Pole structure of injection molding cover plate

Abstract

The utility model discloses an injection molding cover plate pole column structure which comprises a cover plate, pole column holes and a sealing ring, the pole column holes are formed in the two sides of the top face of the cover plate, an installation table is arranged on the top face of each pole column hole, the diameter of each installation table is larger than that of each pole column hole, the bottom face of the sealing ring is attached to the top face of each installation table, the sealing ring and the pole column holes are coaxially arranged, and the sealing ring and the pole column holes are coaxially arranged. The utility model provides an injection molding cover plate pole structure, which comprises a sealing ring, a locking plate in compression joint with the sealing ring is mounted above the sealing ring, and the locking plate is in bolt mounting connection with the cover plate through screw hole plates on two sides, and solves the problems that an existing sealing ring structure is abraded after being used regularly, and the sealing safety problem is caused if the existing sealing ring structure is not replaced in time.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to an injection-molded cover plate pole structure. Background Art

[0002] Battery injection molded cover is a precision structural part for lithium batteries. It has an important impact on the safety, airtightness and energy efficiency of the battery. The battery cover can be made of a variety of materials, such as plastic, etc. They are usually used in the field of new energy, especially in power batteries. These covers play a protective and sealing role in the structure of lithium batteries to ensure the safe operation of the battery. Injection molding top cover is a common battery cover manufacturing method. Its main advantages include low production cost and high assembly efficiency. This structure eliminates traditional welding, spring assembly and other processes, and improves production efficiency.

[0003] In the actual use of the cover, since the pole hole needs to be used in conjunction with a sealing ring to close the gap after the pole is installed, although the traditional annular sealing ring can perform sealing work, it will also wear out after regular use. If it is not replaced in time, there will be sealing safety problems.

[0004] Therefore, it is necessary to provide an injection molded cover plate pole structure to solve the above technical problems. Utility Model Content

[0005] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides an injection molded cover plate pole structure to solve the problem that the existing sealing ring structure will wear out after regular use, and if it is not replaced in time, there will be sealing safety problems.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] An injection molded cover plate pole structure, comprising: a cover plate, a pole hole, and a sealing ring;

[0008] Pole holes are provided on both sides of the top surface of the cover plate, and a mounting platform is provided on the top surface of the pole hole. The diameter of the mounting platform is larger than the diameter of the pole hole. The bottom surface of the sealing ring is in contact with the top surface of the mounting platform, and the sealing ring is coaxially arranged with the pole hole. A locking plate crimped therewith is installed above the sealing ring, and the locking plate is bolted to the cover plate through screw hole plates on both sides, and a hole with the same diameter as the pole hole is provided in the middle of the locking plate.

[0009] In one embodiment, a positioning groove is formed on the top surface of the sealing ring, and the positioning groove is a circular groove structure.

[0010] In one embodiment, a pressure rod is installed on the bottom surface of the locking plate, and the bottom of the pressure rod is connected to the pressure plate. The pressure plate is an arc-shaped structure as a whole, and its curvature is consistent with the curvature of the inner wall of the positioning groove. The width of the pressure plate is consistent with the inner width of the positioning groove. There are four pressure rods and pressure plates arranged in a circular array, and the top surface of the locking plate is provided with mounting holes, and there are six mounting holes in a circular array.

[0011] In one embodiment, a threaded groove is formed on the inner wall surface of the mounting hole, and extrusion rods are installed in the mounting hole. The number of the extrusion rods is consistent with the number of the mounting holes.

[0012] In one embodiment, the extrusion rod is composed of a rod body, an end head, and an extrusion plate. The upper part of the rod body is provided with an external thread that engages with the thread groove of the mounting hole. The top of the rod body is installed with an end head. The bottom outer surface of the rod body is installed with an extrusion plate. Two extrusion plates are provided, and the extrusion plate as a whole is a wavy elastic sheet structure.

