Driving device and vehicle

Abstract

The utility model aims to provide a driving device and a vehicle. The problem that a driving device is large in occupied space is at least solved. The first controller is used for controlling the first driving structure, and the second controller is used for controlling the second driving structure. The heat dissipation channel comprises a first heat exchange section, the first heat exchange section is located between the first controller and the second controller, a first refrigerant is arranged in the heat dissipation channel, and the first refrigerant is used for exchanging heat with the first controller and the second controller. A common heat dissipation channel is arranged between the first controller and the second controller. And the first refrigerant in the same heat dissipation channel is utilized to dissipate heat for the two electric control systems at the same time. And components such as a heat dissipation pipeline and a driving pump do not need to be independently configured for each electric control system, so that the system architecture is simplified, hardware redundancy is reduced, and the occupied space of the driving device is reduced.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, specifically to a drive device and a vehicle. Background Technology

[0002] Distributed electric drive systems distribute power sources across all wheels of a vehicle, enabling precise torque control, efficient power transmission, and flexible spatial layout, significantly improving vehicle performance and handling. However, as the power of distributed electric drive systems continues to increase, key components such as the internal electronic control power supply generate a significant amount of heat during operation.

[0003] In the prior art, distributed electric drives include two independent control systems, and a cooling circulation system is set up for the corresponding control systems.

[0004] However, existing technologies suffer from the problem of occupying a large amount of space. Utility Model Content

[0005] This application provides a drive unit and a vehicle to at least solve the problem of the drive unit occupying a large space.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] In a first aspect, a driving device is provided, comprising: a first driving structure and a second driving structure, a first controller and a second controller, and a heat dissipation channel. The first controller controls the first driving structure, and the second controller controls the second driving structure. The heat dissipation channel includes a first heat exchange section located between the first controller and the second controller. A first refrigerant is disposed within the heat dissipation channel, and the first refrigerant exchanges heat with the first controller and the second controller.

[0008] By setting up a shared heat dissipation channel between the first and second controllers, the first refrigerant within the same channel simultaneously cools both electronic control systems. This eliminates the need for separate heat dissipation pipes, drive pumps, and other components for each electronic control system, simplifying the system architecture, reducing hardware redundancy, and consequently minimizing the space occupied by the drive unit.

[0009] In one possible implementation, the first drive structure and the second drive structure are arranged opposite to each other. The first controller and the second controller are located between the first drive structure and the second drive structure, and are spaced apart along the arrangement direction of the first drive structure and the second drive structure.

[0010] The first controller is located between the first drive structure and the first heat exchange section, reducing the heat radiation from the first drive structure to the first heat exchange section. Similarly, the second controller is located between the second drive structure and the first heat exchange section, reducing the heat radiation from the second drive structure to the first heat exchange section.

[0011] In one possible implementation, the first heat exchange section includes a cooling region. Along the direction in which the first and second drive structures are arranged, the cooling region covers the surface of the first controller facing the second controller, and the cooling region covers the surface of the second controller facing the first controller.

[0012] The refrigerant channel is directly attached to the opposite surfaces of the two controllers, forming a face-to-face bidirectional heat conduction path, which improves heat dissipation efficiency.

[0013] In one possible implementation, the drive unit further includes a power supply. The power supply is electrically connected to the first controller and the second controller. At least a portion of the heat dissipation channel is disposed within the power supply and exchanges heat with it.

[0014] The heat dissipation channel is embedded inside the power supply. When the first refrigerant flows through the heat dissipation channel inside the power supply, it exchanges heat with the power supply and carries away the heat generated by the power supply during operation, thereby cooling the power supply.

[0015] In one possible implementation, the power source is located upstream of the first controller and the second controller, along the flow direction of the first refrigerant.

[0016] The power supply temperature is lower than the temperatures of the first and second controllers. This configuration creates a heat dissipation method that cools the low-heat source first and then heats the high-heat source, thereby improving heat dissipation efficiency.

[0017] In one possible implementation, the heat dissipation channel further includes a second heat exchange section, which is arranged in a circuitous manner within the housing of the power supply. The second heat exchange section includes an inlet and an outlet located on the same side of the housing of the power supply.

[0018] By using a detour-designed second heat exchange section, the heat exchange area between the second heat exchange section and the power supply is increased, thereby improving the heat dissipation effect on the power supply.

