CN213601966U

CN213601966U - Battery pack with heat dissipation structure and battery box

Info

Publication number: CN213601966U
Application number: CN202021934052.3U
Authority: CN
Inventors: 毛广甫
Original assignee: Repower Technology Co ltd
Current assignee: Repower Technology Co ltd
Priority date: 2020-09-04
Filing date: 2020-09-04
Publication date: 2021-07-02
Anticipated expiration: 2030-09-04

Abstract

The application provides a battery pack and a battery box with a heat dissipation structure, which comprise a positioning piece, a battery block and a heat dissipation sheet, wherein the positioning piece comprises a top cover, a bottom plate and a binding belt; the radiating fins are arranged between two adjacent battery blocks and used for conducting heat generated by the battery blocks. The application provides a battery package and battery box with heat radiation structure, compare with prior art, this application simple structure uses top cap and bottom to fix a position the battery piece, the ligature area is fixed, and set up the fin in the space of two adjacent panels, when carrying out heat conduction radiating to the battery, need not connect external cooling structure, and utilize the space between the battery to set up the fin, do not increase the inside volume of battery box, keep original battery box structure.

Description

Battery pack with heat dissipation structure and battery box

Technical Field

The application belongs to the technical field of battery box heat dissipation, especially relates to a battery package and battery box with heat radiation structure.

Background

Most of the cooling methods in the battery box are natural cooling or liquid cooling, and natural cooling (not adding cooling device promptly) is high because lithium cell characteristic itself, the external temperature of summer itself, and the battery package can appear high temperature warning often in the charge-discharge process, may lead to dangerous accident even.

In the existing battery box, the battery cells with limited design space are generally required to be closely arranged in the battery box, so that the heat dissipation of each battery cell is not uniform enough. If the heat dissipation method that the battery monomers are dispersedly arranged in the battery box at a certain distance is adopted, the volume of the battery box is greatly increased. Therefore, a heat dissipation method with small occupied volume and good cooling effect is urgently needed.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the application is to provide a battery pack and a battery box with heat radiation structure to solve the technical problems that the battery box in the prior art has poor heat radiation and the heat radiation structure occupies a large space.

In order to achieve the purpose, the technical scheme adopted by the application is as follows: provided is a battery pack having a heat dissipation structure, including: the positioning piece comprises a top cover, a bottom plate and binding belts, the bottom plate and the top cover are arranged on two opposite surfaces of the battery block, and the binding belts are bound on the outer sides of the top cover and the bottom plate and used for clamping and fixing the battery block; the radiating fins are arranged between two adjacent battery blocks and used for conducting heat generated by the battery blocks.

Optionally, the bottom plate is provided with strip-shaped isolation ribs arranged in parallel, the battery blocks are fixed in an installation space formed between two adjacent strip-shaped isolation ribs, a gap is formed between two adjacent fixed battery blocks, and the radiating fins are arranged in the gap.

Optionally, the strip-shaped isolation ribs are uniformly arranged at equal intervals along the axial direction of the bottom plate.

Optionally, the distance between two adjacent isolation ribs is equal to the thickness of the battery block, and the thickness of the isolation ribs is greater than or equal to the thickness of the heat dissipation fins.

Optionally, the top cover is further provided with a positioning rib corresponding to the isolation rib.

Optionally, at least one side of the heat sink is a pasting side, and the pasting side is adhered to the battery block.

Optionally, the spacer ribs and/or the positioning ribs are provided with elastic clips for clamping the heat sink.

Optionally, still be equipped with battery control panel on the top cap, battery control panel and battery piece electric connection.

The utility model discloses an on the other hand provides a battery box, including box and the battery package that has heat radiation structure as above, the battery package is located side by side in the box.

Optionally, a heat dissipation fan is further disposed on a side surface of the box body.

The application provides a battery package and battery box with heat radiation structure's beneficial effect lies in: compared with the prior art, the battery box has a simple structure, the battery blocks are positioned by using the top cover and the bottom cover, the binding tapes are fixed, the radiating fins are arranged in the gaps of the two adjacent battery plates, the heat conduction and the heat dissipation of the batteries are realized without connecting an external cooling structure, the radiating fins are arranged by using the gaps between the batteries, the internal volume of the battery box is not increased, and the original structure of the battery box is kept; and can alleviate battery deformation to a certain extent, prevent that atress extrusion deformation, emergence incident between the battery.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in 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 application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic view illustrating an installation structure of a battery pack having a heat dissipation structure according to an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of a base plate according to an embodiment of the present disclosure;

fig. 3 is a schematic structural diagram of a top cover provided in an embodiment of the present application;

fig. 4 is a schematic structural diagram of a battery box according to an embodiment of the present application.

