CN220692213U - Battery device - Google Patents

Abstract

The utility model relates to the technical field of batteries, in particular to a battery device, which comprises a battery box and a battery array, wherein the battery array is accommodated in the battery box, the battery array comprises a plurality of batteries which are arranged along a first horizontal direction, a pole post of each battery is positioned on the top surface of each battery, the battery box comprises a frame and a beam, the frame is provided with an explosion-proof valve, the extending direction of the beam is the same as that of the frame, the beam is arranged on the inner side wall of the frame facing the battery and is provided with an inner cavity, an exhaust channel is formed in the inner cavity, one end of the exhaust channel is opened on the outer side wall of the beam facing the frame to form an exhaust port, the exhaust port is communicated with the explosion-proof valve, the other end of the exhaust channel is opened on the top wall of the beam to form an air inlet, and the air inlet is communicated with a battery space; wherein, along first horizontal direction, the position of air inlet corresponds the position of a plurality of posts of at least one battery row.

Description

Battery device

Technical Field

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

Background

In the design scheme of the existing battery device, an explosion-proof valve is arranged on the frame of the battery box, an exhaust channel communicated with the explosion-proof valve is arranged on the beam positioned on the inner side of the frame, and gas in the battery device can circulate to the explosion-proof valve through the exhaust channel. However, in the prior art, the pole is used as a region with relatively maximum heat generation amount of the battery, and the moving distance of the air flow between the pole and the exhaust channel is long, so that the heat dissipation performance of the battery is affected.

Disclosure of Invention

It is therefore a primary object of the present utility model to overcome at least one of the above-mentioned drawbacks of the prior art and to provide a battery device with improved heat dissipation.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

according to one aspect of the present utility model, there is provided a battery device, comprising a battery box and a battery array, wherein the battery array is accommodated in the battery box, the battery array comprises a plurality of batteries arranged along a first horizontal direction, poles of the batteries are positioned on the top surface of the batteries, the battery box comprises a frame and a beam, the frame is provided with an explosion-proof valve, the beam is arranged in the same extending direction as the frame, the beam is arranged on the inner side wall of the frame facing the batteries and is provided with an inner cavity, an exhaust channel is formed in the inner cavity, one end of the exhaust channel is opened on the outer side wall of the frame facing the frame to form an exhaust port, the exhaust port is communicated with the explosion-proof valve, the other end of the exhaust channel is opened on the top wall of the beam to form an air inlet, and the air inlet is communicated with a battery space; wherein, along the first horizontal direction, the position of the air inlet corresponds to the position of a plurality of the poles of at least one battery column.

As can be seen from the above technical solutions, the battery device provided by the present utility model has the following advantages and positive effects:

the battery device comprises a battery box and a battery array, wherein the battery array comprises a plurality of batteries which are arranged along a first horizontal direction, the poles of the batteries are positioned on the top surface of the battery array, the battery box comprises a frame and a beam, the frame is provided with an explosion-proof valve, the beam and the frame are in the same extending direction, an exhaust channel is formed in an inner cavity of the beam, one end of the exhaust channel is opened on the top wall of the beam to form an air inlet, and the other end of the exhaust channel is an air outlet and is communicated with the explosion-proof valve. The position of the air inlet corresponds to the position of the plurality of poles of at least one battery column along the first horizontal direction. Through the structural design, the position of the air inlet of the exhaust channel is arranged corresponding to the plurality of poles of at least one battery row, so that the air flow moving distance between the poles and the exhaust channel is shortened, and the heat dissipation performance of the battery device can be improved.

