Cooling device for power lithium battery module

Abstract

The utility model discloses a power lithium battery module cooling device which comprises a power lithium battery module body, a first heat conducting plate and a second heat conducting plate are arranged in the power lithium battery module body, and a plurality of battery cell mounting holes are formed in the first heat conducting plate and the second heat conducting plate. Connecting pipes are mounted in the first heat conducting plate and the second heat conducting plate, notches are formed in the first heat conducting plate and the second heat conducting plate, the connecting pipes penetrate through the notches respectively, a first liquid storage tank and a second liquid storage tank are communicated between the upper connecting pipe and the lower connecting pipe, and grooves are formed in the two sides of the power lithium battery module body. According to the power lithium battery module, the power lithium battery module body can be further cooled through matched use of the heat conducting plate and the connecting pipe, and heat dissipation and heat locking can be achieved in the device through matched use of the groove and the rotating plate.

Description

Technical Field

[0001] The utility model relates to the technical field of battery modules, in particular to a cooling device for a power lithium battery module. Background Art

[0002] Power lithium batteries replace traditional batteries and have the functions of charging and discharging. When the power lithium battery module works at high temperature, the continuous temperature rise will cause safety hazards such as thermal runaway in the battery, so it needs to be cooled.

[0003] At present, the power lithium batteries of pure electric vehicles and hybrid electric vehicles are mainly cooled by air cooling. However, air cooling is not taken seriously due to its shortcomings such as poor cooling effect and large temperature difference. When used for a long time, the temperature is likely to rise, which will cause unnecessary trouble during use. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a power lithium battery module cooling device.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A power lithium battery module cooling device includes a power lithium battery module body, wherein a first heat conducting plate and a second heat conducting plate are provided inside the power lithium battery module body, a plurality of battery cell mounting holes are provided inside the first heat conducting plate and the second heat conducting plate, connecting pipes are installed inside the first heat conducting plate and the second heat conducting plate, notches are provided inside the first heat conducting plate and the second heat conducting plate, and the connecting pipes pass through the notches respectively, and a first liquid storage tank and a second liquid storage tank are connected between the upper and lower connecting pipes.

[0007] As a further solution of the present invention, grooves are provided on both sides of the power lithium battery module body.

[0008] As a further solution of the present invention, a rotating shaft is movably connected in the groove, and a rotating plate is fixedly connected to the outer side of the rotating shaft.

[0009] As a further solution of the present invention, the rotating plate is located inside the groove.

[0010] As a further solution of the present invention, one side of the two second liquid storage tanks is respectively connected with a liquid inlet pipe and a liquid outlet pipe.

[0011] As a further solution of the present invention, one end of the rotating shaft passes through the power lithium battery module body and is fixedly connected to a knob.

[0012] The beneficial effects of the utility model are:

[0013] 1. The heat conducting plate and the connecting pipe are used together to further cool the power lithium battery module body, avoiding the safety hazard caused by the high temperature of the power lithium battery module body when used in hot weather, and improving the cooling effect of the device.

[0014] 2. By setting the rotating plate, the rotating plate rotates to cover the groove. When the temperature is low, the heat loss inside the device can be reduced, thereby improving the flexibility of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of a power lithium battery module cooling device proposed by the present invention;

[0016] Figure 2 This is a schematic cross-sectional view of the housing of a power lithium battery module cooling device proposed in the present invention;

[0017] Figure 3 This is a partially enlarged structural schematic diagram of a power lithium battery module cooling device proposed by the present invention.

[0018] In the figure: 1. First liquid storage tank; 2. Liquid inlet pipe; 3. Liquid outlet pipe; 4. Second liquid storage tank; 5. Battery cell mounting hole; 6. First heat conduction plate; 7. Groove; 8. Power lithium battery module body; 9. Notch; 10. Rotating plate; 11. Rotating shaft; 12. Knob; 13. Second heat conduction plate; 14. Connecting pipe. DETAILED DESCRIPTION

[0019] It should be noted that the terms "first", "second", etc. in the description and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence, so that the embodiments of this application described here, based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of this application.

