An intelligent leakage detection device for soft-pack lithium batteries capable of rapid batch detection

Abstract

The present invention discloses an intelligent leakage detection device for soft-pack lithium batteries that can be used for batch rapid detection, including a liquid storage tank and a fixed plate, the fixed plate is located at the top of the opening of the liquid storage tank, and the liquid storage tank is filled with a conductive solution; it also includes: a connecting component, the lithium battery is connected to the fixed plate through the connecting component, and a grip is fixedly connected to the middle position of the top of the fixed plate; an indicator light, the indicator light is installed at the top of the fixed plate, a through hole is opened at the bottom of the fixed plate corresponding to the position of the indicator light, and two electric contact connectors of the indicator light are inserted into the through hole, one of the electric contact connectors is used to electrically connect to the lithium battery, and the other electric contact connector is used to electrically connect to the conductive solution, and a cleaning component is provided at the opening in the liquid storage tank. The improved detection device detects the leakage of the lithium battery by checking whether the circuit is connected, and the detection effect is accurate. The device is easy to assemble and quick to operate, and has high safety in use.

Description

Technical Field

[0001] The present invention relates to the technical field of detection devices, and in particular to an intelligent leakage detection device for soft-pack lithium batteries capable of rapid batch detection. Background Art

[0002] Lithium battery is a kind of battery that uses lithium metal or lithium alloy as positive / negative electrode material and non-aqueous electrolyte solution. In the 1970s, due to the very active chemical properties of lithium metal, the processing, storage and use of lithium metal had very high environmental requirements. With the development of science and technology, lithium batteries have become mainstream, and soft-pack lithium batteries are a type of lithium battery. Soft-pack lithium batteries are just liquid lithium-ion batteries covered with a polymer shell and structurally packaged with aluminum-plastic film. In the event of a safety hazard, the soft-pack battery will only bulge and crack at most.

[0003] For example, a leakage intelligent detection device for soft-pack lithium batteries with publication number CN213812766U includes a base, a body is fixedly installed on the top of the base, a side block is fixedly installed on the left side of the body cavity, a movable plate is hinged inside the side block, the right end of the movable plate is located outside the side block, an arc-shaped opening is opened on the right side of the body cavity, and a roller located inside the arc-shaped opening is movably installed on the right end of the movable plate. By setting the movable plate, the driving motor and the rotating block, when the driving motor is running, the rotating shaft will drive the rotating block to rotate, and the outer surface of the rotating block will continuously squeeze and push the movable plate, so that it drives the soft-pack lithium battery to vibrate. At this time, the soft-pack lithium battery with unqualified sealing is more likely to leak, and the installation simulation detection of the soft-pack lithium battery is also realized.

[0004] When testing soft-pack lithium batteries, this patent uses a device to accelerate the leakage of the lithium battery leakage point, and determines whether the lithium battery is leaking through the color change reaction of the detection solution and the lithium battery fluid. Since the operation of the device and the reaction of the lithium battery fluid with the detection solution require a certain amount of time, the detection rate of the lithium battery is greatly reduced, and the detection results of the device are prone to errors when manually identified. The mixing of defective products in the finished product and the reduction of the detection rate will cause the manufacturer to suffer unnecessary economic losses.

[0005] In view of this, it is necessary to propose an intelligent leakage detection device for soft-pack lithium batteries that can be used for batch rapid detection in order to solve the above-mentioned problems. Summary of the invention

[0006] The purpose of the present invention is to provide an intelligent leakage detection device for soft-pack lithium batteries that can be used for rapid batch detection, so as to solve the problem raised by the above-mentioned background technology that the improved detection device currently on the market has a slow detection time and is prone to errors in manual identification of the detection results, which ultimately causes the manufacturer to suffer unnecessary economic losses.

