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 convenient to position and a battery cover plate, the sealing structure convenient to position comprises a top cover sheet, a pole column hole for a pole column to penetrate through is arranged in the top cover sheet, the pole column is provided with a middle section located in the pole column hole, and an annular sealing ring is arranged in the pole column hole. The sealing ring is arranged in a surrounding manner along the circumferential direction of the pole hole; the middle section and the top cover piece oppositely clamp a sealing ring up and down, the sealing ring seals the middle section and the top cover piece, the periphery of the sealing ring extends outwards to form a positioning ring, and the positioning ring abuts against the top cover piece; the middle section and the top cover piece are relatively sealed through the sealing ring, the positioning ring on the sealing ring abuts against the top cover piece and can be used for positioning the sealing ring, the sealing ring can be conveniently assembled between the top cover piece and the pole, in the assembling process, the phenomenon that the sealing ring is not easy to position or deviates is avoided, and the positioning effect and the sealing effect are good.

Description

Technical Field

[0001] This utility model patent relates to the technical field of terminal posts, and more specifically, to a sealing structure and a battery cover that are easy to position. Background Technology

[0002] With the development of new energy sources and the widespread use of various electric devices, lithium batteries are widely used in various products.

[0003] The battery cover is an important component of the battery. It includes a top cover plate, through which terminals are inserted. These terminals are connected to the battery cells and to external devices, thus enabling the battery to supply power.

[0004] In the prior art, a sealing ring is provided between the top cover plate and the pole to ensure the pole is sealed in the top cover plate. However, the sealing ring does not have a positioning structure. During the assembly process, the sealing ring is prone to problems such as poor positioning or misalignment, which reduces the sealing effect. Utility Model Content

[0005] The purpose of this invention is to provide a sealing structure that is easy to position, in order to solve the problem of poor positioning of the sealing ring between the pole and the top cover plate in the prior art.

[0006] This utility model is implemented as follows: a sealing structure that facilitates positioning includes a top cover plate, in which an electrode post hole is provided for the electrode post to pass through. The electrode post has a central section located in the electrode post hole, and an annularly arranged sealing ring is provided in the electrode post hole. The sealing ring is arranged around the circumference of the electrode post hole. The central section and the top cover plate clamp the sealing ring from top to bottom, and the sealing ring seals the space between the central section and the top cover plate. A positioning ring extends outward from the outer periphery of the sealing ring and abuts against the top cover plate.

[0007] Furthermore, the positioning ring is arranged around the outer periphery of the sealing ring.

[0008] Furthermore, the pole hole has an upward-facing lower surface, and the sealing ring abuts against the lower surface from top to bottom.

[0009] Furthermore, the lower surface is arranged circumferentially around the pole post hole.

[0010] Furthermore, the middle section has a downward-facing upper surface, which is arranged opposite to the lower surface at an interval, and the upper surface presses against the sealing ring from top to bottom.

[0011] Furthermore, the outer periphery of the middle section is provided with an outer peripheral ring, and the bottom of the outer peripheral ring formed on the upper surface.

[0012] Furthermore, the outer circumference ring is arranged to enclose the outer periphery of the pole post.

[0013] Furthermore, the rear end of the positioning ring is smaller than the thickness of the sealing ring, and the positioning ring is disposed in the middle of the sealing ring and is arranged in a closed loop around the circumference of the sealing ring; a bottom step area is formed between the bottom of the positioning ring and the outer periphery of the sealing ring.

[0014] The lower surface is provided with annularly arranged protruding rings, which are embedded in the bottom stepped area. The positioning ring presses against the protruding rings from top to bottom.

[0015] Furthermore, the outer circumference of the outer ring is wrapped with a rubber-coated ring, which extends to the bottom of the outer circumference to form a bottom ring arranged in annular shape. The bottom ring presses against the sealing ring and the positioning ring from top to bottom, and the sealing ring is in a state of compression deformation.