Drawings

Various objects, features and advantages of the present utility model will become more apparent from the following detailed description of the preferred embodiments of the utility model, when taken in conjunction with the accompanying drawings. The drawings are merely exemplary illustrations of the utility model and are not necessarily drawn to scale. In the drawings, like reference numerals refer to the same or similar parts throughout. Wherein:

fig. 1 is a schematic perspective view of a battery device according to an exemplary embodiment;

FIG. 2 is an enlarged schematic view of portion A of FIG. 1;

fig. 3 is a schematic plan view of the battery box shown in fig. 1;

FIG. 4 is a partial cross-sectional view taken along line B-B in FIG. 3;

FIG. 5 is a schematic perspective view of FIG. 4;

fig. 6 is a partial perspective sectional view of a battery case of a battery device according to another exemplary embodiment.

The reference numerals are explained as follows:

100. a frame;

101. a wall surface;

200. a beam;

201. a first step wall;

202. a second step wall;

203. a vertical wall;

2101. a first channel;

2102. a second channel;

211. an exhaust port;

212. an air inlet;

2121. a first region;

2122. a second region;

220. a first rib plate;

221. a first through hole;

230. a second rib plate;

231. a second through hole;

240. a third rib plate;

300. an explosion-proof valve;

310. an air inlet end portion;

400. a battery;

410. a pole;

x, a first horizontal direction;

y. a second horizontal direction.

Detailed Description

Exemplary embodiments that embody features and advantages of the present utility model are described in detail in the following description. It will be understood that the utility model is capable of various modifications in various embodiments, all without departing from the scope of the utility model, and that the description and drawings are intended to be illustrative in nature and not to be limiting.

In the following description of various exemplary embodiments of the utility model, reference is made to the accompanying drawings, which form a part hereof, and in which are shown by way of illustration various exemplary structures, systems, and steps in which aspects of the utility model may be practiced. It is to be understood that other specific arrangements of parts, structures, example devices, systems, and steps may be utilized and structural and functional modifications may be made without departing from the scope of the present utility model. Moreover, although the terms "over," "between," "within," and the like may be used in this description to describe various exemplary features and elements of the utility model, these terms are used herein for convenience only, e.g., in terms of the orientation of the examples depicted in the drawings. Nothing in this specification should be construed as requiring a particular three-dimensional orientation of the structure in order to fall within the scope of the utility model.

Referring to fig. 1, a schematic perspective view of a battery case of a battery device according to the present utility model is representatively illustrated. In this exemplary embodiment, a battery device according to the present utility model will be described by taking an in-vehicle battery as an example. Those skilled in the art will readily appreciate that many modifications, additions, substitutions, deletions, or other changes may be made to the specific embodiments described below in order to adapt the relevant designs of the present utility model to other types of battery devices, and such changes are still within the principles of the battery devices presented herein.

As shown in fig. 1, in an embodiment of the present utility model, the battery device includes a battery box and a battery column, the battery column is accommodated in the battery box, the battery column includes a plurality of batteries 400 arranged along a first horizontal direction X, and a post 410 of the battery 400 is located on a top surface of the battery 400. Referring to fig. 2-5 in conjunction, an enlarged schematic view of portion a of fig. 1 is representatively illustrated in fig. 2;

a schematic plan view of the battery box is representatively illustrated in fig. 3; a partial cross-sectional view taken along line B-B in fig. 3 is representatively illustrated in fig. 4; fig. 5 representatively illustrates a schematic perspective view of fig. 4. The structure, connection manner and functional relationship of the main components of the battery device according to the present utility model will be described in detail below with reference to the above-mentioned drawings.

As shown in fig. 1 to 5, in an embodiment of the present utility model, a battery case includes a frame 100 and a beam 200, the frame 100 is provided with an explosion-proof valve 300, the beam 200 extends in the same direction as the frame 100, the beam 200 is disposed on an inner sidewall of the frame 100 facing the battery, and the beam 200 has an inner cavity. An exhaust passage (i.e., a first passage 2101 shown in the drawings) is formed in the inner cavity of the beam 200, one end of the exhaust passage is opened to the outer side wall of the beam 200 facing the frame 100 to form an exhaust port 211, the exhaust port 211 is communicated with the explosion-proof valve 300, the other end of the exhaust passage is opened to the top wall of the beam 200 to form an air inlet 212, and the air inlet 212 is communicated with a battery space (i.e., a space in which a battery row and other electrical components are accommodated in the battery box). On the basis of this, the position of the air inlet 212 of the exhaust passage corresponds to the position of the plurality of poles 410 of at least one battery row in the first horizontal direction X. Through the above structural design, the positions of the air inlets 212 of the air exhaust channels are arranged corresponding to the plurality of poles 410 of at least one battery row, so that the air flow moving distance between the poles 410 and the air exhaust channels is shortened, and the heat dissipation performance of the battery device can be improved.