[0007] To achieve the above object, the present invention provides the following technical solution: an intelligent leakage detection device for soft-pack lithium batteries capable of batch rapid detection, comprising a liquid storage tank and a fixing plate, wherein the fixing plate is located at the top of the opening of the liquid storage tank, and the liquid storage tank is filled with a conductive solution;

[0008] Also includes:

[0009] A connecting assembly, wherein the lithium battery is connected to the fixing plate via the connecting assembly, and a gripping rod is fixedly connected to the middle position of the top of the fixing plate;

[0010] An indicator light is mounted on the top of a fixed plate, a through hole is provided at the bottom of the fixed plate at a position corresponding to the indicator light, and two electric contact connectors of the indicator light are inserted into the through hole, one of the electric contact connectors is used to be electrically connected to a lithium battery, and the other electric contact connector is used to be electrically connected to a conductive solution, and a cleaning component is provided at the opening in the liquid storage tank.

[0011] By adopting the above technical solution, the fixing plate and the lithium battery are fixed together through the connecting component, and then the lithium battery is inserted into the liquid storage tank. If the lithium battery leaks, the indicator light will send out a warning signal, and when the lithium battery is pulled out of the liquid storage tank, the cleaning component can automatically scrape off the conductive solution outside the lithium battery, avoiding the cleaning of the lithium battery after it is pulled out of the liquid storage tank. The device is simple to operate, short in detection time, accurate in detection, and not prone to errors, which improves the detection rate of lithium batteries and reduces the probability of defective products being mixed into finished products.

[0012] Preferably, the connecting assembly includes two fixing rods, one end of the fixing rod is fixedly connected to the fixing plate, and the other end of the fixing rod is provided with a slide groove, the two electric contact connectors of the lithium battery are respectively inserted into the corresponding slide grooves, a placement groove is provided on the outer peripheral side of the slide groove, and the placement groove is communicated with the slide groove, a pull ring is slidably connected in the placement groove, and the opposite ends of the inner ring wall of the pull ring are respectively fixedly connected with a soft block and a push block.

[0013] By adopting the above technical scheme, through the extrusion between the lithium battery's contact connector and the push block, the pull ring drives the soft block to move in the direction of the lithium battery contact connector, and then through the friction between the soft block and the lithium battery contact connector, the lithium battery contact connector is fixed in the fixed rod, and the connection between the fixed plate and the lithium battery is established through friction, which facilitates the disassembly of the lithium battery.

[0014] Preferably, part of the push block is inserted into the slide groove, and the bottom end of the push block is set as an arc surface, a first spring is provided between the pull ring and the inner wall of the placement groove, and the two ends of the first spring are respectively slidably connected to the pull ring and the inner wall of the placement groove.

[0015] By adopting the above technical solution, the push block arranged on the arc surface facilitates the lithium battery to push the pull ring, and the pull ring is reset by the first spring, which facilitates repeated installation between the fixing plate and the lithium battery.

[0016] Preferably, a soft ring is provided between the fixing rod and the lithium battery, and the top end of the soft ring is fixedly connected to the bottom end of the corresponding fixing rod, and the inner ring wall of the soft ring is interference fit with the outer peripheral wall of the corresponding electric contact connector of the lithium battery.

[0017] By adopting the above technical solution, the gap between the fixing rod and the lithium battery contact connector is blocked by a soft ring, thereby increasing the sealing between the fixing rod and the lithium battery contact connector and preventing the conductive solution in the liquid storage tank from contacting the lithium battery contact connector.

[0018] Preferably, a first conductive rod is passed through the through hole, and the top end of the first conductive rod passes through the fixed plate and is fixedly connected to an electric contact connector of the indicator light, and a second conductive rod is fixedly passed through the wall of the liquid storage tank, and the part of the second conductive rod located outside the liquid storage tank is inserted into the through hole and contacts with another electric contact connector of the indicator light.

[0019] By adopting the above technical solution, the assembly time of the device is saved through the installation completion indicator light between the fixing plate, the liquid storage tank and the lithium battery, and the circuit connection between the first conductive rod, the second conductive rod and the lithium battery.