[0016] Compared with the prior art, the sealing structure provided by this utility model is easy to position. It uses a sealing ring to seal the middle section and the top cover plate, thereby making the pole and the top cover plate sealed together. The positioning ring on the sealing ring abuts against the top cover plate and can be used to position the sealing ring, which makes it easy to assemble the sealing ring between the top cover plate and the pole. During the assembly process, there will be no problems such as poor positioning or misalignment of the sealing ring. The positioning effect is good and the sealing effect is good.

[0017] This utility model also provides a battery cover, which includes the aforementioned sealing structure that facilitates positioning.

[0018] Compared with the prior art, the battery cover provided by this utility model includes the aforementioned sealing structure that facilitates positioning. By setting a positioning ring on the outer periphery of the sealing ring, the battery cover can be positioned peripherally during assembly using the positioning ring, which facilitates the installation of the sealing ring and prevents the sealing ring from shifting, thus greatly improving the sealing effect. Attached Figure Description

[0019] Figure 1 This is a cross-sectional schematic diagram of the sealing structure for easy positioning provided by this utility model;

[0020] Figure 2 This is a three-dimensional schematic diagram of the sealing ring provided by this utility model. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] The implementation of this utility model will be described in detail below with reference to specific embodiments.

[0023] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0024] Reference Figure 1-2 The image shown is a preferred embodiment of the present invention.

[0025] The sealing structure for easy positioning includes a top cover plate 300, in which a pole post 200 passes through a pole post hole. The pole post 200 has a central section 201 located in the pole post hole, and a sealing ring 100 arranged in an annular manner in the pole post hole. The sealing ring 100 is arranged around the pole post hole in a circumferential manner.

[0026] The upper end of the pole post 200 extends into a top cover plate 300 for connection with external devices, the lower end of the pole post 200 is used for connection with the battery cell, and the middle section 201 is inserted into the top cover plate 300.

[0027] The middle section 201 and the top cover plate 300 clamp the sealing ring 100 from top to bottom, and the sealing ring 100 seals the middle section 201 and the top cover plate 300. The outer periphery of the sealing ring 100 extends outward with a positioning ring 101, which abuts against the top cover plate 300.

[0028] The aforementioned easy-to-position sealing structure uses a sealing ring 100 to seal the middle section 201 and the top cover plate 300 relative to each other, thereby achieving a sealed connection between the pole post 200 and the top cover plate 300. The positioning ring 101 on the sealing ring 100 abuts against the top cover plate 300 and can be used to position the sealing ring 100, making it easy for the sealing ring 100 to be assembled between the top cover plate 300 and the pole post 200. During the assembly process, there will be no problems such as the sealing ring 100 being difficult to position or being misaligned, resulting in good positioning and sealing effects.

[0029] In this embodiment, the positioning ring 101 is arranged around the outer circumference ring 202 of the sealing ring 100, which ensures that the positioning ring 101 is positioned in the full circumference of the sealing ring 100, resulting in a better positioning effect.

[0030] In this embodiment, the pole hole has an upward-facing lower surface, and the sealing ring 100 abuts against the lower surface from top to bottom, which facilitates the placement and positioning of the sealing ring 100.

[0031] In this embodiment, the lower surface is arranged around the periphery of the pole hole, so that the entire sealing ring 100 abuts against the lower surface from top to bottom, achieving full circumferential sealing contact.

[0032] In this embodiment, the middle section 201 has a downward-facing upper surface, and the upper surface and the lower surface are arranged opposite each other at an interval. The upper surface presses against the sealing ring 100 from top to bottom. In this way, the upper surface and the lower surface clamp the sealing ring 100 towards each other, and deform the sealing ring 100 so that the pole post 200 and the top cover plate 300 are fully circumferentially sealed.

[0033] In this embodiment, the outer periphery of the middle section 201 is provided with an outer peripheral ring 202, and the bottom of the outer peripheral ring 202 formed on the upper surface facilitates the arrangement of the sealing ring 100. The extended outer peripheral ring 202 presses and clamps the sealing ring 100 from top to bottom.

