Battery diaphragm extension device

Abstract

The invention belongs to the technical field of battery manufacturing, and particularly relates to a battery diaphragm extending device which comprises a lifting device fixedly assembled at the top of a base station, a lifting table is fixedly assembled on one side of the lifting device, and connecting plates are fixedly assembled at the top of the base station and the bottom of the lifting table. A simulation bin for enclosing a diaphragm is fixedly connected between the two connecting plates; according to the invention, through the movement of the diaphragm discharging frame, a plurality of diaphragms can be brought into the simulation bin in batches to realize the batch tensile test of the diaphragms, the opening and closing of the electromagnetic valve can be controlled, and a heating test solution in the multichannel sprayer is sprayed into the bin when the simulation bin is closed to realize the performance test of the diaphragms in a complex environment; the sealing door can be driven to control the on-off of the air volume of the suction filter, so that when the sealing door is closed and opened, the solution gas in the simulation bin is blocked and sucked respectively, the dispersion range of the solution gas is controlled, and the harm to a human body is prevented.

Description

Technical Field

[0001] The invention belongs to the technical field of battery manufacturing, and in particular relates to a battery diaphragm extending device. Background Art

[0002] Battery separator refers to a layer of separator material between the positive and negative electrodes of the battery. It is a very critical part of the battery and has a direct impact on the safety and cost of the battery. Its main function is to isolate the positive and negative electrodes and prevent the electrons in the battery from passing freely, allowing the ions in the electrolyte to pass freely between the positive and negative electrodes. With the continuous development of lithium battery technology, the separator stretching production line is also constantly improving and perfecting to meet the needs of lithium batteries of different types and specifications, and the battery separator stretching device is a device specially used to test the mechanical properties of battery separator materials. By applying a certain tensile load, the deformation, tensile strength, tensile modulus and other parameters of the separator under different tensile conditions are measured to ensure the quality of the separator, which provides an important basis for the design and production of batteries and promotes the progress and development of the battery industry.

[0003] The inventors found that during actual testing, the battery diaphragm extension device in the prior art can only clamp one diaphragm at a time, and the operation repetition rate is high. When faced with a large number of diaphragm samples, the test efficiency is relatively low. In addition, the battery diaphragm extension device only focuses on the basic mechanical properties of the diaphragm, and lacks the ability to simulate complex environments, such as high temperature, high humidity, corrosive environments, etc. It cannot detect the performance and changes of the diaphragm used in complex environments, which limits the comprehensive evaluation of the diaphragm material. Summary of the invention

[0004] The object of the present invention is to provide a battery diaphragm extension device. Through the movement of the film rack, not only can a plurality of diaphragms be brought into the simulation chamber in batches so that a pair of clamps clamp the diaphragms to realize batch tensile testing of the diaphragms, but also the telescopic frame extrusion pressure sensor can be controlled to control the opening and closing of the solenoid valve through the sensor signal, so that when the simulation chamber is closed, the heated solution for simulating environmental conditions in the multi-channel sprayer is sprayed into the chamber, so as to realize the testing of the performance and changes of the diaphragm under a complex environment, and the sealing door can be driven to control the on and off of the air volume of the suction filter, so as to realize the sealing and suction of the solution gas in the simulation chamber when the sealing door is closed and opened, respectively, to control the diffusion range of the solution gas and prevent harm to the human body.