As shown in fig. 1 and 2, in an embodiment of the present utility model, the battery device includes at least two battery columns (for example, but not limited to, nine battery columns shown in the drawings), and the battery columns are arranged along a second horizontal direction Y, which is perpendicular to the first horizontal direction X. On this basis, the position of at least one air inlet 212 corresponds to the positions of the plurality of poles 410 of two adjacent battery rows at the same time. Through the above structural design, the present utility model can utilize one air inlet 212 to correspond to two adjacent columns of poles 410 of two adjacent battery columns, thereby further improving the heat dissipation performance of the battery device and being beneficial to simplifying the structure.

As shown in fig. 2, in an embodiment of the present utility model, the top wall of the girder 200 is stepped, and the top wall of the girder 200 has a first stepped wall 201 and a second stepped wall 202 with different heights, and the air inlet 212 of the exhaust passage includes a first region 2121 and a second region 2122 that are communicated, and the first region 2121 and the second region 2122 are respectively opened to the first stepped wall 201 and the second stepped wall 202 of the girder 200. Through the structural design, the two communicated areas of the air inlets 212 of the exhaust channels are formed in the two step walls of the top wall of the beam 200, so that the opening area of the air inlets 212 is enlarged, solid fragments entrained in the pressure release air flow are not easy to cause blockage of the exhaust channels, and the explosion-proof function of the battery box is ensured.

As shown in fig. 2, in an embodiment of the present utility model, the first step wall 201 of the beam 200 is lower than the second step wall 202, and the first step wall 201 is closer to the rim 100 than the second step wall 202. With the above structural design, since the height of the battery may be higher than the height of the frame 100, the present utility model can make a portion of the top wall of the beam 200 close to the battery higher than a portion of the top wall close to the frame 100, thereby facilitating the limitation of the battery with the beam 200 (such as the limitation of the end plate of the battery pack).

As shown in fig. 4 and 5, in an embodiment of the present utility model, a first rib 220 may be provided in the inner cavity of the girder 200, and the first rib 220 partitions the inner cavity along a first horizontal direction X, which is perpendicular to the extension direction of the girder 200. On this basis, the first rib 220 may be provided with a first through hole 221, whereby two portions of the exhaust passage connected to the first region 2121 and the second region 2122 of the intake port 212 communicate via the first through hole 221. Through the structural design, the structural strength of the beam 200 can be enhanced by utilizing the first rib plates 220, and meanwhile, an exhaust channel is formed by utilizing the first through holes 221, so that the explosion-proof function of the battery box is ensured.

As shown in fig. 4 and 5, based on the structural design that the first rib 220 is disposed in the inner cavity of the girder 200, in an embodiment of the present utility model, the top wall of the girder 200 further has a vertical wall 203, and the vertical wall 203 is connected between the first step wall 201 and the second step wall 202. On this basis, the top of the first rib plate 220 may be connected to the bottom of the vertical wall 203, and a first notch is opened at the top of the first rib plate 220 corresponding to the position of the air inlet 212, and a second notch is opened at the position of the vertical wall 203 corresponding to the air inlet 212, where the first notch and the second notch are communicated to form the first through hole 221 together. By the above structural design, the present utility model can further strengthen the structural strength of the girder 200 by using the connection design of the vertical wall 203 and the first rib plate 220 on the basis of not blocking the exhaust passage.

