Upper cover device for enhancing sealing performance of battery box

By combining the upper cover made of plastic, rigid pressure plate and hanging lugs in the battery box upper cover device, the upper cover is prevented from deforming by using the extrusion effect, the problem of poor sealing of the battery box is solved and a higher sealing ability is achieved and structural strength, suitable for lightweight design.

CN222300787UActive Publication Date: 2025-01-03HOHHOT RUNYA SODIUM ELECTRIC TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202420667656.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-02
Publication Date
2025-01-03
Estimated Expiration
2034-04-02

AI Technical Summary

Technical Problem

Due to strength problems, the upper cover of the existing battery box is prone to deformation, resulting in poor sealing properties and cannot fit closely with the liquid-cooled plate, causing gaps and affecting the sealing properties of the battery box.

Method used

Design an upper cover device that enhances the sealing of the battery box. The upper cover body made of plastic is combined with a rigid pressure plate and a hanging lug. The pressure plate and the upper cover are fixed to the liquid-cooled plate through threaded fasteners, and the pressure plate is extruded by the pressure plate. It prevents the upper cover from deforming and realizes the lifting function of the battery box through hanging lugs. The press plate material can be made of steel plate, iron plate, aluminum plate or aluminum-magnesium alloy, and sealing strips are added to improve the sealing effect.

Benefits of technology

Effectively prevent the upper cover from being separated from the liquid-cooled plate, enhance the sealing of the battery box, meet the needs of lightweight and structural strength, and simplify the manufacturing process and reduce costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an upper cover device for enhancing the sealing performance of a battery box, which is used for sealing a battery pack on a liquid cooling plate of the battery box, and comprises an upper cover body, an outer edge is arranged on the periphery of the lower part of the upper cover body, and a first through hole is formed in the outer edge; the reinforcing device comprises a pressing plate and a lifting lug, the pressing cover is arranged on the outer edge, and a second through hole corresponding to the first through hole is formed in the pressing plate; the lifting lugs are used for lifting the battery box; and the threaded fastener penetrates through the first through hole and the second through hole and fixes the pressing plate and the upper cover body on the upper surface of the liquid cooling plate. By arranging the reinforcing device, the outer edge of the upper cover body can be extruded when the threaded fastener fixes the upper cover body, so that the outer edge cannot be deformed under the extrusion action of the liquid cooling plate and the pressing plate, and therefore, the upper cover can be tightly attached to the liquid cooling plate and cannot be completely deformed to be separated from the liquid cooling plate. The upper cover device can enhance the sealing performance of the battery box.
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Description

Technical Field

[0001] The utility model belongs to the technical field of energy storage batteries and relates to a battery box component, in particular to an upper cover device that enhances the sealing performance of the battery box. Background Art

[0002] With the development of new energy technologies in my country, the use of energy storage containers that can store wind power and photovoltaic electricity is becoming more and more popular. There are multiple groups of battery boxes in the energy storage container. These battery boxes are installed on brackets, and several battery packs are installed in each battery box. In order to reduce the overall weight of the container, the weight of the battery box is required to be as light as possible. The existing battery box has a liquid cooling plate inside for dissipating heat from the battery pack, and an upper cover is also provided on the upper part, which seals the battery pack on the liquid cooling plate. The existing upper cover is made of plastic. When it is fixed to the liquid cooling plate with bolts, due to the strength problem of the upper cover, part of the upper cover will be deformed, resulting in the upper cover and the liquid cooling plate contact part of the part due to bending deformation detachment, resulting in a gap between the upper cover and the liquid cooling plate, resulting in poor sealing of the battery box.

[0003] The above information disclosed in the background technology section is only used to enhance the understanding of the background of the present invention and therefore it may include information that does not constitute the prior art known to a person of ordinary skill in the art. Summary of the invention

[0004] The purpose of the utility model is to overcome the above-mentioned deficiencies of the prior art and provide a cover device for enhancing the sealing performance of a battery box.

[0005] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present invention.

[0006] According to one aspect of the utility model, a cover device for enhancing the sealing performance of a battery box is used to seal a battery pack to a liquid cooling plate of the battery box, comprising:

[0007] The upper cover body is made of plastic, and an outer edge is provided on the lower periphery of the upper cover body, and a first through hole for connecting with a liquid cooling plate located below the upper cover body is provided on the outer edge;

[0008] The reinforcing device comprises a pressing plate and a lifting lug, wherein the pressing plate is made of a rigid material and is covered on the outer edge, and a second through hole corresponding to the first through hole is provided on the pressing plate; and the lifting lug is used to lift the battery box;

[0009] The threaded fastener passes through the first through hole and the second through hole and fixes the pressing plate and the upper cover body to the upper surface of the liquid cooling plate.

[0010] According to an embodiment of the present invention, the lifting ear is fixed to the pressing plate by screws.

[0011] According to an embodiment of the present utility model, the lifting ear and the pressing plate are an integral part.

