CN219642942U - Battery support, battery package and vehicle - Google Patents

Abstract

The embodiment of the utility model provides a battery bracket, a battery pack and a vehicle, wherein the battery bracket comprises a frame body, and an accommodating space is formed in the frame body; the baffle, a plurality of baffles set up side by side in accommodation space to separate accommodation space into accommodation chamber and the heat transfer chamber that sets up in turn, the volume that holds the chamber is greater than the volume in heat transfer chamber, and hold the chamber and be used for accomodating the electric core, the heat transfer chamber is used for carrying out heat transfer with the electric core, has improved the heat exchange efficiency of battery support.

Description

Battery support, battery package and vehicle

Technical Field

The utility model belongs to the technical field of battery support, and particularly relates to a battery support, a battery pack and a vehicle.

Background

The battery module generally comprises a battery shell and a battery cell, wherein a plurality of battery cells are stacked and fixed and then are accommodated in the battery shell, and the battery shell plays a role in accommodating and supporting the stacked battery cells. In the working process of the battery module, the battery core can generate heat, and if the heat cannot be timely dissipated, the stable operation and the service life of the battery module can be influenced.

In the prior art, in order to realize temperature regulation of the battery module, an air cooling channel or a liquid cooling channel is generally arranged between the stacked and fixed battery cells and the battery shell, and the air cooling channel or the liquid cooling channel cannot contact with the side surface of each battery cell, so that the heat dissipation effect of the air cooling channel or the liquid cooling channel is poor.

Disclosure of Invention

It is an object of the present utility model to provide a new solution for a battery holder, a battery pack and a vehicle.

According to a first aspect of the present utility model, there is provided a battery holder comprising:

a frame body, wherein an accommodating space is formed inside the frame body;

the baffle, a plurality of the baffle set up side by side in accommodation space is in order to with accommodation space separates into accommodation chamber and the heat transfer chamber of alternate arrangement, accommodation chamber's volume is greater than the volume of heat transfer chamber, and accommodation chamber is used for accomodating the electric core, the heat transfer chamber is used for carrying out the heat transfer with the electric core.

Optionally, the separator and the frame are integrally extruded.

Optionally, the heat exchange device further comprises a flow dividing plate, wherein the flow dividing plate is arranged in the heat exchange cavity and forms a flow passage with the partition plate;

working medium is arranged in the heat exchange cavity, and the working medium can exchange heat with the battery cell under the condition that the working medium flows in the flow channel.

Optionally, the flow dividing plate is a corrugated plate, the corrugated plate and the partition plate form a plurality of flow channels after being attached, and the flow channels are mutually communicated.

Optionally, a through groove is formed in the flow dividing plate, and adjacent flow channels are communicated through the through groove.

Optionally, the heat exchange device further comprises a cover plate, wherein the cover plate is arranged at the end part of the frame body and is configured to seal the accommodating cavity and the heat exchange cavity.

Optionally, the cover plate is provided with a liquid inlet and a liquid outlet, the plurality of flow channels comprise an inlet flow channel and an outlet flow channel, the liquid inlet is communicated with the inlet flow channel, and the liquid outlet is communicated with the outlet flow channel.

Optionally, the device further comprises an explosion-proof valve, a plurality of explosion-proof valves are arranged at the bottom of the frame body, and each accommodating cavity is communicated with at least one explosion-proof valve.

According to a second aspect of the present utility model, there is provided a battery pack comprising a battery cell and the battery support of the first aspect;

the battery cell is arranged in the accommodating cavity.

According to a third aspect of the present utility model, there is provided a vehicle including the battery pack of the second aspect.

The utility model has the technical effects that:

the embodiment of the utility model provides a battery bracket, which comprises a frame body, wherein an accommodating space is formed in the frame body; the baffle, a plurality of the baffle sets up side by side in accommodation space, with accommodation space separates into accommodation chamber and the heat transfer chamber of alternate arrangement, the volume that holds the chamber is greater than the volume in heat transfer chamber, and it is used for accomodating the electric core to hold the chamber, the heat transfer chamber is used for carrying out the heat transfer with the electric core, has improved the heat exchange efficiency of battery support.

Other features of the present utility model and its advantages will become apparent from the following detailed description of exemplary embodiments of the utility model, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description, serve to explain the principles of the utility model.

