Circuit board repair area local heating temperature control device

Abstract

The utility model provides circuit board maintenance area local heating temperature control devices relates to circuit board processing technical field, circuit board maintenance area local heating temperature control devices, including installation storehouse, install the heating plate in installation storehouse still include the plugging subassembly, the plugging subassembly includes the fixed frame of sliding connection in installation storehouse, the transmission frame is slidably connected on the fixed frame, the transmission frame is slidably connected and has the plugging block in, the fixed connection has the conical frame on the transmission frame, the conical frame is connected with the nozzle, the transmission rod is fixedly connected with the nozzle on through the horizontal pole, the utility model discloses in cooperation with the heating plate and realizes the even flow of hot gas, need not manual movement hot -blast gun head or PCB clamp and carry out the naked eye alignment, effectively avoided the heating position deviation and temperature control unstable problem caused by the experience influence of manual operation.

Description

Technical Field

[0001] This utility model relates to the field of circuit board processing technology, and in particular to a local heating temperature control device for circuit board repair areas. Background Technology

[0002] When resoldering, resoldering, or replacing BGA chips on a circuit board, it is necessary to apply localized heating to the BGA chip and its surrounding area to melt the solder between the motherboard and the BGA chip, thereby completing the repair operation.

[0003] However, in the existing technology, when it is necessary to change the heating position, the operator must manually move the hot air gun head or PCB fixture and visually align it with the target area. Manual operation is greatly affected by factors such as the operator's experience, resulting in inconsistent product quality. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies and provide a local heating temperature control device for circuit board repair areas.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a local heating temperature control device for circuit board repair areas, comprising:

[0006] The installation chamber is equipped with a heating plate.

[0007] A sealing assembly includes a fixed frame slidably connected within an installation chamber, a transmission frame slidably connected to the fixed frame, a sealing block slidably connected within the transmission frame, a conical frame fixedly connected to the transmission frame, a nozzle connected to the conical frame, and a transmission rod connected to the nozzle via a crossbar.

[0008] In a preferred embodiment, a fixed plate is slidably connected inside the installation chamber, a universal joint is fixedly connected to the transmission rod, the universal joint on the transmission rod is fixedly connected to the fixed plate, the universal joint on the two transmission rods is fixedly connected to the crossbar on the side closer to the crossbar, a universal joint is fixedly connected to the nozzle, and the side of the universal joint on the nozzle away from the nozzle is fixedly connected to the conical frame.

[0009] The above technical solution is used in the following way: When the fixed plate is moved up and down by the electric telescopic rod, the transmission rod can be deflected, which in turn causes the crossbar to deflect, thereby causing the nozzle spray position to flip.

[0010] In a preferred embodiment, a placement plate is fixedly connected inside the installation chamber, the transmission frame is fixedly connected to the placement plate, a motor is installed on the inner wall of the installation chamber, and the output end of the motor is fixedly connected to the fixed frame.

[0011] The above technical solution is adopted as follows: In use, by starting the motor, the motor drives the fixed frame to rotate, causing the transmission shaft to slide on the fixed frame, which in turn causes the sealing block to slide through the opening on the transmission frame.

[0012] In a preferred embodiment, an air pump is installed on the installation chamber, and an air supply pipe is fixedly connected to the side of the air pump away from the installation chamber. The side of the air supply pipe away from the air pump is fixedly connected to the installation chamber.

[0013] The above technical solution is adopted: when in use, the air pump is started, so that the hot air generated by the heating plate is blown upward from the bottom of the installation chamber.

[0014] In a preferred embodiment, a heating top plate is fixedly connected to the installation chamber via a fixing rod, and the installation chamber has openings.

[0015] The above technical solution is adopted: when in use, a heated top plate is fixedly connected to the installation chamber, which facilitates the placement of the workpiece to be processed.

