Battery pole seal structure

Abstract

This utility model discloses a battery terminal sealing structure, including: a shell, and a positioning block disposed on the outer side of the shell, with a sealing cover plate connected to the upper side of the positioning block; characterized in that it further includes: an electrolyte storage tank disposed inside the shell, with a battery terminal disposed on the upper side of the electrolyte storage tank, a filter plate disposed on the upper side of the battery terminal, and a reflux groove formed on the outer side of the battery terminal. This battery terminal sealing structure incorporates an effective pressure relief protection structure within the device, making it less prone to safety accidents due to excessive pressure during use, preventing compromised device safety, improving device stability, and facilitating disassembly and electrolyte replenishment after use. This allows users to easily replenish the electrolyte when it decreases, extending the device's lifespan and providing better performance.

Description

Technical Field

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

[0002] The battery terminal sealing structure refers to the structure used to ensure a seal between the battery terminals and the battery cover. It mainly includes components such as sealing rings, sealant, and insulating materials. Its core function is to prevent electrolyte leakage and isolate external environmental contaminants from entering, thereby ensuring the internal airtightness of the battery and guaranteeing the safety, lifespan, and energy density of the battery module.

[0003] Authorized announcement number CN217280993U discloses a battery terminal sealing structure, relating to the field of storage batteries. The structure includes a battery body, an electrolyte storage tank fixedly installed within the inner cavity of the battery body, battery terminals installed in the electrolyte storage tank, with the tops of the battery terminals extending into the interior of a sealing cover. A sealing plug is installed on the top of the sealing cover relative to the two battery terminals. A return pipe is connected to the top of the electrolyte storage tank, with the bottom of the return pipe penetrating the inner wall of the electrolyte storage tank. The top of the return pipe is connected to the upper ends of the two battery terminals respectively. This device features a return groove at the connection between the sealing plug and the battery terminals. Compared to previous battery structures, the return groove allows leaked electrolyte to flow from the return groove into the return pipe and ultimately back into the electrolyte storage tank. This not only prevents electrolyte leakage but also effectively recovers the electrolyte, making it highly practical.

[0004] However, the existing battery terminal sealing structure does not have an effective pressure relief protection structure inside the device, which makes the device prone to safety accidents due to excessive pressure during use, thus affecting the safety of the device and reducing its stability.

[0005] Therefore, to address the aforementioned issues, there is an urgent need for innovative designs based on the existing battery terminal sealing structure. Utility Model Content

[0006] The purpose of this utility model is to provide a battery terminal sealing structure to solve the problem mentioned in the background art that the device does not have an effective pressure relief protection structure inside, which makes the device prone to safety accidents due to excessive pressure during use, thus affecting the safety of the device and reducing its stability.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a battery terminal sealing structure, comprising: a housing, and a positioning block disposed on the outer side of the housing, wherein a sealing cover is connected to the upper side of the positioning block;

[0008] Its characteristic is that it further includes:

[0009] An electrolyte storage tank is located inside the outer shell, and a battery terminal is provided on the upper side of the electrolyte storage tank. A filter plate is provided on the upper side of the battery terminal, and a reflux groove is provided on the outer side of the battery terminal.

[0010] An exhaust port is located inside the sealing cover, and a blocking block is installed on the upper side of the exhaust port. A second sealing ring is provided on the lower side of the blocking block, and an exhaust pipe is connected to the upper side of the blocking block. A guide block is provided on the outer side of the exhaust pipe, and a damper is nested in the middle of the exhaust pipe. A connecting component is provided on the outer side of the sealing cover, and a blocking component is provided on the upper side of the sealing cover.

[0011] In one possible implementation, the positioning block is engaged with the sealing cover, and the positioning block is symmetrically arranged about the central axis of the outer shell.

[0012] In one possible implementation, the second sealing ring is engaged with the plugging block, and the cross-section of the plugging block is trapezoidal.

[0013] In one possible implementation, the guide block and the block are slidably connected relative to each other, and the guide block is symmetrically arranged about the central axis of the exhaust pipe.

[0014] In one possible implementation, the connecting assembly includes an operating rod mounted on the outside of the sealing cover, with a first limiting rod connected to the upper side of the operating rod, a driving rod provided on the inner side of the operating rod, a driving disc mounted in the middle of the driving rod, a connecting block connected to the outer side of the driving rod, and a guide rod mounted on the outer side of the connecting block.

[0015] The first limiting rod is engaged with the operating rod, the operating rod is rotatably connected to the sealing cover plate, and the operating rod is meshed with the drive disc.

[0016] In one possible implementation, the drive rod is threadedly connected to the connecting block, with the threads at the front and rear ends of the drive rod being opposite to each other, and the connecting block is engaged with the housing.

[0017] In one possible implementation, the blocking assembly includes a positioning ring mounted on the upper side of the sealing cover, with a protective sleeve installed on the inner side of the positioning ring, a second limiting rod penetrating the outer side of the protective sleeve, and a third sealing ring provided on the lower side of the protective sleeve.

