Upper cover structure of storage battery

Abstract

The utility model discloses an upper cover structure of a storage battery, which relates to the technical field of upper covers of storage batteries and comprises an upper cover body, a plurality of liquid adding holes which are transversely arranged at intervals are mounted on a boss on the upper surface of the upper cover body, external threads are arranged on the outer walls of the liquid adding holes, a sealing protective cover is mounted above the liquid adding holes, and the sealing protective cover is arranged on the upper surface of the upper cover body. An inner thread is arranged on the inner wall of the sealing protection cover, a sealing plug is installed in the sealing protection cover, a limiting assembly used for limiting rotation of the sealing protection cover is installed on the outer wall of the sealing protection cover, and a reinforcing frame is installed at the front end of a boss on the upper surface of the upper cover body. The reinforcing frame comprises a plurality of first reinforcing ribs which are transversely arranged at intervals, and two sets of second reinforcing ribs which are arranged front and back at intervals are arranged between the first reinforcing ribs. The problems that the distribution position of reinforcing ribs of an existing upper cover is prone to change of the position of a liquid adding hole, and the sealing protection performance of the liquid adding hole is insufficient are solved.

Description

Technical Field

[0001] This utility model relates to the field of battery cover technology, specifically a battery cover structure. Background Technology

[0002] A storage battery is a device that converts chemical energy into electrical energy. It is a type of rechargeable secondary battery. The battery cover is an important component of the storage battery. Its main functions include protecting the internal electrodes and electrolytes and preventing external substances from entering the storage battery and causing damage or short circuits.

[0003] For example, announcement number CN213989017U, entitled "A Battery Cover Structure", includes a cover base surface. The cover base surface is provided with two poles, a boss and multiple filling holes. The cover base surface is stepped. The two poles are respectively provided at the two corners of the end of the cover base surface, and the poles are flush with the cover base surface. The boss is provided on the cover base surface and protrudes from the base surface. The multiple filling holes are arranged in a matrix on the boss. Multiple rectangular grooves are opened on the boss, and a reinforcing rib is provided in the middle of each rectangular groove. Multiple supporting ribs are arranged on both sides of the reinforcing rib along the length direction.

[0004] The existing battery cover has the following defects in use: 1. Although the cover has the strength of the cover body improved by reinforcing ribs, the reinforcing ribs separate the original position of the filling hole, change the filling position, and reduce the adaptability; 2. The filling hole of the cover does not have a sealing and protective structure, which can easily lead to the entry of dust and impurities and affect the safety of the battery. Therefore, it does not meet the current needs, and a new battery cover structure is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a battery cover structure to solve the problems mentioned in the background art, such as the distribution of the reinforcing ribs of the existing cover easily changing the location of the filling hole and the insufficient sealing and protection of the filling hole.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a battery cover structure, comprising: a cover body, wherein a plurality of horizontally spaced filling holes are installed on the protrusion on the upper surface of the cover body, external threads are provided on the outer wall of the filling holes, a sealing protective cover is installed above the filling holes, internal threads are provided on the inner wall of the sealing protective cover, a sealing plug is installed inside the sealing protective cover, a limiting component for limiting its rotation is installed on the outer wall of the sealing protective cover, and a reinforcing frame is installed at the front end of the protrusion on the upper surface of the cover body.

[0007] Preferably, the reinforcing frame includes a plurality of first reinforcing ribs arranged at horizontal intervals, and two sets of second reinforcing ribs arranged at front-to-back intervals are provided between the first reinforcing ribs.

[0008] Preferably, both the first reinforcing rib and the second reinforcing rib have an outer edge reinforcing rib at their ends near the outer edge of the upper cover body, and the outer edge reinforcing rib is located at the outer edge of the side wall of the upper cover body.

[0009] Preferably, a pressure ring is provided on the outer wall of the sealing plug, and a sealing ring is provided below the pressure ring.

[0010] Preferably, the limiting component includes a bracket, a rotating shaft is disposed between the brackets, a retaining plate is disposed on the outer wall of the rotating shaft, and a rotating handle is disposed at one end of the rotating shaft.

[0011] Preferably, the limiting component further includes several locking blocks installed on the upper cover protrusion, and the outer wall of the locking block is provided with a locking groove, and the locking plate is rotatably inserted into the locking groove.

