A connecting device for a lithium battery safety valve

Abstract

The utility model discloses a kind of connecting device based on lithium battery safety valve, it is related to lithium battery safety valve technical field.The utility model includes lithium battery, the front of lithium battery is equipped with mounting plate, safety valve is installed in the inside of mounting plate, further include: installation portion, the installation portion is installed in the inside of lithium battery.The utility model is by setting installation portion, specifically is to push safety valve into mounting hole position, its two locking blocks are extruded and mutually close, subsequently use wrench to tighten hexagonal screw block clockwise, when sealing pad is pressed in the back of sealing plate, locking block has entered installation groove and mutually far away because of pressure loss, its front and installation groove inner wall are closely contacted, complete installation;When taking out, pull out push-pull block, unlock block extrude locking block inside unlock groove so that it mutually close, then anticlockwise screw hexagonal screw block can take out safety valve, by safety valve and lithium battery threaded connection and locking block effect, realize the installation of safety valve firmly on lithium battery.

Description

Technical Field

[0001] This utility model belongs to the field of lithium battery safety valve technology, and in particular relates to a connection device for lithium battery safety valves. Background Technology

[0002] Against the backdrop of the rapid development of the new energy industry, the safety of lithium batteries, as core energy storage components, has always been the focus of industry attention. As a key component of the lithium battery safety system, the safety valve is responsible for releasing gas in time when the internal pressure of the battery exceeds the standard, preventing thermal runaway from causing an explosion or fire.

[0003] Traditional connection methods use threaded connections to install the safety valve and lithium battery. However, vibrations occur during vehicle operation, and prolonged vibrations can cause the safety valve to loosen, preventing it from effectively releasing gas and potentially leading to accidents such as thermal runaway. Therefore, we propose a connection device for lithium battery safety valves. Summary of the Invention

[0004] The purpose of this invention is to provide a connecting device for a lithium battery safety valve. Specifically, by setting an installation part, the safety valve is pushed into the installation hole, and its two locking blocks are squeezed together. Then, the hexagonal screw is tightened clockwise with a wrench. When the sealing gasket on the back of the sealing plate is pressed, the locking blocks have entered the installation groove and move away from each other due to pressure loss, with their front sides in close contact with the inner wall of the installation groove, thus completing the installation. To remove the valve, pull out the push-pull block, and the unlocking block squeezes the unlocking groove inside the locking blocks, bringing them closer together. Then, the hexagonal screw is turned counterclockwise to remove the safety valve. Through the threaded connection between the safety valve and the lithium battery, and the action of the locking blocks, a stable installation is achieved, solving the problem that existing safety valves, which are installed to the lithium battery via threads, can loosen due to vibrations generated during vehicle operation.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a connection device for a lithium battery safety valve, comprising a lithium battery, a mounting plate mounted on the front of the lithium battery, a safety valve installed inside the mounting plate, and further comprising:

[0007] A mounting section, installed inside the lithium battery, is used to mount a safety valve; and

[0008] A fixing part is installed on the front side of the mounting plate and is used to fix the safety valve.

[0009] The fixing part is provided in two sets, which are distributed on the left and right sides of the safety valve, and a sealing plate is fixedly connected to the outer surface of the safety valve.

[0010] Furthermore, the mounting part includes a mounting groove, which is disposed inside the lithium battery;

[0011] An unlocking component, installed inside the safety valve, is used to release the safety valve from the lithium battery; and

[0012] A locking assembly, installed inside the safety valve, is used to lock the safety valve to the lithium battery.

[0013] The mounting slot is used to lock the safety valve with the locking assembly.

[0014] Furthermore, the fixing part includes two rotating rods, and a locking block is fixedly connected to the outer surface of each of the two rotating rods. The sealing plate has two fixing grooves I inside, and each of the two fixing grooves I has a fixing groove II inside.

[0015] Among them, the first fixing groove is used to assist the card block in entering the interior of the sealing plate, and the second fixing groove is used to fix the card block to the sealing plate.

