Novel PCBA burning and testing clamp structure

Abstract

The utility model discloses a novel PCBA (printed circuit board assembly) burning and testing clamp structure, which comprises a clamp main body, a middle substrate assembly, a fixing assembly and a quick-change needle plate assembly, and the clamp main body, the middle substrate assembly, the fixing assembly and the quick-change needle plate assembly are sequentially distributed from bottom to top. Reasonable ergonomic design is adopted, neck ache caused by long-time head lowering of an operator is effectively avoided, positioning is accurate, burning failure or unstable test results can be prevented, the isolation and protection effects can be achieved, and the phenomenon that burning fails or the test results are not stable in the burning test process is effectively avoided. Dust or other external environment factors enter the burning test machine to cause interference on an internal structure or related elements.

Description

Technical Field

[0001] The utility model belongs to the technical field of burning and testing machines, in particular to a novel PCBA burning and testing fixture structure. Background Art

[0002] Burn-in testers are commonly used in the production of electronic components or devices to burn firmware, test circuit functionality, and perform quality inspections. Burn-in tester fixtures are a crucial component of burn-in testers. They are primarily used to secure electronic components (such as chips, modules, and PCBAs) to be tested or burned in a specific position, ensuring good contact and stable signal transmission during the burning and testing process.

[0003] At present, there are some burning test machines on the market. For example, a virus detector circuit board burning test machine with the announcement number CN215866974U is disclosed on the China Patent Network. This burning test machine has a simple structure and is easy to use. The virus detector circuit board is placed on the carrier board, and the top cover is closed so that the probe penetrates and contacts the virus detector circuit board. The burner is started to quickly and effectively burn the virus detector circuit board. This ensures product quality and improves test efficiency. However, there are some defects and deficiencies that need to be improved: (1) Some existing burning test machines lack reasonable ergonomic design , when the operator is performing the burn test, he needs to stretch his head toward the equipment and lower his head to check the internal burning status of the burn test machine, which can easily cause neck pain over time; (2) some existing burn test machines may have inaccurate positioning due to inaccurate fixture structure design or mechanical fatigue caused by long-term use, resulting in burn failure or unstable test results; (3) some existing burn test machines lack effective isolation protection measures. When performing the burn test, dust or other external environmental factors will enter the interior of the burn test machine, thereby interfering with the internal structure or related components. Therefore, in response to the above problems, the new PCBA burn and test fixture structure provided by the utility model is of great significance. Utility Model Content

[0004] The present utility model provides a novel PCBA burning and testing fixture structure, which adopts a reasonable ergonomic design. When an operator performs burning and testing, the internal burning situation of the burning and testing machine can be viewed by looking straight ahead, without the need to stretch the head towards the device and lower the head, thus effectively avoiding neck soreness caused by the operator lowering the head for a long time. The PCBA board to be burned and tested can be pressed down by the pressing plate through the fixing component, so as to perform burning and testing operations on the PCBA after electrical connection is formed. The fixing component can be fixed through the mutual cooperation between the electromagnetic pin output shaft and the positioning hole, to prevent the fixing component from loosening and causing the probe at the bottom of the pressing plate to disengage from the pins on the surface of the PCBA board. The driving plate can play a role in limiting, so that the fixing component is more stable when deflecting, thus effectively avoiding the fixing component from tilting and shaking, resulting in inaccurate positioning, and then causing burning failure or unstable test results. The isolation plate can fully cover the fixing component and the PCBA board to play a role in isolation and protection, so as to effectively prevent dust or other external environmental factors from entering the interior of the burning and testing machine during burning and testing and interfering with the internal structure or related components. In summary, the problems in the background technology are solved.

[0005] To solve the above technical problems, the present utility model is realized through the following technical solutions:

[0006] A novel PCBA burning and testing fixture structure of the present utility model includes a fixture main body, an intermediate substrate assembly, a fixing component, and a quick-change pin board assembly. The fixture main body, the intermediate substrate assembly, the fixing component, and the quick-change pin board assembly are sequentially distributed from bottom to top.

[0007] The fixture main body includes a lower box body assembly, and the top of the lower box body assembly is fixedly connected with an upper box body assembly. Lifting grooves are arranged on both sides of the upper box body assembly.

