CN219144285U

CN219144285U - Battery module with heating function

Info

Publication number: CN219144285U
Application number: CN202222300171.9U
Authority: CN
Inventors: 胡超; 孙中伟; 沈高松
Original assignee: Shenzhen Hello Tech Energy Co Ltd
Current assignee: Shenzhen Hello Tech Energy Co Ltd
Priority date: 2022-08-31
Filing date: 2022-08-31
Publication date: 2023-06-06
Anticipated expiration: 2032-08-31

Abstract

The utility model relates to the technical field of energy storage equipment, and discloses a battery module with a heating function, which comprises: the battery cell assembly comprises a battery cell, an upper bracket and a lower bracket, wherein the upper bracket and the upper bracket are surrounded to form a containing cavity, the battery cell is arranged in the containing cavity, and nickel belts are respectively arranged at two ends of the battery cell; the heating component is arranged in the accommodating cavity and is connected or abutted with the nickel strap, and the heating component transmits heat to the battery cell through the nickel strap. The battery module with the heating function provided by the utility model can heat the battery core through the heating component, so that the battery module can be safely and reliably charged and discharged under the low-temperature condition, and has higher universality.

Description

Battery module with heating function

Technical Field

The utility model relates to the technical field of energy storage equipment, in particular to a battery module with a heating function.

Background

The battery module is a device capable of storing electric energy and outputting electric power to electric equipment, and under the condition of extremely low temperature (-40 ℃), the battery core in the existing battery module cannot be normally charged and discharged due to the fact that the temperature is too low, so that the battery module cannot work in an extremely low-temperature environment.

Therefore, there is a need for a battery module with a heating function to solve the above-mentioned problems.

Disclosure of Invention

Based on the above, the present utility model aims to provide a battery module with a heating function, wherein the heating component can heat the battery cell, so that the battery module can be charged and discharged safely and reliably under the low-temperature condition.

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

providing a battery module having a heating function, comprising:

the battery cell assembly comprises a battery cell, an upper bracket and a lower bracket, wherein the upper bracket and the lower bracket are surrounded to form a containing cavity, the battery cell is arranged in the containing cavity, and nickel belts are respectively arranged at two ends of the battery cell;

the heating component is arranged in the accommodating cavity and is connected or abutted with the nickel strap, and the heating component transmits heat to the battery cell through the nickel strap.

Specifically, the battery module with the heating function is used for heating the battery core by arranging the heating component in the accommodating cavity where the battery core is located, so that the battery module can safely and reliably work under the low-temperature condition. When the battery module in the extremely low temperature environment needs to be charged, the charging power supply supplies power to the heating component, the heating component heats and transfers heat to the battery cell, so that the temperature of the battery cell gradually rises to a temperature range capable of being charged normally, and the charging power supply can charge the battery cell normally. When the battery module in the extremely low temperature environment needs to be discharged, the battery cell supplies power to the heating component, the heating component heats and transfers heat to the battery cell, so that the temperature of the battery cell gradually rises to a temperature range capable of discharging normally outwards, and the battery module can supply power to electric equipment.

As an alternative solution of the battery module with the heating function, the heating assembly includes a heating film and a glass fiber board, and the heating film is attached to the glass fiber board.

As an optional technical scheme of the battery module with the heating function, the accommodating cavity is arranged as a closed cavity, so that the heat transfer efficiency of the battery cell in the accommodating cavity and the outside is reduced, and the heating efficiency of the battery cell is improved and the heat preservation effect is improved when the heating assembly works.

As an optional technical scheme of the battery module with the heating function, the battery cell assembly comprises a plurality of battery cells, gaps among the battery cells are filled with heat-conducting sealant, and the heat-conducting sealant is connected with or abutted against the nickel strap.

As an optional technical scheme of the battery module with the heating function, the heating component is attached to one side of the nickel strap, which is away from the battery cell.

