can guide the positioning post 23, improving the convenience and accuracy of inserting the positioning post 23 into the positioning hole 15.

[0043] Optionally, combined Figure 4 and Figure 5 As shown, the positioning hole 15 has a second guide cone 17 on the wall of the end facing the vehicle power assembly 2, and the larger end of the second guide cone 17 faces the vehicle power assembly 2.

[0044] In this optional embodiment, the upper end wall of the positioning hole 15 is provided with a second guide cone surface 17, and the larger end of the second guide cone surface 17 faces the vehicle power supply assembly 2, that is, the smaller end of the second guide cone surface 17 is located below the larger end, making the upper end of the positioning hole 15 approximately flared, and the flared opening expands outward towards the positioning hole 15. This increases the gap between the insertion end of the positioning post 23 and the upper end wall of the positioning hole 15, reducing the difficulty of inserting the positioning post 23 into the positioning hole 15 and improving installation efficiency. Furthermore, when the positioning post 23 is inserted downward into the positioning hole 15, the second guide cone surface 17 can guide the positioning post 23, improving the convenience and accuracy of inserting the positioning post 23 into the positioning hole 15. Alternatively, based on the first guide cone surface 231 on the positioning post 23, a second guide cone surface 17 can be provided on the upper end wall of the positioning hole 15 to further improve the convenience and accuracy of inserting the positioning post 23 into the positioning hole 15.

[0045] Optionally, combined Figure 4 As shown, when the end face of the positioning post 23 is flush with the end face of the guide boss 14, the distance between the liquid inlet interface 21 and the liquid inlet hole 12 in the insertion direction is greater than the dimension of the first guide cone surface 231 in the insertion direction, and the distance between the liquid outlet interface 22 and the liquid outlet hole 13 in the insertion direction is greater than the dimension of the first guide cone surface 231 in the insertion direction.

[0046] In this optional embodiment, during the process of installing the vehicle power assembly 2 downward into the receiving groove 11, when the vehicle power assembly 2 moves down to the position where the end face of the positioning post 23 is flush with the end face of the guide boss 14, the liquid inlet 21 is located above and outside the liquid inlet hole 12 and has a gap between it and the liquid inlet hole 12, and the liquid outlet 22 is located above and outside the liquid outlet hole 13 and has a gap between it and the liquid outlet hole 13. Moreover, the gap between the liquid inlet 21 and the liquid inlet hole 12 is greater than the dimension of the first guide cone surface 231 in the vertical direction (i.e., the gap between the large end and the small end of the first guide cone surface 231), and the gap between the liquid outlet 22 and the liquid outlet hole 13 is also greater than the dimension of the first guide cone surface 231 in the vertical direction. In this way, when the first guide cone surface 231 of the positioning post 23 is fully inserted into the positioning hole 15, the liquid inlet 21 is still located outside the liquid inlet hole 12, and the liquid outlet 22 is still located outside the liquid outlet hole 13. This ensures that after the positioning post 23 completes its guiding function and is accurately inserted into the positioning hole 15, the liquid inlet 21 with the first sealing element 3 can be accurately inserted into the liquid inlet hole 12 in the vertical direction, and the liquid outlet 22 with the second sealing element 4 can be accurately inserted into the liquid outlet hole 13 in the vertical direction. This avoids scratches and edge damage to the first sealing element 3 and the second sealing element 4, thus improving the sealing effect.

[0047] Optionally, combined Figure 3 and Figure 4 As shown, the inlet port 21, outlet port 22, and positioning post 23 are located on the end face of the vehicle power assembly 2 facing the bottom wall of the receiving tank 11. That is, the inlet port 21, outlet port 22, and positioning post 23 are all located on the lower end face of the vehicle power assembly 2. This reduces the horizontal dimensions of the vehicle power assembly 2 and allows the positioning post 23 to better support the vehicle power assembly 2 at its lower end.

[0048] Optionally, combined Figure 6 As shown, the wall of the inlet hole 12 facing the vehicle power assembly 2 is provided with a third guide cone surface 121, and the larger end of the third guide cone surface 121 is set towards the vehicle power assembly 2.

[0049] In this optional embodiment, the upper end wall of the liquid inlet hole 12 is provided with a third guide cone surface 121, and the larger end of the third guide cone surface 121 faces the vehicle power assembly 2, that is, the smaller end of the third guide cone surface 121 is located below the larger end, so that the upper end of the liquid inlet hole 12 is roughly funnel-shaped, and the funnel-shaped opening expands outward towards the liquid inlet hole 12. In this way, on the one hand, the gap between the insertion end of the liquid inlet interface 21 and the upper end wall of the liquid inlet hole 12 can be increased, reducing the difficulty of inserting the liquid inlet interface 21 into the liquid inlet hole 12 and improving the installation efficiency; on the other hand, when the liquid inlet interface 21 is inserted downward into the liquid inlet hole 12, the third guide cone surface 121 can be used to guide the liquid inlet interface 21, thereby improving the convenience and accuracy of inserting the liquid inlet interface 21 into the liquid inlet hole 12.

