CN214706032U

CN214706032U - Battery pack structure with heat dissipation device

Info

Publication number: CN214706032U
Application number: CN202023190621.0U
Authority: CN
Inventors: 刘秋艳
Original assignee: Suzhou Keyis Intelligent Drive Technology Co ltd
Current assignee: Suzhou Keyis Intelligent Drive Technology Co ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-11-12
Anticipated expiration: 2030-12-25

Abstract

The utility model discloses a battery pack structure with a heat dissipation device, which comprises an upper cover, a box body, a lower cover and a battery pack, wherein the box body is a box body structure with two open ends, the opening at one end of the box body is provided with the upper cover, the opening at the other end is provided with the lower cover, and the battery pack is arranged in the box body; the battery pack comprises a heat dissipation device, a first battery pack and a second battery pack, wherein the heat dissipation device is arranged between the first battery pack and the second battery pack; a first heat conduction pad, a first radiating fin, a third heat conduction pad, a second radiating fin and a second heat conduction pad are sequentially arranged between the first battery pack and the second battery pack, the first radiating fin and the third heat conduction pad are arranged, and a fourth heat conduction pad is arranged at the top end of the second radiating fin; the utility model discloses a set up heat transfer device, in time discharging the atmosphere with group battery production of heat for thermal giving off improves the life of battery package, has increased the security performance of battery package.

Description

Battery pack structure with heat dissipation device

Technical Field

The utility model relates to a battery package heat dissipation technical field, concretely relates to take heat abstractor's battery package structure.

Background

In the prior art, with the continuous development of motorcycles, electric motorcycles gradually take fuel motorcycles, further, due to the defects of large pollution, low capacity and the like of lead-acid batteries, lithium batteries have entered the motorcycle industry as a power source, and cylindrical batteries can be randomly combined into battery packs of different shapes due to small posture, so that the electric motorcycles are more and more widely applied in the electric motorcycle industry; at present, the market demands a battery pack with high potential, high discharge rate and high capacity, the higher the discharge rate of the battery pack is, the more heat generated in the using process is, the heat can not be effectively released, and the safety and the service life of the whole battery pack are influenced, so that how to solve the problem of heat dissipation of the battery pack is urgent.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a take heat abstractor's battery package structure to solve one of the above-mentioned multinomial defect or defect that leads to among the prior art.

In order to achieve the purpose, the utility model is realized by adopting the following technical scheme: a battery pack structure with a heat dissipation device is characterized by comprising an upper cover, a box body, a lower cover and a battery pack, wherein the box body is of a box body structure with openings at two ends; the battery pack comprises a heat dissipation device, a first battery pack and a second battery pack, wherein the heat dissipation device is arranged between the first battery pack and the second battery pack; the first heat-conducting pad, the first radiating fin, the third heat-conducting pad, the second radiating fin and the second heat-conducting pad are sequentially arranged between the first battery pack and the second battery pack, the first radiating fin and the third heat-conducting pad are arranged, and the fourth heat-conducting pad is arranged at the top end of the second radiating fin.

Preferably, the battery pack structure with the heat dissipation device is characterized in that the heat dissipation device is fixedly connected with the first battery pack through a screw and a nut.

Preferably, the heat dissipation device is fixedly connected with the second battery pack through a screw and a nut.

Preferably, in the battery pack structure with the heat dissipation device, a protection plate is disposed at a top end of the fourth heat conduction pad.

Preferably, the battery pack structure with the heat dissipation device is characterized in that the first heat dissipation fin is provided with a first heat dissipation fin and a second heat dissipation fin, the second heat dissipation fin is provided with a third heat dissipation fin and a fourth heat dissipation fin, the second heat dissipation fin is connected with the fourth heat conduction pad, and the fourth heat dissipation fin is connected with the fourth heat conduction pad.

Preferably, in the battery pack structure with the heat dissipation device, a heat conductive adhesive is disposed between the case and the first heat dissipation fin.

Preferably, in the battery pack structure with the heat dissipation device, a heat-conducting adhesive is disposed between the case and the third heat dissipation fin.

According to the above technical scheme, the embodiment of the utility model has following effect at least: the utility model discloses a set up heat transfer device, in time discharging the atmosphere with group battery production of heat for thermal giving off improves the life of battery package, has increased the security performance of battery package.

