Limit withstand voltage testing device of photosensitive diode

Abstract

The utility model discloses a photosensitive diode ultimate withstand voltage test device, which comprises a test board and a top board, the top board is arranged at the upper part of the test board, and support rods are fixedly arranged between four corners of the outer surface of the upper end of the test board and four corners of the outer surface of the lower end of the top board. A voltage withstanding testing assembly is fixedly installed in the middle of the outer surface of the upper end of the top plate, a positioning assembly is fixedly installed in the middle of the outer surface of the upper end of the testing table, a photosensitive diode is arranged on the upper portion of the positioning assembly, and a first electrode plate and a second electrode plate are arranged on the lower portion of the positioning assembly; the pressure resistance testing assembly comprises a hydraulic cylinder, a connecting plate, a pressure sensor, a pressing plate, a connector lug, a wire, a mounting groove and an illuminating lamp, and the positioning assembly comprises a positioning plate, a limiting hole and a supporting block. The limit voltage withstanding testing device for the photosensitive diode has the advantages that the limit voltage withstanding capability of the photosensitive diode is detected, the photosensitive diode is conveniently limited, and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of photosensitive diode detection, in particular to an ultimate breakdown voltage test device for a photosensitive diode. Background Technique

[0002] A photosensitive diode, also called a photodiode, is a light detector that can convert light into current or voltage signals according to the usage method. The tube core often uses a PN junction with photosensitive characteristics, which is very sensitive to light changes, has unidirectional conductivity, and its electrical characteristics will change when the light intensity is different. Therefore, the current in the circuit can be changed by the light intensity. When manufacturing photosensitive diodes, it is necessary to detect the breakdown voltage ability of the photosensitive diodes. However, in the prior art, there is no special structure for testing the breakdown voltage ability of photosensitive diodes. Generally, it is detected by traditional pressure test devices, lacking a structure for limiting the photosensitive diodes and a structure for monitoring whether the photosensitive diodes can operate normally. For this reason, we propose an ultimate breakdown voltage test device for a photosensitive diode. Content of the Utility Model

[0003] Technical problems to be solved: Aiming at the deficiencies of the prior art, the utility model provides an ultimate breakdown voltage test device for a photosensitive diode, which has the advantages of detecting the ultimate breakdown voltage ability of the photosensitive diode and facilitating the limitation of the photosensitive diode, and can effectively solve the problems in the background technique.

[0004] Technical solution: To achieve the above object, the technical solution adopted by the utility model is: an ultimate breakdown voltage test device for a photosensitive diode, including a test bench and a top plate. The top plate is located above the test bench. Support rods are fixedly installed between the four corners of the outer surface of the upper end of the test bench and the four corners of the outer surface of the lower end of the top plate. A breakdown voltage test assembly is fixedly installed in the middle of the outer surface of the upper end of the top plate. A positioning assembly is fixedly installed in the middle of the outer surface of the upper end of the test bench. A photosensitive diode is arranged above the positioning assembly. A first electrode plate and a second electrode plate are arranged below the positioning assembly, and the second electrode plate is located on one side of the first electrode plate. The breakdown voltage test assembly includes a hydraulic cylinder, a connecting plate, a pressure sensor, a pressing plate, a wiring head, a wire, an installation groove and a lighting lamp. The positioning assembly includes a positioning plate, a limiting hole and a support block, and the support block is fixedly installed between the left and right sides of the outer surface of the lower end of the limiting hole and the outer surface of the upper end of the test bench.

[0005] Preferably, both the first electrode plate and the second electrode plate are externally connected to a multimeter, the pressure sensor is externally connected to a controller, and the wiring head is externally connected to a power supply.

[0006] Preferably, the limiting holes are opened on the left and right sides of the outer surface of the upper end of the positioning plate. Pins are fixedly installed on the left and right sides of the outer surface of the lower end of the photodiode. A glass window is arranged in the middle of the outer surface of the upper end of the photodiode, and the pins are inserted into the limiting holes.

[0007] Preferably, the photodiode is located on the outer surface of the upper end of the positioning plate. The withstand voltage test assembly is fixedly installed in the middle of the outer surface of the upper end of the top plate. The lower end surface of the piston rod of the withstand voltage test assembly is fixedly connected to the middle of the outer surface of the upper end of the connecting plate.

[0008] Preferably, the upper end surface of the pressure sensor is fixedly connected to the middle of the outer surface of the lower end of the connecting plate, and the lower end surface of the pressure sensor is fixedly connected to the middle of the outer surface of the upper end of the pressing plate.

