CN212161897U

CN212161897U - Air-cooled sealing structure of battery module

Info

Publication number: CN212161897U
Application number: CN202020712494.7U
Authority: CN
Inventors: 席兵荣; 李笑笑; 王华文; 许辉勇; 王明旺
Original assignee: Sunwoda Electric Vehicle Battery Co Ltd
Current assignee: Xinwangda Power Technology Co ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2020-12-15
Anticipated expiration: 2030-04-30

Abstract

The utility model discloses a battery module forced air cooling seal structure for sealed electric core, including seal assembly, including first sealing member and the second sealing member of connection on first sealing member, first sealing member or second sealing member are used for the valve portion or the root of sealed electric core. The first sealing element can seal the valve part of the battery cell and prevent harmful gas from flowing into the cooling channel between the first sealing element and the second sealing element when the battery cell is opened, and the second sealing element can seal the root part of the battery cell and prevent condensed water in the cooling channel from dripping into the root part of the battery cell and corroding the root part of the battery cell; first sealing member combines the second sealing member to solve the problem of harmful gas release and comdenstion water corruption electricity core together, has still constituted cooling channel between first sealing member and the second sealing member simultaneously, through once only setting up first sealing member and second sealing member promptly, has realized the function of three difference, and is high-efficient and convenient.

Description

Air-cooled sealing structure of battery module

Technical Field

The utility model relates to a cooling technology field, in particular to battery module forced air cooling seal structure.

Background

Battery modules are often used in mobile power consuming devices, such as electric vehicles. The battery module is the power supply unit that a plurality of electricity cores are constituteed promptly.

The battery cell is an electrochemical battery cell which comprises a positive electrode and a negative electrode, and further comprises a shell and an explosion-proof valve arranged on the shell, heat dissipation is needed when the battery cell works, and gas generated after the working time is long is discharged from the explosion-proof valve.

The battery module has sealed problem at present, and the battery module produces the comdenstion water easily in ventilation cooling to and the harmful inflammable gas that electric core produced when opening the relief valve discharges from cooling channel easily and causes harm for the human body.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a battery module forced air cooling seal structure can prevent that the comdenstion water from corroding the battery.

According to the utility model discloses a battery module forced air cooling seal structure of first aspect embodiment for seal electric core, including seal assembly, including first sealing member and connect the second sealing member on the first sealing member, first sealing member or the second sealing member pastes and leans on the lateral wall of electric core, first sealing member or the second sealing member is used for sealing the valve portion or the root of electric core.

According to the utility model discloses battery module forced air cooling seal structure has following beneficial effect at least: the first sealing element can be arranged to seal the valve part of the battery cell and prevent harmful gas from flowing into a cooling channel between the first sealing element and the second sealing element when the battery cell is opened, and the second sealing element can be arranged to seal the root part of the battery cell and prevent condensed water in the cooling channel from dripping into the root part of the battery cell and causing corrosion to the root part of the battery cell; the first sealing piece is combined with the second sealing piece to solve the problems of harmful gas release and condensate water corrosion of the battery core, and meanwhile, a cooling channel is formed between the first sealing piece and the second sealing piece, namely, the first sealing piece and the second sealing piece are arranged at one time, so that three different functions are realized, and the electric core sealing device is efficient and convenient.

According to some embodiments of the utility model, first sealing member with the second sealing member is in vertical corresponding setting, and is convenient promptly first sealing member with the space that presss from both sides between the second sealing member forms cooling channel, also is for the adaptation simultaneously electric core saves space.

According to the utility model discloses a some embodiments, first sealing member is provided with two at least about the direction, second sealing member one-to-one first sealing member, adjacent two be used for inserting between the first sealing member electric core satisfies a plurality ofly electric core seals, wholly promotes the performance of battery module.

According to some embodiments of the present invention, a cooling channel is formed between the lower bottom surface of the first sealing member and the upper bottom surface of the second sealing member, and the cooling channel is used for ventilation cooling of the battery cell.

According to the utility model discloses a some embodiments, first sealing member reaches the second sealing member all is the sealing strip, the sealing strip extends along the fore-and-aft direction, the sealing strip accounts for the space little, and is sealed effectual, supports the electricity core heat dissipation.

According to the utility model discloses a some embodiments, the rectangle is personally submitted in the truncation of sealing strip, makes arbitrary all can laminate in the four sides of sealing strip electricity core increases sealed effect.

According to the utility model discloses a some embodiments, it is a plurality of first sealing member is connected side by side in the left and right sides direction, makes a plurality of first sealing member can the bulk movement, makes things convenient for the dismouting.