As an optional technical scheme of the battery module with the heating function, the heating assemblies at the upper end and the lower end of the battery cell are symmetrically arranged.

As an optional technical scheme of the battery module with the heating function, the upper bracket and/or the lower bracket is/are provided with a plurality of positioning columns, the positioning columns are used for limiting the mounting positions of the battery cells, the heating assembly is provided with a plurality of abdication holes, and the positioning columns are correspondingly penetrated in the abdication holes one by one.

As an optional technical scheme of the battery module with the heating function, the battery module further comprises a printed circuit board unit, wherein the printed circuit board unit is electrically connected with the electric core and the heating component; and/or

The battery module further comprises a battery management system unit, and the battery management system unit is electrically connected with the electric core.

As an optional technical scheme of the battery module with the heating function, the battery module further comprises an inverter, and the inverter is electrically connected with the electric core.

As an optional technical scheme of the battery module with the heating function, the inverter is arranged below the lower bracket, and an insulating heat insulation pad is arranged between the inverter and the lower bracket.

The beneficial effects of the utility model are as follows:

the battery module with the heating function provided by the utility model is used for heating the battery core by arranging the heating component in the accommodating cavity where the battery core is positioned, so that the battery module can safely and reliably work under a low-temperature condition. When the battery module in the extremely low temperature environment needs to be charged, the charging power supply supplies power to the heating component, the heating component heats and transfers heat to the battery cell, so that the temperature of the battery cell gradually rises to a temperature range capable of being charged normally, and the charging power supply can charge the battery cell normally. When the battery module in the extremely low temperature environment needs to be discharged, the battery cell supplies power to the heating component, the heating component heats and transfers heat to the battery cell, so that the temperature of the battery cell gradually rises to a temperature range capable of discharging normally outwards, and the battery module can supply power to electric equipment.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following description will briefly explain the drawings needed in the description of the embodiments of the present utility model, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the contents of the embodiments of the present utility model and these drawings without inventive effort for those skilled in the art.

Fig. 1 is a schematic view of a battery module with a heating function according to the present utility model;

fig. 2 is a schematic diagram showing an exploded structure of a battery module with a heating function according to the present utility model;

fig. 3 is a schematic diagram showing an exploded structure of a battery module with a heating function according to the present utility model.

In the figure:

10. a cell assembly; 11. a battery cell; 12. an upper bracket; 13. a lower bracket; 14. a nickel strap; 15. positioning columns; 16. a support column; 20. a heating assembly; 21. a relief hole; 30. a printed circuit board unit; 31. a photovoltaic charging module; 40. a battery management system unit; 50. an inverter; 51. a bottom bracket; 60. an insulating heat insulating mat; 70. a housing.

Detailed Description

In order to make the technical problems solved by the present utility model, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. 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 fall within the scope of the utility model.

The embodiment provides a battery module with a heating function, which can store electric energy and output electric power to electric equipment, as shown in fig. 1-3, the battery module comprises a battery cell assembly 10, a heating assembly 20 and a shell 70, wherein the battery cell assembly 10 comprises a battery cell 11, an upper bracket 12 and a lower bracket 13, the upper bracket 12 and the lower bracket 13 are enclosed to form a containing cavity, the upper bracket 12 and the upper bracket 12 are made of insulating materials, the battery cell 11 is arranged in the containing cavity, and nickel straps 14 are respectively arranged at two ends of the battery cell 11; the heating component 20 is arranged in the accommodating cavity, the battery cell 11 is electrically connected with the heating component 20 and can supply power for the heating component 20, the heating component 20 is connected with or abutted against the nickel strap 14, the heating component 20 transfers heat to the battery cell 11 through the nickel strap 14, and the battery cell component 10 is arranged in the shell 70.