As shown in fig. 4 and 5, based on the structural design that the first rib 220 is disposed in the inner cavity of the girder 200, in an embodiment of the present utility model, a second rib 230 may be further disposed in the inner cavity of the girder 200, the second rib 230 is parallel to the bottom wall of the girder 200, and the second rib 230 partitions the inner cavity of the girder 200 in the height direction (i.e., the vertical direction in the drawing), and the second rib 230 is connected between the first rib 220 and the outer side wall of the girder 200 facing the frame 100. On this basis, the at least one second rib 230 is disposed at a height higher than the exhaust port 211, and the second rib 230 disposed at a height higher than the exhaust port 211 may be provided with a second through hole 231, and the second through hole 231 participates in forming the exhaust passage. Through the above structural design, the present utility model can further strengthen the structural strength of the girder 200 by using the second rib plate 230 on the basis of not blocking the exhaust passage.

As shown in fig. 4 and 5, based on the structural design that the first rib plate 220 and the second rib plate 230 are disposed in the inner cavity of the beam 200, in an embodiment of the present utility model, a third rib plate 240 may be further disposed in the inner cavity, the third rib plate 240 is parallel to the bottom wall of the beam 200, and the second rib plate 230 separates the inner cavity of the beam 200 in the height direction (i.e., the vertical direction in the drawing), and the third rib plate 240 is connected between the first rib plate 220 and the inner side wall of the beam 200 facing the battery. On this basis, the first through hole 221 formed in the first rib 220 may be located above the uppermost third rib 240. Through the structural design, the structural strength of the beam 200 can be further enhanced by utilizing the third rib plate 240, and meanwhile, the third rib plate 240 is prevented from being further provided with through holes for avoiding an exhaust passage.

As shown in fig. 1 and 5, in an embodiment of the present utility model, at least two exhaust passages may be formed in the inner cavity of the beam 200, and the exhaust passages may specifically include at least one first passage 2101 and at least one second passage 2102, the at least one first passage 2101 being arranged in one-to-one correspondence with the at least one explosion-proof valve 300, the second passage 2102 being arranged offset from the explosion-proof valve 300 along a second horizontal direction Y, which is an extending direction of the beam 200, the second passage 2102 being communicated with the first passage 2101 and sharing an exhaust port 211 of the first passage 2101. Through the above structural design, the utility model can realize the air flow discharge of a plurality of positions in the battery box by utilizing a plurality of exhaust channels comprising the first channel 2101 and the second channel 2102, and the explosion-proof valve 300 is not required to be arranged on the frame 100 for each exhaust channel, so that the utility model is beneficial to reducing the number of parts and the cost on the basis of ensuring the explosion-proof function of the battery box.

As shown in fig. 2, 4 and 5, in an embodiment of the present utility model, the frame 100 and the beam 200 may be integrally formed, and the inner side wall of the frame 100 and the outer side wall of the frame 100 share a wall surface 101, and the exhaust port 211 formed by opening the exhaust passage on the outer side wall of the beam 200 may be opened on the wall surface 101. Through the structural design, the utility model can reduce the number of parts and simplify the assembly process of the battery box. Meanwhile, compared with the scheme that the frame 100 and the beam 200 are in split design and are connected together, the structural design that the frame 100 and the beam 200 form an integrated structure can further strengthen the structural strength of the battery box.

As shown in fig. 4 and 5, based on the structural design of the frame 100 and the beam 200 as a unitary structure, in one embodiment of the present utility model, the explosion-proof valve 300 has an air inlet end 310 extending toward the beam 200, and the air inlet end 310 can pass through the air outlet 211 on the wall 101 and into the air outlet channel (e.g., the first channel 2101 shown in the drawings) of the beam 200. Through the structural design, the explosion-proof function of the battery box can be further ensured.

