CN220544031U - Heat dissipation mechanism and battery module - Google Patents

Abstract

The application discloses a heat dissipation mechanism, which relates to the technical field of energy storage devices; comprises a mounting seat; the air cooling box is arranged on the mounting seat and is provided with a cavity, one end of the air cooling box is provided with a wind power mechanism, and the side wall of the air cooling box is provided with a plurality of groups of ventilation holes at intervals along the length direction of the side wall of the air cooling box; the total opening area of the vent holes of the groups is gradually increased along the direction away from the wind power mechanism; the application also discloses a battery module, which comprises the heat dissipation mechanism; by adopting the technical scheme provided by the application, the heat dissipation uniformity on a plurality of positions can be realized, and the problem that the normal operation of a product is influenced by local overheating due to uneven heat dissipation is avoided.

Description

Heat dissipation mechanism and battery module

Technical Field

The application relates to the technical field of energy storage devices, in particular to a heat dissipation mechanism and a battery module.

Background

The battery module is a typical product under the high-speed development of new energy, and the problem of battery heat dissipation is one of the problems of incapacity of winding in the battery module, if the heat dissipation and cooling work can not be completed in time, heat accumulation in the battery module can lead to various problems of electric performance reduction, capacity attenuation, battery life shortening and the like of the battery core. How to effectively radiate heat of a battery module under the premise of ensuring safety is always a subject of continuous research.

Air cooling heat dissipation is one of the main heat dissipation modes, and has lower cost compared with liquid cooling heat dissipation; but adopting air cooling to dispel the heat also has certain problems, such as radiating homogeneity, the position that is close to the wind gap dispels the heat efficiency higher, and the position that keeps away from the wind gap dispels the heat efficiency lower, so leads to battery module's heat dissipation not even enough, buries down hidden danger for follow-up local heat influence battery life.

Disclosure of Invention

An object of the present application is to provide a heat dissipation mechanism and a battery module, so as to solve at least one technical problem.

In order to solve the above technical problems, the present application provides a heat dissipation mechanism and a battery module, and in a first aspect, the present application provides a heat dissipation mechanism, including a mounting seat;

the air cooling box is arranged on the mounting seat and is provided with a cavity, one end of the air cooling box is provided with a wind power mechanism, and the side wall of the air cooling box is provided with a plurality of groups of ventilation holes at intervals along the length direction of the side wall of the air cooling box;

the total opening area of the vent holes of the groups is gradually increased along the direction away from the wind power mechanism;

in the implementation process, the mounting seat is provided with the air cooling box, and it is understood that the main body to be cooled can be arranged on the mounting seat as well, the wind power mechanism can exhaust air or draft air towards the interior of the air cooling box, and by taking draft air as an example, the wind power mechanism draft air forms negative pressure in the cavity of the air cooling box, so that external air flow enters the air cooling box through the vent hole, thereby promoting the flow of the air flow, and the main body to be cooled is arranged on the mounting seat, thereby carrying heat away in the air flow process, and realizing the improvement of the heat dissipation efficiency; in this scheme, its opening total area of a plurality of group ventilation holes along the direction of keeping away from wind power mechanism increases gradually, so can effectively slow down the air inflow volume of keeping away from wind power mechanism one side and the air inflow volume difference that is close to wind power mechanism one side too big to the heat dissipation homogeneity on the realization multiple positions avoids the inhomogeneous heat dissipation to lead to local overheated normal operating that influences the product.

Preferably, the air conditioner further comprises a heat dissipation piece, wherein the heat dissipation piece is provided with a plurality of groups and is arranged in one-to-one correspondence with the ventilation holes; the plurality of radiating pieces are distributed at intervals along the length direction of the air cooling box;

the main body to be radiated is suitable for being arranged between two adjacent radiating pieces;

in the implementation process, the main body to be cooled is arranged between the two cooling pieces, heat of the main body to be cooled can be conducted to the cooling pieces, the cooling pieces and the ventilation holes are arranged in one-to-one correspondence, namely when the wind power mechanism is started to cause airflow to flow, the flowing airflow can take away the heat on the cooling pieces, cooling of the cooling pieces is achieved, and cooling of the main body to be cooled is finally achieved through circulation.

Preferably, each group of the ventilation holes comprises a plurality of single holes which are arranged along the vertical direction;

in the above implementation, it is understood that a plurality of single holes arranged at intervals form a set of ventilation holes.

Preferably, each group of the ventilation holes comprises a single hole, and the total opening area of a plurality of single holes is gradually increased along the direction away from the wind power mechanism;

in some embodiments, each set of ventilation holes may be understood as having only one hole and increasing in opening area in a direction away from the wind mechanism, further understood as increasing in height in the vertical direction.

