Explosion-proof battery safety testing device

Abstract

The utility model provides an explosion-proof battery safety testing device which comprises a pressure testing box, a base and a fixing frame, the fixing frame is installed above the pressure testing box, a testing observation door is installed on the front face of the pressure testing box, a weight displayer is installed below the left side of the pressure testing box, and a pressure cylinder is installed in the middle of the fixing frame. A pressure cylinder, a test board, a bottom groove, a pressure sensor, a test observation window and a weight display are arranged in the pressure test box, a pressure applying plate is arranged on the upper portion of the interior of the pressure test box, and a pressure bearing bottom plate is arranged on the lower portion of the interior of the pressure test box. The pressure cylinder can be used for driving the pressure applying plate to extrude the explosion-proof hydrogen fuel cell above the test bench, meanwhile, whether the cell deforms or not is observed through the test observation window, and the pressure sensor and the weight display are used for displaying the applied pressure value, so that the pressure bearing data of the explosion-proof hydrogen fuel cell can be accurately judged.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydrogen fuel cell testing, and particularly relates to an explosion-proof battery safety testing device. Background Art

[0002] An explosion-proof hydrogen fuel cell is a specially designed battery that uses hydrogen as fuel to generate electricity through electrochemical reactions. This battery uses explosion-proof technology to prevent the risk of hydrogen leakage and explosion. It has the advantages of high efficiency, zero emissions and renewable energy, and is considered to be one of the important development directions of clean energy in the future. However, hydrogen fuel cells are now easily squeezed during use. If they are not fully pressure tested, defects in the design or manufacturing may not be discovered and resolved in time, which may cause the hydrogen fuel cell to be easily damaged when subjected to greater squeezing force, increasing safety hazards. Pressure testing can evaluate the performance of hydrogen fuel cells under different pressure conditions. If pressure testing is not performed, the performance stability and reliability of the battery in actual use may not be ensured. Therefore, for explosion-proof hydrogen fuel cells, pressure testing is very necessary, so we have developed an explosion-proof battery safety testing device. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model aims to provide an explosion-proof battery safety testing device to solve the problems raised in the above-mentioned background technology.

[0004] The utility model is realized by the following technical scheme: an explosion-proof battery safety test device, comprising: a pressure test box, a base and a fixing frame, a fixing frame is installed above the pressure test box, and a test observation door is installed on the front of the pressure test box;

[0005] A weight display is installed at the lower left side of the pressure test box, a pressure cylinder is installed in the middle of the fixed frame, a pressure plate is installed at the upper part of the pressure test box, a pressure-bearing bottom plate is installed at the lower part of the pressure test box, the upper surface of the pressure-bearing bottom plate is recessed downward to form a bottom groove, a test bench is arranged above the pressure-bearing bottom plate, and a plurality of pressure sensors are installed in the bottom groove;

[0006] A fixed side plate is installed on the upper right side of the test bench, and a transverse clamping plate is provided on the upper left side thereof; a motor cavity is opened on the right side inside the test bench, and a driving motor is installed in the motor cavity; the left side inside the test bench is a cavity structure, and a rotating screw is installed in the middle of the left side inside the test bench; an outer cylinder is installed on the left side of the rotating screw, and a linkage slider is installed above the outer cylinder; a sliding opening is formed in the middle of the upper surface of the test bench, the outer wall of the rotating screw is provided with an external thread, and the inner wall of the outer cylinder is provided with an internal thread, and the rotating screw is rotatably connected to the inside of the outer cylinder through a thread.

[0007] As a preferred embodiment, the length and width of the top view surface of the test bench are smaller than the length and width of the top view surface of the bottom groove, and the lower surface of the test bench is connected to the upper surfaces of multiple groups of pressure sensors.

[0008] As a preferred embodiment, multiple groups of pressure sensors are connected to a weight display, the piston rod of the pressure cylinder penetrates into the pressure test box and is connected in the middle of the upper surface of the pressure plate, and the test observation door is made of a highly transparent explosion-proof tempered glass.

[0009] As a preferred embodiment, the output shaft of the drive motor is connected to the right end of the rotating screw, a bearing is installed in the middle of the left side of the test bench, the left end of the rotating screw is connected to the inner side of the bearing, and the drive motor is a servo motor.

