Improved battery shell front cover

By designing a combination of positioning plates and positioning holes on the front cover of the battery casing, the problem of sealing ring misalignment was solved, the waterproof performance of the lithium battery was improved, and the need to remake the battery casing was avoided.

CN223693287UActive Publication Date: 2025-12-19福建华振新能源科技有限公司
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Patent Information

Application Number
CN202422829169.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-20
Publication Date
2025-12-19
Estimated Expiration
2034-11-20

AI Technical Summary

Technical Problem

Existing lithium battery casings are prone to having their sealing rings shift after prolonged pressure, affecting waterproofing.

Method used

An improved battery casing front cover was designed. By setting a positioning hole on the positioning plate, the diameter of which is smaller than that of the switch opening, a concentric stepped surface is formed, which allows the sealing ring to be stuck on the step and not shift. Combined with the rivet nut for fixation, the sealing effect is ensured.

Benefits of technology

This ensures that the sealing ring does not shift during assembly, improving the battery's waterproof performance and eliminating the need to replace the entire battery casing, thus maintaining excellent sealing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of battery protection, in particular to an improved battery shell front cover which comprises a shell front cover body, a charging port is formed in one side of the shell front cover body, a switch port is formed in the other side of the charging port, a positioning piece is arranged in the bottom of the switch port, and a positioning port is formed in the position, opposite to the switch port, of the positioning piece. The caliber of the positioning opening is smaller than that of the switch opening. According to the utility model, the caliber of the positioning opening on the positioning sheet is smaller than that of the switch opening, so that a concentric step surface is formed, and the sealing ring is clamped on the step without displacement. Therefore, in the assembling process of the round metal switch, the waterproof sealing ring does not shift, better waterproof requirements are met, and all battery shells do not need to be replaced for re-manufacturing.
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Description

TECHNICAL FIELD

[0001] The utility model relates to battery protection technical field especially, it is an improved battery shell front cover. BACKGROUND

[0002] At present, lithium battery is a kind of battery by lithium metal or lithium alloy as positive / negative electrode material, using non-aqueous electrolyte solution, due to the chemical characteristics of lithium metal is very active, make the processing, preservation, use of lithium metal, the environment requirement is very high, with the development of science and technology, lithium battery has become mainstream, but the waterproof structure of the existing lithium battery shell still has some deficiencies.

[0003] Many lithium batteries will be used on electric motorcycle, so a metal key master switch will be arranged on the front cover of battery shell to control the operation of battery, generally, sealing ring is arranged on the metal key master switch to ensure the waterproof effect of battery shell and inside, long-term pressing can easily cause the sealing ring to be extruded and out of position, which will affect the overall waterproof effect. UTILITARY MODEL CONTENTS

[0004] Other features and advantages of the present utility model will be set forth in the following specification, and some become apparent from the specification, or be understood from the practice of the present utility model. The purpose and other advantages of the present utility model can be realized and obtained by the structure specially pointed out in the specification and other specification drawings.

[0005] The utility model aims at overcoming the above-mentioned insufficient, provide an improved battery shell front cover to solve the existing problems.

[0006] To achieve the above-mentioned purpose, the technical solution of the utility model is as follows: an improved battery shell front cover, including the shell front cover, the shell front cover one side is equipped with the charging port, the charging port other side is equipped with the switch mouth, the switch mouth bottom is equipped with the locating sheet, the locating sheet is equipped with the locating mouth with the switch mouth opposite position, the caliber of the locating mouth is less than the switch mouth.

[0007] In some embodiments, the locating sheet both ends are equipped with fixed hole, and the locating sheet is connected with the shell front cover through the fixed hole.

[0008] In some embodiments, the fixed hole is fixed by pressure rivet nut.

[0009] In some embodiments, the locating sheet one end is equipped with both sides and is equipped with semicircle notch, and the other end both sides are equipped with fixed hole, the semicircle notch is fixed by welding, and the fixed hole is fixed by pressure rivet nut.

[0010] In some embodiments, the locating sheet end surface is equipped with locating hole. In some embodiments, the locating sheet end surface is equipped with locating hole.

[0011] By adopting the technical scheme, the utility model has the beneficial effects that: the utility model utilizes the caliber of the positioning port on the positioning sheet is less than the switch port, so that a concentric step surface is formed, and the sealing ring is clamped on the step and does not run out of position. In this way, the circular metal switch can prevent the waterproof sealing ring from running out of position during assembly, and better waterproof requirements are achieved, and all battery housings do not need to be replaced and reprocessed.

[0012] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory and are not restrictive of the disclosure.

[0013] It is self-evident that the above-mentioned purposes and other purposes of the utility model will become more apparent after the description of the preferred embodiments of the utility model in the following various drawings and diagrams.

[0014] In order to make the above and other purposes, features and advantages of the utility model more apparent and easy to understand, one or several preferred embodiments are described below, and the drawings are shown, and the detailed description is as follows. BRIEF DESCRIPTION OF DRAWINGS

[0015] The drawings are used to provide a further understanding of the utility model, and constitute a part of the specification, and are used together with the embodiments of the utility model to explain the utility model, and do not constitute a limitation on the utility model.

[0016] In the drawings, the same components use the same reference signs, and the drawings are schematic and are not necessarily drawn according to the actual scale.