Preferably, the heat dissipation member includes a heat dissipation plate through which a through hole is formed along a length direction thereof;

in the implementation process, when the wind power mechanism is started, the wind power mechanism drives the airflow to flow by taking the air draft as an example, and the radiating plates and the radiating holes are arranged in one-to-one correspondence, namely, through holes on the radiating plates can correspond to the radiating holes, so that the airflow is caused to flow from the through holes on the radiating plates to the radiating holes to enter the cavity of the air cooling box, the airflow can take away the heat on the radiating plates when passing through the radiating holes, so that the cooling of the radiating plates is realized, and the main radiating bodies with the radiating plates positioned on two sides of the radiating plates can further conduct the heat to the radiating plates, so that the cooling of the main radiating bodies to be treated is realized in a circulating manner.

Preferably, the heat dissipation piece is an aluminum profile;

in the implementation process, the aluminum profile is selected as the heat dissipation part, so that the compression cost can be effectively reduced under the condition of ensuring enough heat dissipation performance.

Preferably, the wind power mechanism is an exhaust fan;

preferably, the air cooling box comprises a main body part and a connecting part, the ventilation hole is formed in the main body part, the connecting part is arranged at one end, close to the wind power mechanism, of the main body part, and the wind power mechanism is arranged at an air outlet port of the connecting part;

the opening size of the connecting part close to the wind power mechanism is larger than that of the connecting part close to the main body part;

in the implementation process, the structure of the air cooling box is further improved, so that one end close to the wind power mechanism is in an open shape, the settable area of the wind power mechanism can be increased, and a larger air draft mechanism is further arranged, so that the air draft efficiency is improved; the main body part and the air draft mechanism have certain difference in cross-sectional area, the connection is realized by the connection part, and the main body part is relatively thin and can reserve more space for placing the main body to be cooled.

Preferably, a plurality of groups of vent holes are respectively distributed on the two opposite side walls of the air cooling box at intervals along the length direction of the air cooling box;

in the implementation process, the two opposite side walls of the air cooling box are provided with the ventilation holes, so that the main body to be cooled can be placed on two sides of the air cooling box, and the coverage range of the air cooling box, which can realize cooling, is improved.

In a second aspect, the present application further provides a battery module, including any of the heat dissipation mechanisms described above; the main body to be radiated is a battery main body;

the battery body and the heat dissipation piece form an energy storage unit;

the energy storage units are provided with two groups and are respectively distributed on two sides of the air cooling box.

Compared with the prior art, the beneficial effect of this application lies in: the total area of the openings of the plurality of groups of vent holes in the scheme is gradually increased along the direction away from the wind power mechanism, so that the air inflow quantity on one side away from the wind power mechanism and the air inflow quantity on one side close to the wind power mechanism can be effectively slowed down, the heat dissipation uniformity on a plurality of positions is realized, and the influence of local overheating caused by uneven heat dissipation on the normal operation of products is avoided.

Drawings

In order to more clearly illustrate the embodiments of the present application 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 below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic diagram of an overall structure of a heat dissipation mechanism according to an embodiment of the present disclosure;

fig. 2 is a schematic structural view of a battery module according to an embodiment of the present application;

FIG. 3 is an enlarged schematic view of the portion A of FIG. 2;

fig. 4 is a partial schematic structure of a battery module according to an embodiment of the present application;

fig. 5 is a partial schematic structure of a battery module according to an embodiment of the present application;

wherein: 10. a mounting base; 20. an air cooling box; 21. a main body portion; 211. a vent hole; 22. a joint portion; 30. an energy storage unit; 31. a battery main body; 32. a heat sink; 321. a through hole; 33. a fixing ring; 40. a wind power mechanism.

Detailed Description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or an implicit indication of the number of technical features being indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, 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 connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In the description of the present application, it should be understood that the terms "upper," "lower," "side," "front," "rear," and the like indicate an orientation or positional relationship based on installation, and are merely for convenience of description of the present application and to simplify the description, rather than to indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.

In the description of the present application, it should be noted that the term "and/or" is merely an association relationship describing an association object, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone.

It should be further noted that, in the embodiments of the present application, the same reference numerals denote the same components or the same parts, and for the same parts in the embodiments of the present application, reference numerals may be given to only one of the parts or the parts in the drawings by way of example, and it should be understood that, for other same parts or parts, the reference numerals are equally applicable.