[0016] Furthermore, the unlocking component includes a push-pull block, a slide rod is fixedly connected to the back of the push-pull block, a limit piece is fixedly connected to the outer surface of the slide rod, a spring is sleeved on the outer surface of the slide rod, an adjustment groove is opened inside the safety valve, and an unlocking block is fixedly connected to the back of the slide rod;

[0017] The spring has one front end fixedly connected to the inner wall of the adjusting groove, and one back end fixedly connected to the front of the limiting plate. The slide rod is slidably limited to the adjusting groove through the limiting plate, and the slide rod is slidably connected to the safety valve. The spring also pushes the limiting plate to reset.

[0018] Furthermore, the locking assembly includes two locking blocks, each with a limiting protrusion fixedly connected to its top and bottom. The safety valve has a circular groove inside, and two limiting grooves are formed on the inner wall of the circular groove. The locking blocks slide and limit each other with the two limiting grooves through the limiting protrusions at the top and bottom, respectively. The locking blocks also have an unlocking groove inside.

[0019] The circular groove contains two springs, with the sides of the two springs that are far apart from each other being fixedly connected to the sides of the two locking blocks that are close to each other. The two springs serve to push the two locking blocks to reset.

[0020] Furthermore, the mounting plate has two push-pull grooves inside, and a limiting block is fixedly connected to the back of the rotating rod. The rotating rod slides and is limited by the limiting block and the push-pull groove.

[0021] Spring 3 is sleeved on the outer surface of the rotating rod. One end of the front of spring 3 is fixedly connected to the back of the locking block, and one end of the back of spring 3 is in contact with the front of the mounting plate.

[0022] Furthermore, a hexagonal screw block is fixedly connected to the outer surface of the safety valve, and a sealing gasket is installed on the back of the sealing plate;

[0023] The sealing gasket enables the safety valve to seal with the mounting plate, thus preventing leakage.

[0024] This utility model has the following beneficial effects:

[0025] This utility model features an installation part. Specifically, the safety valve is pushed into the installation hole, and its two locking blocks are squeezed together. Then, the hexagonal screw is tightened clockwise with a wrench. When the sealing gasket on the back of the sealing plate is pressed, the locking blocks have entered the installation groove and move away from each other due to pressure loss. Their front sides are in close contact with the inner wall of the installation groove, completing the installation. To remove it, pull out the push-pull block. The unlocking block squeezes the unlocking groove inside the locking block, bringing them closer together. Then, the hexagonal screw is turned counterclockwise to remove the safety valve. Through the threaded connection between the safety valve and the lithium battery and the action of the locking blocks, the safety valve can be securely installed on the lithium battery.

[0026] This utility model features a fixing part. Specifically, pressing the right rotating rod and rotating it counterclockwise aligns the locking block with the first fixing groove, then pushing it in. Spring three is compressed, and after being pushed to the bottom of the first fixing groove, the rotating rod is released. The spring three's elastic force pushes the locking block into the second fixing groove. The left rotating rod is pressed and rotated clockwise for installation in the same way. When replacing the safety valve, both rotating rods are pressed simultaneously and rotated in opposite directions. The locking block can further fix the safety valve, preventing it from shaking and falling off due to vibration.

[0027] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0030] Figure 2 This is a schematic diagram of the mounting groove structure of this utility model;

[0031] Figure 3 This is a schematic diagram of the overall structure of the locking component of this utility model;

[0032] Figure 4 This utility model Figure 3 A magnified structural diagram of A in the middle;

[0033] Figure 5 This is a schematic diagram of the overall structure of the unlocking component of this utility model;

[0034] Figure 6 This is a schematic diagram of the overall structure of the fixing part of this utility model.

