Battery cap structure of steel shell aqueous zinc ion battery

Abstract

The utility model relates to a battery cover cap structure of a steel shell water system zinc ion battery, which belongs to the field of battery cover caps and comprises a cover cap body and a sealing ring fixedly connected to the outer side of the cover cap body, and a pressure relief structure used for pressure relief is arranged on the inner side of the cover cap body. The pressure relief structure comprises an elastic telescopic rod fixedly connected to the inner top wall of the cap body, a connecting plate fixedly connected to the bottom end of a piston rod of the elastic telescopic rod, a first sealing block fixedly connected to the bottom of the connecting plate, connecting blocks fixedly connected to the left side and the right side of the connecting plate correspondingly, and a mounting plate fixedly connected to the other sides of the connecting blocks. The mounting shaft is fixedly connected to the upper surface of the mounting plate; and the second sealing block is fixedly connected to the top end of the mounting shaft. According to the battery cap structure of the steel-shell aqueous zinc ion battery, by optimizing the pressure relief design, the pressure can be effectively released in time when the internal pressure of the battery is abnormal, and the risk of expansion, fracture or explosion of the battery is remarkably reduced.

Description

Technical Field

[0001] The utility model relates to a battery cap structure of a steel shell aqueous zinc ion battery, belonging to the field of battery caps. Background Art

[0002] With the continuous advancement of science and technology, battery technology is also developing rapidly. Aqueous zinc-ion batteries, as an emerging battery technology, have attracted widespread attention due to their high energy density, environmental protection, and low cost. However, as battery performance improves, its safety performance also becomes particularly important.

[0003] The existing cap structure of aqueous zinc-ion batteries has the problem of non-pressure release in some cases, which has become a key factor restricting its further promotion and application. Non-pressure release means that the gas or pressure generated inside the battery cannot be effectively released through the cap, which may cause the pressure inside the battery to continue to accumulate, eventually causing the battery to swell, rupture or even explode, seriously threatening the safety of users. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the utility model provides a battery cap structure for a steel shell aqueous zinc ion battery, which has the advantages of being able to release pressure to ensure safe use.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose of being able to release pressure and thus ensure safe use, the utility model provides the following technical solutions: a battery cap structure for a steel-shell aqueous zinc-ion battery, comprising a cap body and a sealing ring fixedly connected to the outer side of the cap body, wherein a pressure relief structure for pressure relief is provided on the inner side of the cap body;

[0008] The pressure relief structure includes an elastic telescopic rod fixedly connected to the top wall of the cap body, a connecting plate fixedly connected to the bottom end of the piston rod of the elastic telescopic rod, a first sealing block fixedly connected to the bottom of the connecting plate, connecting blocks fixedly connected to the left and right sides of the connecting plate respectively, a mounting plate fixedly connected to the other side of the connecting block, a mounting shaft fixedly connected to the upper surface of the mounting plate, and a second sealing block fixedly connected to the top end of the mounting shaft.

[0009] Furthermore, two support plates are fixedly connected between the inner top wall and the inner bottom wall of the cap body, and the two support plates are respectively located on the left and right sides of the elastic telescopic rod.

[0010] Furthermore, a plurality of through holes are provided on the inner side of the support plate, a sliding opening adapted to the connection block is provided on the inner side of the support plate, and the sliding opening is located below the through holes.

[0011] Furthermore, a guide rod is slidably connected to the inner side of the mounting plate, and the upper and lower ends of the left guide rod are bent to the left and fixedly connected to the inner left wall of the cap body, and the upper and lower ends of the right guide rod are bent to the right and fixedly connected to the inner right wall of the cap body.

[0012] Furthermore, the number of the mounting shafts is four, and the front side and the back side of the top of the left mounting plate are both fixedly connected with mounting shafts, and the front side and the back side of the top of the right mounting plate are both fixedly connected with mounting shafts.

[0013] Furthermore, an air inlet adapted to the first sealing block is provided at the bottom of the cap body, and four pressure relief ports adapted to the second sealing block are provided on the upper surface of the cap body.

