CN219575740U

CN219575740U - Overheat-proof cooling device for energy storage lithium battery

Info

Publication number: CN219575740U
Application number: CN202223544414.XU
Authority: CN
Inventors: 李双江; 王力; 张琛亚; 赵惠; 鞠文龙
Original assignee: Jiangyin Zhongding Energy Saving Fluid Technology Co ltd
Current assignee: Jiangyin Zhongding Energy Saving Fluid Technology Co ltd
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-08-22
Anticipated expiration: 2032-12-27

Abstract

The utility model is applicable to the technical field of lithium batteries, and provides an overheat protection cooling device for an energy storage lithium battery, which comprises a battery shell and a plurality of battery components which are spliced and arranged in the battery shell; the battery shell is internally provided with a partition plate; each partition plate reinforces the inside of the battery shell to be divided into a plurality of battery cavities; a ventilation cavity is formed on the side surface of the partition plate; mounting grooves are symmetrically formed on two sides of the inner wall of the ventilation cavity; a heat conducting piece is arranged between the two mounting grooves; the battery cavity is connected with the adjacent ventilation cavity through a heat conducting piece; one end of the ventilation cavity is fixedly connected with a conical fan cover; the conical fan housing port is provided with a cooling fan, the device transmits generated heat to each cooling fin through the heat conducting plate, and the cooling fan is started to take away the heat on the cooling fins, so that the temperature inside the battery cavity is reduced, and the battery assembly is prevented from being in an overheated environment; through all establishing the heat dissipation arch on the fin, increased the radiating area of fin, further improved the heat dispersion of device.

Description

Overheat-proof cooling device for energy storage lithium battery

Technical Field

The utility model relates to the technical field of lithium batteries, in particular to an overheat-preventing cooling device for an energy storage lithium battery.

Background

The energy storage lithium battery has become a sophisticated industry in the energy storage field due to the advantages of long service life, environmental protection and the like, and is widely used in important industries such as electric automobiles, energy storage devices and the like. Through development for many years, along with the gradual improvement of quality and process, the service life and durability of the battery are improved very high, and long-term operation proves that the overall operation quality of the lithium battery is related to the quality of single batteries, is closely related to the assembly process and structure of grouped lithium batteries, effectively improves the structural quality of the whole battery pack, and is a very important link for the development of the lithium battery.

The traditional battery pack design basically has passive heat dissipation, active air cooling and active liquid cooling, and the passive heat dissipation effect is poor; the active air cooling can influence the waterproof performance of the battery pack, and in the long-term use process, dust sucked by the fan can be deposited in the battery box, dust attached to the surface of the battery can influence the heat dissipation of the battery instead, and the battery with overhigh temperature is inconsistent with the battery with slightly low temperature in charge and discharge rate, so that the quality of the battery is greatly influenced.

Disclosure of Invention

Aiming at the defects existing in the prior art, the utility model aims to provide a device for transmitting the generated heat to each radiating fin through a heat-conducting plate, and taking away the heat on the radiating fin by starting a radiating fan, so as to reduce the temperature in a battery cavity and prevent a battery assembly from being in an overheated environment; through all establishing the heat dissipation arch on the fin, increased the radiating area of fin, further improved the overheat cooling device is prevented to energy storage lithium cell of heat dissipation ability.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

an overheat-preventing cooling device for an energy storage lithium battery comprises a battery shell and a plurality of battery components which are inserted and arranged in the battery shell; the battery shell is internally provided with a partition plate; each partition plate reinforces the inside of the battery shell to be divided into a plurality of battery cavities; a ventilation cavity is formed in the side face of the partition plate; mounting grooves are symmetrically formed in two sides of the inner wall of the ventilation cavity; a heat conducting piece is arranged between the two mounting grooves; the battery cavity is connected with the adjacent ventilation cavity through a heat conducting piece; one end of the ventilation cavity is fixedly connected with a conical fan cover; and a cooling fan is arranged at the port of the conical fan housing.

The utility model is further provided with: the heat conducting piece comprises two groups of heat conducting plates which are oppositely arranged; a radiating fin is arranged between the two heat conducting plates; and heat dissipation bulges are arranged on both surfaces of the heat dissipation fin.

The utility model is further provided with: screw holes are formed in the surface of the heat conducting plate; positioning holes are symmetrically formed in the surface of the partition plate; the positioning hole is inserted with a fastening screw; the fastening screw is in running fit with the corresponding screw hole thread.

The utility model is further provided with: the inner bottom surface of the battery cavity is provided with a cross plugboard; the side surface of the battery cavity is provided with a wire outlet pipe in a penetrating way; screw rods are fixedly connected to the surfaces of the two outermost partition plates; the screw is provided with a fastening nut in a threaded rotating way.

