CN219917318U

CN219917318U - Battery box and battery

Info

Publication number: CN219917318U
Application number: CN202321624163.8U
Authority: CN
Inventors: 吴纯华; 李铄玙; 金佺良; 於洪将
Original assignee: Jiangsu Zenio New Energy Battery Technologies Co Ltd
Current assignee: Jiangsu Zenio New Energy Battery Technologies Co Ltd
Priority date: 2023-06-26
Filing date: 2023-06-26
Publication date: 2023-10-27
Anticipated expiration: 2033-06-26

Abstract

The utility model relates to the technical field of batteries, in particular to a battery box and a battery, wherein the battery box comprises a bottom plate and a frame connected with the bottom plate, a battery accommodating cavity is formed by surrounding the bottom plate and the frame, the bottom plate is provided with a heat exchange runner, and the heat exchange runner is provided with a water inlet end and a water outlet end; the frame is provided with a water inlet flow passage and a water outlet flow passage which are mutually separated, the water inlet flow passage is communicated with the water inlet end, and the water outlet flow passage is communicated with the water outlet end. The utility model provides a structure integrating a water inlet and outlet channel and a box body frame, which cancels a water inlet and outlet pipe in the envelope of a battery pack, directly uses the structure of the box body frame as a water inlet and outlet pipeline, further saves space, optimizes the internal space structure of the battery pack, greatly improves the utilization efficiency of the internal structure of the battery pack and reduces cost.

Description

Battery box and battery

Technical Field

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

Background

At present, the water cooling system is an important component in the box body of the battery pack, the water cooling system also occupies a large space in the battery pack, the water cooling plate needs a water inlet pipe and a water outlet pipe and is generally arranged in the front space of the battery pack, BDU, BMS and other important devices are needed to be placed in the front space of the battery pack, and if the space of the battery pack is compact, the position space of the water inlet pipe and the water outlet pipe is limited.

Disclosure of Invention

The utility model aims to provide a battery box and a battery, which solve the technical problems that the water inlet pipeline and the water outlet pipeline of a water cooling plate of a battery pack box occupy larger space and the installation of the battery pack is limited if the space of the battery pack is compact to a certain extent.

The utility model provides a box body of a battery pack, which comprises a bottom plate and a frame connected to the bottom plate, wherein a battery accommodating cavity is formed by surrounding the bottom plate and the frame, the bottom plate is provided with a heat exchange flow channel, and the heat exchange flow channel is provided with a water inlet end and a water outlet end;

the frame is provided with a water inlet flow passage and a water outlet flow passage which are mutually separated, the water inlet flow passage is communicated with the water inlet end, and the water outlet flow passage is communicated with the water outlet end.

In the above technical solution, further, the frame includes a first side plate and a second side plate that are disposed at opposite intervals along the first direction, and the first side plate is internally formed with the water inlet flow channel and the water outlet flow channel.

In any of the above technical solutions, further, a partition plate is provided inside the first side plate to separate the water inlet flow channel from the water outlet flow channel.

In any of the above technical solutions, further, a water inlet hole is formed in a side wall of the water inlet channel, which is away from the accommodating cavity, a water outlet hole is formed in a side wall of the water outlet channel, which is away from the accommodating cavity, and the water inlet hole and the water outlet hole are located on the same side wall of the first side plate.

In any of the above technical solutions, further, the cross section of the first side plate is L-shaped, one end of the first side plate has a strip-shaped insertion protrusion, the water inlet flow channel and the water outlet flow channel extend into the insertion protrusion, and the insertion protrusion is inserted into the water inlet end and the water outlet end.

The utility model also provides a battery box body, which comprises a bottom plate and a frame connected with the bottom plate, wherein a battery accommodating cavity is formed by surrounding the bottom plate and the frame, the bottom plate is provided with a heat exchange flow channel, and the heat exchange flow channel is provided with a water inlet end and a water outlet end;

the frame is provided with a water inlet flow passage and a water outlet flow passage which are mutually separated, the water inlet flow passage is communicated with the water inlet end, and the water outlet flow passage is communicated with the water outlet end;

the frame comprises a first side plate and a second side plate which are arranged at intervals along a first direction, the water inlet flow channel is formed in the first side plate, and the water outlet flow channel is formed in the second side plate.