[0014] Furthermore, a reinforcement ring is fixedly connected to the upper surface of the cap body, and the pressure relief port is located on the inner side of the reinforcement ring.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a battery cap structure for a steel shell aqueous zinc ion battery, which has the following beneficial effects:

[0017] The battery cap structure of the steel-shell aqueous zinc-ion battery, through optimized pressure relief design, can release pressure promptly and effectively when the internal pressure of the battery is abnormal, significantly reducing the risk of battery expansion, rupture or explosion, thereby greatly improving the safety performance of the battery. The effective pressure relief mechanism can prevent the internal part of the battery from being damaged due to excessive pressure, protect the internal structure of the battery from damage, and thus extend the service life of the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a three-dimensional diagram of the cap body in the structure of the utility model;

[0020] Figure 3 It is a front schematic diagram of the utility model.

[0021] In the figure: 1. cap body; 2. sealing ring; 3. elastic telescopic rod; 4. connecting plate; 5. first sealing block; 6. connecting block; 7. mounting plate; 8. mounting shaft; 9. second sealing block; 10. supporting plate; 11. guide rod; 12. reinforcing ring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-3 A battery cap structure of a steel shell aqueous zinc ion battery comprises a cap body 1 and a sealing ring 2 fixedly connected to the outer side of the cap body 1, and a pressure relief structure for pressure relief is provided on the inner side of the cap body 1.

[0024] like Figure 1 As shown, the pressure relief structure includes an elastic telescopic rod 3 fixedly connected to the inner top wall of the cap body 1, a connecting plate 4 fixedly connected to the bottom end of the piston rod of the elastic telescopic rod 3, a first sealing block 5 fixedly connected to the bottom of the connecting plate 4, connecting blocks 6 fixedly connected to the left and right sides of the connecting plate 4 respectively, a mounting plate 7 fixedly connected to the other side of the connecting block 6, a mounting shaft 8 fixedly connected to the upper surface of the mounting plate 7, and a second sealing block 9 fixedly connected to the top of the mounting shaft 8.

[0025] It should be noted that two support plates 10 are fixedly connected between the inner top wall and the inner bottom wall of the cap body 1, and the two support plates 10 are respectively located on the left and right sides of the elastic telescopic rod 3. A plurality of through holes are opened on the inner side of the support plate 10, and a sliding opening adapted to the connecting block 6 is opened on the inner side of the support plate 10, and the sliding opening is located below the through hole.

[0026] A guide rod 11 is slidably connected to the inner side of the mounting plate 7, and the upper and lower ends of the left guide rod 11 are bent to the left and fixedly connected to the inner left wall of the cap body 1, and the upper and lower ends of the right guide rod 11 are bent to the right and fixedly connected to the inner right wall of the cap body 1.

[0027] There are four mounting shafts 8 , and the front and back sides of the top of the left mounting plate 7 are both fixedly connected with the mounting shafts 8 , and the front and back sides of the top of the right mounting plate 7 are both fixedly connected with the mounting shafts 8 .

[0028] An air inlet compatible with the first sealing block 5 is opened at the bottom of the cap body 1, and four pressure relief ports compatible with the second sealing block 9 are opened on the upper surface of the cap body 1. A reinforcement ring 12 is fixedly connected to the upper surface of the cap body 1, and the pressure relief ports are located on the inner side of the reinforcement ring 12.

[0029] In addition, the provision of the reinforcement ring 12 can significantly increase the structural strength of the cap, making it more resistant to external impact and extrusion, thereby improving the battery's resistance to drop and pressure. During the use of the battery, changes in internal pressure or the action of external forces may cause the cap to deform. The addition of the reinforcement ring 12 can effectively reduce the possibility of such deformation and maintain the shape of the cap stable. In addition, the design of the reinforcement ring 12 can also serve as an aesthetic element to make the battery look more refined. At the same time, it can also serve as an identification area for the brand or model, which is convenient for users to identify and remember.

