CN219086073U

CN219086073U - Cooling battery box

Info

Publication number: CN219086073U
Application number: CN202320037680.9U
Authority: CN
Inventors: 徐晨曦
Original assignee: Cornex New Energy Co ltd
Current assignee: Cornex New Energy Co ltd
Priority date: 2023-01-07
Filing date: 2023-01-07
Publication date: 2023-05-26
Anticipated expiration: 2033-01-07

Abstract

The utility model provides a cooling battery box, which comprises a box body, wherein the box body is oppositely arranged on the ground; the opposite end surfaces of the box body are provided with through holes; the at least one cross beam is arranged in the box body, the cross beam is hollow, and the at least one cross beam extends along the length extension direction of the box body and is communicated with the through hole on the box body; at least one battery module arranged between the inner surface of the box body and the outer surface of the cross beam; and at least one battery module is arranged in a clearance with the outer surface of the cross beam; the at least one refrigerating piece is arranged between the gap between the at least one battery module and the cross beam, the cold end of the at least one refrigerating piece is propped against the outer surface of the at least one battery module, and the hot end of the at least one refrigerating piece is propped against the outer surface of the cross beam; at least one end part of the axial extension direction of the through hole is embedded with an air supply mechanism, the refrigeration efficiency of the refrigeration mode is higher, the space in the battery box body is occupied, and the installation is simpler.

Description

Cooling battery box

Technical Field

The utility model relates to the technical field of batteries, in particular to a cooling battery box.

Background

The battery box is a group battery formed by a plurality of single batteries, a box body, a battery management system, related installation structural members and the like, and is provided with a battery box structure, battery box monitoring equipment, a battery box connector, battery box ring control equipment and the like which meet the standard, and the conventional energy storage battery box body generally adopts an air cooling mode to cool and dissipate heat of an electric core or adopts a liquid cooling box body to cool and dissipate heat.

Chinese patent publication No. CN103199203B discloses a lithium ion power battery box, including a battery box body for making the battery in its inside along setting arrangement direction interval arrangement and a basic wind channel of locating in the battery box body, the flow direction of basic wind channel is unanimous with setting arrangement direction, still be equipped with basic wind channel spaced be used for carrying cooling air strengthen cooling wind channel, strengthen cooling wind channel have be used for with cooling air guide battery box internal setting for cooling region the jet hole, cooling region is the battery of setting for the position along the interval between the preceding adjacent battery of battery in the battery arrangement direction or the position department.

The chinese patent with publication number CN211957764U discloses a battery pack box with side cooling module function, comprising a box body, wherein one end of the box body is provided with an opening, a stiffening beam is arranged in the box body, the lower end of the stiffening beam is fixed with the bottom plate of the box body, the two ends of the stiffening beam in the extending direction are respectively fixed with the side plates of the box body, a channel is arranged in the stiffening beam, and a water inlet and a water outlet are arranged on the channel.

In its comparison document 1 of current scheme, adopt the mode of forced air cooling to cool off, this scheme cooling efficiency is lower, and the cooling effect is very limited, in the comparison document 2, cools off through the mode of liquid cooling, but need arrange more liquid cooling pipeline and liquid cooling system in the box, leads to occupation inner space big, the installation difficulty, the cost is higher.

Disclosure of Invention

In view of the above, the utility model provides a cooling battery box which does not need a liquid cooling system, saves the space in the battery box, and has simple installation and high cooling efficiency.

The technical scheme of the utility model is realized as follows: the utility model provides a cooling battery box, comprising

The box body is oppositely arranged on the ground; the opposite end surfaces of the box body are provided with through holes;

the at least one cross beam is arranged in the box body, the cross beam is hollow, extends along the length extending direction of the box body and is communicated with the through hole in the box body;

at least one battery module arranged between the inner surface of the box body and the outer surface of the cross beam; and the at least one battery module is arranged in a clearance with the outer surface of the cross beam;

the cooling part is arranged between the at least one battery module and the gap of the cross beam, the cold end of the at least one cooling part is propped against the outer surface of the at least one battery module, and the hot end of the at least one cooling part is propped against the outer surface of the cross beam;

at least one end part of the axial extension direction of the through hole is embedded with an air supply mechanism.

