Heating type heat insulation pad

Abstract

The utility model discloses a heating type heat insulation pad. The heating type heat insulation pad comprises a buffer frame, two hot melting films, a bonding layer and a heating film body, a containing cavity penetrating through the surface of the buffer frame is formed in the buffer frame, and a heat insulation body is arranged in the containing cavity; the two hot melt films are respectively attached to the two surfaces of the buffer frame and seal the accommodating cavity; the bonding layer is arranged on a hot melt film; and the heating film body is arranged on the bonding layer. The bonding layer is arranged on the hot melting film, the heating film body is arranged on the bonding layer, and when the heat insulation pad is used, the heating film body is in contact with the side surface of the battery cell, so that compared with the traditional scheme that the heating film body is in contact with the bottom surface of the battery cell, the contact area of the heating film body and the side surface of the battery cell is far larger, the heating area is effectively increased, and the heating efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of thermal insulation pads, in particular to a heating type thermal insulation pad. Background Art

[0002] Lithium-ion batteries, with their high operating voltage, high energy density, wide operating temperature range, long cycle life, no memory effect, and environmental friendliness, have become a leading choice for green batteries in the 21st century. They are widely used in power batteries for vehicles and electric bicycles, energy storage for power grids, industrial energy storage, home energy storage, and communications, and in the 3C digital sector, including smartphones, laptops, smart wearable devices, and mobile power supplies. With socioeconomic development and improved living standards, new energy vehicles have become a popular and emerging mode of transportation, capturing an increasing market share. New energy vehicles offer numerous advantages, including fuel efficiency, reduced emissions, environmental protection, low noise levels, and low operating costs.

[0003] However, lithium batteries have a significant drawback: their discharge efficiency decreases significantly in low-temperature environments. To ensure that lithium batteries maintain relatively good power generation efficiency in low-temperature environments, most manufacturers choose to install heating films within the lithium battery module to provide heating for the battery cells. However, existing heating films in lithium battery modules are mostly located separately at the bottom of the battery cell, resulting in a small contact area and low heating efficiency. Therefore, it is necessary to propose a new solution to improve this problem. Utility Model Content

[0004] In view of this, the present invention aims to address the deficiencies in the prior art, and its main purpose is to provide a heating insulation pad that can effectively solve the problem of small contact area between the heating film and the battery cell in the existing lithium battery module, small heating area, and low heating efficiency.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A heating-type thermal insulation pad includes a buffer frame, two hot-melt films, an adhesive layer, and a heating film body; the buffer frame is provided with a receiving cavity penetrating the surface of the buffer frame, and the heat-insulating body is arranged in the receiving cavity; the two hot-melt films are respectively adhered to the two surfaces of the buffer frame and seal the receiving cavity; the adhesive layer is arranged on one hot-melt film; and the heating film body is arranged on the adhesive layer.

[0007] As a preferred solution, the buffer frame is made of silicone material.

[0008] As a preferred solution, the hot melt film is a mica hot melt film, which can ensure that the hot melt film will not be melted by the heat generated by heating the film body.

[0009] As a preferred solution, the adhesive layer is made of double-sided tape.

[0010] As a preferred solution, the heat-insulating body is made of aerogel material. The heat-insulating body made of aerogel material can ensure that the heat on the back of the heating film body will not be transferred to unnecessary places.

[0011] As a preferred solution, the heating film body has a wiring terminal, which extends outward from the buffer frame.

[0012] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solution that:

[0013] By setting an adhesive layer on a hot-melt film and a heating film body on the adhesive layer, when the thermal insulation pad is used, the heating film body contacts the side of the battery cell. Compared with the traditional solution in which the heating film body contacts the bottom of the battery cell, the contact area between the heating film body and the side of the battery cell is much larger than the former, which effectively increases the heating area and improves the heating efficiency.

[0014] In order to more clearly illustrate the structural features and effects of the present invention, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments: BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of an assembly perspective view of a preferred embodiment of the present utility model;

[0016] Figure 2 This is an exploded view of a preferred embodiment of the present utility model;

[0017] Figure 3 This is a cross-sectional view of a preferred embodiment of the present invention

[0018] Figure 4 yes Figure 3 A partial enlarged view of .

[0019] Description of the accompanying drawings:

[0020] 10. Buffer frame 11. Accommodating cavity

[0021] 20. Hot melt film 30. Adhesive layer

[0022] 40. Heating film 41. Terminal

[0023] 50. Thermal insulation body. DETAILED DESCRIPTION

[0024] Please refer to Figures 1 to 4As shown, it shows the specific structure of a preferred embodiment of the present invention, including a buffer frame 10, two hot melt films 20, an adhesive layer 30 and a heating film body 40.

[0025] The buffer frame 10 is provided with a accommodating cavity 11 which passes through the surface of the buffer frame 10, and a heat-insulating body 50 is arranged in the accommodating cavity 11; in this embodiment, the buffer frame 10 is made of silicone material, and the heat-insulating body 50 is made of aerogel material. The heat-insulating body 50 made of aerogel material can ensure that the heat on the back of the heating film body 40 will not be transferred to unnecessary places.

[0026] The two hot melt films 20 are respectively attached to the two surfaces of the buffer frame 10 and seal the accommodating cavity 11; in this embodiment, the hot melt films 20 are mica hot melt films, which can ensure that the hot melt films 20 will not be melted by the heat generated by the heated film body 40.

[0027] The adhesive layer 30 is disposed on a hot melt film 20 . In this embodiment, the adhesive layer 30 is made of double-sided tape.

[0028] The heating film 40 is disposed on the adhesive layer 30 . The heating film 40 has a connection terminal 41 . The connection terminal 41 extends outward from the buffer frame 10 .

[0029] The method of using this embodiment is described in detail as follows:

[0030] First, the thermal insulation pad is clamped between the two battery cells, and the heating film body 40 is in contact with the side of the battery cell, so that the heating film body 40 can heat the battery cell over a large area. The presence of the thermal insulation body 50 can make the heat generated by the heating film body 40 act only on the aforementioned battery cell, and the heat will not be transferred to the adjacent battery cell through the thermal insulation body 50.

[0031] The design focus of this utility model is:

[0032] By setting an adhesive layer on a hot-melt film and a heating film body on the adhesive layer, when the thermal insulation pad is used, the heating film body contacts the side of the battery cell. Compared with the traditional solution in which the heating film body contacts the bottom of the battery cell, the contact area between the heating film body and the side of the battery cell is much larger than the former, which effectively increases the heating area and improves the heating efficiency.

[0033] The above description is merely a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A heating insulation pad, characterized by: The invention comprises a buffer frame, two hot-melt films, an adhesive layer and a heating film body; the buffer frame is provided with a receiving cavity which penetrates the surface of the buffer frame, and the receiving cavity is provided with a heat-insulating body; the two hot-melt films are respectively attached to the two surfaces of the buffer frame and seal the receiving cavity; the adhesive layer is provided on the hot-melt film; and the heating film body is provided on the adhesive layer.

2. The heating insulation pad according to claim 1, characterized in that: The buffer frame is made of silicone material.

3. The heating insulation pad according to claim 1, characterized in that: The hot melt film is a mica hot melt film.

4. The heating insulation pad according to claim 1, characterized in that: The adhesive layer is made of double-sided tape.

5. The heating insulation pad according to claim 1, characterized in that: The heat insulation body is made of aerogel material.

6. The heating insulation pad according to claim 1, characterized in that: The heating film body has a connection terminal, and the connection terminal extends outward from the buffer frame.

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