Expansion box heat management integrated structure

Abstract

The utility model discloses a heat management integrated structure of an expansion box, the bottom of the expansion box is fixedly connected with a connecting plate, the connecting plate is provided with an electronic water pump and a heat exchanger, an internal connecting pipe is arranged in the connecting plate, and the electronic water pump and the heat exchanger are both located below the expansion box. The number of parts is reduced, and the whole vehicle arrangement space is saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile thermal management, and in particular relates to an expansion box thermal management integrated structure. Background Art

[0002] With the development of new energy vehicles, the performance and requirements for thermal management systems are becoming increasingly demanding, leading to greater complexity in these systems. Commercially available thermal management systems for new energy vehicles generally employ either non-integrated or highly integrated thermal management structures. Non-integrated thermal management structures require numerous components, impacting vehicle layout, while highly integrated thermal management structures are complex and expensive.

[0003] A utility model patent, publication number CN115923439A, published on April 7, 2023, discloses a novel thermal management integrated module system, method, and hybrid vehicle. The system includes an integrated module and a suspension base. The integrated module is secured to the vehicle body via the suspension base and includes an electronic expansion valve, an electronic expansion valve base, a sensor base, a PT sensor, an intermediate heat exchanger, an electric water pump, a water temperature sensor, a PT expansion tank, and a suspension base. The electronic expansion valve is fixedly connected to the electronic expansion valve base, the PT sensor is fixedly connected to the sensor base, and both the electronic expansion valve base and the sensor base are fixedly connected to the intermediate heat exchanger. The intermediate heat exchanger is fixedly connected to the PT expansion tank, which is also connected to a water temperature sensor and an electric water pump. This novel thermal management integrated module system also fails to resolve the aforementioned technical issues. Utility Model Content

[0004] The purpose of the utility model is to address the deficiencies of the existing technology and provide an expansion box thermal management integrated structure which has a simple structure, reduces the number of parts and saves space for vehicle layout.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] The expansion tank thermal management integrated structure has a connecting plate fixedly connected to the bottom of the expansion tank, an electronic water pump and a heat exchanger are provided on the connecting plate, an internal connecting pipe is provided inside the connecting plate, and the electronic water pump and the heat exchanger are both located below the expansion tank.

[0007] The expansion tank includes an inner cavity, and the inner connecting pipe includes a first inner connecting pipe and a second inner connecting pipe, wherein the first inner connecting pipe is connected to the electronic water pump and the inner cavity, and the second inner connecting pipe is connected to the heat exchanger and the inner cavity.

[0008] The connection between the connecting plate and the expansion tank is formed into a stepped structure.

[0009] The expansion tank has a square structure.

[0010] A box cover is provided at the middle of the top end of the expansion box.

[0011] The connecting plate and the expansion tank are an integrated structure.

[0012] An avoidance notch is provided at one end of the connecting plate.

[0013] The electronic water pump includes an electronic water pump outlet, and the heat exchanger includes a heat exchanger outlet. The opening ends of the electronic water pump outlet and the heat exchanger outlet are respectively facing two sides of the expansion tank.

[0014] The technical effect of the utility model is as follows: the expansion box thermal management integrated structure of the utility model is adopted, the electronic water pump and the heat exchanger are integrated on the expansion box and installed as a whole with the expansion box, and the internal connecting pipes are used to achieve pipeline connectivity, thereby reducing the number of parts used, development costs and vehicle weight, saving vehicle layout space, and rationally designing the expansion box body structure to further reduce space occupancy, simple structure and low use cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] This manual includes the following drawings, which show the following contents:

[0016] Figure 1 This is a schematic diagram of the main structure of the expansion tank thermal management integrated structure of the utility model;

[0017] Figure 2-1 and Figure 2-2 It is a schematic diagram of the internal structure of the present utility model.