[0005] The technical solution adopted by the present invention is as follows: A battery diaphragm extension device, comprising a lifting device fixedly assembled on the top of a base, a lifting platform fixedly assembled on one side of the lifting device, a connecting plate fixedly assembled on the top of the base and the bottom of the lifting platform, a simulation chamber for enclosing a diaphragm fixedly connected between the two connecting plates, a bellows fixedly connected to the middle of the simulation chamber, a plurality of clamping plates 2 equidistantly slidably connected on one side of the connecting plate and at one end of the simulation chamber, a linear telescopic mechanism for controlling the movement of the clamping plates 2 fixedly assembled at both ends of the simulation chamber, an opening for the diaphragm to pass through is provided on one side of the simulation chamber and the bellows; A sealing door is symmetrically slidably provided on one side of the simulation warehouse, and a spring telescopic mechanism for controlling the opening and closing of the sealing door is symmetrically assembled on both sides of the lifting device, and the spring telescopic mechanism includes a telescopic frame fixedly assembled on both sides of the lifting device, and a pressure sensor is fixedly assembled on one side of the lifting device, and one end of one of the telescopic frames is fixedly connected to a pressure plate for squeezing the pressure sensor, and a suction filter is fixedly assembled on the outer wall of one side of the lifting device, and the suction filter is fixedly connected to the simulation warehouse through a suction pipe at one end, and a sliding shielding mechanism for controlling the on and off air volume of the suction filter is provided on one side of the lifting device, and both sides of the lifting device are symmetrically fixedly connected to limit columns; A film discharge frame is slidably provided on one side of the lifting device, and the side walls at both ends of the film discharge frame are fixedly connected with sliding arms, and the film discharge frame is slidably connected to the limit column through the sliding arms, and a window is provided through the middle of the film discharge frame, and a fixed frame 2 is fixedly assembled on both sides of the film discharge frame and between the two sliding arms, and a plurality of rollers for squeezing the telescopic frame are equidistantly rotated and assembled at one end of the fixed frame 2, and a combing clamping mechanism for temporarily fixing the diaphragm is provided at one end of the film discharge frame and the window, and the combing clamping mechanism It comprises a plurality of levers elastically and telescopically assembled on the top of the film row frame, one end of the lever is fixedly connected to a clamping plate three at one side of the top of the window, a clamping plate four is fixedly connected to the top of the window and one side of the clamping plate three, a sliding rod is slidably connected to the side wall of the film row frame, a connecting plate is fixedly connected to the middle of the sliding rod and located below the clamping plate three, a plurality of clamping rods for combing the diaphragm are fixedly connected to one side of the connecting plate, and a clamping plate five for the clamping rods to be embedded is symmetrically fixedly connected to the bottom of the window; A heating module is fixedly assembled on the top of the lifting platform, a multi-channel sprayer is fixedly assembled on the top of the heating module, a transfer box is fixedly assembled on the end of the heating module opposite to the temperature sensor, a plurality of liquid storage bins are provided inside the multi-channel sprayer, a mixing bin is provided below the liquid storage bin, a heating bin is provided below the mixing bin, a plurality of heating rods are electrically assembled equidistantly on one side of the heating module, the heating rods are fixedly arranged inside the heating bin, the transfer box is through-connected with the mixing bin and the heating bin at the same time, a liquid spray pipe is fixedly connected on one side of the lifting platform, one end of the liquid spray pipe is fixedly connected with the simulation bin, the other end of the liquid spray pipe is fixedly connected with the bottom of the heating bin, a solenoid valve is fixedly assembled on one end of the liquid spray pipe and located on the top of the lifting platform, a wireless control module for receiving the pressure signal of the pressure sensor is fixedly assembled on one end of the solenoid valve; The linear telescopic mechanism includes an electric cylinder, and a clamping plate 1 is symmetrically arranged on the outer wall of the output end of the electric cylinder, one of the clamping plates 1 is fixedly connected to the output end of the electric cylinder, and the other clamping plate 1 is fixedly connected to the simulation bin, and an inner sealing plate is fixedly connected to the bottom of the clamping plate 1 and located inside the simulation bin, and the clamping plates 2 are movably sleeved on the outer wall of the output end of the electric cylinder, and several of the clamping plates 2 and the clamping plate 1 are foldably connected via a folding connecting plate.

[0006] The inner sealing plate is used to seal the gap between the first clamping plate and the simulation chamber when the first clamping plate moves to clamp the diaphragm, and the two sealing doors are movably engaged.

[0007] A fixing frame 1 is fixedly connected to the outer wall of the lifting device and located on one side of the telescopic frame. The telescopic frame is elastically connected to the fixing frame 1 through a spring column. One end of the telescopic frame is fixedly connected to the sealing door. One end of the telescopic frame is fixedly connected to a seesaw.

[0008] The sliding shielding mechanism includes a sliding cover slidably assembled on the top of the suction filter, a push plate is symmetrically fixedly connected to one side of one of the telescopic frames and located above the suction filter, a protrusion is fixedly connected to one side of the sliding cover and located between the two push plates, and a closing plate is fixedly connected to one end of the sliding cover and located inside the suction filter.

[0009] The limiting columns are arranged as a symmetrical group, each group consists of at least two columns. A embedding groove is provided through the middle of the limiting columns. A magnetic rod 2 for magnetically engaging with the embedding groove is fixedly connected to the inner wall of one end of the sliding arm. A finger groove is provided on one side of the splint 4.

[0010] The clamping plate 4 is fixedly connected with a pick plate on the side opposite to the finger groove, and the bottom of the pick plate is fixedly assembled with a magnetic rod 1 for magnetically engaging with the connecting plate, and a groove for the fixing frame 2 to pass through is opened on one side of the sealing door.

[0011] A cover plate is movably fastened on the top of the multi-channel sprayer, a temperature sensor is electrically assembled on one end of the heating module, a temperature controller is electrically assembled on one side of the temperature sensor, a display screen is fixedly assembled on one side of the multi-channel sprayer, and the thermostat is electrically connected to the display screen.

[0012] A liquid level meter is fixedly assembled inside the liquid storage bin, a motor is fixedly assembled on one side of the multi-channel sprayer, a stirring blade is symmetrically fixedly connected to the output end of the motor and located inside the heating bin, and a stirring wing plate is fixedly connected between the two stirring blades.

[0013] An on-off valve for controlling the opening and closing of the mixing chamber is fixedly assembled on one side of the multi-channel sprayer, an on-off controller for controlling the on-off valve is fixedly assembled on one side of the multi-channel sprayer, the on-off valve is electrically connected to the on-off controller, and a baffle is elastically assembled inside the on-off valve.

