CN218996845U

CN218996845U - Battery pack

Info

Publication number: CN218996845U
Application number: CN202222798492.6U
Authority: CN
Inventors: 邢程; 江吉兵; 陈涛; 党奎
Original assignee: Hubei Eve Power Co Ltd
Current assignee: Hubei Eve Power Co Ltd
Priority date: 2022-10-24
Filing date: 2022-10-24
Publication date: 2023-05-09
Anticipated expiration: 2032-10-24

Abstract

The utility model relates to the field of vehicle-mounted batteries, in particular to a battery pack, which comprises a battery pack outer box and a battery module, wherein at least part of the wall of the battery pack outer box is a corrugated plate, the corrugated ribs of the corrugated plate are longitudinally communicated, the direction of the corrugated ribs of the corrugated plate is the same as the advancing direction of an automobile, a heat conducting material member is arranged between the battery pack outer box and the battery module, the heat radiating area of the battery pack outer box is increased by arranging the corrugated plate in the battery pack outer box, the heat generated by the battery module can be quickly transferred to the battery pack outer box by arranging the heat conducting material between the battery module and the battery pack outer box, and the heat on the surface of the battery pack outer box is quickly dispersed into the air along with the airflow generated by the movement of the automobile by the corrugated plate in the same direction as the advancing direction of the automobile, so that the effect of improving the heat radiating efficiency of the battery pack is achieved.

Description

Battery pack

Technical Field

The utility model relates to the field of vehicle-mounted batteries, in particular to a battery pack.

Background

The battery module of the electric automobile needs timely heat dissipation, if heat dissipation is not timely, the temperature of a battery module system is too high or uneven in distribution is caused, the charge-discharge cycle efficiency of the battery is reduced, the power and energy exertion of the battery are affected, the vehicle system is out of control when serious, and the safety and reliability of the vehicle are affected.

The current vehicle-mounted battery pack adopting a natural heat dissipation mode balances the heat generated by the battery pack by the environment, belongs to a passive heat dissipation mode, and has the advantages of simple structure and low cost, but the problems of unobvious heat dissipation effect and low heat dissipation efficiency generally exist, so that the heat generated in the battery pack cannot be rapidly dissipated, and the battery pack is easy to break through the optimal use temperature.

Therefore, a technical solution is needed to solve the technical problem of low heat dissipation efficiency of the battery pack in the existing natural heat dissipation manner.

Disclosure of Invention

The utility model aims at: the battery pack is provided for solving the technical problem that the existing battery pack with a natural heat dissipation mode is low in heat dissipation efficiency.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a battery package, includes battery package outer box and battery module, the case wall of battery package outer box is the wave shaped plate at least partly, the wave rib of wave shaped plate vertically link up, the wave rib direction of wave shaped plate is the same with the car direction of advance, battery package outer box with set up the heat conduction material component between the battery module.

According to the battery pack, the heat radiating area of the outer box of the battery pack is increased by arranging the box wall of the corrugated plate on the outer box of the battery pack, the heat generated by the battery module can be quickly transferred to the outer box of the battery pack by arranging the heat conducting material between the battery module and the outer box of the battery pack, and the heat on the surface of the outer box of the battery pack is quickly dispersed into the air along with the air flow generated by the movement of the automobile by arranging the corrugated plate in the same direction as the advancing direction of the automobile, so that the effect of improving the heat radiating efficiency of the battery pack is achieved.

As a preferable scheme of the utility model, the battery pack outer box comprises a box body and a box cover which are connected in a buckled mode. The split type box body and the box cover are buckled to form an installation cavity of the battery module, so that the battery module and the heat conducting material component are conveniently installed.

As a preferable scheme of the utility model, the box body and the box cover are all aluminum structural members. The aluminum material has better heat conduction effect.

As a preferable scheme of the utility model, the box body is provided with a first frame connecting part for connection, the box cover is provided with a second frame connecting part, and the first frame connecting part and the second frame connecting part are detachably connected through a connecting piece. The setting of connecting piece and connecting portion realizes the detachable connection of case lid and box, makes things convenient for battery module's maintenance, and the connecting piece is bolt or buckle.

As a preferable mode of the utility model, the box body comprises a bottom plate and a plurality of side plates, wherein the side plates are connected with the bottom plate, adjacent side plates are connected, the bottom plate is provided with the corrugated plate, and/or the side plates are provided with the corrugated plate. The corrugated plate increases the heat dissipation area of the battery pack outer case.