Specifically, the battery module with heating function provided in this embodiment locates the heating assembly 20 in the accommodating cavity where the electric core 11 is located, and is used for heating the electric core 11, so that the battery module can safely and reliably work under the low temperature condition. When the battery module in the extremely low temperature environment needs to be charged, the charging power supply supplies power to the heating component 20, the heating component 20 heats and transfers heat to the battery cell 11, so that the temperature of the battery cell 11 gradually rises to a temperature range where the battery cell 11 can be charged normally, and the charging power supply can charge the battery cell 11 normally. When the battery module in the extremely low temperature environment needs to be discharged, the battery cell 11 supplies power to the heating component 20, the heating component 20 heats and transfers heat to the battery cell 11, so that the temperature of the battery cell 11 gradually rises to a temperature range in which the battery module can be discharged normally outwards, and the battery module can supply power to electric equipment.

Optionally, the heating assembly 20 includes a heating film and a glass fiber board, the heating film being attached to the glass fiber board. Specifically, the heating film is electrically connected with an external charging power supply and/or the battery cell 11 through a wire, and the heating film is attached to one surface of the glass fiber board, which is close to the nickel strap 14, and the glass fiber board has excellent insulation and heat insulation characteristics, so that electric leakage and heat transfer outwards can be avoided.

Optionally, the accommodating cavity is configured as a closed cavity, so as to reduce heat transfer efficiency between the battery cell 11 in the accommodating cavity and the outside, thereby improving heating efficiency of the battery cell 11 and improving heat insulation effect when the heating assembly 20 works.

Further, the battery cell assembly 10 includes a plurality of battery cells 11, and gaps between the battery cells 11 are filled with a heat-conducting sealant, and the heat-conducting sealant is connected or abutted with the nickel strap 14. Specifically, the arrangement of the heat-conducting sealant can fix the position of the battery cell 11 in the accommodating cavity on one hand, and can improve the heat transfer efficiency between the heating assembly 20 and the battery cell 11 and further improve the temperature rising efficiency of the battery cell 11 on the other hand; and when the heating films at the upper end and the lower end are heated simultaneously, the sealant around the battery cell 11 can be heated while the upper electrode part and the lower electrode part of the battery cell 11 are heated, so that the whole battery cell 11 is heated uniformly, and the safety of the battery module is greatly improved. In this embodiment, the thermally conductive sealant is bonded to the nickel strap 14.

Optionally, the heating component 20 is adhered to the nickel strap 14, specifically, the heating component 20 is attached to a side of the nickel strap 14 away from the battery cell 11, the heating film directly transfers heat to the nickel strap 14, the nickel straps 14 at two ends of the battery cell 11 are attached to the battery cell 11, and the heat acquired by the nickel strap 14 can be directly transferred to the battery cell 11.

Optionally, the heating assemblies 20 at the upper and lower ends of the battery cell 11 are symmetrically arranged.

Optionally, a plurality of positioning columns 15 are disposed on the upper support 12 and/or the lower support 13, the positioning columns 15 are used for limiting the mounting positions of the battery cells 11, a plurality of abdication holes 21 are disposed on the heating assembly 20, and the positioning columns 15 are correspondingly arranged in the abdication holes 21 in a penetrating manner. In this embodiment, a plurality of positioning columns 15 are disposed on the upper support 12 and the lower support 13, and the heating assemblies 20 at the upper and lower ends of the electric core 11 are provided with yielding holes 21, that is, the heating film and the glass fiber board are provided with yielding holes 21.

Preferably, the heating film is made of an insulating material, and specifically, the heating film may be a silica gel heating film, a polyimide heating film, an epoxy plate heating film, or the like.

Optionally, the battery module further includes a printed circuit board unit 30, and the printed circuit board unit 30 is electrically connected with the battery cell 11 and the heating assembly 20. Further, a photovoltaic charging module 31 is disposed on the printed circuit board unit 30 for connecting an external photovoltaic power source and enabling the photovoltaic power source to supply power to the electric core 11 and the heating assembly 20.