[0020] Preferably, the cleaning assembly includes a pressure ring, a liquid suction ring and a scraper ring, which are arranged in the upper end opening of the liquid storage tank from top to bottom in sequence, the outer peripheral wall of the scraper ring is fixedly connected to the inner wall of the liquid storage tank, and the outer peripheral wall of the liquid suction ring and the outer peripheral wall of the pressure ring are both slidably connected to the inner wall of the liquid storage tank.

[0021] By adopting the above technical solution, in the process of pulling the lithium battery out of the liquid storage tank, the scraper ring scrapes off the conductive solution on the outside of the lithium battery, and then the liquid suction ring removes the residual conductive solution on the outside of the lithium battery after cleaning by the scraper ring, thereby avoiding the need to clean the conductive solution outside the lithium battery after taking the lithium battery out of the liquid storage tank.

[0022] Preferably, the top end of the liquid suction ring contacts the bottom end of the pressure ring, and the bottom end of the liquid suction ring is fixedly connected to the top end of the scraper ring, and a soft pad is fixedly connected to the inner ring wall of the pressure ring.

[0023] By adopting the above technical solution, the friction between the pressure ring and the lithium battery is increased by the soft pad, so that the pressure ring is driven to move by the friction between the pressure ring and the lithium battery, which facilitates the pressure ring to squeeze the liquid absorption ring.

[0024] Preferably, two limiting grooves are relatively opened on the inner wall of the opening of the liquid storage tank, two limiting blocks are relatively fixedly connected to the outer ring wall of the pressure ring, and a part of each limiting block is inserted into the corresponding limiting groove, a second spring is provided between the limiting block and the inner wall of the corresponding limiting groove, and the two ends of the second spring are respectively fixedly connected to the inner wall of the corresponding limiting groove and the corresponding limiting block.

[0025] By adopting the above technical solution, the moving trajectory of the pressure ring is limited by the limit block, thereby preventing the pressure ring from falling off from the liquid storage tank, and the moved pressure ring is reset by the second spring, which facilitates the repeated squeezing of the pressure ring on the liquid suction ring.

[0026] Preferably, a plurality of reflux grooves are provided in the box wall of the liquid storage box corresponding to the liquid suction ring, a guide bar is fixedly connected in the reflux groove, and one end of the guide bar close to the liquid suction ring is fixedly connected to the liquid suction ring.

[0027] By adopting the above technical solution, when the liquid absorption ring is squeezed, the conductive solution in the liquid absorption ring is squeezed into the guide strip and flows back into the liquid storage tank along the backflow hole, thereby reducing the loss of conductive liquid when using the device.

[0028] Compared with the prior art, the beneficial effects of the present invention are: the device detects the leakage of lithium batteries by checking whether the circuit is connected, the detection effect is accurate, and the device is easy to assemble and operate, and has high safety in use. The specific contents are as follows;

[0029] 1. A fixing plate and a fixing rod are provided. The two contact connectors of the lithium battery are inserted into the slide groove of the fixing rod. The soft block is driven by the push block and the pull ring to close the contact connectors of the lithium battery. The lithium battery is fixed to the lower end of the fixing plate. When removing the lithium battery, the fixing plate and the lithium battery are directly pulled in reverse to directly separate the lithium battery from the fixing plate, which facilitates the installation and removal between the lithium battery and the fixing plate.

[0030] 2. A pressure ring, a liquid suction ring, a scraper ring and a soft ring are provided. When the lithium battery is pulled out from the liquid storage tank, the scraper ring cooperates with the liquid suction ring to scrape off the residual conductive solution on the surface of the lithium battery. When the lithium battery is inserted into the liquid storage tank, the friction between the soft ring and the lithium battery drives the pressure ring to cooperate with the scraper ring to squeeze the liquid suction ring, and the conductive solution in the liquid suction ring is squeezed into the guide bar to guide the conductive solution into the reflux groove. The conductive solution flows back into the liquid storage tank along the reflux groove, which greatly reduces the loss of the conductive solution and reduces the detection cost of the lithium battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is an overall schematic diagram of the present invention;

[0032] Figure 2 This is a schematic diagram of the installation structure of the lithium battery of the present invention;