On the basis of the technical scheme, preferably, the number of the refrigerating pieces is a plurality of, the plurality of the refrigerating pieces are respectively arranged on two sides of the beam along the direction, and the plurality of the refrigerating pieces on the same side are equidistantly arranged along the length direction of the beam.

On the basis of the above technical scheme, preferably, the battery module comprises a plurality of single battery cells sequentially arranged along the length direction of the box body, and the positions of the refrigerating pieces are in one-to-one correspondence with the positions of the single battery cells.

On the basis of the above technical scheme, preferably, the number of the cross beams is at least two, the at least two cross beams are arranged in the box along the extending direction perpendicular to the arrangement direction of the single battery cells, and the at least two cross beams are distributed at equal intervals.

On the basis of the above technical scheme, preferably, the through hole is provided with a width equal to the distance between the two inner side walls in the width direction of the cross beam.

On the basis of the technical proposal, the heat-conducting resin coating also preferably comprises a plurality of heat-conducting resin layers, wherein,

the heat conducting adhesive layers are respectively and correspondingly arranged on two sides of the length direction of each refrigerating piece, the surface of the heat conducting adhesive layer far away from one side of the cross beam is attached to the side face of the battery module, and the surface of the heat conducting adhesive layer far away from one side of the battery module is attached to the side face of the cross beam.

On the basis of the technical scheme, preferably, the heat conducting adhesive layer is heat conducting silica gel.

On the basis of the technical scheme, preferably, the refrigerating piece is a semiconductor refrigerating piece.

On the basis of the technical scheme, preferably, the air supply mechanism is a heat radiation fan.

Compared with the prior art, the cooling battery box has the following beneficial effects:

(1) The battery module can be refrigerated in a very short time through the refrigerating piece, meanwhile, heat generated by the refrigerating piece is transferred to the inside of the cross beam, and then the heat is blown out through the air supply mechanism, so that the radiating effect is achieved.

(2) The heat conduction glue layer can conduct heat rapidly, and the heat dissipation effect of the battery module is improved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a perspective view of a cooling battery case of the present utility model;

fig. 2 is a perspective view of a through-hole side case of the cooling battery case of the present utility model;

fig. 3 is a sectional view of a connection structure of a refrigerating element for cooling a battery box, a single cell and a cross beam according to the present utility model.

Detailed Description

The following description of the embodiments of the present utility model will clearly and fully describe the technical aspects of the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, are intended to fall within the scope of the present utility model.

As shown in fig. 1 to 3, a cooling battery case of the present utility model includes a case 1, a cross member 2, a battery module 3, a cooling member 4, and an air blowing mechanism 5.

The box body 1 is oppositely arranged on the ground, through holes 100 are formed in opposite end faces of the box body 1, at least one cross beam 2 is arranged in the box body 1, the cross beam 2 is hollow, the at least one cross beam 2 extends along the length extending direction of the box body 1 and is communicated with the through holes 100 in the box body 1, and at least one battery module 3 is arranged between the inner surface of the box body 1 and the outer surface of the cross beam 2; and the clearance between at least one battery module 3 and the surface of crossbeam 2 sets up, and at least one refrigeration piece 4 sets up between the clearance of at least one battery module 3 and crossbeam 2, and the cold junction of at least one refrigeration piece 4 supports with the surface of at least one battery module 3, and the hot junction of at least one refrigeration piece 4 supports with the surface of crossbeam 2, and at least one tip of through-hole 100 axial extension direction is embedded to be equipped with air supply mechanism 5.

