Thermal insulation battery box

By welding a double-layer structure inside the battery box and filling it with insulation cotton, the problems of easy detachment of the external insulation cotton and complicated processes were solved, thus achieving the effects of extending the insulation time and simplifying production.

CN223941860UActive Publication Date: 2026-02-24GUANGDONG YIWEI NEW ENERGY AUTOMOBILE CO LTD
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Patent Information

Application Number
CN202423292343.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2026-02-24
Estimated Expiration
2034-12-30

AI Technical Summary

Technical Problem

In the existing technology, the insulation cotton wrapped around the outside of the battery box is easy to fall off, which affects the insulation effect, and the process of adding insulation cotton is complicated.

Method used

The battery box adopts a double-layer structure. The first and second boxes are fixed by welding, and insulation cotton is filled between them to form a filling area, which replaces the method of wrapping the outside with insulation cotton.

Benefits of technology

It extends the insulation time, simplifies the production process, and avoids damage caused by insulation cotton falling off.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a heat preservation battery box. The heat preservation battery box comprises a first box body, a second box body and heat preservation cotton, the second box body is welded to the first box body, and a filling area is arranged between the second box body and the first box body; the heat preservation cotton is arranged in the filling area. According to the scheme provided by the invention, the heat preservation effect can be achieved without adding heat preservation cotton outside the battery box, so that the production process is simplified.
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Description

TECHNICAL FIELD

[0001] The utility model relates to battery technology field especially relates to a heat preservation battery box. BACKGROUND

[0002] In the related art, the heat preservation of the battery is usually wrapping the heat preservation cotton on the outside bottom of the battery box. However, the external heat preservation cotton can be scratched and thus fall off, thereby affecting the heat preservation effect. Meanwhile, the process of adding the heat preservation cotton on the outside of the battery box is also relatively complicated. SUMMARY

[0003] The utility model discloses a heat preservation battery box, which can achieve the heat preservation effect without adding the heat preservation cotton on the outside of the battery box, thereby simplifying the production process.

[0004] The utility model discloses a heat preservation battery box, which can achieve the heat preservation effect without adding the heat preservation cotton on the outside of the battery box, thereby simplifying the production process.

[0005] The utility model discloses a heat preservation battery box, which can achieve the heat preservation effect without adding the heat preservation cotton on the outside of the battery box, thereby simplifying the production process.

[0006] The height of the filling area is 4mm-8mm.

[0007] The thickness of the heat preservation cotton is 5mm-10mm.

[0008] The second box body is provided with a storage cavity, and the storage cavity is used for preventing the battery.

[0009] The surface area of the heat preservation cotton is greater than or equal to the surface area of the cavity bottom of the storage cavity.

[0010] The opening direction of the first box body is the same as the opening direction of the second box body.

[0011] The first box body is provided with a containing cavity, and the volume of the storage cavity is less than the volume of the containing cavity.

[0012] The first box body is provided with a first round corner part.

[0013] The second box body is provided with a second round corner part.

[0014] The utility model further includes a protruding block, which is arranged on the periphery of the first box body.

[0015] Compared with the prior art, the utility model has at least the following advantages:

[0016] 1. The battery box of the present application is a double-layer structure, the first box body and the second box body are fixed by welding, and heat preservation cotton is filled between the first box body and the second box body, so that the traditional heat preservation cotton wrapped on the outside bottom of the battery box is replaced, the problem of damage caused by scratching is avoided, and the heat preservation time is prolonged.

[0017] 2. The first box body and the second box body of the present application can be directly fixed by welding, and the operation process is very simple. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced as follows.

[0019] Figure 1 It is a structure diagram of the heat preservation battery box in an embodiment of the present application.

[0020] Figure 2 It is an exploded view of the heat preservation battery box in an embodiment of the present application.

[0021] Figure 3 It is a structure diagram of another embodiment of the heat preservation battery box in an embodiment of the present application. DETAILED DESCRIPTION

[0022] The embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0023] It should be understood that although the terms "first", "second", "third" and the like are used to describe various information in the present application, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as the first information without departing from the scope of the present application. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0024] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0025] In related technologies, battery insulation typically involves wrapping the bottom of the battery casing with insulating cotton. However, this outer insulating cotton can be scratched and detached, affecting the insulation effect. Furthermore, adding insulating cotton to the outside of the battery casing is a relatively complex process.

[0026] To address the aforementioned issues, this application provides an insulated battery box that achieves insulation without requiring additional insulation cotton on the outside of the battery box, thus simplifying the manufacturing process.

