CN217086693U

CN217086693U - High-stability lithium iron phosphate battery pack capable of avoiding heat accumulation

Info

Publication number: CN217086693U
Application number: CN202123441020.7U
Authority: CN
Inventors: 邓树立; 彭贤昊; 张华�
Original assignee: Shenzhen Zhanchuangfeng Technology Co ltd
Current assignee: Shenzhen Zhanchuangfeng Technology Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-07-29
Anticipated expiration: 2031-12-30

Abstract

The utility model provides a can avoid high stability lithium iron phosphate battery group of heat accumulation, including an electric core support, electric core support comprises a set of side shield and several crossbeams of connecting the side shield, is equipped with several electric core main part in the electric core support, is equipped with the heating panel between electric core main part and side shield and crossbeam, and presss from both sides between the electric core main part and be equipped with the heat dissipation intermediate layer, heat dissipation intermediate layer both ends and heating panel contact, the utility model discloses a heating panel of making by the material that has high thermal conductivity coefficient dispels the heat to electric core main part, has still add the heat dissipation intermediate layer between electric core main part simultaneously, has further strengthened the radiating efficiency of group battery, has effectually avoided carrying out heat-conduction each other between electric core main part and has leaded to the accumulational problem of heat, has promoted the security of group battery by a wide margin.

Description

High-stability lithium iron phosphate battery pack capable of avoiding heat accumulation

Technical Field

The utility model relates to a group battery heat dissipation technical field, concretely relates to can avoid high stability lithium iron phosphate battery group of heat accumulation.

Background

The lithium iron phosphate battery is a lithium ion battery using lithium iron phosphate (LiFePO4) as a positive electrode material and carbon as a negative electrode material, and has a monomer rated voltage of 3.2V and a charge cut-off voltage of 3.6-3.65V.

In the charging process, part of lithium ions in the lithium iron phosphate are removed, transferred to a negative electrode through an electrolyte and embedded into a negative electrode carbon material; meanwhile, electrons are released from the anode and reach the cathode from an external circuit, so that the balance of chemical reaction is maintained. In the discharging process, lithium ions are separated from the negative electrode and reach the positive electrode through the electrolyte, and meanwhile, electrons are released from the negative electrode and reach the positive electrode from an external circuit to provide energy for the outside.

The lithium iron phosphate battery has the advantages of high working voltage, high energy density, long cycle life, good safety performance, small self-discharge rate and no memory effect.

However, based on the characteristics of the lithium iron phosphate battery, the heat emitted during operation is also large, and if a good heat dissipation structure cannot be matched, a safety problem may occur due to an excessively high temperature.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's not enough, provide a can avoid the high stability lithium iron phosphate group of heat accumulation.

The technical scheme of the utility model as follows:

a high stability lithium iron phosphate battery pack that can avoid heat accumulation, comprising:

an electricity core support, electricity core support is connected by a set of side shield and several the crossbeam of side shield constitutes, be equipped with several electricity core main part in the electricity core support, electricity core main part with be equipped with the heating panel between side shield and crossbeam, just press from both sides between the electricity core main part and be equipped with the heat dissipation intermediate layer, heat dissipation intermediate layer both ends with the heating panel contact.

The utility model discloses in, connect through the connecting plate between the electric core main part, just the connecting plate inboard with still be equipped with several cooling tubes on the electric core main part contact position.

In the present invention, the side shield is connected to the cross member by screws, and the heat dissipation plate is connected to the cross member by screws.

Further, the connecting plate is isolated from the heat dissipation plate and the heat dissipation interlayer.

The heat dissipation plate and the heat dissipation interlayer are made of materials with high thermal conductivity.

The utility model discloses in, the quantity of electricity core main part is 6-12, and is corresponding, the interbedded quantity of heat dissipation is 5-11.

Furthermore, the number of the connecting plates is 5-11, and the number of the connecting plates is matched with that of the battery cell main bodies.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model discloses a heating panel made by the material that has high thermal conductivity coefficient dispels the heat to electric core main part, has still add the heat dissipation intermediate layer between electric core main part simultaneously, has further strengthened the radiating efficiency of group battery, has effectually avoided carrying out heat-conduction each other between electric core main part and has leaded to the accumulational problem of heat, has promoted the security of group battery by a wide margin.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is an overall structural diagram of a high-stability lithium iron phosphate battery pack capable of avoiding heat accumulation according to the present invention;

fig. 2 is an internal structural view of the high stability lithium iron phosphate battery pack that can prevent heat accumulation.

