Battery airtightness detection device

Abstract

The utility model relates to the field of batteries, and discloses a battery airtightness detection device, which comprises a placement box, a quick release assembly is arranged on the inner wall of the rear side of the placement box, the quick release assembly comprises a connecting block, a supporting plate is fixedly connected to the front end of the lower surface of the connecting block, and a hydraulic cylinder is arranged on the lower surface of the supporting plate. The lower surface of the hydraulic cylinder is fixedly connected with a placing plate, an adjusting assembly is arranged on the lower surface of the placing plate, a clamping assembly is arranged on the upper surface of the placing plate, a through hole is formed in the upper surface of the placing plate, the adjusting assembly comprises a rotating shaft, and the rear surface of the rotating shaft is fixedly connected with a worm. According to the utility model, through the cooperation of the adjusting assemblies, the clamping assemblies on the two sides can be driven to synchronously contract to clamp the battery, and the two surfaces of the battery can be clamped and fixed at the same time without screwing the rotating handles one by one, so that the operation steps are simplified, and the use of workers is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of batteries, in particular to a battery air tightness detection device. Background Art

[0002] With the rapid development of science and technology and the transformation of energy structure, the safety and stability of batteries, as core components of various electronic devices, vehicles and energy storage systems, are particularly important. Among them, the airtightness of batteries, as one of the important indicators for evaluating their safety performance, is directly related to the battery's service life, performance stability and safety during use.

[0003] During the production and use of batteries, due to factors such as materials, processes or external environment, the batteries may have poor sealing problems, which may lead to leakage of electrolyte inside the battery, gas escape or entry of external moisture and impurities, thus affecting the performance and safety of the battery. For example, in lithium-ion batteries, poor sealing may lead to serious consequences such as electrolyte leakage, battery swelling and even explosion, causing serious quality problems and safety hazards to the product.

[0004] After searching, Chinese patent announcement number: CN219914775U discloses a liquid flow battery air tightness detection device, including a moving component and a placing component. First, the slider is moved by an electric slide rail to drive the lifting frame and the bottom plate to move outside the water tank. The movement of the lifting frame will drive the sealing plate to separate from the water tank, and then the lifting frame can drive the bottom plate to move downward, and the battery stack to be tested can be placed on the surface of the bottom plate. Then the bottom plate is driven up by the lifting frame, and the slider is driven to move by the electric slide rail again, so that the battery stack to be tested on the bottom plate is moved to the inside of the water tank, and then the sealing plate is tightly fitted with the water tank, and then water is injected into the water tank to immerse the battery stack to be tested, and gas is introduced into the battery stack to be tested through a pre-connected pipe, and then it is observed whether bubbles are generated on the surface of the battery stack to be tested, so as to facilitate the detection of the battery stack to be tested, and improve the safety of the battery stack to be tested, thereby improving practicality.

[0005] Although the device can detect the air tightness of the battery, when fixing the battery, the device needs to turn each handle in turn, which is cumbersome to operate. In addition, when the screw is used to drive the clamping plate to move and clamp the battery, the clamping force is difficult to control, and the battery surface is easily worn due to excessive clamping force. At the same time, the bottom plate of the device is soaked in water for a long time, which is easy to produce impurities such as scale and needs to be cleaned. However, the bottom plate of the device cannot be removed separately, which makes cleaning more troublesome. Therefore, a battery air tightness detection device is proposed to solve the above problems. Utility Model Content

[0006] In order to make up for the above shortcomings, the utility model provides a battery air tightness detection device, which aims to improve the problem that multiple handles need to be turned when fixing the battery, which is inconvenient to operate, and the clamping force is difficult to control when the clamping plate is driven by bolts to move and clamp the battery.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a battery air tightness detection device, comprising a placement box, a quick-release assembly is arranged on the inner wall of the rear side of the placement box, the quick-release assembly comprises a connecting block, the front end of the lower surface of the connecting block is fixedly connected to a support plate, the lower surface of the support plate is provided with a hydraulic cylinder, the lower surface of the hydraulic cylinder is fixedly connected to a placement plate, the lower surface of the placement plate is provided with an adjustment assembly, the upper surface of the placement plate is provided with a clamping assembly, the upper surface of the placement plate is provided with a through hole, the adjustment assembly comprises a rotating shaft, the rear surface of the rotating shaft is fixedly connected to a worm, the lower surface of the placement plate is rotatably connected to a rotating rod, the middle section of the outer wall of the rotating rod is fixedly connected to a worm gear, and the lower surface of the rotating rod is fixedly connected to a rotating plate.

