CN217691416U

CN217691416U - Waterproof heat radiation structure of high strength battery

Info

Publication number: CN217691416U
Application number: CN202220562154.XU
Authority: CN
Inventors: 张光华; 唐文兵; 吴广; 邓雄; 冯礼健; 叶国华; 刘聪
Original assignee: Guangdong Greenway Technology Co Ltd
Current assignee: Guangdong Greenway Technology Co Ltd
Priority date: 2022-03-11
Filing date: 2022-03-11
Publication date: 2022-10-28
Anticipated expiration: 2032-03-11

Abstract

The utility model provides a waterproof heat radiation structure of high strength battery, include: the battery cell main body is formed by combining a plurality of battery cells, the battery cell EVA foam is arranged between the battery cells, and the EVA foam groups are arranged at the periphery and the bottom of the battery cell main body; the battery cell main body penetrates through the aluminum shell; the battery upper cover is matched with the aluminum shell, and the top of the battery upper cover is provided with a waterproof vent valve; the battery lower cover is matched with the aluminum shell; the waterproof groove has all been seted up to battery upper cover and battery lower cover inboard, is equipped with the waterproof circle of wedge in the waterproof groove, and battery upper cover and battery lower cover inboard still are equipped with strengthening rib structure, the utility model discloses a holistic IP67 waterproof grade of battery, through an aluminium section of thick bamboo and fin, avoided the potential safety hazard that the inside high temperature of battery probably leads to, be located and all be equipped with the strengthening rib in battery upper cover and the battery lower cover, whole shell rigidity is good, still further cooperates the EVA bubble cotton, absorbs the deformation that the battery produced at work, has avoided electric core main part and hard face contact and has harmd electric core main part.

Description

Waterproof heat radiation structure of high strength battery

Technical Field

The utility model relates to a new energy battery assembly technical field, concretely relates to waterproof heat radiation structure of high strength battery.

Background

With the wide application of lithium ion power batteries, more and more electric vehicles adopt rechargeable lithium ion batteries. Lithium ion batteries have a high energy density and relatively active components, and therefore, the safety and reliability of lithium batteries are important.

At present, the safety requirement of battery is more and more tight, and the use scene experience requires more and more high, and simultaneously, the electric current of battery is more and more big, and technical requirement is more and more high, and heavily and to the structural strength of battery, the shock attenuation, waterproof, heat conduction design etc. propose tighter requirement:

1. waterproofing the battery: at present, power batteries on the market are mostly occupied by IP54, IP65 and IP66 from the condition of no consideration of water resistance, and with the improvement of awareness of practical application scenes and safety requirements, the application of high-safety-level IP67 is increased.

2. Structural strength: at present, a considerable part of batteries in the market are assembled by adopting a universal shell, even a support is not provided, the battery pack is only packaged by a sleeve and then is packaged, and the support and the limit between the battery pack and the shell are basically filled with EVA (ethylene vinyl acetate copolymer) or viscose.

If the whole battery does not reach the waterproof IP67, the vehicle passes through a water road or is flooded by water to cause the water inlet short circuit of the battery, thereby causing accidents.

The vehicle can not avoid jolt vibration when running on the road with various working conditions, and even when accidents such as collision occur, the battery can be impacted by strong force, and the battery can be extruded if the vehicle is deformed.

When in use, the battery is not free from heat generation, expansion deformation, heat dissipation and deformation absorption.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide a waterproof heat radiation structure of high strength battery.

The technical scheme of the utility model as follows:

a high strength battery waterproof heat dissipation structure, comprising:

the battery cell comprises a battery cell main body and a battery cell, wherein the battery cell main body is used for providing power energy and is formed by combining a plurality of battery cells, battery cell EVA foam is arranged between the battery cells, and EVA foam groups are arranged at the periphery and the bottom of the battery cell main body;

the aluminum shell is used for being installed in a matched mode and protecting the battery cell main body, and the battery cell main body penetrates through the aluminum shell;

the battery upper cover is used for installing and protecting the battery core main body, the battery upper cover is matched with the aluminum shell, and the top of the battery upper cover is provided with a waterproof vent valve;

the battery lower cover is used for installing and protecting the battery core main body and is matched with the aluminum shell;

waterproof grooves are formed in the inner sides of the upper battery cover and the lower battery cover, wedge-shaped waterproof rings are arranged in the waterproof grooves, and reinforcing rib structures are further arranged on the inner sides of the upper battery cover and the lower battery cover.

