CN212136521U

CN212136521U - Ventilation and heat dissipation structure of battery box

Info

Publication number: CN212136521U
Application number: CN202020876104.XU
Authority: CN
Inventors: 郭功勋; 伍星星; 周鹏程; 贺磊; 许利平; 郭平香; 戴建雄
Original assignee: DONGGUAN YANGTIAN ELECTRONIC TECHNOLOGY CO LTD
Current assignee: DONGGUAN YANGTIAN ELECTRONIC TECHNOLOGY CO LTD
Priority date: 2020-05-22
Filing date: 2020-05-22
Publication date: 2020-12-11
Anticipated expiration: 2030-05-22

Abstract

The utility model belongs to the technical field of battery box equipment, concretely relates to ventilation cooling structure of battery box, including box and a plurality of group battery, the bottom fixed mounting of box has support piece, and the group battery erects in the box through support piece, has the clearance between every group battery, and the one side that support piece and group battery are connected is provided with a plurality of heat dissipation through-holes, and air exit and first air intake have been seted up respectively at the both ends that are located the group battery to the box, and air exit department is provided with radiator fan. Compared with the prior art, the utility model discloses a set up the support piece that has the through-hole, avoided the direct contact of group battery with the box, reduced the area that the group battery was sheltered from for on the incasement air current can blow the group battery more comprehensively, improved radiating efficiency, prevent local overheat, simultaneously, have the clearance between the group battery, and formed the ventilation structure of convection current between air exit and the first air intake, further improved radiating effect.

Description

Ventilation and heat dissipation structure of battery box

Technical Field

The utility model belongs to the technical field of battery box equipment, concretely relates to ventilation cooling structure of battery box.

Background

During the charging and discharging processes of the lithium ion battery, various chemical reactions can occur inside the battery, so that a large amount of heat is generated, and the temperature of the battery pack is increased. If the battery pack is in a high-temperature environment for a long time, the aging process of the battery can be accelerated, the performance of the lithium ion battery can be affected, the service life of the lithium ion battery can be shortened, and even thermal runaway can be caused in severe cases, so that the ventilation and heat dissipation design of the battery box is very important.

The battery box among the prior art generally with lithium ion battery group snap-on inside the battery box, and set up like this and can lead to the face of group battery and box inner wall laminating can't be blown by radiator fan, can not dispel the heat effectively, moreover, the battery box on the market only is provided with a simple and easy air exit usually, the radiating effect is relatively poor, long-term use still accumulates a large amount of dusts easily, and then leads to the battery to receive the pollution.

In view of the above, there is a need for rational improvement of the above prior art to meet the actual production needs.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the ventilation and heat dissipation structure of the battery box is provided, and the problem of poor heat dissipation effect of the battery box is effectively solved through the ventilation and heat dissipation structure.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a ventilation cooling structure of battery box, includes box and a plurality of group battery, the bottom fixed mounting of box has support piece, the group battery passes through support piece erects in the box, every have the clearance between the group battery, support piece with the one side that the group battery is connected is provided with a plurality of radiating through-holes, the box is lieing in air exit and first air intake have been seted up respectively to the both ends of group battery, air exit department is provided with radiator fan.

As right the utility model discloses in the improvement of ventilation cooling structure of battery box, the box is including enclosing panel, curb plate, bottom plate, end plate and the roof of establishing each other, wherein, the panel with the end plate sets up relatively, the air exit set up in the panel, first air intake set up in the end plate, support piece install in the bottom plate. The panel and the end plate are arranged on the surfaces which are oppositely arranged, and the first air inlet and the air outlet are arranged, so that a convection air channel is formed between the panel and the end plate, heat generated by the battery pack between the panel and the end plate can be effectively taken away, and the heat dissipation effect is improved.

As right the utility model discloses in the improvement of the ventilation cooling structure of battery box, the second air intake has been seted up on the roof. The second air inlet is formed in the top plate, so that the air inlet volume can be further increased, and the heat dissipation efficiency is improved.

As right the utility model discloses in the improvement of the ventilation cooling structure of battery box, the air exit first air intake with the second air intake all is provided with dustproof filter screen. The dustproof filter screen is additionally arranged, so that the air is filtered, dust is prevented from entering the box body, and the condition of dust deposition is reduced.

As right the utility model discloses in the improvement of ventilation cooling structure of battery box, support piece is including laminating portion, kink and the installation department that connects gradually, laminating portion with the group battery laminating is connected, installation department fixed mounting in the box, the heat dissipation through-hole set up in laminating portion. The fitting part is connected with the mounting part through the bending part, so that the support piece forms a structure in a shape like a Chinese character 'ji', and the strength of the structure is improved.