According to some embodiments of the present invention, a support rod is connected between the first sealing member and the second sealing member, the support rod is used for supporting the first sealing member and the second sealing member to stably form the cooling channel, while facilitating installation and removal.

According to the utility model discloses a some embodiments still include the curb plate, the curb plate is connected first sealing member with between the second sealing member, the curb plate is used for guiding the wind direction, makes the air inlet even, and the cooling is balanced.

According to the utility model discloses a some embodiments still include the wind-collecting cover that sets up at the curb plate front end, reduce the dissipation of cold wind, concentrate the cooling, strengthen the cooling effect.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural view of an air-cooled sealing structure of a battery module according to an embodiment of the present invention;

fig. 2 is a side view, in cross section, of the air-cooled sealing structure of the battery module shown in fig. 1.

Sealing assembly 100, first sealing member 110, second sealing member 120, battery cell 200, and cooling channel

130. A support bar 140, a side plate 300 and a wind-collecting cover 400.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does 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 description of the present invention, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as excluding the number, and the terms greater than, less than, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1 and 2, an air-cooled sealing structure for a battery module, which is used for sealing a battery cell 200, includes a sealing assembly 100, where the sealing assembly 100 includes a first sealing member 110 and a second sealing member 120 connected to the first sealing member 110, the first sealing member 110 or the second sealing member 120 is attached to a side wall of the battery cell 200, and the first sealing member 110 or the second sealing member 120 is used for sealing a valve portion or a root portion of the battery cell 200. The first sealing member 110 is arranged to seal the valve portion of the battery cell 200, so as to prevent harmful gas from flowing into the cooling channel 130 between the first sealing member 110 and the second sealing member 120 when the battery cell 200 is opened, and the second sealing member 120 is arranged to seal the root of the battery cell 200, so as to prevent condensed water in the cooling channel 130 from dripping into the root of the battery cell 200 and corroding the root of the battery cell 200; the first sealing element 110 and the second sealing element 120 are combined together to solve the problems of harmful gas release and corrosion of the battery cell 200 by condensed water, and meanwhile, a cooling channel 130 is formed between the first sealing element 110 and the second sealing element 120, namely, three different functions are realized, and the operation is efficient and convenient by arranging the first sealing element 110 and the second sealing element 120 at one time. It can be understood that the battery cell 200 includes a housing, a positive electrode and a negative electrode, the housing is provided with an explosion-proof valve, and the battery cell 200 is commonly used for movable electric equipment such as an electric vehicle; the explosion-proof valve of the battery cell 200 is disposed at the upper end of the battery cell 200, the root of the battery cell 200 refers to the bottom of the battery cell 200, and the root of the sealed battery cell 200 refers to the first sealing member 110 or the second sealing member 120 disposed at a position close to the root of the battery cell 200, so as to prevent the condensed water from falling into the root of the battery cell 200.

In some embodiments, the first sealing element 110 and the second sealing element 120 are vertically disposed, that is, a space sandwiched between the first sealing element 110 and the second sealing element 120 is convenient to form the cooling channel 130, and the space is also adapted to the battery cell 200, so as to save space. It will be appreciated that if the first and

second seals

110, 120 do not vertically correspond, the sealing effect is poor and takes up too much space. It should be noted that the battery cell 200 is generally configured as a square body, and therefore the first sealing element 110 and the second sealing element 120 are correspondingly configured in the vertical direction to fit one surface of the battery cell 200 in the same plane, so as to facilitate sealing.

In some embodiments, at least two first sealing members 110 are arranged in the left-right direction, the second sealing members 120 correspond to the first sealing members 110 one by one, and the two adjacent first sealing members 110 are used for being inserted into the battery cells 200, so that the requirement of sealing a plurality of battery cells 200 is met, and the usability of the battery module is integrally improved.

In some embodiments, the cooling channel 130 is formed between the lower bottom surface of the first sealing member 110 and the upper bottom surface of the second sealing member 120, and the cooling channel 130 is used for ventilating and cooling the battery cell 200, it is understood that the width of the first sealing member 110 in the left-right direction is equal to the width of the second sealing member 120 in the left-right direction; it should be noted that the side walls of two adjacent battery cells 200, the lower bottom surface of the first sealing member 110 and the upper bottom surface of the second sealing member 120 enclose a cooling channel 130, and the cooling channel 130 is used for ventilation, and mainly cools the side walls of the battery cells 200, so that heat generated by the battery cells 200 during use is rapidly carried away by airflow.

