A new type of sealed waterproof battery end cover

Abstract

The utility model discloses a novel sealing waterproof battery end cover, including first end cover, its inside downside is provided with second end cover, elastic sheet, its fixed mounting is in the middle part of second end cover, and the inside middle side swing joint of second end cover is limited to structure, the limit structure includes spring, moving block and limit rod, and spring sets up in the inside middle side of second end cover, the outside installation of spring has moving block, the connecting hole, its opening is in the upper surface of first end cover, and the inboard fixed connection of connecting hole has first sealing washer, the inboard connection of first end cover has sealing structure, and sealing structure includes connecting plate, sealing block and second sealing plate, sealing block installs in the inside upside of first end cover. The novel sealing waterproof battery end cover is provided with sealing structure, can seal between end cover, thereby plays waterproof effect between end cover and is provided with limit structure, can play the limiting effect to end cover.

Description

Technical Field

[0001] This utility model relates to the field of battery end cap technology, specifically a novel sealed and waterproof battery end cap. Background Technology

[0002] A battery end cap is a structure installed at an opening in the battery casing to seal and protect the internal structure of the battery. It is typically made of metal or plastic and functions to seal and protect internal battery components, as well as provide connections and conductivity. It is a critical component for battery performance and safety, and the design and material selection of the battery end cap have a significant impact on its performance and safety. For example:

[0003] Chinese Patent Publication No. CN213878340U discloses a novel sealed and waterproof battery end cap, comprising an end cap A and an end cap B that mates with its opening. The end cap A has a slot at its interface, and the end cap B has a locking block at its interface that mates with the slot. The slot has an overflow groove A for filling with adhesive to achieve a seal between the end caps A and B. A terminal block is provided between the end caps A and B. The end cap B has an mounting plate for easy installation of the terminal block, and the terminal block has a sealing ring B that mates with the mounting opening. This novel sealed and waterproof battery end cap combines a sealing ring and adhesive application. The sealing ring prevents adhesive leakage due to excessive gaps between the end caps, while the adhesive prevents gaps between the sealing ring and the end cap, resulting in good waterproofing. It combines the advantages of both methods while avoiding their disadvantages.

[0004] Based on existing solutions and actual production and processing, current battery end caps still have some problems. For example, when sealing and waterproofing the battery end caps, sealing rings are used to seal and waterproof the two battery end caps. While this can seal the terminal wires and the battery end caps, the sealing and waterproofing effect between the two battery end caps is limited. Therefore, this utility model provides a new type of sealed and waterproof battery end cap to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this utility model is to provide a novel sealed and waterproof battery end cap to solve the problem mentioned in the background art that when sealing and waterproofing the battery end cap, the sealing ring is used to seal and waterproof the two battery end caps, which can seal between the terminal wire and the battery end cap, but the sealing and waterproofing effect between the two battery end caps is limited.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a novel sealed and waterproof battery end cap, comprising a first end cap and a second end cap disposed on its lower inner side;

[0007] Also includes:

[0008] A spring is fixedly installed in the middle of the second end cover, and a limiting structure is movably connected to the inner middle side of the second end cover. The limiting structure includes a spring, a moving block and a limiting rod. The spring is located in the inner middle side of the second end cover, and a moving block is installed on the outer side of the spring. A limiting rod is connected to the outer side of the moving block.

[0009] A connecting hole is formed on the upper surface of the first end cover, and a first sealing ring is fixedly connected to the inner side of the connecting hole. A sealing structure is connected to the inner side of the first end cover, and the sealing structure includes a connecting plate, a sealing block, and a second sealing plate. The sealing block is installed on the upper inner side of the first end cover, and a connecting plate is connected to the lower side of the sealing block. A second sealing plate is connected to the lower side of the connecting plate.

[0010] Preferably, the connecting plate and the sealing block are installed with adhesive, and the connecting plate is bonded to the sealing block and the second sealing plate respectively.

