A test pin hidden type circuit board detection device

Abstract

The utility model belongs to the technical field of circuit board detection, specifically discloses a kind of test needle hidden type circuit board detection device, including detection structure and the pressure exerting structure being arranged on detection structure, detection structure includes bottom plate and the placement plate on bottom plate, and the detection column of axis symmetry is equipped on bottom plate, and detection column is slidably connected with placement plate, and spring is sleeved on detection column, and bottom end is connected with bottom plate;Test probe is equipped on bottom plate, and test probe is matched with the recessed groove structure being arranged on the top surface of placement plate, and recessed groove structure is equipped with the hidden hole matched with test probe;Pressure exerting structure includes pressure plate, and the pressure exerting top pin that is matched with placement slot and axis symmetry is equipped on the bottom surface of pressure plate.

Description

Technical Field

[0001] This utility model belongs to the field of circuit board testing technology, specifically relating to a circuit board testing device with concealed test probes. Background Technology

[0002] Currently, during the factory inspection and debugging phase of elevator circuit boards, such as the XEPOA-110 elevator circuit board produced by our company, manual operation is still required. The operator connects the elevator circuit board to a DC 24V power supply, inputs the corresponding test signals from the terminals, and uses a multimeter to perform point-to-point continuity checks based on the potential number or circuit number. This is to determine whether the components and their circuits on the circuit board, as well as the working logic, meet expectations. Because the circuit board inspection is purely manual, the workload is substantial, and prolonged inspection inevitably leads to missed or incorrect checks, making it difficult to guarantee the consistency of finished products. This can cause problems during the overall factory inspection of elevators, requiring the circuit boards to be re-inspected on the production line, often affecting normal production schedules. Utility Model Content

[0003] To address the aforementioned issues, this application provides a test probe-concealed circuit board testing device that can improve product consistency and production testing efficiency.

[0004] To achieve the above objectives, this utility model is realized through the following technical solution: A circuit board testing device with concealed test probes includes a testing structure and a pressure-applying structure disposed on the testing structure. The testing structure includes a base plate and a placement plate on the base plate. The base plate has axisymmetrically arranged test posts, which are slidably connected to the placement plate. A spring is sleeved on the test post with its bottom end connected to the base plate. The base plate has test probes that cooperate with a recessed groove structure disposed on the top surface of the placement plate. The recessed groove structure has a concealed hole that cooperates with the test probe. The pressure-applying structure includes a pressure plate, and the bottom surface of the pressure plate has a pressure-applying pin that cooperates with the placement groove and is axisymmetrically arranged. The position of the test probe is consistent with the soldering position of the lead-out terminal of the circuit board under test. The pressure-applying pin is fixed on the bottom surface of the pressure plate without affecting the circuit board components.

[0005] Preferably, the recessed groove structure includes an upper recessed groove disposed on the top surface of the placement plate and a lower recessed groove disposed within the upper recessed groove; the hidden hole is disposed within the lower recessed groove.

[0006] Preferably, the upper recessed groove has axially symmetrical inclined slots on both sides, and positioning posts are provided at the four corners of the upper recessed groove; the inclined slots facilitate the placement or removal of the circuit board in the upper recessed groove.

[0007] Preferably, the pressure plate has pressure grooves on both sides, and one end of the pressure plate protrudes from the end face of the pressure groove, so that the pressure plate can be fixed on the pressure device.

[0008] Preferably, the base plate is provided with symmetrical fixing holes; the placement plate is provided with a detection hole connected to the detection column. When the placement plate is not subjected to external force, the spring is in the extended state and the detection column is in the detection hole. When the placement plate is subjected to external force downward, the spring is in the compressed state and the detection column is in the detection hole. When the external force on the placement plate is removed, the spring is in the rebound state and the detection column is always in the detection hole.

[0009] Preferably, the pressure-applying pin is an insulated pin.

[0010] Preferably, the number of detection columns is four.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model installs a pressure-applying structure on the detection structure. By moving the pressure-applying structure downward, the test probe is driven to be exposed and connected to the elevator circuit board to be tested. This can reduce the degree of manual involvement in the elevator circuit board testing process, thereby reducing the intensity of manual labor, effectively avoiding the problems of missed detection and incorrect detection of elevator circuit boards, thus ensuring the factory consistency of elevator circuit boards and improving the testing efficiency of elevator circuit boards.

