Driving system for vehicle and vehicle

Abstract

The invention provides a driving system for a vehicle and the vehicle, and the driving system comprises a first shell provided with a first cooling channel; the first cooling channel connecting structure and the first shell are integrally formed, the first cooling channel connecting structure communicates with the first cooling channel, and the first cooling channel connecting structure comprises a first connector opened in the first direction and a second connector opened in the second direction different from the first direction; one of the first interface and the second interface can be selectively closed.

Description

Technical Field

[0001] The present disclosure relates to a drive system for a vehicle and the vehicle. Background Art

[0002] With the gradual development of vehicles, the space inside the vehicle is becoming more and more compact. As an important power system of the vehicle, the electric drive system has higher and higher requirements for lightweight, miniaturization, integration, multi-function and cost reduction. The electric drive system mainly includes motors, motor controller components, gearbox components, etc., among which the motor controller component provides power conversion and battery charging and discharging functions.

[0003] In known solutions, the motor controller components are usually integrated together to form an all-in-one product, so as to achieve the requirements of integration and multi-function. In these solutions, the connection between the cooling channels of different products is usually achieved in the form of external pipes, that is, hoses. The use of hoses does not have many restrictions on the import and export structure of the cooling channels of the products and is convenient for layout, and is currently a commonly used connection method. However, this connection method will result in higher system costs and lower integration, and there are problems of hose corrosion and aging due to the vehicle environment, which further increases the cost. In other solutions, the cooling channel is integrated into the product housing. Although this method has a high degree of integration and reduces external connection structures, it has a high demand for internal space, resulting in a larger size of the entire system.

[0004] Therefore, there is a need in the art for a driving system that can solve the above problems. Summary of the invention

[0005] Therefore, the purpose of the present disclosure is to provide a drive system for a vehicle and a vehicle, wherein the drive system achieves connectivity in different directions through a cooling channel connection structure integrally formed with the housing, avoiding the use of hose connections, and thus has high flexibility, long life, and low cost.

[0006] The above-mentioned object is achieved by a drive system for a vehicle and a vehicle as described below.

[0007] The present disclosure provides a driving system for a vehicle, the driving system comprising:

[0008] A first housing is provided with a first cooling channel; and

[0009] A first cooling channel connecting structure is integrally formed with the first housing and communicates with the first cooling channel.

[0010] The first cooling channel connection structure includes a first interface opened toward a first direction and a second interface opened toward a second direction different from the first direction, and one of the first interface and the second interface can be selectively closed.

[0011] In one embodiment, the drive system further comprises:

[0012] A second housing is provided with a second cooling channel; and

[0013] A second cooling channel connection structure is integrally formed with the second housing and communicates with the second cooling channel.

[0014] The second cooling channel connection structure is sealingly engaged with the first interface of the first cooling channel connection structure, and the second interface of the first cooling channel connection structure is closed.

[0015] In one embodiment, the drive system further comprises a transition component engaged with the second interface of the first cooling channel connection structure, and the first interface of the first cooling channel connection structure is closed.

[0016] In one embodiment, the drive system further comprises:

[0017] A third housing is provided with a third cooling channel;

[0018] A third cooling channel connection structure, integrally formed with the third housing and connected to the third cooling channel; and

[0019] A first additional cooling channel connection structure is integrally formed with the first housing and communicates with the first cooling channel,

[0020] The first additional cooling channel connection structure includes a third interface opened toward a third direction and a fourth interface opened toward a fourth direction different from the third direction, and

[0021] The third cooling channel connection structure is sealingly engaged with the third interface, and the fourth interface is closed.

[0022] In one embodiment, a first sealing ring is provided between the first cooling channel connection structure and the second cooling channel connection structure; and / or a second sealing ring is provided between the first additional cooling channel connection structure and the third cooling channel connection structure.

[0023] In one embodiment, the first cooling channel connection structure and the first additional cooling channel connection structure have the form of recesses, and the second cooling channel connection structure and the third cooling channel connection structure have the form of protruding tabs that can be inserted into and matched with the recesses.

[0024] In one embodiment, the first sealing ring and the second sealing ring are respectively elastically deformably sandwiched between the outer wall of the corresponding protruding joint and the inner wall of the corresponding recess.

[0025] In one embodiment, an annular groove for mounting a corresponding sealing ring is provided on the outer wall of the raised joint.

