Battery heating device equipped with uv light curing film

Abstract

The utility model discloses a battery heating device equipped with uv light curing films, which comprises a heating sheet, a first uv light curing film and a second uv light curing film, the first uv light curing film is arranged above a battery, the heating sheet is arranged above the first uv light curing film, and the second uv light curing film is arranged above the heating sheet and wraps the heating sheet. The first uv light curing film, the heating piece and the second uv light curing film are sequentially arranged in a stacked mode. According to the utility model, the heating sheet, the first UV light curing film and the second UV light curing film are laminated, so that the performance of the battery in a low-temperature environment can be effectively improved, and the stability and the safety of the whole structure can be ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery technology field especially relates to a battery heating device with uv light solid film. BACKGROUND

[0002] Low temperature environment will have adverse effects on the performance of square shell lithium ion battery for automobile, resulting in battery capacity decline, battery internal resistance increases significantly, thereby affecting the power output and endurance of electric vehicle. Therefore, it is particularly important to improve the working temperature of the battery to enhance its performance.

[0003] However, the commonly used battery heating sheet for vehicle is usually installed on the power battery pack and covers a layer of PET "blue film" cell or module. On the one hand, the PSA adhesive bonding performance of "blue film" is limited, on the other hand, the PET substrate of "blue film" belongs to low surface energy material. When the battery pack is impacted by external force, the "blue film" may drive the heating sheet to peel off directly from the cell shell, thereby causing potential safety hazards.

[0004] Therefore, there is an urgent need for a battery heating device with uv light solid film to solve the above problems. SUMMARY

[0005] Therefore, the utility model provides a battery heating device with uv light solid film, which significantly improves the safety and reliability of the battery in low temperature environment, thereby improving the overall performance of electric vehicle. The technical scheme of the utility model is as follows:

[0006] The utility model provides a battery heating device with uv light solid film, including heating sheet, first uv light solid film and second uv light solid film, and specifically as follows:

[0007] The heating sheet is used for heating the battery to improve the working performance of the battery in low temperature environment.

[0008] The first uv light solid film is used for connecting the heating sheet and enhancing the stability of the heating sheet.

[0009] The second uv light solid film is used for covering the heating sheet and enhancing the stability of the heating sheet.

[0010] Specifically, the first uv light solid film is arranged around the battery and covers the battery, the heating sheet is arranged above the first uv light solid film, the second uv light solid film is arranged above the heating sheet and covers the heating sheet, and the first uv light solid film, the heating sheet and the second uv light solid film are sequentially stacked.

[0011] Optionally, the heating sheet is made of brass.

[0012] Specifically, the heating sheet is provided with a lead wire for providing power to the heating sheet.

[0013] Specifically, the second UV curing film is provided with a lead wire extension hole for extending the lead wire of the heating sheet.

[0014] Optionally, the thickness of the first UV curing film ranges from 30μm to 300μm.

[0015] Optionally, the thickness of the second UV curing film ranges from 30μm to 300μm.

[0016] Optionally, the thickness of the heating sheet ranges from 80μm to 120μm.

[0017] Specifically, there is a gap between the heating sheet and the first UV curing film and the second UV curing film, and the gap is filled with an insulating material.

[0018] The advantages of the present utility model are as follows:

[0019] 1. The structure of "first UV curing insulating material-heating sheet-second UV curing insulating material" is adopted, which will not produce air gap compared with traditional "blue film", has better adhesion and is not easy to break. This design simplifies the structural connection between the battery cell and the pack, especially in the CTP (Cell to Pack) era, which significantly reduces the development difficulty, helps to improve the production automation level and improves the production efficiency.

[0020] 2. The UV curing film in the present utility model has excellent insulation performance and can remain stable under harsh environmental conditions, such as corrosion resistance, moisture resistance, heat resistance, and high and low temperature impact. Even under extreme temperature changes, the performance parameters remain excellent, ensuring the safety and reliability of the battery under various environments.

[0021] 3. The UV curing film in the present utility model helps the battery thermal management system to operate more efficiently, effectively avoiding the problem of thermal runaway caused by battery abuse. At the same time, the insulating material structure of the UV curing film can prevent the insulating film from driving the heating sheet to fall off from the battery cell shell, reducing the safety hazard. Through this improvement, the safety and stability of the battery during use are further ensured. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only one embodiment of the present utility model, and those skilled in the art can obtain other drawings according to these drawings without creating any creative labor.