[0018] The markings in the figure are: 1. Expansion tank; 2. Electronic water pump; 3. Heat exchanger; 4. Connecting plate; 5. First internal connecting pipe; 6. Second internal connecting pipe; 7. Electronic water pump outlet; 8. Heat exchanger outlet; 9. Avoidance gap; 10. Tank cover; 11. Inner cavity. DETAILED DESCRIPTION

[0019] The following is a further detailed description of the specific implementation methods of the present invention by describing the embodiments with reference to the accompanying drawings, with the aim of helping those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention and to facilitate their implementation.

[0020] like Figures 1 to 2-2As shown, the expansion tank thermal management integrated structure features a connecting plate 4 fixedly connected to the bottom of the expansion tank 1. The connecting plate 4 houses an electronic water pump 2 and a heat exchanger 3, with internal connecting pipes located within. Both the electronic water pump 2 and heat exchanger 3 are located below the expansion tank 1. These components are located at the bottom of the expansion tank 1 and are integrated with the expansion tank 1. These components can be pre-installed, simplifying installation. A flow channel is provided within the connecting plate 4, connecting the expansion tank 1 to the electronic water pump 2 and heat exchanger 3. The electronic water pump 2 is responsible for pressurizing the coolant, ensuring its circulation within the cooling system. The flow rate is precisely controlled based on the cooling system's actual needs, improving cooling efficiency and reducing energy consumption, thereby achieving more efficient thermal management. The heat exchanger 3 dissipates heat from the coolant, ensuring its efficient circulation within the heat exchanger 3. The expansion tank is located above the heat exchanger 3, facilitating water vapor separation. The expansion tank 1 is integrated with the electronic water pump 2 through the first internal connecting pipe 5, reducing the expansion tank 1-electronic water pump 2 connecting pipe and the electronic water pump 2 mounting bracket components. The expansion tank 1 is integrated with the heat exchanger 3 through the second internal connecting pipe 6, reducing the expansion tank 1-heat exchanger 3 connecting pipe and the heat exchanger 3 mounting bracket components, thereby reducing the development of multiple components, reducing the cost and weight of the entire vehicle, and saving space for the entire vehicle layout.

[0021] like Figures 1 to 2-2 As shown, the expansion tank 1 includes an inner cavity 11, and internal connecting pipes include a first internal connecting pipe 5 and a second internal connecting pipe 6. The first internal connecting pipe 5 connects the electronic water pump 2 to the inner cavity 11, and the second internal connecting pipe 6 connects the heat exchanger 3 to the inner cavity 11. Both the electronic water pump 2 and the heat exchanger 3 communicate with the inner cavity 11 of the expansion tank 1 via the internal connecting pipes, eliminating the need for bracket components and reducing development costs. The connection ends of the electronic water pump 2 and the heat exchanger 3 are both snapped onto the inlet ends of the internal connecting pipes and sealed with a sealing structure. The bodies of the electronic water pump 2 and the heat exchanger 3 can be secured to the expansion tank 1 by adhesive or threaded connections. Since both are mounted on the connecting plate 4, they will not come into contact with the coolant inside the expansion tank 1 or affect the expansion tank 1 body. Therefore, there is no need to increase the wall thickness or volume of the expansion tank 1, thereby reducing material costs and space requirements. The first internal connecting pipe 5 and the second internal connecting pipe 6 are both vertical structures, facilitating processing.

[0022] like Figure 2-2 As shown, the connection plate 4 and the expansion tank 1 are connected to form a stepped structure. Since the electronic water pump 2 and the heat exchanger 3 are arranged on the connection plate 4, they use the space below the expansion tank 1 as the installation area, reducing the volume of the integrated structure of the three, making the structure more compact and more flexible.

[0023] like Figures 1 to 2-2As shown, the expansion tank 1 has a square structure. This reduces molding complexity and facilitates placement on the vehicle. Other components or pipelines connected to the expansion tank 1, such as vent pipes and valves, can be located directly on the side or top of the tank, minimizing spatial interference between components and connected pipelines.