[0008] As a further description of the above technical solution:

[0009] The adjustment assembly also includes a connecting plate, and the right end of the upper surface of the connecting plate is rotatably connected to a sliding rod.

[0010] As a further description of the above technical solution:

[0011] The clamping assembly comprises a supporting block, the inner wall of the supporting block is elastically connected to a round rod via a compression spring, and the left surface of the round rod is fixedly connected to a clamping plate.

[0012] As a further description of the above technical solution:

[0013] The quick-release assembly also includes a fixed block, the rear surface of the fixed block is fixedly connected to the inner wall of the rear side of the placement box, the upper surface of the fixed block is provided with a card slot, the right surface of the fixed block passes through and is slidably connected with a push plate, the rear end of the lower surface of the connecting block is fixedly connected with a card block, and the inner wall of the card block is elastically connected to the limit block through a limit spring.

[0014] As a further description of the above technical solution:

[0015] The rotating shaft passes through and is rotatably connected to the front surface of the placement plate, the worm wheel and the worm are meshed, and multiple groups of through holes are arranged, and the multiple groups of through holes are evenly distributed in an array on the upper surface of the placement plate.

[0016] As a further description of the above technical solution:

[0017] The left end of the lower surface of the connecting plate is hinged to the right end of the upper surface of the rotating plate, and the sliding rod penetrates and is slidably connected to the upper surface of the placing plate.

[0018] As a further description of the above technical solution:

[0019] The lower surface of the support block is fixedly connected to the upper surface of the sliding rod, the round rod passes through and is slidably connected to the left surface of the support block, one end of the compression spring is fixedly connected to the right surface of the round rod, and the other end of the compression spring is fixedly connected to the inner wall of the right side of the support block.

[0020] As a further description of the above technical solution:

[0021] The push plate is arranged in an I-shape, the card block is inserted into the inner wall of the card slot, the limit block passes through and is slidably connected to the right surface of the card block, one end of the limit spring is fixedly connected to the left surface of the limit block, the other end of the limit spring is fixedly connected to the inner wall on the left side of the card block, the lower surface of the limit block is opened as an inclined surface, and the limit block is inserted into the inner wall of the fixed block.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, by adjusting the cooperation of the components, the clamping components on both sides can be driven to contract synchronously to clamp the battery, and the two sides of the battery can be clamped and fixed at the same time without turning the handle one by one, which simplifies the operation steps and is convenient for the staff to use.

[0024] 2. In the utility model, through the cooperation of the support block, the compression spring, the round rod and the clamping plate, when the clamping force is too large, the compression spring will shrink and deform to reduce the force acting on the battery, which can effectively prevent the problem of battery wear caused by excessive clamping force and improve the practicality of the device.

[0025] 3. In the utility model, through the cooperation of the quick-release assembly, the support plate, the hydraulic cylinder and the placement plate can be flexibly disassembled and installed from the placement box, which is convenient for cleaning the support plate, the hydraulic cylinder and the placement plate, and effectively simplifies the maintenance process of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a front view schematic diagram of the three-dimensional structure of the overall device in the utility model;

[0027] Figure 2 It is a schematic diagram of the disassembly of the three-dimensional structure of the placement box, the support plate, the hydraulic cylinder and the placement plate in the utility model;

[0028] Figure 3 It is a cross-sectional schematic diagram of the three-dimensional structure of the placement plate and the support block in the utility model;

[0029] Figure 4 It is a schematic cross-sectional diagram of the three-dimensional structure of the clamping block and the fixing block in the utility model.