For a further understanding of the utility model, features and efficacy of this application, the following examples are set forth to illustrate, together with the drawings, the detailed description of which follows:

examples

Air cooling heat dissipation is one of the main heat dissipation modes, and has lower cost compared with liquid cooling heat dissipation; however, the adoption of air cooling for heat dissipation also has certain problems, such as uniformity of heat dissipation, higher heat dissipation efficiency at the position close to the air port and lower heat dissipation efficiency at the position far away from the air port, so that the heat dissipation of the battery module is not uniform enough, and hidden danger is buried for influencing the service life of the battery due to subsequent local heating; in order to solve the above technical problems, the present embodiment provides the following technical solutions:

referring to fig. 1-5, the present embodiment provides a heat dissipation mechanism, which includes a mounting base 10 and an air cooling box 20;

specifically, the air cooling box 20 is arranged on the mounting seat 10 and is formed with a cavity, one end of the air cooling box 20 is provided with a wind power mechanism 40, and a plurality of groups of ventilation holes 211 are distributed on the side wall of the air cooling box 20 along the length direction thereof at intervals;

further, the total area of the openings of the plurality of groups of vent holes 211 is gradually increased along the direction away from the wind power mechanism 40;

in the above-mentioned scheme, the air cooling box 20 is arranged on the mounting seat 10, it is understood that the main body to be cooled can be arranged on the mounting seat 10 as well, the wind power mechanism 40 outputs wind or extracts wind towards the interior of the air cooling box 20, and taking extraction as an example, the wind power mechanism 40 extracts wind to form a negative pressure in the cavity of the air cooling box 20, so that external air flow enters the air cooling box 20 through the ventilation holes 211, thereby promoting the flow of the air flow, and the main body to be cooled is arranged on the mounting seat 10, thereby carrying heat away in the air flow flowing process, and realizing the improvement of the heat dissipation efficiency; in this scheme, the total area of the openings of the plurality of groups of vent holes 211 is gradually increased along the direction away from the wind power mechanism 40, so that the difference between the inflow of the air flow away from the wind power mechanism 40 and the inflow of the air flow close to the wind power mechanism 40 can be effectively slowed down, the uniformity of heat dissipation in a plurality of positions can be realized, and the influence of local overheating caused by the uneven heat dissipation on the normal operation of the product can be avoided.

Specifically, referring to fig. 2-3, the heat dissipation device further includes a heat dissipation element 32, where the heat dissipation element 32 is provided with a plurality of groups and is disposed in one-to-one correspondence with the ventilation holes 211; the plurality of heat dissipation elements 32 are arranged at intervals along the length direction of the air cooling box 20;

further, the body to be heat-dissipated is adapted to be placed between two adjacent heat dissipating members 32;

in the above-mentioned scheme, the main body to be cooled is disposed between two cooling elements 32, the heat of the main body to be cooled can be conducted to the cooling elements 32, and the cooling elements 32 and the ventilation holes 211 are arranged in one-to-one correspondence, i.e. when the wind power mechanism 40 is opened to cause airflow to flow, the flowing airflow can take away the heat on the cooling elements 32, so as to realize cooling of the cooling elements 32, and thus the cooling of the main body to be cooled is finally realized.

Specifically, in one embodiment, each set of ventilation holes 211 includes a plurality of single holes arranged in a vertical direction;

in the above, it is understood that a plurality of single holes arranged at intervals form a set of ventilation holes 211.

Specifically, in another embodiment, each set of ventilation holes 211 comprises a single hole, and the total area of the openings of the single holes increases gradually in the direction away from wind mechanism 40;

in the above-described solution, each set of ventilation holes 211 may be understood as having only one hole and its opening area increases in a direction away from the wind mechanism 40, and further may be understood as a gradual increase in height in the vertical direction.

Specifically, the heat dissipation member 32 includes a heat dissipation plate through which a through hole 321 is formed along a length direction thereof;

in the above scheme, when the wind power mechanism 40 is turned on, taking the air draft as an example, the wind power mechanism 40 drives the air flow to flow, and the heat dissipation plates are arranged in one-to-one correspondence with the heat dissipation holes, that is, the through holes 321 on the heat dissipation plates can correspond to the heat dissipation holes, so that the air flow is caused to flow from the through holes 321 on the heat dissipation plates to the heat dissipation holes to enter the cavity of the air cooling box 20, the air flow can take away the heat on the heat dissipation plates when passing through the heat dissipation holes, so as to realize the cooling of the heat dissipation plates, and the heat dissipation bodies with heat dissipation plates positioned on two sides of the heat dissipation plates can further conduct the heat to the heat dissipation plates, so that the cooling of the heat dissipation bodies is realized.

Specifically, in one embodiment, the heat dissipation element 32 is an aluminum profile;

in the above scheme, the aluminum profile is selected as the heat dissipation part 32, so that the compression cost can be effectively reduced under the condition of ensuring enough heat dissipation performance.