[0024] like Figures 1 to 2-2 As shown, a tank cover 10 is provided at the middle of the top of the expansion tank 1. The tank cover 10 is used to discharge the gas in the cooling system and serves as an inlet for adding coolant. By increasing the coolant pressure, the water pump pressure is increased, and cavitation of the electronic water pump 2 is also prevented.

[0025] like Figure 2-2 As shown, the connecting plate 4 and the expansion tank 1 are an integrated structure. The connecting plate 4 is integrally formed with the expansion tank 1 using an injection molding process, eliminating the need for the connecting process between the connecting plate 4 and the expansion tank 1, ensuring the quality of the expansion tank 1, improving production efficiency, and achieving a development with fewer parts.

[0026] like Figure 2-1 As shown, one end of the connecting plate 4 is further provided with an escape notch 9. The escape notch 9 is designed as a notch at one end of the connecting plate 4 to provide an escape space for other pipelines in the vehicle. Therefore, there is no need to make an escape design for the expansion tank 1, and the volume of the inner cavity 11 will not be reduced, thus saving the development and design costs of the expansion tank 1.

[0027] like Figure 1 As shown, the electronic water pump 2 includes an electronic water pump outlet 7, and the heat exchanger 3 includes a heat exchanger outlet 8. The openings of the electronic water pump outlet 7 and the heat exchanger outlet 8 face opposite sides of the expansion tank 1. The pipes connecting the electronic water pump 2 and the heat exchanger 3 face opposite directions, eliminating the need for routing the pipes from the bottom of the integrated structure, thereby increasing layout flexibility.

[0028] The expansion tank thermal management integrated structure integrates the electronic water pump 2 and the heat exchanger 3 on the expansion tank 1 and is installed as a whole with the expansion tank 1, and uses internal connecting pipes to achieve pipeline connectivity, thereby reducing the number of components used, development costs and vehicle weight, saving vehicle layout space, and rationally designing the expansion tank 1 body structure to further reduce space occupancy, simple structure, and low cost of use.

[0029] The above description of the present invention is provided as an example, in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described method. Any non-substantial improvements made using the method concepts and technical solutions of the present invention, or any application of the above-described concepts and technical solutions of the present invention to other situations without modification, are all within the scope of protection of the present invention.

Claims

1. An expansion tank thermal management integrated structure, characterized by: A connecting plate (4) is fixedly connected to the bottom of the expansion tank (1), an electronic water pump (2) and a heat exchanger (3) are provided on the connecting plate (4), an internal connecting pipe is provided inside the connecting plate (4), and the electronic water pump (2) and the heat exchanger (3) are both located below the expansion tank (1).

2. The expansion tank thermal management integrated structure according to claim 1, characterized in that: The expansion tank (1) includes an inner cavity (11), and the internal connecting pipes include a first internal connecting pipe (5) and a second internal connecting pipe (6), wherein the first internal connecting pipe (5) is connected to the electronic water pump (2) and the inner cavity (11), and the second internal connecting pipe (6) is connected to the heat exchanger (3) and the inner cavity (11).

3. The expansion tank thermal management integrated structure according to claim 2, characterized in that: The connection plate (4) and the expansion tank (1) are connected to form a stepped structure.

4. The expansion tank thermal management integrated structure according to claim 2 or 3, characterized in that: The expansion tank (1) has a square structure.

5. The expansion tank thermal management integrated structure according to claim 3, characterized in that: A box cover (10) is provided at the middle of the top end of the expansion box (1).

6. The expansion tank thermal management integrated structure according to claim 5, characterized in that: The connecting plate (4) and the expansion tank (1) are an integrated structure.

7. The expansion tank thermal management integrated structure according to claim 6, characterized in that: One end of the connecting plate (4) is provided with an avoidance notch (9).

8. The expansion tank thermal management integrated structure according to claim 1, characterized in that: The electronic water pump (2) includes an electronic water pump outlet (7), and the heat exchanger (3) includes a heat exchanger outlet (8). The opening ends of the electronic water pump outlet (7) and the heat exchanger outlet (8) are respectively oriented toward two sides of the expansion tank (1).

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