[0012] 2. This utility model uses a pressure plate to push the pressure pin downwards, thereby driving the circuit board and placement plate downwards. This exposes the hidden hole on the base plate, and the test probe connects with the lead-out terminal of the elevator circuit board. After connecting the test circuit, the test of the elevator circuit board can be completed. This circuit board testing device has accurate positioning and rapid action, eliminating the need for manual wiring and power connection in the testing process. The entire testing process is reduced from 1 minute to 5 seconds, greatly improving testing efficiency and significantly reducing the labor intensity of manual labor, thus avoiding missed and incorrect detections.

[0013] 3. This utility model can realize automated testing of elevator circuit boards, significantly improving the testing efficiency of elevator circuit boards, thereby ensuring the correctness and consistency of products leaving the factory, and effectively avoiding the risk of false detection and missed detection of elevator circuit boards; the test results of this utility model can be entered into a database by a host computer for easy query and traceability, and test reports can be output in a unified format; this utility model can automatically set various system parameters, avoiding repetitive manual work and parameter setting errors. Attached Figure Description

[0014] Figure 1 This is a top view of the structure being inspected; Figure 2 This is the main view of the structure being inspected; Figure 3 This is the left view of the structure being inspected; Figure 4 This is a top view of the pressure-applying structure; Figure 5 This is the front view of the pressure-applying structure; Figure 6 This is the left view of the pressure-applying structure.

[0015] In the diagram: 1. Fixing hole; 2. Base plate; 3. Detection post; 4. Positioning post; 5. Upper recessed groove; 6. Lower recessed groove; 7. Hidden hole; 8. Placement plate; 9. Inclined groove; 10. Spring; 11. Test probe; 12. Pressure plate; 13. Pressure pin; 14. Pressure groove. Detailed Implementation

[0016] The present invention will be further described in detail below through specific embodiments, but this does not limit the scope of the present invention.

[0017] Example 1 A circuit board testing device with concealed test probes, the structure of which is as follows: Figure 1-6 As shown, the device includes a detection structure and a pressure application structure mounted on the detection structure. The detection structure includes a base plate 2 and a placement plate 8 on the base plate 2. The base plate 2 is provided with an axisymmetric detection column 3, which is slidably connected to the placement plate 8. A spring 10 connected to the bottom end of the base plate 2 is sleeved on the detection column 3. The base plate 2 is provided with a test probe 11, which cooperates with a recessed groove structure on the top surface of the placement plate 8. The recessed groove structure is provided with a hidden hole 7 that cooperates with the test probe 11. The pressure application structure includes a pressure plate 12, and a pressure pin 13 that cooperates with the placement groove and is axisymmetrically mounted on the bottom surface of the pressure plate 12.

[0018] The recessed groove structure includes an upper recessed groove 5 on the top surface of the placement plate 8 and a lower recessed groove 6 within the upper recessed groove 5; a hidden hole 7 is located within the lower recessed groove 6. The upper recessed groove 5 has axially symmetrical inclined grooves 9 on both sides, and positioning posts 4 are provided at each of the four corners of the upper recessed groove 5. The pressure plate 12 has pressure grooves 14 on both sides, with one end of the pressure plate 12 protruding from one end face of the pressure groove 14. Fixing holes 1 are symmetrically provided on the base plate 2; the placement plate 8 has detection holes connected to the detection posts 3. The pressure pins 13 are insulated pins. There are four detection posts 3.

[0019] In this embodiment, based on the function and structural characteristics of the XEPOA-110 elevator circuit board, a test probe 11 is fixed at a suitable location on the base plate 2, and a pressure pin 13 is set at a suitable location on the pressure plate 12. The detection device in this embodiment includes two parts: a detection structure and a pressure structure. In use, the pressure plate 12 of the pressure structure is fixed to the existing pressure device through the pressure groove 14. The pressure device can be an existing electric push rod equipped with an encoder. The electric push rod can be controlled by a controller or a selector operator, or both can be used simultaneously to increase the safety redundancy of the pressure device. The detection structure is fixed to the detection line through the fixing hole 1.

