PCB temperature control detection jig

Abstract

The utility model discloses a PCB temperature control detection tool comprising a column and a temperature sensor, and the outer surface wall of the column is fixedly connected with a placing plate through a fixing sleeve. In the application, after the base is fixed in a specified area, a group of corners of the PCB are combined between the limiting strip and the placing plate, then the driving rod is rotated, the pressing plate and the driving rod are screwed, and the sleeve seat synchronously slides along the vertical end of the placing plate so as to limit the axial deflection of the pressing plate, so that the pressing plate downwards completes the positioning of the PCB; then, the deflection angle of the swing arm is adjusted through the damping rotating shaft, the telescopic length of the sliding strip is adjusted through the first positioning rod until the temperature sensor is aligned to a proper area of the PCB, finally, wiring harness connection and temperature detection are conducted, positioning of the PCB is achieved through a small contact surface, the temperature sensor with the adjustable position is matched, and the temperature sensor with the adjustable position is matched with the temperature sensor with the adjustable position. And when the temperature control detection requirement of the PCB is met, the connection of the wire harness is not hindered.

Description

Technical Field

[0001] This utility model relates to the field of testing fixture technology, and in particular to a PCB temperature control testing fixture. Background Technology

[0002] PCB temperature control testing refers to installing temperature sensors on a fixture and using corresponding hardware and software systems to monitor, record, and control temperature changes during PCB operation. This process is crucial for ensuring the stable operation of electronic equipment, extending its service life, and preventing damage caused by overheating.

[0003] Chinese Patent Publication No. CN219957645U, published on 20231103, discloses a PCB circuit board testing fixture, including a worktable. Two symmetrically distributed positioning plates are fixedly mounted on the upper surface of the worktable. The positioning plates are L-shaped. Rubber buffer pads are attached to the opposite side of the two positioning plates to avoid hard contact between the sidewalls of the positioning plates and the PCB circuit board. A first groove is formed inside the worktable. Two symmetrically distributed sliders are slidably mounted inside the first groove. The sliders are convex. Two symmetrically distributed sliding grooves are formed on the upper surface of the worktable. The protruding ends of the two sliders pass through the sliding grooves and are respectively fixedly connected to the lower surface of the two positioning plates. A lead screw with opposite threads at both ends is rotatably mounted in the first groove.

[0004] Existing PCB fixtures, such as those mentioned above, mostly achieve PCB positioning by using two sets of clamping plates that move relative to each other. In actual implementation, considering that the temperature control detection of the PCB requires the connection of external drive cables, the extended fixing method is prone to obstructing the connection. Therefore, common PCB fixtures are often not suitable for the temperature control detection of PCBs. Hence, there is an urgent need to propose corresponding PCB temperature control detection fixtures to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a PCB temperature control detection fixture in order to solve the above-mentioned problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A PCB temperature control detection fixture includes a column and a temperature sensor. A placement plate is fixedly connected to the outer wall of the column via a fixing sleeve. A limit strip is integrally formed on the top of the placement plate. A pressure plate and a lifting component for vertically pushing the pressure plate are integrated above the placement plate. A vertical seat is provided on the top of the column. A swing arm is rotatably connected to the top of the vertical seat via a damping shaft. A slide bar and a positioning component for positioning the slide bar are integrated at the open end of the swing arm. The temperature sensor is fixed to the bottom of the open end of the slide bar.

[0008] Preferably, the outer wall of the vertical base is slidably connected to the inner wall of the top of the column, and a second positioning rod is screwed onto the outer wall of the column, with the open end of the second positioning rod abutting against the outer wall of the vertical base.

[0009] Preferably, a base is fixedly connected to the bottom of the column, and a horizontally positioned mounting groove is provided on the horizontal end of the base.

[0010] Preferably, the component includes a positioning rod that is screwed to the top of the swing arm, and the open end of the positioning rod abuts against the top of the slide bar.

[0011] Preferably, the lifting assembly includes a drive rod rotatably connected to the inner surface wall of the vertical end of the placement plate, a sleeve slidably connected to the outer surface wall of the vertical end of the placement plate, the sleeve being fixedly connected to the bottom of the pressure plate, and the inner surface wall of the pressure plate being screwed into the outer surface wall of the drive rod.

[0012] Preferably, silicone pads are fixedly connected to the opposite surfaces of the pressure plate and the placement plate, and both sets of silicone pads are L-shaped.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0014] 1. In this application, after the base is fixed in the designated area, a set of corners of the PCB board are then connected between the limiting strip and the placement plate. Then, the drive rod is rotated, and the pressure plate is screwed into the drive rod. The sleeve slides synchronously along the vertical end of the placement plate to limit the axial deflection of the pressure plate, so that the pressure plate is positioned downwards to complete the positioning of the PCB board. Then, the deflection angle of the swing arm is adjusted by the damping shaft, and the extension and retraction length of the slide bar is adjusted by the positioning rod until the temperature sensor is aligned with the appropriate area of ​​the PCB board. Finally, the wiring harness is connected and the temperature is detected. The positioning of the PCB board is achieved through a small contact surface. With the adjustable temperature sensor, the temperature control and detection requirements of the PCB board are met without obstructing the wiring harness connection.

