CN222601126U

CN222601126U - BMS board heat dissipation structure and energy storage battery

Info

Publication number: CN222601126U
Application number: CN202421212862.6U
Authority: CN
Inventors: 石峰; 张微中; 柳华勤; 赵青
Original assignee: Daqin New Energy Technology Taizhou Co ltd
Current assignee: Daqin New Energy Technology Taizhou Co ltd
Priority date: 2024-05-30
Filing date: 2024-05-30
Publication date: 2025-03-11
Anticipated expiration: 2034-05-30

Abstract

The utility model belongs to the technical field of BMS board heat dissipation, and discloses a BMS board heat dissipation structure and an energy storage battery. The BMS board heat dissipation structure includes a first heat conducting plate and a second heat conducting plate, one side of the first heat conducting plate abuts against one side of the BMS board, and one side of the second heat conducting plate abuts against the other side of the BMS board. Among them, the top of the first heat conducting plate is connected to the shell, or the top of the second heat conducting plate is connected to the shell, or the top of the first heat conducting plate and the top of the second heat conducting plate are both connected to the shell. The heat of the BMS board can be transferred to the shell, and the heat is quickly dissipated to the outside of the shell through the shell, achieving a good heat dissipation effect of the BMS board, ensuring the service life of the parts, and having a simple structure and easy use. The energy storage battery transfers the heat of the BMS board to the air in the shell and the shell through the BMS board heat dissipation structure, achieving a better heat dissipation effect, and effectively preventing the damage of components in the energy storage battery due to excessive temperature.

Description

BMS board heat radiation structure and energy storage battery

Technical Field

The utility model relates to the technical field of BMS (battery management system) board heat dissipation, in particular to a BMS board heat dissipation structure and an energy storage battery.

Background

The Battery management system (Battery MANAGEMENT SYSTEM, BMS) is a device for monitoring the state of the energy storage Battery, and is mainly used for intelligently managing and maintaining each Battery unit, preventing the Battery from being overcharged and overdischarged, prolonging the service life of the Battery and monitoring the state of the Battery. Typically, the BMS is embodied as a circuit board, i.e., a BMS board, or a hardware box. BMS board or BMS protection box pass through sampling line, nickel piece etc. and pack connection that the electric core is constituteed, through the real-time supervision to system state, reaches the purpose of management group battery.

The energy storage battery pack heating body consists of an electric core and a BMS plate. When the energy storage battery pack works normally, the battery core and the BMS plate can heat due to power loss, wherein the BMS plate is most harmful to heat, and the service life of the product is seriously influenced. At present, a common heat dissipation mode of the energy storage battery pack in the market is to blow air to the BMS plate by a fan and naturally dissipate heat, but heat is not easy to spread in the inner space of a product, the air blowing and heat dissipation of the fan are limited due to the service life of the fan, the natural heat dissipation can shorten the service life due to the fact that the inner temperature of the energy storage battery pack is too high due to long time, and serious components are damaged, so that the product cannot be used and is scrapped.

Therefore, there is a need for a heat dissipation structure of a BMS board and an energy storage battery to solve the above problems.

Disclosure of utility model

The utility model aims to provide a BMS plate heat dissipation structure which can improve heat transfer efficiency of a BMS plate and realize rapid heat dissipation.

To achieve the purpose, the utility model adopts the following technical scheme:

Provided is a BMS board heat dissipation structure, including:

A first heat conductive plate, one surface of which is abutted against one surface of the BMS plate;

a second heat conductive plate, one surface of which is abutted against the other surface of the BMS plate;

Wherein the top of the first heat conducting plate is connected with the shell;

and/or, the top of the second heat conducting plate is connected with the shell.

As an alternative of the heat dissipation structure of the BMS board, the first heat conduction plate includes a first connection part and a first heat dissipation fin, the first connection part is abutted to the BMS board, and the first heat dissipation fin is connected to the first connection part.

As an alternative of the heat dissipation structure of the BMS board, the second heat conduction board includes a second connection part and a second heat dissipation fin, the second connection part is abutted to the BMS board, and the second heat dissipation fin is connected to the second connection part.

As an alternative to the heat dissipation structure of the BMS board, the top of the first heat conduction plate penetrates through the housing.

As an alternative to the heat dissipation structure of the BMS board, the top of the second heat conduction plate penetrates through the housing.

As an alternative to the BMS board heat dissipation structure, the BMS board heat dissipation structure further includes a fan located at one side of the BMS board.