[0014] The technical effects achieved by the present invention are: The present invention can bring a plurality of diaphragms into the simulation chamber in batches by moving the film row frame, so that a pair of clamps clamps the diaphragms, thereby realizing batch tensile testing of the diaphragms, reducing the operation repetition rate, and improving the testing efficiency; The present invention can control the telescopic frame to squeeze the pressure sensor through the movement of the film discharge frame, and transmit the sensor signal to the wireless control module to control the opening and closing of the solenoid valve, so that the solution heated in the multi-channel sprayer for simulating environmental conditions is sprayed into the simulation chamber, so as to test the performance and changes of the diaphragm in a complex environment, making the evaluation and test of the diaphragm material more comprehensive; The present invention can control the opening and closing of the sealing door and the start and close of the suction filter through the movement of the film discharge rack, so that when the sealing door is closed, the simulation chamber is sealed to prevent the solution in the multi-channel sprayer from leaking when spraying; when the sealing door is opened, the suction filter can suck the residual gas in the simulation chamber to control the diffusion range of the solution gas and prevent harm to the human body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is an overall appearance diagram of a battery diaphragm extension device provided in an embodiment of the present invention; Figure 2 yes Figure 1 A partial enlarged view of the middle A; Figure 3 yes Figure 1A partial enlarged view of point B in the middle; Figure 4 yes Figure 1 A partial enlarged view of point C in the middle; Figure 5 yes Figure 1 A partial enlarged view of point D in the middle; Figure 6 yes Figure 5 A partial enlarged view of point E in the middle; Figure 7 is a disassembled diagram of the main structure of the battery diaphragm extension device provided in an embodiment of the present invention; Figure 8 yes Figure 7 A partial enlarged view of the F in the middle; Fig. 9 yes Figure 7 A partial enlarged view of the G in the middle; Fig.10 yes Figure 7 A partial enlarged view of the H in the middle; Fig.11 yes Fig.10 A partial enlarged view of point I in the middle; Fig.12 yes Figure 7 A partial enlarged view of the K in the middle; Fig.13 is a structural exploded view of a multi-channel sprayer provided in an embodiment of the present invention; Fig.14 yes Fig.13 A partial enlarged view of the J in the middle; Fig.15 is a structural independent diagram of a sliding cover provided by an embodiment of the present invention; Fig.16 It is a partial display diagram of the diaphragm provided by the embodiment of the present invention being clamped by the clamping rod and the clamping plate 5; Fig.17 It is a structural independent display diagram of the simulation chamber provided in an embodiment of the present invention.

[0016] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Base; 101. Lifting device; 102. Lifting platform; 103. Connecting plate; 104. Simulation chamber; 105. Electric cylinder; 106. Clamp one; 107. Folding connecting plate; 108. Clamp two; 109. Bellows; 110. Pressure sensor; 111. Sealing door; 112. Groove; 113. Telescopic frame; 114. Spring column; 115. Fixed frame one; 116. Rocker; 117. Pressing plate; 118. Limiting column; 119. Embedded groove; 120. Push plate; 121. Inner sealing plate; 2. Heating module; 201. Multi-channel sprayer; 202. Cover plate; 203. Temperature sensor; 204. Temperature controller; 205. Transfer box; 206. Display screen; 207. Motor; 208. Spray pipe; 209. Opening and closing control device; 210, opening and closing valve; 211, solenoid valve; 212, wireless control module; 213, suction filter; 214, suction pipe; 215, bump; 216, stirring blade; 217, stirring wing plate; 218, heating rod; 219, liquid storage tank; 220, liquid level meter; 221, mixing tank; 222, closing plate; 223, sliding cover; 224, heating tank; 225, baffle; 3, film discharge rack; 301, window; 302, sliding arm; 303, fixed rack 2; 304, roller; 305, lever; 306, clamping plate 3; 307, sliding rod; 308, connecting plate; 309, clamping rod; 310, clamping plate 4; 311, finger groove; 312, pick plate; 313, magnetic suction rod 1; 314, clamping plate 5; 315, magnetic suction rod 2. DETAILED DESCRIPTION

[0017] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with embodiments. It should be understood that the following text is only used to describe one or several specific embodiments of the present invention, and does not strictly limit the scope of protection of the specific claims of the present invention.