[0015] 2. In this application, the vertical seat is lifted up so that it slides against the inner wall of the column until the vertical height of the temperature sensor reaches the appropriate requirement. Then, the positioning rod two is rotated so that it is screwed into the column until the open end of the positioning rod two abuts against the outer wall of the vertical seat. In this way, the vertical height of the vertical seat and the temperature sensor is limited by friction, so that the height of the temperature sensor can be conveniently adjusted according to the requirements, thereby further expanding the application range of the PCB board fixture. Attached Figure Description

[0016] Figure 1 A schematic diagram of the overall structure according to an embodiment of the present utility model is shown;

[0017] Figure 2A schematic diagram of a swing arm structure according to an embodiment of the present invention is shown;

[0018] Figure 3 A schematic diagram of a pressure plate structure according to an embodiment of the present invention is shown;

[0019] Figure 4 A schematic diagram of the vertical support structure provided according to an embodiment of the present utility model is shown.

[0020] Legend:

[0021] 1. Base; 2. Mounting slot; 3. Column; 4. Fixing sleeve; 5. Placement plate; 6. Limiting strip; 7. Sleeve seat; 8. Drive rod; 9. Pressure plate; 10. Silicone pad; 11. Vertical seat; 12. Swing arm; 13. Positioning rod one; 14. Slide bar; 15. Temperature sensor; 16. Positioning rod two. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 This utility model provides a technical solution:

[0024] A PCB temperature control detection fixture includes a column 3 and a temperature sensor 15. A placement plate 5 is fixedly connected to the outer wall of the column 3 through a fixing sleeve 4. A limit strip 6 is integrally formed on the top of the placement plate 5. A pressure plate 9 and a lifting component for vertically pushing the pressure plate 9 are integrated above the placement plate 5. A vertical seat 11 is provided on the top of the column 3. A swing arm 12 is rotatably connected to the top of the vertical seat 11 through a damping shaft. A slide bar 14 and a positioning component for positioning the slide bar 14 are integrated at the open end of the swing arm 12. The temperature sensor 15 is fixed at the bottom of the open end of the slide bar 14.

[0025] After fixing the base 1 in the designated area, a set of corners of the PCB board are then connected between the limiting strip 6 and the placement plate 5. Then, the drive rod 8 is rotated, and the pressure plate 9 is screwed into the drive rod 8. The sleeve 7 slides synchronously along the vertical end of the placement plate 5 to limit the axial deflection of the pressure plate 9, so that the pressure plate 9 can be positioned downwards to complete the positioning of the PCB board. Then, the deflection angle of the swing arm 12 is adjusted by the damping shaft, and the extension and retraction length of the slide bar 14 is adjusted by the positioning rod 13 until the temperature sensor 15 is aligned with the appropriate area of ​​the PCB board. Finally, the wiring harness is connected and the temperature is detected. The PCB board is positioned by using a small contact surface. With the adjustable temperature sensor 15, the PCB board temperature control detection requirements are met without obstructing the wiring harness connection.

[0026] Specifically, such as Figure 2 and Figure 4 As shown, the outer wall of the vertical seat 11 is slidably connected to the inner wall of the top of the column 3. A positioning rod 16 is screwed onto the outer wall of the column 3. The open end of the positioning rod 16 abuts against the outer wall of the vertical seat 11. The vertical seat 11 is lifted up so that it slides against the inner wall of the column 3 until the vertical height of the temperature sensor 15 reaches the appropriate requirement. Then, the positioning rod 16 is rotated so that it is screwed onto the column 3 until the open end of the positioning rod 16 abuts against the outer wall of the vertical seat 11. In this way, the vertical height of the vertical seat 11 and the temperature sensor 15 is limited by friction, so that the height of the temperature sensor 15 can be conveniently adjusted according to the requirements, thereby further expanding the application range of the PCB board fixture.