Fig. 1 is a perspective view of a battery holder (excluding a cover plate) according to an embodiment of the present utility model;

fig. 2 is an end schematic view of a battery holder (excluding a cover plate) according to an embodiment of the present utility model;

fig. 3 is a schematic bottom view of a battery holder according to an embodiment of the present utility model;

fig. 4 is a perspective view of a battery holder according to an embodiment of the present utility model;

fig. 5 is an end schematic view of a battery holder according to an embodiment of the present utility model;

fig. 6 is a schematic view of the inside of a heat exchange cavity of a battery bracket according to an embodiment of the present utility model;

fig. 7 is a schematic view of a flow dividing plate of a battery bracket according to an embodiment of the present utility model;

fig. 8 is an internal schematic view of a battery holder according to an embodiment of the present utility model;

FIG. 9 is a side view of a diverter plate of a battery holder according to an embodiment of the present utility model;

fig. 10 is a front view of a battery holder according to an embodiment of the present utility model;

fig. 11 is an enlarged view at a in fig. 10.

Wherein: 1. a frame; 2. a partition plate; 3. a diverter plate; 31. a flow passage; 32. a through groove; 4. a cover plate; 41. a liquid inlet; 42. a liquid outlet; 43. a pole; 5. an explosion-proof valve.

Detailed Description

Various exemplary embodiments of the present utility model will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise.

Reference will now be made in detail to embodiments of the present utility model, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The features of the utility model "first", "second" and the like in the description and in the claims may be used for the explicit or implicit inclusion of one or more such features. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

In the description of the present utility model, 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 either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

Referring to fig. 1 and 2, an embodiment of the present utility model provides a battery holder, including:

a frame body 1, wherein an accommodating space is formed inside the frame body 1;

the baffle 2, a plurality of baffle 2 set up side by side in accommodation space is in order to with accommodation space separates into accommodation chamber and the heat transfer chamber of alternate arrangement, accommodation chamber's volume is greater than the volume of heat transfer chamber, and accommodation chamber is used for accomodating the electric core, the heat transfer chamber is used for carrying out the heat transfer with the electric core.

Specifically, under the condition of accommodating the battery cells, the heat exchange cavity is positioned between the adjacent accommodating cavities, namely, a heat exchange space can be provided through the heat exchange cavity between the adjacent battery cells, so that heat exchange is carried out between the heat exchange cavity and the battery cells. And the arrangement of the heat exchange cavity can avoid the independent arrangement of the cold plate in the battery bracket, thereby simplifying the structure of the battery bracket.

Specifically, the frame 1 may have a length dimension, a width dimension and a height dimension, the length dimension of the frame 1 is greater than the width dimension, and the length dimension is also greater than the height dimension, and the plurality of the separators 2 are arranged side by side along the length direction of the frame 1, so that the heat exchange cavity is opposite to the large surface of the battery cell, and the heat exchange efficiency of the battery bracket is improved through heat exchange between the heat exchange cavity and the large surface of the battery cell, so that the problem of thermal runaway of the battery cell caused by untimely heat dissipation can be avoided.

In one embodiment, the length dimension of the frame body 1 may be much greater than the width dimension and the height dimension, so that the accommodating cavity accommodates the blade electric core, and the blade electric core reduces the thickness of the electric core on the original square electric core, and meanwhile, the capacity of the electric core is improved under the condition of increasing the length of the electric core.

In one embodiment, referring to fig. 2, the battery bracket is provided with 6 accommodating cavities and 5 heat exchange cavities, the 6 accommodating cavities with wide openings are used for accommodating the battery cells, and the 5 heat exchange cavities with narrow openings can be filled with cooling air or cooling liquid, or can be filled with cooling air or cooling liquid under the condition of placing the splitter plate, so that the mixed flow of cooling working media in the heat exchange cavities is reduced, and the heat exchange efficiency of the battery bracket is improved.

The battery bracket provided by the embodiment of the utility model comprises a frame body 1, wherein an accommodating space is formed inside the frame body 1; the baffle 2, a plurality of baffle 2 set up side by side in accommodation space is in order to with accommodation space separates into accommodation chamber and the heat transfer chamber of alternate arrangement, accommodation chamber's volume is greater than the volume of heat transfer chamber, and accommodation chamber is used for accomodating the electric core, the heat transfer chamber is used for carrying out heat transfer with the electric core, has improved the heat exchange efficiency of battery support.

Alternatively, referring to fig. 1, the separator 2 and the frame 1 are integrally extrusion-molded.

Specifically, when the separator 2 and the frame 1 are integrally extruded, welding between the separator 2 and the frame 1 can be avoided, and a square housing can be formed without bending the separator 2 and the frame 1. And the integral extrusion molding has higher length limit value compared with the stamping aluminum shell, and can mold the battery bracket with the length far longer than the width and the height.

In one embodiment, the partition board 2 and the frame body 1 are made of aluminum materials, and the cuboid aluminum alloy frame is extruded at one time by using an ingot casting and a die, so that on one hand, the connection strength between the partition board 2 and the frame body 1 can be ensured, and on the other hand, the forming precision of the battery bracket can be improved.

