CN211376696U

CN211376696U - Lithium battery heat radiation structure

Info

Publication number: CN211376696U
Application number: CN201922037470.6U
Authority: CN
Inventors: 张琳
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-22
Filing date: 2019-11-22
Publication date: 2020-08-28
Anticipated expiration: 2029-11-22

Abstract

The utility model discloses a lithium battery heat radiation structure, including electric core and battery case, the outside of electric core is wrapped up by a heating panel, one side that battery case was kept away from to the heating panel is equipped with a plurality of supporting shoes, battery case is connected to the supporting shoe, battery case, be formed with a plurality of sealed cavities between the heating panel, the coolant liquid has been stored in sealed intracavity, all be equipped with a connection channel on the supporting shoe, connection channel's both ends all switch on mutually with a sealed cavity, insert a heat absorption piece in the connection channel, the both ends of heat absorption piece all are located sealed cavity, two adjacent heat absorption pieces switch on mutually through a soft area, soft area is located sealed cavity, one side in soft area is equipped with a bellying. The utility model has simple structure, heat dissipation is carried out through the cooling liquid, the surface is damaged in time, the cooling liquid is leaked, and continuous heat dissipation can be carried out, thereby increasing the safety; has good pressure resistance and is not easy to damage.

Description

Lithium battery heat radiation structure

Technical Field

The utility model relates to a lithium cell field, concretely relates to lithium cell heat radiation structure.

Background

The lithium battery has the advantages of high voltage, high specific energy, long cycle life, long storage time and the like, and is widely applied to portable electronic equipment such as mobile phones, digital cameras and portable computers, and also widely applied to large and medium-sized electric equipment such as electric automobiles, electric bicycles, electric tools and the like.

At present, many lithium batteries are burnt due to poor heat dissipation of the lithium batteries, so that serious safety accidents are caused.

Disclosure of Invention

The utility model aims to solve the technical problem that a lithium battery heat radiation structure that can solve above-mentioned problem has good thermal diffusivity and crushing resistance, and life is longer.

The utility model discloses a realize through following technical scheme: the utility model provides a lithium battery heat radiation structure, including electric core and battery case, the outside of electric core is wrapped up by a heating panel, one side that battery case was kept away from to the heating panel is equipped with a plurality of supporting shoes, battery case is connected to the supporting shoe, battery case, be formed with a plurality of sealed cavities between the heating panel, the coolant liquid is stored in sealed cavity, all be equipped with a linking channel on the supporting shoe, linking channel's both ends all switch on with a sealed cavity mutually, insert a heat absorption piece in the linking channel, the both ends of heat absorption piece all are located sealed cavity, two adjacent heat absorption pieces switch on mutually through a soft area, soft area is located sealed cavity, one side in soft area is equipped with a bellying, the one end of bellying and battery case's inner wall contact, be equipped with a cavity in the.

As preferred technical scheme, one side that electric core was kept away from to the fin is equipped with a plurality of recesses, and the recess switches on with sealed cavity mutually, and the recess internal fixation has the layer that absorbs water, and the layer that absorbs water absorbs the coolant liquid.

As the preferred technical scheme, a plurality of heat dissipation holes are formed in the battery shell and communicated with the connecting channel.

According to the preferable technical scheme, the heat conducting piece and the heat absorbing piece are made of metal, the heat absorbing piece is sealed through waterproof heat conducting glue, and the joint of the battery shell and the supporting block is sealed through the waterproof heat conducting glue.

According to the preferable technical scheme, a plurality of wiring channels are arranged on the supporting block, water absorbing strips are arranged in the wiring channels, a heat conducting wire is inserted into each water absorbing strip, a plurality of extending strips are arranged on each heat conducting wire, and each extending strip penetrates through the supporting block to be in contact with the battery shell.

The utility model has the advantages that: the utility model has simple structure, heat dissipation is carried out through the cooling liquid, the surface is damaged in time, the cooling liquid is leaked, and continuous heat dissipation can be carried out, thereby increasing the safety; has good pressure resistance and is not easy to damage.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is an overall structure diagram of the present invention;

FIG. 2 is a partial structure view of the supporting block of the present invention;

fig. 3 is a structural view of the soft belt of the present invention.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.

In the description of the present invention, it is to be understood that the terms "one end", "the other end", "the outside", "upper", "inside", "horizontal", "coaxial", "central", "end", "length", "outer end", 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 device or element 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, in the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

The use of terms herein such as "upper," "above," "lower," "below," and the like in describing relative spatial positions is for the purpose of facilitating description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The spatially relative positional terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In the present invention, unless otherwise explicitly specified or limited, the terms "set", "coupled", "connected", "penetrating", "plugging", and the like are to be understood in a broad sense, and may be, for example, fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

As shown in fig. 1 to 3, the battery comprises a battery core 1 and a battery case 2, the outside of the battery core 1 is wrapped by a heat dissipation plate 3, the heat dissipation plate is also made of metal, one side of the heat dissipation plate 3 away from the battery case 2 is provided with a plurality of supporting blocks 5, the supporting blocks 5 are connected with the battery case 2, a plurality of sealing chambers 6 are formed between the battery case 2 and the heat dissipation plate 3, cooling liquid 7 is stored in the sealing chambers, the supporting blocks 5 are respectively provided with a connecting channel, both ends of the connecting channel are respectively communicated with one sealing chamber 6, a heat absorption sheet 8 is inserted into the connecting channel, both ends of the heat absorption sheet 8 are respectively located in the sealing chambers 6, two adjacent heat absorption sheets 8 are communicated with each other through a soft belt 9, the soft belt 9 is located in the sealing chamber 6, one side of the soft belt 9 is provided with a protruding portion 911, one end of the protruding, a cavity is arranged in the protruding part 911, and a heat conducting member 11 is arranged in the cavity and used for conducting heat and absorbing heat.