[0023] Wherein the same parts are indicated by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the words "bottom" and "top", "inner" and "outer" refer to the directions towards or away from the geometric center of a particular part, respectively.

[0024] Fig. 1 It is an overall structural view of the embodiment of the present application.

[0025] Fig. 2 It is a sectional view of the embodiment of the present application.

[0026] In the above drawings, the meanings of the reference numerals are as follows:

[0027] 1. First uv light solid film;

[0028] 2. Heating sheet;

[0029] 3. Second uv light solid film;

[0030] 4. Wire;

[0031] 5. Wire extension hole. DETAILED DESCRIPTION

[0032] The technical solutions of the present application will be described clearly and completely below in combination with the embodiments of the present application and the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0033] Unless otherwise defined, all technical and scientific terms used in the present application have the same meanings as those commonly understood by those skilled in the art to which the present application belongs; the terms used in the specific embodiments are only for the purpose of describing the specific embodiments, not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above drawing description are intended to cover non-exclusive inclusion.

[0034] In the description of the specific embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified.

[0035] The term "embodiment" mentioned in the present utility model means that the specific features, structures or characteristics described in combination with the embodiment can be included in at least one embodiment of the present utility model. The phrase appears in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is not mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in the present utility model can be combined with other embodiments.

[0036] In the description of the embodiments of the present utility model, the term "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A existing alone, A and B existing together, and B existing alone. In addition, the character " / " in the present utility model generally represents that the front and rear associated objects are in an "or" relationship.

[0037] Throughout the present utility model, numerical values represent approximate measurements or limits of a range to encompass minor deviations from the given values and embodiments having about the mentioned values and embodiments having the mentioned exact values. In addition to the working examples provided at the end of the specific embodiments, all numerical values of the parameters such as quantities or conditions in the specification should be understood as being modified by the term "about" in all cases, regardless of whether "about" is actually present before the numerical value. "About" indicates that the stated numerical value allows for some minor inaccuracy from the exact value of the stated value; approximately or reasonably close to the stated value; almost. If the inaccuracy provided by "about" is not otherwise understood in the art in this ordinary sense, "about" as used in the present utility model at least indicates the variation that can be produced by ordinary methods of measuring and using such parameters. For example, "about" can include a variation of less than or equal to 5%, optionally less than or equal to 4%, optionally less than or equal to 3%, optionally less than or equal to 2%, optionally less than or equal to 1%, optionally less than or equal to 0.5%, and in certain aspects, optionally less than or equal to 0.1%.

[0038] In addition, the disclosure of a range includes all values within the range and further divided ranges, including the endpoints and subranges given for these ranges.

[0039] The embodiments of the present utility model will be described more specifically below by way of examples. It should be noted that the embodiments of the present utility model are not limited to only these examples.

[0040] Low-temperature environment can adversely affect the performance of the square lithium-ion battery for automobile, resulting in battery capacity decline, battery resistance significantly increased, thereby affecting the power output and endurance of electric vehicles. Therefore, it is particularly important to improve the working temperature of the battery to enhance its performance.

[0041] However, the commonly used battery heating sheet for vehicles at present is usually installed on the power battery pack and covers the cell or module with a layer of PET "blue film". On the one hand, the PSA adhesive performance of the "blue film" is limited, and on the other hand, the PET substrate of the "blue film" belongs to a low surface energy material. When the battery pack is impacted by external force, the "blue film" may drive the heating sheet to peel off directly from the cell shell, thereby causing potential safety hazards.

[0042] Therefore, the application discloses a battery heating device equipped with a uv light curing film to solve the above problems.

[0043] In a specific embodiment, as shown in the accompanying drawings, a battery heating device equipped with a uv light curing film includes a heating sheet 2, a first uv light curing film 1 and a second uv light curing film 3, which are specifically as follows: Figs. 1-2 The heating sheet 2 is used to heat the battery and improve the working performance of the battery in a low temperature environment.

[0044] The first uv light curing film 1 is used to connect the heating sheet 2 and enhance the stability of the heating sheet 2.

[0045] The second uv light curing film 3 is used to cover the heating sheet 2 and enhance the stability of the heating sheet 2.

