CN-224217584-U - Sealing structure convenient to position and battery cover plate

Abstract

The utility model relates to the technical field of battery top covers, and discloses a sealing structure and a battery cover plate convenient to position, wherein the sealing structure comprises a top cover plate, a pole hole for a pole to pass through is formed in the top cover plate, the pole is provided with a middle section positioned in the pole hole, a sealing ring which is annularly arranged in the pole hole is circumferentially and circumferentially arranged, the sealing ring is clamped between the middle section and the top cover plate in an up-down opposite manner, the sealing ring seals the middle section and the top cover plate, a positioning ring extends from the outer Zhou Chaowai of the sealing ring and abuts against the top cover plate, the sealing ring is used for relatively sealing the middle section and the top cover plate, the positioning ring on the sealing ring abuts against the top cover plate, the sealing ring can be used for positioning, the sealing ring is conveniently assembled between the top cover plate and the pole, the sealing ring cannot be positioned or offset in a poor positioning effect and good sealing effect in the assembling process.

Inventors

• ZHANG YAHAO
• LIU JUNWEI

Assignees

• 广东力宏精密科技有限公司

Dates

Publication Date

20260508

Application Date

20250401

Claims (2)

1. 1. The sealing structure convenient to position is characterized by comprising a top cover plate, wherein a pole hole for a pole to pass through is formed in the top cover plate, the pole is provided with a middle section positioned in the pole hole, and a sealing ring which is annularly arranged is arranged in the pole hole and circumferentially surrounds the pole hole; the positioning ring is circumferentially arranged along the periphery of the sealing ring; The pole hole is internally provided with a lower surface which is upwards arranged, and the sealing ring is abutted against the lower surface from top to bottom; the lower face is circumferentially arranged along the circumference of the pole hole; The middle section is provided with an upper surface which is arranged downwards, the upper surface and the lower surface are oppositely arranged at intervals, and the upper surface is propped against the sealing ring from top to bottom; The periphery of the middle section is convexly provided with a peripheral ring, and the upper surface forms the bottom of the peripheral ring; the peripheral ring is arranged in a closed and encircling manner along the periphery of the pole; The rear end of the positioning ring is smaller than the thickness of the sealing ring, and the positioning ring is arranged in the middle of the sealing ring and is arranged in a closed and encircling manner along the circumferential direction of the sealing ring; the lower surface is convexly provided with a convex ring which is annularly arranged, the convex ring is embedded in the bottom step area, and the positioning ring is propped against the convex ring from top to bottom; The periphery of the peripheral ring is wrapped with a rubber coating ring, the rubber coating ring extends to the bottom of the peripheral ring to form a bottom ring which is annularly arranged, the bottom ring is propped against the sealing ring and the positioning ring from top to bottom, and the sealing ring is in a compression deformation state.
2. 2. A battery cover comprising the positioning-facilitating seal of claim 1.

Description

Sealing structure convenient to position and battery cover plate Technical Field The utility model relates to the technical field of polar posts, in particular to a sealing structure and a battery cover plate which are convenient to position. Background With the development of new energy and the popularization and application of various electric devices, lithium batteries are widely used in various products. The battery cover plate is an important component part in the battery and comprises a top cover plate, wherein a pole is penetrated in the top cover plate, is connected with the battery core and is connected with external equipment, so that the function of battery power supply connection is realized. In the prior art, a sealing ring is arranged between the top cover plate and the pole to ensure the sealing of the pole in the top cover plate, but the sealing ring is not provided with a positioning structure, so that the sealing ring is easy to be positioned poorly or offset in the assembly process, and the sealing effect is reduced. Disclosure of utility model The utility model aims to provide a sealing structure convenient to position, and aims to solve the problem that in the prior art, a sealing ring between a pole and a top cover sheet is not positioned well. The sealing structure is realized in such a way that the positioning is convenient, and comprises a top cover plate, wherein a pole hole for a pole to pass through is formed in the top cover plate, the pole is provided with a middle section positioned in the pole hole, a sealing ring which is annularly arranged is arranged in the pole hole, the sealing ring is circumferentially and circumferentially arranged along the pole hole, the sealing ring is clamped between the middle section and the top cover plate in an up-down opposite manner by the middle section and the top cover plate, the sealing ring seals the middle section and the top cover plate, and a positioning ring extends out Zhou Chaowai of the sealing ring and is abutted against the top cover plate. Further, the locating ring is circumferentially arranged along the periphery of the sealing ring. Further, the pole hole is internally provided with a lower surface which is upwards arranged, and the sealing ring is abutted against the lower surface from top to bottom. Further, the lower face is circumferentially arranged along the circumference of the pole bore. Further, the middle section is provided with an upper surface which is arranged downwards, the upper surface and the lower surface are arranged oppositely at intervals, and the upper surface is pressed against the sealing ring from top to bottom. Further, the outer periphery of the middle section is convexly provided with an outer periphery ring, and the upper surface forms the bottom of the outer periphery ring. Further, the peripheral ring is disposed circumferentially around the periphery of the pole. Further, the rear end of the positioning ring is smaller than the thickness of the sealing ring, and the positioning ring is arranged in the middle of the sealing ring and is arranged in a closed and encircling manner along the circumferential direction of the sealing ring; The lower face is convexly provided with a convex ring which is annularly arranged, and the convex ring is embedded in the bottom step area. The positioning ring is propped against the protruding ring from top to bottom. Further, the periphery of the peripheral ring is wrapped with a rubber coating ring, the rubber coating ring extends to the bottom of the peripheral ring to form a bottom ring which is annularly arranged, the bottom ring is propped against the sealing ring and the positioning ring from top to bottom, and the sealing ring is in a compression deformation state. Compared with the prior art, the sealing structure convenient to position provided by the utility model has the advantages that the sealing ring is utilized to seal the middle section and the top cover sheet relatively, so that the pole column and the top cover sheet are in sealing connection, the positioning ring on the sealing ring is abutted against the top cover sheet, the sealing ring can be used for positioning the sealing ring, the sealing ring is convenient to assemble between the top cover sheet and the pole column, the phenomena of poor positioning or deviation of the sealing ring and the like can not occur in the assembling process, the positioning effect is good, and the sealing effect is good. The utility model also provides a battery cover plate which comprises the sealing structure convenient to position. Compared with the prior art, the battery cover plate provided by the utility model comprises the sealing structure convenient to position. Through setting up the holding ring in the periphery of sealing washer, battery cover plate can utilize the holding ring to carry out the periphery location at the in-process of assembly, and the installation of sealing washer of being conv