A testing device for the production of double-sided batteries with isolation and protection

Abstract

The present invention relates to the technical field of bifacial battery production, and more specifically, to an isolated and protective test device for bifacial battery production. The device comprises a testing mechanism, which comprises at least a test box and a pressing device connected to the test box; the test box has a test cavity formed inside, a placement plate formed inside the test cavity, a placement slot formed on the upper surface of the placement plate, and a sliding opening formed at the top of the test cavity; the pressing device comprises at least a slider, which is slidably connected to the sliding opening, a connecting plate formed at the bottom end of the slider, and a pressing plate connected to a pressing plate via a fixed head provided at the center of the ground; a protective door is connected to the bottom end of the opening of the test cavity; the pressing plate is driven by a hydraulic cylinder to slide downward, and the downward sliding of the pressing plate can press the bifacial battery in the placement slot. The placement plate moves downward due to the thrust of the pressing plate, which can drive the connecting rod in the cavity to slide downward, thereby driving the slide plate to slide upward, thereby extending the protective height.

Description

Technical Field

[0001] The present invention relates to the technical field of bifacial battery production, and in particular to an isolated and protective testing device for bifacial battery production. Background Art

[0002] Bifacial cell modules are solar cell modules composed of multiple bifacial cells connected in series or parallel. However, when electronic products are impacted or squeezed, the cells can easily catch fire or explode, damaging the product and potentially causing a safety incident. Therefore, the safety performance of batteries in electronic products is a key indicator of product quality, making it necessary to test their safety performance.

[0003] Existing bifacial battery pressure test equipment generally does not include an isolation and protection device. If the bifacial battery breaks during the pressure test, it will cause parts to break and crack, which can easily cause harm to workers. Therefore, an isolation and protection type bifacial battery production test device is needed to improve the shortcomings of existing technology. Summary of the Invention

[0004] The object of the present invention is to provide an isolated and protected bifacial cell production testing device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention aims to provide an isolated and protective bifacial cell production testing device, comprising a testing mechanism, the testing mechanism comprising at least a test box and a pressing device connected to the test box;

[0006] The test box is provided with a test cavity, the main function of which is to provide a protective space for testing bifacial cells. A placement plate is provided inside the test cavity, and a placement groove is provided on the upper surface of the placement plate, the main function of which is to place bifacial cells. A sliding opening is provided at the top of the test cavity, and the pressing device includes at least a slider, which is slidably connected to the sliding opening, and a connecting plate is provided at the bottom end of the slider. The connecting plate is connected to a pressing plate through a fixed head provided at the center of the ground. The sliding of the slider drives the pressing plate to move downward, and the bifacial cell in the placement groove can be pressed to perform testing.

[0007] When using the test box and pressing device of the present invention, first, the bifacial battery is placed inside the placement slot, and then the driving device drives the slider inside the sliding opening to slide downward, thereby driving the pressing plate to slide downward. The pressing plate slides downward to press the bifacial battery. By adjusting the pressing force to different degrees, the compressive resistance of the bifacial battery can be tested.

[0008] The bottom end of the opening of the test chamber is connected to a protective door, whose main function is to play a protective role. Sliding rods are provided at both ends of the lower surface of the placement plate, and the bottom end of the sliding rod is slidably connected to a sliding column. The sliding column is fixedly connected to the bottom surface of the test chamber, and the placement plate can be driven to move downward to a height lower than the protective door through the sliding of the sliding rod and the sliding column, further improving the protective effect. A groove is provided on the front surface of the protective door, and a slide plate is slidably connected inside the groove. The sliding of the slide plate can drive the protective height of the protective door to be extended. Connecting grooves are provided at both ends of the front surface of the protective door. The rear end bottom surface of the placement plate is connected to a U-shaped tube, a cavity is opened in the U-shaped tube, the front top end of the cavity is slidably connected to a connecting rod, the connecting rod is fixedly connected to the placement plate, and the rear top end of the U-shaped tube is slidably connected to a push rod, the rear end of the U-shaped tube is located inside the connecting groove, and the connecting groove is connected to the groove, and by sliding the placement plate downward, the connecting rod in the cavity can be driven to slide downward, thereby compressing the air inside the cavity, and the compression force generates a thrust on the push rod, and the thrust can drive the push rod to push the slide plate upward to slide, thereby extending the protection height;