[0030] Legend:

[0031] 1. Placement box; 2. Support plate; 3. Hydraulic cylinder; 4. Placement plate; 51. Rotating shaft; 52. Worm; 53. Worm wheel; 54. Rotating rod; 55. Rotating plate; 56. Connecting plate; 57. Sliding rod; 61. Support block; 62. Compression spring; 63. Round rod; 64. Clamp; 71. Connecting block; 72. Block; 73. Limit spring; 74. Limit block; 75. Fixed block; 76. Push plate; 701. Card slot. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] Reference Figure 1 - Figure 3, The utility model provides an embodiment: a battery air tightness detection device, including a placement box 1 for supporting the overall device, the battery to be detected and the detection water can be placed in the placement box 1, and the inner wall of the rear side of the placement box 1 is provided with a quick-release assembly, and the quick-release assembly includes a connecting block 71, and the front end of the lower surface of the connecting block 71 is fixedly connected to a support plate 2, and the connecting block 71 and the support plate 2 will move synchronously, and the lower surface of the support plate 2 is provided with a hydraulic cylinder 3, and the hydraulic cylinder 3 is a prior art and can be implemented by technicians in this field. Since it is a prior art, it will not be described in detail in this case. The lower surface of the hydraulic cylinder 3 is fixedly connected to a placement plate 4, and the hydraulic cylinder 3 can drive the placement plate 4 to move longitudinally, and the lower surface of the placement plate 4 is provided with an adjustment assembly, and the upper surface of the placement plate 4 is provided with a clamping assembly, and the clamping assembly is provided with two groups, which are symmetrically distributed with the center line of the placement plate 4. The adjusting component can change the position of the clamping component, and the clamping component is used to clamp and fix the battery. The two sets of clamping components can clamp and fix the battery from two directions at the same time, which is convenient for the staff to operate. A through hole is opened on the upper surface of the placement plate 4, and the through hole can allow water to pass through. The adjusting component includes a rotating shaft 51, and a worm 52 is fixedly connected to the rear surface of the rotating shaft 51. Rotating the rotating shaft 51 can drive the worm 52 to rotate. The lower surface of the placement plate 4 is rotatably connected to a rotating rod 54, and the middle section of the outer wall of the rotating rod 54 is fixedly connected to a worm wheel 53. The worm wheel 53 and the worm 52 are prior art and can be implemented by technicians in this field. Since it is prior art, it will not be described in detail in this case. There is self-locking between the worm wheel 53 and the worm 52, that is, the worm 52 can drive the worm wheel 53 to rotate, but the worm wheel 53 cannot drive the worm 52 to rotate. The lower surface of the rotating rod 54 is fixedly connected to a rotating plate 55.

[0034] Reference Figure 1 - Figure 3 The adjustment assembly also includes a connecting plate 56, and the right end of the upper surface of the connecting plate 56 is rotatably connected to a slide bar 57, and when the connecting plate 56 rotates, it drives the slide bar 57 to move horizontally.

[0035] Reference Figure 1 - Figure 3 The clamping assembly includes a support block 61, the inner wall of the support block 61 is elastically connected to a round rod 63 through a compression spring 62, the left surface of the round rod 63 is fixedly connected to a clamping plate 64, and the left surface of the clamping plate 64 is fixed to a rubber pad. The rubber pad is soft in texture and can prevent wear on the battery surface. The rubber pad has strong friction and can ensure the stability of the clamping.

[0036] Reference Figure 1 , Figure 4The quick-release assembly also includes a fixing block 75, the rear surface of which is fixedly connected to the inner wall of the rear side of the placement box 1, and the placement box 1 provides support for the fixing block 75. A card slot 701 is provided on the upper surface of the fixing block 75, and a push plate 76 is penetrated and slidably connected to the right surface of the fixing block 75. The push plate 76 slides horizontally, and a card block 72 is fixedly connected to the rear end of the lower surface of the connecting block 71. The card slot 701 and the card block 72 fit together, and the inner wall of the card block 72 is elastically connected to the limit block 74 through a limit spring 73.

[0037] Reference Figure 1 - Figure 3 The rotating shaft 51 passes through and is rotatably connected to the front surface of the placement plate 4. The front surface of the rotating shaft 51 is set to a convex shape for easy grasping. The worm wheel 53 and the worm 52 are meshed, and the worm 52 can drive the worm wheel 53 to rotate. There are multiple groups of through holes, and the multiple groups of through holes are evenly distributed in an array on the upper surface of the placement plate 4.