[0020] In this embodiment, the recessed groove in the middle of the placement plate 8 is a double-layered recessed groove with inclined slots 9 on both sides to facilitate the placement or removal of the circuit board. The upper recessed groove 5 is used to place the circuit board, and circuit board positioning posts 4 are provided at the four corners. The lower recessed groove 6 has hidden holes 7 that correspond one-to-one with the test probes 11. The position of the test probes 11 is consistent with the soldering position of the circuit board lead-out terminals. The pressure-applying pin 13 is located in the middle of the bottom surface of the pressure plate 12 and corresponds to the position of the circuit board placement area. The pressure-applying pin 13 is set in a place that does not affect the circuit board components, and the pressure-applying pin 13 is made of PVC material.

[0021] During testing, the placement plate 8 is in a testing state supported by springs 10 on each detection post 3 on the base plate 2. At this time, the test probe 11 is hidden in the hidden hole 7 in the lower recessed groove 6 of the placement plate 8. When testing the elevator circuit board, the operator places the elevator circuit board in the upper recessed groove 5. The positioning post 4 is used to fix the elevator circuit board and restrict its movement. Then, the pressure plate 12 is controlled to move downward under the action of the pressure device. The pressure pin 13 contacts the elevator circuit board, drives the circuit board and moves the placement plate 8 through the detection hole along the detection post. 3. As the spring 10 is compressed, the test probe 11 protrudes from the lower recessed groove 6 along the hidden hole 7, contacts the elevator circuit board in the upper recessed groove 5, and presses against the solder joint of the circuit board's lead-out terminal, connecting the test circuit of the test probe 11 to complete the test of the elevator circuit board. Appropriate host computer test software can be selected to complete the test of the circuit board. At the same time, the host computer test software can automatically record the test results and enter them into the database when testing the elevator circuit board, which is convenient for data storage, query, and output of test reports.

[0022] After the test is completed, the pressure control device drives the pressure plate 12 to retract. Under the action of each spring 10, the placement plate 8 returns to its initial position. The operator can easily and quickly remove the elevator circuit board along the inclined groove 9, and then put the elevator circuit board back in for another test.

[0023] Example 2 A circuit board testing device with concealed test probes, the structure of which is as follows: Figure 1-6As shown, the device includes a detection structure and a pressure application structure mounted on the detection structure. The detection structure includes a base plate 2 and a placement plate 8 on the base plate 2. The base plate 2 is provided with an axisymmetric detection column 3, which is slidably connected to the placement plate 8. A spring 10 connected to the bottom end of the base plate 2 is sleeved on the detection column 3. The base plate 2 is provided with a test probe 11, which cooperates with a recessed groove structure on the top surface of the placement plate 8. The recessed groove structure is provided with a hidden hole 7 that cooperates with the test probe 11. The pressure application structure includes a pressure plate 12, and a pressure pin 13 that cooperates with the placement groove and is axisymmetrically mounted on the bottom surface of the pressure plate 12.

[0024] In this embodiment, based on the function and structural characteristics of the XEPOA-110 elevator circuit board, a test probe 11 is fixed at a suitable location on the base plate 2, and a pressure pin 13 is set at a suitable location on the pressure plate 12. The detection device in this embodiment includes two parts: a detection structure and a pressure structure. In use, the pressure plate 12 of the pressure structure is fixed to the existing pressure device through the pressure groove 14. The pressure device can be an existing electric push rod equipped with an encoder. The electric push rod can be controlled by a controller or a selector operator, or both can be used simultaneously to increase the safety redundancy of the pressure device. The detection structure is fixed to the detection line through the fixing hole 1.

[0025] In this embodiment, the recessed groove structure in the middle of the placement plate 8 is a double-layer recessed groove. The upper recessed groove 5 is used to place the circuit board, and the lower recessed groove 6 is provided with hidden holes 7 corresponding to the test probes 11 one by one; the position of the test probes 11 is consistent with the soldering position of the circuit board lead-out terminals; the pressure-applying pin 13 is located in the middle of the bottom surface of the pressure plate 12 and corresponds to the position of the circuit board placement area. The pressure-applying pin 13 is set in a place that does not affect the circuit board components, and the pressure-applying pin 13 is made of PVC material.