Drawings

FIG. 1 is a schematic structural view of an embodiment of the present invention;

FIG. 2 is an exploded view of an embodiment of the present invention;

FIG. 3 is an exploded view of a battery pack according to an embodiment of the present invention;

FIG. 4 is a schematic view of the first and second heat dissipation plates according to the embodiment of the present invention;

wherein: 11-upper cover, 12-box, 13-lower cover, 14-battery pack, 141-heat dissipation device, 142-first battery pack, 143-second battery pack, 144-protection plate, 145-screw, 146-nut, 1411-first heat dissipation fin, 1412-second heat dissipation fin, 1413-first heat conduction pad, 1414-second heat conduction pad, 1415-third heat conduction pad, 1416-fourth heat conduction pad, 14111-first heat dissipation fin, 14112-second heat dissipation fin, 14121-third heat dissipation fin and 14122-fourth heat dissipation fin.

Detailed Description

The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of 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 therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. 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," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

As shown in fig. 1 to 4, the utility model discloses a battery pack structure with a heat dissipation device, which comprises an upper cover 11, a box body 12, a lower cover 13 and a battery pack 14, wherein the battery pack 14 comprises a heat dissipation device 141, a first battery pack 142 and a second battery pack 143; the box 12 is a box structure with two open ends, the upper end of the box 12 is provided with an upper cover 11, the bottom end of the box 12 is provided with a lower cover 13, the battery pack 14 is arranged in the box 12, the first battery pack 142 and the second battery pack 143 are arranged on two sides of the heat dissipation device 141, the first battery pack 142 is fixedly connected with the heat dissipation device 141, and the second battery pack 143 is fixedly connected with the heat dissipation device 141.

The heat dissipation device 141 includes a first heat sink 1411, a second heat sink 1412, a first thermal pad 1413, a second thermal pad 1414, a third thermal pad 1415, and a fourth thermal pad 1416; a first heat conduction pad 1413, a first cooling fin 1411, a third heat conduction pad 1415, a second cooling fin 1412, a second heat conduction pad 1414, a first cooling fin 1411, a third heat conduction pad 1415, a first cooling fin 1411, a second cooling fin 1412, a fourth heat conduction pad 1416 and a protection plate 144 are sequentially arranged between the first battery pack 142 and the second battery pack 143, wherein the top ends of the second cooling fin 1412 are provided with the fourth heat conduction pad 1416, and the top ends of the fourth heat conduction pad 1416 are also provided with the protection plate 144.

The top end of the first cooling fin 1411 is provided with a first cooling fin 14111 and a second cooling fin 14112, the second cooling fin 1412 is provided with a third cooling fin 14121 and a fourth cooling fin 14122, and the second cooling fin 14112 and the fourth cooling fin 14122 are connected with the protection plate 144, wherein the connection specifically means gapless close contact for heat transfer; set up heat-conducting glue between first radiating fin 14111 and the box 12, also set up heat-conducting glue between third radiating fin 14121 and the box 12, the purpose of so setting up, heat-conducting glue is filled in first radiating fin 14111, third radiating fin 14121, between the box 12, is favorable to eliminating radiating fin and box 12's clearance, is favorable to the heat conduction diffusion.

The materials of the first heat conducting pad 1413, the second heat conducting pad 1414, the third heat conducting pad 1415 and the fourth heat conducting pad 1416 are heat conducting silica gel sheets, the heat conducting silica gel sheets are silica gel as base materials, various auxiliary materials such as metal oxides are added, a heat conducting medium material synthesized by a special process is also called as a heat conducting silica gel pad, a heat conducting silica gel sheet, a soft heat conducting pad, a heat conducting silica gel pad and the like in the industry, the heat conducting silica gel sheets, the soft heat conducting pad, the heat conducting silica gel pad and the like are specially produced by a design scheme of utilizing gaps to transfer heat, the gaps can be filled, a heat channel between a heating part and a heat radiating part is opened, the heat transfer efficiency is effectively improved, and the effects of insulation, shock absorption and the like are also achieved,

the heat dissipation device 141 is fixedly connected with the first battery pack 142 and the second battery pack 143 through bolts 145 and nuts 146, the bolts 145 sequentially penetrate through the first battery pack 142, the first heat conduction pad 1413, the first heat dissipation fin 1411, the third heat conduction pad 1415, the second heat dissipation fin 1412, the second heat conduction pad 1414 and the second battery pack 143, and the nuts 146 are screwed on the end face, away from the first battery pack 142, of the second battery pack 143.