[0030] The working principle of the above embodiment is:

[0031] When the internal pressure of the battery is normal, the first sealing block 5 tightly seals the air inlet at the bottom of the cap body 1, and the four second sealing blocks 9 also tightly seal the four pressure relief ports respectively to ensure the sealing inside the battery. When the internal pressure of the battery rises abnormally, this pressure first acts on the structure inside the cap body 1. Due to the increase in internal pressure, the elastic telescopic rod 3 is subjected to upward pressure and begins to compress. During the compression process of the elastic telescopic rod 3, its piston rod drives the connecting plate 4 and its auxiliary structure to move upward. As the connecting plate 4 moves upward, the first sealing block 5 gradually leaves the air inlet, allowing the high-pressure gas inside the battery to enter the space inside the cap body 1.

[0032] At the same time, the mounting plate 7 moves upward steadily along the guide rod 11 to ensure accuracy and stability during the movement. When the internal pressure reaches a certain level, the mounting plate 7 pushes the second sealing block 9 away from the pressure relief port through the mounting shaft 8, thereby forming an open channel, allowing high-pressure gas to be quickly discharged through the pressure relief port, thereby achieving rapid pressure relief inside the battery. During the entire pressure relief process, the reinforcement ring 12 not only enhances the structural strength of the cap body 1, but also ensures the integrity of the pressure relief port under extreme pressure, thereby preventing the cap from being deformed or ruptured due to excessive pressure.

[0033] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A battery cap structure for a steel-shell aqueous zinc-ion battery, comprising a cap body (1) and a sealing ring (2) fixedly connected to the outer side of the cap body (1), characterized in that: A pressure relief structure for pressure relief is provided on the inner side of the cap body (1); The pressure relief structure comprises an elastic telescopic rod (3) fixedly connected to the inner top wall of the cap body (1), a connecting plate (4) fixedly connected to the bottom end of the piston rod of the elastic telescopic rod (3), a first sealing block (5) fixedly connected to the bottom of the connecting plate (4), connecting blocks (6) respectively fixedly connected to the left and right sides of the connecting plate (4), a mounting plate (7) fixedly connected to the other side of the connecting block (6), a mounting shaft (8) fixedly connected to the upper surface of the mounting plate (7), and a second sealing block (9) fixedly connected to the top end of the mounting shaft (8).

2. The battery cap structure of a steel shell aqueous zinc ion battery according to claim 1, characterized in that: Two support plates (10) are fixedly connected between the inner top wall and the inner bottom wall of the cap body (1), and the two support plates (10) are respectively located on the left and right sides of the elastic telescopic rod (3).

3. The battery cap structure of a steel shell aqueous zinc ion battery according to claim 2, characterized in that: A plurality of through holes are provided on the inner side of the support plate (10), and a sliding opening adapted to the connection block (6) is provided on the inner side of the support plate (10), and the sliding opening is located below the through holes.

4. The battery cap structure of a steel shell aqueous zinc ion battery according to claim 1, characterized in that: A guide rod (11) is slidably connected to the inner side of the mounting plate (7), and the upper and lower ends of the left guide rod (11) are bent to the left and fixedly connected to the inner left side wall of the cap body (1), and the upper and lower ends of the right guide rod (11) are bent to the right and fixedly connected to the inner right side wall of the cap body (1).

5. The battery cap structure of a steel shell aqueous zinc ion battery according to claim 1, characterized in that: The number of the mounting shafts (8) is four, and the front and back sides of the top of the left mounting plate (7) are both fixedly connected with the mounting shafts (8), and the front and back sides of the top of the right mounting plate (7) are both fixedly connected with the mounting shafts (8).

6. The battery cap structure of a steel shell aqueous zinc ion battery according to claim 1, characterized in that: The bottom of the cap body (1) is provided with an air inlet matched with the first sealing block (5), and the upper surface of the cap body (1) is provided with four pressure relief ports matched with the second sealing block (9).

7. The battery cap structure of a steel shell aqueous zinc ion battery according to claim 1, characterized in that: A reinforcement ring (12) is fixedly connected to the upper surface of the cap body (1), and the pressure relief port is located on the inner side of the reinforcement ring (12).

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