[0018] Compared with the prior art, the beneficial effects of this utility model are: the battery terminal sealing structure has an effective pressure relief protection structure inside the device, making it less likely to cause safety accidents due to excessive pressure during use, avoiding affecting the safety of the device, improving the stability of the device, and facilitating disassembly and electrolyte replenishment after use. This allows users to easily replenish the electrolyte when it decreases due to degradation, extending the device's service life and resulting in better performance, as detailed below:

[0019] 1. By using the operating lever and the drive lever to push the connecting block outward along the guide rod, the connecting block engages with the outer shell, thus limiting the sealing cover and the outer shell in series. At this time, the first limiting rod is pushed inward again, so that the first limiting rod engages with the sealing cover and the operating lever again. This makes it convenient for the user to replenish the electrolyte when the electrolyte inside the device deteriorates, thus improving the service life of the device.

[0020] 2. By using the plug block in conjunction with the second sealing ring to loosen the blockage on the upper opening of the exhaust port, the large amount of gas accumulated inside the device is discharged into the exhaust pipe along the gap between the plug block and the sealing cover plate due to the influence of air pressure, so as to achieve the pressure relief work of balancing the internal and external air pressure and avoid excessive air pressure from affecting the safety of the device.

[0021] 3. The protective sleeve is fixed to the upper side of the exhaust pipe by the second limiting rod and the positioning ring. The protective sleeve, together with the third sealing ring, covers and protects the upper opening of the exhaust pipe, preventing impurities on the outside of the device from clogging the upper opening of the exhaust pipe and improving the stability of the device. Attached Figure Description

[0022] Figure 1 This is a frontal cross-sectional view of the present invention.

[0023] Figure 2 This is a side view sectional structural diagram of the present invention;

[0024] Figure 3 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0025] Figure 4 This is a schematic cross-sectional view of the connection between the blockage block and the exhaust pipe of this utility model.

[0026] Figure 5 This is a schematic cross-sectional view of the connection between the protective sleeve and the positioning ring of this utility model.

[0027] In the diagram: 1. Outer shell; 2. Electrolyte storage tank; 3. Battery terminal; 4. Positioning block; 5. Sealing cover; 6. Operating lever; 7. First limit lever; 8. Drive lever; 9. Drive disc; 10. Connecting block; 11. Guide rod; 12. First sealing ring; 13. Filter plate; 14. Exhaust port; 15. Blocking block; 16. Second sealing ring; 17. Exhaust pipe; 18. Guide block; 19. Damper; 20. Positioning ring; 21. Protective sleeve; 22. Second limit lever; 23. Third sealing ring; 24. Return channel. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1-5 This utility model provides a technical solution: a battery terminal sealing structure, including a shell 1, an electrolyte storage cylinder 2, a battery terminal 3, a positioning block 4, a sealing cover 5, an operating rod 6, a first limiting rod 7, a driving rod 8, a driving disc 9, a connecting block 10, a guide rod 11, a first sealing ring 12, a filter 13, an exhaust port 14, a blocking block 15, a second sealing ring 16, an exhaust pipe 17, a guide block 18, a damper 19, a positioning ring 20, a protective sleeve 21, a second limiting rod 22, a third sealing ring 23, and a return groove 24.

[0030] Specifically, such as Figure 1 and Figure 2As shown, by installing the positioning block 4, which is set along the outer side of the outer shell 1, on the upper side of the outer shell 1, the positioning block 4 initially positions the sealing cover 5 on the upper side of the outer shell 1 due to the engaging connection structure between the positioning block 4 and the sealing cover 5. At this time, the sealing cover 5, together with the first sealing ring 12 set in its middle, seals the gap between the sealing cover 5 and the outer shell 1. At the same time, the first limiting rod 7 connected to the upper side of the operating rod 6 is pulled outward. Due to the engaging connection between the first limiting rod 7, the operating rod 6, and the sealing cover 5, the first limiting rod 7, which is pulled outward, releases its engagement with the operating rod 6 and the sealing cover 5. At this time, the operating rod 6, which is set on the outer side of the sealing cover 5, is rotated. Due to the meshing connection structure between the operating rod 6 and the drive disk 9, the operating rod 6 can effectively push the drive rod 8 and the drive disk 9 on the outer side of the sealing cover 5 during the rotation process. When the device is rotated to the side, the threaded connection between the drive rod 8 and the connecting block 10 allows the rotating drive rod 8 to effectively push the connecting block 10 connected to its outer side outward. Due to the sliding connection between the connecting block 10 and the guide rod 11, the connecting block 10 is guided and limited by the guide rod 11 during its outward displacement, preventing positional shift. Simultaneously, the engaging connection between the connecting block 10 and the outer shell 1 causes the outwardly displacing connecting block 10 to engage with the outer shell 1, thus limiting the sealing cover 5 and the outer shell 1 in series. Then, the first limiting rod 7 is pushed inward again, causing it to engage with the sealing cover 5 and the operating rod 6 again. This completes the rapid sealing installation of the device, facilitating electrolyte replenishment by the user when electrolyte levels decrease, thereby extending the device's service life.