In this embodiment, the printed circuit board unit 30 is disposed above the upper bracket 12, the upper bracket 12 is provided with a plurality of support columns 16, the lower ends of the support columns 16 are fixed on the upper bracket 12, and the upper ends of the support columns 16 are connected with the printed circuit board unit 30 to provide support.

Further, the battery module further comprises a battery management system unit 40, the battery management system unit 40 is arranged in a gap between the printed circuit board unit 30 and the upper bracket 12, the battery management system unit 40 is electrically connected with the battery core 11 and the printed circuit board unit 30, the battery management system unit 40 is used for intelligently managing and maintaining each unit in the battery module, the phenomenon of overcharge and overdischarge of the battery module is prevented, the service life of the battery module is prolonged, and the state of the battery module is monitored.

Optionally, the battery module further includes an inverter 50, where the inverter 50 is electrically connected to the battery cell 11 and is used for converting the output current. Specifically, the inverter 50 is provided below the lower bracket 13, and is connected to the lower bracket 13 through a bottom bracket 51.

Preferably, an insulating heat insulation pad 60 is provided between the inverter 50 and the lower bracket 13 to further improve the insulation performance and heat insulation performance between the battery cell assembly 10 and the inverter 50.

Note that the above is only a preferred embodiment of the present utility model and the technical principle applied. It will be understood by those skilled in the art that the present utility model is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, while the utility model has been described in connection with the above embodiments, the utility model is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the utility model, which is set forth in the following claims.

Claims

1. Battery module with heating function, its characterized in that includes:

the battery cell assembly (10) comprises a battery cell (11), an upper bracket (12) and a lower bracket (13), wherein a containing cavity is formed by surrounding the upper bracket (12) and the lower bracket (13), the battery cell (11) is arranged in the containing cavity, and nickel belts (14) are respectively arranged at two ends of the battery cell (11);

the heating component (20) is arranged in the accommodating cavity, the heating component (20) is connected with or abutted against the nickel strap (14), and the heating component (20) transmits heat to the battery cell (11) through the nickel strap (14).

2. The battery module with a heating function according to claim 1, wherein the heating assembly (20) includes a heating film and a glass fiber board, the heating film being attached to the glass fiber board.

3. The battery module with a heating function according to claim 1, wherein the accommodating chamber is provided as a closed chamber.

4. The battery module with the heating function according to claim 3, wherein the cell assembly (10) comprises a plurality of the cells (11), gaps among the plurality of the cells (11) are filled with heat-conducting sealant, and the heat-conducting sealant is connected with or abutted against the nickel strap (14).

5. The battery module with the heating function according to claim 1, characterized in that the heating assembly (20) is attached to the side of the nickel strap (14) facing away from the electric core (11).

6. The battery module with the heating function according to claim 5, wherein the heating assemblies (20) at the upper and lower ends of the battery cell (11) are symmetrically disposed with each other.

7. The battery module with the heating function according to claim 1, wherein a plurality of positioning columns (15) are arranged on the upper support (12) and/or the lower support (13), the positioning columns (15) are used for limiting the installation position of the battery cell (11), a plurality of yielding holes (21) are arranged on the heating assembly (20), and the positioning columns (15) penetrate through the yielding holes (21) in a one-to-one correspondence manner.

8. The battery module with a heating function according to any one of claims 1 to 7, further comprising a printed circuit board unit (30), the printed circuit board unit (30) being electrically connected with the electric core (11) and the heating assembly (20); and/or

The battery module further comprises a battery management system unit (40), and the battery management system unit (40) is electrically connected with the electric core (11).

9. The battery module with a heating function according to any one of claims 1 to 7, further comprising an inverter (50), the inverter (50) being electrically connected with the electric core (11).

10. The battery module with the heating function according to claim 9, wherein the inverter (50) is provided below the lower bracket (13), and an insulating heat insulation pad (60) is provided between the inverter (50) and the lower bracket (13).