Novel sealing mechanism for power battery

By designing sealing rings and snap-fit ​​components, the problem of insufficient sealing of power batteries is solved, achieving efficient sealing and convenient maintenance of batteries, and improving battery safety and service life.

CN224020879UActive Publication Date: 2026-03-20QINGDAO YUNQU POWER TECHNOLOGY SERVICE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-18
Publication Date
2026-03-20

AI Technical Summary

Technical Problem

When existing power batteries are in use, water molecules or dust in the air can easily enter through the interface between the battery casing and the sealing cover, leading to short circuits or other malfunctions.

Method used

By employing sealing rings and sealing components, and through the cooperation of compression springs and sealing gaskets, a tight fit is achieved between the sealing cover and the battery casing. The snap-fit ​​components facilitate easy installation and removal, ensuring a tight seal.

Benefits of technology

It effectively prevents external water molecules or dust from entering the battery, avoiding short circuits or other malfunctions, and allows maintenance personnel to quickly disassemble the battery casing for repair.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of power batteries, and discloses a novel sealing mechanism of a power battery, which comprises a battery shell, a sealing rubber ring is arranged on the outer side of the battery shell, a sealing assembly is fixedly connected in the battery shell, and two groups of mounting plates are fixedly connected on the outer side of the battery shell. According to the novel sealing mechanism for the power battery, through the arrangement of the sealing rubber ring and the sealing assembly, when the sealing cover and the battery shell are installed, the sealing cover extrudes the sealing gasket, the sealing gasket extrudes to enable the extrusion spring to be in a compressed state, and the extrusion spring provides counter-acting force to push the sealing gasket to be tightly attached to the sealing cover; and after the battery is mounted, the sealing rubber ring is mounted at the joint and is used for sealing the interface, so that the sealing performance of the battery is further enhanced, external water molecules or dust can be prevented from entering the battery, and short circuit or other faults of the battery are avoided.
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Description

TECHNICAL FIELD

[0001] The utility model relates to power battery technical field especially relates to a new type sealing mechanism of power battery. BACKGROUND

[0002] With the vigorous development of electric vehicle industry and the rise of energy storage field, as the core energy source, the performance and safety of power battery are increasingly important. The working environment of power battery is complex and changeable, and it will be subjected to vibration and impact during vehicle driving, and it also needs to cope with different temperature and humidity conditions. Good sealing is one of the key factors to ensure the safe and stable operation of power battery. The sealing mechanism can prevent the intrusion of external moisture, dust and foreign matters into the battery interior, avoid internal circuit short circuit and corrosion of the battery, prolong the service life of the battery and ensure the stable output of the battery performance.

[0003] The existing battery will enter the inside of the battery from the interface between the battery shell and the sealing cover when the battery is used, so that short circuit or other conditions occur in the inside of the battery. Therefore, a new type sealing mechanism of power battery is proposed. UTILITY MODEL CONTENTS

[0004] (I) Technical problem solved

[0005] The utility model aims at providing a new type sealing mechanism of power battery to solve the problem that the existing battery will enter the inside of the battery from the interface between the battery shell and the sealing cover when the battery is used, so that short circuit or other conditions occur in the inside of the battery.

[0006] (II) Technical scheme

[0007] In order to achieve the above purpose, the utility model is realized by the following technical scheme: a new type sealing mechanism of power battery, comprising a battery shell, a sealing rubber ring is arranged on the outer side of the battery shell, a sealing assembly is fixedly connected in the inside of the battery shell, two groups of mounting plates are fixedly connected on the outer side of the battery shell, a clamping assembly is arranged in the inside of each of the two groups of mounting plates, the sealing assembly comprises a plurality of groups of extrusion springs fixedly connected in the inside of the battery shell, and a sealing washer is fixedly connected to one end of each of the plurality of groups of extrusion springs; each of the two groups of clamping assemblies comprises a clamping spring arranged in the inside of the mounting plate, a moving column is sleeved in the inside of each of the two groups of clamping springs, a moving plate is fixedly connected to one end of each of the two groups of moving columns, and a clamping rod is fixedly connected to one side of each of the two groups of moving plates.

[0008] As a further scheme of the utility model, a sealing cover is arranged on the top surface of the battery shell, and a connecting plate is fixedly connected to each side of the sealing cover. The sealing cover plays a role in sealing the battery.

[0009] As a further scheme of the utility model, the bottom surface of the two groups of connecting plates is fixedly connected with clamping blocks, and the inside of the two groups of clamping blocks is provided with clamping holes.

[0010] As a further scheme of the utility model, the top surface of the sealing cover is fixedly connected with two groups of rotating blocks, the inside of the two groups of rotating blocks is rotatably connected with handles, and the surface of the two groups of handles is sleeved with anti-skid sleeves.