[0031] Specifically, such as Figure 3 , Figure 4 and Figure 5As shown, during the operation of the device, the gas generated by the electrolyte is broken upwards through the filter plate 13. At the same time, the return groove 24 opened on the outside of the battery terminal 3 returns the liquid splashed by the exhaust to the inside of the electrolyte storage tank 2, so that the gas discharged upwards flows upwards through the exhaust port 14. At this time, the gas flowing upwards squeezes the blocking block 15 and the second sealing ring 16 set on the upper side of the exhaust port 14 to move upwards and squeeze the damper 19. Due to the sliding connection structure between the guide block 18 and the blocking block 15, the blocking block 15, which is squeezed by the gas, moves upwards along the guide block 18 set on the outside of the exhaust pipe 17, improving the movement stability of the blocking block 15. At this time, the blocking block 15 and the second sealing ring 16, which have moved upwards, loosen their blockage on the exhaust port 14, so that the gas flowing upwards enters the inside of the exhaust pipe 17 through the gap between the blocking block 15 and the sealing cover 5 and is discharged upwards, thus completing the depressurization and exhaust work of the device. After the gas is discharged, the pressure inside and outside the device returns to normal. Under normal conditions, the pressure on the exhaust pipe 17 causes the blockage block 15 to rebound, generating a reaction force. At this time, the exhaust pipe 17 pushes the blockage block 15 downward along the guide block 18, causing the blockage block 15 to re-engage with the second sealing ring 16 to seal the upper opening of the exhaust port 14. This completes the one-way pressure relief and exhaust of the device, preventing excessive air pressure from affecting the safety of the device. Simultaneously, during the use of the device, the protective sleeve 21 is installed on the upper side of the exhaust pipe 17 along the positioning ring 20 set on the upper side of the sealing cover plate 5. At this time, the second limiting rod 22 passing through the outer side of the protective sleeve 21 is rotated. Due to the threaded connection between the second limiting rod 22, the protective sleeve 21, and the positioning ring 20, the downward rotating second limiting rod 22 fixes the protective sleeve 21 on the upper side of the positioning ring 20. At this time, the protective sleeve 21, together with the third sealing ring 23, blocks and protects the upper opening of the exhaust pipe 17, preventing impurities on the outside of the device from blocking the upper opening of the exhaust pipe 17, and improving the stability of the device.

[0032] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A battery post seal structure, comprising: The outer shell (1) and the positioning block (4) provided on the outer side of the outer shell (1) are provided with a sealing cover plate (5) connected to the upper side of the positioning block (4); Its characteristic is that it further includes: An electrolyte storage cylinder (2) is set inside the outer shell (1), and a battery terminal (3) is provided on the upper side of the electrolyte storage cylinder (2). A filter plate (13) is provided on the upper side of the battery terminal (3), and a reflux groove (24) is opened on the outer side of the battery terminal (3). An exhaust port (14) is located inside the sealing cover plate (5), and a blocking block (15) is installed on the upper side of the exhaust port (14). A second sealing ring (16) is provided on the lower side of the blocking block (15), and an exhaust pipe (17) is connected to the upper side of the blocking block (15). A guide block (18) is provided on the outer side of the exhaust pipe (17), and a damper (19) is nested in the middle of the exhaust pipe (17). A connecting component is provided on the outer side of the sealing cover plate (5), and a blocking component is provided on the upper side of the sealing cover plate (5).

2. The battery post seal structure of claim 1, wherein: The positioning block (4) is engaged with the sealing cover plate (5), and the positioning block (4) is symmetrically arranged about the central axis of the outer shell (1).

3. The battery terminal sealing structure according to claim 1, characterized in that: The second sealing ring (16) is engaged with the plugging block (15), and the cross-section of the plugging block (15) is trapezoidal.

4. The battery terminal sealing structure according to claim 1, characterized in that: The guide block (18) is slidably connected to the block block (15), and the guide block (18) is symmetrically arranged about the central axis of the exhaust pipe (17).

5. The battery terminal sealing structure according to claim 1, characterized in that: The connecting assembly includes an operating rod (6) installed on the outside of the sealing cover plate (5), and a first limiting rod (7) is connected to the upper side of the operating rod (6). A driving rod (8) is provided on the inner side of the operating rod (6), and a driving disk (9) is installed in the middle of the driving rod (8). A connecting block (10) is connected to the outer side of the driving rod (8), and a guide rod (11) is installed on the outer side of the connecting block (10). The first limiting rod (7) is engaged with the operating rod (6), the operating rod (6) is rotatably connected with the sealing cover plate (5), and the operating rod (6) is meshed with the drive disc (9).

6. The battery terminal sealing structure according to claim 5, characterized in that: The drive rod (8) is threadedly connected to the connecting block (10), and the threads at the front and rear ends of the drive rod (8) are opposite to each other. The connecting block (10) is engaged with the outer shell (1).

7. The battery terminal sealing structure according to claim 1, characterized in that: The blocking assembly includes a positioning ring (20) installed on the upper side of the sealing cover plate (5), and a protective sleeve (21) is installed on the inner side of the positioning ring (20). A second limiting rod (22) passes through the outer side of the protective sleeve (21), and a third sealing ring (23) is provided on the lower side of the protective sleeve (21).

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