[0026] In one embodiment, one end of the adapter component is connected to the second interface of the first cooling channel connection structure, and the other end is connected to other cooling equipment of the vehicle.

[0027] In one embodiment, at least one of the first cooling channel connection structure, the second cooling channel connection structure, the first additional cooling channel connection structure, and the third cooling channel connection structure is disposed on an outer side of a corresponding housing.

[0028] In one embodiment, the first shell includes a motor controller, the second shell includes a voltage converter, a vehicle charger and a power distributor, and the third shell includes a motor and a reduction gearbox.

[0029] In one embodiment, a second cooling channel outlet is disposed on the second shell, a third cooling channel inlet is disposed on the third shell, and the second cooling channel outlet is connected to the third cooling channel inlet via an additional pipeline.

[0030] In one embodiment, the first cooling channel is disposed on the bottom wall of the first housing and corresponds to the motor controller.

[0031] In one embodiment, the second cooling channel is disposed on the side wall and the bottom wall of the second shell.

[0032] In one embodiment, the cooling medium flows through the third cooling channel, the first cooling channel, and the second cooling channel in sequence in a circulation manner.

[0033] The present disclosure also provides a vehicle, which includes the drive system as described above.

[0034] The embodiments of the present disclosure have the following advantages: by providing a cooling channel connection structure with an interface open in different directions, the drive system of the present disclosure is highly flexible, can be adapted to different shell arrangements, and can be customized according to requirements, thereby making the system platform-based and shortening the development cycle; by directly sealing and joining the cooling channel sealing structures of different shells, the use of hoses is avoided, thereby solving the problems of corrosion and aging, thereby reducing costs and increasing service life; the direct joining of the cooling channel sealing structures also reduces the pressure drop during the circulation of the coolant; by integrating the cooling channel sealing structure with the shell, the integration of the drive system is improved, the external connection structure is reduced, and the miniaturization of the system is achieved; by arranging the cooling channel sealing structure on the outside of the shell, the size of the system is further reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The advantages and purposes of the present disclosure can be better understood from the preferred embodiments of the present disclosure described in detail below in conjunction with the accompanying drawings. In order to better show the relationship between the various components in the accompanying drawings, the accompanying drawings are not drawn to scale. In the accompanying drawings:

[0036] Figure 1 shows a highly schematic diagram of a drive system for a vehicle according to one embodiment of the present disclosure;

[0037] Figure 2 A partial schematic diagram of a drive system according to an embodiment of the present disclosure is shown;

[0038] Figure 3 Shown according to Figure 2 A schematic cross-sectional view of a portion of a drive system;

[0039] Figure 4 A partial schematic diagram of a drive system according to an embodiment of the present disclosure is shown;

[0040] Figure 5 A partial schematic diagram showing a drive system according to another embodiment of the present disclosure; and

[0041] Figure 6 A cross-sectional schematic diagram of a drive system according to another embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the technical solution of the present disclosure clearer, the technical solution of the embodiment of the present disclosure will be clearly and completely described in combination with the drawings of the specific embodiments of the present disclosure. The same figure marks in the drawings represent the same parts. It should be noted that the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0043] Unless otherwise defined, the technical terms or scientific terms used herein shall have the usual meanings understood by persons with ordinary skills in the field to which the present disclosure belongs. The words "first", "second" and similar words used in the patent application specification and claims of the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not necessarily indicate a quantity limitation. Words such as "include", "comprise" or "have" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to the physical or mechanical connections or connections shown in the drawings, but may include connections or connections equivalent thereto, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0044] Below, see Figures 1 to 6 Various embodiments of the present disclosure are described in detail.

[0045] Figure 1 The drive system included in the vehicle according to the present disclosure is shown highly schematically, which may be an electric drive assembly system. The boxes shown in the figure schematically show the main parts of the drive system and the approximate positions of the various components, but do not represent the actual situation. The arrangement of the actual system can be changed as needed. The drive system may include a first shell 1, a second shell 2, and a third shell 3, and the three shells have respective cooling channels. Of course, the drive system of the present disclosure may also include only the first shell 1 and the third shell 3. It is also possible to include one of the above-mentioned shells of the present disclosure, and the present disclosure does not limit this. In some examples, the first shell 1 includes a motor controller, such as an inverter. The second shell 2 includes a voltage converter, an on-board charger, and a power distributor. The third shell 3 includes a motor and a reduction gearbox. Figure 1In the vertical upward direction, the third shell 3, the first shell 1 and the second shell 2 are arranged in sequence. Specifically, the first shell 1 is installed on the top of the third shell 3, for example, by a threaded connector, and the second shell 2 is also installed on the top of the first shell 1 by a threaded connector. In other examples, the first shell 1 and the second shell 2 can be installed side by side on the top of the third shell 3.