In order to firmly connect the heat sink 141 with the first battery pack 142 and the second battery pack 143, at least 2 sets of bolts 145 and nuts 146 are provided.

The working principle is that the upper heat of the protection plate 144 is transferred to the second heat dissipation fins 14112 and the fourth heat dissipation fins 14122 through the fourth heat conduction pad 1416, the heat is transferred to the first heat dissipation fins 14111 through the internal circulation of the first heat dissipation fins 1411, the heat is transferred to the third heat dissipation fins 14121 through the internal circulation of the second heat dissipation fins 1412, and finally the heat is transferred to the box body 12 through the first heat dissipation fins 14111 and the third heat dissipation fins 14121 and the paste-shaped heat conduction glue between the box body 12 and the first heat dissipation fins 14111 and the third heat dissipation fins, and finally the heat on the protection plate 144 is transferred to the atmosphere.

For the heat generated by the first cell stack 142 and the second cell stack 143: the heat generated by the first battery pack 142 and the second battery pack 143 is transferred to the first heat dissipation fin 1411 and the second heat dissipation fin 1412 through the first heat conduction pad 1413 and the second heat conduction pad 1414, the heat is transferred to the box body 12 through the first heat dissipation fin 14111 and the third heat dissipation fin 14121 and the paste-like heat conduction glue between the box body 12 and the first heat dissipation fin 14111 and the third heat dissipation fin, and finally the heat generated by the first battery pack 142 and the second battery pack 143 is transferred to the atmosphere.

It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of the invention or which are equivalent to the scope of the invention are embraced by the invention.

Claims

1. The battery pack structure with the heat dissipation device is characterized by comprising an upper cover (11), a box body (12), a lower cover (13) and a battery pack (14), wherein the box body (12) is of a box body structure with openings at two ends, the upper cover (11) is arranged at one opening of one end of the box body (12), the lower cover (13) is arranged at the other opening of the box body (12), and the battery pack (14) is arranged in the box body (12); the battery pack (14) comprises a heat dissipation device (141), a first battery pack (142) and a second battery pack (143), the first battery pack (142) and the second battery pack (143) are fixedly arranged on the heat dissipation device (141), and the heat dissipation device (141) comprises a first cooling fin (1411), a second cooling fin (1412), a first heat conduction pad (1413), a second heat conduction pad (1414), a third heat conduction pad (1415) and a fourth heat conduction pad (1416); a first heat conduction pad (1413), a first radiating fin (1411), a third heat conduction pad (1415), a second radiating fin (1412), a second heat conduction pad (1414) and a fourth heat conduction pad (1416) are sequentially arranged between the first battery pack (142) and the second battery pack (143), and the top end of the second radiating fin (1412) is provided with the fourth heat conduction pad (1416).

2. The battery pack structure with the heat dissipation device as claimed in claim 1, wherein the heat dissipation device 141 and the first battery pack (142) are fixedly connected by a screw (145) and a nut (146).

3. The battery pack structure with the heat dissipation device as claimed in claim 1, wherein the heat dissipation device 141 and the second battery pack (143) are fixedly connected by a screw (145) and a nut (146).

4. The battery pack structure with the heat dissipating device as claimed in claim 1, wherein a protective plate (144) is disposed on top of the fourth thermal pad (1416).

5. The battery pack structure with heat dissipating device of claim 1, wherein the first heat sink (1411) is provided with a first heat dissipating fin (14111), a second heat dissipating fin (14112), the second heat sink (1412) is provided with a third heat dissipating fin (14121) and a fourth heat dissipating fin (14122), the second heat dissipating fin (14112) is connected to the fourth thermal pad (1416), and the fourth heat dissipating fin (14122) is connected to the fourth thermal pad (1416).

6. The battery pack structure with the heat dissipating device according to claim 5, wherein a thermally conductive adhesive is provided between the case (12) and the first heat dissipating fin (14111).

7. The battery pack structure with a heat dissipating device according to claim 5, wherein a thermally conductive adhesive is provided between the case (12) and the third heat dissipating fin (14121).