[0033] Figure 3 It is a schematic diagram of the internal structure of the fixing rod of the present invention;

[0034] Figure 4 For the present invention Figure 3 A schematic diagram of the enlarged structure at A in the middle;

[0035] Figure 5 It is a schematic diagram of the internal structure of the liquid storage tank of the present invention;

[0036] Figure 6 For the present invention Figure 6 A schematic diagram of the enlarged structure at B in the middle;

[0037] Figure 7 It is a schematic diagram of the installation structure of the pull ring of the present invention;

[0038] Figure 8 It is a schematic diagram of the overall structure of the pressure ring, liquid suction ring and scraper of the present invention.

[0039] In the figure: 1. liquid storage tank; 2. fixing plate; 3. conductive solution; 4. lithium battery; 5. connecting assembly; 51. fixing rod; 52. slide groove; 53. placement groove; 54. pull ring; 55. soft block; 56. push block; 57. first spring; 58. soft ring; 6. indicator light; 7. cleaning assembly; 71. pressure ring; 72. liquid suction ring; 73. scraper ring; 74. soft pad; 75. limit groove; 76. limit block; 77. second spring; 78. reflux groove; 79. guide strip; 8. through hole; 9. first conductive rod; 10. second conductive rod; 11. grip. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] See also Figure 1-Figure 4The present invention provides a liquid leakage intelligent detection device for soft-pack lithium batteries that can be rapidly detected in batches, comprising a liquid storage tank 1 and a fixed plate 2, wherein the fixed plate 2 is located at the top of the opening of the liquid storage tank 1, and the liquid storage tank 1 is filled with a conductive solution 3; and further comprising: a connecting assembly 5, through which the lithium battery 4 is connected to the fixed plate 2, and the lithium battery 4 is located below the fixed plate 2, and a gripping rod 11 is fixedly connected at the middle position of the top of the fixed plate 2. The connecting assembly 5 comprises two fixed rods 51, one end of the fixed rod 51 is fixedly connected to the fixed plate 2, and the other end of the fixed rod 51 is provided with a slide groove 52. A soft ring 58 is provided between the fixed rod 51 and the lithium battery 4, and the top of the soft ring 58 is fixedly connected to the bottom end of the corresponding fixed rod 51, and the inner ring wall of the soft ring 58 is interference fit with the outer peripheral wall of the corresponding electric contact connector of the lithium battery 4. The gap between the fixed rod 51 and the electric contact connector of the lithium battery 4 is blocked by the soft ring 58, thereby increasing the sealing between the fixed rod 51 and the electric contact connector of the lithium battery 4.

[0042] See also Figure 4 and Figure 7 The two electric contact connectors of the lithium battery 4 are respectively inserted into the corresponding slide grooves 52. The outer peripheral side of the slide groove 52 is provided with a placement groove 53, and the placement groove 53 is communicated with the slide groove 52. A pull ring is slidably connected in the placement groove 53, and the opposite ends of the inner ring wall of the pull ring are respectively fixedly connected with a soft block 55 and a push block 56. Through the extrusion between the electric contact connector of the lithium battery 4 and the push block 56, the pull ring drives the soft block 55 to move toward the electric contact connector of the lithium battery 4, and then the electric contact connector of the lithium battery 4 is fixed in the fixing rod 51 through the friction between the soft block 55 and the electric contact connector of the lithium battery 4, and the connection between the fixing plate 2 and the lithium battery 4 is performed through the friction.

[0043] See also Figure 4 and Figure 7 The push block 56 is partially inserted into the slide groove 52, and the bottom end of the push block 56 is set as an arc surface. A first spring 57 is provided between the pull ring and the inner wall of the placement groove 53, and the two ends of the first spring 57 are respectively slidably connected with the pull ring and the inner wall of the placement groove 53. The first spring 57 is a hard spring. The push block 56 with an arc surface facilitates the lithium battery 4 to push the pull ring, and the pull ring is reset by the first spring 57.