[0009] When the testing mechanism of the present invention is used in practice, first, when the pressing plate presses the double-sided battery, the placing plate moves downward by the thrust of the pressing plate. When the placing plate moves, a thrust is generated on the connecting rod. The thrust drives the connecting rod inside the cavity to slide downward, causing the air in the cavity to be compressed. When the air is compressed, a thrust is generated on the push rod. The thrust drives the push rod to move upward, causing the push rod to generate a thrust on the slide plate, thereby driving the slide plate to slide upward, extending the protection height, and further improving the protection effect.

[0010] As a further improvement of this technical solution, a No. 1 spring is sleeved on the surface of the sliding rod, the bottom end of the No. 1 spring is fixedly connected to the sliding column, and the top end of the No. 1 spring is fixedly connected to the sliding rod. The rebound force of the No. 1 spring can drive the placement plate to reset.

[0011] As a further improvement of the present technical solution, a No. 3 spring is sleeved on the surface of the connecting rod, the bottom end of the No. 3 spring is fixedly connected to the U-shaped tube, and the top end of the No. 3 spring is fixedly connected to the top end of the connecting rod. The rebound force of the No. 3 spring can drive the push rod to reset, thereby driving the slide board to reset.

[0012] As a further improvement of the present technical solution, the side surface of the placement groove is connected to a fitting edge, and a plurality of No. 2 springs are installed on the side of the fitting edge close to the side of the placement groove. The No. 2 springs are fixedly connected to the placement groove. Through the elastic action of the No. 2 springs, the double-sided battery can be softly clamped to avoid easy damage.

[0013] As a further improvement of the present technical solution, a connecting head is provided at the left end of the rear side of the test box, a sliding cavity is provided inside the connecting head, and a rotating block is provided at the left end of the protective door. The rotating block is slidably connected to the sliding cavity, and its main function is to drive the protective door away from the opening of the test cavity. Rotating pins are provided at the upper and lower ends of the rotating block, and sliding grooves are provided at the upper and lower ends of the connecting head. The rotating pin is slidably connected to the inside of the sliding groove, and its main function is to stabilize the sliding of the rotating block. At the same time, when the rotating pin slides to the rear end of the sliding groove, the rotating pin can be rotated to facilitate the rotation of the protective door to the left, thereby opening the test cavity.

[0014] As a further improvement of the present technical solution, an insert block is provided at the right end of the protective door, and a fixed block is provided at the right end of the rear side of the test box. A slot is provided inside the fixed block, and the insert block is plugged into the slot. The protective door can be fixed by connecting the fixed block and the insert block.

[0015] As a further improvement of the present technical solution, hydraulic cylinders are installed at both ends of the slider, and the piston rod at the bottom end of the hydraulic cylinder is fixedly connected to the test box. The operation of the hydraulic cylinder can drive the slider to slide.

[0016] As a further improvement of this technical solution, limit plates are provided at both ends of the rear surface of the connecting plate. When the connecting plate descends, the limit plates can be driven to block the rear opening of the placement slot, thereby stabilizing the bifacial battery.

[0017] As a further improvement of the present technical solution, there are several pressing plates, each of which has a different radius. A screw is provided at the center of the bottom surface of the fixed head, and the screw hole opened at the center of the pressing plate is threadedly connected to the screw. Its main purpose is to be used for removing and replacing the pressing plate, so that double-sided batteries can be tested with pressing plates of different radii.

[0018] As a further improvement of the present technical solution, connecting blocks are provided at both ends of the upper surface of the test box, an air inlet pipe is installed inside the connecting block, an air outlet pipe is provided at the bottom end of the air inlet pipe, through holes are opened on the left and right surfaces of the test box, the air outlet pipe is fixed inside the through holes, an air pump is installed on the upper surface of the placement plate, the air outlet end of the air pump is fixedly connected to the air inlet of the air inlet pipe, its main purpose is to blow air into the test cavity, play the role of cleaning the placement slot, and avoid excessive impurities on the surface of the placement slot, which may cause damage to the surface of the double-sided battery.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. In this isolated and protective bifacial battery production test device, a pressing device is provided, which drives the pressing plate to slide downward through a hydraulic cylinder. The pressing plate slides downward to press the bifacial battery inside the placement slot. By adjusting the pressing force to different degrees, the pressure resistance of the bifacial battery can be tested.