[0013] The beneficial effects of the utility model are as follows:

[0014] (1) The utility model places the locking plate above the pole hole and presses it downward, inserts the fixing bolt into the screw hole plate, installs the locking plate and the top surface of the cover plate, and simultaneously makes the pressure plate enter the positioning groove of the sealing ring to press and limit the sealing ring, and at the same time provides expansion support for the inner wall surface of the positioning groove.

[0015] (2) After the locking plate is installed, the extrusion plate is rotated forty-five degrees by twisting the end head, so that the end of the extrusion plate and the inner wall of the positioning groove are interfered with and squeezed, thereby improving the sealing performance of the sealing ring and making it fit more closely with the pole. At the same time, the sealing ring is limited to improve the stability of the sealing ring during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the overall structure diagram of the utility model;

[0017] Figure 2 It is a detailed diagram of each component of the utility model after being disassembled;

[0018] Figure 3 This is a detail diagram of the locking plate of the utility model;

[0019] Figure 4 This is a detailed diagram of the strengthening mechanism of the utility model.

[0020] Among them, the names corresponding to the figure marks are: cover plate 1, pole hole 2, mounting platform 21, locking plate 3, pressure rod 31, pressure plate 32, mounting hole 33, screw hole plate 4, sealing ring 5, positioning groove 51, extrusion rod 6, rod body 61, end 62, extrusion plate 63. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with the accompanying drawings and embodiments. The present invention includes but is not limited to the following embodiments.

[0022] like Figure 1-Figure 2 As shown, the utility model provides an injection molded cover plate pole structure, comprising: a cover plate 1, a pole hole 2, a locking plate 3, a screw hole plate 4, and a sealing ring 5;

[0023] like Figure 1-Figure 2 As shown, pole holes 2 are provided on both sides of the top surface of the cover plate 1, and a mounting platform 21 is provided on the top surface of the pole hole 2. The diameter of the mounting platform 21 is larger than the diameter of the pole hole 2. The bottom surface of the sealing ring 5 fits the top surface of the mounting platform 21. The sealing ring 5 is coaxially arranged with the pole hole 2. A locking plate 3 crimped thereto is installed above the sealing ring 5. The locking plate 3 is bolted to the cover plate 1 through the screw hole plates 4 on both sides, and a hole with the same diameter as the pole hole 2 is provided in the middle of the locking plate 3.

[0024] Preferably, in one embodiment, Figure 2-Figure 3 As shown, a positioning groove 51 is formed on the top surface of the sealing ring 5 , and the positioning groove 51 is a circular groove structure.

[0025] Preferably, in one embodiment, Figure 3 As shown, a pressure rod 31 is installed on the bottom surface of the locking plate 3, and the bottom of the pressure rod 31 is installed and connected to the pressure plate 32. The pressure plate 32 is an arc-shaped structure as a whole, and its curvature is consistent with the curvature of the inner wall of the positioning groove 51. The width of the pressure plate 32 is consistent with the inner width of the positioning groove 51. The pressure rod 31 and the pressure plate 32 are arranged in a circular array, and there are four of them. The top surface of the locking plate 3 is provided with mounting holes 33, and there are six mounting holes 33 in a circular array. During operation, the locking plate 3 is placed above the pole hole 2 and pressed downward to insert the fixing bolts into the screw hole plate 4, so that the locking plate 3 is installed with the top surface of the cover plate 1, and the pressure plate 32 is simultaneously entered into the positioning groove 51 of the sealing ring 5 to press and limit the sealing ring 5, and at the same time provide expansion support for the inner wall of the positioning groove 51.

[0026] Preferably, in one embodiment, Figure 3 As shown, a threaded groove is formed on the inner wall surface of the mounting hole 33 , and an extrusion rod 6 is installed in the mounting hole 33 , and the number of the extrusion rods 6 is consistent with the number of the mounting holes 33 .

