Integrated water cooling unit and electric automobile
By integrating the water-cooled unit design, the controller and compressor body are fixed into one unit and direct air cooling is adopted. The space of the controller is reasonably distributed, which solves the problem of the large space occupied by the water-cooled unit and enables the increase of the number of batteries in electric vehicles.
Patent Information
- Application Number
- CN202520418224.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-11
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-03-11
AI Technical Summary
Existing water-cooled units occupy a large space, which limits the number of batteries that can be increased given the limited overall size of electric vehicles.
Design an integrated water-cooled unit that fixes the controller and compressor body into one unit. Integrate the PTC controller, power controller, water pump controller and fan controller in the first housing cavity, and eliminate the use of DC-DC through a high-voltage platform. Use direct air cooling, rationally distribute the controller space, and set a detachable shell to optimize space.
The overall size of the integrated water-cooled unit has been reduced, space utilization has been optimized, it is easier to install in electric vehicles, and the number of batteries has been increased.
Smart Images

Figure CN223735880U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of new energy vehicle technology, and in particular to an integrated water-cooled unit and an electric vehicle. Background Technology
[0002] Electric vehicles (EVs) are vehicles powered by an onboard power source, using an electric motor to drive their wheels. Unlike traditional internal combustion engine vehicles, they rely on an electric motor for propulsion. The water-cooling unit in an EV is used to cool the battery, thereby improving battery performance, ensuring battery safety, and enhancing the reliability of the battery pack.
[0003] Currently, with the development of electric vehicles, the demand for more batteries in electric vehicles is increasing to improve range and reduce charging frequency. Existing water-cooled chiller units occupy a large amount of space, which, given the limited overall size of electric vehicles, limits the number of batteries and hinders the improvement of the total battery capacity. Utility Model Content
[0004] The purpose of this utility model is to provide an integrated water-cooled unit and electric vehicle to solve the problem that the existing water-cooled unit occupies a large space, which, given the limited overall volume of the electric vehicle, prevents the number of batteries from being increased.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] On the one hand, this utility model provides an integrated water-cooled unit, comprising:
[0007] A controller device, comprising a housing and a compressor controller, the housing including a first receiving cavity, the compressor controller being disposed within the first receiving cavity;
[0008] The compressor body is mounted on the outer casing and connected to the compressor controller. The controller device further includes a PTC controller, a power controller, a water pump controller, and a fan controller, all of which are located within the first accommodating cavity.
[0009] As an optional solution for the above-mentioned integrated water-cooled unit, the controller device further includes a first control board and a second control board disposed in the first accommodating cavity. The compressor controller, the PTC controller and the power controller are all disposed on the first control board, and the water pump controller and the fan controller are all disposed on the second control board. The first control board and the second control board are arranged in parallel and at intervals.
[0010] As an optional solution for the aforementioned integrated water-cooled unit, the outer casing is provided with a PTC interface, a power interface, a water pump interface, and a fan interface. The PTC interface and the power interface are both connected to the first control board, and the water pump interface and the fan interface are both connected to the second control board. The PTC interface, the power interface, the water pump interface, and the fan interface are all located on the side of the outer casing closer to the compressor body.
[0011] As an optional solution for the aforementioned integrated water-cooled unit, the controller device further includes a CCU control board, and the housing further includes a second receiving cavity, in which the CCU control board is disposed.
[0012] As an optional solution for the aforementioned integrated water-cooled unit, the housing is provided with a CCU interface, and the CCU interface circuit is connected to the CCU control board; the CCU interface is located on the side of the housing closer to the compressor body.
[0013] As an alternative to the aforementioned integrated water-cooled unit, the outer casing includes a first housing, a second housing, and a third housing. The first housing and the second housing are detachably connected to form the first receiving cavity, and the second housing and the third housing are detachably connected to form the second receiving cavity.
[0014] As an alternative to the above-mentioned integrated water-cooled unit, the first housing and the third housing are respectively located on opposite sides of the second housing, and the compressor body is located in the second housing and is arranged adjacent to the third housing.
[0015] As an alternative to the aforementioned integrated water-cooled unit, the second housing has a wiring through hole, which connects the compressor body and the first receiving cavity. The compressor body can be connected to the compressor controller through the wiring through hole.
[0016] As an optional solution for the aforementioned integrated water-cooled unit, a heat dissipation grid is provided on the outer casing.
[0017] On the other hand, this utility model provides an electric vehicle, including the integrated water-cooled unit as described above.