[0038] Reference Figure 1 - Figure 3 The left end of the lower surface of the connecting plate 56 is hinged to the right end of the upper surface of the rotating plate 55. When the rotating plate 55 rotates, the connecting plate 56 will be driven to rotate. The sliding rod 57 passes through and is slidably connected to the upper surface of the placement plate 4, and the sliding rod 57 slides horizontally.

[0039] Reference Figure 1 - Figure 3 The lower surface of the support block 61 is fixedly connected to the upper surface of the slide rod 57. When the slide rod 57 moves, it will drive the support block 61 to move synchronously. The round rod 63 penetrates and is slidably connected to the left surface of the support block 61, sliding laterally. One end of the compression spring 62 is fixedly connected to the right surface of the round rod 63, and the other end of the compression spring 62 is fixedly connected to the inner wall on the right side of the support block 61. When the round rod 63 moves to the right, it will squeeze the compression spring 62 to generate a reaction force.

[0040] Reference Figure 1 , Figure 4 The locking cam 77 is in the form of a latching member 72 which is secured on the locking cam 73 with respect to the support cam 74. The latching member 72 is secured on the support cam 73 with respect to the support cam 74. When the locking cam 77 is in the form of a latching member 72, the support cam 73 is secured on the support cam 74 with respect to the support cam 74.

[0041] Working principle: When the device is used, first drive the hydraulic cylinder 3 to pull the placement plate 4 upwards. When the placement plate 4 moves to the highest point, place the battery to be tested on the placement plate 4, then rotate the rotating shaft 51 to drive the worm 52 to rotate, the rotating worm 52 will drive the worm wheel 53 and the rotating rod 54 to rotate, the rotating rotating rod 54 will drive the rotating plate 55 to rotate, the rotating rotating plate 55 will drive the connecting plate 56 to swing, the swinging connecting plate 56 will drive the sliding rods 57 on both sides to move toward the middle of the placement plate 4, and the sliding rod 57 will drive the support block 61 and the compression spring when moving. 62, round rod 63, and clamping plate 64 move synchronously. During the movement, the clamping plate 64 will first contact the surface of the battery. When the clamping plates 64 on both sides clamp the battery, continue to rotate the shaft 51 to drive the support block 61 and the round rod 63 to continue to move toward the middle of the placement plate 4. During the movement, the compression spring 62 will be squeezed, and the reaction force of the compression spring 62 will push the round rod 63 and the clamping plate 64 to clamp the battery. The surface in direct contact with the battery is made of rubber, which is soft and has high friction, so it can ensure stable clamping while preventing wear on the battery surface.

[0042] After the clamping is completed, the hydraulic cylinder 3 is started to move the placement plate 4 downward, and the placement plate 4 moving downward will drive the battery to move synchronously, and then water is added to the placement box 1 to detect the air tightness of the battery. After the detection is completed, the hydraulic cylinder 3 is started to move the placement plate 4 and the battery upward, and then the rotating shaft 51 is rotated in the opposite direction to drive the worm 52, the worm wheel 53 and the rotating rod 54 to rotate in the opposite direction, and the rotating rod 54 rotating in the opposite direction will drive the rotating plate 55 to rotate in the opposite direction, and the rotating plate 55 rotating in the opposite direction will drive the connecting plate 56 to swing in the opposite direction, and the connecting plate 56 swinging in the opposite direction will drive the sliding rod 57, the support block 61, the compression spring 62, the round rod 63, and the clamping plate 64 on both sides to open synchronously to release the clamping limit of the battery. After the limit is released, the battery is removed.