As an alternative scheme of the heat dissipation structure of the BMS board, a first ventilation groove is formed in one surface of the first heat conduction plate, which is close to the BMS board, and the first ventilation groove extends to the top of the fan and the top of the first heat conduction plate.

As an alternative scheme of the heat dissipation structure of the BMS board, a second ventilation groove is formed in one surface of the second heat conduction board, which is close to the BMS board, and the second ventilation groove extends to the top of the fan and the top of the second heat conduction board.

Another object of the present utility model is to provide an energy storage battery capable of transferring heat of a BMS board to a housing to achieve rapid diffusion of heat of the BMS board.

Energy storage battery, including BMS board, casing, battery module and foretell BMS board heat radiation structure, BMS board battery module with BMS board heat radiation structure is located in the casing, BMS board with battery module signal connection.

As an alternative of the energy storage battery, the energy storage battery further comprises an indicator light assembly, wherein the indicator light assembly comprises an indicator light, and the indicator light is electrically connected with the battery module.

The utility model has the beneficial effects that:

The utility model provides a BMS plate heat dissipation structure, which comprises a first heat conduction plate and a second heat conduction plate, wherein the first heat conduction plate and the second heat conduction plate are respectively abutted against two sides of a BMS plate, so that heat of the BMS plate is transferred to the internal air of an energy storage battery through the first heat conduction plate and the second heat conduction plate, and the heat dissipation efficiency of the BMS plate is accelerated. The first heating panel top is connected with the casing, or the second heat-conducting plate is connected with the casing, or first heat-conducting plate and second heat-conducting plate are all connected with the casing for on the heat of BMS board can be transmitted the casing, outside the casing is given off the heat fast through the casing, realized the good radiating effect of BMS board, guaranteed the life of part, simple structure, convenient to use.

The utility model also provides the energy storage battery, the heat of the BMS plate is transferred to the air in the shell and the shell through the BMS plate heat radiation structure, so that a better heat radiation effect is achieved, the damage of components in the energy storage battery caused by overhigh temperature is effectively prevented, and the energy storage battery is simple in structure and convenient to use.

Drawings

Fig. 1 is a schematic structural view of a first heat conductive plate of a heat dissipation structure of a BMS board according to the present utility model;

Fig. 2 is a schematic structural diagram of an energy storage battery provided by the present utility model.

In the figure:

1. the first heat-conducting plate, 11, the first connecting part, 12, the first ventilation groove;

2. a second heat conductive plate 100, BMS plate;

200. The device comprises a shell, a shell main body, 211, a motor binding post, 212, a signal transmission connector, 213, a switch, 220, a cover plate, 221 and a viewing hole;

300. A battery module;

400. An indicator lamp assembly, 410, an indicator lamp, 420 and a lampshade.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may, for example, be fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, directly connected, indirectly connected through an intervening medium, or in communication between two elements or in an interaction relationship 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.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

As shown in fig. 1 and 2, the BMS board heat dissipation structure of the present embodiment includes a first heat conduction board 1 and a second heat conduction board 2, wherein one surface of the first heat conduction board 1 abuts against one surface of the BMS board 100, and one surface of the second heat conduction board 2 abuts against the other surface of the BMS board 100. Wherein, the top of the first heat-conducting plate 1 is connected with the shell 200, or the top of the second heat-conducting plate 2 is connected with the shell 200, or the tops of the first heat-conducting plate 1 and the second heat-conducting plate 2 are connected with the shell 200.

The BMS board heat radiation structure that this embodiment provided, first heat-conducting plate 1 and second heat-conducting plate 2 butt respectively in the two sides of BMS board 100 for BMS board 100 passes through two contact surfaces and gives first heat-conducting plate 1 and second heat-conducting plate 2 with heat transfer, realizes the quick heat conduction of BMS board 100, and first heat-conducting plate 1 and second heat-conducting plate 2 further with heat transfer to in the air, realize the heat dissipation of BMS board 100. And, at least one of the first heat-conducting plate 1 and the second heat-conducting plate 2 is connected with the shell 200, and can transfer heat to the shell 200, and the heat is transferred to the outside of the energy storage battery through the shell 200, so that the heat of the BMS plate 100 is quickly diffused, a good heat dissipation effect is realized, the service life of parts is ensured, the structure is simple, and the use is convenient.

Further, this BMS board heat radiation structure still includes the fan, and the fan sets up in one side of BMS board 100, first heat-conducting plate 1 and second heat-conducting plate 2 for the air flow on BMS board 100, first heat-conducting plate 1 and second heat-conducting plate 2 surface is favorable to BMS board 100, first heat-conducting plate 1 and second heat-conducting plate 2 to give the air with heat transfer, improves the cooling effect of BMS board 100 through opening the fan.