In the above technical solution, further, a cross section of at least one of the first side plate and the second side plate is L-shaped.

In any of the above technical solutions, further, one end of at least one of the first side plate and the second side plate has a strip-shaped insertion protrusion, the water inlet channel or the water outlet channel extends into the insertion protrusion, and one insertion protrusion is inserted into the water inlet end or the water outlet end.

In any of the above technical solutions, further, the heat exchange channels are multiple and are distributed in the bottom plate at intervals along a second direction, each heat exchange channel extends along a first direction, and the second direction is perpendicular to the first direction.

The utility model also provides a battery, which comprises an electric core and the battery box body according to any one of the technical schemes, so that the battery has all the beneficial technical effects of the battery box body, and the details are not repeated here.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model provides a structure integrating a water inlet and outlet channel and a box body frame, which cancels a water inlet and outlet pipe in the envelope of a battery pack, directly uses the structure of the box body frame as a water inlet and outlet pipeline, further saves space, optimizes the internal space structure of the battery pack, greatly improves the utilization efficiency of the internal structure of the battery pack and reduces cost.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of a case of a battery pack according to an embodiment of the present utility model;

fig. 2 is another schematic structural view of a case of the battery pack according to the embodiment of the present utility model;

fig. 3 is a schematic view of another structure of a case of the battery pack according to the embodiment of the present utility model;

FIG. 4 is a cross-sectional view taken along section A-A of FIG. 3;

fig. 5 is a schematic view of another structure of a case of the battery pack according to the embodiment of the present utility model;

FIG. 6 is a cross-sectional view taken along section B-B of FIG. 5;

FIG. 7 is a partial view of FIG. 6;

FIG. 8 is another partial view of FIG. 6;

FIG. 9 is a schematic structural diagram of a base plate according to an embodiment of the present utility model;

FIG. 10 is a cross-sectional view taken along section C-C of FIG. 9;

fig. 11 is a schematic structural view of a first side plate according to an embodiment of the present utility model;

fig. 12 is a schematic structural diagram of a second side plate according to an embodiment of the present utility model.

Reference numerals:

1-bottom plate, 11-heat exchange flow channel, 2-frame, 21-first curb plate, 211-inlet, 212-inlet flow channel, 213-outlet, 214-outlet flow channel, 215-first grafting protrusion, 22-second curb plate, 221-second grafting protrusion, 23-third curb plate, 24-fourth curb plate, 25-baffle.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown.

The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of 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.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

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.

A battery case and a battery according to some embodiments of the present utility model are described below with reference to fig. 1 to 12.

Example 1

Referring to fig. 1 to 12, an embodiment of the present utility model provides a battery case, including a base plate 1 and a frame 2 connected to the base plate 1, the base plate 1 and the frame 2 enclosing a battery accommodating chamber, the base plate 1 having a heat exchanging flow passage 11, the heat exchanging flow passage 11 having a water inlet end and a water outlet end;

the frame 2 has a water inlet flow passage 212 and a water outlet flow passage 214 which are separated from each other, the water inlet flow passage 212 communicates with the water inlet end, and the water outlet flow passage 214 communicates with the water outlet end.

Based on the above-described structure, the utility model provides an integrated structure of the water inlet and outlet channel and the box frame 2, which cancels the water inlet and outlet pipe in the envelope of the battery pack, directly uses the structure of the box frame 2 as the water inlet and outlet pipeline, thereby saving space, optimizing the internal space structure of the battery pack, greatly improving the utilization efficiency of the internal structure of the battery pack and reducing cost.

In this embodiment, preferably, as shown in fig. 1, 3 and 4, the frame 2 includes a first side plate 21 and a second side plate 22 disposed at opposite intervals in a first direction, and a water inlet flow passage 212 and a water outlet flow passage 214 are formed inside the first side plate 21.

According to the above-described structure, the water inlet channel 212 and the water outlet channel 214 are integrated on the same side plate, so that the integration level is higher, and the processing and the manufacturing and the later maintenance are convenient.

In this embodiment, preferably, as shown in fig. 4, the first side plate 21 has a partition plate 25 inside which the water inlet flow passage 212 is partitioned from the water outlet flow passage 214.