In some embodiments, the first sealing element 110 and the second sealing element 120 are sealing strips, which extend in the front-back direction, occupy a small space, have a good sealing effect, and support the heat dissipation of the battery cell 200; it should be noted that the sealing strip may be a plastic strip or a rubber strip.

In some embodiments, the cut-off surface of the sealing strip is rectangular, so that any one of the four surfaces of the sealing strip can be attached to the battery cell 200, and the sealing effect is improved.

In some embodiments, the cut-off surface of the sealing strip is circular, so that the peripheral curved surface of the sealing strip is in line contact with the side wall of the battery cell 200, and the sealing strip is made of rubber, so that the sealing strip can be more tightly attached to the side wall of the battery cell 200.

In some embodiments, the first sealing element 110 and the second sealing element 120 may also be sealing rings, the sealing rings are sleeved on the battery cell 200, and the sealing rings are connected in the left-right direction. It will be appreciated that the cross-section of the sealing ring may be square or circular.

In some embodiments, the plurality of first sealing members 110 are connected side by side in the left-right direction, so that the plurality of first sealing members 110 can integrally move, and the assembly and disassembly are convenient. It should be noted that the plurality of first sealing members 110 may also be integrally formed, and made in a comb shape; the comb shape is the same as the comb, and the comb has a keel and a plurality of comb teeth arranged perpendicular to the keel, so that a plurality of battery cells 200 can be conveniently sealed, and the whole first sealing element 110 can be conveniently assembled and disassembled.

In some embodiments, a support bar 140 is connected between the first and

second seals

110 and 120, and the support bar 140 is used to support the first and

second seals

110 and 120 to stably form the cooling channel 130 while facilitating installation and removal. It is understood that the support rod 140 may be made of plastic or rubber, or may be made of steel, aluminum or ceramic, which can withstand a certain load.

In some embodiments, a side plate 300 is further included, the side plate 300 is connected between the first sealing member 110 and the second sealing member 120, and the side plate 300 is used for guiding the wind direction, making the wind uniform and cooling uniform. It can be understood that the side plate 300 is provided with an air guiding opening, and the size of the air guiding opening is consistent with that of the cooling channel 130.

In some embodiments, the air collecting hood 400 is further included at the front end of the side plate 300, so that the dissipation of cold air is reduced, the cooling is concentrated, and the cooling effect is enhanced. It should be noted that the wind-collecting cover 400 is provided with a flow-guiding line along the front-back direction, and the wind-collecting cover 400 is to reduce the dissipation of wind power.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. The utility model provides a battery module forced air cooling seal structure for sealed electric core (200), its characterized in that includes:

the sealing assembly (100) comprises a first sealing element (110) and a second sealing element (120) connected to the first sealing element (110), wherein the first sealing element (110) or the second sealing element (120) is abutted against the side wall of the battery cell (200), and the first sealing element (110) or the second sealing element (120) is used for sealing a valve portion or a root portion of the battery cell (200).

2. The air-cooled sealing structure of a battery module according to claim 1, characterized in that: the first sealing element (110) and the second sealing element (120) are arranged in a vertical direction correspondingly.

3. The air-cooled sealing structure of a battery module according to claim 2, characterized in that: the number of the first sealing parts (110) is at least two, the second sealing parts (120) correspond to the first sealing parts (110) one by one, and the electric core (200) is inserted between every two adjacent first sealing parts (110).

4. The air-cooled sealing structure of a battery module according to claim 1, characterized in that: a cooling channel (130) is formed between the lower surface of the first sealing member (110) and the upper surface of the second sealing member (120).

5. The air-cooled sealing structure of a battery module according to claim 1, characterized in that: the first sealing element (110) and the second sealing element (120) are sealing strips, and the sealing strips extend in the front-back direction.

6. The air-cooled sealing structure of a battery module according to claim 5, characterized in that: the cut-off surface of the sealing strip is rectangular.

7. The air-cooled sealing structure of a battery module according to claim 1, characterized in that: the first sealing members (110) are connected side by side in the left-right direction.

8. The air-cooled sealing structure of a battery module according to claim 1, characterized in that: a support rod (140) is connected between the first sealing element (110) and the second sealing element (120).

9. The air-cooled sealing structure for a battery module according to any one of claims 1 to 8, wherein: the wind turbine further comprises a side plate (300), wherein the side plate (300) is connected between the first sealing element (110) and the second sealing element (120), and the side plate (300) is used for guiding wind direction.

10. The air-cooled sealing structure of a battery module according to claim 9, characterized in that: the wind collecting cover further comprises a wind collecting cover (400) arranged at the end part of the side plate (300).