[0027] The technical solutions of the embodiments of this application are described in detail below with reference to the accompanying drawings.

[0028] Please see Figure 1 and Figure 2 An insulated battery box includes: a first box body 100, a second box body 200, and insulation cotton 300. The second box body 200 is welded to the first box body 100, and a filling area is provided between the second box body 200 and the first box body 100. The insulation cotton 300 is disposed in the filling area.

[0029] It should be noted that the insulation cotton 300 is first placed inside the first box 100, and then the second box 200 is placed inside the first box 100 and welded to the first box 100 by spot welding. The assembly is then complete, and the whole process is very simple. This method replaces the traditional method of wrapping the bottom of the battery box with insulation cotton, avoiding damage caused by scratches and extending the insulation time.

[0030] Preferably, the height of the filling area ranges from 4mm to 8mm.

[0031] Preferably, the thickness of the thermal insulation cotton 300 is in the range of 5mm to 10mm.

[0032] It should be noted that because the thermal insulation cotton 300 is elastic, its thickness will be greater than the height of the filling area.

[0033] Please see Figure 2 In one embodiment, the second housing 200 has a storage cavity 210 for storing batteries.

[0034] It should be noted that, in order to ensure that each battery can be kept warm, the surface area of ​​the insulation cotton 300 is greater than or equal to the surface area of ​​the bottom of the storage cavity 210.

[0035] Please see Figure 2 In one embodiment, the opening direction of the first box 100 is the same as the opening direction of the second box 200.

[0036] It is understandable that the opening direction of the first box 100 is the same as the opening direction of the second box 200, which can ensure that the second box 200 can be placed into the first box 100.

[0037] Please see Figure 2 In one embodiment, the first box 100 has a receiving cavity 110, and the volume of the storage cavity 210 is smaller than the volume of the receiving cavity 110.

[0038] It is understandable that the second box 200 needs to be welded into the receiving cavity on the first box 100, so the volume of the storage cavity 210 needs to be smaller than the volume of the receiving cavity 110.

[0039] Please see Figure 2 In one embodiment, the first housing 100 is provided with a first rounded corner portion 120. Specifically, the second housing 200 is provided with a second rounded corner portion 220.

[0040] It should be noted that by providing a first rounded corner portion 120 on the first housing 100, the corners of the first housing 100 become smoother and free of sharp edges, thus preventing scratches during handling. Furthermore, by providing a second rounded corner portion 220 on the second housing 200, the second rounded corner portion 220 matches the first rounded corner portion 120, ensuring a tighter fit between the first housing 100 and the second housing 200 after welding.

[0041] Please see Figure 1 In one embodiment, an insulated battery box further includes a protrusion 400 disposed on the periphery of the first box body 100.

[0042] It should be noted that the protrusion 400 is used to fasten to the top cover of the battery box.

[0043] The solution of this application has been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of each embodiment have different focuses; for parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments. Those skilled in the art should also understand that the actions and modules involved in the specification are not necessarily essential to this application. Furthermore, it is understood that the steps in the method of this application embodiment can be adjusted, combined, and deleted according to actual needs, and the modules in the device of this application embodiment can be combined, divided, and deleted according to actual needs.

[0044] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A thermally insulated battery box, characterized in that, include: First box; The second box is welded to the first box, and a filling area is provided between the second box and the first box; Thermal insulation cotton is disposed within the filling area.

2. The insulated battery box according to claim 1, characterized in that, The height range of the filling area is 4mm to 8mm.

3. The insulated battery box according to claim 1 or 2, characterized in that, The thickness of the insulation cotton ranges from 5mm to 10mm.

4. The insulated battery box according to claim 1, characterized in that, The second housing has a storage cavity for storing batteries.

5. The insulated battery box according to claim 4, characterized in that, The surface area of ​​the insulation cotton is greater than or equal to the surface area of ​​the bottom of the storage cavity.

6. The insulated battery box according to claim 2 or 4, characterized in that, The opening direction of the first box is the same as the opening direction of the second box.

7. The insulated battery box according to claim 5, characterized in that, The first box has a receiving cavity, and the volume of the storage cavity is smaller than the volume of the receiving cavity.

8. The insulated battery box according to claim 1, characterized in that, The first box body is provided with a first rounded corner.

9. The insulated battery box according to claim 1, characterized in that, The second box body is provided with a second rounded corner.

10. The insulated battery box according to claim 1, characterized in that, It also includes a bump, which is disposed on the periphery of the first housing.