According to the above-described structure, the separator 25 effectively separates the water inlet channel 212 from the water outlet channel 214, so as to avoid mixing the water flows of the water inlet and outlet, and to avoid affecting the circulation and heat exchange effect (note: the cooling liquid can be introduced into the channels, or the heating liquid can be introduced into the channels, specifically selected according to actual needs).

Further, it is preferable that the partition plate 25 is disposed perpendicular to the direction of the bottom plate 1, that is, the partition plate 25 is disposed parallel to the vertical direction.

In this embodiment, as shown in fig. 1, preferably, a side wall of the water inlet channel 212 away from the accommodating cavity is provided with a water inlet hole 211, a side wall of the water outlet channel 214 away from the accommodating cavity is provided with a water outlet hole 213, and the water inlet hole 211 and the water outlet hole 213 are located on the same side wall of the first side plate 21.

According to the above-described structure, the water inlet 211 and the water outlet 213 are integrated on the same side plate, so that the integration level is higher, and the processing and the subsequent maintenance are facilitated, and further, preferably, the water inlet 211 and the water outlet 213 are also separated by the aforementioned partition 25, that is, one on the left side and one on the right side, which do not affect each other.

Further, it is preferable that the water inlet 211 and the water outlet 213 are at the same height from the bottom plate 1, that is, at the same height, particularly, near the bottom plate 1, as shown in fig. 1 and 4, so that water inlet and water outlet are facilitated. Of course, not limited to this, both may be located at different height positions, and selected according to actual needs.

Further, as shown in fig. 1 and 4, the water inlet 211 and the water outlet 213 are preferably circular holes, which are regular in shape, and convenient to manufacture, so as to meet the requirement of later assembly, and of course, the water inlet is not limited to circular holes, but may be square holes, or holes with other shapes.

In this embodiment, preferably, as shown in fig. 7 and 11, the first side plate 21 has an L-shaped cross section, one end of the first side plate 21 has a strip-shaped insertion protrusion and a first insertion protrusion 215, the water inlet flow passage 212 and the water outlet flow passage 214 extend into the first insertion protrusion 215, and the first insertion protrusion 215 is inserted into the water inlet end and the water outlet end.

According to the above-described structure, it is preferable that the strip-shaped first insertion protrusion 215 is capable of being inserted into the heat exchange flow passage 11 of the bottom plate 1 so that the two are assembled more firmly, and furthermore, the water inlet flow passage 212 and the water outlet flow passage 214 extend to the first insertion protrusion 215, and the first insertion protrusion 215 is inserted into the water inlet end and the water outlet end, that is, the heat exchange liquid is introduced into the heat exchange flow passage 11 in the bottom plate 1 through the first insertion protrusion 215, which contributes to improvement of sealability.

Further, it is preferable that the strip-shaped first plugging protrusion 215 extends from one end to the other end along the length direction of the first side plate 21, however, not limited thereto, the first plugging protrusion 215 may be provided in plurality and sequentially spaced along the length direction of the first side plate 21, and is specifically selected according to practical needs.

In this embodiment, preferably, as shown in fig. 10, the heat exchange flow channels 11 are plural and are distributed in the bottom plate 1 at intervals along the second direction, and each heat exchange flow channel 11 extends along the first direction, and the second direction is perpendicular to the first direction.

As can be seen from the above-described structure, the heat exchange effect can be increased by using a plurality of heat exchange channels 11, and preferably, along the second direction, the plurality of heat exchange channels can be divided into two areas, the heat exchange channel 11 in the area corresponding to the water inlet channel 212 on the left side is communicated with the water inlet channel 212, and the heat exchange channel 11 in the area corresponding to the water outlet channel 214 on the right side is communicated with the water outlet channel 214, i.e. a U-shaped channel structure is formed.

In this embodiment, as shown in fig. 8 and 12, the second side plate 22 is also preferably formed with a second insertion protrusion 221, which is inserted into the heat exchange flow passage 11 of the bottom plate 1 to function as a closed flow passage at the other end to avoid leakage.

In this embodiment, preferably, as shown in fig. 1 and 2, the frame 2 is a rectangular frame 2, which further includes a third side plate 23 and a fourth side plate 24, and the bottom plate 1 is a square plate, and of course, not limited thereto, the frame 2 may also adopt other polygonal structures, and correspondingly, the shape of the bottom plate 1 may be adjusted.