[0021] 2. In the isolated and protective double-sided battery production test device, a protective door is set. When the pressing plate presses the double-sided battery, the placement plate moves downward due to the thrust of the pressing plate, which can drive the connecting rod inside the cavity to slide downward, so that the air in the cavity is compressed. When the air is compressed, it generates thrust on the push rod, and the thrust drives the push rod to move upward, thereby driving the slide plate to slide upward, extending the protection height and further improving the protection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic structural diagram of the test box of the present invention;

[0024] Figure 3 Schematic diagram of the test chamber structure of the present invention;

[0025] Figure 4 It is a schematic diagram of the placement plate structure of the present invention;

[0026] Figure 5 Schematic diagram of the bonding edge structure of the present invention;

[0027] Figure 6 It is a schematic diagram of the U-shaped tube structure of the present invention;

[0028] Figure 7 Schematic diagram of the air intake pipe structure of the present invention;

[0029] Figure 8 It is a schematic structural diagram of the pressing device of the present invention;

[0030] Figure 9 It is a schematic structural diagram of the pressing device of the present invention;

[0031] Figure 10 It is a schematic diagram of the rotating block structure of the present invention.

[0032] The meaning of each number in the figure is:

[0033] 10. Testing organization;

[0034] 100, test box; 1000, test cavity; 1001, sliding port; 1002, connecting block; 1003, through hole;

[0035] 101, connector; 1010, slide cavity; 1011, slide groove;

[0036] 102, fixed block; 1020, slot;

[0037] 110, placement plate; 1100, placement slot; 1101, slide rod; 1102, slide column; 1103, spring No. 1;

[0038] 111, fitting edge; 1111, spring No. 2;

[0039] 120, U-shaped tube; 1200, cavity;

[0040] 121, connecting rod; 1211, spring No. 3; 122, push rod;

[0041] 130, air inlet pipe; 1301, air outlet pipe; 131, air pump;

[0042] 200, pressing device;

[0043] 210, slider; 2101, hydraulic cylinder;

[0044] 211, connecting plate; 2111, limiting plate;

[0045] 212, fixed head; 2121, screw; 220, pressing plate;

[0046] 300, protective door; 3000, groove; 3001, connecting groove; 301, slide plate;

[0047] 310, rotating block; 311, rotating pin;

[0048] 320. Insert the block. DETAILED DESCRIPTION

[0049] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0050] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0051] Example 1

[0052] See also Figures 1-10 As shown, the present embodiment aims to provide an isolated and protective bifacial cell production test device, comprising a test mechanism 10, which comprises at least a test box 100 and a pressing device 200 connected to the test box 100;

[0053] A test chamber 1000 is provided inside the test box 100, whose main function is to provide a protective space for testing bifacial batteries. A placement plate 110 is provided inside the test chamber 1000, and a placement groove 1100 is provided on the upper surface of the placement plate 110, whose main function is to place bifacial batteries. A sliding opening 1001 is provided at the top of the test chamber 1000, and a pressing device 200 includes at least a slider 210, which is slidably connected to the sliding opening 1001. A connecting plate 211 is provided at the bottom of the slider 210. The connecting plate 211 is connected to a pressing plate 220 via a fixed head 212 provided at the center of the ground. The sliding of the slider 210 drives the pressing plate 220 to move downward, which can press the bifacial battery in the placement groove 1100 to perform testing.

[0054] When using the test box 100 and the pressing device 200 of this embodiment, first, a bifacial battery is placed inside the placement groove 1100. Then, the driving device drives the slider 210 to slide downward inside the sliding opening 1001, thereby driving the pressing plate 220 to slide downward. The pressing plate 220 slides downward to press the bifacial battery. By adjusting the pressing force to different degrees, the compressive strength of the bifacial battery can be tested.

