A thermal management integrated assembly for new energy special vehicle

Abstract

A kind of heat management integrated assembly for new energy special vehicle, including heat exchanger, electronic expansion valve assembly, expansion water kettle, pressure cover and electronic water pump.The top of expansion water kettle is provided with water replenishment, and the edge forms annular boss, pressure cover is sleeved on the boss, and the bottom is provided with first water inlet and first water outlet.The water inlet connector of electronic water pump is inserted and communicated with the first water outlet.The upper surface of heat exchanger is fixedly connected to the bottom of expansion water kettle, and its second water outlet is communicated with the first water inlet, to realize the backflow of cooling liquid.Electronic expansion valve assembly is arranged on the lower surface of heat exchanger, including electronic expansion valve body and one side flow guide connector, the flow guide connector is provided with refrigerant outlet channel, the outlet of electronic expansion valve body is communicated with the refrigerant inlet of heat exchanger, and the flow guide connector is communicated with the refrigerant outlet of heat exchanger.The structure realizes the high integration of heat management component, improves system compactness and installation convenience, and is suitable for new energy special vehicle with limited space.

Description

Technical Field

[0001] This utility model relates to the field of automotive air conditioning technology, specifically to a thermal management integrated component for new energy special vehicles. Background Technology

[0002] New energy special vehicles refer to non-passenger vehicles that mainly use electric drive systems and are specifically designed for specific purposes. In existing technologies, key thermal management components such as compressors, electric water pumps, and heat exchangers are mostly arranged separately, located in different positions on the vehicle chassis or body structure, and interconnected by refrigerant and coolant pipelines.

[0003] However, in new energy special vehicles, due to the compact vehicle structure and dense functional equipment, the space reserved for the installation of the thermal management system within the vehicle compartment is extremely limited. The distributed thermal management solutions used in traditional passenger vehicles are insufficient to meet the integration and high compactness requirements of special vehicles. Therefore, to solve these problems, there is an urgent need for a thermal management integrated structure with a reasonable layout, high integration, and suitable for the operating conditions of new energy special vehicles. Summary of the Invention

[0004] This utility model addresses the shortcomings of existing technologies by proposing an integrated thermal management component for new energy special vehicles. The specific technical solution is as follows:

[0005] A thermal management integrated component for new energy special vehicles, characterized in that:

[0006] Includes heat exchangers, electronic expansion valve assemblies, expansion tanks, pressure caps, and electronic water pumps;

[0007] The expansion tank has a water inlet at the top and a first water inlet and a first water outlet at the bottom.

[0008] The edge of the water inlet extends outward to form an annular protrusion, and the pressure cover is sleeved on the annular protrusion;

[0009] The electronic water pump includes an inlet connector and an outlet connector, wherein the inlet connector is inserted into and connected to the first outlet.

[0010] The upper surface of the heat exchanger is fixedly connected to the bottom of the expansion tank, and the second outlet of the heat exchanger is connected to the first inlet.

[0011] The electronic expansion valve assembly is disposed on the lower surface of the heat exchanger. The electronic expansion valve assembly includes an electronic expansion valve body and a flow guide joint disposed on one side of the electronic expansion valve body. The flow guide joint has a refrigerant outlet channel inside. The outlet of the electronic expansion valve body is connected to the refrigerant inlet of the heat exchanger, and the flow guide joint is connected to the refrigerant outlet of the heat exchanger.

[0012] To better realize this utility model, it can be further made as follows:

[0013] The expansion tank is equipped with a low liquid level sensor and a water temperature sensor.

[0014] Furthermore, the cross-section of the annular boss is elliptical, and the pressure cap is sealed to the annular boss.

[0015] Furthermore: the upper surface of the heat exchanger is a plate-like structure, and the four corners of the upper surface are provided with mounting holes for connection. The heat exchanger is bolted through the mounting holes and fixedly connected to the bottom of the expansion tank.

[0016] Furthermore, the second inlet of the heat exchanger is connected to an inlet pipe for guiding external coolant into the heat exchanger.

[0017] Furthermore, the expansion tank is equipped with a flow guide baffle located between the first inlet and the first outlet.

[0018] The beneficial effects of this utility model are as follows:

[0019] First, by combining the heat exchanger, electronic expansion valve assembly, expansion tank, electronic water pump and pressure cover into an integrated thermal management module and adopting an integrated upper and lower arrangement, all functional components are directly connected and bonded. On the one hand, this achieves an efficient heat exchange path, and on the other hand, it significantly reduces the space occupied and connection complexity of the vehicle thermal management system, and improves the system integration and the adaptability of the overall layout of new energy special vehicles.