[0027] Specifically, such as Figure 2 and Figure 3 As shown, a base 1 is fixedly connected to the bottom of the column 3, and a horizontally set mounting groove 2 is opened at the horizontal end of the base 1. An external fastening rod passes through the mounting groove 2 and is screwed into the external screw hole to realize the positioning of the testing fixture. The positioning component includes a positioning rod 13 that is screwed into the top of the swing arm 12, and the open end of the positioning rod 13 abuts against the top of the slide bar 14. The outer wall of the positioning rod 13 is screwed into the top of the swing arm 12. By rotating the positioning rod 13 so that its open end abuts against the outer wall of the slide bar 14, the slide bar 14 can be positioned. The lifting component includes a drive that is rotatably connected to the inner wall of the vertical end of the placement plate 5. The moving rod 8 and the outer wall of the vertical end of the placement plate 5 are slidably connected to the sleeve 7. The sleeve 7 is fixedly connected to the bottom of the pressure plate 9, and the inner wall of the pressure plate 9 is screwed to the outer wall of the driving rod 8. When the driving rod 8 is rotated, the pressure plate 9 and the driving rod 8 are screwed together, and the sleeve 7 slides synchronously along the vertical end of the placement plate 5 to limit the axial deflection of the pressure plate 9, so that the pressure plate 9 can complete the downward positioning of the PCB board. The opposing surfaces of the pressure plate 9 and the placement plate 5 are fixedly connected to silicone pads 10, and both sets of silicone pads 10 are L-shaped to ensure the stability of the PCB board positioning while avoiding damage to the outer side of the PCB board.

[0028] Working principle: After fixing the base 1 in the designated area, a set of corners of the PCB board is then connected between the limiting strip 6 and the placement plate 5. Then, the drive rod 8 is rotated, and the pressure plate 9 screws onto the drive rod 8. Simultaneously, the sleeve 7 slides along the vertical end of the placement plate 5 to limit the axial deflection of the pressure plate 9, allowing the pressure plate 9 to position the PCB board downwards. Next, the deflection angle of the swing arm 12 is adjusted via the damping shaft, and the extension and retraction length of the slide bar 14 is adjusted via the positioning rod 13 until the temperature sensor 15 is aligned with the appropriate area of ​​the PCB board. Finally, the wiring harness is connected and the temperature is detected, achieving PCB board positioning through a small contact surface. The positioning of the B board, in conjunction with the adjustable temperature sensor 15, meets the temperature control and detection requirements of the PCB board without obstructing the wiring harness connection. The vertical seat 11 is lifted to slide against the inner wall of the column 3 until the vertical height of the temperature sensor 15 reaches the appropriate requirement. Then, the positioning rod 16 is rotated to engage with the column 3 until the open end of the positioning rod 16 abuts against the outer wall of the vertical seat 11. This frictional force limits the vertical height of the vertical seat 11 and the temperature sensor 15, allowing the height of the temperature sensor 15 to be easily adjusted according to requirements, thereby further expanding the applicability of the PCB board fixture.

[0029] The above description of the embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A PCB temperature control detection jig comprising a column (3) and a temperature sensor (15), characterized in that, The outer wall of the stand (3) is fixedly connected with a placing plate (5) through a fixing sleeve (4), the top of the placing plate (5) is integrally formed with a limiting strip (6), the placing plate (5) is integrated with a pressing plate (9) and a lifting assembly for vertically pushing the pressing plate (9) above, the top of the stand (3) is provided with a vertical seat (11), the top of the vertical seat (11) is rotatably connected with a swing arm (12) through a damping rotating shaft, the open end of the swing arm (12) is integrated with a sliding strip (14) and a positioning assembly for positioning the sliding strip (14), and the temperature sensor (15) is fixed to the bottom of the open end of the sliding strip (14).

2. The PCB temperature control detection fixture of claim 1, wherein, The outer wall of the vertical seat (11) is slidably connected with the inner wall of the top of the stand (3), the outer wall of the stand (3) is screwedly connected with a second positioning rod (16), and the open end of the second positioning rod (16) abuts against the outer wall of the vertical seat (11).

3. The PCB temperature control detection fixture of claim 2, wherein, The bottom of the stand (3) is fixedly connected with a base (1), and the horizontal end of the base (1) is provided with a horizontally arranged mounting groove (2).

4. The PCB temperature control detection fixture of claim 3, wherein, The assembly comprises a first positioning rod (13) screwedly connected with the top of the swing arm (12), and the open end of the first positioning rod (13) abuts against the top of the sliding strip (14).

5. The PCB temperature control detection fixture of claim 4, wherein, The lifting assembly comprises a driving rod (8) rotatably connected with the inner wall of the vertical end of the placing plate (5), the outer wall of the vertical end of the placing plate (5) is slidably connected with a sleeve seat (7), the sleeve seat (7) is fixedly connected with the bottom of the pressing plate (9), and the inner wall of the pressing plate (9) is screwedly connected with the outer wall of the driving rod (8).

6. The PCB temperature control detection fixture of claim 5, wherein, The opposite surfaces of the pressing plate (9) and the placing plate (5) are fixedly connected with silica gel pads (10), and the two groups of silica gel pads (10) are L-shaped structures.

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