[0011] As a further scheme of the utility model, the inside of the battery shell is provided with a plurality of groups of storage grooves, and the inside of the plurality of groups of storage grooves is provided with battery bodies.

[0012] As a further scheme of the utility model, one side of the battery shell is fixedly connected with a fixed plate, and the surface of the fixed plate is fixedly connected with a label plate.

[0013] As a further scheme of the utility model, the top surface of the sealing cover is provided with two groups of connecting threaded columns, and the outside of the two groups of connecting threaded columns is threadedly connected with connecting nuts.

[0014] (Three) beneficial effects

[0015] The utility model provides a kind of novel sealing mechanism of power battery, with following beneficial effects:

[0016] 1, the novel sealing mechanism of power battery, by the setting of sealing rubber ring and sealing assembly, when sealing cover and battery shell are installed, sealing cover is extruded to sealing washer, and sealing washer extrusion makes that extrusion spring is in compression state, extrusion spring provides a reaction force, and pushes sealing washer and sealing cover tightly, after installation is completed, sealing rubber ring is installed at connecting portion, sealing rubber ring is used to seal interface, to further strengthen the sealing property of battery, so that it can prevent external water molecules or dust from entering the inside of battery, avoid battery short circuit or other faults.

[0017] 2, the novel sealing mechanism of power battery, by the setting of clamping assembly, sliding moving plate, moving plate moves and drives moving column to move, clamping spring is in compression state at this time, clamping block is inserted into the inside of mounting plate, and moving plate is loosened, clamping spring drives moving plate to reset, and clamping rod is inserted into the inside of clamping hole, sealing cover is fixed, so that the disassembly of sealing cover and battery shell becomes more easy, so that maintenance personnel can quickly open battery shell and carry out maintenance operation. Attached Figure Description

[0018] Fig. 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Fig. 2 This is a schematic diagram of the sealing ring structure of this utility model;

[0020] Fig. 3 This is a schematic diagram of the snap-fit ​​assembly structure of this utility model;

[0021] Fig. 4 This is a schematic diagram of the sealing component structure of this utility model.

[0022] In the diagram: 1. Battery casing; 2. Sealing ring; 3. Sealing assembly; 301. Compression spring; 302. Sealing gasket; 4. Mounting plate; 5. Snap-fit ​​assembly; 501. Snap-fit ​​spring; 502. Moving post; 503. Moving plate; 504. Snap-fit ​​rod; 6. Sealing cover; 7. Connecting plate; 8. Snap-fit ​​block; 9. Rotating block; 10. Handle; 11. Battery body; 12. Fixing plate; 13. Label plate; 14. Threaded post; 15. Connecting nut. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0024] Please see Figs. 1 to 4 This utility model provides a technical solution: a novel sealing mechanism for a power battery, including a battery casing 1, a sealing ring 2 on the outer side of the battery casing 1, and a sealing assembly 3 fixedly connected inside the battery casing 1. The sealing assembly 3 seals the battery to prevent external moisture from entering the battery. Two sets of mounting plates 4 are fixedly connected to the outer side of the battery casing 1, and each of the two sets of mounting plates 4 has a snap-fit ​​assembly 5 inside. The snap-fit ​​assembly 5 allows the battery casing 1 and the sealing cover 6 to be quickly installed and removed. The sealing assembly 3 includes several sets of compression springs 301 fixedly connected inside the battery casing 1, and a sealing gasket 302 fixedly connected to one end of each set of compression springs 301. Each of the two sets of snap-fit ​​assemblies 5 includes a snap-fit ​​spring 501 inside the mounting plate 4. A moving post 502 is sleeved inside each of the two sets of snap-fit ​​springs 501, and a moving plate 503 is fixedly connected to one end of each of the two sets of moving posts 502. A snap-fit ​​rod 504 is fixedly connected to one side of each of the two sets of moving plates 503.

[0025] The top surface of the battery shell 1 is provided with a sealing cover 6, both sides of the sealing cover 6 are fixedly connected with connecting plates 7, through the setting of the sealing cover 6, the sealing effect of the battery is achieved;

[0026] The bottom surfaces of the two groups of connecting plates 7 are fixedly connected with clamping blocks 8, the interiors of the two groups of clamping blocks 8 are provided with clamping holes, through the setting of the clamping blocks 8, the mounting effect of the battery is achieved;

[0027] The top surface of the sealing cover 6 is fixedly connected with two groups of rotating blocks 9, the interiors of the two groups of rotating blocks 9 are rotatably connected with handles 10, the surfaces of the two groups of handles 10 are sleeved with anti-skid sleeves, through the setting of the anti-skid sleeves, the effect of avoiding the hands of the user from slipping is achieved;

[0028] The interior of the battery shell 1 is provided with a plurality of groups of storage grooves, the interiors of the plurality of groups of storage grooves are provided with battery bodies 11, through the setting of the storage grooves, the effect of placing the battery bodies 11 is achieved;

[0029] One side of the battery shell 1 is fixedly connected with a fixed plate 12, the surface of the fixed plate 12 is fixedly connected with a label plate 13, through the setting of the label plate 13, the effect of prompting the operator to pay attention to matters is achieved;

[0030] The top surface of the sealing cover 6 is provided with two groups of connecting threaded columns 14, the outer sides of the two groups of connecting threaded columns 14 are threadedly connected with connecting nuts 15, through the setting of the connecting threaded columns 14, the effect of connecting with external power lines and the like is achieved.