[0020] Secondly, a low liquid level sensor and a water temperature sensor are installed on the expansion tank to meet the real-time monitoring requirements of the vehicle's thermal management system for the coolant status, thereby achieving accurate sensing of liquid level and temperature.

[0021] Third, the heat exchanger adopts a plate-like structure on its upper surface, with mounting holes at its four corners. It is then fixed to the bottom of the expansion tank with bolts, which not only improves the overall assembly strength of the components but also facilitates modular installation and subsequent disassembly and maintenance, thereby enhancing structural stability and applicability. Attached Figure Description

[0022] Figure 1 This is the first structural diagram of the present utility model;

[0023] Figure 2 This is a structural diagram of a heat exchanger;

[0024] Figure 3 A schematic diagram showing the connection between the expansion tank and the electric water pump;

[0025] Figure 4 for Figure 3 AA section view;

[0026] Figure 5 This is a structural diagram of the electronic expansion valve assembly;

[0027] The attached diagram is as follows: 1. Heat exchanger; 2. Electronic expansion valve assembly; 3. Electronic expansion valve body; 4. Flow guide connector; 5. Expansion tank; 6. Annular boss; 7. Pressure cover; 8. Electronic water pump; 9. Inlet pipe; 10. First inlet; 11. First outlet; 12. Inlet connector; 13. Outlet connector; 14. Second inlet; 15. Second outlet; 16. Refrigerant outlet; 17. Refrigerant inlet; 18. Low liquid level sensor; 19. Water temperature sensor; 20. Mounting hole; 21. Flow guide baffle. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] In the description of this utility model, it should be noted that the terms "vertical," "upper," "lower," and "horizontal," 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 the utility model and 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. In addition, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] like Figures 1 to 5 As shown, this embodiment provides a thermal management integrated component for new energy special vehicles, including a heat exchanger 1, an electronic expansion valve assembly 2, an expansion tank 5, a pressure cap 7, and an electronic water pump 8. Each component has a clear structure and a compact arrangement, making it suitable for efficient integration in scenarios where the thermal management space of the whole vehicle is limited.

[0031] The expansion tank 5 adopts a hollow shell structure. A water inlet for replenishing liquid is provided on the top of the expansion tank 5. The edge of the water inlet extends outward to form an integrally formed annular protrusion 6. The cross-section of the protrusion is elliptical, which is suitable for narrow space conditions.

[0032] The pressure cover 7 is a metal shell structure. The lower inner wall of the pressure cover 7 is provided with an installation port that matches the outer surface of the annular boss 6. The pressure cover 7 is fitted and fixed on the outer surface of the annular boss 6 by interference fit, thereby achieving reliable sealing and shockproof connection and ensuring closed pressure resistance during use.

[0033] The expansion tank 5 has a first inlet 10 and a first outlet 11 at its bottom. The expansion tank 5 also has a low liquid level sensor 18 and a water temperature sensor 19 on its side wall for monitoring the internal coolant level and temperature.

[0034] The expansion tank 5 is equipped with a flow guide baffle 21 located between the first inlet 10 and the first outlet 11. The flow guide baffle 21 is used to guide the coolant to form a flow path in the tank, thereby improving fluid stability and mixing uniformity.

[0035] The electronic water pump 8 uses an integrated motor to drive the pump body. The electronic water pump 8 includes an inlet connector 12 and an outlet connector 13. The inlet connector 12 is inserted into and connected to the first outlet 11 of the expansion tank 5. A liquid-tight connection is achieved between the two through a sealing structure, ensuring no leakage when the electronic water pump 8 draws liquid. The outlet connector 13 of the electronic water pump 8 is connected to other cooling units through a coolant pipeline to achieve circulation drive.

[0036] The heat exchanger 1 is a conventional plate-fin structure. The upper surface of the heat exchanger 1 is a metal plate structure, and there are mounting holes 20 at the four corners of the upper surface. After the upper surface of the heat exchanger 1 is bolted through the mounting holes 20, it is fixedly connected to the corresponding pre-set threaded holes at the bottom of the expansion tank 5 to achieve modular fastening assembly.

[0037] The second outlet 15 of the heat exchanger 1 is connected to the first inlet 10 of the expansion tank 5, forming a closed coolant circulation path.

[0038] In addition, the inlet of the heat exchanger 1 is connected to an inlet pipe 9, which is used to guide external coolant into the inner channel of the heat exchanger 1 for heat exchange.