As a preferred scheme of the utility model, the case cover comprises a cover plate and a plurality of coamings, wherein the coamings are connected with the cover plate, the cover plate is provided with the corrugated plate, and/or the coamings are provided with the corrugated plate. The corrugated plate increases the heat dissipation area of the battery pack outer case.

As a preferable mode of the utility model, the battery module is arranged in the battery pack outer box, the heat conducting material component comprises heat conducting gel and heat conducting insulating silica gel pad, at least one part of the battery module is glued with the box wall through the heat conducting gel, and at least another part of the battery module is abutted with the box wall through the heat conducting insulating silica gel pad. The heat conducting gel and the heat conducting insulating silica gel pad are in contact heat conduction with the battery module, heat generated by the battery module is transferred to the wall of the box, and the heat dissipation effect is improved.

As a preferred scheme of the utility model, the battery pack further comprises a module locking cross beam, wherein the module locking cross beam is connected with the battery pack outer box, and the module locking cross beam abuts against the battery module to limit the movement of the battery module. The locking crossbeam can be used for keeping stable distance between the battery module and the battery pack outer box when limiting the battery module, and providing stable setting space for the heat conduction material component, so that the structural strength of the battery pack outer box is enhanced, the battery module is prevented from being extruded by external force, a more stable power supply environment is provided for the battery module, and the heat dissipation of the heat conduction material component is facilitated to be uniform.

As a preferable scheme of the utility model, the box wall is provided with a plurality of extending parts in an arrayed manner, the extending parts comprise sheet metal bending parts, and the sheet metal bending parts and the box wall form a cavity. The extension piece is arranged for fixing and carrying the battery pack outer box.

As a preferable scheme of the utility model, the extension piece comprises a lifting lug, the lifting lug is provided with a lifting ring, the lifting ring is provided with a notch, and the lifting ring is detachably connected with the lifting lug through the notch. The lug length and the rings adaptation of sheet metal structure, rings penetrate the lug through self breach, can dismantle with the lug and be connected, through setting up lug and rings, can be convenient for the transport of battery package outer box.

As a preferred embodiment of the utility model, the extension piece is nested with a fixing sleeve, and the fixing sleeve is provided with a through hole and/or a threaded hole. The fixed cover comprises a cylindrical structural member, the axial direction of the fixed cover is perpendicular to the bottom plate and the cover plate, through holes and/or threaded holes are formed in the axial direction of the fixed cover, and the fixed cover is connected with the sheet metal bending part in a nested mode, so that the battery pack outer box can be firmly fixed on the outer members of the vehicle and the like.

In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:

1. according to the battery pack, the corrugated plate is arranged on the outer box of the battery pack, so that the heat radiating area of the outer box of the battery pack is increased, the heat generated by the battery module can be quickly transferred to the outer box of the battery pack through the heat conducting material arranged between the battery module and the outer box of the battery pack, and the heat on the surface of the outer box of the battery pack is quickly dispersed into the air along with the air flow generated by the movement of an automobile through the arrangement of the corrugated plate in the same direction as the advancing direction of the automobile, so that the effect of improving the heat radiating efficiency of the battery pack is achieved;

2. the battery pack disclosed by the utility model is simple in structure and easy to manufacture, and air flow can flow quickly along the wave ribs of the corrugated plate, so that heat exchange is further accelerated, and the battery pack has good economic and practical values.

Drawings

Fig. 1 is a schematic structure of a battery pack;

fig. 2 is an exploded view of a battery pack;

fig. 3 is a schematic view of a case structure of a battery pack;

fig. 4 is a schematic view of an exploded structure of a case of a battery pack;

fig. 5 is a schematic diagram of a cover structure of a battery pack;

fig. 6 is a schematic diagram of an exploded structure of a case cover of a battery pack;

FIG. 7 is a schematic view of a lifting lug structure of a battery pack;

fig. 8 is a schematic view of a structure of a fixing sleeve of a battery pack.

Icon:

the battery pack comprises a 1-battery pack outer box, a 2-battery module, a 3-box body, a 4-box cover, 5-heat conduction gel, 6-heat conduction insulating silica gel pad, 7-first frame connecting parts, 8-second frame connecting parts, 9-bottom plates, 10-side plates, 11-module locking cross beams, 12-cover plates, 13-enclosing plates, 14-fixing sleeves, 15-lifting lugs, 16-lifting rings, 17-sealing gaskets and 18-extending parts.

Detailed Description

The present utility model will be described in detail with reference to the accompanying drawings.

