CN219163505U

CN219163505U - Battery module and electric equipment

Info

Publication number: CN219163505U
Application number: CN202320055963.6U
Authority: CN
Inventors: 陈明胤; 袁金荣; 赖元华; 聂鑫
Original assignee: Gree Electric Appliances Inc of Zhuhai; Guochuang Energy Internet Innovation Center Guangdong Co Ltd
Current assignee: Gree Electric Appliances Inc of Zhuhai; Guochuang Energy Internet Innovation Center Guangdong Co Ltd
Priority date: 2023-01-09
Filing date: 2023-01-09
Publication date: 2023-06-09
Anticipated expiration: 2033-01-09

Abstract

The utility model discloses a battery module and electric equipment, the battery module includes: the battery box comprises a box body and a battery, wherein a battery placing channel for placing the battery is arranged in the box body, a first liquid cooling channel and a second liquid cooling channel are further arranged on the box body, the battery placing channel is arranged around the first liquid cooling channel, and the second liquid cooling channel is arranged around the battery placing channel. The battery in the battery module is clamped between the first liquid cooling channel and the second liquid cooling channel, so that the inner side and the outer side of the battery are synchronously subjected to heat dissipation in the operation process, the good heat dissipation effect of the battery module is ensured, the uniformity of temperature distribution after heat dissipation of the battery is ensured, and the use effect and the service life of the battery module are ensured.

Description

Battery module and electric equipment

Technical Field

The utility model relates to the technical field of battery modules, in particular to a battery module and electric equipment.

Background

In battery energy storage systems, temperature can directly affect the activity and conductivity, ion permeability, etc. of the electrode material, thereby affecting the electrochemical reaction inside the battery. If the battery works in a high-temperature environment for a long time, the service life of the battery is obviously shortened, the performance of the battery is greatly reduced, and even safety accidents are caused. In addition, uneven distribution of the temperature in the battery box body can also cause imbalance of performances of each battery module and single battery, physical differences among different batteries are more obvious along with time accumulation, so that consistency among the batteries is poor, even early failure occurs, and the service life of the whole battery energy storage system is shortened.

Therefore, the battery energy storage system is designed to take into consideration not only the heat dissipation problem of the battery but also the technical problem of uniform heat dissipation of the battery.

Disclosure of Invention

The utility model provides a battery module and electric equipment for solving the technical problem that a battery energy storage system in the prior art is uneven in heat dissipation.

The technical scheme adopted by the utility model is as follows:

the utility model provides a battery module and electric equipment, wherein the battery module comprises: the battery box comprises a box body and a battery, wherein a battery placing channel for placing the battery is arranged in the box body, a first liquid cooling channel and a second liquid cooling channel are further arranged on the box body, the battery placing channel surrounds the first liquid cooling channel, and the second liquid cooling channel surrounds the battery placing channel.

Further, the intelligent power supply box further comprises a main control board, a voltage acquisition module is arranged on the main control board, the main control board is fixed on the box body, and the voltage acquisition module is connected with the battery.

Further, a temperature acquisition module is arranged on the main control board and is connected with the battery.

Further, the box body comprises a detachable upper cover and a detachable lower cover, and positive and negative power line interfaces are arranged on the upper cover and the lower cover.

Furthermore, concave-convex structures are arranged on the upper cover and the lower cover.

Preferably, the material of the box body is metal.

Preferably, the box body is prismatic, the first liquid cooling channel is prismatic, and the battery placing channel and the second liquid cooling channel are polygonal annular bodies.

Further, the battery management unit BMU is connected with the battery.

The electric equipment comprises the battery module.

Compared with the prior art, the battery in the battery module is clamped between the first liquid cooling channel and the second liquid cooling channel, so that the inner side and the outer side of the battery are synchronously cooled in the operation process, the good cooling effect of the battery module is ensured, the uniformity of temperature distribution after the battery is cooled is also ensured, and the use effect and the service life of the battery module are ensured.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed 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 utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of a battery module according to an embodiment of the present utility model;

1. a case; 11. a battery placement channel; 12. a first liquid cooling channel; 13. a second liquid cooling channel; 2. and (3) a single battery.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

In battery energy storage systems, temperature can directly affect the activity and conductivity, ion permeability, etc. of the electrode material, thereby affecting the electrochemical reaction inside the battery. If the battery works in a high-temperature environment for a long time, the service life of the battery is obviously shortened, the performance of the battery is greatly reduced, and even safety accidents are caused. In addition, uneven distribution of the temperature in the battery box body can also cause imbalance of performances of each battery module and single battery, physical differences among different batteries are more obvious along with time accumulation, so that consistency among the batteries is poor, even early failure occurs, and the service life of the whole battery energy storage system is shortened. Therefore, the battery energy storage system is designed to take into consideration not only the heat dissipation problem of the battery, but also the technical problem of whether the heat dissipation of the battery is uniform.

