Battery pack cooling structure

Abstract

The utility model relates to the technical field of cooling structures, in particular to a battery pack cooling structure which comprises a battery pack body, a bottom plate is arranged on the lower surface of the battery pack body, a surrounding plate is fixedly connected to the upper surface of the bottom plate, and two heat exchange tubes are symmetrically and fixedly connected to the bottom of the inner side wall of the surrounding plate. The pump body works to suck cold water in the cold water tank into the heat exchange pipe, the battery pack body works to generate heat to cause the temperature in the coaming to rise, and the heat flows from high temperature to low temperature according to the heat conduction theorem, so that the heat is conducted into the heat exchange pipe along the heat transfer sheet and the heat conduction rod, and the cold water in the heat exchange pipe flows to take away the heat; under the conveying action of the pump body, the cold water returns to the cold water tank along the return pipe, and the refrigeration sheet ensures the low-temperature effect of the cold water, so that circulating cooling is realized, the cooling requirement of the battery pack is met, the service life of the battery pack is prevented from being shortened by heat accumulation, and safe use of the battery pack is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling structures, in particular to a battery pack cooling structure. Background Art

[0002] A battery pack is a power system composed of multiple battery cells and battery modules, which is used to provide electrical energy. Battery packs have many applications, and can be used as the main energy storage device for electric vehicles, as well as as energy storage devices for solar and wind power generation systems. Battery packs are used to store excess electricity and release it when needed, providing a stable power supply, etc.

[0003] Since the charging and discharging current of the battery pack is large, relying on traditional natural cooling or air cooling can no longer meet the cooling needs of the battery pack, which can easily cause heat accumulation and reduce the service life of the battery pack, and even lead to safety accidents. Therefore, a battery pack cooling structure is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a battery pack cooling structure to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a battery pack cooling structure comprises a battery pack body, the lower surface of the battery pack body is provided with a bottom plate, the upper surface of the bottom plate is fixedly connected to a surrounding plate, the bottom of the inner side wall of the surrounding plate is symmetrically fixedly connected with two heat exchange tubes, the right end of the heat exchange tube extends out of the surrounding plate and is connected to a cold water tank, the right side wall of the cold water tank is installed with a refrigeration plate, the left end of the heat exchange tube extends out of the surrounding plate and is connected to a connecting pipe, the upper surface of the heat exchange tube is evenly fixedly connected with a heat conducting rod, the bottom end of the heat conducting rod extends into the interior of the heat exchange tube, the top end of the heat conducting rod is fixedly connected with a heat transfer plate, the left side of the front surface of the surrounding plate is fixedly connected with a fixing plate, the upper surface of the fixing plate is installed with a pump body, a water pumping pipe is connected between one end of the liquid inlet of the pump body and the front surface of the connecting pipe, and a reflux pipe is connected between one end of the liquid outlet of the pump body and the top of the front surface of the cold water tank.

[0006] As a further preferred embodiment of the technical solution: a right side wall of the bottom plate is fixedly connected with a transverse plate, and the bottom of the cold water tank is fixedly connected to an upper surface of the transverse plate.

[0007] As a further preferred embodiment of the present technical solution: the front side of the upper surface of the cold water tank is connected with a water supply pipe.

[0008] As a further preferred embodiment of the present technical solution: a sealing cap is threadedly connected to the top of the outer side wall of the water adding pipe.

[0009] As a further preferred embodiment of the technical solution: a through groove is provided on the right side of the front surface of the cold water tank, and a glass plate is fixedly connected to the inner side wall of the through groove.

[0010] As a further preferred embodiment of the present technical solution: four mounting blocks are symmetrically fixedly connected to the outer side wall of the bottom plate.