[0046] like Figure 1 As shown schematically, the first housing 1 is provided with a first cooling channel 6, the second housing 2 is provided with a second cooling channel 7, and the third housing 3 is provided with a third cooling channel 8. The positions of the cooling channels in the figure are only schematic or only partially shown.

[0047] The drive system of the present disclosure further includes a first cooling channel connection structure 11, which is integrally formed with the first housing 1 and communicates with the first cooling channel 6. In addition, the first cooling channel connection structure 11 is located outside the first housing 1, in other words, protrudes from the outer surface of the first housing 1. Figure 3 As shown, the first cooling channel connection structure 11 includes a first interface 20 opened toward a first direction (which only schematically shows the position of the interface) and a second interface 21 opened toward a second direction different from the first direction. In specific use, one of the first interface and the second interface can be selectively closed. Figure 3 In the embodiment, the first direction is vertically upward, and the second direction is horizontally leftward. For example, the first direction and the second direction are perpendicular to each other, but the present disclosure is not limited to this.

[0048] The drive system of the present disclosure further includes a second cooling channel connection structure 12, which is integrally formed with the second housing 2 and communicates with the second cooling channel 7. In addition, the second cooling channel connection structure 12 is located outside the second housing 2, in other words, protrudes from the outer surface of the second housing 2. Figure 2 and 3 As shown, the second cooling channel connection structure 12 is sealed with the first interface 20 of the first cooling channel connection structure 11, and the second interface 21 of the first cooling channel connection structure 11 is closed. For example, the second interface 21 of the first cooling channel connection structure 11 is closed by the first plug 17. Similarly, the second cooling channel connection structure 12 also has two interfaces, one of which can be selectively closed. Specifically, Figure 3 The second cooling channel connecting structure 12 in the embodiment has an interface open in the vertical downward direction and an interface open in the horizontal leftward direction, wherein the interface open in the horizontal leftward direction is closed by a second plug 18 .

[0049] The above is a case where the first shell 1 and the second shell 2 are stacked in the vertical direction. When the first shell 1 and the second shell 2 are arranged side by side, the second cooling channel connection structure 12 is sealed and engaged with the second interface 21, and the first interface 20 is closed by a plug.

[0050] like Figure 3 As shown, a first sealing ring 15 is provided between the first cooling channel connection structure 11 and the second cooling channel connection structure 12. For example, the first cooling channel connection structure 11 has a recessed form, and the second cooling channel connection structure 12 has a convex joint form that can be inserted into the recess and matches the recess. The first sealing ring 15 is elastically deformed and sandwiched between the outer wall of the second cooling channel connection structure 12 as the convex joint and the inner wall of the first cooling channel connection structure 11 as the recess, as shown in FIG. Figure 3 As shown in the cross-sectional view in FIG. An annular groove for mounting the first sealing ring 15 is provided on the outer wall of the second cooling channel connecting structure 12 as a raised joint.

[0051] like Figure 3 As shown by the black arrow in the middle, the coolant flows from the first cooling channel connecting structure 11 to the second cooling channel connecting structure 12 .

[0052] In other embodiments, Figure 5 and 6 As shown, the drive system of the present disclosure further includes a transition component 4, which is engaged with the second interface 21 of the first cooling channel connection structure 11, and the first interface 20 of the first cooling channel connection structure 11 is closed. Figure 6 As shown, the first interface 20 of the first cooling channel connection structure 11 can be closed by a first additional plug 19 or a stopper, and the coolant leaves the first housing 1 through the adapter component 4. It should be noted that the first interface 20 can also be realized by adjusting the machining depth of the mold during processing without penetrating the first cooling channel connection structure 11.