[0018] like Figure 1 , Fig.10 As shown, a battery diaphragm extension device includes a lifting device 101 fixedly assembled on the top of a base 1, and both sides of the lifting device 101 are symmetrically fixedly connected to limit posts 118, and the limit posts 118 are arranged in a symmetrical group, and a group has at least two, and a middle part of the limit post 118 is penetrated by an embedding groove 119; Embodiment 1: See attached Figure 1 , Figure 5-Figure 8 , Fig.12 , Fig.16A film discharge frame 3 is slidably provided on one side of the lifting device 101, and the side walls at both ends of the film discharge frame 3 are fixedly connected with sliding arms 302. The film discharge frame 3 is slidably connected to the limiting column 118 through the sliding arms 302, and the inner wall of one end of the sliding arm 302 is fixedly connected with a magnetic rod 315 for magnetically engaging with the embedding groove 119. A window 301 is provided through the middle of the film discharge frame 3, and a fixing frame 303 is fixedly assembled on both sides of the film discharge frame 3 and between the two sliding arms 302. A combing and clamping mechanism for temporarily fixing the diaphragm is provided on the film discharge frame 3 and one end of the window 301, and the combing and clamping mechanism includes a plurality of levers 305 elastically and telescopically assembled on the top of the film discharge frame 3, and one end of the lever 305 is located on one side of the top of the window 301 A clamping plate three 306 is fixedly connected, a clamping plate four 310 is fixedly connected to the top of the window 301 and located on one side of the clamping plate three 306, a finger groove 311 is opened on one side of the clamping plate four 310, a sliding rod 307 is slidably connected to the side wall of the film discharge rack 3, a connecting plate 308 is fixedly connected to the middle of the sliding rod 307 and located below the clamping plate three 306, one side of the connecting plate 308 is fixedly connected to a plurality of clamping rods 309 for combing the membrane, a clamping plate four 310 is located on the side opposite to the finger groove 311 and is fixedly connected to a pick plate 312, a magnetic rod one 313 for magnetically engaging with the connecting plate 308 is fixedly assembled at the bottom of the pick plate 312, and a clamping plate five 314 for embedding the clamping rod 309 is symmetrically fixedly connected to the bottom of the window 301.

[0019] According to the above structure, when the film discharge rack 3 is away from the lifting device 101, the position of the sliding arm 302 and the film discharge rack 3 is temporarily fixed by the magnetic attraction between the second magnetic attraction rod 315 and the embedded groove 119, and the third clamping plate 306 is driven away from the fourth clamping plate 310 by toggling the lever 305, and one end of the diaphragm is placed between the third clamping plate 306 and the fourth clamping plate 310, and the finger groove 311 is convenient for finger operation, and then the lever 305 is released to allow the third clamping plate 306 to clamp the diaphragm. At this time, the diaphragm is located between the two clamping rods 309, and the pick plate 312 adsorbs the connecting plate 308 through the magnetic attraction rod 1 313 The sliding rod 307 is fixed, and the connecting plate 308 is moved downward to drive the connecting plate 308 to move downward. The clamping rod 309 combs the diaphragm vertically during the descent. When the connecting plate 308 slides to the bottom of the film discharge rack 3, the diaphragm is slightly adjusted so that one end of the diaphragm enters between the two clamping plates 314. The connecting plate 308 continues to slide downward to make the clamping rod 309 embed into the clamping plate 314. The diaphragm is temporarily clamped by the fit between the clamping rod 309 and the clamping plate 314. Then, the film discharge rack 3 is pushed toward the lifting device 101, and the magnetic suction rod 2 315 is disengaged from the embedding groove 119. The film discharge rack 3 moves to the simulation bin 104 with the diaphragm.

[0020] The working principle of the present invention is: one end of the diaphragm is clamped by the clamping plate three 306 and the clamping plate four 310, and the clamping rod 309 slides to the clamping plate five 314 for engagement, so that the diaphragm is combed and clamped and fixed at the other end, so that the film discharge rack 3 can transport the diaphragm in batches to the simulation bin 104.

[0021] Embodiment 2: See attached Figure 1 , Figure 3 , Figure 4 , Fig.17 A lifting platform 102 is fixedly assembled on one side of the lifting device 101, and a connecting plate 103 is fixedly assembled on the top of the base 1 and the bottom of the lifting platform 102. A simulation chamber 104 for enclosing the diaphragm is fixedly connected between the two connecting plates 103. A bellows 109 is fixedly connected to the middle of the simulation chamber 104. A plurality of clamping plates 108 are evenly slidably connected to one side of the connecting plate 103 and one end of the simulation chamber 104. A linear telescopic mechanism for controlling the movement of the clamping plates 108 is fixedly assembled at both ends of the simulation chamber 104. The linear telescopic mechanism includes an electric cylinder 105, and the outer wall of the output end of the electric cylinder 105 is symmetrically provided with clamping plates One clamping plate 106 is fixedly connected to the output end of the electric cylinder 105, and the other clamping plate 106 is fixedly connected to the simulation chamber 104. The bottom of the clamping plate 106 and the interior of the simulation chamber 104 are fixedly connected with an inner sealing plate 121. The second clamping plates 108 are all movably sleeved on the outer wall of the output end of the electric cylinder 105. Several second clamping plates 108 and the first clamping plate 106 are foldably connected through a folding connecting plate 107. The inner sealing plate 121 is used to seal the gap between the clamping plate 106 and the simulation chamber 104 when the clamping plate 106 moves to clamp the diaphragm. An opening for the diaphragm to pass through is opened on one side of the simulation chamber 104 and the bellows 109; See attached Figure 4 , Figure 5 , Figure 7 , Fig.10 , Fig.11 , Fig.15A sealing door 111 is symmetrically slidably provided on one side of the simulation warehouse 104, and the two sealing doors 111 are movably engaged. A spring telescopic mechanism for controlling the opening and closing of the sealing door 111 is symmetrically assembled on both sides of the lifting device 101. The spring telescopic mechanism includes a telescopic frame 113 fixedly assembled on both sides of the lifting device 101, and one end of the fixed frame 2 303 is equidistantly assembled with a plurality of rollers 304 for squeezing the telescopic frame 113. A fixed frame 115 is fixedly connected to the outer wall of the lifting device 101 and located on one side of the telescopic frame 113. The telescopic frame 113 is elastically connected to the fixed frame 115 through a spring column 114. One end of the telescopic frame 113 is fixedly connected to the sealing door 111, and one end of the telescopic frame 113 is fixedly connected to a seesaw 116. A suction filter 213 is fixedly assembled on the outer wall of one side of 1, and the suction filter 213 is fixedly connected to the simulation chamber 104 through a suction pipe 214 at one end. A sliding shielding mechanism for controlling the air volume of the suction filter 213 is provided on one side of the lifting device 101. The sliding shielding mechanism includes a sliding cover 223 slidably assembled on the top of the suction filter 213, and a push plate 120 is symmetrically fixedly connected to one side of one telescopic frame 113 and located above the suction filter 213, a protrusion 215 is fixedly connected to one side of the sliding cover 223 and located between the two push plates 120, a closing plate 222 is fixedly connected to one side of the sliding cover 223 and located at one end inside the suction filter 213, and a groove 112 for the fixed frame 2 303 to pass through is opened on one side of the sealing door 111.