[0011] Preferably, the inner side of the connecting plate is also connected to an installation rod, and the middle part of the connecting plate is fixedly connected to a tab connecting part, and the installation rod and the connecting plate are connected by a thread.

[0012] Preferably, the second end cap and the movable block are telescopically slidingly connected, and the movable block and the spring are welded and fixedly connected.

[0013] Preferably, a second sealing ring is connected to the inner side of the second end cap, and an installation plate is fixedly installed on the lower outer side of the second end cap. A fixing rod is threadedly connected to the middle of the installation plate, and a first sealing plate is fixedly connected to the lower inner side of the installation plate.

[0014] Preferably, the second sealing ring is fitted to the tab connection portion, and the second sealing ring is installed inside the hole structure opened in the middle of the second end cap.

[0015] Preferably, the movable block and the limiting rod are connected by a thread, the upper side of the movable block is inclined, and the movable block and the first end cap are engaged.

[0016] Compared with the prior art, the beneficial effects of this utility model are: the new sealed waterproof battery end cap is provided with a sealing structure, which can seal between the end caps, thereby playing a waterproof role between the end caps, and is provided with a limiting structure, which can play a limiting role for the end caps.

[0017] 1. By placing the connecting plate inside the first end cover, the connecting plate drives the electrode connecting part to engage and install inside the connecting hole. Rotating the mounting rod causes the mounting rod to be threaded on the inside of the connecting plate, thereby moving the mounting rod upward and making the mounting rod threaded on the inside of the first end cover, which facilitates limiting the electrode connecting part.

[0018] 2. By placing the second end cap inside the first end cap, the second end cap causes the second sealing ring to fit against the lower outer side of the electrode tab connection. This causes the spring piece in the middle of the second end cap to limit the second end cap, which in turn causes the spring to drive the moving block to slide outward from the middle side inside the second end cap. This causes the moving block to engage with the inner side of the first end cap. By rotating the limiting rod, the limiting rod is threaded on the outer side of the middle of the first end cap, thus making the limiting rod threaded on the middle side of the moving block. This facilitates the installation and limiting of the first end cap and the second end cap.

[0019] 3. The first sealing ring set inside the connecting hole is in close contact with the electrode tab connecting part, which can seal the electrode tab connecting part and the connecting hole, thereby waterproofing the first end cover and the connecting plate. The second sealing plate fixedly installed on the outer side of the upper end of the second end cover is in close contact with the connecting plate, which can seal the second end cover and the connecting plate, thus facilitating the sealing and waterproofing between the second end cover and the first end cover. Attached Figure Description

[0020] Figure 1 This is a schematic cross-sectional view of the connection between the first end cap and the connecting hole of this utility model.

[0021] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0022] Figure 3 This is a schematic cross-sectional view of the connection between the first end cap and the second end cap of this utility model.

[0023] Figure 4 This utility model Figure 3 Enlarged schematic diagram of the connection structure at point B;

[0024] Figure 5 This is a schematic cross-sectional view of the connection between the mounting plate and the first sealing plate of this utility model.

[0025] Figure 6 This utility model Figure 5 Enlarged structural diagram at point C;

[0026] Figure 7 This is an exploded view of the connection between the second end cap and the second sealing ring of this utility model.