[0012] According to one embodiment of the utility model, the lifting ear includes a vertical portion, a horizontal portion and a downward-folded portion; the vertical portion is integrally arranged with the pressure plate and is located on one side of the pressure plate, and the horizontal portion is located at the top of the vertical portion and is arranged horizontally; the downward-folded portion is arranged on one side of the horizontal portion and is folded downward.

[0013] According to an embodiment of the present invention, four pressing plates are provided and are respectively installed on the four sides of the upper cover body.

[0014] According to one embodiment of the utility model, the pressing plate is provided with an outer vertical edge which is opposite to the vertical portion.

[0015] According to an embodiment of the present invention, the lifting ear is welded to the pressing plate.

[0016] According to one embodiment of the present utility model, the pressing plate is a frame structure.

[0017] According to one embodiment of the utility model, it also includes a sealing strip arranged below the pressing plate.

[0018] According to one embodiment of the present invention, the material of the pressing plate is a steel plate, an iron plate, an aluminum plate, an aluminum-magnesium alloy or a titanium alloy.

[0019] It can be seen from the above technical solution that the advantages and positive effects of the utility model are:

[0020] The upper cover device of the utility model for enhancing the sealing performance of the battery box is provided with a reinforcing device, and the pressure plate of the reinforcing device is pressed on the outer edge of the upper cover body. When the threaded fastener fixes the upper cover body, the outer edge of the upper cover body can be squeezed, so that the outer edge is squeezed by the liquid cooling plate and the pressure plate at the same time and cannot be deformed. In this way, it can be closely attached to the liquid cooling plate and will not be completely deformed and separated from the liquid cooling plate. The upper cover device can enhance the sealing performance of the battery box. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific embodiments of the present disclosure or the technical solutions in the prior art, the drawings required for use in the specific embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 It is a schematic diagram of the upper cover device for enhancing the sealing performance of the battery box of the utility model;

[0023] Figure 2 is a schematic diagram of the reinforcement device;

[0024] Figure 3 is a schematic diagram of a longer pressure plate of the reinforcement device;

[0025] Figure 4 yes Figure 3 The local enlarged view of point I in the middle;

[0026] Figure 5 is a schematic diagram of the shorter pressure plate of the reinforcement device.

[0027] In the figure: 1, upper cover body 100; 101, outer edge; 200, reinforcement device; 210, pressure plate; 211, second through hole; 212, outer vertical edge; 220, lifting ear; 221, vertical part; 222, horizontal part, 223, downward turning part. DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0029] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] like Figures 1 to 5 As shown, the embodiment of the utility model discloses an upper cover device for enhancing the sealing of the battery box, which is used to seal the battery pack to the liquid cooling plate of the battery box. The battery box mentioned here is installed on a bracket in the energy storage container, and can be used to store electricity generated by new energy sources such as wind energy and solar energy. The liquid cooling plate is a flat structure in the battery box, and cooling water flows inside to dissipate heat for multiple battery packs in the battery box.

[0033] The upper cover device for enhancing the sealing of the battery box according to the embodiment of the utility model comprises an upper cover body 100, a reinforcing device 200, and a threaded fastener. The upper cover body 100 is made of plastic, and an outer edge 101 is provided on the outer periphery of the lower part of the upper cover body, and a first through hole (not shown in the figure) for connecting with a liquid cooling plate located below the upper cover body 100 is provided on the outer edge 101.

[0034] The reinforcing device 200 includes a pressing plate 210 and a lifting lug 220. The pressing plate 210 is made of a rigid material and is pressed on the outer edge 101. A second through hole corresponding to the first through hole is provided on the pressing plate 210. The lifting lug 220 is used to lift the battery box.

[0035] The threaded fastener passes through the first through hole and the second through hole, and fixes the pressing plate 210 and the upper cover body 100 to the upper surface of the liquid cooling plate.

[0036] The upper cover device of the utility model for enhancing the sealing performance of the battery box is provided with a reinforcing device 200, and the pressing plate 210 of the reinforcing device 200 is pressed on the outer edge 101 of the upper cover body 100. When the threaded fastener fixes the upper cover body 100, the outer edge 100 of the upper cover body 100 can be squeezed, so that the outer edge 100 is squeezed by the liquid cooling plate and the pressing plate 210 at the same time and cannot be deformed. In this way, it can be closely attached to the liquid cooling plate and will not be completely deformed and separated from the liquid cooling plate. The upper cover device can enhance the sealing performance of the battery box.

[0037] In this embodiment, the threaded fastener is a screw, which is directly screwed into the threaded hole of the liquid cooling plate. The threaded fastener can also be a fastener such as a stud. When a screw is selected, the screw can also directly pass through the liquid cooling plate and then be fixed to the liquid cooling plate with a nut.

[0038] Since the reinforcing device 200 of the utility model is also provided with a lifting ear 220, the lifting ear 220 can be used to lift the battery box without providing any lifting device on the upper cover body 100. The upper cover body 100 does not need to consider the structural strength too much, and the selection of plastic material can meet the structural strength and meet the requirements of lightweight.