[0046] Specifically, the first uv light curing film 1 is arranged around the battery to replace the blue film to cover the battery, the heating sheet 2 is arranged above the first uv light curing film 1, the second uv light curing film 3 is arranged above the heating sheet 2 and covers the heating sheet 2, and the first uv light curing film 1, the heating sheet 2 and the second uv light curing film 3 are sequentially stacked.

[0047] Optionally, the material of the heating sheet 2 is brass, which has good heat conductivity and mechanical strength to ensure efficient heating.

[0048] Specifically, the heating sheet 2 is provided with a wire 4 for providing power for the heating sheet 2, and the wire 4 is used to transmit current to the heating sheet 2 to realize the heating function.

[0049] Specifically, the second uv light curing film 3 is provided with a wire extension hole 5 for extending the wire 4 of the heating sheet 2 to ensure the stability and safety of the power connection.

[0050] Optionally, the thickness of the first uv light curing film 1 ranges from 30 μm to 300 μm.

[0051] In actual application, the thickness of the first uv light curing film 1 can be selected as 30 μm, 50 μm, 100 μm, 150 μm, 200 μm, 250 μm or 300 μm, which are only example values and are not limited.

[0052] In actual application, the thickness of the first uv light curing film 1 can be selected as 30 μm, 50 μm, 100 μm, 150 μm, 200 μm, 250 μm or 300 μm, which are only example values and are not limited.

[0053] Optionally, the thickness of the second uv light curing film 3 ranges from 30μm to 300μm.

[0054] In practical applications, the thickness of the second uv light curing film 3 can be selected as 30μm, 50μm, 100μm, 150μm, 200μm, 250μm, 300μm, which are only example values and are not limited.

[0055] Optionally, the thickness of the heating sheet 2 ranges from 80μm to 120μm.

[0056] In practical applications, the thickness of the heating sheet 2 can be selected as 80μm, 90μm, 100μm, 110μm, 120μm, which are only example values and are not limited.

[0057] Specifically, there are gaps between the heating sheet 2 and the first uv light curing film 1 and the second uv light curing film 3, which are filled with insulating materials. These gaps filled with insulating materials provide electrical isolation, prevent short circuits and heat conduction, and improve the safety and efficiency of the entire device.

[0058] By stacking the heating sheet 2, the first uv light curing film 1 and the second uv light curing film 3, the battery heating device not only effectively improves the performance of the battery in low temperature environment, but also ensures the stability and safety of the entire structure. The design of the wire 4 and the wire extension hole 5 ensures the reliability of power supply, and the use of insulating materials further improves the electrical safety performance of the equipment. The overall design simplifies the installation process, improves the production automation level, and enhances the durability and reliability of the equipment.

[0059] It should be noted that the above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A battery heating device equipped with a UV curing film, characterized in that, include: Heating elements are used to heat the battery and improve its performance in low-temperature environments. A first UV curing film is used to connect the heating element and enhance the stability of the heating element; The second UV curing film is used to coat the heating element and enhance its stability; The first UV curing film is disposed around the battery and covers the battery. The heating element is disposed above the first UV curing film. The second UV curing film is disposed above the heating element and covers the heating element. The first UV curing film, the heating element, and the second UV curing film are stacked sequentially.

2. The battery heating device equipped with a UV curing film according to claim 1, characterized in that, The heating element is made of brass.

3. A battery heating device equipped with a UV curing film according to claim 2, characterized in that, The heating element is provided with wires for providing power to the heating element.

4. A battery heating device equipped with a UV curing film according to claim 3, characterized in that, The second UV curing film is provided with a wire extension hole for the wire of the heating element to extend out.

5. A battery heating device equipped with a UV curing film according to claim 4, characterized in that, The thickness of the first UV curing film ranges from 30μm to 300μm.

6. A battery heating device equipped with a UV curing film according to claim 5, characterized in that, The thickness of the second UV curing film ranges from 30μm to 300μm.

7. A battery heating device equipped with a UV-curing film according to claim 6, characterized in that, The thickness of the heating element ranges from 80μm to 120μm.

8. A battery heating device equipped with a UV curing film according to claim 7, characterized in that, There are gaps between the heating element and the first UV curing film and the second UV curing film, and the gaps are filled with insulating material.

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