[0026] During testing, the placement plate 8 is in a testing state supported by springs 10 on each detection post 3 on the base plate 2. At this time, the test probe 11 is hidden in the hidden hole 7 in the lower recessed groove 6 of the placement plate 8. When testing the elevator circuit board, the operator places the elevator circuit board in the upper recessed groove 5. The positioning post 4 is used to fix the elevator circuit board and restrict its movement. Then, the pressure plate 12 is controlled to move downward under the action of the pressure device. The pressure pin 13 contacts the elevator circuit board, drives the circuit board and moves the placement plate 8 down the detection post 3. When the spring 10 is compressed, the test probe 11 protrudes from the lower recessed groove 6 along the hidden hole 7, contacts the elevator circuit board in the upper recessed groove 5, and presses against the solder joint of the circuit board's lead-out terminal, connecting the test circuit of the test probe 11 to complete the test of the elevator circuit board. Appropriate host computer test software can be selected to complete the test of the circuit board. At the same time, the host computer test software can automatically record the test results and enter them into the database when testing the elevator circuit board, which is convenient for data storage, query, and output of test reports.

[0027] After the test is completed, the pressure control device drives the pressure plate 12 to retract. Under the action of each spring 10, the placement plate 8 returns to its initial position. The operator can easily and quickly take out the elevator circuit board along the inclined groove 9, and then put the elevator circuit board back in for another test.

[0028] Example 3 A circuit board testing device with concealed test probes, the structure of which is as follows: Figure 1-6 As shown, the device includes a detection structure and a pressure-applying structure mounted on the detection structure. The detection structure includes a base plate 2 and a placement plate 8 on the base plate 2. A detection column 3 with axial symmetry is provided on the base plate 2, and the detection column 3 is slidably connected to the placement plate 8. A spring 10 with its bottom end connected to the base plate 2 is fitted onto the detection column 3. A test probe 11 is provided on the base plate 2, and the test probe 11 cooperates with a recessed groove structure on the top surface of the placement plate 8. A hidden hole 7 cooperating with the test probe 11 is provided within the recessed groove structure. The pressure-applying structure includes a pressure plate 12, and a pressure-applying pin 13 with axial symmetry cooperating with the placement groove is provided on the bottom surface of the pressure plate 12. The recessed groove structure includes an upper recessed groove 5 on the top surface of the placement plate 8 and a lower recessed groove 6 within the upper recessed groove 5; the hidden hole 7 is located within the lower recessed groove 6.

[0029] In this embodiment, the recessed groove in the middle of the placement plate 8 is a double-layered recessed groove with inclined slots 9 on both sides to facilitate the placement or removal of the circuit board. The upper recessed groove 5 is used to place the circuit board, and the lower recessed groove 6 has hidden holes 7 that correspond one-to-one with the test probes 11. The position of the test probes 11 is consistent with the soldering position of the circuit board lead-out terminals. The pressure-applying pin 13 is located in the middle of the bottom surface of the pressure plate 12 and corresponds to the position of the circuit board placement area. The pressure-applying pin 13 is set in a place that does not affect the circuit board components, and the pressure-applying pin 13 is made of PVC material.

[0030] When awaiting testing, the placement plate 8 is in a testing state supported by springs 10 on each detection post 3 on the base plate 2. At this time, the test probe 11 is hidden in the hidden hole 7 in the lower recessed groove 6 of the placement plate 8. When testing the elevator circuit board, the operator places the elevator circuit board in the upper recessed groove 5. The positioning post 4 is used to fix the elevator circuit board and restrict its movement. The operator controls the pressure plate 12 to move downward, and the pressure pin 13 contacts the elevator circuit board, driving the circuit board and moving the placement plate 8 down along the detection post 3 through the detection hole. The spring 10 is compressed, and the test probe 11 is exposed in the lower recessed groove 6 along the hidden hole 7, contacts the elevator circuit board in the upper recessed groove 5, and presses against the solder joint of the circuit board's lead-out terminal, connecting the test circuit of the test probe 11 and completing the testing of the elevator circuit board.

[0031] After the test is completed, the operation control pressure plate 12 moves upward, and under the action of each spring 10, the placement plate 8 returns to the initial position. The operator can easily and quickly take out the elevator circuit board along the inclined groove 9, and then put the elevator circuit board back in for another test.

[0032] Example 4 A circuit board testing device with concealed test probes, the structure of which is as follows: Figure 1-6 As shown, the device includes a detection structure and a pressure application structure mounted on the detection structure. The detection structure includes a base plate 2 and a placement plate 8 on the base plate 2. The base plate 2 is provided with an axisymmetric detection column 3, which is slidably connected to the placement plate 8. A spring 10 connected to the bottom end of the base plate 2 is sleeved on the detection column 3. The base plate 2 is provided with a test probe 11, which cooperates with a recessed groove structure on the top surface of the placement plate 8. The recessed groove structure is provided with a hidden hole 7 that cooperates with the test probe 11. The pressure application structure includes a pressure plate 12, and a pressure pin 13 that cooperates with the placement groove and is axisymmetrically mounted on the bottom surface of the pressure plate 12.