[0019] In one possible implementation, the drive unit further includes a cooler. The cooler is in communication with both the first drive structure and the second drive structure. A cooling channel is provided within the cooler, and a second refrigerant is disposed within the cooling channel. At least a portion of the heat dissipation channel is located within the cooler and exchanges heat with the cooling channel.

[0020] The first refrigerant in the heat dissipation channel and the second refrigerant in the cooling channel exchange heat in the cooler. The second refrigerant radiates heat to the first refrigerant, thereby reducing the temperature of the second refrigerant so that the second refrigerant can continue to cool the first drive structure and the second drive structure.

[0021] In one possible implementation, the heat dissipation channel includes a third heat exchange section located within the cooler, wherein the flow direction of the first refrigerant in the third heat exchange section is opposite to the flow direction of the second refrigerant in the cooling channel.

[0022] When the first refrigerant and the second refrigerant flow countercurrently, the maximum logarithmic mean temperature difference at the heat exchange interface increases, thereby improving heat transfer and shortening the thermal response time. This, in turn, enhances the heat exchange capacity between the first and second refrigerants.

[0023] In one possible implementation, the cooler is located downstream of the first controller and the second controller, along the flow direction of the first refrigerant.

[0024] The temperatures of the first and second controllers are lower than the temperature of the cooling channel. This configuration creates a heat dissipation method that cools the low-heat source first and then heats the high-heat source, thereby improving heat dissipation efficiency.

[0025] In a second aspect, a vehicle is provided, including the drive unit provided in any possible embodiment of the first aspect.

[0026] It should be noted that the technical effects of any implementation method in the second aspect can be found in the technical effects of the corresponding implementation method in the first aspect, and will not be repeated here.

[0027] The beneficial effects of this application are:

[0028] (1) By setting up a shared heat dissipation channel between the first controller and the second controller, the first refrigerant in the same heat dissipation channel can simultaneously dissipate heat for both electronic control systems. This eliminates the need to configure separate heat dissipation pipes, drive pumps, and other components for each electronic control system, simplifying the system architecture, reducing hardware redundancy, and thus reducing the space occupied by the drive unit.

[0029] (2) The first controller is located between the first drive structure and the first heat exchange section, reducing the heat radiation from the first drive structure to the first heat exchange section. Similarly, the second controller is located between the second drive structure and the first heat exchange section, reducing the heat radiation from the second drive structure to the first heat exchange section.

[0030] (3) The refrigerant channel is directly attached to the opposite surfaces of the two controllers, forming a face-to-face bidirectional heat conduction path to improve heat dissipation efficiency.

[0031] (4) The heat dissipation channel is embedded inside the power supply. When the first refrigerant flows through the heat dissipation channel inside the power supply, it exchanges heat with the power supply and carries away the heat generated by the power supply during operation, thereby cooling the power supply.

[0032] (5) The temperature of the power supply is lower than that of the first controller and the second controller. This setting forms a heat dissipation method of cooling the low heat source first and then heating the high heat source, thereby improving the heat dissipation efficiency.

[0033] (6) By using the second heat exchange section which is arranged in a roundabout way, the heat exchange area between the second heat exchange section and the power supply is increased, thereby improving the heat dissipation effect on the power supply.

[0034] (7) The first refrigerant in the heat dissipation channel and the second refrigerant in the cooling channel exchange heat in the cooler. The second refrigerant radiates heat to the first refrigerant, thereby reducing the temperature of the second refrigerant so that the second refrigerant can continue to cool the first drive structure and the second drive structure.

[0035] (8) When the first refrigerant and the second refrigerant flow in countercurrent, the maximum logarithmic mean temperature difference at the heat exchange interface is increased, and the heat transfer is improved, thus shortening the thermal response time. This improves the heat exchange capacity between the first refrigerant and the second refrigerant.

[0036] (9) The temperature of the first controller and the second controller is lower than the temperature of the cooling channel. This setting forms a heat dissipation method of cooling the low heat source first and then heating the high heat source, thereby improving the heat dissipation efficiency. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the structure of a driving device provided in an embodiment of this application;

[0038] Figure 2 This is a schematic diagram of the internal structure arrangement of a drive device provided in an embodiment of this application;

[0039] Figure 3 This is a schematic diagram showing the location of a cooling area provided in an embodiment of this application;

[0040] Figure 4 This is a schematic diagram of the structure of a first heat exchange section provided in an embodiment of this application;

[0041] Figure 5 This is a schematic diagram of the structure of a connector provided in an embodiment of this application;

[0042] Figure 6 This is a schematic diagram showing the correspondence between a cooler and a connector provided in an embodiment of this application.