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description can only be one or several embodiments of the utility model, and those skilled in the art can also obtain other drawings according to such drawings without paying creative labor.

[0018] Figure 1 The structure external schematic view of the battery shell front cover of some embodiments of the utility model;

[0019] Figure 2 The structure internal schematic view of the battery shell front cover of some embodiments of the utility model;

[0020] Figure 3 The structure schematic view of the positioning sheet of some embodiments of the utility model. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the utility model clearer and more apparent, the utility model is further described in detail below in combination with specific embodiments. It should be understood that the specific embodiments described herein are merely used to explain the utility model, but not used to limit the utility model.

[0022] In addition, in the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like is based on the orientation or position relationship shown in the drawings, and is merely for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0023] In the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, or detachable connection, or integrated; can be directly connected, or indirectly connected through an intermediate medium, can be the communication inside two elements or the interaction relationship between two elements. However, it is noted that direct connection means that the connection between the two main bodies does not form a connection relationship through a transition structure, but is connected to form a whole only through a connection structure. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0024] In the utility model, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. In the description of the specification, the description of the reference terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0025] The specific embodiments of the utility model are described below with reference to the drawings.

[0026] Referring to Figures 1-3 , Figure 1 is the structure external schematic view of the battery shell front cover of some embodiments of the utility model; Figure 2The utility model provides some embodiments' battery shell front cover's structure internal schematic view. Figure 3 Some embodiments' positioning sheet's structure schematic view.

[0027] The utility model provides an improved battery shell front cover, including shell front cover 1, the shell front cover 1 one side is equipped with charging port 11, the charging port 11 other side is equipped with switch port 12, the switch port 12 bottom is equipped with positioning sheet 2, the positioning sheet 2 with the switch port 12 opposite position is equipped with locating port 21, the caliber of locating port 21 is less than the switch port 12.

[0028] The caliber of locating port 21 of positioning sheet 2 is less than switch port 12, so a concentric step surface is formed, and the sealing ring is clamped on the step and does not run out of position. This can prevent the waterproof sealing ring from running out of position during the assembly of the circular metal switch, and better waterproof requirements are achieved. Therefore, all battery shells do not need to be replaced and re-made. The charging port 11 is used to install a charger to charge the battery, and is not described in detail.

[0029] According to some embodiments of the utility model, the positioning sheet 21 is connected to the shell front cover 1 through the fixing hole 22. The direct connection through the fixing hole 22 saves time and effort, and does not require too complex installation.

[0030] According to some embodiments of the utility model, the fixing hole 22 is fixed through the rivet nut 23. After the rivet nut 23 is used, the back surface of the front cover can be kept flat, and there is no protrusion. This is very beneficial for applications that require to keep the surface flatness.

[0031] According to some embodiments of the utility model, one end of the positioning sheet 21 is provided with semicircular notches 24 on both sides, and the other end is provided with fixing holes 22. The semicircular notches 24 are fixed through welding, and the fixing holes 22 are fixed through the rivet nut 23. The two semicircular notches and the rivet nut can be used to achieve the positioning requirement. After welding, a concentric step surface is formed, and the sealing ring is clamped on the step and does not run out of position. Therefore, two installation holes of the rivet nut 23 are saved, and the waterproof performance is improved.

[0032] According to some embodiments of the utility model, the positioning sheet 2 is provided with a positioning hole 25. The positioning hole 25 is convenient for positioning and installing the positioning sheet 2, and avoids that the metal switch and the sealing ring cannot be installed well after installation error.

[0033] It is to be understood that the embodiments disclosed herein are not limited to particular treatments or materials disclosed herein but are extended to equivalents thereof It is also to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting.

[0034] As used in this description, the term "embodiment" means a specific feature, or a combination of features described in connection with an embodiment includes in at least one embodiment of the present application. Therefore, the phrase or "embodiment" appearing throughout this description does not necessarily all refer to the same embodiment.

[0035] Furthermore, the described features or characteristics can be incorporated in one or more embodiments in any other suitable manner. In the above description, some specific details are provided, such as thickness, number, etc., to provide a thorough understanding of embodiments of the present application. However, those skilled in the relevant art will understand that the present application can be implemented without one or more of the specific details or also with other methods, components, materials, etc.

Claims

1. An improved battery case front cover, characterized by, The utility model relates to a shell front cover which is provided with a charging port on one side, a switch port on the other side, a positioning sheet in the bottom of the switch port, a positioning port on the opposite side of the positioning sheet from the switch port, and a port diameter of the positioning port being smaller than that of the switch port. Both ends of the positioning sheet are provided with fixing holes, and the positioning sheet is connected to the shell front cover through the fixing holes.

2. The improved battery case front cover according to claim 1, characterized by: The fixing holes are fixed by a press rivet nut.

3. The improved battery case front cover according to claim 2, wherein: One end of the positioning sheet is provided with semicircular notches on both sides, and the other end is provided with fixing holes, the semicircular notches are fixed by welding, and the fixing holes are fixed by a press rivet nut.

4. The improved battery case front cover according to claim 1, wherein: The end face of the positioning sheet is provided with a positioning hole.

5. The improved battery case front cover according to claim 1, wherein: ​