[0022] According to the above structure, when the film discharge frame 3 slides toward the simulation warehouse 104 with the diaphragm, the roller 304 at one end of the fixed frame 303 squeezes the seesaw 116, so that the telescopic frame 113 moves away from the lifting device 101, and the spring column 114 expands and contracts accordingly. The movement of the telescopic frame 113 when squeezed is limited by the frame of the fixed frame 115 to ensure the stability of its movement. When the telescopic frame 113 moves, it drives the sealing door 111 to slide to one side of the simulation warehouse 104. The groove 112 prevents the sealing door 111 from colliding with the fixed frame 303 when moving. The position where the diaphragm is fixed is designed to correspond to the gap between each clamp plate 108 and clamp plate 1 106. After the diaphragm enters the simulation warehouse 104, it will be located on the clamp plate 108. The gap between the connecting plate 103 and the clamping plate 106 is formed between the connecting plate 103 and the clamping plate 106, and the clamping plate 4 310 and the connecting plate 308 are both located between the connecting plate 103 and the clamping plate 106. The frame of the window 301 is located in the opening of the simulation warehouse 104. The electric cylinder 105 is controlled by the switch to shrink its output end. The output end of the electric cylinder 105 drives a clamping plate 106 to move. The clamping plate 106 drives the clamping plate 2 108 to slide on the outer wall of the output end of the electric cylinder 105 through the folding connecting plate 107, and the folding connecting plate 107 is folded accordingly. The clamping plate 106 can drive the clamping plate 2 108 to slide to one side of the connecting plate 103 to clamp the diaphragm. The inner sealing plate 121 will also move with the clamping plate 106 to adjust the top of the simulation warehouse 104. The gap is sealed, and the film discharge frame 3 slides outward at this time. Due to the clamping of the clamping plate 106 and the clamping plate 2 108, the two ends of the diaphragm located on the outside of the clamping plate 106 will break, so that the film discharge frame 3 can slide out smoothly. After the film discharge frame 3 slides out of the simulation warehouse 104, the roller 304 no longer squeezes the telescopic frame 113, and the sealing door 111 is closed by the elastic force of the spring column 114. When the film discharge frame 3 slides toward the simulation warehouse 104 and squeezes the telescopic frame 113 to open the sealing door 111, the push plate 120 located at one end of one of the telescopic frames 113 moves away from the lifting device 101 as the telescopic frame 113 moves away from the lifting device 101. The push plate 120 will drive the protrusion 215 to slide the sliding cover 223, and the sliding of the sliding cover 223 will drive the closing The closing plate 222 moves and no longer blocks one end of the suction pipe 214, i.e., the air outlet at one end of the suction filter 213 is opened, so that the suction airflow generated by the suction filter 213 passes through the suction pipe 214 to suck the inside of the simulation chamber 104, and the bellows 109 divides the simulation chamber 104 into two parts, one part of which is fixed and cannot move by the connecting plate 103 on the top of the base 1, while the other part will rise and fall driven by the connecting plate 103 at the bottom of the lifting platform 102 to stretch the diaphragm. The bellows 109 can extend and retract when the connecting plate 103 drives the simulation chamber 104 to rise and fall (the connecting plate 103 and the simulation chamber 104 shown in the drawings of the present invention are the maximum stretching distances).

[0023] The working principle of the present invention is: the telescopic frame 113 is squeezed by the movement of the film discharge frame 3, so that the sealing door 111 and the closing plate 222 can slide open and close, and when the sealing door 111 is opened, the film discharge frame 3 can send the diaphragm into the simulation chamber 104 to be clamped by the clamp 1 106 and the clamp 2 108, and the suction filter 213 sucks the simulation chamber 104. When the sealing door 111 is closed, the suction airflow of the suction filter 213 is blocked to ensure that the simulation chamber 104 remains airtight when spraying the solution.