[0044] See also Figure 1-Figure 3, indicator light 6, indicator light 6 is installed at the top of the fixing plate 2, and a through hole 8 is opened at the bottom of the fixing plate 2 corresponding to the position of the indicator light 6, and the two electric contact connectors of the indicator light 6 are inserted into the through hole 8. A first conductive rod 9 is inserted into the through hole 8, and the top of the first conductive rod 9 passes through the fixing plate 2 and is fixedly connected to one of the electric contact connectors of the indicator light 6. A second conductive rod 10 is fixedly inserted into the wall of the liquid storage tank 1, and the part of the second conductive rod 10 located outside the liquid storage tank 1 is inserted into the through hole 8 and contacts the other electric contact connector of the indicator light 6. The circuit connection between the indicator light 6, the first conductive rod 9, the second conductive rod 10 and the lithium battery 4 is completed by the installation between the fixing plate 2, the liquid storage tank 1 and the lithium battery 4.

[0045] See also Figure 5 , Figure 6 and Figure 8 , a cleaning assembly is provided at the opening in the liquid storage tank 1. The cleaning assembly includes a pressure ring 71, a liquid suction ring 72 and a scraper ring 73, which are arranged in the upper opening of the liquid storage tank 1 from top to bottom. The top of the liquid suction ring 72 contacts the bottom of the pressure ring 71, and the bottom of the liquid suction ring 72 is fixedly connected to the top of the scraper ring 73, and a soft pad 74 is fixedly connected to the inner ring wall of the pressure ring 71. The friction between the pressure ring 71 and the lithium battery 4 is increased by the soft pad 74, so that the pressure ring 71 is driven to move by the friction between the pressure ring 71 and the lithium battery 4.

[0046] See also Figure 5 , Figure 6 and Figure 8The outer peripheral wall of the scraper ring 73 is fixedly connected to the inner wall of the liquid storage tank 1, and the outer peripheral wall of the liquid suction ring 72 and the outer peripheral wall of the pressure ring 71 are both slidably connected to the inner wall of the liquid storage tank 1. A plurality of reflux grooves 78 are provided in the box wall of the liquid storage tank 1 corresponding to the liquid suction ring 72, and a guide bar 79 is fixedly connected in the reflux groove 78, and one end of the guide bar 79 close to the liquid suction ring 72 is fixedly connected to the liquid suction ring 72. Two limiting grooves 75 are relatively provided on the inner wall of the opening of the liquid storage tank 1, and two limiting blocks 76 are relatively fixedly connected on the outer ring wall of the pressure ring 71, and a part of each limiting block 76 is inserted into the corresponding limiting groove 75. A second spring 77 is provided between the limiting block 76 and the inner wall of the corresponding limiting groove 75, and the two ends of the second spring 77 are respectively fixedly connected to the inner wall of the corresponding limiting groove 75 and the corresponding limiting block 76, and the second spring 77 is a hard spring. The moving trajectory of the pressure ring 71 is limited by the limit block 76 to prevent the pressure ring 71 from falling off from the liquid storage tank 1, and the moved pressure ring 71 is reset by the second spring 77. In the process of pulling the lithium battery 4 out of the liquid storage tank 1, the scraper ring 73 scrapes off the conductive solution 3 on the outside of the lithium battery 4, and then the liquid suction ring 72 removes the residual conductive solution 3 on the outside of the lithium battery 4 after the scraper ring 73 cleans it. In the process of inserting the lithium battery 4 into the liquid storage tank 1, the pressure ring 71 will be driven to cooperate with the scraper to squeeze the liquid suction ring 72, and the conductive solution 3 in the liquid suction ring 72 will be squeezed into the guide bar 79 and flow back into the liquid storage tank 1 along the backflow hole.

[0047] In summary, the fixing plate 2 and the lithium battery 4 are fixed together through the connecting component 5, and then the lithium battery 4 is inserted into the liquid storage tank 1. If the lithium battery 4 leaks, the indicator light 6 will send out a warning signal, and when the lithium battery 4 is pulled out of the liquid storage tank 1, the cleaning component can automatically scrape off the conductive solution 3 outside the lithium battery 4 to avoid cleaning after the lithium battery 4 is pulled out of the liquid storage tank 1.