Wherein, in the figures, the respective reference numerals:

100-a battery pack with a heat dissipation structure; 200-a battery box; 1-a positioning element; 2-a battery block; 3-a heat sink; 4-a top cover; 5-a bottom plate; 6-binding tapes; 7-isolation ribs; 8-installation space; 9-positioning ribs; 10-an elastic clip; 11-a box body.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1, fig. 2 and fig. 3 together, a structure of a battery pack having a heat dissipation structure according to an embodiment of the present application will be described. The battery pack 100 having the heat dissipation structure in the present embodiment includes the following components: the battery pack comprises a positioning piece 1, a battery block 2 and a radiating fin 3.

Specifically, as shown in fig. 2 and 3, the positioning member 1 includes a top cover 4, a bottom plate 5, and a binding band 6. The bottom plate 5 and the top cover 4 are arranged on two opposite surfaces of the battery block 2, and the binding bands 6 are bound on the outer sides of the top cover 4 and the bottom plate 5 and used for clamping and fixing the battery block 2. In this embodiment, the top cover 4 and the bottom plate 5 are fixed to the top and bottom ends of the battery block 2, respectively, and the battery block is vertically disposed between the top cover 4 and the bottom plate 5. The binding bands 6 are wound on the outer sides of the top cover 4, the bottom plate 5 and the battery block 2, and the two ends of the binding bands 6 are tightly bound and tightly bind the top plate 4 and the bottom plate 5 on the two ends of the battery block 2. Further, a heat sink 3 is disposed between two adjacent battery blocks 2 for conducting heat generated by the battery blocks 2. In the technical scheme, a certain gap is formed between the adjacent battery blocks 2, and the radiating fins 3 are arranged in the gap between the two battery blocks, so that heat generated when the battery blocks 2 run can be conducted out as soon as possible, the fault is reduced, and the safety of the battery is improved.

The application provides a battery package and battery box with heat radiation structure's beneficial effect lies in: compared with the prior art, this application simple structure sets up fin 3 in the space of two adjacent panels 2, when carrying out heat conduction radiating to the battery, need not connect external cooling structure to utilize the space between the battery to set up fin 3, do not increase the inside volume of battery box, keep original battery box structure.

Preferably, the bottom plate 5 is provided with strip-shaped isolation ribs 7 arranged in parallel, the battery blocks 2 are fixed in a mounting space 8 formed between two adjacent strip-shaped isolation ribs 7, a gap is formed between two adjacent fixed battery blocks 2, and the heat dissipation fins 3 are arranged in the gap. The position of the battery block 2 is fixed through the isolation ribs 7 with the strip shape, the stability of the battery block 2 in the operation process can be guaranteed, and meanwhile, a fixed space is provided for installation of the radiating fins 4.

Preferably, the strip-shaped spacing ribs 7 are uniformly arranged at equal intervals along the axial direction of the bottom plate 5. The evenly arranged isolation ribs 7 provide fast installation space for the installation of the battery blocks 2 with the same specification, and the even installation space of the radiating fins 3 is also ensured while the battery installation efficiency is improved.

Preferably, the distance between two adjacent isolation ribs 7 is equal to the thickness of the battery block, and the thickness of the isolation ribs 7 is greater than or equal to the thickness of the heat dissipation sheet 3. As is apparent from the manner of mounting the battery block 2 and the heat sink 3, the battery block 2 is placed between the adjacent spacer ribs 7, and therefore the adjacent spacer ribs 7 are used to hold and fix the battery block 2. Therefore, when the distance between the spacers 7 is equal to the thickness of the battery block 2, the battery block 2 can be fixed more stably, and the stability of the battery block 2 can be maintained. The thickness of the spacer 7 determines the gap between the two battery blocks 2, and therefore, in order to ensure smooth mounting of the heat sink 3, the thickness of the spacer 7 is set to be greater than or equal to the thickness of the heat sink 3.