[0018] The beneficial effects of this utility model are as follows:
[0019] The integrated water-cooled unit includes a controller and a compressor body. The controller includes a housing and a compressor controller. The housing includes a first receiving cavity, within which the compressor controller is housed. The compressor body is mounted on the housing, and wiring is connected to the compressor controller. This integrated design reduces wiring and facilitates installation in electric vehicles. The controller also includes a PTC controller, a power controller, a water pump controller, and a fan controller, all housed within the first receiving cavity. This integration within the compressor controller's housing reduces wiring loops, optimizes space, and eliminates the need for separate housings for each controller, thus reducing the overall size of the integrated water-cooled unit. This allows for a more convenient increase in the number of batteries within the limited overall size of an electric vehicle. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the integrated water-cooled unit provided in an embodiment of the present utility model;
[0021] Figure 2 This is a first structural schematic diagram of a partially integrated water-cooled unit provided in an embodiment of the present utility model;
[0022] Figure 3 This is a schematic diagram of the second structure of a partially integrated water-cooled unit provided in an embodiment of the present utility model.
[0023] In the picture:
[0024] 1. Controller unit; 11. Housing; 111. First receiving cavity; 112. Second receiving cavity; 113. First housing; 114. Second housing; 115. Third housing; 116. Heat dissipation grille; 12. First control board; 13. Second control board; 14. PTC interface; 15. Power interface; 16. Water pump interface; 17. Fan interface; 18. CCU control board; 19. CCU interface; 2. Compressor body. Detailed Implementation
[0025] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. 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.
[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Moreover, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0028] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0029] like Figures 1-3 As shown, this embodiment provides an integrated water-cooled unit for cooling the battery in an electric vehicle.
[0030] The integrated water-cooled unit includes a controller device 1 and a compressor body 2. The controller device 1 includes a housing 11 and a compressor controller. The housing 11 includes a first receiving cavity 111, within which the compressor controller is housed. The compressor body 2 is mounted on the housing 11, with wiring connected to the compressor controller. This integrated design allows for reduced wiring and easier installation in electric vehicles. The controller device 1 also includes a PTC controller, a power controller, a water pump controller, and a fan controller, all housed within the first receiving cavity 111. This integration within the compressor controller's housing 11 reduces wiring loops, optimizes space, and eliminates the need for separate housings for each controller, thereby reducing the overall size of the integrated water-cooled unit. This allows for a more convenient increase in the number of batteries within the limited overall size of an electric vehicle.
[0031] Optionally, the integrated water-cooled unit includes a fan and a water pump, and adopts a high-voltage platform, with both the fan and water pump powered by 600V, thereby eliminating the use of a DC-DC converter, reducing the size of the power controller, and further reducing the internal space. Further optionally, a heat dissipation grille 116 is provided on the housing 11, which improves the air-cooling effect. Direct air cooling reduces the design of refrigerant pipes and cold plates, making the installation of the integrated water-cooled unit in electric vehicles more flexible.
[0032] like Figure 1 and Figure 2As shown, the controller device 1 also includes a first control board 12 and a second control board 13 disposed in the first receiving cavity 111. The compressor controller, PTC controller and power controller are all disposed on the first control board 12, and the water pump controller and fan controller are all disposed on the second control board 13. At the same time, the first control board 12 and the second control board 13 are arranged in parallel and at intervals. Thus, by distributing several controllers on the first control board 12 and the second control board 13 respectively, the spatial positions of several controllers can be reasonably distributed, which facilitates the wiring layout and reduces the integration difficulty. Meanwhile, the outer casing 11 is equipped with a PTC interface 14, a power interface 15, a water pump interface 16, and a fan interface 17. The PTC interface 14 and the power interface 15 are both connected to the first control board 12, and the water pump interface 16 and the fan interface 17 are both connected to the second control board 13. Thus, through the PTC interface 14, the power interface 15, the water pump interface 16, and the fan interface 17, the controller device 1 can be connected to the PTC device, the power supply, the water pump, and the fan respectively to achieve communication connection. Furthermore, the PTC interface 14, the power interface 15, the water pump interface 16, and the fan interface 17 are all located on the side of the outer casing 11 closer to the compressor body 2. Thus, the PTC interface 14, the power interface 15, the water pump interface 16, and the fan interface 17, as well as the related wiring, occupy the space on the side of the compressor body 2 and do not occupy other space, thereby making the integrated water-cooled unit smaller in size.
[0033] like Figure 1 and Figure 3 As shown, the controller device 1 also includes a CCU control board 18, and the housing 11 also includes a second receiving cavity 112. The CCU control board 18 is disposed in the second receiving cavity 112. By providing an additional second receiving cavity 112 on the housing 11, the CCU control board 18 can be installed, allowing the CCU control board 18 to be integrated within the housing 11 of the compressor controller, thereby optimizing space and reducing the overall size of the integrated water-cooled unit. Optionally, the housing 11 is provided with a CCU interface 19, and the CCU interface 19 is connected to the CCU control board 18. Thus, the controller device 1 can be connected to a remote data device through the CCU interface 19 to achieve communication. The CCU interface 19 is located on the side of the housing 11 closer to the compressor body 2, so the CCU interface 19 and related wiring occupy the space on the side of the compressor body 2, without occupying other space, thereby miniaturizing the integrated water-cooled unit.