[0039] The connection method between the lifting ear 220 and the pressing plate 210 is not limited, as long as it can meet the use requirements. In some embodiments, the lifting ear 220 can be fixed to the pressing plate 210 by screws. The lifting ear 220 and the pressing plate 210 are manufactured separately and then connected. The processing and manufacturing process is simple, the cost is low, and no special equipment is required. Ordinary machine tools can be used to complete it. The lifting ear 220 can directly use a lifting ear bolt with suitable specifications, and can also be processed into a common lifting structure such as a hook shape or a ring shape.

[0040] In some embodiments, the lifting ear 220 can be welded to the pressing plate 210, and the two do not need to be frequently disassembled. Welding can achieve a reliable connection and reduce processing costs.

[0041] In one embodiment, the ear 220 is an integral part with the pressing plate 210. The pressing plate 210 and the ear 220 can be processed at one time. Specifically, the ear 220 includes a vertical portion 221, a horizontal portion 222, and a downwardly turned portion 223. The vertical portion 220 is integrally arranged with the pressing plate 210 and is located on one side of the pressing plate 210, the horizontal portion 222 is located at the top of the vertical portion 221 and is arranged horizontally; the downwardly turned portion 223 is arranged on one side of the horizontal portion 222 and is folded downward. The ear 220 and the pressing plate 210 can be directly stamped into one piece, which is suitable for mass production.

[0042] Depend on Figure 3 and Figure 3 It can be seen that in this embodiment, the pressing plates 210 are arranged in four pieces, which are respectively installed on the four sides of the upper cover body 100. The end of each pressing plate 210 has a 45° bevel angle, and can be as close as possible and assembled into a rectangle.

[0043] In some embodiments, the pressing plate 210 may also be a frame structure, that is, it is stamped from a whole plate. The material of the pressing plate may be steel plate, iron plate, aluminum plate, aluminum-magnesium alloy or titanium alloy.

[0044] Depend on Figure 3 and Figure 3It can be seen that the pressing plate 210 is also provided with an outer vertical edge 212 opposite to the vertical portion 221. The outer vertical edge 212 can strengthen the strength of the pressing plate 210, so that the cross section of the pressing plate 210 is semi-H-shaped, making it less likely to bend.

[0045] The upper cover device for enhancing the sealing performance of the battery box of the utility model may further include a sealing strip arranged below the pressure plate 210 to further improve the sealing effect and effectively prevent water vapor from entering the interior.

[0046] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0047] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A cover device for enhancing the sealing performance of a battery box, used to seal a battery pack to a liquid cooling plate of the battery box, characterized in that: include: The upper cover body is made of plastic, and an outer edge is provided on the lower periphery of the upper cover body, and a first through hole for connecting with a liquid cooling plate located below the upper cover body is provided on the outer edge; The reinforcing device comprises a pressing plate and a lifting lug, wherein the pressing plate is made of a rigid material and is covered on the outer edge, and a second through hole corresponding to the first through hole is provided on the pressing plate; and the lifting lug is used to lift the battery box; The threaded fastener passes through the first through hole and the second through hole and fixes the pressing plate and the upper cover body to the upper surface of the liquid cooling plate.

2. The upper cover device for enhancing the sealing performance of the battery box according to claim 1, characterized in that: The lifting ear is fixed to the pressing plate by screws.

3. The upper cover device for enhancing the sealing performance of the battery box according to claim 1, characterized in that: The lifting ear and the pressing plate are an integral part.

4. The upper cover device for enhancing the sealing performance of the battery box according to claim 3, characterized in that: The lifting ear includes a vertical portion, a horizontal portion and a downward-turned portion; the vertical portion is integrally arranged with the pressure plate and is located on one side of the pressure plate, the horizontal portion is located at the top of the vertical portion and is arranged horizontally; the downward-turned portion is arranged on one side of the horizontal portion and is folded downward.

5. The upper cover device for enhancing the sealing performance of the battery box according to claim 3, characterized in that: The pressing plates are provided with four strips, which are respectively installed on the four sides of the upper cover body.

6. The upper cover device for enhancing the sealing performance of the battery box according to claim 4, characterized in that: The pressing plate is provided with an outer vertical edge which is opposite to the vertical portion.

7. The upper cover device for enhancing the sealing performance of a battery box according to claim 1, characterized in that: The lifting lug is welded to the pressing plate.

8. The upper cover device for enhancing the sealing performance of a battery box according to claim 1, characterized in that: The pressing plate is a frame structure.

9. The upper cover device for enhancing the sealing performance of a battery box according to any one of claims 1 to 8, characterized in that: Also included is a sealing strip disposed below the pressure plate.

10. The upper cover device for enhancing the sealing performance of a battery box according to claim 1, characterized in that: The material of the pressing plate is steel plate, iron plate, aluminum plate, aluminum-magnesium alloy or titanium alloy.