Automobile energy storage battery liquid cooling tray

Abstract

The utility model discloses a kind of automobile energy storage battery liquid cooling trays, including tray base and tray cover, the tray cover is welded in tray base top, the tray base upper surface is provided with liquid cooling tank, one side of the liquid cooling tank is provided with liquid inlet and liquid outlet, the tray cover bottom is provided with flow channel plate, the flow channel plate lower wall is provided with flow channel, the flow channel is composed of small flow channel and large flow channel, the large flow channel is set to small flow channel outside, the second solenoid valve is hinged in small flow channel inside, first solenoid valve is hinged at the gap between small flow channel and large flow channel, the first solenoid valve and second solenoid valve are all controlled by automobile ECU, the tray base bottom is fixedly installed with protective plate, the tray cover left and right sides are all welded with expansion board, the expansion board upper surface is integrally provided with connecting beam, the tray base left and right sides are integrally provided with multiple supporting tables, the utility model has practicality and can change flow channel area.

Description

Technical Field

[0001] This utility model relates to the field of liquid cooling tray technology, specifically to a liquid cooling tray for automotive energy storage batteries. Background Technology

[0002] With the rapid development of electric vehicles (EVs), batteries, as core energy storage components, are directly affected by temperature in terms of performance and lifespan. Batteries generate a significant amount of heat during charging and discharging. If this heat cannot be dissipated in time, the battery temperature will rise, leading to the following problems: Performance degradation: High temperatures accelerate internal chemical reactions, resulting in capacity decay and reduced power output. Safety hazards: Overheating may cause thermal runaway, even leading to battery fire or explosion. Reduced energy efficiency: In low-temperature environments, the battery's internal resistance increases, reducing charging and discharging efficiency. Traditional battery thermal management systems (BTMS) often employ a fixed-channel liquid cooling design. The coolant flow rate and channel area cannot be adjusted according to real-time battery temperature changes, resulting in the following limitations: Insufficient cooling efficiency: Under high load or high temperature conditions, a fixed channel may not provide sufficient cooling capacity. Overcooling: Under low temperature or low load conditions, a fixed channel may cause the battery temperature to drop too low, affecting performance. Energy waste: The cooling system always operates at a fixed power, unable to dynamically adjust according to actual needs, resulting in energy waste.

[0003] Therefore, it is necessary to design a liquid cooling tray for automotive energy storage batteries that is highly practical and allows for changes in the flow channel area. Utility Model Content

[0004] The purpose of this invention is to provide a liquid-cooled tray for automotive energy storage batteries to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a liquid cooling tray for automotive energy storage batteries, including a tray base and a tray cover, the tray cover being welded to the top of the tray base, a liquid cooling tank being provided on the upper surface of the tray base, an inlet and an outlet being provided on one side of the liquid cooling tank, a flow channel plate being provided at the bottom of the tray cover, and a flow channel being provided on the lower wall of the flow channel plate.

[0006] According to the above technical solution, the flow channel is composed of a combination of small flow channels and large flow channels, with the large flow channel located outside the small flow channels.

[0007] According to the above technical solution, a second solenoid valve is hinged inside the small flow channel, and a first solenoid valve is hinged at the gap between the small flow channel and the large flow channel. Both the first solenoid valve and the second solenoid valve are controlled by the vehicle ECU.

[0008] According to the above technical solution, a protective plate is fixedly installed at the bottom of the tray base.

[0009] According to the above technical solution, expansion plates are welded to both the left and right sides of the tray cover, and a connecting beam is integrally provided on the upper surface of the expansion plate.

[0010] According to the above technical solution, multiple support platforms are integrally provided on both the left and right sides of the pallet base.

[0011] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: In the process of using the energy storage battery, if the temperature of the energy storage battery is low, the second solenoid valve opens and the first solenoid valve opens, so that the coolant flows only through the small flow channel, preventing the battery temperature from being too low and affecting the battery performance. If the temperature of the energy storage battery is high, the second solenoid valve closes and the first solenoid valve opens, so that the coolant flows through both the small flow channel and the large flow channel at the same time, increasing the flow area of ​​the coolant and preventing the battery temperature from overheating. Attached Figure Description

[0012] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0013] Figure 1 This is a schematic diagram of the overall front sectional view of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the tray base in this utility model;

[0015] Figure 3 This is a bottom view of the tray base in this utility model;

[0016] Figure 4 This is a schematic diagram of the tray cover structure in this utility model;

[0017] Figure 5 This is a bottom view of the tray cover in this utility model.