[0053] Figure 6 The case where only the first shell 1 is included but not the second shell 2 is shown. In this case, the components required for the drive system can be integrated in the first shell 1. In the case where the system uses a single all-in-one product, one end of the adapter component 4 is engaged with the second interface 21 of the first cooling channel connection structure 11, for example, it is inserted into the second interface 21 and the two are sealed by an interference fit, and the other end is engaged with other cooling equipment of the vehicle, for example, it can be engaged with the cooling system or channel of other parts of the vehicle, or a coolant pump. The adapter component 4 is fixed to the second interface 21 of the first cooling channel connection structure 11 by a fastener 9. The fastener 9 is, for example, a screw, a bolt, etc., such as Figure 5As shown. The adapter component 4 can be made of a hard material, for example, made of the same material as the housing. As shown in the figure, the adapter component 4 has a cylindrical form. In addition, the length of the adapter component 4 can be set or selected as needed.

[0054] Please note, Figure 5 The schematic diagram shows Figure 2 and 3 Examples and Figure 6 The combination of embodiments is used to illustrate that the first cooling channel connection structure of the present disclosure can have interfaces leading to different directions, but this does not represent the actual usage. Specifically, in actual situations, Figure 5 The second housing 2 and the structure on the first cooling channel connecting structure shown in FIG. 1 may not exist.

[0055] like Figure 1 As shown, the drive system of the present disclosure may further include a third cooling channel connection structure 13, which is integrally formed with the third housing 3 and communicates with the third cooling channel 8. In addition, the third cooling channel connection structure 13 is located outside the third housing 3, in other words, protrudes from the outer surface of the third housing 3. Figure 1 and 4 As shown, the drive system of the present disclosure may further include a first additional cooling channel connection structure 14, which is integrally formed with the first housing 1 and communicates with the first cooling channel 6. It should be noted that although Figure 1 It is shown that the first additional cooling channel connection structure 14 and the first cooling channel connection structure 11 are located on opposite sides of the first shell 1, but the actual situation may not be so. The two can be located on two adjacent sides of the first shell 1. Similar to the first cooling channel connection structure 11 and the second cooling channel connection structure 12, the first additional cooling channel connection structure 14 includes a third interface 22 opened toward a third direction and a fourth interface 23 opened toward a fourth direction different from the third direction. The third cooling channel connection structure 13 is sealed with the third interface 22, and the fourth interface 23 is closed. For example, the fourth interface 23 is closed by the fourth plug 24. Similarly, a second sealing ring (not shown in the figure) is provided between the first additional cooling channel connection structure 14 and the third cooling channel connection structure 13. For example, the first additional cooling channel connection structure 14 has the form of a recess, and the third cooling channel connection structure 13 has the form of a convex joint that can be inserted into the recess and matches the recess. The second sealing ring is elastically deformed and sandwiched between the outer wall of the third cooling channel connection structure 13 as a convex joint and the inner wall of the first additional cooling channel connection structure 14 as a recess. An annular groove for mounting a corresponding sealing ring is provided on the outer wall of the third cooling channel connecting structure 13 serving as a raised joint.

[0056] See again Figure 2A second cooling channel outlet 16 may be provided on the second shell 2, and a third cooling channel inlet may be provided on the third shell 3. The second cooling channel outlet 16 is connected to the third cooling channel inlet through an additional pipeline.

[0057] See again Figure 1 The first cooling channel 6 can be arranged on the bottom wall of the first housing 1 and corresponds to the motor controller arranged therein. The second cooling channel 7 can be arranged on the side wall and the bottom wall of the second housing 2 .

[0058] For example, the cooling medium flows in a circulation manner sequentially through the third cooling channel, the first cooling channel 6 and the second cooling channel 7. For example, the cooling medium may be water.

[0059] As described above, by providing a cooling channel connection structure with an interface open in different directions, the drive system of the present invention has high flexibility, can be adapted to different shell arrangements, and can be customized according to requirements, thereby making the system platform-based and shortening the development cycle; by directly sealing and joining the cooling channel sealing structures of different shells, the use of hoses is avoided, thereby solving the problems of corrosion and aging, thereby reducing costs and increasing service life; the direct joining of the cooling channel sealing structures also reduces the pressure drop during the circulation of the coolant; by integrating the cooling channel sealing structure with the shell, the integration of the drive system is improved, the external connection structure is reduced, and the miniaturization of the system is achieved; by arranging the cooling channel sealing structure on the outside of the shell, the size of the system is further reduced.

[0060] The present disclosure also provides a vehicle, the vehicle comprising a drive system as described above. The vehicle may be an electrified vehicle, such as a battery electric vehicle (BEV), a hybrid electric vehicle (HEV), a plug-in hybrid electric vehicle (PHEV), or a range extended electric vehicle (REEV). The vehicle may also be a hydrogen energy vehicle. It should be understood that the vehicle of the present disclosure also has the advantages described above with respect to the drive system.