[0031] In the utility model, the working steps of the device are as follows:

[0032] The first step is that when the sealing cover 6 and the battery shell 1 are installed, the sealing cover 6 exerts pressure on the sealing gasket 302, the sealing gasket 302 is pressed to make the compression spring 301 be in a compressed state, the compression spring 301 provides a counterforce, pushes the sealing gasket 302 and the sealing cover 6 to be closely combined, after installation is completed, the sealing rubber ring 2 is installed at the connecting portion, the sealing rubber ring 2 is used to seal the connecting portion, and the sealing property of the battery is further strengthened;

[0033] The second step is that the sliding moving plate 503 is moved, the moving plate 503 drives the moving column 502 to move, at this time, the clamping spring 501 is in a compressed state, the clamping block 8 is inserted into the interior of the mounting plate 4, the moving plate 503 is loosened, the clamping spring 501 drives the moving plate 503 to reset, and the clamping rod 504 is inserted into the interior of the clamping hole, so that the sealing cover 6 is fixed.

[0034] It should be noted that the device structure and the drawings of the present application mainly describe the principle of the present application, and the setting of the power mechanism, the power supply system and the control system of the device is not completely described, and under the premise of understanding the principle of the above-mentioned application by the person skilled in the art, the specific of the power mechanism, the power supply system and the control system can be clearly known, and the control mode of the application file is automatically controlled by the controller, and the control circuit of the controller can be realized by simple programming of the person skilled in the art.

[0035] The standard parts used can be purchased from the market, and can be ordered according to the description and drawings, the specific connection mode of each part adopts the conventional bolt, rivet, welding and other conventional means in the prior art, the mechanical, part and equipment adopt the conventional type in the prior art, and the components known by the person skilled in the art, the structure and principle thereof can be known by the technical manual or by the conventional experimental method.

[0036] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A novel sealing mechanism for a power battery, comprising a battery casing (1), characterized in that: A sealing ring (2) is provided on the outer side of the battery casing (1), a sealing assembly (3) is fixedly connected inside the battery casing (1), and two sets of mounting plates (4) are fixedly connected on the outer side of the battery casing (1). Each of the two sets of mounting plates (4) is provided with a snap-fit ​​assembly (5). The sealing assembly (3) includes several sets of compression springs (301) fixedly connected inside the battery casing (1), and a sealing gasket (302) is fixedly connected to one end of each set of compression springs (301). Both sets of the snap-fit ​​components (5) include snap-fit ​​springs (501) disposed inside the mounting plate (4), and both sets of the snap-fit ​​springs (501) are fitted with movable posts (502). One end of each set of movable posts (502) is fixedly connected to a movable plate (503), and one side of each set of movable plates (503) is fixedly connected to a snap-fit ​​rod (504).

2. The novel sealing mechanism for a power battery according to claim 1, characterized in that: The top surface of the battery casing (1) is provided with a sealing cover (6), and a connecting plate (7) is fixedly connected to both sides of the sealing cover (6).

3. The novel sealing mechanism for a power battery according to claim 2, characterized in that: Both sets of connecting plates (7) have snap-fit ​​blocks (8) fixedly connected to their bottom surfaces, and both sets of snap-fit ​​blocks (8) have snap-fit ​​holes inside.

4. The novel sealing mechanism for a power battery according to claim 2, characterized in that: The top surface of the sealing cover (6) is fixedly connected to two sets of rotating blocks (9), and the interior of each set of rotating blocks (9) is rotatably connected to a handle (10), and the surface of each set of handles (10) is fitted with an anti-slip sleeve.

5. A novel sealing mechanism for a power battery according to claim 1, characterized in that: The battery casing (1) has several sets of storage slots inside, and each set of storage slots contains a battery body (11).

6. The novel sealing mechanism for a power battery according to claim 1, characterized in that: A fixing plate (12) is fixedly connected to one side of the battery casing (1), and a label plate (13) is fixedly connected to the surface of the fixing plate (12).

7. A novel sealing mechanism for a power battery according to claim 2, characterized in that: The top surface of the sealing cover (6) is provided with two sets of connecting threaded posts (14), and the outer sides of the two sets of connecting threaded posts (14) are threaded with connecting nuts (15).