[0012] Preferably, a negative electrode post and a positive electrode post are respectively provided on both sides of the upper surface of the upper cover, and a vent hole is provided on the side of the protrusion on the upper surface of the upper cover.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) In this utility model, the liquid filling hole is rotated and combined with the internal thread of the sealing cover by the external thread, so that the sealing cover protects the liquid filling hole inside, thereby improving the sealing and protection of the hole. When the sealing cover and the liquid filling hole are combined, the sealing plug at the top of the sealing cover will be inserted into the liquid filling hole, thereby improving the sealing of the liquid filling hole.

[0015] (2) After the end of the sealing plug is inserted into the liquid filling hole for sealing, the pressure ring will restrict the insertion position and make the sealing ring on the lower surface of the pressure ring located between the pressure ring and the liquid filling hole, so that the sealing ring further seals the opening position of the liquid filling hole and improves the sealing protection.

[0016] (3) The first reinforcing rib and the second reinforcing rib are used to reinforce the front end of the boss of the upper cover. The reinforcing structure is located at the front end of the boss and does not affect the normal installation position of the liquid filling hole on the boss. The end of the reinforcing rib is equipped with an outer edge reinforcing rib. The outer edge reinforcing rib is located at the outer edge of the side wall of the upper cover and can effectively improve the strength of the side of the upper cover. The entire first reinforcing rib, the second reinforcing rib and the outer edge reinforcing rib are integrated into one piece, which effectively improves the strength of the reinforcing frame after assembly.

[0017] (4) After the sealing cover is closed with the liquid filling hole, the rotating shaft is rotated by the handle to insert the card plate into the card slot at the card block. The card slot and the card plate restrict the rotation of the sealing cover, making it more difficult for the sealing cover to detach from the liquid filling hole. Attached Figure Description

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

[0019] Figure 2 This is a schematic diagram of the overall structure of this utility model from another perspective;

[0020] Figure 3 This is a schematic diagram of the liquid filling hole structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the sealing protective cover and limiting component structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the sealing plug structure of this utility model;

[0023] Figure 6 This is a schematic diagram of the reinforced frame structure of this utility model;

[0024] In the diagram: 1. Upper cover; 101. Negative terminal; 102. Positive terminal; 103. Vent plug; 2. Reinforcing frame; 201. First reinforcing rib; 202. Second reinforcing rib; 203. Outer edge reinforcing rib; 3. Liquid filling hole; 301. External thread; 4. Sealing protective cover; 401. Internal thread; 402. Sealing plug; 403. Pressure ring; 404. Sealing ring; 5. Limiting assembly; 501. Bracket; 502. Rotating shaft; 503. Clamping plate; 504. Rotating handle; 505. Clamping block; 506. Clamping groove. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4This utility model provides an embodiment of a battery cover structure, comprising: a cover body 1, with a negative terminal post 101 and a positive terminal post 102 respectively disposed on both sides of the upper surface of the cover body 1; a vent hole 103 disposed on the side of the protrusion on the upper surface of the cover body 1; a plurality of horizontally spaced filling holes 3 mounted on the protrusion on the upper surface of the cover body 1; external threads 301 disposed on the outer wall of the filling holes 3; and a sealing protective cover 4 disposed above the filling holes 3, with internal threads 401 disposed on the inner wall of the sealing protective cover 4. The cover 4 has a sealing plug 402 installed inside, and the outer wall of the sealing cover 4 has a limiting component 5 for limiting its rotation. Specifically, the liquid filling hole 3 is rotated and combined with the internal thread 401 of the sealing cover 4 through the external thread 301, so that the sealing cover 4 protects the liquid filling hole 3 inside, improving the sealing and protection at that point. When the sealing cover 4 is combined with the liquid filling hole 3, the sealing plug 402 at the top of the sealing cover 4 will be inserted into the liquid filling hole 3, thereby improving the sealing at the liquid filling hole 3.

[0027] Furthermore, such as Figure 5 As shown, a pressure ring 403 is provided on the outer wall of the sealing plug 402, and a sealing ring 404 is provided below the pressure ring 403. After the end of the sealing plug 402 is inserted into the liquid filling hole 3 for sealing, the pressure ring 403 will restrict the insertion position and make the sealing ring 404 on the lower surface of the pressure ring 403 located between the pressure ring 403 and the liquid filling hole 3, so that the sealing ring 404 further seals the opening position of the liquid filling hole 3, thereby improving the sealing protection.