[0027] In the diagram: 1. First end cap; 2. Connecting hole; 3. Connecting plate; 4. Electrode connecting part; 5. Second end cap; 6. Mounting plate; 7. First sealing plate; 8. Fixing rod; 9. First sealing ring; 10. Sealing block; 11. Second sealing ring; 12. Spring; 13. Second sealing plate; 14. Spring; 15. Moving block; 16. Limiting rod; 17. Mounting rod. 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 1-7 This utility model provides a technical solution: a novel sealed and waterproof battery end cap, comprising a first end cap 1, a connecting hole 2, a connecting plate 3, an electrode tab connecting part 4, a second end cap 5, a mounting plate 6, a first sealing plate 7, a fixing rod 8, a first sealing ring 9, a sealing block 10, a second sealing ring 11, a spring 12, a second sealing plate 13, a spring 14, a moving block 15, a limiting rod 16, and a mounting rod 17. In operation, the specific details are as follows... Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, a connecting plate 3 is provided on the upper side of the inside of the first end cover 1, an electrode tab connecting part 4 is fixedly provided on the outer side of the connecting plate 3, and an installation rod 17 is movably connected to the inner side of the connecting plate 3. The connecting plate 3 is manually placed inside the first end cover 1, so that the connecting plate 3 is engaged and installed inside the first end cover 1 under manual action. Thus, the electrode tab connecting part 4 is installed inside the connecting hole 2 under the engagement action between the connecting plate 3 and the first end cover 1. Furthermore, the electrode tab connecting part 4 is fitted and installed against the inner side of the first sealing ring 9 under the installation action between the electrode tab connecting part 4 and the connecting hole 2. This allows the connecting plate 3 to be fitted onto the upper inner side of the first end cover 1 under the action of the fit between the first sealing ring 9 and the electrode connecting part 4. Then, tighten the mounting rod 17 so that the mounting rod 17 is threaded on the inner side of the connecting plate 3 under the tightening action. Thus, the mounting rod 17 moves upward under the action of the thread between the mounting rod 17 and the connecting plate 3. In turn, the mounting rod 17 is threaded on the upper inner side of the first end cover 1 under the action of the upward movement of the mounting rod 17, which facilitates the installation of the connecting plate 3 and thus facilitates the limiting of the electrode connecting part 4.

[0030] Specific examples Figure 2 , Figure 3 and Figure 4As shown, a second end cover 5 is movably installed inside the first end cover 1, a second sealing plate 13 is fixedly installed on the upper side of the second end cover 5, a spring 14 is fixedly installed in the middle of the interior of the second end cover 5, and a moving block 15 is fixedly installed on the outer side of the spring 14. Manually installing the second end cover 5 under the first end cover 1 causes the second end cover 5 to move upward inside the first end cover 1. This upward movement causes the second end cover 5 to drive the second sealing plate 13 to adhere to the lower end of the connecting plate 3. Furthermore, this upward movement causes the first end cover 1 to push the spring 12 to compress, which in turn pushes the moving block 15 inward. This inward movement of the moving block 15 then compresses the spring 14, causing the second end cover 5 to engage with the first end cover 1. The locking action between the movable block 15 and the first end cover 1 causes the spring piece 12 to fit against the inner side of the first end cover 1, thus eliminating the pushing force of the first end cover 1 on the movable block 15. Under the elastic action of the spring 14, the spring 14 drives the movable block 15 to slide outward. The sliding action of the movable block 15 outward causes the movable block 15 to engage with the middle side of the first end cover 1. Then, tightening the limiting rod 16 causes the limiting rod 16 to be threaded on the outer side of the middle part of the first end cover 1. Under the thread action between the limiting rod 16 and the first end cover 1, the limiting rod 16 moves inward. The inward movement of the limiting rod 16 causes the limiting rod 16 to be threaded on the outer side of the movable block 15, facilitating the installation of the second end cover 5 and thus facilitating the installation of the mounting plate 6.