[0033] The recessed groove structure includes an upper recessed groove 5 on the top surface of the placement plate 8 and a lower recessed groove 6 within the upper recessed groove 5; a hidden hole 7 is located within the lower recessed groove 6. The upper recessed groove 5 has axially symmetrical inclined grooves 9 on both sides, and positioning posts 4 are provided at each of the four corners of the upper recessed groove 5. The pressure plate 12 has pressure grooves 14 on both sides, with one end of the pressure plate 12 protruding from one end face of the pressure groove 14. Fixing holes 1 are symmetrically provided on the base plate 2; the placement plate 8 has detection holes connected to the detection posts 3. The pressure pins 13 are insulated pins. There are four detection posts 3.

[0034] In this embodiment, the recessed groove in the middle of the placement plate 8 is a double-layered recessed groove with inclined slots 9 on both sides to facilitate the placement or removal of the circuit board. The upper recessed groove 5 is used to place the circuit board, and circuit board positioning posts 4 are provided at the four corners. The lower recessed groove 6 has hidden holes 7 that correspond one-to-one with the test probes 11. The position of the test probes 11 is consistent with the soldering position of the circuit board lead-out terminals. The pressure-applying pin 13 is located in the middle of the bottom surface of the pressure plate 12 and corresponds to the position of the circuit board placement area. The pressure-applying pin 13 is set in a place that does not affect the circuit board components, and the pressure-applying pin 13 is made of PVC material.

[0035] When awaiting testing, the placement plate 8 is in a testing state supported by springs 10 on each detection post 3 on the base plate 2. At this time, the test probe 11 is hidden in the hidden hole 7 in the lower recessed groove 6 of the placement plate 8. When testing the elevator circuit board, the operator places the elevator circuit board in the upper recessed groove 5. The positioning post 4 is used to fix the elevator circuit board and restrict its movement. The operator controls the pressure plate 12 to move downward, and the pressure pin 13 contacts the elevator circuit board, driving the circuit board and moving the placement plate 8 down along the detection post 3 through the detection hole. The spring 10 is compressed, and the test probe 11 is exposed in the lower recessed groove 6 along the hidden hole 7, contacts the elevator circuit board in the upper recessed groove 5, and presses against the solder joint of the circuit board's lead-out terminal, connecting the test circuit of the test probe 11 and completing the testing of the elevator circuit board.

[0036] After the test is completed, the operation control pressure plate 12 moves upward, and under the action of each spring 10, the placement plate 8 returns to the initial position. The operator can easily and quickly take out the elevator circuit board along the inclined groove 9, and then put the elevator circuit board back in for another test.

[0037] Example 5 A circuit board testing device with concealed test probes, the structure of which is as follows: Figure 1-6As shown, the device includes a detection structure and a pressure application structure mounted on the detection structure. The detection structure includes a base plate 2 and a placement plate 8 on the base plate 2. The base plate 2 is provided with an axisymmetric detection column 3, which is slidably connected to the placement plate 8. A spring 10 connected to the bottom end of the base plate 2 is sleeved on the detection column 3. The base plate 2 is provided with a test probe 11, which cooperates with a recessed groove structure on the top surface of the placement plate 8. The recessed groove structure is provided with a hidden hole 7 that cooperates with the test probe 11. The pressure application structure includes a pressure plate 12, and a pressure pin 13 that cooperates with the placement groove and is axisymmetrically mounted on the bottom surface of the pressure plate 12.

[0038] The recessed groove structure includes an upper recessed groove 5 on the top surface of the placement plate 8 and a lower recessed groove 6 within the upper recessed groove 5; a hidden hole 7 is located within the lower recessed groove 6. The upper recessed groove 5 has axially symmetrical inclined grooves 9 on both sides, and positioning posts 4 are provided at each of the four corners of the upper recessed groove 5. The pressure plate 12 has pressure grooves 14 on both sides, with one end of the pressure plate 12 protruding from one end face of the pressure groove 14. The base plate 2 has symmetrically arranged fixing holes 1; the placement plate 8 has detection holes connected to the detection posts 3, and axially symmetrical detection balls are provided within the detection holes, engaging with the detection grooves on the detection posts 3. The pressure-applying pin 13 is an insulated pin. There are four detection posts 3.