[0048] Embodiment 1: Figure 1-Figure 8 As shown, the fixing rod 51 is pulled out from the liquid storage tank 1, and then the two electric contact connectors of the lithium battery 4 are inserted into the slide groove 52 of the fixing rod 51. At the same time, the electric contact connector of the lithium battery 4 pushes the pull ring to move along the arc surface of the push block 56, and drives the soft block 55 to be close to the electric contact connector of the lithium battery 4. The lithium battery 4 is fixed to the lower end of the fixing plate 2 by the friction force between the soft block 55 and the electric contact connector of the lithium battery 4. When the lithium battery 4 is removed, the fixing plate 2 and the lithium battery 4 are directly pulled in reverse to directly separate the lithium battery 4 from the fixing plate 2. At the same time, the second spring 77 pushes the pull ring to slide and drives the push block 56 and the soft block 55 to reset.

[0049] Embodiment 2: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 7As shown, after the lithium battery 4 is installed, the lithium battery 4 is inserted into the liquid storage tank 1. During the process of inserting the lithium battery 4 into the liquid storage tank 1, the friction between the soft ring 58 and the lithium battery 4 drives the pressure ring 71 to move downward along the limiting groove 75. The pressure ring 71 cooperates with the scraper ring 73 to squeeze the liquid suction ring 72, and the conductive solution 3 in the liquid suction ring 72 is squeezed into the guide bar 79 to guide the conductive solution 3 into the reflux groove 78. The conductive solution 3 flows back into the liquid storage tank 1 along the reflux groove 78.

[0050] Embodiment 3: Figure 1 , Figure 2 and Figure 5 As shown, when the lithium battery 4 is pulled out from the liquid storage tank 1, the scraper ring 73 first contacts the outer wall of the lithium battery 4 to scrape off most of the conductive solution 3 on the outer shell of the lithium battery 4, and then the liquid suction ring 72 scrapes off the residual conductive solution 3 on the surface of the lithium battery 4.

[0051] Working principle: When using the device, install the lithium battery 4 according to the first embodiment, and then insert the lithium battery 4 into the liquid storage tank 1. At this time, if the lithium battery 4 leaks, the lithium battery 4 will supply power to the indicator light 6 through the conductive solution 3, the first conductive rod 9 and the second conductive rod 10, and the indicator light 6 warns the outside world. If the lithium battery 4 does not leak, the indicator light 6 will not send out a warning signal. After the lithium battery 4 is completely in contact with the conductive solution 3 in the liquid storage tank 1, the fixed device will be pulled to pull the lithium battery 4 out of the liquid storage tank 1. According to the third embodiment, the conductive solution 3 on the outside of the lithium battery 4 is scraped off during the process of pulling the lithium battery 4 out of the liquid storage tank 1, and then the lithium battery 4 is removed according to the first embodiment, and a new lithium battery 4 is replaced to repeat the above operation. During the process of inserting the new lithium battery 4 into the liquid storage tank 1, the conductive solution 3 in the liquid suction ring 72 is refluxed into the liquid storage tank 1 according to the second embodiment, and multiple devices can be used in combination to detect multiple lithium batteries 4 at one time.