It should be noted that, the box 1 in this embodiment is made by bending and welding sheet metal, or may be made by welding aluminum profiles, the cross beam 2 is disposed inside the box 1, the cross beam 2 is made by bending sheet metal, and the cross beam 2 serves as a reinforcing structure and cooling structure.

Specifically, the number of the cross beams 2 in the present embodiment is one, the cross beams 2 divide the interior of the case 1 into two identical accommodation spaces, and the battery modules 3 are mounted in the accommodation spaces.

It should be noted that, when the cooling member 4 is installed, the cooling surface of the cooling member 4 is attached to the outer side wall of the battery module, and the hot surface of the cooling member 4 is attached to the outer side wall of the cross beam 2.

And, battery control system BMS can all be installed to current battery box inside for gather the battery information and the control of group battery, this is prior art, does not make excessive redundant description here.

The refrigerating piece 4 is electrically connected with the battery control system BMS, when the battery control system receives a signal of overhigh temperature of the battery core, the semiconductor refrigeration can be started immediately, the refrigerating piece 4 can start refrigerating in a very short time, and compared with air cooling or liquid cooling, the refrigerating mode has the advantages of quicker reaction, higher refrigerating efficiency, smaller occupied internal space of the battery box body and simpler installation.

Specifically, the refrigerating element 4 in this embodiment is a semiconductor refrigerating sheet, and the air supply mechanism 5 is a heat dissipation fan.

As a preferred embodiment, the number of the refrigerating elements 4 in the present embodiment is a plurality, the plurality of refrigerating elements 4 are respectively disposed at two sides of the beam 2 along the direction, and the plurality of refrigerating elements 4 on the same side are disposed at equal intervals along the length direction of the beam 2.

The battery module 3 includes a plurality of unit cells 31 sequentially arranged along the length direction of the case 1, and the positions of the cooling members 4 are in one-to-one correspondence with the positions of the unit cells 31.

It should be noted that, each single battery cell 31 corresponds to the refrigerating element 4, so that all the single battery cells 31 of the battery module 3 can be cooled simultaneously, uniformly and rapidly during heat dissipation and refrigeration, and the heat dissipation effect of the battery module is improved.

In addition, each refrigerating piece 4 can be connected to the battery control system BMS, and one refrigerating piece 4 can be independently controlled to radiate heat through the battery control system BMS, so that the battery core with overhigh temperature can be independently cooled.

It can be understood that in this embodiment, each single battery cell 31 corresponds to one refrigerating element 4, and different sizes of refrigerating elements 4 can be selected according to different single battery cells 31 to meet different heat dissipation requirements.

In another embodiment, the number of the cross beams 2 is at least two, at least two cross beams 2 are arranged in the box body 1 along the extending direction perpendicular to the arrangement direction of the single battery cells 31, and at least two cross beams 2 are distributed at equal intervals.

When a plurality of cross members 2 are provided, the number of battery modules 3 is one more than the number of cross members 2.

As a preferred embodiment, the refrigerator further comprises a plurality of heat conducting glue layers 6, wherein the plurality of heat conducting glue layers 6 are respectively and correspondingly arranged on two sides of the length direction of each refrigerating piece 4, the surface of the heat conducting glue layer 6 on one side far away from the beam 2 is attached to the side face of the battery module 3, and the surface of the heat conducting glue layer 6 on one side far away from the battery module 3 is attached to the side face of the beam 2.

Specifically, the heat-conducting glue layer 6 is heat-conducting silica gel.

It is understood that the heat conductive adhesive layer 6 may be selected from heat conductive silica gel or heat conductive silicone, as long as it has good heat conductive effect and insulation property.

It should be noted that, the cooling member 4 is adhered between the battery module 3 and the cross beam 2 through the heat conducting adhesive layers 5 arranged at two sides, wherein the heat conducting adhesive layers 5 can conduct heat rapidly, so that the heat dissipation effect of the battery module 3 is improved.