Specifically, wind mechanism 40 is an exhaust fan;

specifically, referring to fig. 1, in the air cooling box 20 including a main body 21 and a connection portion 22, a ventilation hole 211 is formed in the main body 21, the connection portion 22 is disposed at one end of the main body 21 near the wind power mechanism 40, and the wind power mechanism 40 is disposed at an air outlet of the connection portion 22;

further, the opening size of the engagement portion 22 near the wind power mechanism 40 is larger than the opening size near the main body portion 21;

in the above scheme, the structure of the air cooling box 20 is further improved, so that one end close to the wind power mechanism 40 is open, the settable area of the wind power mechanism 40 can be increased, and a larger air draft mechanism is further arranged, so that the air draft efficiency is improved; the main body 21 and the air draft mechanism have a certain difference in cross-sectional area, the engagement is realized by the engagement portion 22, and the relatively thin main body 21 can reserve more space for the main body to be placed.

Specifically, a plurality of groups of ventilation holes 211 are respectively and alternately distributed on two opposite side walls of the air cooling box 20 along the length direction thereof;

in the above scheme, the two opposite side walls of the air cooling box 20 are provided with the ventilation holes 211, so that the main body to be cooled can be placed on two sides of the air cooling box 20, and the coverage range of the air cooling box 20 for cooling is improved.

The embodiment also provides a battery module, which comprises the heat dissipation mechanism;

in one embodiment, the body to be heat-dissipated may be understood as the battery body 31;

further, the battery body 31 and the heat sink 32 constitute an energy storage unit 30;

further, the energy storage units 30 are provided with two groups, and are respectively distributed on two sides of the air cooling box 20.

Further, in one embodiment, the mounting plate is L-shaped and the wind mechanism 40 is disposed on one of its L-shaped folds, which is further understood to be on the vertical fold.

Further, a fixing ring 33 is arranged around the outer periphery of each energy storage unit 30, and at least one fixing ring 33 is arranged; this scheme can make realizing better butt between radiating member 32 and the battery main part 31 through further setting up solid fixed ring 33, promotes heat conduction efficiency, promotes overall structure's connection stability simultaneously.

It should be noted that, without conflict, the embodiments and features of the embodiments in the present application may be combined with each other.

The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the present application in any way, and any simple modification, equivalent variations and modification made to the above embodiments according to the technical principles of the present application are within the scope of the technical solutions of the present application.

Claims (10)

1. A heat dissipation mechanism, characterized in that: comprises a mounting seat;

the air cooling box is arranged on the mounting seat and is provided with a cavity, one end of the air cooling box is provided with a wind power mechanism, and the side wall of the air cooling box is provided with a plurality of groups of ventilation holes at intervals along the length direction of the side wall of the air cooling box;

the total area of the openings of the vent holes of the groups is gradually increased along the direction away from the wind power mechanism.

2. The heat dissipation mechanism as recited in claim 1, wherein: the heat dissipation part is provided with a plurality of groups and is arranged in one-to-one correspondence with the vent holes; the plurality of radiating pieces are distributed at intervals along the length direction of the air cooling box;

the main body to be heat-dissipated is suitable for being placed between two adjacent heat dissipation pieces.

3. The heat dissipation mechanism as recited in claim 2, wherein: each group of ventilation holes comprises a plurality of single holes which are distributed along the vertical direction.

4. The heat dissipation mechanism as recited in claim 2, wherein: each group of ventilation holes comprises a single hole, and the total opening area of a plurality of single holes is gradually increased along the direction away from the wind power mechanism.

5. The heat dissipation mechanism according to claim 3 or 4, wherein: the heat dissipation piece comprises a heat dissipation plate, and the heat dissipation plate is provided with a through hole in a penetrating mode along the length direction of the heat dissipation plate.

6. The heat dissipation mechanism as recited in claim 5, wherein: the heat dissipation piece is an aluminum profile.

7. The heat dissipation mechanism as recited in claim 1, wherein: the wind power mechanism is an exhaust fan.

8. The heat dissipation mechanism as recited in claim 7, wherein: the air cooling box comprises a main body part and a connecting part, the ventilation hole is formed in the main body part, the connecting part is arranged at one end, close to the wind power mechanism, of the main body part, and the wind power mechanism is arranged at an air outlet port of the connecting part;

the opening size of the connecting part close to the wind power mechanism is larger than that of the connecting part close to the main body part.

9. The heat dissipation mechanism as recited in claim 5, wherein: and a plurality of groups of vent holes are respectively distributed on the two opposite side walls of the air cooling box at intervals along the length direction of the air cooling box.

10. A battery module, characterized in that: comprising a heat dissipation mechanism as recited in claim 9; the main body to be radiated is a battery main body;

the battery body and the heat dissipation piece form an energy storage unit;

the energy storage units are provided with two groups and are respectively distributed on two sides of the air cooling box.