[0039] In this embodiment, the recessed groove in the middle of the placement plate 8 is a double-layered recessed groove with inclined slots 9 on both sides to facilitate the placement or removal of the circuit board. The upper recessed groove 5 is used to place the circuit board, and circuit board positioning posts 4 are provided at the four corners. The lower recessed groove 6 has hidden holes 7 that correspond one-to-one with the test probes 11. The position of the test probes 11 is consistent with the soldering position of the circuit board lead-out terminals. The pressure-applying pin 13 is located in the middle of the bottom surface of the pressure plate 12 and corresponds to the position of the circuit board placement area. The pressure-applying pin 13 is set in a place that does not affect the circuit board components, and the pressure-applying pin 13 is made of PVC material.

[0040] When awaiting testing, the placement plate 8 is in a testing state supported by springs 10 on each detection post 3 on the base plate 2. At this time, the test probe 11 is hidden in the hidden hole 7 in the lower recessed groove 6 of the placement plate 8. When testing the elevator circuit board, the operator places the elevator circuit board in the upper recessed groove 5. The positioning post 4 is used to fix the elevator circuit board and restrict its movement. The operator controls the pressure plate 12 to move downward, and the pressure pin 13 contacts the elevator circuit board, driving the circuit board and moving the placement plate 8 down along the detection post 3 through the detection hole. The detection ball moves along the detection slide, the spring 10 is compressed, and the test probe 11 is exposed in the lower recessed groove 6 along the hidden hole 7, contacts the elevator circuit board in the upper recessed groove 5, and presses against the solder joint of the circuit board's lead-out terminal, connecting the test circuit of the test probe 11 and completing the testing of the elevator circuit board.

[0041] After the test is completed, the operation control pressure plate 12 moves upward, and under the action of each spring 10, the placement plate 8 returns to the initial position. The operator can easily and quickly take out the elevator circuit board along the inclined groove 9, and then put the elevator circuit board back in for another test.

[0042] Example 6 A circuit board testing device with concealed test probes, the structure of which is as follows: Figure 1-6 As shown, the device includes a detection structure and a pressure application structure mounted on the detection structure. The detection structure includes a base plate 2 and a placement plate 8 on the base plate 2. The base plate 2 is provided with an axisymmetric detection column 3, which is slidably connected to the placement plate 8. A spring 10 connected to the bottom end of the base plate 2 is sleeved on the detection column 3. The base plate 2 is provided with a test probe 11, which cooperates with a recessed groove structure on the top surface of the placement plate 8. The recessed groove structure is provided with a hidden hole 7 that cooperates with the test probe 11. The pressure application structure includes a pressure plate 12, and a pressure pin 13 that cooperates with the placement groove and is axisymmetrically mounted on the bottom surface of the pressure plate 12.

[0043] The recessed groove structure includes an upper recessed groove 5 disposed on the top surface of the placement plate 8 and a lower recessed groove 6 disposed within the upper recessed groove 5; the hidden hole 7 is disposed within the lower recessed groove 6.

[0044] In this embodiment, the recessed groove in the middle of the placement plate 8 is a double-layered recessed groove, which facilitates the placement or removal of the circuit board. The upper recessed groove 5 is used to place the circuit board, and the lower recessed groove 6 is provided with hidden holes 7 corresponding to the test probes 11 one by one; the position of the test probes 11 is consistent with the soldering position of the circuit board lead-out terminals; the pressure-applying pin 13 is located in the middle of the bottom surface of the pressure plate 12 and corresponds to the position of the circuit board placement area. The pressure-applying pin 13 is set in a place that does not affect the circuit board components, and the pressure-applying pin 13 is made of PVC material.

[0045] When awaiting testing, the placement plate 8 is in a testing state supported by springs 10 on each detection column 3 on the base plate 2. At this time, the test probe 11 is hidden in the hidden hole 7 in the lower recessed groove 6 of the placement plate 8. When testing the elevator circuit board, the operator places the elevator circuit board in the upper recessed groove 5. The positioning column 4 is used to fix the elevator circuit board and restrict its movement. The operator controls the pressure plate 12 to move downward, and the pressure pin 13 contacts the elevator circuit board, driving the circuit board and moving the placement plate 8 down along the detection column 3. The detection ball moves along the detection slide, the spring 10 is compressed, and the test probe 11 is exposed in the lower recessed groove 6 along the hidden hole 7, contacts the elevator circuit board in the upper recessed groove 5, and presses against the solder joint of the circuit board's lead-out terminal, connecting the test circuit of the test probe 11 and completing the testing of the elevator circuit board.