[0055] The bottom of the opening of the test chamber 1000 is connected to a protective door 300, whose main function is to provide protection. Slide rods 1101 are provided at both ends of the lower surface of the placement plate 110, and the bottom end of the slide rod 1101 is slidably connected to a slide column 1102. The slide column 1102 is fixedly connected to the bottom surface of the test chamber 1000. The sliding of the slide rod 1101 and the slide column 1102 can drive the placement plate 110 to move downward to a height lower than the protective door 300, further improving the protection effect. A groove 3000 is provided on the front surface of the protective door 300, and a slide plate 301 is slidably connected inside the groove 3000. The sliding of the slide plate 301 can drive the protection height of the protective door 300 to be extended. The front surface of the protective door 300 is provided with connecting grooves 300 at both ends. 01. The bottom surface of the rear end of the placement plate 110 is connected to a U-shaped tube 120. A cavity 1200 is opened inside the U-shaped tube 120. The front top of the cavity 1200 is slidably connected to a connecting rod 121. The connecting rod 121 is fixedly connected to the placement plate 110. The rear top of the U-shaped tube 120 is slidably connected to a push rod 122. The rear end of the U-shaped tube 120 is located inside the connecting groove 3001. The connecting groove 3001 is connected to the groove 3000. By sliding the placement plate 110 downward, the connecting rod 121 in the cavity 1200 can be driven to slide downward, which can compress the air inside the cavity 1200. The compression force generates a thrust on the push rod 122. The thrust can drive the push rod 122 to push the slide plate 301 upward to slide, thereby extending the protection height.

[0056] When the testing mechanism 10 in this embodiment is used, first, when the pressing plate 220 presses the double-sided battery, the placing plate 110 moves downward due to the thrust of the pressing plate 220. When the placing plate 110 moves, a thrust is generated on the connecting rod 121. The thrust drives the connecting rod 121 located inside the cavity 1200 to slide downward, so that the air in the cavity 1200 is compressed. When the air is compressed, a thrust is generated on the push rod 122. The thrust drives the push rod 122 to move upward, so that the push rod 122 generates a thrust on the slide plate 301, thereby driving the slide plate 301 to slide upward, extending the protection height, and further improving the protection effect.

[0057] Taking into account the need to reset the placement plate 110, a spring No. 1103 is sleeved on the surface of the slide rod 1101, the bottom end of the spring No. 1103 is fixedly connected to the slide column 1102, and the top end of the spring No. 1103 is fixedly connected to the slide rod 1101. The placement plate 110 can be reset by the rebound force of the spring No. 1103.

[0058] Taking into account the need to drive the slide 301 to reset, a No. 3 spring 1211 is sleeved on the surface of the connecting rod 121. The bottom end of the No. 3 spring 1211 is fixedly connected to the U-shaped tube 120, and the top of the No. 3 spring 1211 is fixedly connected to the top of the connecting rod 121. Through the rebound force of the No. 3 spring 1211, the push rod 122 can be driven to reset, thereby driving the slide 301 to reset.

[0059] Taking into account the need to protect the sides of the double-sided battery, the side surface of the placement groove 1100 is connected to a fitting edge 111, and a number of No. 2 springs 1111 are installed on the side of the fitting edge 111 close to the side of the placement groove 1100. The No. 2 springs 1111 are fixedly connected to the placement groove 1100. Through the elastic action of the No. 2 springs 1111, the double-sided battery can be softly clamped to avoid easy damage.

[0060] When the cam 311 is in the closed position, the cam 311 is in the closed position, and the cam 311 is in the closed position, so that the cam 311 is in the closed position, and the cam 311 is in the closed position, so that the cam 311 is in the closed position, and the cam 311 is in the closed position, so that the cam 311 is in the closed position, and the cam 311 is in the closed position, so that the cam 311 is in the closed position, and the cam 311 is in the closed position, so that the cam 311 is in the closed position, and the cam 311 is in the closed position, so that the cam 311 is in the closed position, and the cam 311 is in the closed position, so that the cam 311 is in the closed position, and the cam 311 is in the closed position, so that the cam 311 is in the closed position,

[0061] Taking into account the need to fix the protective door 300, an insert block 320 is provided at the right end of the protective door 300, and a fixing block 102 is provided at the right end of the rear side of the test box 100. A slot 1020 is provided inside the fixing block 102, and the insert block 320 is plugged into the slot 1020. The protective door 300 can be fixed by connecting the fixing block 102 and the insert block 320.