[0008] The intermediate substrate assembly includes a substrate. Locking plates and opening cover vertical plates are respectively fixedly connected to both sides of the substrate. An electromagnetic pin is installed on one side of the substrate. A pair of positioning blocks are rotatably connected to the top of the front side of the substrate through a rotating shaft, and a plurality of hinges are installed between the rear side of the substrate and the rear side of the upper box body assembly.

[0009] The fixing component includes a pair of side baffles. A front baffle and a rear baffle are respectively fixedly connected between the inner walls of the front side and the rear side of the side baffles. A transmission plate is fixedly connected to the outer wall of the front side of the side baffles. The transmission plate is rotatably connected to the inner side of the locking plate through a rotating shaft, and a handle is fixedly connected between the inner walls of the transmission plate. A convex block is fixedly connected to the inner wall of the side baffle, and an isolation plate is installed on the convex block.

[0010] The quick-change needle plate assembly includes a pair of support plates, a needle plate is installed on the top of the support plates, and a carrier plate is installed on the top of the needle plate.

[0011] Further, the top of the upper box body assembly is an inclined end face, and the height of its front side is less than that of the rear side.

[0012] Further, a guide post is fixedly connected to the outer wall of the transmission plate, a guide groove is formed on the inner wall surface of the locking plate, the guide groove is a waist-shaped groove structure and is arc-shaped, and the groove width of the guide groove is equal to the diameter of the guide post.

[0013] Further, a positioning hole is formed on the surface of the side baffle, the diameter of the positioning hole is equal to the diameter of the output shaft of the electromagnetic pin, and when the side baffle is placed flat, the center of the positioning hole and the center of the output shaft of the electromagnetic pin are on the same straight line.

[0014] Further, a drive plate is arranged outside the side baffle, and both ends of the drive plate are respectively movably connected to the inner sides of the transmission plate and the opening cover vertical plate through rotating shafts.

[0015] Further, a gas spring is fixedly connected to the outer wall of the side baffle, and the other end of the gas spring is fixedly connected to the outer wall of the opening cover vertical plate.

[0016] Further, the isolation plate is a rectangular glass plate structure, its length is equal to the distance between the side baffles, and the width of the isolation plate is equal to the distance between the front baffle and the rear baffle.

[0017] The utility model has the following beneficial effects compared with the prior art:

[0018] (1) When the novel PCBA burning and testing fixture structure in the utility model is in use, a reasonable ergonomic design is adopted. When the operator conducts burning and testing, the internal burning situation of the burning and testing machine can be viewed by looking straight ahead, without the need to stretch the head towards the equipment and lower the head, thus effectively avoiding neck soreness caused by the operator lowering the head for a long time;

[0019] (2) When the novel PCBA burning and testing fixture structure in the utility model is in use, the fixed component can press down the PCBA board to be burned and tested through the pressing plate, so as to conduct burning and testing operations on the PCBA after forming an electrical connection. The fixed component can be fixed through the mutual cooperation between the output shaft of the electromagnetic pin and the positioning hole, so as to prevent the fixed component from loosening and causing the probe at the bottom of the pressing plate to disengage from the pins on the surface of the PCBA board. The drive plate can play a role in limiting, so that the fixed component is more stable when deflecting, thus effectively avoiding the fixed component from tilting and shaking and resulting in inaccurate positioning, and then causing burning failure or unstable test results;

[0020] (3) When the novel PCBA burning and testing fixture structure in the present utility model is in use, the isolation plate can fully cover the fixed component and the upper part of the PCBA board to play a role of isolation and protection, thereby effectively preventing dust or other external environmental factors from entering the inside of the burning and testing machine during the burning and testing process and interfering with the internal structure or related components.

[0021] Of course, it is not necessary for any product implementing the present utility model to achieve all the above-mentioned advantages simultaneously. Brief Description of the Drawings

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0023] Figure 1 It is a front structure schematic diagram of a novel PCBA burning and testing fixture structure of the present utility model;

[0024] Figure 2 It is a back structure schematic diagram of a novel PCBA burning and testing fixture structure of the present utility model;

[0025] Figure 3 It is a structure schematic diagram of the fixture main body in the present utility model;

[0026] Figure 4 It is a structure schematic diagram of the middle substrate assembly in the present utility model;

[0027] Figure 5 It is a structure schematic diagram of the fixed component in the present utility model;

[0028] Figure 6 It is a structure schematic diagram of the quick-change needle board assembly in the present utility model;

[0029] Figure 7 It is an internal assembly schematic diagram of the present utility model.