[0010] As a preferred embodiment, the upper end of the linked slider passes through the sliding opening and is connected to the middle of the lower surface of the transverse clamp, the lower surface of the fixed side plate is fixedly connected to the upper surface of the test bench, and a non-slip rubber pad is installed on the left side of the fixed side plate and the right side of the transverse clamp respectively.

[0011] As a preferred embodiment, the left and right sides below the pressure cylinder are connected to the inner side of the fixed frame through fixed connecting rods respectively, and the pressure cylinder is a hydraulic cylinder.

[0012] In actual use, the pressure cylinder is started to drive the pressure plate down through the piston rod, and pressure is applied to the battery above the test bench through the pressure plate. At the same time, multiple groups of pressure sensors can detect the pressure applied to the test bench and display the pressure value through the weight display. During the test, it is possible to observe whether the battery is deformed through the test observation door, and the pressure sensor and weight display are used to display the applied pressure value, so as to accurately judge the pressure data of the explosion-proof hydrogen fuel cell.

[0013] As a preferred embodiment, a slide groove is respectively opened in the middle of the left and right sides of the pressure test box, and the left and right sides of the pressure plate are slidably connected to the two slide grooves through synchronous sliders.

[0014] After adopting the above technical scheme, the beneficial effects of the utility model are as follows: by setting a pressure cylinder, a test bench, a pressure plate, a bottom groove, a pressure sensor, a test observation window and a weight display, the pressure cylinder can drive the pressure plate to squeeze the explosion-proof hydrogen fuel cell above the test bench, and at the same time observe whether the battery is deformed through the test observation window, and use the pressure sensor and the weight display to display the applied pressure value, so as to accurately judge the pressure data of the explosion-proof hydrogen fuel cell. This test method combines mechanical pressure, visual observation and pressure measurement, and can comprehensively evaluate the performance and safety of the explosion-proof hydrogen fuel cell when it is under pressure. Its advantages include high accuracy, strong intuitiveness, good repeatability and high safety. Through this test, important data support can be provided for further improvement and optimization of battery design;

[0015] By arranging a driving motor, a rotating screw, a fixed side plate, an outer cylinder, a linked slider, a sliding port and a transverse clamp, when the explosion-proof hydrogen fuel cell is pressure tested, the explosion-proof hydrogen fuel cell can be clamped so that it is not easy to move during the pressure test, thereby preventing the battery from accidentally moving during the test and affecting the test process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 The utility model is a schematic diagram of the overall structure of an explosion-proof battery safety testing device.

[0018] Figure 2 The utility model is a schematic diagram of an explosion-proof battery safety testing device viewed from the front.

[0019] Figure 3 The utility model is a schematic diagram of the front view of the inside of a test bench in an explosion-proof battery safety test device.

[0020] Figure 4 for Figure 3 A magnified schematic diagram of part A.

[0021] In the figure, 100-pressure test box, 200-base, 300-test observation door, 400-weight display, 500-fixed frame, 600-pressure cylinder, 700-fixed connecting rod, 800-pressure plate, 900-synchronous slider, 110-pressure bottom plate, 120-test table, 130-fixed side plate, 140-transverse clamping plate, 150-drive motor, 160-rotating screw, 170-bearing, 180-outer cylinder, 190-linking slider. DETAILED DESCRIPTION

[0022] 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 of 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.

[0023] See also Figures 1 to 4 The utility model provides a technical solution: an explosion-proof battery safety test device, comprising: a pressure test box 100, a base 200 and a fixing frame 500, the fixing frame 500 is installed above the pressure test box 100, and a test observation door 300 is installed on the front of the pressure test box 100;

[0024] A weight display 400 is installed at the lower left side of the pressure test box 100, a pressure cylinder 600 is installed in the middle of the fixed frame 500, a pressure plate 800 is installed at the upper part of the pressure test box 100, a pressure bottom plate 110 is installed at the lower part of the pressure test box 100, the upper surface of the pressure bottom plate 110 is concave downward to form a bottom groove, a test bench 120 is arranged above the pressure bottom plate 110, and multiple groups of pressure sensors are installed in the bottom groove;