Wherein, the fin is equipped with a plurality of recesses apart from the one side of electric core 1, and the recess switches on mutually with sealed cavity 6, and the recess internal fixation has the layer 33 that absorbs water, and the layer 33 that absorbs water absorbs coolant 7.

Wherein, the battery case 2 is provided with a plurality of heat dissipation holes 211, and the heat dissipation holes 211 are communicated with the connection channel.

The heat conducting piece 11 and the heat absorbing sheet 8 are both made of metal, the heat absorbing sheet 8 is sealed through waterproof heat conducting glue, and the joint of the battery shell 2 and the supporting block 5 is sealed through the waterproof heat conducting glue.

Wherein, a plurality of wiring passageways have been arranged on supporting shoe 5, have arranged the strip of absorbing water 13 in the wiring passageway, insert a heat-conducting wire 15 in the strip of absorbing water 13, be equipped with many extension strips 151 on the heat-conducting wire 15, extension strip 151 passes supporting shoe 5 and contacts with battery case 2, has increased the heat-conducting surface of heat-conducting wire, and the heat-conducting wire is the metal heat-conducting wire.

The waterproof heat-conducting glue is named as waterproof heat-conducting glue with application number 201711386700.9, and is good in waterproof heat conductivity.

The working principle is as follows: when the device is used, heat generated by the battery core is discharged through the heat dissipation plate, and the cooling liquid is convenient for cooling the heat. The water absorption layer and the water absorption strip made of sponge in the whole device absorb the cooling liquid, the water absorption strip increases the cooling range of the cooling liquid, heat dissipation is facilitated, the shell is damaged in time, and the cooling liquid can be partially absorbed and is difficult to leak so as to be used for continuous cooling and heat dissipation. The heat of the battery core is discharged outwards through the heat absorbing sheet and the heat dissipation holes and is used for heat dissipation.

The soft belt is made of flame-retardant silica gel or rubber, and the soft belt is easy to shake in equipment such as automobiles under the action of the heat conducting piece, so that the heat absorbing sheet is driven to shake, the heat on the heat absorbing sheet is accelerated to be dissipated, and the heat dissipation is faster.

Whole supporting shoe also is fire-retardant rubber and makes, and the supporting shoe plays a effect of supporting the resistance to compression, and metal-support's heat conduction silk has also increased structural strength simultaneously for whole device is difficult for the atress damage more.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the creative work should be covered within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims

1. The utility model provides a lithium cell heat radiation structure which characterized in that: including electric core (1) and battery case (2), the outside of electric core (1) is wrapped up by a heating panel (3), one side that battery case (2) were kept away from in heating panel (3) is equipped with a plurality of supporting shoes (5), battery case (2) is connected to supporting shoe (5), battery case (2), be formed with a plurality of sealed cavities (6) between heating panel (3), coolant liquid (7) are stored to sealed intracavity, all be equipped with a linking channel on supporting shoe (5), linking channel's both ends all switch on with a sealed cavity (6), insert a heat absorption piece (8) in the linking channel, the both ends of heat absorption piece (8) all are located sealed cavity (6), two adjacent heat absorption pieces (8) switch on each other through a soft area (9), soft area (9) are located sealed cavity (6), one side of soft area (9) is equipped with a bellying (911), one end of the bulge part (911) is contacted with the inner wall of the battery shell (2), a cavity is arranged in the bulge part (911), and a heat conducting piece (11) is arranged in the cavity.

2. The lithium battery heat dissipation structure of claim 1, wherein; one side of the cooling fin, which is far away from the battery core (1), is provided with a plurality of grooves, the grooves are communicated with the sealing cavity (6), a water absorbing layer (33) is fixed in the grooves, and the water absorbing layer (33) absorbs the cooling liquid (7).

3. The lithium battery heat dissipation structure of claim 1, wherein: a plurality of heat dissipation holes (211) are formed in the battery shell (2), and the heat dissipation holes (211) are communicated with the connecting channel.

4. The lithium battery heat dissipation structure of claim 1, wherein: the heat conducting piece (11) and the heat absorbing sheet (8) are both made of metal, the heat absorbing sheet (8) is sealed through waterproof heat conducting glue, and the joint of the battery shell (2) and the supporting block (5) is sealed through the waterproof heat conducting glue.

5. The lithium battery heat dissipation structure of claim 1, wherein: a plurality of wiring channels are arranged on the supporting block (5), water absorbing strips (13) are arranged in the wiring channels, a heat conducting wire (15) is inserted into each water absorbing strip (13), a plurality of extending strips (151) are arranged on each heat conducting wire (15), and each extending strip (151) penetrates through the supporting block (5) to be in contact with the battery shell (2).