High-overload-resistant lithium battery pack

Abstract

The utility model relates to the technical field of lithium battery packs, and discloses a high-overload-resistant lithium battery pack which comprises a battery box body, the bottom of the battery box body is detachably connected with a bottom plate, a cooling assembly is arranged in the battery box body and comprises a flame-retardant box body, the top of the flame-retardant box body is fixedly connected with a supporting cross beam, and the supporting cross beam is fixedly connected with the bottom plate. An embedding groove is formed in the right inner wall of the flame-retardant box body, a plurality of battery monomers are uniformly arranged in the flame-retardant box body, and an upper water tank is arranged at the top of the flame-retardant box body. According to the utility model, through the arrangement of the upper water tank, the lower water tank, the vertical heat conduction shell, the transverse heat conduction shell and the heat dissipation fan group, heat on the battery monomers can be conducted and absorbed, and is dissipated by the heat dissipation fan group, so that the overall high overload resistance can be improved, the battery pack is very durable in use, the temperature of the battery monomers is prevented from being too high, and the use safety is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to lithium battery pack technical field especially relates to a high overload resistance lithium battery pack. BACKGROUND

[0002] Lithium battery is a kind of lithium metal or lithium alloy as negative electrode material, using non-aqueous electrolyte solution battery.Lithium battery pack overload refers to the current or power that battery pack bears in the working process exceeds its designed maximum carrying capacity.Lithium battery pack overload, a large amount of heat will be generated, if unable to cool in time, lithium battery pack self-ignition phenomenon occurs, it is very dangerous to use.

[0003] In the prior art, lithium battery pack includes battery monomer, protective shell, circuit element, lack of timely cooling structural component, lithium battery pack does not have the ability of high overload resistance, it is not durable and safe to use. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcomings in the prior art and provides a high overload resistance lithium battery pack, through the upper water tank, lower water tank, vertical heat conduction shell, horizontal heat conduction shell and heat dissipation fan group, the heat on the battery monomer can be conducted and absorbed, and dissipated by the heat dissipation fan group, the overall high overload resistance can be improved, it is very durable to use, the temperature of battery monomer is avoided to be too high, and the safety in use is increased.

[0005] To achieve the above object, the utility model provides the following technical scheme: a high overload resistance lithium battery pack, including battery box, the bottom of battery box is detachably connected with bottom plate, the battery box is equipped with cooling assembly, cooling assembly includes fire -retardant box, the top of fire -retardant box is fixedly connected with support crossbeam, the right inner wall of fire -retardant box is equipped with embedding groove, the even multiple battery monomers are equipped in fire -retardant box, the top of fire -retardant box is equipped with upper water tank, the lower part of upper water tank is fixedly connected with vertical heat conduction shell, vertical heat conduction shell is located between adjacent battery monomer, the left part of fire -retardant box is equipped with lower water tank, lower water tank is fixedly connected with horizontal heat conduction shell, horizontal heat conduction shell is adapted to embedding groove, lower water tank and upper water tank are connected by pipe joint, the rear portion of battery box is installed with heat dissipation fan group.Through the upper water tank, lower water tank, vertical heat conduction shell, horizontal heat conduction shell and heat dissipation fan group, the heat on the battery monomer can be conducted and absorbed, and dissipated by the heat dissipation fan group, the overall high overload resistance can be improved, it is very durable to use, the temperature of battery monomer is avoided to be too high, and the safety in use is increased.

[0006] Further, the top of battery box is equipped with wire connector for connection in use.

[0007] Further, the bottom plate and the battery box are connected by screws.

[0008] Further, the upper water tank and the vertical heat conduction shell are in communication, and are filled with cooling water, and the upper water tank is provided with a heat conduction space.

[0009] Further, the lower water tank and the horizontal heat conduction shell are in communication, and are filled with cooling water, and the lower water tank is provided with a heat conduction space.

[0010] Further, the support beam and the horizontal heat conduction shell are arranged in parallel.

[0011] Further, the vertical heat conduction shell and the support beam are arranged perpendicularly.

[0012] Further, the heat dissipation fan group is L-shaped and corresponds to the positions of the upper water tank and the lower water tank.

[0013] The utility model has the advantages of the following beneficial effects:

[0014] The upper water tank, the lower water tank, the vertical heat conduction shell and the horizontal heat conduction shell are arranged, and the heat dissipation fan group can conduct and absorb the heat on the battery monomer and dissipate the heat, so that the high overload resistance of the whole is improved, the use is very durable, the temperature of the battery monomer is prevented from being too high, and the safety in use is improved. DRAWINGS

[0015] Figure 1 The utility model discloses a structure schematic diagram of the utility model;

[0016] Figure 2 The utility model discloses a structure schematic diagram of the utility model in the split state;

[0017] Figure 3 The utility model discloses a structure schematic diagram of the cooling assembly of the utility model;

[0018] Figure 4 The utility model discloses a structure schematic diagram of the fire -retardant box part of the utility model;

[0019] Figure 5 The utility model discloses a structure schematic diagram of the battery box of the utility model.