[0034] In this embodiment, the outer circumferential ring 202 is arranged in a closed loop around the outer circumference of the pole post 200, so that the sealing ring 100 is clamped and pressed in the entire circumference by the outer circumferential ring 202.

[0035] In this embodiment, the rear end of the positioning ring 101 is smaller than the thickness of the sealing ring 100, and the positioning ring 101 is disposed in the middle of the sealing ring 100, arranged in a closed loop around the circumference of the sealing ring 100; a bottom step area is formed between the bottom of the positioning ring 101 and the outer periphery of the sealing ring 100; a raised ring 400 is provided on the lower surface, and the raised ring 400 is embedded in the bottom step area. The positioning ring 101 presses against the raised ring 400 from top to bottom.

[0036] In this way, by forming a bottom step area and a raised ring 400, when the sealing ring 100 is assembled, after the sealing ring 100 is placed on the lower surface, the raised ring 400 is embedded in the bottom step area, ensuring that the sealing ring 100 is stable on the lower surface, with a better positioning effect, and preventing the sealing ring 100 from shifting during the process of being squeezed and deformed.

[0037] In this embodiment, the outer periphery of the outer ring 202 is wrapped with a rubber-coated ring 500, which extends to the bottom of the outer periphery 202 to form a bottom ring arranged in annular shape. The bottom ring presses against the sealing ring 100 and the positioning ring 101 from top to bottom, and the sealing ring 100 is in a compressed and deformed state.

[0038] Simultaneously using the rubber-coated ring 500 to press against the sealing ring 100 and the positioning ring 101, multiple positions of the sealing ring 100 can be pressed, making the sealing ring 100 stable between the outer peripheral ring 202 and the lower surface.

[0039] This embodiment also provides a battery cover, which includes the aforementioned sealing structure for easy positioning. By providing a positioning ring 101 on the outer periphery of the sealing ring 100, the battery cover can be positioned peripherally using the positioning ring 101 during assembly, facilitating the installation of the sealing ring 100 and preventing displacement of the sealing ring 100, thus greatly improving the sealing effect.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sealing structure that facilitates positioning, characterized in that, The device includes a top cover plate, which has a pole hole through which a pole post passes. The pole post has a central section located in the pole hole. The pole hole has a sealing ring arranged in annularly, which is arranged around the circumference of the pole hole. The central section and the top cover plate clamp the sealing ring from top to bottom, and the sealing ring seals the space between the central section and the top cover plate. A positioning ring extends outward from the outer periphery of the sealing ring and abuts against the top cover plate. The positioning ring is arranged around the outer periphery of the sealing ring; The pole hole has an upward-facing lower surface, and the sealing ring abuts against the lower surface from top to bottom; The lower surface is arranged around the perimeter of the pole hole; The middle section has a downward-facing upper surface, which is arranged opposite to the lower surface at an interval, and the upper surface presses against the sealing ring from top to bottom; The middle section has an outer circumference protruding from its outer periphery, and the bottom of the outer circumference formed on the upper surface; The outer ring is arranged to enclose and surround the outer periphery of the pole post; The rear end of the positioning ring is smaller than the thickness of the sealing ring, and the positioning ring is located in the middle of the sealing ring and is arranged in a closed loop around the circumference of the sealing ring; a bottom step area is formed between the bottom of the positioning ring and the outer periphery of the sealing ring. The lower surface is provided with a ring-shaped protrusion, the protrusion is embedded in the bottom step area, and the positioning ring presses against the protrusion from top to bottom; The outer circumference of the outer ring is wrapped with a rubber-coated ring, which extends to the bottom of the outer circumference ring to form a bottom ring arranged in a ring shape. The bottom ring presses against the sealing ring and the positioning ring from top to bottom, and the sealing ring is in a state of compression deformation.

2. A battery cover, characterized in that, Includes the easy-to-position sealing structure as described in claim 1.

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