[0011] As a further preferred embodiment of the present technical solution: a mounting hole is provided on the lower surface of the mounting block.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model draws cold water in the cold water tank into the heat exchange tube through the operation of the pump body. The operation of the battery pack body generates heat, which causes the temperature inside the enclosure to rise. According to the heat conduction theorem, heat flows from high temperature to low temperature, so the heat is conducted to the inside of the heat exchange tube along the heat transfer plate and the heat conduction rod. The cold water in the heat exchange tube takes away the heat. Under the conveying action of the pump body, the cold water returns to the cold water tank along the return pipe. The refrigeration plate ensures the low temperature effect of the cold water, thereby realizing circulating cooling, meeting the cooling demand of the battery pack, avoiding heat accumulation that reduces the service life of the battery pack, and ensuring the safe use of the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a left-side structural schematic diagram of the utility model;

[0015] Figure 2 It is a right view structural schematic diagram of the utility model;

[0016] Figure 3 This is a front view structural schematic diagram of the utility model;

[0017] Figure 4 It is a schematic diagram of the structure of the heat exchange tube and the heat transfer plate in the utility model;

[0018] Figure 5 It is a schematic diagram of the cross-sectional structure of the heat exchange tube in the utility model;

[0019] Figure 6 For the utility model Figure 2 A-region structure enlargement.

[0020] In the figure: 1. Battery pack body; 2. Bottom plate; 3. Enclosure; 4. Heat exchange tube; 5. Cold water tank; 6. Connecting pipe; 7. Heat conducting rod; 8. Heat transfer plate; 9. Fixing plate; 10. Pump body; 11. Water suction pipe; 12. Return pipe; 13. Refrigeration plate; 14. Horizontal plate; 15. Water supply pipe; 16. Sealing cap; 17. Through groove; 18. Glass plate; 19. Mounting block; 20. Mounting hole. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application, and cannot be understood as limitations on the present application. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0022] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0023] See also Figure 1-6 The utility model provides a technical solution: a battery pack cooling structure, including a battery pack body 1, a bottom plate 2 is provided on the lower surface of the battery pack body 1, a surrounding plate 3 is fixedly connected to the upper surface of the bottom plate 2, two heat exchange tubes 4 are symmetrically fixedly connected to the bottom of the inner wall of the surrounding plate 3, the right end of the heat exchange tube 4 extends out of the surrounding plate 3 and is connected to a cold water tank 5, a refrigeration plate 13 is installed on the right side wall of the cold water tank 5, the left end of the heat exchange tube 4 extends out of the surrounding plate 3 and is connected to a connecting pipe 6, a heat transfer rod 7 is evenly fixedly connected to the upper surface of the heat exchange tube 4, the bottom end of the heat transfer rod 7 extends into the interior of the heat exchange tube 4, the top of the heat transfer rod 7 is fixedly connected to a heat transfer plate 8, the left side of the front surface of the surrounding plate 3 is fixedly connected to a fixed plate 9, the fixed plate 9 A pump body 10 is installed on the upper surface of the body, a pumping pipe 11 is connected between one end of the liquid inlet of the pump body 10 and the front surface of the connecting pipe 6, and a return pipe 12 is connected between one end of the liquid outlet of the pump body 10 and the top of the front surface of the cold water tank 5; the pump body 10 works to draw the cold water in the cold water tank 5 into the heat exchange tube 4, the battery pack body 1 generates heat during operation, which causes the internal temperature of the enclosure 3 to rise, and according to the heat conduction theorem, heat flows from high temperature to low temperature, so the heat is conducted to the inside of the heat exchange tube 4 along the heat transfer plate 8 and the heat conducting rod 7, and the cold water in the heat exchange tube 4 takes away the heat, and under the conveying action of the pump body 10, the cold water returns to the cold water tank 5 along the return pipe 12, and the refrigeration plate 13 ensures the low temperature effect of the cold water, thereby realizing circulating cooling.

[0024] In this embodiment, specifically: a horizontal plate 14 is fixedly connected to the right side wall of the bottom plate 2 , and the bottom of the cold water tank 5 is fixedly connected to the upper surface of the horizontal plate 14 ; the horizontal plate 14 is provided to support the cold water tank 5 .

[0025] In this embodiment, specifically: the front side of the upper surface of the cold water tank 5 is connected with a water supply pipe 15 to facilitate water replenishment into the cold water tank 5 .