[0030] In the drawings, the list of components represented by each reference numeral is as follows:

[0031] 1. Lower box body assembly; 2. Upper box body assembly; 3. Lifting groove; 4. Substrate; 5. Locking plate; 6. Open cover vertical plate; 7. Electromagnetic pin; 8. Positioning block; 9. Hinge; 10. Side baffle; 11. Front baffle; 12. Rear baffle; 13. Gas spring; 14. Transmission plate; 15. Handle; 16. Convex block; 17. Isolation plate; 18. Support plate; 19. Needle board; 20. Carrier plate; 21. Guide post; 22. Guide groove; 23. Positioning hole; 24. Driving plate. Detailed implementation mode

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0033] In the description of the present utility model, it should be understood that the terms "relative", "one end", "inner", "lateral", "end", "both ends", "both sides", "front", "one end face", "the other end face", etc. indicating the orientation or positional relationship are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0034] Please refer to Figure 1-6 As shown, a novel PCBA burning and testing fixture structure of the present utility model includes a fixture main body, an intermediate substrate assembly, a fixing assembly, and a quick-change pin board assembly. The fixture main body, the intermediate substrate assembly, the fixing assembly, and the quick-change pin board assembly are sequentially distributed from bottom to top;

[0035] The fixture main body includes a lower box body assembly 1. The top of the lower box body assembly 1 is fixedly connected to an upper box body assembly 2. Lifting grooves 3 are provided on both sides of the upper box body assembly 2. The lifting grooves 3 are recessed inward. By inserting fingers into the lifting grooves 3, the burning and testing machine fixture can be lifted upward for easy handling;

[0036] The intermediate substrate assembly includes a substrate 4. Locking plates 5 and opening cover vertical plates 6 are respectively fixedly connected to both sides of the substrate 4. An electromagnetic pin 7 is installed on one side of the substrate 4. A pair of positioning blocks 8 are rotatably connected to the front top of the substrate 4 through a rotating shaft. A plurality of hinges 9 are installed between the rear side of the substrate 4 and the rear side of the upper box body assembly 2. The substrate 4 can rotate around the hinges 9. When deflected to a certain angle, the substrate 4 can be opened, and at this time, it is very convenient to maintain and replace the components inside the fixture main body;

[0037] The fixing component includes a pair of side baffles 10. A front baffle 11 and a rear baffle 12 are fixedly connected between the inner walls of the front side and the rear side of the side baffle 10 respectively. A transmission plate 14 is fixedly connected to the outer wall of the front side of the side baffle 10. The transmission plate 14 is rotatably connected to the inner side of the locking plate 5 through a rotating shaft. A handle 15 is fixedly connected between the inner walls of the transmission plate 14. A convex block 16 is fixedly connected to the inner wall of the side baffle 10. An isolation plate 17 is installed on the convex block 16. By holding the handle 15, the transmission plate 14 can be driven to deflect together with the entire fixing component. When it is necessary to burn-program the PCBA board, the pressing plate can be installed at the bottom of the fixing component. Then, by rotating the handle 15 downward, the pressing plate can be pressed downward. Probes are arranged at the bottom of the pressing plate. When the pressing plate is pressed downward, the probes can contact the pins on the surface of the PCBA board to form an electrical connection. At this time, the system can perform the burn-programming test operation on the PCBA through these contact points;

[0038] The quick-change pin board component includes a pair of support plates 18. A pin board 19 is installed on the top of the support plate 18. A carrier plate 20 is installed on the top of the pin board 19. Convex columns and through holes are respectively arranged on the surfaces of the pin board 19 and the carrier plate 20. When the carrier plate 20 is placed on the top of the pin board 19, each convex column can be aligned with and pass through the corresponding through hole to fix the carrier plate 20 on the pin board 19. When performing the burn-programming test, the PCBA board can be placed on the carrier plate 20.

[0039] Among them, the top of the upper box body component 2 is an inclined end face, and its front side height is less than the rear side height. When the operator performs the burn-programming test, the internal burn-programming situation of the burn-programming machine can be viewed by looking straight ahead, without having to stretch the head towards the device and lower the head, thus effectively avoiding neck soreness caused by the operator lowering the head for a long time.