As shown in fig. 4 and 5, based on the structural design of the integral structure of the frame 100 and the beam 200, in an embodiment of the present utility model, the first step wall 201 of the beam 200 may be lower than the second step wall 202 thereof, and the first step wall 201 is closer to the frame 100 than the second step wall 202. On this basis, the top wall of the rim 100 may be flush with the first step wall 201 of the beam 200. Through the above structural design, the structural integrity of the battery box can be further optimized, the height difference between the top wall of the frame 100 and the first step wall 201 of the beam 200 connected with the top wall is avoided, and the area of the top wall of the frame 100 (the first step wall 201 is equivalent to the range of the top wall of the frame 100) can be increased because the box cover (not shown in the drawing) of the battery device is connected to the top wall of the frame 100, thereby facilitating the installation of the box cover and improving the assembly effect of the box cover and the battery box.

Referring to fig. 6, a partial perspective cross-sectional view of a battery compartment of a battery capable of embodying the principles of the present utility model in another exemplary embodiment is representatively illustrated in fig. 6, with particular reference to fig. 5 in a cut-away view from fig. 3.

In contrast to the embodiment shown in fig. 1 to 5, which adopts a structural design in which the frame 100 and the beam 200 are integrally formed, as shown in fig. 6, in an embodiment of the present utility model, the frame 100 and the beam 200 may be two separate members. On this basis, the inner side wall of the frame 100 facing the battery and the outer side wall of the beam 200 facing away from the battery are oppositely arranged, the outer side wall of the beam 200 is provided with the exhaust port 211, the inner side wall of the frame 100 is provided with a through hole corresponding to the exhaust port 211, and accordingly the communication between the exhaust port 211 and the explosion-proof valve 300 is realized. In addition, the frame 100 and the beam 200 may be connected by welding or connecting members, or the frame 100 and the beam 200 may be connected to other structures (such as but not limited to a bottom plate) of the box without direct connection, which is not limited to the present embodiment.

It should be noted herein that the battery devices shown in the drawings and described in this specification are only a few examples of the wide variety of battery devices that can employ the principles of the present utility model. It should be clearly understood that the principles of the present utility model are in no way limited to any of the details of the battery device or any of the components of the battery device shown in the drawings or described in the present specification.

In summary, the battery device provided by the present utility model includes a battery box and a battery array, the battery array includes a plurality of batteries 400 arranged along a first horizontal direction X, a post 410 of each battery 400 is located on a top surface of the battery box, the battery box includes a frame 100 and a beam 200, the frame 100 is provided with an explosion-proof valve 300, the beam 200 and the frame 100 extend in the same direction, an inner cavity of the beam 200 is formed with an exhaust channel, one end of the exhaust channel is opened on a top wall of the beam 200 to form an air inlet 211, and the other end is an air outlet 212 and is communicated with the explosion-proof valve 300. The position of the air inlet 211 corresponds to the position of the plurality of poles 410 of at least one battery row in the first horizontal direction X. Through the above structural design, the present utility model arranges the position of the air inlet 211 of the air exhaust channel corresponding to the plurality of poles 410 of at least one battery row, shortens the air flow moving distance between the poles 410 and the air exhaust channel, and can improve the heat dissipation performance of the battery device.

Exemplary embodiments of the battery device proposed by the present utility model are described and/or illustrated in detail above. Embodiments of the utility model are not limited to the specific embodiments described herein, but rather, components and/or steps of each embodiment may be utilized independently and separately from other components and/or steps described herein. Each component and/or each step of one embodiment may also be used in combination with other components and/or steps of other embodiments. When introducing elements/components/etc. that are described and/or illustrated herein, the terms "a," "an," and "the" are intended to mean that there are one or more of the elements/components/etc. The terms "comprising," "including," and "having" are intended to be inclusive and mean that there may be additional elements/components/etc., in addition to the listed elements/components/etc. Furthermore, the terms "first" and "second" and the like in the claims and in the description are used for descriptive purposes only and not for numerical limitation of their subject matter.