Optionally, referring to fig. 8, the battery bracket further includes a flow dividing plate 3, the flow dividing plate 3 is disposed in the heat exchange cavity, and a flow channel 31 is formed between the flow dividing plate 3 and the separator 2;

the heat exchange cavity is internally provided with a working medium, and the working medium can exchange heat with the battery cell under the condition of flowing in the flow channel 31.

Specifically, when the flow dividing plate 3 is arranged in the heat exchange cavity, the internal space of the heat exchange cavity can be divided into a plurality of flow channels 31 which are communicated in sequence through the flow dividing plate 3, so that mixed flow of the working medium in the heat exchange cavity is avoided; the heat exchange effect of the working medium and the battery cell can be ensured under the condition that the working medium flows in the flow channel 31.

In addition, the flow channel 31 may control the front and rear areas where the working medium flows, for example, the working medium may be controlled to flow through the area opposite to the high temperature position of the battery cell and then flow through the area opposite to the low temperature position of the battery cell, so as to improve the heat exchange efficiency of the battery support to the battery cell and ensure the temperature uniformity of the battery cell.

Alternatively, referring to fig. 8 and 9, the diverter plate 3 is a corrugated plate, and the corrugated plate is attached to the separator 2 to form a plurality of flow channels 31, and the flow channels 31 are mutually communicated.

Specifically, the corrugated plate may include alternately arranged concave sections and convex sections, and after the convex sections of the corrugated plate are attached to the partition plate 2, the flow channels 31 may be formed between the concave sections of the corrugated plate and the partition plate 2, so as to prevent mixed flow between adjacent flow channels 31.

In addition, the end of the flow dividing plate 3 may be covered with a sealing member such as rubber or soft plastic, and the end of the flow dividing plate 3 is tightly attached to the cover plate through the sealing member, so as to ensure the tightness of the flow channel 31.

And the surface of the splitter plate 3 may be coated with an elastic layer such as PP (polypropylene) or PE (polyethylene), so that the splitter plate 3 may be tightly attached to the separator 2 after the protruding section of the corrugated plate is attached to the separator 2.

Alternatively, referring to fig. 6 and 7, the flow dividing plate 3 is provided with a through groove 32, and adjacent flow channels 31 are communicated through the through groove 32.

Specifically, the through groove 32 may extend through the flow dividing plate 3, so as to facilitate communication between adjacent flow passages 31. In the case that the flow dividing plate 3 includes alternately arranged concave sections and convex sections, the through grooves 32 may be formed in the convex sections of the flow dividing plate 3 to communicate with the flow passages 31 formed between the concave sections and the separator 2, so as to ensure smoothness of the flow of the working medium in the heat exchange chamber.

Optionally, referring to fig. 4 and 5, the battery holder further includes a cover plate 4, and the cover plate 4 is disposed at an end of the frame body 1 and configured to close the accommodating chamber and the heat exchanging chamber.

Specifically, the length dimension of the frame 1 may be greater than the width dimension and the height dimension of the frame 1 to form a long-strip-shaped accommodation space inside the frame 1; and a plurality of baffle 2 can be followed the length direction of framework 1 set up side by side in accommodation space is in order to form cuboid form hold chamber and cuboid form heat transfer chamber, is convenient for hold the chamber and to the fixed of blade battery.

On the length direction of the frame body 1, openings are formed at two ends of the frame body 1, the cover plate 4 is arranged on the openings at two ends of the frame body 1, so that the accommodating cavity and the heat exchange cavity are simultaneously sealed through the cover plate 4, and the tightness of the heat exchange cavity is improved on the basis of protecting the battery cells in the accommodating cavity.

Optionally, referring to fig. 5, the cover plate 4 is provided with a liquid inlet 41 and a liquid outlet 42, and a plurality of the flow channels 31 include an inlet flow channel and an outlet flow channel, where the liquid inlet 41 communicates with the inlet flow channel, and the liquid outlet 42 communicates with the outlet flow channel.

Specifically, when the flow channels 31 are communicated through the through grooves 32, the flow channels 31 may include an inlet flow channel at the head end and an outlet flow channel at the tail end, the liquid inlet 41 is communicated with the inlet flow channel, the liquid outlet 42 is communicated with the outlet flow channel, so that the working medium flows into the inlet flow channel through the liquid inlet 41, flows out of the outlet flow channel through the liquid outlet 42 under the condition of passing through the middle flow channel, and the heat exchange efficiency between the working medium and the electric core is improved.

In addition, the battery cell in the accommodating cavity is provided with a pole 43, and the pole 43 can extend out of the cover plate 4 so as to realize the design of the pole at the side face of the battery cell.

