Detection system for circuit board of relay protection device

Abstract

The utility model provides a detection system for a circuit board of a relay protection device, which is used for detecting a to-be-detected circuit board and comprises a box body, a detection module, a detection module and a control module, the test circuit assembly is located in the box body; the bearing platform is used for bearing a circuit board to be tested; the first group of probes penetrate through the box body and the bearing table, one end of each probe can be in contact with a to-be-tested circuit board, and the other end of each probe is in contact with the test circuit assembly; the second group of probes penetrate through the box body and the bearing body, and one end of each probe can be in contact with a to-be-tested circuit board; the first switching button is arranged on the box body and can be connected with the first group of probes; the second switching button is arranged on the box body and can be connected with the second group of probes; the debugger is connected to the test circuit assembly.

Description

Technical Field

[0001] The utility model relates to the field of relay protection devices, in particular to a detection system for a circuit board of a relay protection device. Background Art

[0002] A relay protection device is an automated device that can promptly issue a warning signal to operating personnel or directly issue a trip command to the controlled circuit breaker to halt the development of an incident when a fault occurs in a power system component (such as a generator or line) or in the power system itself, threatening the safe operation of the power system. Relay protection devices are a crucial component of power systems.

[0003] Relay protection devices typically consist of multiple circuit boards. The proper functioning of each circuit board is essential to ensuring the overall performance of the relay protection device. Therefore, each circuit board must be tested for functionality before shipment. Utility Model Content

[0004] In view of this, the present invention proposes a circuit board detection system for a relay protection device, which is used to detect a circuit board to be tested. The system includes:

[0005] Box body;

[0006] a test circuit assembly, which is located in the box body;

[0007] A carrying platform, located above the box body, and used for carrying the circuit board to be tested;

[0008] The system further comprises:

[0009] A first set of probes, which penetrate the box body and the carrier platform and have one end capable of contacting the circuit board to be tested, and the other end of the first set of probes contacts the test circuit assembly;

[0010] A second set of probes is provided through the box body and the carrier and one end of the probes can contact the circuit board to be tested, and the other end of the second set of probes contacts the test circuit assembly;

[0011] a first switching button, which is disposed on the box body and is capable of connecting the first set of probes;

[0012] a second switching button, which is disposed on the box body and is capable of connecting the second set of probes;

[0013] A debugger is connected to the test circuit assembly and can rewrite the program to the circuit board under test through the test circuit assembly.

[0014] According to the detection system for circuit boards of relay protection devices of the present invention, a debugger is set up and two switching buttons are used to connect different probes. When a problem is detected in the circuit board to be tested, the program of the circuit board to be tested can be rewritten to check whether there are errors in the program of the circuit board to be tested, and the errors in the program of the circuit board to be tested can be cleared in time. The detection system has a simple structure and low cost.

[0015] According to the detection system as described above, optionally, it further includes: a housing of the relay protection device, which is connected to the test circuit assembly, and the housing has a display screen.

[0016] According to the detection system as described above, optionally, it further includes: a computer connected to the debugger and the housing of the relay protection device.

[0017] According to the detection system as described above, optionally, the debugger has a first USB interface, and the computer is connected to the first USB interface via a first USB cable; and / or

[0018] The housing has a second USB interface, and the computer is connected to the second USB interface via a second USB cable.

[0019] According to the above detection system, optionally, it further comprises: an infrared scanner connected to the computer, the infrared scanner being used to scan the label of the circuit board to be tested. This method is convenient and fast, saving manpower.

[0020] According to the above detection system, optionally, it further comprises: a pressing device, which is located above the supporting platform and is used to press the circuit board to be tested, so as to avoid displacement of the circuit board to be tested and affect the detection.

[0021] According to the detection system as described above, optionally, it further includes:

[0022] A first light is provided in the first switch button and is configured to light up when the first set of probes is turned on; and / or

[0023] A second light is provided in the second switch button and is configured to light up when the second group of probes is turned on.

[0024] According to the detection system as described above, optionally, it further includes:

[0025] A power socket, which is located on the box body;

[0026] An external power cord can be plugged into the power socket and provide power to the test circuit assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that those skilled in the art will have a clearer understanding of the above and other features and advantages of the present invention. In the accompanying drawings:

[0028] Figure 1 The figure is a schematic structural diagram of a detection system for a circuit board of a relay protection device according to an embodiment of the present invention.