[0062] Considering the need to drive the slider 210 to slide, hydraulic cylinders 2101 are installed on both ends of the slider 210. The piston rod at the bottom end of the hydraulic cylinder 2101 is fixedly connected to the test box 100. When the hydraulic cylinder 2101 works, the slider 210 can be driven to slide.

[0063] To prevent the bifacial battery from escaping from the placement groove 1100 during testing, limit plates 2111 are provided at both ends of the rear surface of the connecting plate 211. When the connecting plate 211 descends, the limit plates 2111 can be driven to block the rear opening of the placement groove 1100, thereby stabilizing the bifacial battery.

[0064] Taking into account the different levels of testing, several pressing plates 220 are provided, and the radii of the several pressing plates 220 are different. A screw 2121 is provided at the center of the bottom surface of the fixed head 212, and the screw hole opened at the center of the pressing plate 220 is threadedly connected to the screw 2121. Its main purpose is to be used for the removal and replacement of the pressing plate 220, so that the double-sided battery can be tested with pressing plates 220 of different radii.

[0065] Taking into account the need to clean the surface of the placement groove 1100, connecting blocks 1002 are provided on both ends of the upper surface of the test box 100, and an air inlet pipe 130 is installed inside the connecting block 1002. An air outlet pipe 130 is provided at the bottom end of the air inlet pipe 130. Through holes 1003 are opened on the left and right surfaces of the test box 100, and the air outlet pipe 1301 is fixed to the inside of the through hole 1003. An air pump 131 is installed on the upper surface of the placement plate 110, and the air outlet end of the air pump 131 is fixedly connected to the air inlet of the air inlet pipe 130. Its main purpose is to blow air into the test cavity 1000, so as to clean the placement groove 1100 and avoid excessive impurities on the surface of the placement groove 1100, which may cause damage to the surface of the double-sided battery.

[0066] When the isolated and protective double-sided battery production test device of this embodiment is used, first, the air pump 131 is connected to the power supply to make it work. The air pump 131 inputs the air source to the air inlet pipe 130, and the air source is discharged to the inside of the test chamber 1000 through the air outlet pipe 1301. The impurities on the surface of the placement groove 1100 are cleaned by the wind force. Then, the double-sided battery is placed in the placement groove 1100. Then, the hydraulic cylinder 2101 is operated to make its piston rod contract, which drives the slider 210 located in the sliding port 1001 to slide downward, thereby driving the pressing plate 220 to slide downward. The pressing plate 220 slides downward to clean the double-sided battery. The battery is pressed. When the pressing plate 220 presses the double-sided battery, the placement plate 110 moves downward due to the thrust of the pressing plate 220. When the placement plate 110 moves, it generates a thrust on the connecting rod 121. The thrust drives the connecting rod 121 located inside the cavity 1200 to slide downward, causing the air in the cavity 1200 to be compressed. When the air is compressed, a thrust is generated on the push rod 122. The thrust drives the push rod 122 to move upward, causing the push rod 122 to generate a thrust on the slide plate 301, thereby driving the slide plate 301 to slide upward. At this time, the pressing plate 220 is in contact with the surface of the double-sided battery, thereby performing a press test on it.