[0026] In this embodiment, specifically: a sealing cap 16 is threadedly connected to the top of the outer wall of the water adding pipe 15; tightening the sealing cap 16 can improve the sealing performance of the water adding pipe 15 and reduce the volatilization of cold water.

[0027] In this embodiment, specifically: a through groove 17 is opened on the right side of the front surface of the cold water tank 5, and a glass plate 18 is fixedly connected to the inner wall of the through groove 17; it is convenient to observe the water level of the cold water in the cold water tank 5, so that water can be replenished in time.

[0028] In this embodiment, specifically: four mounting blocks 19 are symmetrically fixedly connected to the outer side wall of the bottom plate 2 , so that the mounting blocks 19 and the bottom plate 2 can move synchronously.

[0029] In this embodiment, specifically: a mounting hole 20 is opened on the lower surface of the mounting block 19; the mounting block 19 can be locked by cooperating with an external screw through the mounting hole 20.

[0030] The working principle of the utility model is as follows: the pump body 10 works to draw the cold water in the cold water tank 5 into the heat exchange tube 4, the battery pack body 1 works to generate heat, causing the internal temperature of the enclosure 3 to rise, and according to the heat conduction theorem, the heat flows from high temperature to low temperature, so the heat is conducted to the inside of the heat exchange tube 4 along the heat transfer plate 8 and the heat conducting rod 7, and the cold water in the heat exchange tube 4 takes away the heat, and under the conveying action of the pump body 10, the cold water returns to the cold water tank 5 along the return pipe 12, and the refrigeration plate 13 ensures the low temperature effect of the cold water, thereby realizing circulating cooling, meeting the cooling demand of the battery pack, avoiding heat accumulation and reducing the service life of the battery pack, and ensuring the safe use of the battery pack.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A battery pack cooling structure, characterized in that: The invention comprises a battery pack body (1), wherein a bottom plate (2) is provided on the lower surface of the battery pack body (1), a surrounding plate (3) is fixedly connected to the upper surface of the bottom plate (2), two heat exchange tubes (4) are symmetrically fixedly connected to the bottom of the inner wall of the surrounding plate (3), the right end of the heat exchange tube (4) protrudes out of the outside of the surrounding plate (3) and is connected to a cold water tank (5), a refrigeration plate (13) is installed on the right side wall of the cold water tank (5), the left end of the heat exchange tube (4) protrudes out of the outside of the surrounding plate (3) and is connected to a connecting pipe (6), and the upper surface of the heat exchange tube (4) is A heat-conducting rod (7) is evenly and fixedly connected, the bottom end of the heat-conducting rod (7) extends into the interior of the heat exchange tube (4), the top end of the heat-conducting rod (7) is fixedly connected to a heat transfer plate (8), a fixed plate (9) is fixedly connected to the left side of the front surface of the enclosure (3), a pump body (10) is installed on the upper surface of the fixed plate (9), a pumping pipe (11) is connected between one end of the liquid inlet of the pump body (10) and the front surface of the connecting pipe (6), and a return pipe (12) is connected between one end of the liquid outlet of the pump body (10) and the top of the front surface of the cold water tank (5).

2. The battery pack cooling structure according to claim 1, characterized in that: The right side wall of the bottom plate (2) is fixedly connected to a transverse plate (14), and the bottom of the cold water tank (5) is fixedly connected to the upper surface of the transverse plate (14).

3. The battery pack cooling structure according to claim 2, characterized in that: The front side of the upper surface of the cold water tank (5) is connected to a water supply pipe (15).

4. The battery pack cooling structure according to claim 3, characterized in that: The top of the outer wall of the water adding pipe (15) is threadedly connected with a sealing cap (16).

5. The battery pack cooling structure according to claim 4, characterized in that: A through groove (17) is provided on the right side of the front surface of the cold water tank (5), and a glass plate (18) is fixedly connected to the inner side wall of the through groove (17).

6. The battery pack cooling structure according to claim 5, characterized in that: Four mounting blocks (19) are symmetrically fixedly connected to the outer side wall of the bottom plate (2).

7. The battery pack cooling structure according to claim 6, characterized in that: The lower surface of the mounting block (19) is provided with a mounting hole (20).

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