[0024] Embodiment three: See attached Figure 1-Figure 3 , Figure 7 , Fig. 9 , Fig.13 , Fig.14The top of the lifting platform 102 is fixedly assembled with a heating module 2, the top of the heating module 2 is fixedly assembled with a multi-channel sprayer 201, the top of the multi-channel sprayer 201 is movably buckled with a cover plate 202, one end of the heating module 2 is electrically assembled with a temperature sensor 203, one side of the temperature sensor 203 is electrically assembled with a temperature controller 204, one side of the multi-channel sprayer 201 is fixedly assembled with a display screen 206, the temperature controller 204 is electrically connected to the display screen 206, and the end of the heating module 2 that is located away from the temperature sensor 203 is fixedly assembled with a transfer box 20 5. The multi-channel sprayer 201 is provided with a plurality of liquid storage bins 219, a liquid level meter 220 is fixedly installed inside the liquid storage bins 219, a mixing bin 221 is provided below the liquid storage bins 219, a heating bin 224 is provided below the mixing bin 221, a plurality of heating rods 218 are electrically installed equidistantly on one side of the heating module 2, the heating rods 218 are fixedly installed inside the heating bin 224, a motor 207 is fixedly installed on one side of the multi-channel sprayer 201, and a stirring blade is symmetrically fixedly connected to the output end of the motor 207 and located inside the heating bin 224 216, a stirring wing plate 217 is fixedly connected between the two stirring blades 216, the transfer box 205 is connected to the mixing chamber 221 and the heating chamber 224 at the same time, a start-stop valve 210 for controlling the opening and closing of the mixing chamber 221 is fixedly assembled on one side of the multi-channel sprayer 201, and a start-stop controller 209 for controlling the start-stop valve 210 is fixedly assembled on one side of the multi-channel sprayer 201. The start-stop valve 210 is electrically connected to the start-stop controller 209, and a baffle 225 is elastically assembled inside the start-stop valve 210. A liquid spray pipe 224 is fixedly connected to one side of the lifting platform 102. 08, one end of the liquid spray pipe 208 is fixedly connected to the simulation chamber 104, and the other end of the liquid spray pipe 208 is fixedly connected to the bottom of the heating chamber 224. A solenoid valve 211 is fixedly assembled at one end of the liquid spray pipe 208 and located on the top of the lifting platform 102, and a pressure sensor 110 is fixedly assembled on one side of the lifting device 101, one end of one telescopic frame 113 is fixedly connected to a pressure plate 117 for squeezing the pressure sensor 110, and one end of the solenoid valve 211 is fixedly assembled with a wireless control module 212 for receiving the pressure signal of the pressure sensor 110.

[0025] According to the above structure, by opening the cover plate 202, a test solution for simulating a complex external environment, such as distilled water, hydrochloric acid solution, sodium chloride solution, sodium hydroxide solution, etc., can be injected into the liquid storage tank 219. The on-off controller 209 controls the baffle 225 of the on-off valve 210 to move in the mixing tank 221, open the leakage port between the mixing tank 221 and the liquid storage tank 219, and open the interface between the transfer box 205 and the mixing tank 221 at the same time. The solution in the liquid storage tank 219 leaks into the mixing tank 221 and enters the transfer box 205. The liquid level meter 220 measures the liquid level of the solution. When the leakage reaches a predetermined value, the on-off controller 209 controls the baffle 225 in the on-off valve 210 to close at the same time. The mixed solution passes through the transfer box 205 and enters the heating chamber 224. The heating module 2 heats the heating rod 218 to heat the solution in the heating chamber 224. The motor 207 controls the stirring blade 216 and the stirring wing plate 217 to rotate in the heating chamber 224 to make the solution heated more evenly. The mixed and heated solution can be sprayed onto the diaphragm in the simulation chamber 104 through the spray pipe 208. By heating the solution and spraying it on the surface of the diaphragm, the actual situation of the contact between the corrosive liquid and the diaphragm can be directly simulated. This direct contact method can It can more accurately reflect the corrosion conditions that the diaphragm may encounter in actual applications. The heated solution can also penetrate into the microporous structure of the diaphragm more quickly, accelerating the corrosion process. This helps to evaluate the corrosion resistance of the diaphragm in a short time and improve the test efficiency. After the heating rod 218 heats the solution in the heating chamber 224, the temperature sensor 203 detects the liquid temperature inside the heating chamber 224 and transmits the sensor signal to the temperature controller 204. The temperature controller 204 converts the sensor signal into a digital signal and displays the actual temperature on the display screen 206. In the process described above where the film rack 3 squeezes the telescopic rack 113 through the roller 304, when the roller 304 no longer squeezes the telescopic rack 113, The sealing door 111 is closed, and the pressure plate 117 at one end of the telescopic frame 113 will squeeze the pressure sensor 110. The pressure sensor 110 transmits the obtained pressure signal to the wireless control module 212. The wireless control module 212 controls the solenoid valve 211 to open, and the solution inside the heating chamber 224 can be sprayed into the simulation chamber 104 through the spray pipe 208. It should be noted that the multi-channel sprayer 201 mentioned in the present invention, which pressurizes the solution in the chamber through a power pump and atomizes and sprays the solution through an atomizing nozzle, is a prior art that is already available in actual applications. It is not shown in the accompanying drawings and does not represent the structural defects of the multi-channel sprayer 201.