Therefore, in order to solve the technical problem of uneven heat dissipation of the battery energy storage system in the prior art, the utility model provides a battery module, which comprises:

the battery placing device comprises a box body and a battery, wherein a battery placing channel for placing the battery is arranged in the box body, a first liquid cooling channel and a second liquid cooling channel for radiating the battery placing channel are further arranged in the box body, the battery placing channel is arranged around the first liquid cooling channel, and the second liquid cooling channel is arranged around the battery placing channel.

Therefore, the battery provided by the utility model is clamped between the first liquid cooling channel and the second liquid cooling channel, so that the heat dissipation of the inner side and the outer side of the battery is synchronously carried out in the operation process, the good heat dissipation effect of the battery module is ensured, the uniformity of the temperature distribution of the battery after heat dissipation is ensured, and the use effect and the service life of the battery module are ensured.

The principles and structures of the present utility model are described in detail below with reference to the drawings and the examples.

As shown in fig. 1, the present utility model provides a battery module, which comprises a prismatic case 1, wherein two ends of the case are provided with a detachable upper cover and a detachable lower cover, a prismatic first liquid cooling channel 12 is arranged in the center of the case, a battery placing channel 11 in a polygonal ring shape is arranged around the first liquid cooling channel 12, and a second liquid cooling channel 13 in a polygonal ring shape is arranged around the battery placing channel 11. The multiple single batteries 2 are placed in the battery placing channel 11, the multiple single batteries are connected in series or in parallel according to the requirements, and the battery placing channel can be internally provided with a partition board for dividing the battery placing channel into multiple layers from top to bottom, and the single batteries are placed in layers. The upper cover and the lower cover are provided with positive and negative power line interfaces, and electric equipment can be directly connected with the positive and negative power line interfaces when in use, so that the battery module supplies power for the battery module. The first liquid cooling channel and the second liquid cooling channel are internally provided with cooling liquid, so that the battery module clamps the single battery in the middle in the operation process, and synchronously takes away heat generated by the inner side and the outer side of the single battery, so that the temperature distribution is uniform after the single battery dissipates heat, and the service performance and the service life of the single battery are ensured.

Further, in order to increase the heat dissipation effect at two ends of the battery placement channel, the upper cover and the lower cover are respectively provided with a concave-convex structure, so that the heat dissipation area is increased, and the heat dissipation effect is improved. Meanwhile, in order to improve the heat dissipation effect, the box body is made of metal.

Further, the battery module further comprises a main control board fixed on the box body, a voltage acquisition module is arranged on the main control board and connected with the single battery, and real-time voltage of the single battery is acquired. And the main control board is also provided with a temperature acquisition module, the temperature acquisition module is connected with the single battery and acquires the real-time temperature of the single battery. In addition, the battery module further comprises a battery management unit BMU connected with the single battery.

Further, insulating layers are arranged on contact surfaces of the box body, the anode and the cathode of the single battery, the connecting aluminum row, the connecting wire harness and the like, so that electrical safety is guaranteed.

The utility model also provides electric equipment which comprises the battery module.

It is noted that the above-mentioned terms are used merely to describe specific embodiments, and are not intended to limit exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

In the description of the present application, it should be understood that, where azimuth terms such as "front, rear, upper, lower, left, right", "transverse, vertical, horizontal", and "top, bottom", etc., indicate azimuth or positional relationships generally based on those shown in the drawings, only for convenience of description and simplification of the description, these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present application; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are merely for convenience of distinguishing the corresponding components, and unless otherwise stated, the terms have no special meaning, and thus should not be construed as limiting the scope of the present application.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The battery module is characterized by comprising a box body and a battery, wherein a battery placing channel for placing the battery is arranged in the box body, a first liquid cooling channel and a second liquid cooling channel are further arranged on the box body, the battery placing channel surrounds the first liquid cooling channel, and the second liquid cooling channel surrounds the battery placing channel.

2. The battery module of claim 1, further comprising a main control board, wherein a voltage acquisition module is arranged on the main control board, the main control board is fixed on the box, and the voltage acquisition module is connected with the battery.

3. The battery module of claim 2, wherein the main control board is provided with a temperature acquisition module, and the temperature acquisition module is connected with the battery.

4. The battery module of claim 1, wherein the housing comprises a removable upper cover and a removable lower cover, the upper cover and the lower cover having positive and negative power line interfaces thereon.

5. The battery module according to claim 4, wherein the upper cover and the lower cover are provided with a concave-convex structure.

6. The battery module of claim 1, wherein the case is made of metal.

7. The battery module of claim 1, wherein the housing is prismatic, the first liquid cooling channel is prismatic, and the battery receiving channel and the second liquid cooling channel are polygonal rings.

8. The battery module of claim 1, further comprising a battery management unit BMU connected to the battery.

9. Electric equipment, characterized by comprising a battery module according to any of claims 1-8.