[0034] Furthermore, the outer casing 11 includes a first casing 113, a second casing 114, and a third casing 115. The first casing 113 and the second casing 114 are detachably connected to form a first receiving cavity 111, and the second casing 114 and the third casing 115 are detachably connected to form a second receiving cavity 112. Thus, the detachable connection of the first casing 113 and the second casing 114 facilitates the installation or maintenance of the compressor controller, PTC controller, power controller, water pump controller, and fan controller. The detachable connection of the second casing 114 and the third casing 115 facilitates the installation or maintenance of the CCU control board 18. Moreover, the first casing 113, the second casing 114, and the third casing 115 are all formed by integral molding, thereby increasing the overall IP protection level. The first housing 113 and the third housing 115 are respectively located on opposite sides of the second housing 114. The compressor body 2 is located in the second housing 114 and is adjacent to the third housing 115. Thus, the second housing 114, the second receiving cavity 112, and the CCU control board 18 all occupy the space on the side of the compressor body 2, thereby achieving further miniaturization of the integrated water-cooled unit. Optionally, the second housing 114 has a wiring through hole that connects the compressor body 2 and the first receiving cavity 111. The compressor body 2 can be connected to the compressor controller through the wiring through hole, so that the compressor controller and the compressor body 2 can be directly connected through the wiring through hole on the outer casing 11, thereby reducing wiring.
[0035] This embodiment also provides an electric vehicle including the aforementioned integrated water-cooled unit. By using the integrated water-cooled unit, the electric vehicle can integrate several controllers, reduce wiring loops, optimize space, and reduce the housing usage required when each controller is set up separately, thereby reducing the overall size of the integrated water-cooled unit. Under the condition that the overall volume of the electric vehicle is limited, it is convenient to increase the number of batteries.
[0036] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. An integrated water chilling unit, characterized by, The utility model relates to a controller device (1) and a compressor body (2), and the controller device (1) comprises a shell (11) and a compressor controller, the shell (11) comprises a first accommodating cavity (111), and the compressor controller is arranged in the first accommodating cavity (111); the compressor body (2) is arranged on the shell (11) and is connected with the compressor controller in circuit; the controller device (1) further comprises a PTC controller, a power supply controller, a water pump controller and a fan controller, and the PTC controller, the power supply controller, the water pump controller and the fan controller are all arranged in the first accommodating cavity (111). The controller device (1) further comprises a first control panel (12) and a second control panel (13) arranged in the first accommodating cavity (111), the compressor controller, the PTC controller and the power supply controller are arranged on the first control panel (12), and the water pump controller and the fan controller are arranged on the second control panel (13); the first control panel (12) and the second control panel (13) are arranged in parallel and are spaced apart. The shell (11) is provided with a PTC interface (14), a power supply interface (15), a water pump interface (16) and a fan interface (17), the PTC interface (14) and the power supply interface (15) are both connected with the first control panel (12) in circuit, the water pump interface (16) and the fan interface (17) are both connected with the second control panel (13) in circuit; the PTC interface (14), the power supply interface (15), the water pump interface (16) and the fan interface (17) are all located on the side of the shell (11) close to the compressor body (2).
2. The integrated water chiller unit of claim 1, wherein The controller device (1) further comprises a CCU control panel (18), and the shell (11) further comprises a second accommodating cavity (112), and the CCU control panel (18) is arranged in the second accommodating cavity (112).
3. The integrated water chiller unit of claim 2, wherein, The shell (11) is provided with a CCU interface (19), and the CCU interface (19) is connected with the CCU control panel (18) in circuit; the CCU interface (19) is located on the side of the shell (11) close to the compressor body (2).
4. The integrated water chiller unit of claim 1, wherein, The shell (11) comprises a first shell (113), a second shell (114) and a third shell (115), the first shell (113) and the second shell (114) are detachably connected to form the first accommodating cavity (111), and the second shell (114) and the third shell (115) are detachably connected to form the second accommodating cavity (112).
5. The integrated water chiller unit of claim 4, wherein, The first shell (113) and the third shell (115) are respectively arranged on opposite sides of the second shell (114), and the compressor body (2) is arranged on the second shell (114) and is arranged adjacent to the third shell (115).
6. The integrated water chiller unit of claim 4, wherein, 7. The integrated water chiller unit of claim 6, wherein, 8. The integrated water chiller unit of claim 7, wherein, The second shell (114) is provided with a wire through hole, which communicates the compressor body (2) and the first containing cavity (111), and the compressor body (2) can be connected to the compressor controller through the wire through hole.
9. The integrated water chiller unit according to any one of claims 1 to 8, characterized in that, The shell (11) is provided with a heat dissipation grid plate (116).
10. An electric vehicle, characterized by An integrated water cooling unit comprising the integrated water cooling unit according to any one of claims 1-9.