[0009] Preferably, the wiring head is fixedly installed on one side of the outer surface of the upper end of the pressing plate. The installation groove is opened in the middle of the outer surface of the lower end of the pressing plate. The lighting lamp is fixedly installed inside the installation groove, and the wire is connected between the wiring head and the lighting lamp.

[0010] Beneficial effects: Compared with the prior art, the present invention provides a device for testing the ultimate withstand voltage of a photodiode, which has the following beneficial effects:

[0011] 1. For the device for testing the ultimate withstand voltage of a photodiode, through the provided withstand voltage test assembly, it is convenient to monitor the ultimate withstand voltage ability of the photodiode.

[0012] 2. For the device for testing the ultimate withstand voltage of a photodiode, through the provided positioning assembly, it is convenient to quickly position the photodiode. Description of the Drawings

[0013] Figure 1 It is a schematic diagram of the overall structure of a device for testing the ultimate withstand voltage of a photodiode according to the present invention.

[0014] Figure 2 It is a schematic diagram of the structure of the photodiode and the positioning assembly in a device for testing the ultimate withstand voltage of a photodiode according to the present invention.

[0015] Figure 3 It is a schematic diagram of the structure of the withstand voltage test assembly in a device for testing the ultimate withstand voltage of a photodiode according to the present invention.

[0016] Figure 4 It is a partial side view cross-sectional diagram of the withstand voltage test assembly in a device for testing the ultimate withstand voltage of a photodiode according to the present invention.

[0017] In the figure: 1, test bench; 2, top plate; 3, withstand voltage test component; 4, support rod; 5, photosensitive diode; 6, positioning component; 7, first electrode plate; 8, second electrode plate; 9, glass window; 10, pin; 11, positioning plate; 12, limit hole; 13, support block; 14, hydraulic cylinder; 15, connecting plate; 16, pressure sensor; 17, pressing plate; 18, connection terminal; 19, wire; 20, installation groove; 21, lighting lamp. Specific implementation manner

[0018] In order to make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific implementation manners.

[0019] This embodiment is a device for testing the ultimate withstand voltage of a photosensitive diode.

[0020] As Figures 1-4 shown, it includes a test bench 1 and a top plate 2. The top plate 2 is located above the test bench 1. Support rods 4 are fixedly installed between the four corners of the outer surface of the upper end of the test bench 1 and the four corners of the outer surface of the lower end of the top plate 2. A withstand voltage test component 3 is fixedly installed in the middle of the outer surface of the upper end of the top plate 2. A positioning component 6 is fixedly installed in the middle of the outer surface of the upper end of the test bench 1. A photosensitive diode 5 is arranged above the positioning component 6. A first electrode plate 7 and a second electrode plate 8 are arranged below the positioning component 6, and the second electrode plate 8 is located on one side of the first electrode plate 7. The withstand voltage test component 3 includes a hydraulic cylinder 14, a connecting plate 15, a pressure sensor 16, a pressing plate 17, a connection terminal 18, a wire 19, an installation groove 20 and a lighting lamp 21. The positioning component 6 includes a positioning plate 11, a limit hole 12 and a support block 13, and the support block 13 is fixedly installed between the left and right sides of the outer surface of the lower end of the limit hole 12 and the outer surface of the upper end of the test bench 1.

[0021] The first electrode plate 7 and the second electrode plate 8 are both externally connected to a multimeter, the pressure sensor 16 is externally connected to a controller, and the terminal block 18 is externally connected to a power supply; the limiting holes 12 are opened on the left and right sides of the outer surface of the upper end of the positioning plate 11, and pins 10 are fixedly installed on the left and right sides of the outer surface of the lower end of the photodiode 5. A glass window 9 is arranged in the middle of the outer surface of the upper end of the photodiode 5, and the pins 10 are inserted into the limiting holes 12; the photodiode 5 is located on the outer surface of the upper end of the positioning plate 11, and the withstand voltage test assembly 3 is fixedly installed in the middle of the outer surface of the upper end of the top plate 2. The lower outer surface of the piston rod of the withstand voltage test assembly 3 is fixedly connected to the middle of the outer surface of the upper end of the connecting plate 15; the upper outer surface of the pressure sensor 16 is fixedly connected to the middle of the outer surface of the lower end of the connecting plate 15, and the lower outer surface of the pressure sensor 16 is fixedly connected to the middle of the outer surface of the upper end of the pressing plate 17; the terminal block 18 is fixedly installed on one side of the outer surface of the upper end of the pressing plate 17, the installation groove 20 is opened in the middle of the outer surface of the lower end of the pressing plate 17, and the lighting lamp 21 is fixedly installed inside the installation groove 20. The wire 19 is connected between the terminal block 18 and the lighting lamp 21.