[0043] Figure label:

[0044] 100 - Drive unit;

[0045] 1-First drive structure; 2-Second drive structure; 3-First controller; 4-Second controller; 5-Heat dissipation channel; 51-First heat exchange section; 511-Cooling area; 52-Second heat exchange section; 6-Power supply; 7-Cooler; 8-Connector; 81-First interface; 82-Second interface; 83-Third interface; 84-Fourth interface. Detailed Implementation

[0046] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model patent.

[0047] The embodiments of this utility model will be described below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be understood that the preferred embodiments are only for illustrating this utility model and not for limiting the scope of protection of this utility model.

[0048] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. The illustrations only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0049] See Figure 1 , Figure 2 and Figure 3 As shown, this application provides a driving device 100, which includes: a first driving structure 1 and a second driving structure 2, a first controller 3 and a second controller 4, and a heat dissipation channel 5. The first controller 3 controls the first driving structure 1, and the second controller 4 controls the second driving structure 2. The heat dissipation channel 5 includes a first heat exchange section 51 located between the first controller 3 and the second controller 4. A first refrigerant is disposed within the heat dissipation channel 5 for heat exchange with the first controller 3 and the second controller 4.

[0050] By setting up a shared heat dissipation channel 5 between the first controller 3 and the second controller 4, the first refrigerant within the same heat dissipation channel 5 can simultaneously cool both electronic control systems. This eliminates the need to configure separate heat dissipation pipes, drive pumps, and other components for each electronic control system, simplifying the system architecture, reducing hardware redundancy, and thus reducing the space occupied by the drive unit 100.

[0051] The embodiments of this application will be described in detail below with reference to the accompanying drawings, and the application scenarios of the embodiments of this application will be introduced first before the detailed description of the embodiments of this application.

[0052] The drive unit 100 provided in this application can be applied to the field of transportation. Specifically, it can be applied to vehicles, robots, electric vertical take-off and landing aircraft, light rail in rail transit, maglev trains, etc.

[0053] This application also provides a vehicle, which includes a drive unit 100.

[0054] When the drive unit 100 is used in a vehicle, the drive unit 100 can be a distributed electric drive, that is, the power system is distributed on each wheel or axle of the vehicle.

[0055] The vehicle provided in this application can be a gasoline-powered vehicle, an electric vehicle, a hydrogen-powered vehicle, or a hybrid vehicle. Furthermore, the vehicle can be a sedan, SUV, MPV, sports car, racing car, truck, engineering vehicle, special vehicle, or any other vehicle including a drive unit 100.

[0056] In the example row, the first refrigerant can be: a chemically synthesized refrigerant (e.g., chlorofluorocarbons, hydrochlorofluorocarbons, hydrofluorocarbons, hydrofluoroolefins), a natural refrigerant (e.g., ammonia, carbon dioxide, water, hydrocarbons), a mixed refrigerant, or an oil-based refrigerant.

[0057] When the primary refrigerant is water, heat dissipation channel 5 is connected to the vehicle's overall cooling system. This will be explained further using this as an example below.

[0058] See Figure 1 , Figure 2 and Figure 3 As shown, in one possible implementation, the first drive structure 1 and the second drive structure 2 are arranged opposite to each other. The first controller 3 and the second controller 4 are located between the first drive structure 1 and the second drive structure 2, and are spaced apart along the arrangement direction of the first drive structure 1 and the second drive structure 2.

[0059] The first controller 3 is located between the first drive structure 1 and the first heat exchange section 51, reducing the heat radiation from the first drive structure 1 to the first heat exchange section 51. Similarly, the second controller 4 is located between the second drive structure 2 and the first heat exchange section 51, reducing the heat radiation from the second drive structure 2 to the first heat exchange section 51.

[0060] The first drive structure 1 and the second drive structure 2 are set opposite to each other, meaning that the output shafts of the first drive structure 1 and the second drive structure 2 are oriented in opposite directions and are located on the same axis.

[0061] The first controller 3 and the second controller 4 are arranged using the gap between the first drive structure 1 and the second drive structure 2, thereby reducing the extra space occupied by the first controller 3 and the second controller 4, and thus reducing the space occupied by the drive structure.

[0062] In one possible implementation, the first heat exchange section 51 includes a cooling region 511. Along the direction in which the first drive structure 1 and the second drive structure 2 are arranged, the cooling region 511 covers the surface of the first controller 3 facing the second controller 4, and the cooling region 511 covers the surface of the second controller 4 facing the first controller 3.