[0031] Specific examples Figure 2 , Figure 4 , Figure 6 and Figure 7As shown, the first sealing ring 9 is fixedly installed inside the connecting hole 2, the sealing block 10 is fixedly installed on the upper side of the connecting plate 3, and the second sealing plate 13 is fixedly connected to the outer side of the upper end of the second end cover 5. The first sealing ring 9, fixedly installed inside the connecting hole 2, is in close contact with the outer side of the upper electrode tab connection part 4 of the connecting plate 3, thus sealing the connection between the first end cover 1 and the electrode tab connection part 4. The sealing block 10 on the upper side of the connecting plate 3 is in close contact with the first end cover 1, thus sealing and waterproofing the connection between the connecting plate 3 and the first end cover 1. The second sealing plate 13 on the outer side of the upper end of the second end cover 5 is in close contact with the connecting plate 3, the second sealing ring 11 on the inner side of the second end cover 5 is in close contact with the electrode tab connection part 4, and the first sealing plate 7 on the lower end of the mounting plate 6 is in close contact with the battery casing. The second end cap 5 is waterproofed from the connection plate 3, the tab connection 4 from the second end cap 5, and the mounting plate 6 from the battery casing. The second end cap 5 is then manually placed on the upper side of the opening in the battery casing, causing the mounting plate 6 to engage with the outer side of the battery casing. The engagement between the second end cap 5 and the mounting plate 6 causes the mounting plate 6 to engage with the first sealing plate 7 against the outer side of the battery casing. The fixing rod 8 is then tightened, causing it to be threaded onto the outer side of the middle of the mounting plate 6. The threaded action between the fixing rod 8 and the mounting plate 6 causes the fixing rod 8 to move inward, thus creating a threaded connection between the fixing rod 8 and the battery casing, facilitating the installation of the mounting plate 6.

[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 novel sealed and waterproof battery end cap, comprising a first end cap (1) and a second end cap (5) disposed on the lower inner side thereof. Its features are, Also includes: A spring (12) is fixedly installed in the middle of the second end cover (5), and a limiting structure is movably connected to the inner middle side of the second end cover (5). The limiting structure includes a spring (14), a moving block (15) and a limiting rod (16). The spring (14) is located in the inner middle side of the second end cover (5), and the moving block (15) is installed on the outer side of the spring (14). The limiting rod (16) is connected to the outer side of the moving block (15). A connecting hole (2) is provided on the upper surface of the first end cover (1), and a first sealing ring (9) is fixedly connected to the inner side of the connecting hole (2). A sealing structure is connected to the inner side of the first end cover (1), and the sealing structure includes a connecting plate (3), a sealing block (10), and a second sealing plate (13). The sealing block (10) is installed on the upper inner side of the first end cover (1), and the lower side of the sealing block (10) is connected to the connecting plate (3), and the lower side of the connecting plate (3) is connected to the second sealing plate (13).

2. The novel sealed and waterproof battery end cap according to claim 1, characterized in that: The connecting plate (3) and the sealing block (10) are installed with adhesive, and the connecting plate (3) is bonded to the sealing block (10) and the second sealing plate (13) respectively.

3. The novel sealed and waterproof battery end cap according to claim 2, characterized in that: The inner side of the connecting plate (3) is also connected to an installation rod (17), and the middle part of the connecting plate (3) is fixedly connected to a tab connection part (4), and the installation rod (17) and the connecting plate (3) are connected by a thread.

4. The novel sealed and waterproof battery end cap according to claim 1, characterized in that: The second end cap (5) and the movable block (15) are connected by a telescopic sliding connection, and the movable block (15) and the spring (14) are connected by a welded fixed connection.

5. A novel sealed and waterproof battery end cap according to claim 4, characterized in that: The inner side of the second end cap (5) is also connected to a second sealing ring (11), and an installation plate (6) is fixedly installed on the lower outer side of the second end cap (5). A fixing rod (8) is threadedly connected to the middle of the installation plate (6), and a first sealing plate (7) is fixedly connected to the lower inner side of the installation plate (6).

6. A novel sealed and waterproof battery end cap according to claim 5, characterized in that: The second sealing ring (11) is fitted to the electrode connecting part (4), and the second sealing ring (11) is installed inside the hole structure opened in the middle of the second end cover (5).

7. A novel sealed and waterproof battery end cap according to claim 4, characterized in that: The movable block (15) and the limiting rod (16) are connected by threads, and the upper side of the movable block (15) is inclined. The movable block (15) and the first end cap (1) are connected by a snap-fit ​​connection.

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