The utility model is further provided with: the battery assembly comprises a battery cell rack; the battery cell rack is internally provided with energy storage lithium battery monomers; an upper cover plate and a lower supporting plate are respectively arranged at two ends of the battery cell frame; the surface of the upper cover plate is provided with a slot; the bottom surface of the lower supporting plate is provided with a cross groove; the cross plugboard is in plug-in fit with the cross groove; a barrier strip is inserted and matched between the slots; mounting holes are symmetrically formed in the surface of the barrier strip; the mounting hole is in plug-in fit with the screw rod.

The utility model has the advantages that:

1. in the working process of the battery assembly, generated heat is transmitted to each radiating fin through the heat conducting plate, and the heat on the radiating fins is taken away by starting the radiating fan, so that the temperature in the battery cavity is reduced, and the battery assembly is prevented from being in an overheated environment; through all establishing the heat dissipation arch on the fin, increased the radiating area of fin, further improved the heat dispersion of device.

2. According to the utility model, the two groups of heat conducting plates on the heat conducting piece are arranged in the corresponding mounting grooves, so that the battery cavity and the ventilation cavity are sealed and conduct heat, the waterproof performance of the battery pack is not affected, and in the long-term use process, dust sucked by the heat radiating fan is only deposited in the ventilation cavity, and cannot gather in the battery cavity, so that the dust is prevented from adhering to the surface of the battery and affecting the heat radiation of the battery.

Drawings

FIG. 1 is a schematic diagram of an overheat protection cooling device for an energy storage lithium battery;

fig. 2 is a schematic view of the structure of the battery case of the present utility model;

FIG. 3 is a schematic diagram of a top view of a battery case according to the present utility model;

FIG. 4 is a schematic view of another angle of the battery case of the present utility model;

fig. 5 is a schematic view of the structure of the battery assembly of the present utility model;

fig. 6 is a schematic structural view of a heat conductive member according to the present utility model;

FIG. 7 is a schematic view of a barrier strip according to the present utility model;

in the figure: 1. a battery case; 2. a battery assembly; 3. a partition plate; 4. a battery cavity; 5. a ventilation chamber; 6. a mounting groove; 7. a heat conductive member; 8. a conical fan housing; 9. a heat radiation fan; 10. a heat conductive plate; 11. a heat sink; 12. a heat radiation protrusion; 13. a screw hole; 14. positioning holes; 15. a cross plugboard; 16. a wire outlet pipe; 17. a screw; 18. a fastening nut; 19. a cell holder; 20. an energy storage lithium battery cell; 21. an upper cover plate; 22. a lower supporting plate; 23. a cross groove; 24. a slot; 25. a barrier strip; 26. and (5) mounting holes.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

It is noted that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs unless otherwise indicated.

In the present utility model, unless otherwise indicated, the terms "upper" and "lower" are used generally with respect to the directions shown in the drawings, or with respect to the vertical, vertical or gravitational directions; also, for ease of understanding and description, "left, right" is generally directed to the left, right as shown in the drawings; "inner and outer" refer to inner and outer relative to the outline of the components themselves, but the above-described orientation terms are not intended to limit the present utility model.

Example 1

Referring to fig. 1-7, the first embodiment provides the following technical solutions:

the overheat protection cooling device comprises a battery shell 1 and a plurality of battery components 2 which are inserted and arranged in the battery shell 1; the battery shell 1 is internally provided with a partition plate 3; each partition plate 3 reinforces the inside of the battery shell 1 to be divided into a plurality of battery cavities 4; a ventilation cavity 5 is arranged on the side surface of the partition plate 3; mounting grooves 6 are symmetrically formed on two sides of the inner wall of the ventilation cavity 5; a heat conducting piece 7 is arranged between the two mounting grooves 6; the battery cavity 4 is connected with the adjacent ventilation cavity 5 through a heat conducting piece 7; one end of the ventilation cavity 5 is fixedly connected with a conical fan cover 8; the port of the conical fan housing 8 is provided with a cooling fan 9.

The specific implementation manner of the first embodiment is as follows: each heat radiation fan 9 is connected in series with each other and is electrically connected to the corresponding battery assembly 2 through a wire pipe 16; during the working process of the battery assembly 2, the generated heat is transferred to each radiating fin 11 through the heat conducting plate 10, and the heat on the radiating fins 11 is taken away by starting the radiating fan 9, so that the temperature inside the battery cavity 4 is reduced, and the battery assembly 2 is prevented from being in an overheated environment; through installing two sets of heat conduction boards 10 on the heat conduction piece 7 in the mounting groove 6 that corresponds, realize battery chamber 4 and ventilation chamber 5 seal heat conduction, can not influence group battery 2 waterproof nature, and in long-term use, the absorptive dust of radiator fan 9 can only deposit in ventilation chamber 5 inside, can not gather battery chamber 4, avoids the dust to adhere to at battery assembly 2 surface, influences battery assembly 2 heat dissipation.