While the utility model has been described in terms of various specific embodiments, those skilled in the art will recognize that the utility model can be practiced with modification within the spirit and scope of the claims.

Claims (10)

1. The battery device is characterized by comprising a battery box and a battery array, wherein the battery array is accommodated in the battery box, the battery array comprises a plurality of batteries which are arranged along a first horizontal direction, poles of the batteries are positioned on the top surface of the batteries, the battery box comprises a frame and a beam, the frame is provided with an explosion-proof valve, the extending direction of the beam is the same as that of the frame, the beam is arranged on the inner side wall of the frame, which faces the batteries, and is provided with an inner cavity, an exhaust channel is formed in the inner cavity, one end of the exhaust channel is opened on the beam, which faces the outer side wall of the frame, to form an exhaust port, the exhaust port is communicated with the explosion-proof valve, the other end of the exhaust channel is opened on the top wall of the beam to form an air inlet, and the air inlet is communicated with a battery space; wherein, along the first horizontal direction, the position of the air inlet corresponds to the position of a plurality of the poles of at least one battery column.

2. The battery device according to claim 1, wherein the battery device includes at least two of the battery columns, the at least two of the battery columns being arranged in a second horizontal direction, the second horizontal direction being perpendicular to the first horizontal direction; wherein the position of at least one air inlet corresponds to the positions of a plurality of polar columns of two adjacent battery columns at the same time.

3. The battery device of claim 1, wherein the top wall of the beam has first and second stepped walls of different heights, and the air inlet includes first and second regions in communication, the first and second regions opening into the first and second stepped walls, respectively.

4. The battery device of claim 3, wherein the first step wall is lower than the second step wall, the first step wall being closer to the bezel than the second step wall.

5. The battery device of claim 4, wherein a first rib is disposed in the interior cavity, the first rib separating the interior cavity along a first horizontal direction, the first horizontal direction being perpendicular to the direction of extension of the beam; the first rib plate is provided with a first through hole, so that the exhaust channel is connected with two parts of the first area and the second area of the air inlet.

6. The battery device of claim 5, wherein the top wall of the beam has a vertical wall connected between the first step wall and the second step wall; the top of the first rib plate is connected to the bottom of the vertical wall, a first notch is formed in the position, corresponding to the air inlet, of the top of the first rib plate, a second notch is formed in the position, corresponding to the air inlet, of the vertical wall, and the first notch and the second notch are communicated to form the first through hole together.

7. The battery device according to claim 5, wherein a second rib is further provided in the inner cavity, the second rib being parallel to the bottom wall of the beam and dividing the inner cavity in the height direction, the second rib being connected between the first rib and the outer side wall of the beam toward the frame; the arrangement height of at least one second rib plate is higher than that of the exhaust port, a second through hole is formed in the second rib plate with the arrangement height higher than that of the exhaust port, and the second through hole participates in forming the exhaust channel.

8. The battery device of claim 7, wherein a third rib is further disposed in the inner cavity, the third rib being parallel to the bottom wall of the beam and separating the inner cavity in a height direction, the third rib being connected between the first rib and an inner sidewall of the beam facing the battery; wherein the first through hole is positioned above the uppermost third rib plate.

9. The battery device according to any one of claims 1 to 8, wherein at least two of the exhaust passages are formed in the inner cavity of the beam, the at least two of the exhaust passages including at least one first passage and at least one second passage, the at least one first passage being arranged in one-to-one correspondence with the at least one explosion-proof valve, the second passage being arranged offset from the explosion-proof valve in a second horizontal direction, the second horizontal direction being an extending direction of the beam, the second passage being communicated with the first passage and sharing an exhaust port of the first passage.

10. The battery device according to any one of claims 1 to 8, wherein the frame and the beam are integrally formed, and the inner side wall of the frame and the outer side wall of the frame share a wall surface, and the exhaust port is opened in the wall surface.