[0035] The attached diagram lists the components represented by each number as follows:

[0036] 1. Lithium battery; 11. Mounting plate; 12. Safety valve; 121. Hexagonal screw block; 122. Sealing plate; 123. Sealing gasket; 2. Mounting part; 21. Unlocking assembly; 211. Push-pull block; 212. Slide rod; 213. Limiting piece; 214. Spring one; 215. Adjustment groove; 216. Unlocking block; 22. Locking assembly; 221. Locking block; 222. Limiting protrusion; 223. Limiting groove; 224. Unlocking groove; 225. Spring two; 226. Circular groove; 227. Mounting groove; 3. Fixing part; 311. Fixing groove one; 312. Fixing groove two; 32. Rotating rod; 321. Locking block; 322. Spring three; 323. Limiting circular block; 324. Push-pull groove. Detailed Implementation

[0037] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0038] Please see Figures 1-6 As shown, this utility model is a connection device for a lithium battery safety valve, including a lithium battery 1, a mounting plate 11 mounted on the front of the lithium battery 1, a safety valve 12 installed inside the mounting plate 11, and further including:

[0039] Mounting part 2 is installed inside lithium battery 1 and is used to mount safety valve 12; and

[0040] Fixing part 3 is installed on the front side of mounting plate 11 and is used to fix safety valve 12.

[0041] The fixing part 3 is provided in two sets, and is distributed on the left and right sides of the safety valve 12. The sealing plate 122 is fixedly connected to the outer surface of the safety valve 12.

[0042] The mounting section 2 includes a mounting slot 227, which is disposed inside the lithium battery 1;

[0043] Unlocking component 21, installed inside safety valve 12, is used to release the lock between safety valve 12 and lithium battery 1; and

[0044] Locking component 22 is installed inside the safety valve 12 and is used to lock the safety valve 12 with the lithium battery 1.

[0045] The mounting slot 227 is used to lock the safety valve 12 with the locking assembly 22.

[0046] The fixing part 3 includes two rotating rods 32, and a locking block 321 is fixedly connected to the outer surface of each of the two rotating rods 32. The sealing plate 122 has two fixing grooves 311 inside, and each of the two fixing grooves 311 has a fixing groove 312 inside.

[0047] Among them, the first fixing groove 311 is used to assist the locking block 321 in entering the sealing plate 122, and the second fixing groove 312 is used to fix the locking block 321 to the sealing plate 122.

[0048] The unlocking component 21 includes a push-pull block 211, a slide rod 212 fixedly connected to the back of the push-pull block 211, a limit piece 213 fixedly connected to the outer surface of the slide rod 212, a spring 214 sleeved on the outer surface of the slide rod 212, an adjustment groove 215 opened inside the safety valve 12, and an unlocking block 216 fixedly connected to the back of the slide rod 212.

[0049] Among them, one end of the front of the spring 214 is fixedly connected to the inner wall of the adjustment groove 215, and one end of the back of the spring 214 is fixedly connected to the front of the limiting piece 213. The slide rod 212 is slidably limited to the adjustment groove 215 through the limiting piece 213, and the slide rod 212 is slidably connected to the safety valve 12. The spring 214 plays the role of pushing the limiting piece 213 to reset.

[0050] Locking assembly 22 includes two locking blocks 221, with limiting protrusions 222 fixedly connected to the top and bottom of each locking block 221. The safety valve 12 has a circular groove 226 inside, and two limiting grooves 223 are formed on the inner wall of the circular groove 226. The locking blocks 221 slide and limit each other through the limiting protrusions 222 at the top and bottom, respectively, with the two limiting grooves 223. An unlocking groove 224 is also formed inside the locking block 221. When the safety valve 12 is pushed into the mounting hole, the two locking blocks 221 are pressed closer together. Then, the hexagonal screws are tightened clockwise with a wrench. When the sealing gasket 123 on the back of the sealing plate 122 is pressed, the locking block 221 has entered the mounting groove 227 and moves away from each other due to pressure loss. Its front side is in close contact with the inner wall of the mounting groove 227, thus completing the installation. When removing it, pull out the push-pull block 211, and the unlocking block 216 squeezes the unlocking groove 224 inside the locking block 221 to make them move closer to each other. Then, turn the hexagonal screw block 121 counterclockwise to remove the safety valve 12. Through the threaded connection between the safety valve 12 and the lithium battery 1 and the action of the locking block 221, the safety valve 12 can be securely installed on the lithium battery 1.