[0016] In a preferred embodiment, a rotating shaft is rotatably connected to the sealing block, the rotating shaft is rotatably connected to the transmission frame, the sealing block is fixedly connected to the transmission frame, an arc-shaped hole is provided on the fixed frame, and a transmission shaft is fixedly connected to the sealing block, the transmission shaft being slidably connected to the arc-shaped hole on the fixed frame.

[0017] The above technical solution is adopted: when in use, a rotating shaft is provided to facilitate the rotation of the sealing block within the transmission frame.

[0018] In a preferred embodiment, a resistance wire is installed inside the heating plate.

[0019] The above technical solution involves installing a resistance wire and then energizing the wire by connecting it to a power source installed in the mounting chamber to generate heat.

[0020] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0021] This invention achieves automated adjustment of the nozzle spray angle by using an electric telescopic rod to drive the fixed plate, which in turn drives the transmission rod and crossbar to deflect. In conjunction with the motor-driven fixed frame rotation, the sealing block moves to switch between the modes of uniformly blowing hot air through the opening of the transmission frame or directional spraying through the conical frame and nozzle. At the same time, the air pump and heating plate work together to achieve uniform flow of hot air. There is no need for manual movement of the hot air gun head or PCB fixture for visual alignment, which effectively avoids the problems of heating position deviation and unstable temperature control caused by the influence of experience in manual operation. Attached Figure Description

[0022] Figure 1A schematic diagram of the overall structure of the circuit board repair area local heating temperature control device provided by this utility model.

[0023] Figure 2 A schematic diagram of the bottom structure of the circuit board repair area local heating temperature control device provided by this utility model.

[0024] Figure 3 A schematic diagram of the top structure of the mounting compartment for the circuit board repair area local heating temperature control device provided by this utility model.

[0025] Figure 4 A schematic diagram showing the location of the sealing component in the local heating temperature control device for the circuit board repair area provided by this utility model.

[0026] Figure 5 A cross-sectional structural diagram of the installation chamber of the circuit board repair area local heating temperature control device provided by this utility model.

[0027] Figure 6 A schematic diagram of the disassembled installation compartment of the circuit board repair area local heating temperature control device provided by this utility model.

[0028] Legend:

[0029] 1. Installation chamber; 11. Heated top plate; 12. Fixing rod;

[0030] 2. Sealing assembly; 21. Transmission frame; 22. Fixing frame; 23. Sealing block; 24. Rotating shaft; 25. Transmission shaft; 26. Conical frame; 27. Transmission rod; 28. Crossbar; 29. ​​Nozzle;

[0031] 3. Heating plate;

[0032] 4. Fixing plate;

[0033] 5. Air pump; 51. Air delivery pipe;

[0034] 6. Placement board;

[0035] 7. Motor. Detailed Implementation

[0036] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] like Figure 1-6 As shown, this utility model provides a technical solution: a local heating temperature control device for circuit board repair areas, comprising:

[0038] Installation chamber 1, with heating plate 3 installed inside installation chamber 1;

[0039] The sealing assembly 2 includes a fixed frame 22 that is slidably connected to the installation chamber 1, a transmission frame 21 that is slidably connected to the fixed frame 22, a sealing block 23 that is slidably connected inside the transmission frame 21, a conical frame 26 that is fixedly connected to the transmission frame 21, a nozzle 29 that is connected to the conical frame 26, and a transmission rod 27 that is connected to the nozzle 29 via a crossbar 28.

[0040] This invention achieves automated adjustment of the spray angle of the nozzle 29 by driving the fixed plate 4 with an electric telescopic rod to deflect the transmission rod 27 and the crossbar 28. In conjunction with the motor 7 driving the fixed frame 22 to rotate, the sealing block 23 moves to switch between the modes of uniformly blowing hot air from the opening of the transmission frame 21 or directional spraying through the conical frame 26 and the nozzle 29. At the same time, the air pump 5 and the heating plate 3 work together to achieve uniform flow of hot air. There is no need for manual movement of the hot air gun head or PCB fixture for visual alignment, which effectively avoids the problems of heating position deviation and unstable temperature control caused by the influence of experience in manual operation.