The utility model discloses in, electricity core main part top still is equipped with a BMS fixed plate, be equipped with the BMS protection shield on the BMS fixed plate, the BMS protection shield with electricity core main part electric connection to mutually support.

Further, a radiating fin is arranged between the BMS fixing plate and the BMS protection plate.

The utility model discloses in, electricity core main part top still is equipped with the several keysets, is used for connecting electricity core.

Further, the BMS fixing plate is fixedly mounted inside the aluminum case by a plurality of bolts with spring washers.

The utility model discloses in, battery upper cover top still is equipped with charging plug and discharge plug, just charging plug and discharge plug with battery upper cover assembly department all is equipped with the waterproof circle of compression.

Further, a plurality of strip line connectors are further provided on the battery upper cover, for the BMS protection board to connect the charging plug, the discharging plug, and the external device.

The utility model discloses in, the battery upper cover and the battery lower cover all through several screw fixed mounting in the aluminum hull both ends.

The utility model discloses in, electric core main part with the aluminum hull and sealed glue has been irritated between the battery upper cover.

The utility model discloses in, the battery upper cover and the battery lower cover all adopts fire-proof material to make.

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

the utility model discloses a waterproof groove cooperation wedge waterproof circle and compression waterproof circle, the holistic IP67 waterproof grade of battery has been realized, and dispel the heat through aluminium section of thick bamboo and fin cooperation, the potential safety hazard that the inside high temperature of battery probably leads to has been avoided, it all is equipped with the strengthening rib to be located battery upper cover and battery lower cover, whole shell rigidity is good, it is cotton still further to cooperate the EVA bubble, absorb the deformation that the battery produced at work on the one hand, on the other hand has avoided electric core main part and hard face contact and has harmd electric core main part.

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 exploded view of the high-strength waterproof heat dissipation structure for battery of the present invention.

The reference numerals are explained below:

1. a cell main body; 11. an electric core; 12. soaking electric core EVA in cotton; 13. an EVA foam group; 14. an adapter plate; 2. an aluminum shell; 3. an upper cover of the battery; 31. a waterproof vent valve; 32. a charging plug; 33. a discharge plug; 34. compressing the waterproof ring; 35. a strip line connector; 4. a battery lower cover; 41. a waterproof groove; 42. a wedge-shaped waterproof ring; 43. a reinforcing rib structure; 5. a BMS fixing plate; 51. a BMS protection board; 52. and a heat sink.

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.

Examples

Referring to fig. 1, the present embodiment provides a high-strength waterproof heat dissipation structure for a battery, including:

the battery cell comprises a battery cell main body 1 and a battery cell main body, wherein the battery cell main body 1 is formed by combining a plurality of battery cells 11, battery cell EVA foam 12 is arranged between the battery cells 11, and EVA foam groups 13 are arranged at the periphery and the bottom of the battery cell main body 1;

the battery cell comprises an aluminum shell 2, a battery cell body 1 and a battery cell, wherein the aluminum shell 2 is used for being installed in a matched mode and protecting the battery cell body 1, and the battery cell body 1 is arranged in the aluminum shell 2 in a penetrating mode;

the battery upper cover 3 is used for installing and protecting the battery core main body 1, the battery upper cover 3 is matched with the aluminum shell 2, and the top of the battery upper cover 3 is provided with a waterproof ventilation valve 31;

the battery lower cover 4 is used for installing and protecting the electric core main body 1, and the battery lower cover 4 is matched with the aluminum shell 2;

waterproof grooves 41 are formed in the inner sides of the upper battery cover 3 and the lower battery cover 4, wedge-shaped waterproof rings 42 are arranged in the waterproof grooves 41, and reinforcing ribs 43 are further arranged on the inner sides of the upper battery cover 3 and the lower battery cover 4.

In this embodiment, a BMS fixing plate 5 is further disposed above the cell main body 1, a BMS protection plate 51 is disposed on the BMS fixing plate 5, and the BMS protection plate 51 is electrically connected to and matched with the cell main body 1.