[0067] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An isolated and protected bifacial cell production test device, characterized by: The test mechanism (10) comprises at least a test box (100) and a pressing device (200) connected to the test box (100); A test cavity (1000) is provided inside the test box (1000), a placement plate (110) is provided inside the test cavity (1000), a placement groove (1100) is provided on the upper surface of the placement plate (110), a sliding opening (1001) is provided at the top of the test cavity (1000), and the pressing device (200) comprises at least a slider (210), the slider (210) is slidably connected to the sliding opening (1001), a connecting plate (211) is provided at the bottom end of the slider (210), and the connecting plate (211) is connected to a pressing plate (220) via a fixed head (212) provided at the center of the ground; The bottom end of the opening of the test cavity (1000) is connected to a protective door (300), both ends of the lower surface of the placement plate (110) are provided with sliding rods (1101), the bottom end of the sliding rod (1101) is slidably connected to a sliding column (1102), and the sliding column (1102) is fixedly connected to the bottom surface of the test cavity (1000), a groove (3000) is provided on the front surface of the protective door (300), and a slide plate (301) is slidably connected inside the groove (3000), and a connecting groove (300) is provided on both ends of the front surface of the protective door (300). 01), the bottom surface of the rear end of the placement plate (110) is connected to a U-shaped tube (120), a cavity (1200) is provided inside the U-shaped tube (120), a connecting rod (121) is slidably connected to the front top of the cavity (1200), the connecting rod (121) is fixedly connected to the placement plate (110), a push rod (122) is slidably connected to the rear top of the U-shaped tube (120), the rear end of the U-shaped tube (120) is located inside the connecting groove (3001), and the connecting groove (3001) is connected to the groove (3000); The side surface of the placement groove (1100) is connected to a fitting edge (111), and a plurality of No. 2 springs (1111) are installed on a side of the fitting edge (111) close to the side of the placement groove (1100), and the No. 2 springs (1111) are fixedly connected to the placement groove (1100); A hydraulic cylinder (2101) is installed at both left and right ends of the slider (210), and a piston rod at the bottom end of the hydraulic cylinder (2101) is fixedly connected to the test box (100); There are a plurality of pressing plates (220), each having a different radius. A screw rod (2121) is provided at the center of the bottom surface of the fixed head (212), and a screw hole provided at the center of the pressing plate (220) is threadedly connected to the screw rod (2121). The left and right ends of the upper surface of the test box (100) are provided with connection blocks (1002), an air inlet pipe (130) is installed inside the connection block (1002), and an air outlet pipe (1301) is provided at the bottom end of the air inlet pipe (130). Through holes (1003) are opened on the left and right surfaces of the test box (100), and the air outlet pipe (1301) is fixed inside the through holes (1003). An air pump (131) is installed on the upper surface of the placement plate (110), and the air outlet end of the air pump (131) is fixedly connected to the air inlet of the air inlet pipe (130).

2. The isolated and protected bifacial cell production testing device according to claim 1, characterized in that: A No. 1 spring (1103) is sleeved on the surface of the slide bar (1101), the bottom end of the No. 1 spring (1103) is fixedly connected to the slide column (1102), and the top end of the No. 1 spring (1103) is fixedly connected to the slide bar (1101).

3. The isolated and protected bifacial cell production testing device according to claim 1, characterized in that: A No. 3 spring (1211) is sleeved on the surface of the connecting rod (121), the bottom end of the No. 3 spring (1211) is fixedly connected to the U-shaped tube (120), and the top end of the No. 3 spring (1211) is fixedly connected to the top end of the connecting rod (121).

4. The isolated and protected bifacial cell production testing device according to claim 1, characterized in that: A connector (101) is provided at the left rear end of the test box (100), a sliding cavity (1010) is provided inside the connector (101), a rotating block (310) is provided at the left end of the protective door (300), the rotating block (310) is slidably connected to the sliding cavity (1010), a rotating pin (311) is provided at both the upper and lower ends of the rotating block (310), a sliding groove (1011) is provided at both the upper and lower ends of the connector (101), and the rotating pin (311) is slidably connected to the inside of the sliding groove (1011).

5. The isolated and protected bifacial cell production testing device according to claim 1, characterized in that: The right end of the protective door (300) is provided with an insert block (320), the right end of the rear side of the test box (100) is provided with a fixing block (102), a slot (1020) is provided inside the fixing block (102), and the insert block (320) is plugged into and matched with the slot (1020).

6. The isolated and protected bifacial cell production testing device according to claim 1, characterized in that: Limiting plates (2111) are provided at both left and right ends of the rear surface of the connecting plate (211).

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