As an improvement to the ventilation and heat dissipation structure of the battery box of the present invention, the supporting member is an aluminum-based supporting member or a copper-based supporting member. Copper and aluminium are the metal that heat conductivility is stronger, when laminating with the group battery, can effectively dispel the heat to the group battery, nevertheless, consider structural strength, can preferentially adopt aluminium base support piece, on the other hand has also saved the cost of production.

As right the utility model discloses in the improvement of ventilation cooling structure of battery box, laminating portion with the coating has the heat conduction coating between the group battery. Set up the heat conduction coating between laminating portion and group battery, can improve the heat conductivility between support piece and the group battery for radiating efficiency.

As right the utility model discloses in the ventilation cooling structure's of battery box improvement, the heat conduction coating is high heat conduction silicone grease layer or carbon back heat conduction coating.

As right the utility model discloses in the improvement of ventilation cooling structure of battery box, the panel is provided with the connector, the connector with group battery electric connection. The connector is used for communicating the outside equipment of battery box with the group battery, realizes charge-discharge.

As right the utility model discloses in the improvement of the ventilation cooling structure of battery box, the air exit is at least one, radiator fan's quantity with the quantity phase-match of air exit. In order to enhance the air exhaust efficiency of the box body, a plurality of air exhaust ports can be arranged, but reasonable adaptation is needed according to the area of the panel.

The beneficial effects of the utility model reside in that: compared with the prior art, the utility model discloses a set up the support piece that has the through-hole, avoided the direct contact of group battery with the box, reduced the area that the group battery was sheltered from for on the incasement air current can blow the group battery more comprehensively, improved radiating efficiency, prevent local overheat, simultaneously, have the clearance between the group battery, and formed the ventilation structure of convection current between air exit and the first air intake, further improved radiating effect.

Drawings

The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided to explain the invention and not to constitute an undue limitation on the invention. In the drawings:

fig. 1 is a schematic structural view of the present invention;

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

FIG. 3 is a schematic structural view of a supporting member according to the present invention;

wherein, 1-a box body; 2-a battery pack; 3-a support; 4-a heat dissipation fan; 5, dust-proof filter screen; 11-an air outlet; 12-a first air inlet; 13-a panel; 14-side plates; 15-a base plate; 16-an end plate; 17-a top plate; 31-a bonding portion; 32-a bending part; 33-a mounting portion; 131-a connector; 171-second air inlet.

Detailed Description

As used in the specification and in the claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, within which a person skilled in the art can solve the technical problem to substantially achieve the technical result.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", horizontal "and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be 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 according to specific situations by those skilled in the art.

The present invention will be described in further detail with reference to the accompanying drawings, which are not intended to limit the present invention.

As shown in fig. 1 to 3, a ventilation and heat dissipation structure of a battery box comprises a box body 1 and a plurality of battery packs 2, wherein a support piece 3 is fixedly installed at the bottom of the box body 1, the battery packs 2 are erected in the box body 1 through the support piece 3, a gap is formed between each battery pack 2, one side, connected with the battery packs 2, of the support piece 3 is provided with a plurality of heat dissipation through holes, the box body 1 is respectively provided with an air outlet 11 and a first air inlet 12 at two ends of each battery pack 2, and the air outlet 11 is provided with a heat dissipation fan 4. The utility model discloses an in the scheme, support piece 3 can adopt aluminium base support piece, it supports group battery 2 to have a plurality of heat dissipation through-hole support piece 3 through the setting, sufficient structural strength has been guaranteed on the one hand, on the other hand, group battery 2 and box 1 direct contact have been avoided, through a plurality of heat dissipation through-holes, the area that group battery 2 was sheltered from has been reduced, make the air current in the box 1 blow to group battery 2 more comprehensively on, and also can carry out heat conduction to group battery 2, thereby radiating efficiency has been improved, prevent group battery 2 local overheat, furthermore, the clearance has between the group battery 2, and form the ventilation structure of convection current between air exit 11 and the first air intake 12, radiating effect has been improved widely.