Referring to fig. 1, one side of the first heat conductive plate 1, which is close to the BMS plate 100, may be provided with a first ventilation groove 12, the first ventilation groove 12 extends toward the top of the fan and the first heat conductive plate 1, and a first passage is formed between the first ventilation groove 12 and the BMS plate 100, so that air can flow in the first passage, and the BMS plate not only can transfer heat to the first heat conductive plate 1, but also can transfer heat to the air, thereby further improving the heat conductive efficiency of the BMS plate 100. Of course, the first ventilation slots 12 may extend in other directions to facilitate the flow of air within the housing 200.

Further, the second heat conductive plate 2 may be provided with a second ventilation groove (not shown) at a side thereof adjacent to the BMS plate 100, the second ventilation groove extending toward the fan and the top of the second heat conductive plate 2. A second channel is formed between the second ventilation slot and the BMS plate 100, so that air can flow in the second channel, and the BMS plate can transfer heat to the air in the second channel while transferring heat to the second heat-conducting plate 1, thereby further improving the heat-conducting efficiency of the BMS plate 100. Of course, the second ventilation slots may extend in other directions to facilitate the flow of air within the housing 200.

Optionally, the top of the housing 100 may be provided with a first heat dissipation hole, and the top of the first heat conduction plate 1 may penetrate through the housing 200 through the first heat dissipation hole, so that the first heat conduction plate 1 may directly contact with air outside the housing 200, so as to realize that the first heat conduction plate 1 directly transfers heat to air outside the housing 200, and improve the heat dissipation efficiency of the first heat conduction plate 1.

Optionally, the top of the housing 100 may be provided with a second heat dissipation hole, and the top of the second heat conduction plate 2 may penetrate through the housing 200 through the second heat dissipation hole, so that the second heat conduction plate 2 may directly contact with air outside the housing 200, so as to realize that the second heat conduction plate 2 directly transfers heat to air outside the housing 200, and improve the heat dissipation efficiency of the second heat conduction plate 2.

Further, the first heat conductive plate 1 includes a first connection part 11 and first heat dissipation fins (not shown in the figure), the first heat dissipation fins are provided in plurality, the first connection part 11 is abutted to the BMS plate 100, the first heat dissipation fins are connected to the first connection part 11, the heat dissipation area of the first heat conductive plate 1 is enlarged, and the heat dissipation efficiency of the first heat conductive plate 1 is improved. In some embodiments, the plurality of first heat dissipating fins are uniformly arranged on top of the first connection portion 11, and the first heat dissipating fins can contact or penetrate out of the housing 200 to transfer heat to the housing 200 and the outside of the housing 200. In some other embodiments, the first heat dissipation fins may also be connected to a surface of the first connection portion 11 facing away from the BMS board 100, and the plurality of first heat dissipation fins are uniformly arranged on the first connection portion 11, so as to facilitate heat exchange between the first heat conduction board 1 and the air inside the housing 200.

Further, the second heat conductive plate 2 includes a plurality of second connection parts and second heat dissipation fins, the second heat dissipation fins are provided, the second connection parts are abutted to the BMS board 100, the second heat dissipation fins are connected to the second connection parts, the heat dissipation area of the second heat conductive plate 2 is enlarged, and the heat dissipation efficiency of the second heat conductive plate 2 is improved. In some embodiments, the plurality of second heat dissipating fins are uniformly arranged on top of the second connection portion, and the second heat dissipating fins can contact or pass out of the housing 200 to transfer heat to the housing 200 and the outside of the housing 200. In some other embodiments, the second heat dissipation fins may also be connected to a surface of the second connection portion facing away from the BMS board 100, and the plurality of second heat dissipation fins are uniformly arranged on the second connection portion, so as to facilitate heat exchange between the second heat conduction board and the air inside the housing 200.

As shown in fig. 2, this embodiment also provides an energy storage battery, including BMS board 100, casing 200, battery module 300 and foretell BMS board heat radiation structure, BMS board 100, battery module 300 and BMS board heat radiation structure are located casing 200, and BMS board 100 and battery module 300 signal connection.

This energy storage battery passes through BMS board heat radiation structure and transmits the air and the casing in the casing with the heat of BMS board on, reaches better radiating effect, has effectively prevented that the high temperature from leading to the damage of components and parts in the energy storage battery, simple structure, convenient to use. The energy storage battery can be hung on a wall for use and can be installed on the ground. In the production process, a plurality of battery modules 300 are preassembled into a whole at the early stage and then are arranged in the shell 200, so that the assembly line installation steps are reduced, and the production line efficiency is improved.