In a preferred embodiment, the top cover 4 is further provided with positioning ribs 9 corresponding to the isolation ribs 7. Set up top cap 4 to be similar with the structure of bottom plate 5, fix a position the top of battery piece 2 with location muscle 9 equally, fixed battery piece 2 that can be better prevents that battery piece 2 position from removing.

Preferably, the surfaces of the top cover 4 and the bottom plate 5 are also provided with strip-shaped positioning grooves, and the binding bands 6 are arranged in the positioning grooves. The positioning groove is used for fixing the position of the binding belt 6, preventing the binding belt 6 from shifting during installation, and keeping the stability of the position of the battery block 2.

Alternatively, at least one side of the heat sink 3 is a sticking side, and the sticking side is stuck to the battery block 2. One side of the radiating fin 3 is bonded with the battery block 2, so that the heat of the battery block 2 is directly absorbed, and the battery block 2 is better radiated.

Optionally, the spacer ribs 7 and/or the positioning ribs 9 are provided with resilient clips 10 for clamping the heat sink 3. The heat radiating fins can be connected with the positioning piece 1 through the elastic clamp 10, and the movable connection of the heat radiating fins 3 can facilitate the replacement or installation of the heat radiating fins 3.

Preferably, a battery control board is further arranged on the top plate and electrically connected with the battery block. The battery control board is used for connecting and controlling the battery box.

Preferably, please refer to fig. 4 in combination, according to another aspect of the present invention, a battery box 200 is provided, which includes the above battery pack 100 with a heat dissipation structure, one or more battery packs 100 are arranged in the battery box 200 in parallel, and a plurality of battery packs 100 are connected in series or in parallel in the battery box 200, can be adjusted according to a use object, and can be generally used for temporary power supply, household energy storage, or automobile power supply. The combined use of a plurality of battery packs 100 expands the application scenarios of the battery packs 100.

Further, the battery box 200 includes a box body 11, and a heat dissipation fan is further disposed on a side surface of the box body 11. The heat dissipation fan is used for guiding heat absorbed by the heat dissipation fins 3 out of the box body 11 in an air convection mode, so that the temperature in the battery box 200 is kept, the heat dissipation fan and the heat dissipation fins 3 cool the battery block 2 together, normal operation of a battery pack in the battery box 200 is guaranteed, and accidents such as explosion, liquid leakage and the like are prevented.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A battery pack with a heat dissipation structure is characterized by comprising a positioning piece, a battery block and a heat dissipation piece,

the positioning piece comprises a top cover, a bottom plate and binding belts, the bottom plate and the top cover are arranged on two opposite surfaces of the battery block, and the binding belts are bound on the outer sides of the top cover and the bottom plate and used for clamping and fixing the battery block;

the radiating fins are arranged between two adjacent battery blocks and used for conducting heat generated by the battery blocks.

2. The battery pack with the heat dissipation structure as recited in claim 1, wherein the bottom plate is provided with strip-shaped isolation ribs arranged in parallel, the battery blocks are fixed in an installation space formed between two adjacent strip-shaped isolation ribs, a gap is formed between two adjacent fixed battery blocks, and the heat dissipation fins are disposed in the gap.

3. The battery pack with the heat dissipation structure according to claim 2, wherein the strip-shaped spacer ribs are uniformly arranged at equal intervals in an axial direction of the base plate.

4. The battery pack with the heat dissipation structure according to claim 3, wherein a distance between two adjacent spacer ribs is equal to a thickness of the battery block, and the thickness of the spacer ribs is greater than or equal to a thickness of the heat dissipation fins.

5. The battery pack with the heat dissipation structure as recited in claim 2, wherein a positioning rib is further disposed on the top cover corresponding to the isolation rib.

6. The battery pack with the heat dissipation structure according to any one of claims 1 to 5, wherein at least one side of the heat dissipation sheet is a sticking side, and the sticking side is stuck to the battery block.

7. The battery pack with the heat dissipation structure as recited in claim 5, wherein the spacer ribs and/or the positioning ribs are provided with elastic clips for clamping the heat dissipation fins.

8. The battery pack with the heat dissipation structure as recited in any one of claims 1 to 5, wherein a battery control board is further disposed on the top cover, and the battery control board is electrically connected to the battery block.

9. A battery case, comprising a case body and a battery pack having a heat dissipation structure as set forth in any one of claims 1 to 8, the battery pack being juxtaposed in the case body.

10. The battery box according to claim 9, wherein a heat dissipation fan is further provided on a side surface of the box body.