[0020] Reference Figure 1-Figure 3, a power lithium battery module cooling device includes a power lithium battery module body 8, a first heat conducting plate 6 and a second heat conducting plate 13 are provided inside the power lithium battery module body 8, the first heat conducting plate 6 and the second heat conducting plate 13 absorb the heat in the power lithium battery module body 8, a plurality of battery cell mounting holes 5 are opened inside the first heat conducting plate 6 and the second heat conducting plate 13, and connecting pipes 14 are installed inside the first heat conducting plate 6 and the second heat conducting plate 13, and slots 9 are opened inside the first heat conducting plate 6 and the second heat conducting plate 13, and the connecting pipes 14 pass through the slots 9 respectively, and the upper and lower connecting pipes 14 are connected with the first liquid storage tank 1 and the second liquid storage tank 4, and the coolant enters the liquid inlet pipe 2, so that it enters the connecting pipe 14 through the first liquid storage tank 1, and then the heat on the first heat conducting plate 6 and the second heat conducting plate 13 is taken away by the coolant, and the coolant circulates to achieve cooling of the power lithium battery module body 8.

[0021] In the present utility model, it should be noted that grooves 7 are provided on both sides of the power lithium battery module body 8, so that the heat in the middle position of the power lithium battery module body 8 can be dissipated. A rotating shaft 11 is rotatably connected in the groove 7, and a rotating plate 10 is fixed to the outside of the rotating shaft 11 by bolts. The rotating plate 10 is located inside the groove 7. Rotating the rotating shaft 11 rotates the rotating plate 10 to cover the groove 7. When the temperature is low, the heat loss inside the device can be reduced. One side of the two second liquid storage tanks 4 is respectively connected to the liquid inlet pipe 2 and the liquid outlet pipe 3, and the container containing the coolant and installing the power component is connected to the liquid inlet pipe 2 and the liquid outlet pipe 3. One end of the rotating shaft 11 passes through the power lithium battery module body 8 and is welded with a knob 12 to facilitate the staff to rotate the rotating shaft 11.

[0022] Working principle: When in use, the container containing the coolant and installing the power component is connected to the liquid inlet pipe 2 and the liquid outlet pipe 3, the first heat conducting plate 6 and the second heat conducting plate 13 absorb the heat in the power lithium battery module body 8, and then the coolant in the external container enters the liquid inlet pipe 2, passes through the first liquid storage tank 1 and enters the connecting pipe 14, and then the heat on the first heat conducting plate 6 and the second heat conducting plate 13 is taken away by the coolant, and the coolant circulates.

[0023] The present invention has been described through the above embodiments. Those skilled in the art will understand that the present invention is not limited to the above embodiments, and more modifications can be made according to the teachings of the present invention. These modifications all fall within the scope of protection required by the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A power lithium battery module cooling device, comprising a power lithium battery module body (8), characterized in that: A first heat conducting plate (6) and a second heat conducting plate (13) are provided inside the power lithium battery module body (8); a plurality of battery cell mounting holes (5) are provided inside the first heat conducting plate (6) and the second heat conducting plate (13); connecting pipes (14) are installed inside the first heat conducting plate (6) and the second heat conducting plate (13); slots (9) are provided inside the first heat conducting plate (6) and the second heat conducting plate (13); and the connecting pipes (14) pass through the slots (9) respectively; and a first liquid storage tank (1) and a second liquid storage tank (4) are connected between the upper and lower connecting pipes (14).

2. A power lithium battery module cooling device according to claim 1, characterized in that: Grooves (7) are provided on both sides of the power lithium battery module body (8).

3. A power lithium battery module cooling device according to claim 2, characterized in that: A rotating shaft (11) is movably connected in the groove (7), and a rotating plate (10) is fixedly connected to the outer side of the rotating shaft (11).

4. A power lithium battery module cooling device according to claim 3, characterized in that: The rotating plate (10) is located inside the groove (7).

5. The power lithium battery module cooling device according to claim 1, characterized in that: One side of the two second liquid storage tanks (4) is respectively connected to a liquid inlet pipe (2) and a liquid outlet pipe (3).

6. The power lithium battery module cooling device according to claim 3, characterized in that: One end of the rotating shaft (11) passes through the power lithium battery module body (8) and is fixedly connected to a knob (12).

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