[0051] The circular groove 226 contains two springs 225. The two springs 225 are fixedly connected to the sides of the two locking blocks 221 that are close to each other. The two springs 225 are used to push the two locking blocks 221 to reset.

[0052] The mounting plate 11 has two push-pull grooves 324 inside. The back of the rotating rod 32 is fixedly connected to a limiting block 323. The rotating rod 32 slides and is limited by the limiting block 323 and the push-pull groove 324. Press the right rotating rod 32 and rotate it counterclockwise so that the locking block 321 is aligned with the first fixing groove 311 and pushed in. The third spring 322 is squeezed and pushed to the bottom of the first fixing groove 311. Then release the rotating rod 32. The spring force of the third spring 322 pushes the locking block 321 into the second fixing groove 312. Press the left rotating rod 32 and rotate it clockwise to install it in the same way. When replacing the safety valve 12, press both rotating rods 32 at the same time and rotate them in opposite directions. The locking block can further fix the safety valve 12 and prevent it from shaking and falling off due to vibration.

[0053] Among them, a spring 322 is sleeved on the outer surface of the rotating rod 32. One end of the front of the spring 322 is fixedly connected to the back of the locking block 321, and one end of the back of the spring 322 is in contact with the front of the mounting plate 11.

[0054] A hexagonal screw block 121 is fixedly connected to the outer surface of the safety valve 12, and a sealing gasket 123 is installed on the back of the sealing plate 122;

[0055] The sealing gasket 123 enables the safety valve 12 to seal with the mounting plate 11, thus preventing leakage.

[0056] A specific application of this embodiment is as follows: When in use, align the safety valve 12 with the mounting hole on the mounting plate 11, and push it in. During the process of pushing the safety valve 12 in, the two locking blocks 221 on it are squeezed and move to the side closer to each other. At this time, the two springs 225 are compressed. Then, use a wrench to tighten the hexagonal screw block 121 clockwise to install the safety valve 12 with the lithium battery 1. When the sealing gasket 123 on the back of the sealing plate 122 is squeezed, the two locking blocks 221 have entered the mounting groove 227. At this time, the two locking blocks 221 move away from each other due to the loss of compression, and the front of the locking block 221 is in close contact with the inner wall of the mounting groove 227. At this time, the installation is completed.

[0057] After installation, press the rotating rod 32 on the right and rotate it counterclockwise to align the locking block 321 with the first fixing slot 311 and push it in. At this time, the third spring 322 is squeezed and pushed to the bottom of the first fixing slot 311. Release the rotating rod 32, and the third spring 322 will push the locking block 321 into the second fixing slot 312 through its own elasticity. Then press the rotating rod 32 on the left and rotate it clockwise to install in the same way. At this time, the mounting plate 11 is fixed by the two locking blocks 321 working together. Through the threaded connection between the safety valve 12 and the lithium battery 1, and the cooperation of the locking block 221 and the locking block 321, the safety valve 12 can be securely installed on the lithium battery 1.

[0058] When the safety valve 12 needs to be replaced, press both levers 32 simultaneously and rotate them in opposite directions to disengage the two locking blocks 321 from the fixing groove 311. Then pull out the push-pull block 211, and the slide rod 212 will be pulled along with it. At this time, the spring 214 is compressed. When the slide rod 212 is pulled, the unlocking block 216 will compress the unlocking groove 224 inside the two locking blocks 221, causing the two locking blocks 221 to move closer to each other. At this time, the two springs 225 are compressed. Then, you can use a wrench to turn the hexagonal screw block 121 counterclockwise to remove the safety valve 12. When the safety valve 12 is completely removed, release the push-pull block 211. The spring 214 will push the limit plate 213 and the slide rod 212 to reset through its own elasticity. At this time, the two locking blocks 221 are no longer compressed, and the two springs 225 will push the two locking blocks 221 to reset through their own elasticity, preparing for the next installation.