[0029] Figure 2 The figure is a physical connection diagram of a detection system for a circuit board of a relay protection device according to another embodiment of the present invention.

[0030] Figure 3 The figure is a schematic diagram of the working process of the detection system of the circuit board used for the relay protection device.

[0031] The accompanying drawings are numerals as follows:

[0032] 11-Box

[0033] 111-Power socket

[0034] 112-Second USB port

[0035] 12-Carrying platform

[0036] 13-Pressure device

[0037] 131-Tablet

[0038] 132-columnar body

[0039] 14-The first set of probes

[0040] 15-Second set of probes

[0041] 16-First switch button

[0042] 17- Second switch button

[0043] 18-Debugger

[0044] 181-First USB port

[0045] 19-Test circuit components

[0046] 2-Housing of relay protection device

[0047] 21-Display

[0048] 3-Computer

[0049] 31-First USB cable

[0050] 32-Second USB cable

[0051] 4-External power cord

[0052] 5- Circuit board to be tested DETAILED DESCRIPTION

[0053] In order to make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail with reference to the following embodiments. Nouns and pronouns related to people in this patent application are not limited to specific genders.

[0054] The utility model provides a circuit board detection system for a relay protection device, which is used to detect each circuit board and promptly repair the circuit board after problems are detected.

[0055] like Figure 1 As shown in FIG, it is a structural diagram of a detection system for a circuit board of a relay protection device according to the present utility model. Figure 2 As shown, it is a schematic diagram of the physical structure connection of the detection system of the circuit board for the relay protection device according to the present invention.

[0056] The detection system for a circuit board of a relay protection device includes a detection device and a debugger 18 .

[0057] The detection device includes a box body 1 , a test circuit assembly 19 , a carrier 12 , a first set of probes 14 , a second set of probes 15 , a first switch button 16 , and a second switch button 17 .

[0058] The box body 1 may be an insulating shell 2 , so as to avoid as much as possible the influence of other components of the accessories on the components inside the box body 1 .

[0059] The test circuit assembly 19 may include several components, such as one or more test circuit boards, resistors, capacitors, and other components, which, when combined, can perform the corresponding test function. The test circuit assembly 19 can be configured as needed. For example, similar to the circuitry in a relay protection device, it can be connected to the circuit board 5 under test to form a complete relay protection device circuit, allowing for online testing of the circuit board 5 under test.

[0060] The carrier 12 is a platform, which may be made of a transparent resin material and may also have a hollow portion, so that a probe can pass through the carrier 12 and contact the circuit board 5 to be tested.

[0061] A first set of probes 14 is disposed through the box body 1 and the carrier 12. One end of the first set of probes 14 can contact the circuit board 5 under test, and the other end of the first set of probes 14 can contact the test circuit assembly 19. A first switch button 16 is disposed on the box body 1 and can connect the first set of probes 14. In other words, when the first switch button 16 is in the on position, the first set of probes 14 is in operation.

[0062] A second set of probes 15 is also disposed through the box body 1 and the carrier 12. One end of the second set of probes 15 can contact the circuit board 5 under test, and the other end of the second set of probes 15 can contact the test circuit assembly 19. A second switch button 17 is disposed on the box body 1 and can connect the second set of probes 15. When the second switch button 17 is in the on position, the second set of probes 15 is in operation.

[0063] The first set of probes 14 and the second set of probes 15 are respectively used to contact different parts of the circuit board 5 under test. When the first set of probes 14 is connected, it can be used to perform normal functional testing of the circuit board 5 under test. When the second set of probes 15 is connected, it can be used to rewrite the program of the circuit board 5 under test. The first switch button 16 and the second switch button 17 can be mutually exclusive buttons. That is, when one button is pressed, the other button automatically pops up. This ensures that the first set of probes 14 and the second set of probes 15 will not be connected at the same time.

[0064] The debugger 18 (DeBugger) is connected to the test circuit assembly 19 and can rewrite the program to the circuit board 5 under test through the test circuit assembly 19. The debugger 18 can erase the program on the circuit board 5 under test and rewrite the corresponding program.