[0027] Preferably, in one embodiment, Figure 4As shown, the extrusion rod 6 is composed of a rod body 61, an end head 62, and an extrusion plate 63. The upper part of the rod body 61 is provided with an external thread that meshes with the thread groove of the mounting hole 33. The top of the rod body 61 is installed with an end head 62, and the bottom outer peripheral surface of the rod body 61 is installed with an extrusion plate 63. Two extrusion plates 63 are provided, and the extrusion plate 63 is a wavy elastic sheet structure as a whole. During operation, after the locking plate 3 is installed, the end head 62 is twisted to rotate the extrusion plate 63 forty-five degrees, so that the end of the extrusion plate 63 and the inner wall of the positioning groove 51 are interfered and squeezed, thereby improving the sealing performance of the sealing ring 5 and making it fit more closely with the pole. At the same time, the sealing ring 5 is limited to improve the stability of the use of the sealing ring 5.

[0028] Working principle of this utility model:

[0029] During operation, the locking plate 3 is placed above the pole hole 2 and pressed downward to insert the fixing bolt into the screw hole plate 4, so that the locking plate 3 is installed with the top surface of the cover plate 1, and the pressing plate 32 is simultaneously entered into the positioning groove 51 of the sealing ring 5 to compress and limit the sealing ring 5, and at the same time provide expansion support for the inner wall surface of the positioning groove 51. After the locking plate 3 is installed, the extrusion plate 63 is rotated forty-five degrees by twisting the end head 62, so that the end of the extrusion plate 63 and the inner wall of the positioning groove 51 are interfered and squeezed, thereby improving the sealing performance of the sealing ring 5 and making it fit more closely with the pole. At the same time, the sealing ring 5 is limited to improve the stability of the use of the sealing ring 5.

[0030] The above embodiment is only one of the preferred implementation modes of the present utility model and should not be used to limit the protection scope of the present utility model. Any changes or modifications that are made to the main design concept and spirit of the present utility model without any substantive significance, as long as the technical problems solved are still consistent with the present utility model, should be included in the protection scope of the present utility model.

Claims

1. An injection molded cover plate pole structure, characterized in that: include: Cover plate, pole hole, sealing ring; Pole holes are provided on both sides of the top surface of the cover plate, and a mounting platform is provided on the top surface of the pole hole. The diameter of the mounting platform is larger than the diameter of the pole hole. The bottom surface of the sealing ring is in contact with the top surface of the mounting platform, and the sealing ring is coaxially arranged with the pole hole. A locking plate crimped therewith is installed above the sealing ring, and the locking plate is bolted to the cover plate through screw hole plates on both sides, and a hole with the same diameter as the pole hole is provided in the middle of the locking plate.

2. The injection molded cover plate pole structure according to claim 1, characterized in that: A positioning groove is formed on the top surface of the sealing ring, and the positioning groove is a circular groove structure.

3. The injection molded cover plate pole structure according to claim 2, characterized in that: A pressure rod is installed on the bottom surface of the locking plate, and the bottom of the pressure rod is connected to the pressure plate. The pressure plate is an arc-shaped structure as a whole, and its curvature is consistent with the curvature of the inner wall of the positioning groove. The width of the pressure plate is consistent with the inner width of the positioning groove. There are four pressure rods and pressure plates arranged in a circular array, and the top surface of the locking plate is provided with mounting holes, and there are six mounting holes in a circular array.

4. The injection molded cover plate pole structure according to claim 3, characterized in that: The inner wall surface of the mounting hole is provided with a threaded groove, and extrusion rods are installed in the mounting hole, and the number of the extrusion rods is consistent with the number of the mounting holes.

5. The injection molded cover plate pole structure according to claim 4, characterized in that: The extrusion rod is composed of a rod body, an end head, and an extrusion plate. The upper part of the rod body is provided with an external thread that engages with the thread groove of the mounting hole. The top of the rod body is installed with an end head. The bottom outer surface of the rod body is installed with an extrusion plate. Two extrusion plates are provided, and the extrusion plates as a whole are a wavy elastic sheet structure.

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