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Example 1

The battery pack comprises a battery pack outer box 1 and a battery module 2, wherein at least part of the wall of the battery pack outer box 1 is a corrugated plate, the corrugated ribs of the corrugated plate longitudinally penetrate, the direction of the corrugated ribs of the corrugated plate is the same as the advancing direction of an automobile, and a heat conducting material member is arranged between the battery pack outer box 1 and the battery module 2.

Specifically, the battery pack outer box 1 comprises a box body 3 and a box cover 4 which are connected in a buckled mode, the box body 3 is connected with the box cover 4 through bolts, and a sealing gasket 17 is arranged at a connecting part 7 at a buckled position; the case body 3 and the case cover 4 are fastened to form an installation cavity for placing the battery module 2.

Specifically, the battery pack outer case 1 is a rectangular case.

Specifically, the box 3 comprises bottom plate 9 and curb plate 10, and four curb plates 10 are connected around bottom plate 9, and four curb plates enclose with bottom plate 9 to establish into one end open-ended accommodation chamber, and wherein, bottom plate 9 is the wave shaped plate, and curb plate 10 that follows the preceding direction of advance setting is the wave shaped plate, and the wave rib direction of wave shaped plate is the same with the car direction of advance.

Specifically, the wave rib is a rib-shaped structure penetrating through the wave crest or the wave trough of the wave plate, and the direction of the wave rib is perpendicular to the wave edge of the wave plate.

Specifically, the case lid 4 comprises apron 12 and bounding wall 13, and four bounding wall 13 connect in the week portion of apron 12, and four bounding wall 13 enclose with apron 12 and establish into one end open-ended accommodation chamber, and apron 12 is the wave shaped plate, and the wave rib direction of wave shaped plate is the same with the car direction of advance, and bounding wall 13 is the integrative frame structure with bottom plate 9 looks adaptation.

Specifically, the gap between the box body 3 and the bottom of the battery module 2 is provided with the heat-conducting gel 5, the heat-conducting gel 5 has the functions of adhesion fixation and heat conduction, after the heat-conducting gel 5 fills the gap between the box body 3 and the battery module 2, one surface of the heat-conducting gel 5 is adhered to the battery module 2, and the other surface is adhered to the battery pack outer box 1, so that the battery module 2 and the battery pack outer box 1 are connected more tightly.

Specifically, the gap between the case cover 4 and the top of the battery module 2 is provided with an insulating heat-conducting silica gel pad, one surface of the heat-conducting insulating silica gel pad is in contact with the battery module, and the other surface of the heat-conducting insulating silica gel pad is in contact with the battery pack outer case 1, so that only the heat conduction and insulation effects are provided, and the top space of the battery case is under the action of gravity and is not suitable for using fluid heat-conducting gel 5 as a heat-conducting material.

Specifically, still be provided with module lock in the box 3 and attach crossbeam 11 for carry out spacingly to battery module 2, module lock attaches crossbeam 11 end connection curb plate 10 simultaneously, makes the outer case 1 structure of battery package more stable.

Specifically, the two ends of the module locking cross beam 11 are respectively connected with two lateral plates transversely arranged on the box body 3, the module locking cross beam 11 is arranged according to the installation position of the battery module 2 in the box body 3, the relative positions of the battery module 2 and the battery pack outer box 1 are fixed, vibration of the battery module 2 in the vehicle moving process is reduced, and the box body strength is increased.

Specifically, the box wall is arranged and provided with a plurality of extension pieces 18, the extension pieces 18 are sheet metal bending pieces, and a cavity is formed between the sheet metal bending pieces and the box wall.

Specifically, a part of the sheet metal bending piece is provided with a fixing sleeve 14, the fixing sleeve 14 is nested and arranged on the sheet metal bending piece, the fixing sleeve 14 is provided with a through hole or a threaded hole for connecting and fixing with a vehicle, the through hole connected with the fixing sleeve 14 on the sheet metal bending piece is a waist-shaped hole, and the long axis direction of the waist-shaped hole is consistent with the longitudinal direction of the battery pack outer box 1; the fixing sleeve 14 is a material for installing the locking device between the battery box and the outside, and preferably comprises a through hole and a threaded hole at the same time, so that the battery pack can be conveniently fixed with the locking device of the whole vehicle or the bracket.

Preferably, the top and bottom surfaces of the retaining sleeve 14 are planar to facilitate mating with an externally mounted locking structure.