[0041] Further, such as Figures 1 to 5 As shown, a fixed plate 4 is slidably connected inside the installation chamber 1. A universal joint is fixedly connected to the transmission rod 27. The universal joint on the transmission rod 27 is fixedly connected to the fixed plate 4. The universal joint on the two transmission rods 27 is fixedly connected to the crossbar 28. A universal joint is fixedly connected to the nozzle 29. The side of the universal joint on the nozzle 29 away from the nozzle 29 is fixedly connected to the conical frame 26. In use, by setting the transmission rod 27, when the fixed plate 4 is moved up and down by the electric telescopic rod, the transmission rod 27 can be deflected based on the flexible connection characteristics of the universal joint, thereby driving the crossbar 28 to deflect synchronously, realizing the flipping of the spray position of the nozzle 29, and meeting the heating direction adjustment needs in different circuit board repair scenarios.

[0042] An installation chamber 1 is fixedly connected to a placement plate 6, and a transmission frame 21 is fixedly connected to the placement plate 6. A motor 7 is installed on the inner wall of the installation chamber 1, and the output end of the motor 7 is fixedly connected to the fixed frame 22. When in use, by starting the motor 7, the output end of the motor 7 drives the fixed frame 22 to rotate. Under the guidance and constraint of the arc-shaped hole of the fixed frame 22, the transmission shaft 25 slides accordingly, thereby driving the sealing block 23 to slide stably and controllably at the opening of the transmission frame 21, realizing the automatic switching of the hot gas output mode.

[0043] An air pump 5 is installed on the mounting chamber 1. An air supply pipe 51 is fixedly connected to the side of the air pump 5 away from the mounting chamber 1. The side of the air supply pipe 51 away from the air pump 5 is fixedly connected to the mounting chamber 1. When in use, the air pump 5 is started, and the air pump 5 delivers airflow into the mounting chamber 1 through the air supply pipe 51. This can effectively drive the hot air generated by the heating plate 3 to flow evenly upward from the bottom of the mounting chamber 1, providing a stable heat source transmission path for local heating of the circuit board.

[0044] A heating top plate 11 is fixedly connected to the mounting chamber 1 by a fixing rod 12. The mounting chamber 1 has an opening. When in use, the heating top plate 11 is fixedly connected to the mounting chamber 1 to provide a stable support platform for the circuit board to be processed, which makes it easy to keep the workpiece position fixed during the heating process and improves the safety and accuracy of the heating operation.

[0045] like Figure 6 As shown, a rotating shaft 24 is rotatably connected to the blocking block 23. The rotating shaft 24 is rotatably connected to the transmission frame 21. The blocking block 23 is fixedly connected to the transmission frame 21. An arc-shaped hole is provided on the fixed frame 22. A transmission shaft 25 is fixedly connected to the blocking block 23. The transmission shaft 25 is slidably connected to the arc-shaped hole on the fixed frame 22. In use, the rotating shaft 24 provides flexible support for the rotation of the blocking block 23 in the transmission frame 21. Combined with the cooperation between the arc-shaped hole of the fixed frame 22 and the transmission shaft 25, it can ensure that the blocking block 23 maintains its trajectory during movement, thereby achieving effective control of the hot air flow path.

[0046] like Figure 5 As shown, a resistance wire is installed inside the heating plate 3. When in use, the resistance wire is installed inside the heating plate 3 and connected to the power supply on the mounting chamber 1. After being powered on, the resistance wire can quickly and stably generate heat, providing a continuous and controllable heat source for local heating of the circuit board.

[0047] Working principle:

[0048] like Figure 1-6 As shown, when in use, first install the electric telescopic rod using the opening on the installation chamber 1. The output end of the electric telescopic rod is fixed to the fixing plate 4. Then, select a square iron plate and fix it to the opening on the installation chamber 1 with bolts to seal the opening.