[0020] Legend:

[0021] 1, battery box; 101, heat dissipation fan group; 2, bottom plate; 3, cooling assembly; 301, fire -retardant box; 3011, embedding groove; 302, support beam; 303, battery monomer; 304, vertical heat conduction shell; 305, upper water tank; 306, lower water tank; 307, horizontal heat conduction shell. Specific implementation

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0023] With reference to Figures 1-5 The utility model provides an embodiment: a kind of high overload resistant lithium battery pack, including battery box 1, the top of battery box 1 is equipped with the wire joint for connecting use, wire joint is used for overall connection use, the bottom of battery box 1 is detachably connected with bottom plate 2, bottom plate 2 is connected with battery box 1 by screw each other;

[0024] Cooling assembly 3 is equipped in battery box 1, cooling assembly 3 includes flame -retardant box 301, the top of flame -retardant box 301 is fixedly connected with support crossbeam 302, support crossbeam 302 and horizontal heat conduction shell 307 are mutually parallel and arranged, the right inner wall of flame -retardant box 301 is equipped with embedded groove 3011, multiple battery monomers 303 are evenly equipped in flame -retardant box 301, the top of flame -retardant box 301 is equipped with upper tank 305, upper tank 305 and vertical heat conduction shell 304 are interconnected, and inside is equipped with cooling water, upper tank 305 is reserved with heat conduction space, the lower part of upper tank 305 is fixedly connected with vertical heat conduction shell 304, vertical heat conduction shell 304 is arranged perpendicularly with support crossbeam 302, vertical heat conduction shell 304 is located between adjacent battery monomers 303, the left part of flame -retardant box 301 is equipped with lower tank 306, lower tank 306 and horizontal heat conduction shell 307 are interconnected, and inside is equipped with cooling water, lower tank 306 is reserved with heat conduction space, lower tank 306 is fixedly connected with horizontal heat conduction shell 307, horizontal heat conduction shell 307 is adapted to embedded groove 3011, lower tank 306 and upper tank 305 are connected by pipe joint, the rear portion of battery box 1 is installed with radiating fan group 101, radiating fan group 101 is L-shaped, and with the position of upper tank 305, lower tank 306 each other corresponds.

[0025] With reference to Figure 3 When battery monomer 303 overloads generates heat during heat dissipation operation, the heat of battery monomer 303 is conducted to vertical heat conduction shell 304 and horizontal heat conduction shell 307, and is absorbed by cooling water in vertical heat conduction shell 304 and horizontal heat conduction shell 307, and when radiating fan group 101 works, the heat at upper tank 305 and lower tank 306 can be discharged, to avoid that the temperature of cooling water in upper tank 305 and lower tank 306 is too high to absorb the heat of battery monomer 303, improve the overall high overload resistant performance.

[0026] Through setting the upper water tank 305, the lower water tank 306, the vertical heat conduction shell 304, the horizontal heat conduction shell 307 and the heat dissipation fan group 101, the heat on the battery monomer 303 can be conducted and absorbed, and is dissipated by the heat dissipation fan group 101, the overall high overload capacity can be improved, the use is very durable, the temperature of the battery monomer 303 is avoided to be too high, and the safety of use is increased.

[0027] Working principle: when the battery monomer 303 is overloaded to generate heat, the heat of the battery monomer 303 is conducted to the vertical heat conduction shell 304 and the horizontal heat conduction shell 307, and is absorbed by the cooling water in the vertical heat conduction shell 304 and the horizontal heat conduction shell 307, and when the heat dissipation fan group 101 works, the heat at the upper water tank 305 and the lower water tank 306 can be discharged, the temperature of the cooling water in the upper water tank 305 and the lower water tank 306 is avoided to be too high, the heat of the battery monomer 303 cannot be absorbed, the overall high overload performance is improved. Finally, it should be noted that the above only for the preferred embodiments of the present application and does not limit the present application, although the present application is described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solution recorded in the foregoing embodiments can be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A high overload resistant lithium battery pack comprising a battery case (1), characterized in that: The bottom of the battery box (1) is detachably connected with a bottom plate (2), the battery box (1) is internally provided with a cooling assembly (3), the cooling assembly (3) comprises a fireproof box (301), the top of the fireproof box (301) is fixedly connected with a supporting cross beam (302), the right inner wall of the fireproof box (301) is provided with an embedded groove (3011), the fireproof box (301) is uniformly provided with a plurality of battery monomers (303) therein, the top of the fireproof box (301) is provided with an upper water tank (305), the lower part of the upper water tank (305) is fixedly connected with a vertical heat conduction shell (304), the vertical heat conduction shell (304) is located between adjacent battery monomers (303), the left part of the fireproof box (301) is provided with a lower water tank (306), the upper part of the lower water tank (306) is fixedly connected with a horizontal heat conduction shell (307), the horizontal heat conduction shell (307) is matched with the embedded groove (3011), the lower water tank (306) and the upper water tank (305) are connected through a pipe joint, and the rear part of the battery box (1) is mounted with a heat dissipation fan group (101).

2. The high-overload-resistant lithium battery pack of claim 1, wherein: The top of the battery box (1) is provided with a wire joint for connection in use.

3. The high-overload-resistant lithium battery pack of claim 1, wherein: The bottom plate (2) and the battery box (1) are connected with each other through screws.

4. The high-overload-resistant lithium battery pack of claim 1, wherein: The upper water tank (305) and the vertical heat conduction shell (304) are in communication with each other and internally contain cooling water, and the upper water tank (305) is reserved with a heat conduction space.

5. The high overcharge resistant lithium battery of claim 1, wherein: The lower water tank (306) and the horizontal heat conduction shell (307) are in communication with each other and internally contain cooling water, and the lower water tank (306) is reserved with a heat conduction space.

6. The high-overload-resistant lithium battery pack of claim 1, wherein: The supporting cross beam (302) and the horizontal heat conduction shell (307) are arranged in parallel with each other.

7. The high-overload-resistant lithium battery pack of claim 1, wherein: The vertical heat conduction shell (304) and the supporting cross beam (302) are arranged perpendicularly to each other.

8. The high-overload-resistant lithium battery pack of claim 1, wherein: The heat dissipation fan group (101) is in L shape and corresponds to the positions of the upper water tank (305) and the lower water tank (306).

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