Lower plastic part and pole installation ventilation structure and battery cover plate
By setting a venting notch in the enclosed area of the lower plastic part, the problem of difficult pole installation was solved, achieving convenient pole installation and improved battery cover quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG LEEHOM PRECISION TECH CO LTD
- Filing Date
- 2025-04-30
- Publication Date
- 2026-05-08
AI Technical Summary
In the existing technology, it is difficult to install the lower plastic part and the pole post, mainly because the air is compressed and forms a large pressure when the connecting piece is embedded in the enclosed area, which makes installation difficult.
Ventilation gaps are provided around the outer periphery of the enclosed area of the lower plastic part. These ventilation gaps are connected to the enclosed area, allowing air to escape through them, thus avoiding air compression and simplifying the installation process of the pole.
The design of the vent allows air to be quickly expelled during the installation of the terminal post, improving installation efficiency, enhancing the torque value of the terminal post, and improving the quality and yield of the battery cover.
Smart Images

Figure CN224217583U_ABST
Abstract
Description
Technical Field
[0001] This utility model patent relates to the technical field of battery cover plates, specifically to a ventilated structure for mounting the lower plastic part and the terminal post, and a battery cover plate. Background Technology
[0002] The battery cover is an important component of the battery. It covers the top opening of the outer casing and forms a cavity with the outer casing to house the battery cells. The battery cover includes a top cover sheet, a lower plastic part below the top cover sheet, and a terminal post passing through the top cover sheet. The terminal post also passes through the lower plastic part, and the terminal post and the lower plastic part are fixed to each other.
[0003] In the prior art, the bottom of the pole has a connecting piece, and the bottom of the lower plastic part forms an enclosing area. When the pole passes through the top cover and the lower plastic part, the connecting piece is placed in the enclosing area. However, during the installation of the pole, when the connecting piece is embedded in the enclosing area, the air in the enclosing area is compressed, forming a large pressure. The pressure reacts on the connecting piece, making it difficult for the connecting piece to be embedded in the enclosing area, which makes it difficult to install the lower plastic part and the pole. Utility Model Content
[0004] The purpose of this utility model is to provide a ventilated structure for installing the lower plastic part and the pole post, which aims to solve the problem of difficulty in installing the lower plastic part and the pole post in the prior art.
[0005] This utility model is implemented as follows: a ventilated structure is installed between the lower plastic part and the pole post, including a top cover, a lower plastic part, and a pole post. The pole post passes through the lower plastic part and the top cover. A connecting piece is formed at the bottom of the pole post. An enclosing area is formed at the bottom of the lower plastic part. The connecting piece is embedded in the enclosing area. A ventilated gap is formed on the outer periphery of the enclosing area. The ventilated gap communicates with the enclosing area.
[0006] Furthermore, a plurality of ventilation openings are formed on the outer periphery of the enclosed area, and the plurality of ventilation openings are arranged at intervals along the circumference of the enclosed area.
[0007] Furthermore, the bottom of the lower plastic part is provided with a ring-shaped enclosure wall, which surrounds and forms the enclosure area, and the ventilation opening is formed on the enclosure wall.
[0008] Furthermore, the inner side of the enclosing wall has an annularly arranged inner ring wall, which abuts against the outer periphery of the connecting piece.
[0009] Furthermore, the inner annular wall is recessed outward to form the ventilation gap.
[0010] Furthermore, the ventilation notch is arranged to extend along the height direction of the inner annular wall.
[0011] Furthermore, the depth of the ventilation gap gradually increases along the inner annular wall from top to bottom.
[0012] Furthermore, the inner ring wall has two straight strips arranged in a straight strip shape, and there is an inclined edge between the two straight strips, with the two ends of the inclined edge respectively connecting to the two straight strips.
[0013] Furthermore, the bottom of the connecting piece has a bottom surface that is recessed into the enclosing area, and there is a gap in height between the bottom surface and the bottom of the enclosing wall.