[0063] The refrigerant channel is directly attached to the opposite surfaces of the two controllers, forming a face-to-face bidirectional heat conduction path, which improves heat dissipation efficiency.

[0064] For example, the area of ​​the cooling region 511 is larger than the area of ​​the surface of the first controller 3 facing the second controller 4.

[0065] For example, the area of ​​the cooling region 511 is larger than the area of ​​the surface of the second controller 4 facing the first controller 3.

[0066] See Figure 2 and Figure 4 As shown, in one possible implementation, the drive device 100 further includes a power supply 6. The power supply 6 is electrically connected to the first controller 3 and the second controller 4. At least a portion of the heat dissipation channel 5 is disposed within the power supply 6 and exchanges heat with the power supply 6.

[0067] The heat dissipation channel 5 is embedded inside the power supply 6. When the first refrigerant flows through the heat dissipation channel 5 inside the power supply 6, it exchanges heat with the power supply 6 and carries away the heat generated by the operation of the power supply 6, thereby cooling the power supply 6.

[0068] In one possible implementation, the power source 6 is located upstream of the first controller 3 and the second controller 4, along the flow direction of the first refrigerant. Specifically, the first refrigerant flows first through the power source 6, then through the first controller 3 and the second controller 4. When the first refrigerant passes through the first controller 3 and the second controller 4, it passes through both controllers simultaneously and exchanges heat with both controllers at the same time, without distinguishing the order.

[0069] The temperature of power supply 6 is lower than that of the first controller 3 and the second controller 4. This configuration forms a heat dissipation method that prioritizes low heat sources and then high heat sources, thereby improving heat dissipation efficiency.

[0070] In one possible implementation, the heat dissipation channel 5 further includes a second heat exchange section 52, which is arranged in a roundabout manner within the power supply 6. The second heat exchange section 52 includes an inlet and an outlet located on the same side of the housing of the power supply 6.

[0071] By using a roundabout second heat exchange section 52, the heat exchange area between the second heat exchange section 52 and the power supply 6 is increased, thereby improving the heat dissipation effect on the power supply 6.

[0072] It should be noted that the second heat exchange section 52 is arranged in a roundabout manner within the housing of the power supply 6, which means that the second heat exchange section 52 forms at least one turning direction within the housing of the power supply 6.

[0073] The second heat exchange section 52 includes an inlet and an outlet located on the same side of the power supply 6 housing. This reduces the space occupied by the heat dissipation channel 5 outside the power supply 6 housing.

[0074] For example, the shape of the second heat exchanger is U-shaped or U-shaped.

[0075] For example, the shape of the second heat exchanger is W-shaped or W-like.

[0076] In this way, the heat exchange area between the first refrigerant and the power source 6 can be extended, the contact time can be increased, and the heat exchange capacity can be improved, thereby improving the cooling effect on the power source 6.

[0077] See Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, in one possible embodiment, the drive device 100 further includes a cooler 7. The cooler 7 is in communication with both the first drive structure 1 and the second drive structure 2. The cooler 7 has a cooling channel, and a second refrigerant is disposed within the cooling channel. At least a portion of the heat dissipation channel 5 is located within the cooler 7 and exchanges heat with the cooling channel.

[0078] The first refrigerant in the heat dissipation channel 5 and the second refrigerant in the cooling channel exchange heat in the cooler 7. The second refrigerant radiates heat to the first refrigerant, thereby reducing the temperature of the second refrigerant so that the second refrigerant can continue to cool the first drive structure 1 and the second drive structure 2.

[0079] For example, the second refrigerant can be: chemically synthesized refrigerants (e.g., chlorofluorocarbons, hydrochlorofluorocarbons, hydrofluorocarbons, hydrofluoroolefins), natural refrigerants (e.g., ammonia, carbon dioxide, water, hydrocarbons), mixed refrigerants, or oil-based refrigerants.

[0080] In one possible implementation, the drive unit 100 includes a housing with a first outlet communicating with the first drive structure 1 and a second outlet communicating with the second drive structure 2. The first outlet and the second outlet are connected to a cooler 7.

[0081] In one possible implementation, the drive unit 100 further includes a connector 8, which includes a first interface 81 connected to a first outlet and a second outlet, and connected to a cooling channel in the cooler 7. The connector 8 also includes a second interface 82 connected to the cooling channel in the cooler 7. The second refrigerant flows from the first interface 81 to the second interface 82.