[0065] According to the detection system for circuit boards of relay protection devices of the present invention, a debugger 18 is provided and two switching buttons are used to connect different probes, so that when a problem is detected in the circuit board 5 to be tested, the program of the circuit board 5 to be tested can be rewritten, and whether there is an error in the program of the circuit board 5 to be tested can be checked, and the error in the program of the circuit board 5 to be tested can be cleared in time. The detection system has a simple structure and low cost.

[0066] Optionally, the detection system further includes a housing 2 of the relay protection device, which is connected to a test circuit assembly 19 and has a display screen 21. The housing 2 of the relay protection device is itself mounted with the display screen 21. The test circuit assembly 19 is capable of detecting the corresponding functions of the circuit board 5 under test and displaying relevant data on the display screen 21. For example, the combination of the test circuit assembly 19 and the circuit board 5 under test is equivalent to the circuit inside the housing 2 of the relay protection device. This is equivalent to an online test of the function of the circuit board 5 under test, and the relevant information can be directly obtained from the display screen 21.

[0067] Optionally, the detection system further includes a computer 3, which is connected to the debugger 18 and the housing 2 of the relay protection device. In this way, the computer 3 can control the debugger 18 to rewrite the program on the circuit board 5 to be tested. The computer 3 can also be connected to the interface on the box body 11 to control the test circuit assembly 19 to perform a test. As a specific example, the debugger 18 has a first USB interface 181, and the computer 3 is connected to the first USB interface 181 via a first USB cable 31; and / or the box body 11 has a second USB interface 112, and the computer 3 is connected to the second USB interface 112 via a second USB cable 32. Connecting to the computer 3 through the USB interface is convenient, fast, and low-cost.

[0068] Optionally, the detection system also includes an infrared scanner (not shown) connected to the computer 3. The infrared scanner is used to scan the label on the circuit board 5 to be tested. The label on the circuit board 5 to be tested contains information about the circuit board, such as the model of the circuit board 5 to be tested. The computer 3 can obtain the model through the infrared scanner and then trigger the corresponding detection program to achieve automated testing. This method is convenient and fast, saving manpower.

[0069] Optionally, the detection device also includes a pressing device 13, which is located above the supporting platform 12 and is used to press against the circuit board 5 to be tested. This can prevent the circuit board 5 to be tested from being displaced and affecting the detection. There are many ways to implement the pressing device 13, such as moving the pressing device 13 up and down by a handle. The pressing device 13 specifically includes a flat plate 131 and a plurality of columns 132 provided on the flat plate 131. The columns 132 correspond to the blank parts of the circuit board 5 to be tested, so as to press against the circuit board 5 to be tested. The details will not be repeated here. The flat plate 131 here can also be made of a transparent resin material.

[0070] Optionally, the detection system further includes a first light (not shown) and / or a second light (not shown). The first light is provided in the first switch button 16 and is illuminated when the first set of probes 14 is connected. The second light is provided in the second switch button 17 and is illuminated when the second set of probes 15 is connected. In this way, the first and second lights can be used to identify which button is currently pressed, allowing personnel to accurately determine which mode the detection system is currently in.

[0071] Optionally, the detection device further includes a power socket 111 and an external power cord 4. The power socket 111 is located on the box body 1, and the external power cord 4 can be plugged into the power socket 111 and provide power to the test circuit assembly 19. The test circuit assembly 19 can be provided with a voltage converter that can convert the voltage to a required voltage level, for example, converting 220V to 5V.

[0072] like Figure 3 As shown, the following describes in detail the detection system method flow of the circuit board of the relay protection device of the present invention.

[0073] In step 301 , a worker places the circuit board 5 to be tested on the carrier 12 .

[0074] After placement is completed, the staff can use the pressing device 13 to place the circuit board 5 to be tested on the carrier 12, and the first set of probes 14 and the second set of probes 15 are in contact with the circuit board 5 to be tested. At this time, the first switch button 16 is pressed, the first set of probes 14 are connected, and the second set of probes 15 are in the disconnected state.

[0075] Step 302: Scan the label of the circuit board 5 to be tested with an infrared scanner to obtain the model of the circuit board 5 to be tested, and trigger a testing program corresponding to the model of the testing circuit board.