The reference numerals are explained below:

1. a side dam; 2. a cross beam; 3. a cell main body; 4. a heat dissipation plate; 5. a heat dissipation interlayer; 6. a connecting plate.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In order to explain the technical solution of the present invention, the following description is made by using specific examples.

Example 1

Referring to fig. 1 to 2, the present embodiment provides a high stability lithium iron phosphate battery pack capable of avoiding heat accumulation, including:

an electricity core support, electricity core support comprise a set of side shield 1 and several crossbeam 2 of connecting side shield 1, are equipped with several electricity core main part 3 in the electricity core support, are equipped with heating panel 4 between electricity core main part 3 and side shield 1 and crossbeam 2, and press from both sides between electricity core main part 3 and be equipped with heat dissipation intermediate layer 5, heat dissipation intermediate layer 5 both ends and the contact of heating panel 4.

In this embodiment, the cell main bodies 3 are connected by a connecting plate 6, and a plurality of cooling pipes are further disposed at the contact positions between the inner side of the connecting plate 6 and the cell main bodies 3.

In the present embodiment, the side dams 1 and the cross beams 2 are fixedly connected by screws, and the heat radiation plates 4 and the cross beams 2 are also fixedly connected by screws.

Further, the connection plate 6 is isolated from the heat dissipation plate 4 and the heat dissipation interlayer 5.

In the present embodiment, the heat dissipation plate 4 and the heat dissipation interlayer 5 are made of a material having a high thermal conductivity.

In this embodiment, the number of the cell main bodies 3 is 6, and correspondingly, the number of the heat dissipation interlayers 5 is 5.

Furthermore, the number of the connecting plates 6 is 5, which is matched with the number of the cell main bodies.

Example 2

The present embodiment provides a can avoid high stability lithium iron phosphate battery group of heat accumulation, includes:

In this embodiment, the number of the cell main bodies 3 is 12, and correspondingly, the number of the heat dissipation interlayers 5 is 11.

Furthermore, the number of the connecting plates 6 is 11, which is matched with the number of the cell main bodies.

While the present invention has been described with reference to several exemplary embodiments, it is understood that the terminology used is intended to be in the nature of words of description and illustration, rather than of limitation. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

Claims

1. The utility model provides a can avoid high stability lithium iron phosphate group of heat accumulation which characterized in that, includes an electricity core support, electricity core support is connected by a set of side shield and several the crossbeam of side shield constitutes, be equipped with several electricity core main part in the electricity core support, electricity core main part with be equipped with the heating panel between side shield and crossbeam, just it is equipped with the heat dissipation intermediate layer to press from both sides between electricity core main part, heat dissipation intermediate layer both ends with the heating panel contact.

2. The lithium iron phosphate battery pack with high stability and capable of avoiding heat accumulation according to claim 1, wherein the cell bodies are connected through a connecting plate, and a plurality of cooling pipes are further disposed at contact positions between inner sides of the connecting plate and the cell bodies.

3. The lithium iron phosphate battery pack with high stability and capable of avoiding heat accumulation according to claim 1, wherein the side baffles are fixedly connected with the cross beam through screws, and the heat dissipation plate is fixedly connected with the cross beam through screws.

4. The lithium iron phosphate battery pack with high stability capable of avoiding heat accumulation according to claim 2, wherein the connection board is isolated from the heat dissipation plate and the heat dissipation interlayer.

5. The lithium iron phosphate battery pack with high stability and capable of avoiding heat accumulation according to claim 1, wherein the heat dissipation plate and the heat dissipation interlayer are made of materials with high thermal conductivity.

6. The lithium iron phosphate battery pack with high stability and capable of avoiding heat accumulation according to claim 2, wherein the number of the cell main bodies is 6-12, and correspondingly, the number of the heat dissipation interlayers is 5-11.

7. The lithium iron phosphate battery pack with high stability and capable of avoiding heat accumulation according to claim 6, wherein the number of the connecting plates is 5-11, which is matched with the number of the cell bodies.