[0043] When the support plate 2, hydraulic cylinder 3, and placement plate 4 need to be cleaned, the push plate 76 is pushed left to squeeze the limit block 74 so that the limit block 74 is retracted into the card block 72 to release the limit, and then the connecting block 71 is pulled upward to disengage the card block 72 from the card slot 701, completing the disassembly of the support plate 2, hydraulic cylinder 3, and placement plate 4, and then the support plate 2, hydraulic cylinder 3, and placement plate 4 are cleaned. After the cleaning is completed, the card block 72 is aligned with the card slot 701 and plugged in. During the plugging, the inclined surface of the limit block 74 will be squeezed by the fixed block 75, and the limit block 74 will move to the left and retract into the card block 72 to release the obstruction, and will also squeeze the limit spring 73 to produce a reaction force. When the card block 72 and the card slot 701 are plugged in, the fixed block 75 will release the squeezing of the limit block 74, and the reaction force of the limit spring 73 will push the limit block 74 to move right and plug in the fixed block 75 to form a limit, completing the installation of the support plate 2, hydraulic cylinder 3, and placement plate 4.

[0044] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or 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. A battery air tightness detection device, comprising a placement box (1), characterized in that: The inner wall of the rear side of the placement box (1) is provided with a quick-release assembly, and the quick-release assembly includes a connecting block (71), the front end of the lower surface of the connecting block (71) is fixedly connected to a support plate (2), the lower surface of the support plate (2) is provided with a hydraulic cylinder (3), the lower surface of the hydraulic cylinder (3) is fixedly connected to a placement plate (4), the lower surface of the placement plate (4) is provided with an adjustment assembly, the upper surface of the placement plate (4) is provided with a clamping assembly, the upper surface of the placement plate (4) is provided with a through hole, the adjustment assembly includes a rotating shaft (51), the rear surface of the rotating shaft (51) is fixedly connected to a worm (52), the lower surface of the placement plate (4) is rotatably connected to a rotating rod (54), the middle section of the outer wall of the rotating rod (54) is fixedly connected to a worm wheel (53), and the lower surface of the rotating rod (54) is fixedly connected to a rotating plate (55).

2. A battery air tightness detection device according to claim 1, characterized in that: The adjustment assembly also includes a connecting plate (56), and the right end of the upper surface of the connecting plate (56) is rotatably connected to a sliding rod (57).

3. A battery air tightness detection device according to claim 1, characterized in that: The clamping assembly comprises a support block (61), the inner wall of the support block (61) is elastically connected to a round rod (63) via a compression spring (62), and the left surface of the round rod (63) is fixedly connected to a clamping plate (64).

4. A battery air tightness detection device according to claim 1, characterized in that: The quick-release assembly also includes a fixed block (75), the rear surface of the fixed block (75) is fixedly connected to the inner wall of the rear side of the placement box (1), the upper surface of the fixed block (75) is provided with a card slot (701), the right surface of the fixed block (75) is penetrated and slidably connected with a push plate (76), the rear end of the lower surface of the connecting block (71) is fixedly connected with a card block (72), and the inner wall of the card block (72) is elastically connected to the limit block (74) through a limit spring (73).

5. A battery air tightness detection device according to claim 1, characterized in that: The rotating shaft (51) passes through and is rotatably connected to the front surface of the placement plate (4); the worm wheel (53) and the worm (52) are meshed; a plurality of groups of through holes are provided, and the plurality of groups of through holes are evenly distributed in an array on the upper surface of the placement plate (4).

6. A battery air tightness detection device according to claim 2, characterized in that: The left end of the lower surface of the connecting plate (56) is hinged to the right end of the upper surface of the rotating plate (55), and the sliding rod (57) penetrates and is slidably connected to the upper surface of the placing plate (4).

7. A battery air tightness detection device according to claim 3, characterized in that: The lower surface of the support block (61) is fixedly connected to the upper surface of the sliding rod (57), the round rod (63) passes through and is slidably connected to the left surface of the support block (61), one end of the compression spring (62) is fixedly connected to the right surface of the round rod (63), and the other end of the compression spring (62) is fixedly connected to the inner wall on the right side of the support block (61).

8. A battery air tightness detection device according to claim 4, characterized in that: The push plate (76) is arranged in an I-shape, the clamping block (72) is inserted into the inner wall of the clamping slot (701), the limit block (74) passes through and is slidably connected to the right surface of the clamping block (72), one end of the limit spring (73) is fixedly connected to the left surface of the limit block (74), and the other end of the limit spring (73) is fixedly connected to the inner wall on the left side of the clamping block (72), the lower surface of the limit block (74) is opened as an inclined surface, and the limit block (74) is inserted into the inner wall of the fixed block (75).

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