[0014] Compared with the prior art, the ventilated structure for installing the lower plastic part and the pole provided by this utility model allows the pole to pass through the lower plastic part and the top cover plate during the installation process, and the connecting piece is embedded in the enclosed area. During the process of the connecting piece being embedded in the enclosed area, the air in the enclosed area can be discharged through the vent, avoiding the air compression in the enclosed area from forming a large pressure, which facilitates the installation of the pole.
[0015] This utility model also provides a battery cover, including the aforementioned lower plastic part and the ventilated structure for mounting the terminal post.
[0016] Compared with the prior art, the battery cover provided by this utility model can quickly expel air from the enclosed area through the ventilation gap during the installation of the terminal post, avoiding the air in the enclosed area being compressed, thereby facilitating the installation of the terminal post, greatly improving the installation efficiency of the terminal post, and improving the quality and yield of the battery cover. Attached Figure Description
[0017] Figure 1 This is a partial schematic diagram of the lower plastic part provided by this utility model;
[0018] Figure 2 This is a partial cross-sectional schematic diagram of the ventilation structure for the lower plastic part and the pole post provided by this utility model. Detailed Implementation
[0019] 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.
[0020] The implementation of this utility model will be described in detail below with reference to specific embodiments.
[0021] 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.
[0022] Reference Figure 1-2 The image shown is a preferred embodiment of the present invention.
[0023] The lower plastic part and the pole are fitted with a ventilated structure, including a top cover plate 300, a lower plastic part 100 and a pole 200. The pole 200 passes through the lower plastic part 100 and the top cover plate 300. A connecting piece 202 is formed at the bottom of the pole 200. An enclosing area is formed at the bottom of the lower plastic part 100. The connecting piece 202 is embedded in the enclosing area. A ventilated notch 102 is formed on the outer periphery of the enclosing area. The ventilated notch 102 communicates with the enclosing area.
[0024] The aforementioned lower plastic part and pole installation ventilated structure allows the pole 200 to pass through the lower plastic part 100 and the top cover plate 300 during the installation of the pole 200, with the connecting piece 202 embedded in the enclosed area. During the process of the connecting piece 202 being embedded in the enclosed area, the air in the enclosed area can be discharged through the vent 102, avoiding the air compression in the enclosed area from forming a large pressure, thus facilitating the installation of the pole 200.
[0025] In this embodiment, a plurality of the above-mentioned ventilation gaps 102 are formed on the outer periphery of the enclosed area. The plurality of ventilation gaps 102 are arranged at intervals along the circumference of the enclosed area. In this way, during the installation of the pole post 200, the air in the enclosed area can be discharged through the plurality of ventilation gaps 102, which can realize the rapid discharge of air and facilitate the installation of the pole post 200.
[0026] In this embodiment, the bottom of the lower plastic part 100 is provided with a ring-shaped enclosure wall 101, which surrounds and forms the above-mentioned enclosure area. A ventilation opening 102 is formed on the enclosure wall 101, which facilitates the formation of the ventilation opening 102.
[0027] In this embodiment, the inner side of the enclosing wall 101 has an inner annular wall 103 arranged in a ring. The inner annular wall 103 abuts against the outer periphery of the connecting piece 202. In this way, when the connecting piece 202 is placed in the enclosing area, the inner annular wall 103 can restrict the outer periphery of the connecting piece 202 and limit the connecting piece 202.
[0028] In this embodiment, the outer periphery of the connecting piece 202 and the inner ring wall 103 are non-circular. When the inner ring wall 103 abuts against the outer periphery of the connecting piece 202, the connecting piece 202 is relatively fixed, thereby increasing the torque value of the connecting piece 202, which in turn increases the torque value of the pole post 200, thus preventing the pole post 200 from rotating.
[0029] In this embodiment, the inner annular wall 103 is recessed outward to form the aforementioned ventilation gap 102. This facilitates the formation of the ventilation gap 102, and the ventilation gap 102 can be directly connected to the enclosed area.