[0025] A fixed side plate 130 is installed on the upper right side of the test bench 120, and a transverse clamping plate 140 is provided on the upper left side thereof. A motor cavity is opened on the right side inside the test bench 120, and a driving motor 150 is installed in the motor cavity. The left side inside the test bench 120 is a cavity structure, and a rotating screw 160 is installed in the middle of the left side inside. An outer cylinder 180 is installed on the left side of the rotating screw 160, and a linkage slider 190 is installed above the outer cylinder 180. A sliding opening is formed in the middle of the upper surface of the test bench 120, and an outer thread is provided on the outer wall of the rotating screw 160, and an inner thread is provided on the inner wall of the outer cylinder 180. The rotating screw 160 is rotatably connected with the inside of the outer cylinder 180 through a thread.

[0026] The length and width of the top view of the test bench 120 are smaller than the length and width of the top view of the bottom groove, and the lower surface of the test bench 120 is connected to the upper surfaces of the multiple groups of pressure sensors.

[0027] A plurality of pressure sensors are connected to the weight display 400, the piston rod of the pressure cylinder 600 penetrates into the pressure test box 100 and is connected in the middle of the upper surface of the pressure plate 800, and the test observation door 300 is made of a highly transparent explosion-proof tempered glass.

[0028] The output shaft of the driving motor 150 is connected to the right end of the rotating screw 160 . A bearing 170 is installed in the middle of the left side of the testing platform 120 . The left end of the rotating screw 160 is connected to the inner side of the bearing 170 . The driving motor 150 is a servo motor.

[0029] The upper end of the linkage slider 190 passes through the sliding opening and is connected to the middle of the lower surface of the transverse clamp 140. The lower surface of the fixed side plate 130 is fixedly connected to the upper surface of the test bench 120. A non-slip rubber pad is installed on the left side of the fixed side plate 130 and the right side of the transverse clamp 140 respectively.

[0030] Example 1: Please refer to Figures 1 to 4 In actual use, the test observation door 300 is opened, and the explosion-proof hydrogen fuel cell to be tested is placed on the test bench 120. Next, the drive motor 150 is started to reverse, and the output shaft of the drive motor 150 drives the rotating screw 160 to rotate counterclockwise, and at the same time, the rotating screw 160 drives the inner side of the bearing 170 to rotate. When the rotating screw 160 rotates counterclockwise, it can drive the outer cylinder 180 to move rightward, and at the same time, the outer cylinder 180 can drive the transverse clamping plate 140 to move rightward through the linked slider 190. In cooperation with the fixed side plate 130, the battery is clamped and fixed by two anti-slip rubber pads. The anti-slip rubber pad can increase the friction force, so that the battery is not easy to slide when clamped. If the clamping of the battery needs to be released, the drive motor 150 is rotated forward. Combined with the above, the clamping of the transverse clamping plate 140 on the battery can be released. Through the above steps, the final effect is that it is easy to clamp the explosion-proof hydrogen fuel cell so that it is not easy to move during the pressure test, so as to prevent the battery from accidentally moving during the test and affecting the test process.

[0031] The left and right sides of the lower side of the pressure cylinder 600 are connected to the inner side of the fixed frame 500 through fixed connecting rods 700 respectively. The pressure cylinder 600 is a hydraulic cylinder.

[0032] A slide groove is respectively provided in the middle of the left and right sides of the pressure test box 100 , and the left and right sides of the pressure plate 800 are slidably connected to the two slide grooves through synchronous sliders 900 .