[0026] The working principle of the present invention is: through the squeezing of the telescopic frame 113 by the film discharge frame 3, the pressure sensor 110 transmits the pressure signal to the wireless control module 212 to control the opening and closing of the solenoid valve 211, which is used to spray the mixed and heated environmental simulation solution in the multi-channel sprayer 201 onto the diaphragm inside the simulation chamber 104, thereby realizing the tensile test of the diaphragm under a specific environment.

[0027] The above is only a preferred embodiment of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the art unless otherwise specified and limited.

Claims

1. A battery diaphragm stretching device, comprising a lifting device (101) fixedly assembled on the top of a base (1), characterized in that: A lifting platform (102) is fixedly assembled on one side of the lifting device (101), a connecting plate (103) is fixedly assembled on the top of the base (1) and the bottom of the lifting platform (102), a simulation chamber (104) for enclosing a diaphragm is fixedly connected between the two connecting plates (103), a bellows (109) is fixedly connected to the middle of the simulation chamber (104), a plurality of second clamps (108) are equidistantly slidably connected on one side of the connecting plate (103) and at one end of the simulation chamber (104), a linear telescopic mechanism for controlling the movement of the second clamp (108) is fixedly assembled at both ends of the simulation chamber (104), and an opening for the diaphragm to pass through is opened on one side of the simulation chamber (104) and the bellows (109); A sealing door (111) is symmetrically slidably provided on one side of the simulation bin (104); a spring telescopic mechanism for controlling the opening and closing of the sealing door (111) is symmetrically assembled on both sides of the lifting device (101); the spring telescopic mechanism comprises a telescopic frame (113) fixedly assembled on both sides of the lifting device (101); a pressure sensor (110) is fixedly assembled on one side of the lifting device (101); one end of one of the telescopic frames (113) is fixedly connected to a pressing plate (117) for pressing the pressure sensor (110); a suction filter (213) is fixedly assembled on the outer wall of one side of the lifting device (101); the suction filter (213) is fixedly connected to the simulation bin (104) via a suction pipe (214) at one end; a sliding shielding mechanism for controlling the air volume of the suction filter (213) is provided on one side of the lifting device (101); and limiting columns (118) are symmetrically fixedly connected on both sides of the lifting device (101); A film discharge frame (3) is slidably provided on one side of the lifting device (101), and the side walls at both ends of the film discharge frame (3) are fixedly connected with sliding arms (302), and the film discharge frame (3) is slidably connected to the limiting column (118) through the sliding arms (302), and a window (301) is provided through the middle of the film discharge frame (3), and a second fixed frame (303) is fixedly assembled on both sides of the film discharge frame (3) and between the two sliding arms (302), and a plurality of rollers (304) for squeezing the telescopic frame (113) are equidistantly rotatably assembled at one end of the second fixed frame (303), and a combing clamping mechanism for temporarily fixing the diaphragm is provided at one end of the film discharge frame (3) and the window (301), and the combing clamping mechanism includes an elastic telescopic A plurality of levers (305) are assembled on the top of the film arrangement frame (3), one end of the lever (305) is fixedly connected to a clamping plate three (306) at one end and located on the top side of the window (301), a clamping plate four (310) is fixedly connected to the top of the window (301) and located on one side of the clamping plate three (306), a sliding rod (307) is slidably connected to the side wall of the film arrangement frame (3), a connecting plate (308) is fixedly connected to the middle of the sliding rod (307) and located below the clamping plate three (306), a plurality of clamping rods (309) for combing the diaphragm are fixedly connected to one side of the connecting plate (308), and a clamping plate five (314) for embedding the clamping rods (309) is symmetrically fixedly connected to the bottom of the window (301); A heating module (2) is fixedly assembled on the top of the lifting platform (102), a multi-channel sprayer (201) is fixedly assembled on the top of the heating module (2), a transfer box (205) is fixedly assembled on the end of the heating module (2) that is located away from the temperature sensor (203), a plurality of liquid storage bins (219) are provided inside the multi-channel sprayer (201), a mixing bin (221) is provided below the liquid storage bin (219), a heating bin (224) is provided below the mixing bin (221), a plurality of heating rods (218) are electrically assembled at equal distances on one side of the heating module (2), and the heating rods (218) are fixedly arranged on the heating bin. (224), the transfer box (205) is connected to the mixing bin (221) and the heating bin (224) at the same time, a liquid spraying pipe (208) is fixedly connected to one side of the lifting platform (102), one end of the liquid spraying pipe (208) is fixedly connected to the simulation bin (104), the other end of the liquid spraying pipe (208) is fixedly connected to the bottom of the heating bin (224), one end of the liquid spraying pipe (208) is fixedly assembled with a solenoid valve (211) located at the top of the lifting platform (102), and one end of the solenoid valve (211) is fixedly assembled with a wireless control module (212) for receiving the pressure signal of the pressure sensor (110); One end of the membrane is clamped by the clamping plate three (306) and the clamping plate four (310), and the clamping rod (309) is slid toward the clamping plate five (314) for engagement, so that the membrane is combed and then clamped and fixed at the other end, so that the membrane discharging rack (3) can transport the membrane in batches into the simulation chamber (104); The telescopic frame (113) is squeezed by the movement of the film discharge frame (3), so that the sealing door (111) and the closing plate (222) can slide open and close, so that the film discharge frame (3) can send the diaphragm into the simulation chamber for clamping and fixing, and the suction filter (213) can suck the solution gas in the simulation chamber (104); By squeezing the telescopic frame (113) by the film discharge frame (3), the pressure sensor (110) transmits a pressure signal to the wireless control module (212) to control the opening and closing of the solenoid valve (211), so as to spray the mixed and heated environmental simulation solution in the multi-channel sprayer (201) onto the diaphragm inside the simulation chamber (104).