[0028] Please see Figure 6 A reinforcing frame 2 is installed at the front end of the boss on the upper surface of the upper cover 1. The reinforcing frame 2 includes several first reinforcing ribs 201 arranged laterally at intervals. Two sets of second reinforcing ribs 202 are arranged at intervals front and back between the first reinforcing ribs 201. The ends of the first reinforcing ribs 201 and the second reinforcing ribs 202 near the outer edge of the upper cover 1 are provided with outer edge reinforcing ribs 203. The outer edge reinforcing ribs 203 are located at the outer edge of the side wall of the upper cover 1. The first reinforcing ribs 201 and the second reinforcing ribs 202 are used to reinforce the front end of the boss of the upper cover 1. The reinforcing structure is located at the front end of the boss and does not affect the normal installation position of the liquid filling hole 3 on the boss. The ends of the reinforcing ribs are provided with outer edge reinforcing ribs 203. The outer edge reinforcing ribs 203 are located at the outer edge of the side wall of the upper cover 1, which can effectively improve the strength of the side of the upper cover 1. The entire first reinforcing rib 201, second reinforcing rib 202 and outer edge reinforcing rib 203 are integrated into one piece, which effectively improves the strength of the reinforcing frame 2 after assembly.

[0029] Please see Figure 2 , Figure 4The limiting component 5 includes a bracket 501, a rotating shaft 502 is arranged between the brackets 501, a locking plate 503 is arranged on the outer wall of the rotating shaft 502, and a rotating handle 504 is arranged at one end of the rotating shaft 502. The limiting component 5 also includes several locking blocks 505 installed on the protrusion of the upper cover 1. The outer wall of the locking block 505 is provided with a locking groove 506. The locking plate 503 is rotatably inserted into the locking groove 506. After the sealing protective cover 4 is rotated and closed with the liquid filling hole 3, the rotating shaft 502 is rotated by the rotating handle 504 to rotate the locking plate 503 into the locking groove 506 at the locking block 505. The locking groove 506 and the locking plate 503 restrict the rotation of the sealing protective cover 4, making it more difficult for the sealing protective cover 4 to detach from the liquid filling hole 3.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A structure of an upper cover of a storage battery comprising an upper cover body (1), characterized by: Multiple horizontally spaced liquid filling holes (3) are installed on the boss on the upper surface of the upper cover (1). External threads (301) are provided on the outer wall of the liquid filling hole (3). A sealing protective cover (4) is installed above the liquid filling hole (3). Internal threads (401) are provided on the inner wall of the sealing protective cover (4). A sealing plug (402) is installed inside the sealing protective cover (4). A limiting component (5) for limiting its rotation is installed on the outer wall of the sealing protective cover (4). A reinforcing frame (2) is installed at the front end of the boss on the upper surface of the upper cover (1).

2. The battery upper cover structure of claim 1, wherein: The reinforcing frame (2) includes a number of first reinforcing ribs (201) arranged laterally at intervals, and two sets of second reinforcing ribs (202) arranged front and back at intervals are provided between the first reinforcing ribs (201).

3. The battery upper cover structure of claim 2, wherein: Both the first reinforcing rib (201) and the second reinforcing rib (202) are provided with an outer edge reinforcing rib (203) at their ends near the outer edge of the upper cover (1). The outer edge reinforcing rib (203) is located at the outer edge of the side wall of the upper cover (1).

4. The battery upper cover structure of claim 1, wherein: A pressure ring (403) is provided on the outer wall of the sealing plug (402), and a sealing ring (404) is provided below the pressure ring (403).

5. The battery upper cover structure of claim 1, wherein: The limiting component (5) includes a bracket (501), a rotating shaft (502) is provided between the brackets (501), a clamping plate (503) is provided on the outer wall of the rotating shaft (502), and a rotating handle (504) is provided at one end of the rotating shaft (502).

6. The battery upper cover structure of claim 5, wherein: The limiting component (5) also includes several locking blocks (505) installed on the protrusion of the upper cover (1). The outer wall of the locking block (505) is provided with a locking groove (506), and the locking plate (503) is rotated and inserted into the locking groove (506).

7. The battery upper cover structure of claim 1, wherein: The upper cover (1) has a negative electrode post (101) and a positive electrode post (102) respectively on both sides of its upper surface, and a vent hole (103) is provided on the protrusion side of the upper surface of the upper cover (1).

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