[0059] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0060] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A connection device for a lithium battery safety valve, comprising a lithium battery (1), wherein a mounting plate (11) is mounted on the front side of the lithium battery (1), and a safety valve (12) is installed inside the mounting plate (11), characterized in that, Also includes: Mounting part (2), which is installed inside the lithium battery (1), is used to mount the safety valve (12); and Fixing part (3) is installed on the front of the mounting plate (11) and is used to fix the safety valve (12). The fixing part (3) is provided in two sets and is distributed on the left and right sides of the safety valve (12). The outer surface of the safety valve (12) is fixedly connected with a sealing plate (122).

2. The connecting device for a lithium battery safety valve according to claim 1, characterized in that, The mounting part (2) includes a mounting groove (227), which is disposed inside the lithium battery (1); Unlocking component (21), which is installed inside the safety valve (12), is used to unlock the safety valve (12) from the lithium battery (1); as well as A locking assembly (22) is installed inside the safety valve (12) and is used to lock the safety valve (12) to the lithium battery (1). The mounting slot (227) is used to lock the safety valve (12) with the locking assembly (22).

3. The connecting device for a lithium battery safety valve according to claim 2, characterized in that, The fixing part (3) includes two rotating rods (32), and a locking block (321) is fixedly connected to the outer surface of each of the two rotating rods (32). The sealing plate (122) has two fixing grooves (311) inside, and two fixing grooves (312) are provided inside each of the two fixing grooves (311). Among them, the first fixing groove (311) is used to assist the card block (321) in entering the interior of the sealing plate (122), and the second fixing groove (312) is used to fix the card block (321) to the sealing plate (122).

4. A connecting device for a lithium battery safety valve according to claim 3, characterized in that, The unlocking component (21) includes a push-pull block (211), a slide rod (212) is fixedly connected to the back of the push-pull block (211), a limit piece (213) is fixedly connected to the outer surface of the slide rod (212), a spring (214) is sleeved on the outer surface of the slide rod (212), an adjustment groove (215) is opened inside the safety valve (12), and an unlocking block (216) is fixedly connected to the back of the slide rod (212). Among them, one end of the front of the spring (214) is fixedly connected to the inner wall of the adjustment groove (215), one end of the back of the spring (214) is fixedly connected to the front of the limiting piece (213), the slide rod (212) is slidably limited to the adjustment groove (215) through the limiting piece (213), and the slide rod (212) is slidably connected to the safety valve (12). The spring (214) plays the role of pushing the limiting piece (213) to reset.

5. A connecting device for a lithium battery safety valve according to claim 4, characterized in that, The locking assembly (22) includes two locking blocks (221). The top and bottom of the two locking blocks (221) are fixedly connected to limit protrusions (222). The safety valve (12) has a circular groove (226) inside. The inner wall of the circular groove (226) has two limit grooves (223). The locking block (221) slides and is limited by the limit protrusions (222) at the top and bottom respectively with the two limit grooves (223). The locking block (221) has an unlocking groove (224) inside. The circular groove (226) contains two springs (225). The two springs (225) are fixedly connected to the sides of the two locking blocks (221) that are close to each other. The two springs (225) push the two locking blocks (221) to reset.

6. A connecting device for a lithium battery safety valve according to claim 4, characterized in that, The mounting plate (11) has two push-pull grooves (324) inside. The back of the rotating rod (32) is fixedly connected to a limiting block (323). The rotating rod (32) slides and is limited by the limiting block (323) and the push-pull groove (324). Among them, the outer surface of the rotating rod (32) is fitted with a spring three (322), one end of the front of the spring three (322) is fixedly connected to the back of the card block (321), and one end of the back of the spring three (322) is in contact with the front of the mounting plate (11).

7. A connecting device for a lithium battery safety valve according to claim 6, characterized in that, The safety valve (12) has a hexagonal screw block (121) fixedly connected to its outer surface, and a sealing gasket (123) is installed on the back of the sealing plate (122). The sealing gasket (123) enables the safety valve (12) to seal with the mounting plate (11), thus preventing leakage.

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