[0061] In addition, the technical features disclosed above are not limited to the disclosed combinations with other features. Those skilled in the art may also make other combinations between the technical features according to the purpose of the invention to achieve the purpose of the present disclosure.

Claims

1. A drive system for a vehicle, characterized in that: The drive system comprises: A first housing (1) is provided with a first cooling channel (6); and A first cooling channel connection structure (11) is integrally formed with the first housing (1) and is in communication with the first cooling channel (6). The first cooling channel connection structure (11) comprises a first interface (20) opened toward a first direction and a second interface (21) opened toward a second direction different from the first direction, and one of the first interface and the second interface can be selectively closed.

2. The drive system according to claim 1, characterized in that: The drive system further comprises: A second housing (2) is provided with a second cooling channel (7); and A second cooling channel connection structure (12) is integrally formed with the second housing (2) and is in communication with the second cooling channel (7). The second cooling channel connection structure (12) is sealingly engaged with the first interface (20) of the first cooling channel connection structure (11), and the second interface (21) of the first cooling channel connection structure (11) is closed.

3. The drive system according to claim 1, characterized in that: The drive system further comprises a transition component (4) which is engaged with a second interface of the first cooling channel connection structure (11), and the first interface of the first cooling channel connection structure (11) is closed.

4. The drive system according to claim 2, characterized in that: The drive system further comprises: A third housing (3) is provided with a third cooling channel (8); A third cooling channel connection structure (13) is integrally formed with the third housing (3) and is in communication with the third cooling channel (8); and a first additional cooling channel connection structure (14), which is integrally formed with the first housing (1) and communicates with the first cooling channel (6), The first additional cooling channel connection structure (14) comprises a third interface (22) opened toward a third direction and a fourth interface (23) opened toward a fourth direction different from the third direction, and The third cooling channel connection structure (13) is sealingly engaged with the third interface (22), and the fourth interface (23) is closed.

5. The drive system according to claim 4, characterized in that: A first sealing ring (15) is provided between the first cooling channel connection structure (11) and the second cooling channel connection structure (12); and / or a second sealing ring is provided between the first additional cooling channel connection structure (14) and the third cooling channel connection structure (13).

6. The drive system according to claim 5, characterized in that: The first cooling channel connection structure (11) and the first additional cooling channel connection structure (14) have the form of recesses, and the second cooling channel connection structure (12) and the third cooling channel connection structure (13) have the form of protruding joints that can be inserted into and matched with the recesses.

7. The drive system according to claim 6, characterized in that: The first sealing ring (15) and the second sealing ring are respectively elastically deformed and sandwiched between the outer wall of the corresponding protruding joint and the inner wall of the corresponding recess.

8. The drive system according to claim 7, characterized in that: An annular groove for mounting a corresponding sealing ring is arranged on the outer wall of the raised joint.

9. The drive system according to claim 3, characterized in that: One end of the adapter component (4) is connected to the second interface (21) of the first cooling channel connection structure (11), and the other end is connected to other cooling equipment of the vehicle.

10. The driving system according to claim 4, characterized in that: At least one of the first cooling channel connection structure (11), the second cooling channel connection structure (12), the first additional cooling channel connection structure (14) and the third cooling channel connection structure (13) is arranged on the outside of the corresponding housing.

11. The driving system according to claim 4, characterized in that: The first housing (1) includes a motor controller, the second housing (2) includes a voltage converter, an on-board charger and a power distributor, and the third housing (3) includes a motor and a reduction gearbox.

12. The drive system according to claim 11, characterized in that: The second shell (2) is provided with a second cooling channel outlet (16), the third shell (3) is provided with a third cooling channel inlet, and the second cooling channel outlet (16) is connected to the third cooling channel inlet via an additional pipeline.

13. The driving system according to claim 11, characterized in that: The first cooling channel (6) is arranged on the bottom wall of the first housing (1) and corresponds to the motor controller.

14. The drive system according to claim 11, characterized in that: The second cooling channel (7) is arranged on the side wall and the bottom wall of the second shell (2).

15. The drive system according to claim 11, characterized in that: The cooling medium flows sequentially through the third cooling channel, the first cooling channel (6) and the second cooling channel (7) in a cyclic manner.

16. A vehicle, characterized in that: The vehicle comprises a drive system as claimed in any one of claims 1 to 15.

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