CN218039638U

CN218039638U - Explosion-proof type lithium cell pack package

Info

Publication number: CN218039638U
Application number: CN202222205705.XU
Authority: CN
Inventors: 王峰
Original assignee: Anhui Zhongji Investment Energy Technology Development Co ltd
Current assignee: Anhui Zhongji Investment New Energy Co ltd
Priority date: 2022-08-22
Filing date: 2022-08-22
Publication date: 2022-12-13
Anticipated expiration: 2032-08-22

Abstract

The utility model belongs to the technical field of the battery technique and specifically relates to an explosion-proof type lithium cell pack package, fixed surface installs two first curb plates that correspond the setting on the bottom plate, fixed mounting has the second curb plate between two first curb plates, a protecting cylinder is constituteed jointly to two first curb plates and two second curb plates, protecting cylinder top fixed mounting has the roof, a plurality of compartment frame of having arranged along the straight line direction in the protecting cylinder, be provided with a plurality of electricity core between per two adjacent compartment frames, every electricity core all overlaps outward and is equipped with a heat conduction cover, every heat conduction cover is equallyd divide and is do not be connected with the compartment frame of both sides through a connecting piece, the compartment frame includes the horizontal pole, insert the strip. The utility model discloses a set up and separate frame, heat conduction sleeve etc for the battery package has the better radiating effect of higher intensity, thereby greatly reduces the probability that the battery package explodes.

Description

Explosion-proof type lithium cell pack package

Technical Field

The utility model relates to the technical field of batteries, especially, relate to an explosion-proof type lithium cell pack package.

Background

At present, the working temperature range of a lithium battery pack is wide at-20-60 ℃, under the high-temperature condition, if a proper heat dissipation scheme is not available, the temperature at each position in the battery pack is greatly different, the consistency of battery monomers is influenced, and a series of subsequent problems are caused, wherein the battery is over-charged to cause thermal runaway, so that the lithium battery pack is exploded, in addition, the integral strength of the existing lithium battery pack is not high enough, the battery pack is easily damaged under the action of external force, and further, the electrolyte in the battery pack is leaked to cause explosion.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that has heat dissipation, battery package intensity to remain to improve among the prior art, and the explosion-proof type lithium cell pack that proposes wraps.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an explosion-proof type lithium cell pack package, comprises a base plate, fixed surface installs two first curb plates that correspond the setting on the bottom plate, two fixed mounting has the second curb plate, two between the first curb plate a protective barrel is constituteed jointly to first curb plate and two second curb plates, protective barrel top fixed mounting has the roof, a plurality of bank note frame of having arranged along the straight line direction in the protective barrel, every two are adjacent be provided with a plurality of electric core, every between the bank note frame electric core all overlaps outward and is equipped with a heat conduction cover, every the heat conduction cover is equallyd divide and is do not connected with the bank note frame of both sides through a connecting piece, the bank note frame includes horizontal pole, cutting, two through the horizontal pole fixed connection that a plurality of is parallel to each other between the cutting, set up the slot corresponding with the cutting on the inner wall of protective barrel, the cutting all inserts and establish in the slot that corresponds, a plurality of jacks corresponding with the horizontal pole have been seted up on the connecting piece, the connecting piece is established on the horizontal pole of adjacent bank note frame through the jack cover.

Preferably, the heat-conducting sleeve and the connecting piece are integrally manufactured heat-conducting silica gel pieces.

Preferably, the first side plate and the second side plate are made of aluminum alloy plates.

Preferably, a plurality of heat dissipation holes are formed in the surface of the protection cylinder.

Preferably, a heating module and a heat dissipation module are arranged in the protection cylinder, the heating module is used for heating the electric core, and the heat dissipation module is used for assisting the electric core to dissipate heat.

The utility model provides an explosion-proof type lithium cell pack package, beneficial effect lies in: according to the battery pack, the plurality of separating frames for separating the battery cells are arranged in the battery pack, so that the structural strength of the whole battery pack can be greatly improved by using the cross rods in the separating frames, the battery pack is difficult to deform and damage under external force impact, the battery cells are better protected, and explosion caused by damage of the battery pack is prevented; all the cover is equipped with heat conduction silica gel cover on the electric core between the branch shelf, and heat conduction silica gel cover can be with some heats of electric core through the horizontal pole rethread horizontal pole conduction for the protective barrel on the connecting piece conduction for the branch shelf, lets the heat distribution in the battery package more even, can make electric core can be more quick dispel the heat simultaneously, avoids because the battery package can not in time dispel the heat and lead to the condition emergence of the explosion of temperature out of control.

Drawings

Fig. 1 is a first schematic structural diagram of an explosion-proof lithium battery pack provided by the present invention;

fig. 2 is a schematic structural diagram ii of an explosion-proof lithium battery pack provided by the present invention;

fig. 3 is the utility model provides a structural schematic diagram of the separate shelf and the heat conduction cover of explosion-proof type lithium cell pack package.