Further, a heat sink 52 is provided between the BMS fixing plate 5 and the BMS protection plate 51.

In this embodiment, a plurality of adapter plates 14 are further disposed above the cell body 1 for connecting the cells 11.

Further, the BMS fixing plate 5 is fixedly mounted inside the aluminum case 2 by a plurality of bolts with spring washers.

In this embodiment, the top of the upper cover 3 is further provided with a charging plug 32 and a discharging plug 33, and the assembling positions of the charging plug 32 and the discharging plug 33 with the upper cover 3 are provided with a compression waterproof ring 34.

Further, a plurality of ribbon connectors 35 for connecting the charging plug 32, the discharging plug 33, and external devices to the BMS protection board 51 are provided on the battery upper cover 3.

In this embodiment, the upper cover 3 and the lower cover 4 are both fixed to two ends of the aluminum case 2 by several screws.

In the present embodiment, a sealant is filled between the cell body 1, the aluminum case 2 and the battery top cover 3.

In this embodiment, the upper battery cover 3 and the lower battery cover 4 are made of fireproof materials.

The working principle is as follows:

waterproof groove 41 cooperation wedge waterproof circle 42 and the waterproof circle 34 of compression, the waterproof grade of the holistic IP67 of battery has been realized, and dispel the heat through the cooperation of aluminium section of thick bamboo 2 and fin 52, the potential safety hazard that the inside high temperature of battery probably leads to has been avoided, it all is equipped with strengthening rib 43 to be located in battery upper cover 3 and the battery lower cover 4, whole shell rigidity is good, it is cotton still further to cooperate the EVA bubble, absorb the deformation that the battery produced at work on the one hand, on the other hand has avoided electric core main part 1 and hard surface contact and has damaged electric core main part.

While the present invention has been described with reference to several exemplary embodiments, it is understood that the terms used are words of description and illustration, rather than words 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 waterproof heat radiation structure of high strength battery which characterized in that includes:

the battery cell comprises a battery cell main body and a battery cell, wherein the battery cell main body is used for providing power energy and is formed by combining a plurality of battery cells, EVA foam is arranged between the battery cells, and EVA foam groups are arranged at the periphery and the bottom of the battery cell main body;

2. The waterproof and heat-dissipating structure of a high-strength battery as claimed in claim 1, wherein a BMS fixing plate is further disposed above the battery cell main body, and a BMS protection plate is disposed on the BMS fixing plate and electrically connected to and cooperating with the battery cell main body.

3. The waterproof and heat-dissipating structure for the high-strength battery as claimed in claim 2, wherein heat dissipating fins are further provided between the BMS fixing plate and the BMS protecting plate.

4. The waterproof and heat-dissipating structure of a high-strength battery according to claim 1, wherein a plurality of adapter plates are further disposed above the battery cell main body for connecting the battery cells.

5. The waterproof and heat-dissipating structure for the high-strength battery as claimed in claim 2, wherein the BMS fixing plate is fixedly mounted inside the aluminum case by a plurality of spring washer screws.

6. The waterproof and heat-dissipating structure of a high-strength battery as claimed in claim 2, wherein a charging plug and a discharging plug are further disposed on the top of the battery top cover, and a compression waterproof ring is disposed at the assembly of the charging plug and the battery top cover, and the assembly of the discharging plug and the battery top cover.

7. The waterproof and heat dissipating structure for a high-strength battery as claimed in claim 6, wherein a plurality of strip connectors are further provided on the battery top cover for connecting the BMS protection board to the charging plug, the discharging plug, and external devices.

8. The waterproof heat radiation structure of high strength battery of claim 1 wherein the upper cover of the battery and the lower cover of the battery are both fixedly mounted at both ends of the aluminum shell by a plurality of screws.

9. The waterproof and heat-dissipating structure of a high-strength battery as claimed in claim 1, wherein a sealant is filled between the cell body and the aluminum case and between the cell body and the battery top cover.

10. The waterproof heat dissipation structure of high strength battery of claim 1, wherein said battery upper cover and said battery lower cover are made of fireproof material.