Soft package module structure with heating function

Abstract

The utility model discloses a soft package module structure with heating function, including electric core group and the PCB subassembly of electric core group upper end setting, the two end parts of electric core group are sequentially provided with end part heat preservation board and end part nonmetallic board from inside to outside, the two side parts of electric core group are sequentially provided with PI heating film, side part heat preservation board and side part nonmetallic board from inside to outside, this soft package module structure with heating function can improve heating efficiency, has the characteristics of lightweight simultaneously, meets the design requirement, satisfies the production need.

Description

Technical Field

[0001] This utility model relates to the field of soft-pack battery technology, specifically a soft-pack module structure with heating function. Background Technology

[0002] Currently, there are two types of soft-pack module structures with heating functions. One type has a heating film sandwiched between each cell, and the overall module structure is in the form of an end plate and packing strap. The other type places the heating film on the side of the module (i.e., the narrow side of the cell), and the overall module structure is in the form of an end plate and side plate. The first type of structure attaches the heating film to the large surface of the cell and heats it perpendicular to the cell's heat conduction path, resulting in a reduced heating rate and a large number of heating films, which is not economical. The second type attaches the heating film to the side of the module, parallel to the cell's heat conduction path, which optimizes the heating rate and reduces the number of heating films to two. However, for lightweight soft-pack module designs, the end plate and side plate module structure is too bulky and reduces energy conversion efficiency. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a soft-pack module structure with heating function, which can improve heating efficiency and has the characteristics of lightweight, meet the design requirements, and effectively solve the problems in the background technology.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a soft-pack module structure with heating function, including a battery cell assembly and a PCB assembly disposed on the upper end of the battery cell assembly. The two ends of the battery cell assembly are provided with an end insulation plate and an end non-metallic plate from the inside to the outside. The two sides of the battery cell assembly are provided with a PI heating film, a side insulation plate and a side non-metallic plate from the inside to the outside.

[0005] As a preferred embodiment of this utility model, the ends of the battery cell assembly, the end insulation plate, and the end non-metallic plate are connected by adhesive bonding, and the sides of the battery cell assembly, the PI heating film, the side insulation plate, and the side non-metallic plate are also connected by adhesive bonding.

[0006] As a preferred embodiment of this invention, thermally conductive adhesive is applied between the side of the battery cell assembly and the PI heating film.

[0007] As a preferred embodiment of this utility model, the outer surfaces of the end non-metallic plate and the side non-metallic plate are fixed by wrapping with fiber tape.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: The soft-pack module structure with heating function uses non-metallic materials to replace the original metal side plates as the support for the heating film, which can reduce the weight of the overall soft-pack module; heat insulation materials are provided on the outside of the battery cell assembly and the outside of the PI heating film to prevent heat loss and improve the heating effect; the shape of the battery cell assembly is fixed by wrapping and fixing it with fiber tape on the outside of the soft-pack module, while avoiding the phenomenon of dry burning caused by no load on the PI heating film. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model.

[0010] In the diagram: 1. End non-metallic plate, 2. End insulation plate, 3. PI heating film, 4. Side insulation plate, 5. Side non-metallic plate, 6. PCB assembly, 7. Battery cell assembly. Detailed Implementation

[0011] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments (for ease of description and understanding, hereinafter referred to as...). Figure 1 (The above is described above). Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0012] Please see Figure 1 This utility model provides a technical solution: a soft-pack module structure with heating function, including a battery cell assembly 7 and a PCB assembly 6 disposed on the upper end of the battery cell assembly. The battery cell assembly 7 is composed of multiple parallel battery cells. The two ends of the battery cell assembly 7 are provided with an end insulation plate 2 and an end non-metallic plate 1 from the inside to the outside. The two sides of the battery cell assembly 7 are provided with a PI heating film 3, a side insulation plate 4 and a side non-metallic plate 5 from the inside to the outside. All the above components are connected by adhesive. The end non-metallic plate 1 and the side non-metallic plate 5 replace the metal plate of the original soft-pack module to meet the requirements of lightweight design. The PI heating film 3 is disposed on the narrow edge of the battery cell to improve the heating rate. At the same time, the addition of the end insulation plate 2 and the side insulation plate 4 prevents heat loss from being too fast during the heating process and improves the heating effect.

[0013] To further improve the heating efficiency of the soft-pack module, thermally conductive adhesive is applied between the side of the battery cell assembly 7 and the PI heating film 3.

[0014] In order to fix the shape of the entire soft-pack module, the outer surfaces of the end non-metallic plate 1 and the side non-metallic plate 5 are fixed by wrapping with fiber tape.

[0015] In use: the two large ends of the battery cell group 7 in the soft-pack module are connected to the end insulation plate 2 by adhesive, and one side of the end insulation plate 2 is connected to the end non-metallic plate 1 by adhesive; the two narrow sides of the battery cell group 7 in the soft-pack module are connected to the PI heating film 3 by adhesive, one side of the PI heating film 3 is bonded to the side insulation plate 4, one side of the side insulation plate 4 is bonded to the side non-metallic plate 5, and finally fixed by wrapping with fiber tape.

[0016] The parts of the utility model not described in detail are prior art. Although embodiments of the utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the utility model. The scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A soft-pack module structure with heating function, comprising a battery cell assembly (7) and a PCB assembly (6) disposed on the upper end of the battery cell assembly, characterized in that: The two ends of the battery cell assembly (7) are provided with an end insulation plate (2) and an end non-metallic plate (1) from the inside to the outside. The two sides of the battery cell assembly (7) are provided with a PI heating film (3), a side insulation plate (4) and a side non-metallic plate (5) from the inside to the outside.

2. The soft-pack module structure with heating function according to claim 1, characterized in that: The end of the battery cell assembly (7), the end insulation plate (2), and the end non-metallic plate (1) are connected by adhesive. The side of the battery cell assembly (7), the PI heating film (3), the side insulation plate (4), and the side non-metallic plate (5) are also connected by adhesive.

3. The soft-pack module structure with heating function according to claim 1, characterized in that: Thermally conductive adhesive is applied between the side of the battery cell assembly (7) and the PI heating film (3).

4. The soft-pack module structure with heating function according to claim 1, characterized in that: The outer surfaces of the end non-metallic plate (1) and the side non-metallic plate (5) are fixed by wrapping with fiber tape.

Images