In the figure: 1. a base plate; 2. a second side plate; 3. a first side plate; 4. heat dissipation holes; 5. a slot; 6. cutting; 7. a cross bar; 8. a connecting member; 9. a heat conducting sleeve; 10. an electric core; 11. and a top plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Example 1

Referring to fig. 1-3, an explosion-proof lithium battery pack comprises a bottom plate 1, wherein two first side plates 3 which are correspondingly arranged are fixedly arranged on the upper surface of the bottom plate 1, a second side plate 2 is fixedly arranged between the two first side plates 3, a protection barrel is jointly formed by the two first side plates 3 and the two second side plates 2, a top plate 11 is fixedly arranged at the top end of the protection barrel, a plurality of separation frames are arranged in the protection barrel along a straight line direction, a plurality of battery cells 10 are arranged between every two adjacent separation frames, a heat conduction sleeve 9 is sleeved outside each battery cell 10, each heat conduction sleeve 9 is uniformly connected with the separation frames on two sides through a connecting piece 8, each separation frame comprises a transverse rod 7 and an inserting strip 6, the two inserting strips 6 are fixedly connected through a plurality of transverse rods 7 which are parallel to each other, inserting grooves 5 which correspond to the inserting strips 6 are formed in the inner walls of the protection barrel, a plurality of inserting holes which correspond to the transverse rods 7 are formed in the connecting piece 8, and the inserting holes which correspond to the transverse rods 7 are formed in the connecting piece 8, and are sleeved on the transverse rods 7 of the adjacent separation frames. The surface of the protection cylinder is provided with a plurality of heat dissipation holes 4. The heat conduction sleeve 9 and the connecting piece 8 are integrally made heat conduction silica gel pieces. The heat conductive silica gel is a high-end heat conductive compound, and is not solidified, and the characteristic of no electric conduction can avoid risks such as short circuit of a circuit. The clearance of filling electric core 10 contact surface that heat conduction silica gel cover can be fine extrudes the contact surface with the air, and the air is hot bad conductor, can seriously hinder the transmission of heat between the contact surface, has had the replenishment of heat conduction silica gel cover, can make the better abundant contact of contact surface, really accomplishes face-to-face contact, and the reaction in the temperature can reach the difference in temperature as little as possible. The first side plate 3 and the second side plate 2 are made of aluminum alloy plates. The aluminum alloy plate has good heat conductivity, can be better with the external air hole of heat conduction that electric core 10 produced, be favorable to the battery package heat dissipation, select the moderate aluminum alloy plate of thickness simultaneously, can utilize the high strength characteristic of aluminum alloy to effectively protect electric core 10.

When the battery pack is used, the battery pack is internally provided with a plurality of separating frames for separating the battery cells 10, the structural strength of the whole battery pack can be greatly improved by utilizing the cross rods 7 in the separating frames, so that the battery pack is difficult to deform and damage under external force impact, the battery cells 10 are better protected, and explosion caused by damage of the battery pack is prevented; meanwhile, the whole separation frame is installed in a mode that the insertion strips 6 are inserted into the slots 5, so that the battery pack is more convenient to assemble, a heat-conducting silica gel sleeve is sleeved on the battery cell 10 between the separation frames, part of heat of the battery cell 10 can be conducted to the cross rod 7 on the separation frame through the connecting piece 8 and then conducted to the protection barrel through the cross rod 7, the heat distribution in the battery pack is more uniform, meanwhile, the battery cell 10 can be cooled more quickly, the situation that explosion happens due to the fact that the battery pack cannot be cooled in time and temperature out of control is avoided, and meanwhile, the heat-conducting silica gel sleeve can further conduct shock absorption protection on the battery cell 10.

Example 2

Referring to fig. 1 to 3, as another preferred embodiment of the present invention, the difference from embodiment 1 is that a heating module and a heat dissipation module are disposed in the protection cylinder, the heating module is used for heating the electric core 10, and the heat dissipation module is used for assisting the electric core 10 to dissipate heat. The heating module comprises an electric heating sheet which is arranged on the bottom plate 1 and is a PTC electric heating sheet; the heat dissipation module comprises a fan, the fan is installed on the surface of the protection barrel, the heat dissipation holes 4 are formed in the protection barrel, and the fan is used for discharging hot air in the battery pack to the outside of the protection barrel through the heat dissipation holes 4 so as to assist the battery pack to dissipate heat quickly.

When the temperature is lower in winter, the lithium battery pack needs to be heated by starting the electric heating sheet to heat the battery cell 10, so that the battery cell 10 keeps a proper temperature, and the service life of the battery pack is prolonged.

The above, only be the embodiment of the preferred of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, which are designed to be replaced or changed equally, all should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an explosion-proof type lithium cell pack package, includes bottom plate (1), its characterized in that, fixed surface installs two first curb plate (3) that correspond the setting on bottom plate (1), two fixed mounting has second curb plate (2), two between first curb plate (3) and two second curb plate (2) constitute a protecting cylinder jointly, protecting cylinder top fixed mounting has roof (11), a plurality of bank-up frame of having arranged along the straight line direction in the protecting cylinder, every two are adjacent be provided with a plurality of electricity core (10), every between the bank-up frame electricity core (10) all overlap and be equipped with one heat conduction cover (9), every heat conduction cover (9) are equallyd divide and are connected with the bank-up frame of both sides through connecting piece (8), the bank-up frame includes horizontal pole (7), cutting (6), two through horizontal pole (7) fixed connection that a plurality of looks are parallel to each other between cutting (6), set up slot (5) corresponding with cutting (6) on the inner wall of protecting cylinder, cutting (6) all insert at the corresponding slot (5) of corresponding jack (8), set up through the connecting piece (8) and corresponding jack (7) on the connecting piece (7) corresponding cutting frame (8) corresponding horizontal pole (7) the hole is established on the connecting piece (7) the connecting piece.

2. The explosion-proof lithium battery pack bag according to claim 1, wherein the heat-conducting sleeve (9) and the connecting piece (8) are integrally made of a heat-conducting silicone piece.

3. The explosion-proof lithium battery pack bag according to claim 1, wherein the first side plate (3) and the second side plate (2) are made of aluminum alloy plates.

4. The explosion-proof lithium battery pack according to claim 1, wherein the surface of the protection cylinder is provided with a plurality of heat dissipation holes (4).

5. The explosion-proof lithium battery pack bag according to claim 1, wherein a heating module and a heat dissipation module are arranged in the protection cylinder, the heating module is used for heating the battery cell (10), and the heat dissipation module is used for assisting the battery cell (10) in heat dissipation.