Example two

The second embodiment is basically the same as the first embodiment in terms of the structure, and thus the structure disclosed in the first embodiment also belongs to the structure disclosed in the first embodiment, and has the same effects, and will not be described in detail here. The second embodiment is different from the first embodiment in the structure of the battery case disclosed in the first embodiment in that: the frame includes along the relative interval setting of first direction first curb plate and second curb plate, and first curb plate inside is formed with the water inlet channel, and the second curb plate is formed with the water outlet channel.

According to the structure described above, the battery box provided in this embodiment is still a structure integrating the water inlet and outlet channels with the box frame, so that the water inlet and outlet pipes in the battery pack envelope are eliminated, the structure of the box frame is directly utilized as the water inlet and outlet pipes, the space is further saved, the internal space structure of the battery pack is optimized, the utilization efficiency of the internal structure of the battery pack is greatly improved, and the cost is reduced.

In addition, the water inlet flow channel and the water outlet flow channel are separately arranged on the two side plates, namely, one side is used for water inlet, and the other side is used for water outlet, so that the functions of the two side plates are not affected.

Further, preferably, when the water inlet flow passage and the water outlet flow passage are provided separately on the two side plates, that is, one side is fed with water and the other side is discharged with water, the water inlet hole and the water outlet hole are provided separately on the first side plate and the second side plate, that is, they are not provided on the same side plate.

Further, it is preferable that at least one of the first side plate and the second side plate is L-shaped in cross section, that is, a part of the structure thereof can be extended to the bottom and butt-fitted with the bottom plate.

Further, preferably, one end of at least one of the first side plate and the second side plate has a strip-shaped insertion protrusion, the water inlet flow passage or the water outlet flow passage extends into the insertion protrusion, and one insertion protrusion is inserted into the water inlet end or the water outlet end, so that not only is the assembly with the bottom plate improved in shape and stability, but also the sealing performance is improved.

Example III

The third embodiment of the present utility model further provides a battery, including the battery core and the battery case body in the first embodiment, where the battery core is stacked in the case body, so that the battery case body has all the beneficial technical effects, and the same technical features and beneficial effects are not repeated.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims

1. The battery box body is characterized by comprising a bottom plate and a frame connected to the bottom plate, wherein a battery accommodating cavity is formed by surrounding the bottom plate and the frame, the bottom plate is provided with a heat exchange runner, and the heat exchange runner is provided with a water inlet end and a water outlet end;

2. The battery case according to claim 1, wherein the frame includes a first side plate and a second side plate disposed at opposite intervals along a first direction, the first side plate being formed inside with the water inlet flow passage and the water outlet flow passage.

3. The battery box of claim 2, wherein the first side plate has a partition inside that separates the water inlet flow passage from the water outlet flow passage.

4. The battery box of claim 3, wherein the water inlet channel is provided with a water inlet hole on a side wall facing away from the accommodating cavity, the water outlet channel is provided with a water outlet hole on a side wall facing away from the accommodating cavity, and the water inlet hole and the water outlet hole are positioned on the same side wall of the first side plate.

5. The battery box according to claim 3, wherein the cross section of the first side plate is L-shaped, one end of the first side plate is provided with a strip-shaped insertion protrusion, the water inlet flow passage and the water outlet flow passage extend into the insertion protrusion, and the insertion protrusion is inserted into the water inlet end and the water outlet end.

6. The battery box of claim 1, wherein the frame includes a first side plate and a second side plate disposed at opposite intervals along a first direction, the first side plate being formed with the water inlet flow passage inside, and the second side plate being formed with the water outlet flow passage.

7. The battery box of claim 6, wherein at least one of the first side plate and the second side plate is L-shaped in cross section.

8. The battery box of claim 7, wherein one end of at least one of the first side plate and the second side plate has a strip-shaped insertion protrusion, the water inlet flow passage or the water outlet flow passage extends into the insertion protrusion, and one of the insertion protrusions is inserted into the water inlet end or the water outlet end.

9. The battery box of claim 1, wherein the heat exchange channels are a plurality of and are spaced apart in the bottom plate along a second direction, each heat exchange channel extending along a first direction, the second direction being perpendicular to the first direction.

10. A battery comprising a battery cell and the battery case of any one of claims 1 to 9, the battery cell being stacked within the case.