[0040] Among them, a guide post 21 is fixedly connected to the outer wall of the transmission plate 14. A guide groove 22 is formed on the inner wall surface of the locking plate 5. The guide groove 22 is a waist-shaped groove structure and is arc-shaped, and the groove width of the guide groove 22 is equal to the diameter of the guide post 21. When the fixing component deflects, the transmission plate 14 can drive the guide post 21 to rotate within a certain range along the guide groove 22. At this time, the mutual cooperation between the guide post 21 and the guide groove 22 can play a limiting role to prevent the deflection angle of the transmission plate 14 from being too large.

[0041] Among them, the surface of the side baffle 10 is provided with a positioning hole 23. The diameter of the positioning hole 23 is equal to the diameter of the output shaft of the electromagnetic pin 7. When the side baffle 10 is placed flat, the center of the positioning hole 23 and the center of the output shaft of the electromagnetic pin 7 are located on the same straight line. When the pressing plate is driven downward by the fixing component and the probe contacts the pins on the surface of the PCBA board, the output shaft can be inserted into the positioning hole 23 by driving the electromagnetic pin 7. At this time, the fixing component can be fixed through the mutual cooperation between the output shaft of the electromagnetic pin 7 and the positioning hole 23, so as to prevent the fixing component from loosening and causing the probe at the bottom of the pressing plate to separate from the pins on the surface of the PCBA board.

[0042] Among them, a driving plate 24 is arranged on the outer side of the side baffle 10. Both ends of the driving plate 24 are movably connected to the inner sides of the transmission plate 14 and the opening cover vertical plate 6 through rotating shafts respectively. When the fixing component deflects, the transmission plate 14 can drive the driving plate 24 to rotate around the opening cover vertical plate 6. At this time, the driving plate 24 can play a limiting role, so that the fixing component is more stable when deflecting, thereby effectively avoiding the fixing component from tilting and shaking, resulting in inaccurate positioning, and then causing the burning failure or unstable test results.

[0043] Among them, a gas spring 13 is fixedly connected to the outer wall of the side baffle 10, and the other end of the gas spring 13 is fixedly connected to the outer wall of the opening cover vertical plate 6. When the fixing component deflects, the gas spring 13 can play a role in supporting, buffering, braking, height and angle adjustment.

[0044] Among them, the isolation plate 17 is a rectangular glass plate structure, and its length is equal to the distance between the side baffle 10. The width of the isolation plate 17 is equal to the distance between the front baffle 11 and the rear baffle 12. When the isolation plate 17 is placed on the convex block 16, it can be respectively attached to the inner walls of the side baffle 10, the front baffle 11 and the rear baffle 12, so as to fully cover the fixing component and the PCBA board. At this time, the isolation plate 17 can play a role in isolation and protection, so as to effectively prevent dust or other external environmental factors from entering the inside of the burning and testing machine and interfering with the internal structure or related components during the burning and testing.

[0045] The circuits, electronic components and chip modules involved in the present utility model are all prior arts, which can be fully realized by those skilled in the art without further elaboration. The content protected by the present utility model does not involve the improvement of software and methods either.

[0046] The standard parts used in the application documents can all be purchased from the market. All the components in this application document can be customized according to the descriptions in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art. The electrical components mentioned in this text are all electrically connected to the external main controller and the 220V mains power supply, and the main controller can be a conventional known device that controls the LED lamp body, etc.

[0047] The working principle of the present utility model is as follows:

[0048] When the present utility model is in use, the handle 15 can be held to drive the transmission plate 14 and the entire fixing assembly to deflect, so as to open the fixing assembly. When it is necessary to burn the PCBA board, the pressing plate can be installed at the bottom of the fixing assembly. Then, the PCBA board to be burned and tested is placed on the carrier plate 20, and after the isolation plate 17 is placed on the convex block 16, the handle 15 is rotated downward to press the pressing plate downward. The bottom of the pressing plate is provided with probes. When the pressing plate is pressed downward, the probes can contact the pins on the surface of the PCBA board to form an electrical connection. At this time, the system can perform the burn-in test operation on the PCBA through these contact points. When the fixing assembly drives the pressing plate to press downward and the probes contact the pins on the surface of the PCBA board, the output shaft can be inserted into the positioning hole 23 by driving the electromagnetic pin 7. At this time, the fixing assembly can be fixed through the mutual cooperation between the output shaft of the electromagnetic pin 7 and the positioning hole 23, so as to prevent the fixing assembly from loosening and causing the probes at the bottom of the pressing plate to separate from the pins on the surface of the PCBA board. The top of the upper box body assembly 2 is an inclined end face, and the height of its front side is less than that of the rear side. When the operator performs the burn-in test, the internal burn-in situation of the burn-in tester can be viewed by looking straight ahead, without having to stretch the head into the device and lower the head, thus effectively avoiding neck soreness caused by the operator lowering the head for a long time. The isolation plate 17 can play a role in isolation and protection, so as to effectively prevent dust or other external environmental factors from entering the inside of the burn-in tester during the burn-in test and interfering with the internal structure or related components.