[0018] In the diagram: 1-Tray base; 11-Liquid cooling tank; 12-Liquid inlet; 13-Liquid outlet; 14-Protective plate; 15-Support platform; 2-Tray cover; 21-Flow channel plate; 22-Expansion plate; 23-Connecting beam; 24-Flow channel; 25-Small flow channel; 26-Large flow channel; 27-First solenoid valve; 28-Second solenoid valve. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-5 The present invention provides a technical solution: a liquid cooling tray for automotive energy storage batteries, comprising a tray base 1 and a tray cover 2, wherein a protective plate 14 is fixedly installed at the bottom of the tray base 1, thereby improving the tray's resistance to impact and puncture by installing the protective plate 14 at the bottom of the tray base 1.

[0021] The tray cover 2 is welded with expansion plates 22 on both the left and right sides. The upper surface of the expansion plate 22 is integrally provided with a connecting beam 23. The energy storage battery is fixedly installed on the upper surface of the tray cover 2 through the connecting beam 23. The tray base 1 is integrally provided with multiple support platforms 15 on both the left and right sides, which support the expansion plate 22.

[0022] The tray cover 2 is welded to the top of the tray base 1. The upper surface of the tray base 1 is provided with a liquid cooling tank 11. The liquid cooling tank 11 is provided with an inlet 12 and an outlet 13 on one side. The bottom of the tray cover 2 is provided with a flow channel plate 21. The lower wall of the flow channel plate 21 is provided with a flow channel 24. The tray is formed by combining the tray base 1 and the tray cover 2. During use, the coolant enters the interior of the tray base 1 through the inlet 12. Since the bottom of the tray cover 2 is provided with a flow channel 24, the coolant flows through the flow channel 24 through the entire bottom of the tray cover 2, thereby cooling the energy storage battery.

[0023] The flow channel 24 is composed of a small flow channel 25 and a large flow channel 26. The large flow channel 26 is located outside the small flow channel 25. A second solenoid valve 28 is hinged inside the small flow channel 25. A first solenoid valve 27 is hinged at the gap between the small flow channel 25 and the large flow channel 26. Both the first solenoid valve 27 and the second solenoid valve 28 are controlled by the vehicle ECU. When the energy storage battery is in use, if the temperature of the energy storage battery is low, the second solenoid valve 28 and the first solenoid valve 27 open, so that the coolant flows only through the small flow channel 25 to prevent the battery temperature from being too low and affecting the battery performance. If the temperature of the energy storage battery is high, the second solenoid valve 28 closes and the first solenoid valve 27 opens, so that the coolant flows through both the small flow channel 25 and the large flow channel 26 at the same time to increase the flow area of ​​the coolant and prevent the battery temperature from overheating.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A liquid-cooled tray for automotive energy storage batteries, comprising a tray base (1) and a tray cover (2), characterized in that: The tray cover (2) is welded to the top of the tray base (1). A liquid cooling tank (11) is provided on the upper surface of the tray base (1). An inlet (12) and an outlet (13) are provided on one side of the liquid cooling tank (11). A flow channel plate (21) is provided at the bottom of the tray cover (2). A flow channel (24) is provided on the lower wall of the flow channel plate (21).

2. The automotive energy storage battery liquid cooling tray according to claim 1, characterized in that: The flow channel (24) is composed of a small flow channel (25) and a large flow channel (26), with the large flow channel (26) located outside the small flow channel (25).

3. The automotive energy storage battery liquid cooling tray according to claim 2, characterized in that: The small flow channel (25) is hinged with a second solenoid valve (28), and the gap between the small flow channel (25) and the large flow channel (26) is hinged with a first solenoid valve (27). The first solenoid valve (27) and the second solenoid valve (28) are both controlled by the vehicle ECU.

4. The automotive energy storage battery liquid cooling tray according to claim 1, characterized in that: A protective plate (14) is fixedly installed at the bottom of the tray base (1).

5. The automotive energy storage battery liquid cooling tray according to claim 1, characterized in that: The tray cover (2) is welded with extension plates (22) on both the left and right sides, and the upper surface of the extension plate (22) is integrally provided with a connecting beam (23).

6. The automotive energy storage battery liquid cooling tray according to claim 1, characterized in that: The tray base (1) has multiple support platforms (15) integrally set on both the left and right sides.

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