Further, the case 200 includes a housing body 210 and a cap plate 220, the housing body 210 is formed with a receiving cavity, and the BMS board 100, the case 200, the battery module 300, and the BMS board heat dissipation structure are located in the receiving cavity, and the cap plate 220 covers an opening of the housing body 210 to prevent foreign substances from entering the receiving cavity.

Further, the housing main body 210 is provided with a motor terminal 211, a signal transmission connector 212, and a switch 213. The motor binding post 211 comprises a positive electrode binding post and a negative electrode binding post, the positive electrode binding post is connected with the positive electrode of the battery module 300, the negative electrode binding post is connected with the negative electrode of the battery module 300, and the electrode binding post 211 is used for being connected with an external electricity utilization device or other energy storage batteries to realize electricity utilization of the energy storage batteries. The signal transmission connector 212 is connected with the BMS board 100 in a signal manner, and the signal transmission connector 212 is connected with external communication equipment in an external manner to realize signal transmission between the inside and the outside of the energy storage battery. In some embodiments, the signal transmission connector 212 may use a wireless transmission mode to perform signal transmission, which is more convenient and quick. The switch 213 is used to control the opening and closing of the energy storage cell.

Further, the energy storage battery further comprises an indicator light assembly 400, the indicator light assembly 400 comprises an indicator light 410 and a lamp shade 420, the indicator light 410 is located in the accommodating cavity and is electrically connected with the battery module 300, and the lamp shade 420 is connected to the cover plate 220 and corresponds to the indicator light 410 in position. The operating state of the energy storage battery can be observed by displaying different contents through the indication lamp 410. The lamp cover 420 can protect the indicator lamp 410, and the light scattering of the indicator lamp 410 is more uniform through refraction.

Optionally, the cover 220 is provided with an observation hole 221, and the lamp shade 420 is correspondingly installed at the observation hole 221, so that the indicator light 410 can be directly observed through the observation hole 221, so that frequent opening of the cover 220 is not required when the indicator light 410 is observed.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims

1. A BMS board heat dissipation structure, comprising:

A first heat conduction plate (1), wherein one surface of the first heat conduction plate (1) is abutted against one surface of the BMS plate (100);

a second heat conduction plate (2), wherein one surface of the second heat conduction plate (2) is abutted against the other surface of the BMS plate (100);

wherein the top of the first heat conducting plate (1) is connected with the shell (200);

and/or the top of the second heat conducting plate (2) is connected with the shell (200).

2. The BMS board heat dissipation structure according to claim 1, wherein the first heat conduction board (1) comprises a first connection portion (11) and a first heat dissipation fin, the first connection portion (11) being abutted to the BMS board (100), the first heat dissipation fin being connected to the first connection portion (11).

3. The BMS board heat dissipation structure according to claim 1, wherein the second heat conduction plate (2) comprises a second connection portion abutting against the BMS board (100) and a second heat dissipation fin connected to the second connection portion.

4. The BMS board heat dissipation structure according to claim 1, wherein the top of the first heat conduction plate (1) protrudes out of the housing (200).

5. The BMS board heat dissipation structure according to claim 1, wherein the top of the second heat conduction plate (2) protrudes out of the housing (200).

6. The BMS board heat dissipation structure according to claim 1, further comprising a fan located at one side of the BMS board (100).

7. The BMS board heat dissipation structure according to claim 6, wherein a first ventilation groove (12) is provided at a side of the first heat conduction board (1) close to the BMS board (100), and the first ventilation groove (12) extends toward the fan and the top of the first heat conduction board (1).

8. The heat dissipation structure of the BMS board according to claim 6, wherein a second ventilation groove is provided at a side of the second heat conduction board (2) close to the BMS board (100), and the second ventilation groove extends toward the fan and the top of the second heat conduction board (2).

9. Energy storage battery, including BMS board (100), casing (200) and battery module (300), its characterized in that, energy storage battery still includes the BMS board heat radiation structure of any one of claims 1-8, BMS board (100), battery module (300) with BMS board heat radiation structure is located in casing (200), BMS board (100) with battery module (300) signal connection.

10. The energy storage battery of claim 9, further comprising an indicator light assembly (400), the indicator light assembly (400) comprising an indicator light (410), the indicator light (410) being electrically connected to the battery module (300).