[0052] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0053] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An intelligent leakage detection device for soft-pack lithium batteries capable of rapid batch detection, characterized in that: It comprises a liquid storage tank (1) and a fixing plate (2), wherein the fixing plate (2) is located at the top end of the opening of the liquid storage tank (1), and the liquid storage tank (1) is filled with a conductive solution (3); Also includes: A connecting assembly (5), wherein the lithium battery (4) is connected to the fixing plate (2) via the connecting assembly (5), and a gripping rod (11) is fixedly connected to the middle position of the top end of the fixing plate (2); An indicator light (6), the indicator light (6) being mounted on the top of the fixing plate (2), a through hole (8) being provided at the bottom of the fixing plate (2) at a position corresponding to the indicator light (6), and two electric contact connectors of the indicator light (6) being inserted into the through hole (8), one of the electric contact connectors being used for electrical connection with the lithium battery (4), and the other electric contact connector being used for electrical connection with the conductive solution (3), and a cleaning assembly (7) being provided at the opening in the liquid storage tank (1); The connecting assembly (5) comprises two fixing rods (51), one end of the fixing rod (51) is fixedly connected to the fixing plate (2), and the other end of the fixing rod (51) is provided with a slide groove (52), and the two contact connectors of the lithium battery (4) are respectively inserted into the corresponding slide grooves (52), and the outer peripheral side of the slide groove (52) is provided with a placement groove (53), and the placement groove (53) is communicated with the slide groove (52), and a pull ring (54) is slidably connected in the placement groove (53), and the opposite ends of the inner ring wall of the pull ring (54) are respectively fixedly connected with a soft block (55) and a push block (56); A portion of the push block (56) is inserted into the slide groove (52), and the bottom end of the push block (56) is arranged in an arc surface. A first spring (57) is arranged between the pull ring (54) and the inner wall of the placement groove (53), and two ends of the first spring (57) are respectively slidably connected to the pull ring (54) and the inner wall of the placement groove (53); A soft ring (58) is provided between the fixing rod (51) and the lithium battery (4), and the top end of the soft ring (58) is fixedly connected to the bottom end of the corresponding fixing rod (51), and the inner ring wall of the soft ring (58) is interference-fitted with the outer peripheral wall of the corresponding electric contact connector of the lithium battery (4); A first conductive rod (9) is inserted into the through hole (8), and the top end of the first conductive rod (9) passes through the fixing plate (2) and is fixedly connected to an electric contact connector of the indicator light (6). A second conductive rod (10) is fixedly inserted into the wall of the liquid storage tank (1), and the portion of the second conductive rod (10) located outside the liquid storage tank (1) is inserted into the through hole (8) and is in contact with another electric contact connector of the indicator light (6).

2. According to claim 1, a liquid leakage intelligent detection device for soft-pack lithium batteries capable of rapid batch detection is characterized in that: The cleaning assembly (7) comprises a pressure ring (71), a liquid suction ring (72) and a scraper ring (73), wherein the pressure ring (71), the liquid suction ring (72) and the scraper ring (73) are arranged in sequence from top to bottom in the upper end opening of the liquid storage tank (1), the outer peripheral wall of the scraper ring (73) is fixedly connected to the inner wall of the liquid storage tank (1), and the outer peripheral wall of the liquid suction ring (72) and the outer peripheral wall of the pressure ring (71) are both slidably connected to the inner wall of the liquid storage tank (1).

3. The intelligent leakage detection device for soft-pack lithium batteries capable of rapid batch detection according to claim 2, characterized in that: The top end of the liquid suction ring (72) contacts the bottom end of the pressure ring (71), and the bottom end of the liquid suction ring (72) is fixedly connected to the top end of the scraper ring (73). A soft pad (74) is fixedly connected to the inner ring wall of the pressure ring (71).

4. The intelligent leakage detection device for soft-pack lithium batteries capable of batch rapid detection according to claim 2, characterized in that: Two limiting grooves (75) are relatively formed on the inner wall of the opening of the liquid storage box (1); two limiting blocks (76) are relatively fixedly connected to the outer ring wall of the pressure ring (71); and a portion of each limiting block (76) is inserted into the corresponding limiting groove (75); a second spring (77) is provided between the limiting block (76) and the inner wall of the corresponding limiting groove (75); and two ends of the second spring (77) are respectively fixedly connected to the inner wall of the corresponding limiting groove (75) and the corresponding limiting block (76).

5. The intelligent leakage detection device for soft-pack lithium batteries capable of batch rapid detection according to claim 4, characterized in that: A plurality of reflux grooves (78) are provided in the wall of the liquid storage box (1) corresponding to the liquid suction ring (72), a guide strip (79) is fixedly connected in the reflux groove (78), and one end of the guide strip (79) close to the liquid suction ring (72) is fixedly connected to the liquid suction ring (72).

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