[0049] A power source is installed on the outer wall of the installation chamber 1 to energize the resistance wire in the heating plate 3, and the air pump 5 is started. The air pump 5 blows air into the installation chamber 1 through the air pipe 51, so that the hot air can easily escape from the opening on the transmission frame 21 and be evenly blown onto the circuit board through the opening on the installation chamber 1.

[0050] Then, the motor 7 is started, which drives the fixed frame 22 to rotate, causing the fixed frame 22 to drive the transmission shaft 25 to slide. Under the guidance of the arc-shaped hole on the fixed frame 22, the transmission shaft 25 is moved to a different position, causing the sealing block 23 to be moved out of the transmission frame 21. At this time, the opening on the transmission frame 21 is blocked, and hot air is blown upward through the transmission frame 21 and blown onto the circuit board through the conical frame 26 and the nozzle 29.

[0051] Next, the electric telescopic rod is activated, causing the fixed plate 4 to slide upwards, which in turn causes the transmission rod 27 to be displaced. At this time, the crossbar 28 will be rotated by the transmission rod 27, causing the nozzle 29, which is fixedly connected to the crossbar 28, to shift at an angle. The operator only needs to control the raising and lowering of the electric telescopic rod and use tools to attach the circuit board to the installation chamber 1 for the heating process.

[0052] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A local heating temperature control device for circuit board repair areas, characterized in that, include: Installation chamber (1), wherein a heating plate (3) is installed inside the installation chamber (1); The sealing assembly (2) includes a fixed frame (22) slidably connected in the installation chamber (1), a transmission frame (21) slidably connected to the fixed frame (22), a sealing block (23) slidably connected in the transmission frame (21), a conical frame (26) fixedly connected to the transmission frame (21), a nozzle (29) connected to the conical frame (26), and a transmission rod (27) fixedly connected to the nozzle (29) via a crossbar (28).

2. The circuit board repair area local heating temperature control device according to claim 1, characterized in that: A fixed plate (4) is slidably connected inside the installation chamber (1). A universal joint is fixedly connected to the transmission rod (27). The universal joint on the transmission rod (27) is fixedly connected to the fixed plate (4). The universal joint on the two transmission rods (27) is fixedly connected to the crossbar (28) on the side closer to the crossbar (28). A universal joint is fixedly connected to the nozzle (29). The side of the universal joint on the nozzle (29) away from the nozzle (29) is fixedly connected to the conical frame (26).

3. The circuit board repair area local heating temperature control device according to claim 1, characterized in that: The installation chamber (1) is fixedly connected to a placement plate (6), the transmission frame (21) is fixedly connected to the placement plate (6), and a motor (7) is installed on the inner wall of the installation chamber (1). The output end of the motor (7) is fixedly connected to the fixed frame (22).

4. The circuit board repair area local heating temperature control device according to claim 1, characterized in that: An air pump (5) is installed on the installation chamber (1). An air supply pipe (51) is fixedly connected to the side of the air pump (5) away from the installation chamber (1). The side of the air supply pipe (51) away from the air pump (5) is fixedly connected to the installation chamber (1).

5. The circuit board repair area local heating temperature control device according to claim 1, characterized in that: A heating top plate (11) is fixedly connected to the installation chamber (1) by a fixing rod (12). An opening is provided on the installation chamber (1).

6. The circuit board repair area local heating temperature control device according to claim 1, characterized in that: A rotating shaft (24) is rotatably connected to the sealing block (23), and the rotating shaft (24) is rotatably connected inside the transmission frame (21). The sealing block (23) is fixedly connected to the transmission frame (21), and an arc-shaped hole is opened on the fixed frame (22). A transmission shaft (25) is fixedly connected to the sealing block (23), and the transmission shaft (25) is slidably connected inside the arc-shaped hole on the fixed frame (22).

7. The circuit board repair area local heating temperature control device according to claim 1, characterized in that: A resistance wire is installed inside the heating plate (3).

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