It should be noted that, the through holes 100 formed on the outer side of the box body 1 oppositely are communicated with the inside of the hollow cross beam 2, so that a flowing heat dissipation channel is formed, wherein the temperature of the hot surface of the refrigerating piece 4 is conducted into the cross beam 2 through the attached heat conducting adhesive layer 6, the air supply mechanism 5 blows air, the air circulation of the heat dissipation channel inside the cross beam 2 is quickened, and then the internal heat can be taken away, so that the heat dissipation effect is achieved.

Working principle:

when battery management system BMS monitors that the temperature of the single cell 31 is too high, the refrigerating piece 4 is started, the refrigerating piece 4 is refrigerated on the cold face to cool the single cell 31 of the battery module 3, the hot face can generate heat simultaneously, heat is transferred to the inside of the cross beam 2 through the heat conducting silica gel 6, and at the moment, hot air in the cross beam 2 circulates through the air supply mechanism 5, so that the radiating effect is achieved.

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, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. A cooling battery box, characterized in that: comprising

The box body (1) is oppositely arranged on the ground; the opposite end surfaces of the box body (1) are provided with through holes (100);

the at least one cross beam (2) is arranged in the box body (1), the cross beam (2) is hollow, and the at least one cross beam (2) extends along the length extension direction of the box body (1) and is communicated with the through hole (100) in the box body (1);

at least one battery module (3) arranged between the inner surface of the box body (1) and the outer surface of the cross beam (2); and the at least one battery module (3) is arranged in a clearance with the outer surface of the cross beam (2);

the refrigerating piece (4) is arranged between the at least one battery module (3) and the gap of the cross beam (2), the cold end of the at least one refrigerating piece (4) is abutted against the outer surface of the at least one battery module (3), and the hot end of the at least one refrigerating piece (4) is abutted against the outer surface of the cross beam (2);

an air supply mechanism (5) is embedded in at least one end part of the axial extending direction of the through hole (100).

2. The cooling battery box as set forth in claim 1, wherein: the number of the refrigerating pieces (4) is a plurality of, the plurality of the refrigerating pieces (4) are respectively arranged on two sides of the beam (2) along the direction, and the plurality of the refrigerating pieces (4) on the same side are arranged at equal intervals along the length direction of the beam (2).

3. The cooling battery box as set forth in claim 2, wherein: the battery module (3) comprises a plurality of single battery cells (31) which are sequentially arranged along the length direction of the box body (1), and the positions of the refrigerating pieces (4) are in one-to-one correspondence with the positions of the single battery cells (31).

4. A cooling battery box as claimed in claim 3, wherein: the number of the cross beams (2) is at least two, the at least two cross beams (2) are arranged in the box body (1) along the extending direction perpendicular to the arrangement direction of the single battery cells (31), and the at least two cross beams (2) are distributed at equal intervals.

5. The cooling battery box as set forth in claim 1, wherein: the width of the through hole (100) is equal to the distance between the two inner side walls of the cross beam (2) in the width direction.

6. The cooling battery box as set forth in claim 1, wherein: also comprises a plurality of heat conducting glue layers (6), wherein,

the heat conducting glue layers (6) are respectively and correspondingly arranged on two sides of the length direction of each refrigerating piece (4), the surfaces of the heat conducting glue layers (6) on one side far away from the cross beam (2) are attached to the side faces of the battery modules (3), and the surfaces of the heat conducting glue layers (6) on one side far away from the battery modules (3) are attached to the side faces of the cross beam (2).

7. The cooling battery box as set forth in claim 6, wherein: the heat conducting adhesive layer (6) is heat conducting silica gel.

8. The cooling battery box as set forth in claim 1, wherein: the refrigerating piece (4) is a semiconductor refrigerating piece.

9. The cooling battery box as set forth in claim 1, wherein: the air supply mechanism (5) is a heat dissipation fan.