[0076] As an example, the staff can use a handheld infrared scanner to scan the label on the circuit board 5 to be tested. The model of the circuit board in the label is automatically transmitted to the computer 3, and then the computer 3 triggers the corresponding detection program, such as testing the operating status of the circuit board 5 to be tested, whether the functions such as the human-machine interface driver are normal, etc.

[0077] Step 303 , if the test result is that the test passes, the next circuit board 5 to be tested is tested; if the test result is that the test fails, step 304 is executed.

[0078] In step 304, the staff presses the second switch button 17, and the second set of probes 15 is connected. The first switch button 16 is not pressed, and the first set of probes 14 is not connected. The computer 3 controls the debugger 18 to erase the program on the circuit board 5 to be tested and rewrite the corresponding program.

[0079] During the process of computer 3 controlling debugger 18 to erase the program of the circuit board under test 5, erasure failure may occur. Therefore, the number of times to erase the program can be pre-set, for example 3 times. After each execution of the erase program operation, check whether the program in the circuit board under test 5 is completely cleared. If so, execute the operation of rewriting the corresponding program. If not, execute the operation of erasing the program again. If the program in the circuit board under test 5 cannot be cleared after erasing 3 times, an error is reported.

[0080] Correspondingly, the rewriting program can also pre-set an upper limit on the number of write times, for example, 3 times. After each rewriting operation, check whether the program in the circuit board 5 to be tested has been written. If so, press the first switch button 16 and return to step 202. If not, execute the rewriting operation. If the program cannot be rewritten after 3 times of rewriting, an error is reported.

[0081] In this way, through the first group of probes 14, the second group of probes 15, the first switch button 16, the second switch button 17, and the debugger 18, when the normal inspection of the circuit board 5 to be tested fails, measures can be taken immediately to ensure that the circuit board to be tested passes the test as much as possible, thereby improving the utilization rate of the circuit board.

[0082] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A circuit board detection system for a relay protection device, which is used to detect a circuit board to be tested, the system comprising: Box body (11); a test circuit assembly (19) located in the box body (11); A carrying platform (12), located above the box body (11), the carrying platform (12) being used to carry the circuit board (5) to be tested; Characterized in that the system further comprises: A first set of probes (15) is provided through the box body (11) and the carrier platform (12) and one end of the first set of probes is capable of contacting the circuit board (5) to be tested, and the other end of the first set of probes (15) contacts the test circuit assembly (19); A second set of probes, which penetrate the box body (11) and the carrier platform (12) and have one end capable of contacting the circuit board (5) to be tested, and the other end of the second set of probes contacts the test circuit assembly (19); a first switching button (16), which is arranged on the box body (11) and is capable of switching on the first set of probes (15); a second switching button (17), which is arranged on the box body (11) and is capable of switching on the second set of probes; A debugger (18) is connected to the test circuit assembly (19) and is capable of rewriting a program into the circuit board (5) to be tested via the test circuit assembly (19).

2. The detection system according to claim 1, characterized in that Also includes: A housing (2) of a relay protection device is connected to the test circuit assembly (19), and the housing (2) has a display screen (21).

3. The detection system according to claim 2, characterized in that Also includes: A computer (3) is connected to the debugger (18) and the housing (2) of the relay protection device.

4. The detection system according to claim 3, characterized in that The debugger (18) has a first USB interface (181), and the computer (3) is connected to the first USB interface (181) via a first USB cable (31); and / or The box body (11) has a second USB interface (112), and the computer (3) is connected to the second USB interface (112) via a second USB cable (32).

5. The detection system according to claim 3, characterized in that: Also includes: An infrared scanner is connected to the computer (3), and the infrared scanner is used to scan the label of the circuit board (5) to be tested.

6. The detection system according to claim 1, characterized in that Also includes: A pressing device (13) is located above the supporting platform (12) and is used for pressing the circuit board (5) to be tested.

7. The detection system according to claim 1, characterized in that Also includes: a first light, which is provided in the first switch button (16) and is used to light up when the first group of probes (15) is turned on; and / or A second light is provided in the second switch button (17) and is used to light up when the second group of probes is turned on.

8. The detection system according to any one of claims 1 to 7, characterized in that: Also includes: A power socket (111), which is located on the box body (11); An external power cord (4) can be plugged into the power socket (111) and provide power to the test circuit assembly (19).

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