[0050] Optionally, combined Figure 6 As shown, the wall of the outlet hole 13 facing the vehicle power assembly 2 is provided with a fourth guide cone surface 131, and the larger end of the fourth guide cone surface 131 is set towards the vehicle power assembly 2.

[0051] In this optional embodiment, the upper end wall of the liquid outlet 13 is provided with a fourth guide cone surface 131, and the larger end of the fourth guide cone surface 131 faces the vehicle power assembly 2, that is, the smaller end of the fourth guide cone surface 131 is located below the larger end, so that the upper end of the liquid outlet 13 is roughly funnel-shaped, and the funnel-shaped opening expands outward towards the liquid outlet 13. In this way, on the one hand, the gap between the insertion end of the liquid outlet interface 22 and the upper end wall of the liquid outlet 13 can be increased, reducing the difficulty of inserting the liquid outlet interface 22 into the liquid outlet 13 and improving the installation efficiency. On the other hand, when the liquid outlet interface 22 is inserted downward into the liquid outlet 13, the fourth guide cone surface 131 can be used to guide the liquid outlet interface 22, thereby improving the convenience and accuracy of inserting the liquid outlet interface 22 into the liquid outlet 13.

[0052] Optionally, combined Figure 2 and Figure 3 As shown, the vehicle power supply assembly 2 is also provided with a support column 24 parallel to the positioning column 23, and the bottom wall of the receiving groove 11 is also provided with a support hole 16, and the support column 24 is inserted into the support hole 16.

[0053] In this optional embodiment, the support column 24 is disposed on the lower end face of the vehicle power supply assembly 2 in the vertical direction. The support hole 16 is a through hole structure opened on the bottom wall of the receiving groove 11, and the edge of the support hole 16 is located on the bottom wall of the receiving groove 11. That is, the edge of the support hole 16 is not provided with a boss structure. Moreover, the support hole 16 can penetrate the bottom wall of the receiving groove 11 in the vertical direction. After the support column 24 passes through the support hole 16, it abuts against other structures to achieve the support function. In this way, the support column 24 and the positioning column 23 can be used together to support the vehicle power assembly 2, thereby improving the support effect. Moreover, based on the positioning column 23 and the positioning hole 15, the support column 24 and the support hole 16 are further provided so that the installation position of the vehicle power assembly 2 can be further improved by using the plug-in cooperation of the support column 24 and the support hole 16. This ensures that the liquid inlet interface 21 and the liquid outlet interface 22 can be accurately inserted into the liquid inlet hole 12 and the liquid outlet hole 13 respectively, reducing the risk of scratches, cut edges, etc. of the first seal 3 and the second seal 4 during the installation process.

[0054] Optionally, as shown in the figure, there are two positioning columns 23 and one support column 24. The two positioning columns 23 and one support column 24 are arranged in a triangle, and the liquid inlet 21 and the liquid outlet 22 are located in the area enclosed by the two positioning columns 23 and one support column 24.

[0055] In this optional embodiment, the positioning posts 23 and the support posts 24 can be collectively referred to as connecting posts. The lower end of the vehicle power supply assembly 2 has three connecting posts: two are positioning posts 23, and the other is a support post 24. The liquid inlet 21 and the liquid outlet 22 are located within the area enclosed by these three connecting posts. By arranging the two positioning posts 23 and the support post 24 in a triangular pattern, the stability of the connecting posts supporting the vehicle power supply assembly 2 can be improved while ensuring accurate positioning. Furthermore, compared to using four or more connecting posts, using three connecting posts also achieves a certain degree of economic efficiency.

[0056] In other embodiments, the vehicle power assembly 2 may have at least three connecting posts, with the inlet port 21 and outlet port 22 located within the area enclosed by these connecting posts, and any three of these connecting posts forming a triangular arrangement. For example, there may be three positioning posts 23 and zero support posts 24, with the three positioning posts 23 forming a triangular arrangement; or there may be two positioning posts 23 and two support posts 24, with one of the two positioning posts 23 forming a triangular arrangement with the two support posts 24; or there may be one positioning post 23 and three support posts 24, with one positioning post 23 forming a triangular arrangement with two of the three support posts 24. In practical applications, the design can be selected according to needs, and no specific limitation is made here.

[0057] This utility model provides an electric drive system, including the vehicle power supply assembly mounting structure described above.