Preferably, the box 1 includes a panel 13, a side plate 14, a bottom plate 15, an end plate 16 and a top plate 17, wherein the panel 13 and the end plate 16 are disposed opposite to each other, the air outlet 11 is disposed on the panel 13, the first air inlet 12 is disposed on the end plate 16, and the supporting member 3 is mounted on the bottom plate 15. The panel 13 and the end plate 16 are located on the opposite surfaces, and a convection air duct is formed between the panel 13 and the end plate 16 by arranging the first air inlet 12 and the air outlet 11, so that heat generated by the battery pack 2 between the panel 13 and the end plate 16 can be effectively taken away, and the heat dissipation effect is improved. In addition, in order to guarantee great intake, the utility model provides a second air intake 171 has still been seted up on roof 17, and corresponding with this, air exit 11 also can set up to at least one, and radiator fan 4's quantity and air exit 11's quantity phase-match have further improved radiating effect.

Preferably, the air outlet 11, the first air inlet 12 and the second air inlet 171 are all provided with a dustproof filter screen 5. The dustproof filter screen 5 is additionally arranged, so that the air is filtered, dust is prevented from entering the box body 1, and the condition of dust deposition is reduced.

Preferably, the support member 3 includes a fitting portion 31, a bending portion 32, and a mounting portion 33 that are connected in sequence, the fitting portion 31 is fitted and connected with the battery pack 2, the mounting portion 33 is fixedly mounted on the box 1, and the heat dissipation through hole is provided in the fitting portion 31. The attaching portion 31 and the mounting portion 33 are connected by the bent portion 32, so that the support 3 has a zigzag structure, and the strength of the structure is improved.

Preferably, the heat conduction coating is coated between the attaching portion 31 and the battery pack 2, and in this embodiment, the heat conduction coating can adopt a high heat conduction silicone grease layer, so that the heat conduction capability between the support member 3 and the battery pack 2 is effectively improved, and the heat dissipation efficiency is accelerated.

Preferably, the panel 13 is provided with a connector 131, and the connector 131 is electrically connected to the battery pack 2. The connector 131 is used to communicate the device outside the battery box with the battery pack 2, thereby realizing the function of charging and discharging.

While the foregoing description shows and describes several preferred embodiments of the invention, it is to be understood, as noted above, that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive of other embodiments, and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed above, or as otherwise known in the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims

1. The utility model provides a ventilation cooling structure of battery box which characterized in that: including box (1) and a plurality of group battery (2), the bottom fixed mounting of box (1) has support piece (3), group battery (2) pass through support piece (3) erect in box (1), every have the clearance between group battery (2), support piece (3) with the one side that group battery (2) are connected is provided with a plurality of heat dissipation through-holes, box (1) is lieing in air exit (11) and first air intake (12) have been seted up respectively to the both ends of group battery (2), air exit (11) department is provided with radiator fan (4).

2. The ventilation and heat dissipation structure of a battery box according to claim 1, characterized in that: the box (1) is including enclosing panel (13), curb plate (14), bottom plate (15), end plate (16) and roof (17) of establishing each other, wherein, panel (13) with end plate (16) set up relatively, air exit (11) set up in panel (13), first air intake (12) set up in end plate (16), support piece (3) install in bottom plate (15).

3. The ventilation and heat dissipation structure of a battery box according to claim 2, characterized in that: and a second air inlet (171) is formed in the top plate (17).

4. The ventilation and heat dissipation structure of a battery box according to claim 3, characterized in that: the air outlet (11), the first air inlet (12) and the second air inlet (171) are provided with dustproof filter screens (5).

5. The ventilation and heat dissipation structure of a battery box according to claim 1, characterized in that: support piece (3) are including laminating portion (31), kink (32) and installation department (33) that connect gradually, laminating portion (31) with battery pack (2) laminating is connected, installation department (33) fixed mounting in box (1), the heat dissipation through-hole set up in laminating portion (31).

6. The ventilation and heat dissipation structure of a battery box according to claim 5, characterized in that: the support (3) is an aluminum-based support or a copper-based support.

7. The ventilation and heat dissipation structure of a battery box according to claim 5, characterized in that: and a heat-conducting coating is coated between the attaching part (31) and the battery pack (2).

8. The ventilation and heat dissipation structure of a battery box according to claim 7, characterized in that: the heat conduction coating is a high heat conduction silicone grease layer or a carbon-based heat conduction coating.

9. The ventilation and heat dissipation structure of a battery box according to claim 2, characterized in that: the panel (13) is provided with a connector (131), and the connector (131) is electrically connected with the battery pack (2).

10. The ventilation and heat dissipation structure of a battery box according to claim 2, characterized in that: the number of the exhaust openings (11) is at least one, and the number of the cooling fans (4) is matched with that of the exhaust openings (11).