[0046] After the test is completed, the operation control pressure plate 12 moves upward, and under the action of each spring 10, the placement plate 8 returns to the initial position. The operator can easily and quickly take out the elevator circuit board along the inclined groove 9, and then put the elevator circuit board back in for another test.

[0047] Example 7 A circuit board testing device with concealed test probes, the structure of which is as follows: Figure 1-6 As shown, the device includes a detection structure and a pressure application structure mounted on the detection structure. The detection structure includes a base plate 2 and a placement plate 8 on the base plate 2. The base plate 2 is provided with an axisymmetric detection column 3, which is slidably connected to the placement plate 8. A spring 10 connected to the bottom end of the base plate 2 is sleeved on the detection column 3. The base plate 2 is provided with a test probe 11, which cooperates with a recessed groove structure on the top surface of the placement plate 8. The recessed groove structure is provided with a hidden hole 7 that cooperates with the test probe 11. The pressure application structure includes a pressure plate 12, and a pressure pin 13 that cooperates with the placement groove and is axisymmetrically mounted on the bottom surface of the pressure plate 12.

[0048] When awaiting testing, the placement plate 8 is in a testing state supported by springs 10 on each detection post 3 on the base plate 2. At this time, the test probe 11 is hidden in the hidden hole 7 in the lower recessed groove 6 of the placement plate 8. When testing the elevator circuit board, the operator places the elevator circuit board in the upper recessed groove 5. The positioning post 4 is used to fix the elevator circuit board and restrict its movement. The operator controls the pressure plate 12 to move downward, and the pressure pin 13 contacts the elevator circuit board, driving the circuit board and moving the placement plate 8 down along the detection post 3 through the detection hole. The detection ball moves along the detection slide, the spring 10 is compressed, and the test probe 11 is exposed in the lower recessed groove 6 along the hidden hole 7, contacts the elevator circuit board in the upper recessed groove 5, and presses against the solder joint of the circuit board's lead-out terminal, connecting the test circuit of the test probe 11 and completing the testing of the elevator circuit board.

[0049] After the test is completed, the operation control pressure plate 12 moves upward, and under the action of each spring 10, the placement plate 8 returns to the initial position. The operator can easily and quickly take out the elevator circuit board along the inclined groove 9, and then put the elevator circuit board back in for another test.

[0050] The above description is only a preferred embodiment of the present utility model, but is not limited to the above examples. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A circuit board testing device with concealed test probes, characterized in that, The device includes a detection structure and a pressure-applying structure mounted on the detection structure. The detection structure includes a base plate and a placement plate on the base plate. The base plate has an axisymmetric detection column that is slidably connected to the placement plate. A spring connected to the bottom end of the detection column is fitted onto the detection column. The base plate has a test probe that mates with a recessed groove structure on the top surface of the placement plate. The recessed groove structure has a hidden hole that mates with the test probe. The pressure-applying structure includes a pressure plate with an axisymmetric pressure pin on the bottom surface that mates with the placement groove.

2. The test probe concealed circuit board testing device according to claim 1, characterized in that, The recessed groove structure includes an upper recessed groove disposed on the top surface of the placement plate and a lower recessed groove disposed within the upper recessed groove; the hidden hole is disposed within the lower recessed groove.

3. The test probe concealed circuit board testing device according to claim 2, characterized in that, The upper recessed groove has axially symmetrical inclined grooves on both sides, and positioning posts are provided at the four corners of the upper recessed groove.

4. The test probe concealed circuit board testing device according to claim 1, characterized in that, The pressure plate has pressure grooves on both sides, and one end of the pressure plate protrudes from one end face of the pressure groove.

5. The test probe concealed circuit board testing device according to claim 1, characterized in that, The base plate is symmetrically provided with fixing holes; the placement plate is provided with detection holes that are connected to the detection column.

6. The test probe concealed circuit board testing device according to claim 1, characterized in that, The pressure-applying pin is an insulated pin.

7. The test probe concealed circuit board testing device according to claim 1, characterized in that, The number of detection columns is four.

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