[0030] In this embodiment, the ventilation gap 102 extends along the height direction of the inner ring wall 103. In this way, the ventilation gap 102 is connected to the enclosed area along the height direction of the inner ring wall 103. During the entire process of the connecting piece 202 being embedded into the enclosed area, the ventilation gap 102 can fully exhaust air.
[0031] In this embodiment, the depth of the vent 102 gradually increases from top to bottom along the inner annular wall 103. This allows the air in the enclosed area to be discharged through the vent 102 as the connecting piece 202 is embedded into the enclosed area.
[0032] In this embodiment, the inner annular wall 103 has two straight strips arranged in a straight strip shape, and an inclined edge 1031 is provided between the two straight strips. The two ends of the inclined edge 1031 are respectively connected to the two straight strips. This facilitates the matching and positioning between the connecting piece 202 and the enclosing wall 101, and further improves the torque value of the pole post 200.
[0033] In this embodiment, the bottom of the connecting piece 202 has a bottom surface 2021, which is embedded in the enclosing area. There is a gap in height between the bottom surface 2021 and the bottom of the enclosing wall 101. In this way, during the riveting of the top cover piece 300, the enclosing wall 101 abuts against the fixture, and the connecting piece 202 is suspended, thereby preventing the pole piece 200 from being squeezed and deformed.
[0034] This embodiment also provides a battery cover, including the aforementioned lower plastic part and the ventilated structure for mounting the terminal post 200. During the installation of the terminal post 200, the air in the enclosed area can be quickly discharged through the vent 102, avoiding the air in the enclosed area from being compressed, thereby facilitating the installation of the terminal post 200, greatly improving the installation efficiency of the terminal post 200, and improving the quality and yield of the battery cover.
[0035] 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 ventilated structure for mounting the lower plastic part and the pole post, characterized in that, It includes a top cover, a lower plastic part, and an electrode post. The electrode post passes through the lower plastic part and the top cover. A connecting piece is formed at the bottom of the electrode post. An enclosing area is formed at the bottom of the lower plastic part. The connecting piece is embedded in the enclosing area. A vent is formed on the outer periphery of the enclosing area. The vent is connected to the enclosing area.
2. The ventilated structure for mounting the lower plastic part and the pole post as described in claim 1, characterized in that, The outer periphery of the enclosed area has a plurality of ventilation openings, which are arranged at intervals along the circumference of the enclosed area.
3. The ventilated structure for mounting the lower plastic part and the pole post as described in claim 1 or 2, characterized in that, The bottom of the lower plastic part is provided with a ring-shaped enclosure wall, which surrounds and forms the enclosure area, and the ventilation opening is formed on the enclosure wall.
4. The ventilated structure for mounting the lower plastic part and the pole post as described in claim 3, characterized in that, The inner side of the enclosing wall has an inner ring wall arranged in a ring, which abuts against the outer periphery of the connecting piece.
5. The ventilated structure for mounting the lower plastic part and the pole post as described in claim 4, characterized in that, The inner annular wall is recessed outward to form the ventilation gap.
6. The ventilated structure for mounting the lower plastic part and the pole post as described in claim 5, characterized in that, The ventilation gap extends along the height direction of the inner ring wall.
7. The ventilated structure for mounting the lower plastic part and the pole post as described in claim 6, characterized in that, The depth of the ventilation gap gradually increases along the inner annular wall from top to bottom.
8. The ventilated structure for mounting the lower plastic part and the pole post as described in claim 4, characterized in that, The inner ring wall has two straight strips arranged in a straight strip shape, and there is an inclined edge between the two straight strips. The two ends of the inclined edge are respectively connected to the two straight strips.
9. The ventilated structure for mounting the lower plastic part and the pole post as described in claim 1 or 2, characterized in that, The bottom of the connecting piece has a bottom surface that is recessed into the enclosing area, and there is a gap in height between the bottom surface and the bottom of the enclosing wall.
10. A battery cover, characterized in that, Includes the lower plastic part and the ventilated structure for mounting the pole as described in any one of claims 1 to 9.