Specifically, part panel beating piece of bending is lug 15, and the last rings 16 that has the breach of detachable connection of lug 15 is to being connected with external hoisting transfer equipment box through lug 15 and rings 16, can make things convenient for rising and the lowering of battery package outer box 1.

According to the battery pack, an aluminum product has good heat conducting performance, meanwhile, the contact area between the battery box and air is greatly increased due to the wave-shaped design, the front-back through type design is adopted, the through direction is the forward direction of an automobile X, air flow can flow along a set track rapidly, and heat exchange is further accelerated; through set up the wave plate at battery package outer box 1, make battery package outer box 1 heat radiating area increase, through set up the heat conduction material component between battery module 2 and battery package outer box 1, make the heat that battery module 2 produced can transmit battery package outer box 1 fast, through making wave plate wave rib setting direction the same with the car direction of advance, make the heat on battery package outer box 1 surface disperse in the air fast along with the air current that the car motion produced, reach the effect that improves battery package radiating efficiency.

Example 2

A battery pack of this embodiment has substantially the same structure as that of embodiment 1, except that the four side plates 9 and the bottom plate 10 of the case 3 are corrugated plates.

Example 3

A battery pack according to this embodiment has substantially the same structure as that of embodiment 1, except that the four side plates 13 and the cover plate 12 of the case cover 4 are corrugated plates.

Example 4

The structure of a battery pack according to this embodiment is substantially the same as that of embodiment 1, and the coaming 13 is also provided as a corrugated plate to enhance the heat dissipation effect of the battery pack case 1, unlike embodiment 1.

Example 5

A battery pack of this embodiment has a structure substantially the same as that of embodiment 1, except that the heat conductive material includes mineral oil, and the mineral oil fills the gap between the battery pack outer case 1 and the battery module 2, providing a better heat conductive effect.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. The utility model provides a battery package, its characterized in that includes battery package outer case (1) and battery module (2), the case wall of battery package outer case (1) is the wave shaped plate at least partly, the wave rib of wave shaped plate vertically link up, the wave rib direction of wave shaped plate is the same with the car direction of advance, battery package outer case (1) with set up heat conduction material component between battery module (2).

2. A battery pack according to claim 1, wherein the battery pack outer case (1) comprises a case body (3) and a case cover (4) which are snap-fit.

3. A battery pack according to claim 2, wherein the case (3) and the cover (4) are each of aluminum structural members.

4. A battery pack according to claim 2, wherein the case (3) is provided with a first frame connecting portion (7), the case cover is provided with a second frame connecting portion (8), and the first frame connecting portion (7) and the second frame connecting portion (8) are detachably connected by a connecting member.

5. A battery pack according to claim 2, wherein the case (3) comprises a bottom plate (9) and a number of side plates (10), the side plates (10) being connected to the bottom plate (9), adjacent the side plates (10), the bottom plate (9) being provided as the corrugated plate, and/or the side plates (10) being provided as the corrugated plate.

6. A battery pack according to claim 2, wherein the cover (4) comprises a cover plate (12) and a number of surrounding plates (13), the surrounding plates (13) being connected to the cover plate (12), the cover plate (12) being provided as the corrugated plate and/or the surrounding plates (13) being provided as the corrugated plate.

7. A battery pack according to claim 1, wherein the battery module (2) is mounted in the battery pack outer case (1), the heat conductive material member includes a heat conductive gel (5) and a heat conductive insulating silicone pad (6), at least a part of the battery module (2) is glued to the case wall through the heat conductive gel (5), and at least another part of the battery module (2) is abutted to the case wall through the heat conductive insulating silicone pad (6).

8. A battery pack according to any one of claims 1-7, further comprising a module locking beam (11), said module locking beam (11) being connected to said battery pack outer case (1), and said module locking beam (11) abutting said battery module (2) to limit movement of said battery module (2).

9. A battery pack according to any one of claims 1-7, wherein the battery pack outer case (1) is provided with a plurality of extension members (18) in an array, the extension members (18) comprising sheet metal bending members, a cavity being formed between the sheet metal bending members and the battery pack outer case (1).

10. A battery pack according to claim 9, wherein the extension member (18) comprises a lifting lug (15), the lifting lug (15) is provided with a lifting ring (16), the lifting ring (16) is provided with a notch, and the lifting ring (16) is detachably connected with the lifting lug (15) through the notch.

11. A battery pack according to claim 9, wherein the extension member (18) is provided with a fixing sleeve (14) in a nested manner, the fixing sleeve (14) being provided with a through hole and/or a threaded hole.