[0033] Example 2: Please refer to Figure 1 and Figure 2, combined with the further elaboration of the first embodiment, after the battery is clamped, the test observation door 300 is closed, and then the pressure cylinder 600 is started to drive the pressure plate 800 to descend through the piston rod, and the pressure plate 800 is used to apply pressure to the battery above the test bench 120. At the same time, multiple groups of pressure sensors can detect the pressure applied to the test bench 120 and display the pressure value through the weight display 400. During the test, it is possible to observe whether the battery is deformed through the test observation door 300, and use the pressure sensor and the weight display 400 to display the applied pressure value, so that the pressure data of the explosion-proof hydrogen fuel cell can be accurately determined. This test method combines mechanical pressure, visual observation and pressure measurement, and can comprehensively evaluate the performance and safety of the explosion-proof hydrogen fuel cell when it is under pressure. Its advantages include high accuracy, strong intuitiveness, good repeatability and high safety. Through this test, important data support can be provided for further improvement and optimization of battery design;

[0034] When the pressure plate 800 descends, it can drive the two synchronous sliders 900 to move in a straight line along the two slide paths. The linear movement of the synchronous sliders 900 can reduce the deviation and shaking of the pressure plate 800 during the descent process, thereby improving the accuracy of the test results.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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 explosion-proof battery safety testing device, comprising: A pressure test box (100), a base (200) and a fixing frame (500), wherein the fixing frame (500) is installed above the pressure test box (100), and the pressure test box (100) is characterized in that a test observation door (300) is installed on the front side; A weight display (400) is installed at the lower left side of the pressure test box (100), a pressure cylinder (600) is installed in the middle of the fixing frame (500), a pressure plate (800) is installed at the upper part of the pressure test box (100), a pressure-bearing bottom plate (110) is installed at the lower part of the pressure test box (100), the upper surface of the pressure-bearing bottom plate (110) is concave downward to form a bottom groove, a test bench (120) is arranged above the pressure-bearing bottom plate (110), and a plurality of pressure sensors are installed in the bottom groove; A fixed side plate (130) is installed on the upper right side of the test bench (120), and a transverse clamping plate (140) is provided on the upper left side thereof. A motor cavity is opened on the right side inside the test bench (120), and a driving motor (150) is installed in the motor cavity. The left side inside the test bench (120) is a cavity structure, and a rotating screw (160) is installed in the middle of the left side inside. An outer cylinder (180) is installed on the left side of the rotating screw (160), and a linkage slider (190) is installed above the outer cylinder (180). A sliding opening is formed in the middle of the upper surface of the test bench (120), and an outer thread is provided on the outer wall of the rotating screw (160), and an inner thread is provided on the inner wall of the outer cylinder (180). The rotating screw (160) is rotatably connected to the inside of the outer cylinder (180) through a thread.

2. An explosion-proof battery safety testing device as claimed in claim 1, characterized in that: The length and width of the top view of the test bench (120) are smaller than the length and width of the top view of the bottom groove, and the lower surface of the test bench (120) is connected to the upper surfaces of multiple groups of pressure sensors.

3. An explosion-proof battery safety testing device as claimed in claim 2, characterized in that: A plurality of groups of the pressure sensors are connected to a weight display (400), a piston rod of the pressure cylinder (600) penetrates into the pressure test box (100) and is connected between the upper surface of the pressure plate (800), and the test observation door (300) is made of a highly transparent explosion-proof tempered glass.

4. An explosion-proof battery safety testing device as claimed in claim 3, characterized in that: The output shaft of the driving motor (150) is connected to the right end of the rotating screw (160), a bearing (170) is installed in the middle of the left side inside the testing platform (120), the left end of the rotating screw (160) is connected to the inner side of the bearing (170), and the driving motor (150) is a servo motor.

5. An explosion-proof battery safety testing device as claimed in claim 4, characterized in that: The upper end of the linkage slider (190) passes through the sliding opening and is connected to the middle of the lower surface of the transverse clamping plate (140); the lower surface of the fixed side plate (130) is fixedly connected to the upper surface of the test bench (120); and a non-slip rubber pad is installed on the left side of the fixed side plate (130) and the right side of the transverse clamping plate (140) respectively.

6. The explosion-proof battery safety testing device according to claim 1, characterized in that: The left and right sides below the pressure cylinder (600) are respectively connected to the inner side of the fixed frame (500) through fixed connecting rods (700), and the pressure cylinder (600) is a hydraulic cylinder.

7. The explosion-proof battery safety testing device according to claim 1, characterized in that: A slide groove is respectively provided in the middle of the left and right sides of the pressure test box (100), and the left and right sides of the pressure plate (800) are respectively slidably connected to the two slide grooves via synchronous sliders (900).

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