2. A battery diaphragm stretching device according to claim 1, characterized in that: The linear telescopic mechanism comprises an electric cylinder (105), and a clamping plate (106) is symmetrically arranged on the outer wall of the output end of the electric cylinder (105), wherein one of the clamping plates (106) is fixedly connected to the output end of the electric cylinder (105), and the other clamping plate (106) is fixedly connected to the simulation bin (104), and an inner sealing plate (121) is fixedly connected to the bottom of the clamping plate (106) and located inside the simulation bin (104), and the clamping plates (108) are movably sleeved on the outer wall of the output end of the electric cylinder (105), and a plurality of the clamping plates (108) and the clamping plates (106) are foldably connected via a folding connecting plate (107).

3. A battery diaphragm stretching device according to claim 1, characterized in that: The inner sealing plate (121) is used to seal the gap between the first clamping plate (106) and the simulation chamber (104) when the first clamping plate (106) moves to clamp the diaphragm, and the two sealing doors (111) are movably engaged.

4. A battery diaphragm stretching device according to claim 1, characterized in that: A fixing frame 1 (115) is fixedly connected to the outer wall of the lifting device (101) and located on one side of the telescopic frame (113); the telescopic frame (113) is elastically connected to the fixing frame 1 (115) via a spring column (114); one end of the telescopic frame (113) is fixedly connected to the sealing door (111); and one end of the telescopic frame (113) is fixedly connected to a seesaw (116).

5. A battery diaphragm stretching device according to claim 1, characterized in that: The sliding shielding mechanism comprises a sliding cover (223) slidably assembled on the top of the suction filter (213), wherein a push plate (120) is symmetrically fixedly connected to one side of one of the telescopic frames (113) and located above the suction filter (213), a protrusion (215) is fixedly connected to one side of the sliding cover (223) and located between the two push plates (120), and a closing plate (222) is fixedly connected to one end of the sliding cover (223) and located inside the suction filter (213).

6. A battery diaphragm stretching device according to claim 1, characterized in that: The limiting posts (118) are arranged as a symmetrical group, each group having at least two members. A embedding groove (119) is provided through the middle of the limiting posts (118). A second magnetic rod (315) for magnetically engaging with the embedding groove (119) is fixedly connected to the inner wall of one end of the sliding arm (302). A finger groove (311) is provided on one side of the clamping plate (310).

7. A battery diaphragm stretching device according to claim 6, characterized in that: The clamp plate 4 (310) is fixedly connected with a pick plate (312) on the side opposite to the finger groove (311), and the bottom of the pick plate (312) is fixedly assembled with a magnetic rod 1 (313) for magnetically engaging with the connecting plate (308), and a groove (112) for the fixing frame 2 (303) to pass through is provided on one side of the sealing door (111).

8. A battery diaphragm stretching device according to claim 1, characterized in that: A cover plate (202) is movably fastened on the top of the multi-channel sprayer (201); a temperature sensor (203) is electrically assembled on one end of the heating module (2); a temperature controller (204) is electrically assembled on one side of the temperature sensor (203); a display screen (206) is fixedly assembled on one side of the multi-channel sprayer (201); and the temperature controller (204) is electrically connected to the display screen (206).

9. A battery diaphragm stretching device according to claim 1, characterized in that: A liquid level meter (220) is fixedly assembled inside the liquid storage bin (219), a motor (207) is fixedly assembled on one side of the multi-channel sprayer (201), a stirring blade (216) is symmetrically fixedly connected to the output end of the motor (207) and located inside the heating bin (224), and a stirring wing plate (217) is fixedly connected between the two stirring blades (216).

10. A battery separator stretching device according to claim 1, characterized in that: An on-off valve (210) for controlling the opening and closing of the mixing chamber (221) is fixedly assembled on one side of the multi-channel sprayer (201), an on-off controller (209) for controlling the on-off valve (210) is fixedly assembled on one side of the multi-channel sprayer (201), the on-off valve (210) is electrically connected to the on-off controller (209), and a baffle (225) is elastically assembled inside the on-off valve (210).

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