[0058] The beneficial effects of the electric drive system in this embodiment are the same as those of the vehicle power supply assembly installation structure described above, and will not be repeated here.

[0059] This utility model provides a vehicle, including the on-board power supply assembly mounting structure as described above or the electric drive system as described above.

[0060] The beneficial effects of the vehicle in this embodiment are the same as those of the vehicle power supply assembly installation structure described above, and will not be repeated here.

[0061] Although the present invention has been disclosed above, its protection scope is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the protection scope of the present invention.

Claims

1. An installation structure of an in-vehicle power supply assembly, characterized by comprising: The device includes an electronic control housing (1), a vehicle power supply assembly (2), a first seal (3), and a second seal (4). The electronic control housing (1) has a receiving groove (11), and the vehicle power supply assembly (2) is housed in the receiving groove (11). The bottom wall of the receiving groove (11) has a liquid inlet hole (12), a liquid outlet hole (13), and a guide boss (14). The guide boss (14) has a positioning hole (15). The vehicle power supply assembly (2) has a liquid inlet interface (21) and a liquid outlet interface (24). Liquid inlet (22) and positioning post (23), the positioning post (23) is inserted into the positioning hole (15), the liquid inlet (21) and the liquid outlet (22) are respectively inserted into the liquid inlet hole (12) and the liquid outlet hole (13), the first sealing member (3) and the second sealing member (4) are respectively sleeved on the liquid inlet (21) and the liquid outlet (22), and respectively abut against the hole wall of the liquid inlet hole (12) and the liquid outlet hole (13) for sealing; In the insertion direction of the positioning post (23) into the positioning hole (15), when the end face of the positioning post (23) is flush with the end face of the guide boss (14), the liquid inlet (21) is located outside the liquid inlet (12), and the liquid outlet (22) is located outside the liquid outlet (13).

2. The vehicle electrical power supply assembly mounting structure according to claim 1, characterized by The positioning post (23) is inserted into the positioning hole (15) at one end and is provided with a first guide cone surface (231). The small end of the first guide cone surface (231) is connected to the end face of the positioning post (23). And / or, the positioning hole (15) has a second guide cone (17) on the hole wall at one end facing the vehicle power assembly (2), and the larger end of the second guide cone (17) faces the vehicle power assembly (2).

3. The vehicle electrical power supply assembly mounting structure according to claim 2, characterized by When the end face of the positioning post (23) is flush with the end face of the guide boss (14), the distance between the liquid inlet (21) and the liquid inlet hole (12) in the insertion direction is greater than the size of the first guide cone surface (231) in the insertion direction, and the distance between the liquid outlet (22) and the liquid outlet hole (13) in the insertion direction is greater than the size of the first guide cone surface (231) in the insertion direction.

4. The vehicle electrical power supply assembly mounting structure of claim 1, wherein The liquid inlet (21), the liquid outlet (22), and the positioning post (23) are located on the end face of the vehicle power assembly (2) facing the bottom wall of the receiving tank (11).

5. The vehicle electrical power assembly mounting structure of claim 1, wherein The inlet hole (12) has a third guide cone (121) on the end of the hole facing the vehicle power assembly (2), and the large end of the third guide cone (121) is set towards the vehicle power assembly (2); And / or, the wall of the outlet hole (13) facing the vehicle power assembly (2) is provided with a fourth guide cone surface (131), and the larger end of the fourth guide cone surface (131) is positioned facing the vehicle power assembly (2).

6. The vehicle electrical power supply assembly mounting structure of claim 1, wherein The vehicle power supply assembly (2) is also provided with a support column (24) parallel to the positioning column (23), and the bottom wall of the receiving groove (11) is also provided with a support hole (16), and the support column (24) is inserted into the support hole (16).

7. The vehicle electrical power supply assembly mounting structure according to claim 6, wherein There are two positioning columns (23) and one support column (24). The two positioning columns (23) and one support column (24) are arranged in a triangle. The liquid inlet (21) and the liquid outlet (22) are located in the area enclosed by the two positioning columns (23) and the support column (24).

8. The vehicle electrical power supply assembly mounting structure of claim 1, wherein The bottom wall of the receiving groove (11) is also provided with a plurality of mounting posts (18), each of the mounting posts (18) is provided with a threaded hole, and the vehicle power assembly (2) is provided with mounting holes (25) at opposite ends respectively. The number of mounting holes (25) is the same as that of the mounting posts (18) and they are set one to one, and the mounting holes (25) are coaxially arranged with the corresponding threaded holes.

9. An electric drive system, characterized by Includes the vehicle power supply assembly mounting structure as described in any one of claims 1-8.

10. A vehicle characterized by comprising: It includes the vehicle power supply assembly mounting structure as described in any one of claims 1-8 or the electric drive system as described in claim 9.

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