Alternatively, referring to fig. 10 and 11, the battery holder further includes explosion-proof valves 5, a plurality of the explosion-proof valves 5 are provided at the bottom of the frame 1, and each of the accommodation chambers communicates with at least one of the explosion-proof valves 5.

Specifically, the bottom of each accommodating cavity can be communicated with one or more explosion-proof valves 5, the battery bracket can facilitate the arrangement of the electrode post 43 of the battery core on the side surface, and the explosion-proof valves 5 are arranged on the bottom of the frame body 1, so that the arrangement of the explosion-proof valves and the electrode posts together on the side surface is avoided; the bottom of the battery support can be provided with a release space, and high-pressure gas in the battery core can be discharged into the release space when the explosion-proof valve is used for spraying the valve, so that secondary short circuit caused by the fact that the high-pressure gas influences the pole 43 is avoided.

Further, referring to fig. 11, the explosion-proof valve 5 includes an explosion-proof valve plate, the explosion-proof valve plate is connected to a slot at the bottom of the frame 1, and the explosion-proof valve plate is combined with the bottom of the frame 1 by using laser or bonding; and be provided with the nick on the explosion-proof valve block, the thickness of nick department is less than the thickness of explosion-proof valve block to guarantee the sealed of electric core under the circumstances that electric core internal pressure is normal, and can open under the circumstances that electric core internal pressure is too big, in order to reach the purpose of pressure release, guarantee the safe handling of electric core.

The embodiment of the utility model also provides a battery pack, which comprises a battery core and the battery bracket;

the battery cell is arranged in the accommodating cavity.

Specifically, in the battery holder of the battery pack, the battery holder includes a frame body 1, and an accommodation space is formed inside the frame body 1; the baffle 2, a plurality of baffle 2 set up side by side in accommodation space is in order to with accommodation space separates into accommodation chamber and the heat transfer chamber that sets up in turn, accommodation chamber's volume is greater than the volume of heat transfer chamber, and accommodation chamber is used for accomodating the electric core, the heat transfer chamber is used for carrying out heat transfer with the electric core, has improved the heat exchange efficiency of battery support has guaranteed the steady operation of battery package.

The embodiment of the utility model also provides a vehicle, which comprises the battery pack.

While certain specific embodiments of the utility model have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the utility model. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the utility model. The scope of the utility model is defined by the appended claims.

Claims (10)

1. A battery holder, comprising:

a frame body (1), wherein an accommodating space is formed inside the frame body (1);

baffle (2), a plurality of baffle (2) set up side by side in accommodation space is in order to with accommodation space separates into accommodation chamber and the heat transfer chamber of alternate set up, accommodation chamber's volume is greater than the volume of heat transfer chamber, and accommodation chamber is used for accomodating the electric core, the heat transfer chamber is used for carrying out heat transfer with the electric core.

2. The battery holder according to claim 1, wherein the separator (2) and the frame body (1) are integrally extrusion-molded.

3. The battery support according to claim 1, further comprising a flow dividing plate (3), wherein the flow dividing plate (3) is arranged in the heat exchange cavity and forms a flow channel (31) with the partition plate (2);

working medium is arranged in the heat exchange cavity, and the working medium can exchange heat with the battery cell under the condition of flowing in the flow channel (31).

4. A battery support according to claim 3, wherein the dividing plate (3) is a corrugated plate, and a plurality of flow channels (31) are formed after the corrugated plate is attached to the separator (2), and the flow channels (31) are mutually communicated.

5. The battery support according to claim 4, characterized in that the flow dividing plate (3) is provided with through grooves (32), and adjacent flow channels (31) are communicated through the through grooves (32).

6. The battery holder according to claim 4, further comprising a cover plate (4), the cover plate (4) being provided at an end of the frame body (1) and configured to close the accommodating chamber and the heat exchanging chamber.

7. The battery support according to claim 6, wherein the cover plate (4) is provided with a liquid inlet (41) and a liquid outlet (42), a plurality of the flow channels (31) comprise an inlet flow channel and an outlet flow channel, the liquid inlet (41) is communicated with the inlet flow channel, and the liquid outlet (42) is communicated with the outlet flow channel.

8. The battery holder according to claim 1, further comprising explosion-proof valves (5), a plurality of the explosion-proof valves (5) being provided at the bottom of the frame body (1), and each of the accommodation chambers being in communication with at least one of the explosion-proof valves (5).

9. A battery pack comprising a battery cell and the battery support of any one of claims 1-8;

the battery cell is arranged in the accommodating cavity.

10. A vehicle comprising the battery pack of claim 9.