[0049] The fixture structure of this technical solution is composed of inaly (internal transfer pin board components, including pressing plates, pin boards, carrier plates, etc.), the upper cover pressing rod plate assembly, i.e., the pressing plate, the base fixture, i.e., the lower box body assembly 1, and the upper box body assembly 2. Features: For the fixture conversion of different products for burning or testing, only the inlay and the upper cover pressing rod part need to be replaced. The inlay and the base fixture are connected with standard pylon interfaces and module transfers. The internal wiring of the standardized fixture is more cost-effective for fixture investment.

[0050] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific embodiments described. Obviously, according to the content of this specification, many modifications and changes can be made. This specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the relevant technical field can well understand and utilize the present utility model. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A novel PCBA burning and testing fixture structure, characterized in that, It includes a fixture body, an intermediate substrate assembly, a fixing assembly, and a quick-change needle plate assembly. The fixture body, intermediate substrate assembly, fixing assembly, and quick-change needle plate assembly are sequentially distributed from bottom to top. The fixture body includes a lower box body assembly. The top of the lower box body assembly is fixedly connected to an upper box body assembly. Lifting grooves are provided on both sides of the upper box body assembly. The intermediate substrate assembly includes a substrate. Locking plates and opening cover vertical plates are respectively fixedly connected to both sides of the substrate. An electromagnetic pin is installed on one side of the substrate. A pair of positioning blocks are rotatably connected to the top of the front side of the substrate through a rotating shaft. A plurality of hinges are installed between the rear side of the substrate and the rear side of the upper box body assembly. The fixing assembly includes a pair of side baffles. A front baffle and a rear baffle are respectively fixedly connected between the front and rear inner walls of the side baffles. A transmission plate is fixedly connected to the outer wall of the front side of the side baffle. The transmission plate is rotatably connected to the inner side of the locking plate through a rotating shaft. A handle is fixedly connected between the inner walls of the transmission plate. A convex block is fixedly connected to the inner wall of the side baffle. An isolation plate is installed on the convex block. The quick-change needle plate assembly includes a pair of support plates. A needle plate is installed on the top of the support plates. A carrier plate is installed on the top of the needle plate.

2. The structure of a new type of PCBA programming and testing fixture according to claim 1, wherein, The top of the upper box body assembly is an inclined end face, and the height of its front side is less than that of its rear side.

3. A novel PCBA burning and testing fixture structure according to claim 1, characterized in that, A guide post is fixedly connected to the outer wall of the transmission plate. A guide groove is formed on the inner wall surface of the locking plate. The guide groove is a waist-shaped groove structure and is arc-shaped. The groove width of the guide groove is equal to the diameter of the guide post.

4. A novel PCBA burning and testing fixture structure according to claim 1, characterized in that, A positioning hole is formed on the surface of the side baffle. The diameter of the positioning hole is equal to the diameter of the output shaft of the electromagnetic pin. When the side baffle is placed flat, the center of the positioning hole and the center of the output shaft of the electromagnetic pin are on the same straight line.

5. A novel PCBA burning and testing fixture structure according to claim 1, characterized in that, A drive plate is arranged on the outer side of the side baffle. The two ends of the drive plate are respectively movably connected to the inner sides of the transmission plate and the opening cover vertical plate through rotating shafts.

6. A novel PCBA burning and testing fixture structure according to claim 1, characterized in that, A gas spring is fixedly connected to the outer wall of the side baffle. The other end of the gas spring is fixedly connected to the outer wall of the opening cover vertical plate.

7. A novel PCBA burning and testing fixture structure according to claim 1, characterized in that, The isolation plate is a rectangular glass plate structure. Its length is equal to the distance between the side baffles, and its width is equal to the distance between the front baffle and the rear baffle.

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