[0022] It should be noted that the present invention is a device for testing the ultimate withstand voltage of a photodiode. By providing the first electrode plate 7 and the second electrode plate 8, both the first electrode plate 7 and the second electrode plate 8 are connected to an external multimeter. The photodiode 5 to be tested is limited by the positioning assembly 6. By inserting the pins 10 at the lower part of the photodiode 5 into the limiting holes 12, the lower outer surface of the pins 10 is brought into contact with the first electrode plate 7 and the second electrode plate 8, and then the test is started. The operation of the withstand voltage test assembly 3 drives the pressing plate 17 to descend, so that the lower outer surface of the pressing plate 17 presses the upper outer surface of the photodiode 5. The lighting lamp 21 is powered on for illumination. By providing the lighting lamp 21, it is convenient to irradiate the position of the glass window 9. By observing the multimeter, the state of the photodiode 5 can be known. By providing the pressure sensor 16, it is convenient to monitor the force applied to the photodiode 5. And the pressure sensor 16 is externally connected to a controller. When the multimeter measures that the photodiode 5 stops operating, the value displayed by the pressure sensor 16 is the ultimate withstand voltage value of the photodiode 5.

[0023] It should be noted that in this text, relational terms such as first and second (No. 1, No. 2, etc.) are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising said element.

[0024] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and all these changes and improvements fall within the scope of the present utility model claimed.

Claims

1. A device for testing the ultimate breakdown voltage of a photosensitive diode, comprising a test bench (1) and a top plate (2), characterized in that: The top plate (2) is located above the test bench (1). Support rods (4) are fixedly installed between the four corners of the outer surface of the upper end of the test bench (1) and the four corners of the outer surface of the lower end of the top plate (2). A pressure resistance test component (3) is fixedly installed in the middle of the outer surface of the upper end of the top plate (2). A positioning component (6) is fixedly installed in the middle of the outer surface of the upper end of the test bench (1). A photosensitive diode (5) is arranged above the positioning component (6). A first electrode plate (7) and a second electrode plate (8) are arranged below the positioning component (6), and the second electrode plate (8) is located on one side of the first electrode plate (7). The pressure resistance test component (3) includes a hydraulic cylinder (14), a connecting plate (15), a pressure sensor (16), a pressing plate (17), a connection head (18), a wire (19), a mounting groove (20) and a lighting lamp (21). The positioning component (6) includes a positioning plate (11), a limiting hole (12) and a support block (13), and the support block (13) is fixedly installed between the left and right sides of the outer surface of the lower end of the limiting hole (12) and the outer surface of the upper end of the test bench (1).

2. The limit breakdown voltage test device for a photosensitive diode according to claim 1, wherein: Both the first electrode plate (7) and the second electrode plate (8) are externally connected to a multimeter. The pressure sensor (16) is externally connected to a controller. The connection head (18) is externally connected to a power supply.

3. The limit withstand voltage testing device for a photosensitive diode according to claim 2, characterized in that: The limiting holes (12) are opened on the left and right sides of the outer surface of the upper end of the positioning plate (11). Pins (10) are fixedly installed on the left and right sides of the outer surface of the lower end of the photosensitive diode (5). A glass window (9) is arranged in the middle of the outer surface of the upper end of the photosensitive diode (5), and the pins (10) are inserted into the limiting holes (12).

4. The limit breakdown voltage test device for a photosensitive diode according to claim 3, wherein: The photosensitive diode (5) is located on the outer surface of the upper end of the positioning plate (11). The pressure resistance test component (3) is fixedly installed in the middle of the outer surface of the upper end of the top plate (2). The lower end surface of the piston rod of the pressure resistance test component (3) is fixedly connected to the middle of the outer surface of the upper end of the connecting plate (15).

5. The limit breakdown voltage testing device for a photosensitive diode according to claim 4, characterized in that: The upper end surface of the pressure sensor (16) is fixedly connected to the middle of the outer surface of the lower end of the connecting plate (15). The lower end surface of the pressure sensor (16) is fixedly connected to the middle of the outer surface of the upper end of the pressing plate (17).

6. The limit breakdown voltage test device for a photosensitive diode according to claim 5, wherein: The connection head (18) is fixedly installed on one side of the outer surface of the upper end of the pressing plate (17). The mounting groove (20) is opened in the middle of the outer surface of the lower end of the pressing plate (17). The lighting lamp (21) is fixedly installed inside the mounting groove (20). The wire (19) is connected between the connection head (18) and the lighting lamp (21).

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