[0039] The electronic expansion valve assembly 2 is located on the lower surface of the heat exchanger 1, and its overall orientation is opposite to that of the expansion tank 5, which facilitates the effective use of the upper and lower space for partitioned arrangement.

[0040] The electronic expansion valve assembly 2 includes an electronic expansion valve body 3 and a flow guide 4 disposed on one side thereof, the flow guide 4 having a refrigerant outlet 16 channel inside.

[0041] The outlet of the electronic expansion valve body 3 is connected to the refrigerant inlet 17 of the heat exchanger 1, and the flow guide 4 is connected to the refrigerant outlet 16 of the heat exchanger 1. The above-mentioned connection parts achieve structural fastening and refrigerant passage sealing through plug-in, threaded fit or welding, ensuring fluid isolation and conduction stability during the heat exchange process.

[0042] The working principle is as follows: In the integrated structure of this embodiment, the expansion tank 5 serves as a coolant buffer and replenishment unit, and together with the low liquid level sensor 18 and the water temperature sensor 19, it realizes real-time monitoring of the coolant status; the electronic water pump 8 drives the coolant to the heat exchanger 1 through the first water outlet 11 connected to the bottom of the tank to participate in heat exchange.

[0043] The heat exchanger 1 is located below the expansion tank 5 and is fixedly connected by upper and lower bolts to form a compact structure. The heat exchanger 1 has a coolant channel and a refrigerant channel inside, and the coolant is cooled by heat exchange between the refrigerant and the coolant.

[0044] The electronic expansion valve assembly 2 is disposed on the lower surface of the heat exchanger 1. High-pressure refrigerant first enters the electronic expansion valve body 3 and, after throttling, enters the refrigerant inlet 17 of the heat exchanger 1 from the outlet of the electronic expansion valve body 3 at low pressure. After heat exchange with the coolant inside the heat exchanger 1, the evaporated refrigerant enters the guide connector 4 through the refrigerant outlet 16 of the heat exchanger 1 and flows back to the compressor side along the subsequent pipeline, completing the closed-loop circulation of the refrigerant circuit. This structure, through its layered arrangement and functional coupling, achieves efficient integration and synergistic heat exchange between the coolant and refrigerant paths, improving the miniaturization and reliability of the vehicle's thermal management system. It will be apparent to those skilled in the art that this invention is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all changes falling within the meaning and scope of the equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0045] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A thermal management integrated component for new energy special vehicles, characterized in that: Includes heat exchangers, electronic expansion valve assemblies, expansion tanks, pressure caps, and electronic water pumps; The expansion tank has a water inlet at the top and a first water inlet and a first water outlet at the bottom. The edge of the water inlet extends outward to form an annular protrusion, and the pressure cover is sleeved on the annular protrusion; The electronic water pump includes an inlet connector and an outlet connector, wherein the inlet connector is inserted into and connected to the first outlet. The upper surface of the heat exchanger is fixedly connected to the bottom of the expansion tank, and the second outlet of the heat exchanger is connected to the first inlet. The electronic expansion valve assembly is disposed on the lower surface of the heat exchanger. The electronic expansion valve assembly includes an electronic expansion valve body and a flow guide joint disposed on one side of the electronic expansion valve body. The flow guide joint has a refrigerant outlet channel inside. The outlet of the electronic expansion valve body is connected to the refrigerant inlet of the heat exchanger, and the flow guide joint is connected to the refrigerant outlet of the heat exchanger.

2. The thermal management integrated component for new energy special vehicles according to claim 1, characterized in that: The expansion tank is equipped with a low liquid level sensor and a water temperature sensor.

3. The thermal management integrated component for new energy special vehicles according to claim 2, characterized in that: The cross-section of the annular boss is elliptical, and the pressure cap is sealed to the annular boss.

4. The thermal management integrated component for new energy special vehicles according to claim 3, characterized in that: The upper surface of the heat exchanger is a plate-like structure, and the four corners of the upper surface are provided with mounting holes for connection. The heat exchanger is bolted through the mounting holes and fixedly connected to the bottom of the expansion tank.

5. The thermal management integrated component for new energy special vehicles according to claim 4, characterized in that: The second inlet of the heat exchanger is connected to an inlet pipe, which is used to guide external coolant into the heat exchanger.

6. The thermal management integrated component for new energy special vehicles according to claim 5, characterized in that: The expansion tank is equipped with a flow guide baffle located between the first inlet and the first outlet.

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