Example two

Referring to fig. 6, the second embodiment provides the following technical solutions on the premise of the first embodiment:

the heat conducting member 7 includes two sets of heat conducting plates 10 arranged opposite to each other; a heat radiating fin 11 is arranged between the two heat conducting plates 10; the two surfaces of the radiating fin 11 are provided with radiating bulges 12; screw holes 13 are formed on the surface of the heat conducting plate 10; positioning holes 14 are symmetrically formed in the surface of the partition plate 3; the positioning hole 14 is inserted with a fastening screw; the fastening screw is in threaded rotation fit with the corresponding screw hole 13.

The specific implementation manner of the second embodiment is as follows: the installation of the heat conductive member 7 is achieved by inserting the two heat conductive plates 10 into the corresponding installation grooves 6 and fixing the heat conductive plates 10 together by fastening bolts; by arranging the heat radiation protrusions 12 on both surfaces of the heat radiation fin 11, the heat radiation area of the heat radiation fin 11 is increased, and the heat radiation capability is further improved.

Example III

Referring to fig. 1, fig. 2 and fig. 5-7, the third embodiment provides the following technical solutions on the premise of the first embodiment:

the inner bottom surface of the battery cavity 4 is provided with a cross plugboard 15; a wire outlet pipe 16 is arranged on the side surface of the battery cavity 4 in a penetrating way; the surfaces of the two outermost partition plates 3 are fixedly connected with screw rods 17; the screw 17 is provided with a fastening nut 18 in a threaded rotating way; the battery assembly 2 includes a cell holder 19; the battery cell rack 19 is internally provided with energy storage lithium battery cells 20; the two ends of the cell frame 19 are respectively provided with an upper cover plate 21 and a lower supporting plate 22; the surface of the upper cover plate 21 is provided with a slot 24; the bottom surface of the lower supporting plate 22 is provided with a cross groove 23; the cross plugboard 15 is in plug-in fit with the cross groove 23; a barrier strip 25 is inserted and matched between the slots 24; mounting holes 26 are symmetrically formed in the surface of the barrier strip 25; the mounting hole 26 is in plug-in fit with the screw 17.

The third embodiment of the present utility model is as follows: the reinforced battery assembly 2 is inserted and placed into the battery cavity 4, so that the cross plugboard 15 is in insertion fit with the cross groove 23, and the stability of the battery assembly 2 is improved; the fixing of the respective sets of upper cover plates 21 is achieved by inserting the bars 25 into the respective sets of slots 24 and tightening the fastening nuts 18.

It will be apparent that the embodiments described above are merely some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present utility model and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

The above description is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims

1. An overheat-preventing cooling device for an energy storage lithium battery comprises a battery shell (1) and a plurality of battery components (2) which are inserted and arranged in the battery shell (1); the method is characterized in that:

the battery shell (1) is internally provided with a partition plate (3); the inside of each partition plate (3) is partitioned into a plurality of battery cavities (4) by reinforcing the battery shell (1);

a ventilation cavity (5) is formed in the side face of the partition plate (3); mounting grooves (6) are symmetrically formed in two sides of the inner wall of the ventilation cavity (5); a heat conducting piece (7) is arranged between the two mounting grooves (6); the battery cavity (4) is connected with the adjacent ventilation cavity (5) through a heat conducting piece (7); one end of the ventilation cavity (5) is fixedly connected with a conical fan cover (8); and a cooling fan (9) is arranged at the port of the conical fan housing (8).

2. The overheat protection cooling device for the energy storage lithium battery of claim 1, wherein: the heat conducting piece (7) comprises two groups of heat conducting plates (10) which are oppositely arranged; a radiating fin (11) is arranged between the two heat conducting plates (10); and heat dissipation bulges (12) are arranged on two surfaces of the heat dissipation fin (11).

3. The overheat protection cooling device for the energy storage lithium battery of claim 2, wherein: screw holes (13) are formed in the surface of the heat conducting plate (10); positioning holes (14) are symmetrically formed in the surface of the partition plate (3); the positioning holes (14) are inserted with fastening screws; the fastening screw is in threaded rotation fit with the corresponding screw hole (13).

4. The overheat protection cooling device for the energy storage lithium battery of claim 1, wherein: the inner bottom surface of the battery cavity (4) is provided with a cross plugboard (15); a wire outlet pipe (16) is arranged on the side surface of the battery cavity (4) in a penetrating way; screw rods (17) are fixedly connected to the surfaces of the two outermost partition plates (3); the screw (17) is provided with a fastening nut (18) in a threaded rotating way.

5. The overheat protection cooling device for the energy storage lithium battery of claim 4, wherein: the battery assembly (2) comprises a cell holder (19); an energy storage lithium battery monomer (20) is arranged in the battery cell frame (19); an upper cover plate (21) and a lower supporting plate (22) are respectively arranged at two ends of the battery cell frame (19); the surface of the upper cover plate (21) is provided with a slot (24); the bottom surface of the lower supporting plate (22) is provided with a cross groove (23); the cross plugboard (15) is in plug-in fit with the cross groove (23); a barrier strip (25) is inserted and matched between the slots (24); mounting holes (26) are symmetrically formed in the surface of the barrier strip (25); the mounting hole (26) is in plug-in fit with the screw (17).