[0082] The connector 8 also includes a third interface 83, which is connected to the outlet of the first heat exchange section 51 and to the heat dissipation channel 5 in the cooler 7. The connector 8 also includes a fourth interface 84, which is connected to the heat dissipation channel 5 in the cooler 7, and the first refrigerant flows from the third interface 83 to the fourth interface 84.

[0083] In one possible implementation, the heat dissipation channel 5 includes a third heat exchange section located within the cooler 7, wherein the flow direction of the first refrigerant in the third heat exchange section is opposite to the flow direction of the second refrigerant in the cooling channel.

[0084] When the first refrigerant and the second refrigerant flow countercurrently, the maximum logarithmic mean temperature difference at the heat exchange interface increases, thereby improving heat transfer and shortening the thermal response time. This, in turn, enhances the heat exchange capacity between the first and second refrigerants.

[0085] For example, one end of the third heat exchange section is connected to the third interface 83, and the other end is connected to the fourth interface 84.

[0086] For example, the flow direction of the second refrigerant flowing from the first interface 81 to the second interface 82 is opposite to the flow direction of the first refrigerant flowing from the third interface 83 to the fourth interface 84. This increases the heat exchange capacity between the first and second refrigerants.

[0087] In one possible implementation, the cooler 7 is located downstream of the first controller 3 and the second controller 4, along the flow direction of the first refrigerant.

[0088] The temperatures of the first controller 3 and the second controller 4 are lower than the temperature of the cooling channel. This configuration forms a heat dissipation method that cools the low heat source first and then heats the high heat source, thereby improving heat dissipation efficiency.

[0089] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A drive device (100), characterized in that include: First drive structure (1) and second drive structure (2); A first controller (3) and a second controller (4), wherein the first controller (3) is used to control the first drive structure (1) and the second controller (4) is used to control the second drive structure (2); The heat dissipation channel (5) includes a first heat exchange section (51), which is located between the first controller (3) and the second controller (4). The heat dissipation channel (5) contains a first refrigerant, which is used to exchange heat with the first controller (3) and the second controller (4).

2. The drive arrangement (100) according to claim 1, characterized in that The first drive structure (1) and the second drive structure (2) are arranged opposite to each other; the first controller (3) and the second controller (4) are located between the first drive structure (1) and the second drive structure (2) and are spaced apart along the arrangement direction of the first drive structure (1) and the second drive structure (2).

3. The drive arrangement (100) according to claim 2, characterized in that The first heat exchange section (51) includes a cooling region (511); along the direction in which the first drive structure (1) and the second drive structure (2) are arranged, the cooling region (511) covers the surface of the first controller (3) facing the second controller (4), and the cooling region (511) covers the surface of the second controller (4) facing the first controller (3).

4. The drive device (100) according to claim 1, characterized in that The drive device (100) further includes: Power supply (6) is electrically connected to the first controller (3) and the second controller (4); At least a portion of the heat dissipation channel (5) is disposed within the power supply (6) and exchanges heat with the power supply (6).

5. The drive arrangement (100) according to claim 4, characterized in that Along the flow direction of the first refrigerant, the power source (6) is located upstream of the first controller (3) and the second controller (4).

6. The drive device (100) according to claim 4, characterized in that The heat dissipation channel (5) further includes a second heat exchange section (52), which is arranged in a roundabout manner inside the housing of the power supply (6). The second heat exchange section (52) includes an inlet and an outlet located on the same side of the housing of the power supply (6).

7. The drive device (100) according to claim 1, characterized in that The drive device (100) further includes: The cooler (7) is connected to both the first drive structure (1) and the second drive structure (2); the cooler (7) is provided with a cooling channel, and the cooling channel is provided with a second refrigerant; At least a portion of the heat dissipation channel (5) is located within the cooler (7) and exchanges heat with the cooling channel.

8. The drive arrangement (100) according to claim 7, characterized in that The heat dissipation channel (5) includes a third heat exchange section located within the cooler (7), wherein the flow direction of the first refrigerant in the third heat exchange section is opposite to the flow direction of the second refrigerant in the cooling channel.

9. The drive arrangement (100) according to claim 7, characterized in that Along the flow direction of the first refrigerant, the cooler (7) is located downstream of the first controller (3) and the second controller (4).

10. A vehicle characterized by comprising: The drive device (100) includes any one of claims 1-9.

Images