Multi-pin pressing clamp for planar transformer

Abstract

The invention discloses a planar transformer multi-pin pressing clamp which comprises a base, supporting columns installed on the two sides of the top end of the base, a supporting plate transversely arranged on the supporting columns and flush with the base, and a bearing plate installed on the base and used for supporting a planar transformer PCB, and a pressing plate is transversely arranged between the supporting plate and the bearing plate. The supporting plate is provided with a pressing pushing part used for driving the pressing plate to press the planar transformer PCB downwards. According to the invention, the operation is simple, the fixture is used as a support, the PCB is positioned and limited after being glued and stacked, the central hole and the flatness of the PCB after being glued and stacked are effectively solved one by one, the investment of human resources and the waiting time are reduced, and the operability and the consistency of the planar transformer in the processing process are ensured.

Description

Technical Field

[0001] This invention relates to the field of planar transformer PCB board pressing fixtures, specifically a planar transformer multi-pin pressing fixture. Background Technology

[0002] Planar transformers are transformers with low height and large surface area. The large base area and low height of planar transformers save space and improve heat dissipation efficiency. However, since planar transformers are made by soldering and gluing multiple PCB boards together, the center hole positions of the multiple PCB boards are not easy to align after gluing and stacking, which can easily lead to misalignment. Furthermore, misalignment between PCB boards will prevent the installation of planar E-type magnetic cores, making the operation more complicated and subject to more human factors. At the same time, the flatness of the PCB boards after gluing and stacking is low. To address these issues, a multi-pin pressing fixture for planar transformers is proposed. Summary of the Invention

[0003] The purpose of this invention is to provide a planar transformer multi-pin pressing fixture to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a planar transformer multi-pin pressing fixture, comprising a base, support columns mounted on both sides of the top of the base, a support plate horizontally placed on the support columns and flush with the base, and a carrier plate mounted on the base for supporting the planar transformer PCB board. A pressure plate is horizontally placed between the support plate and the carrier plate. The support plate is provided with a pressing and pushing part for driving the pressure plate to press down on the planar transformer PCB board. A screw hole is opened in the middle of the top of the support plate, and guide holes are opened on both sides of the top of the support plate. The pressing and pushing part includes a guide column that passes vertically through the guide hole and is fixed to the top surface of the pressure plate, and a pressing column that is vertically screwed into the screw hole and attached to the top surface of the pressure plate. At least two sets of guide columns are provided and are correspondingly arranged on both sides of the pressure plate.

[0005] Furthermore, a stop block is detachably connected to the top of the guide post, and springs are movably sleeved on the outer surface of the guide post located between the stop block and the top surface of the tray, and on the outer surface of the guide post located between the bottom of the tray and the top of the pressure plate.

[0006] Furthermore, the outer surface of the pressure column is provided with an external thread that matches the internal thread of the screw hole, and a handle is fixed to the top of the pressure column.

[0007] Furthermore, the top of the support plate is provided with a positioning platform and a mounting hole for positioning and limiting the planar transformer PCB board. The center hole of the planar transformer PCB board is perpendicular to the mounting hole. The planar transformer PCB board is formed by stacking multiple PCB boards and placed on the support plate.

[0008] Furthermore, the top two edges of the tray are laterally fixed to the support column by the first fastener, and the tray, base and bearing plate are all rectangular in shape when viewed from above.

[0009] The beneficial effects of this invention are: This invention is simple to operate. It uses a fixture as a support and a positioning table, mounting holes, pressure columns, and pressure plates to position and limit the PCB boards after they have been coated and stacked. It effectively solves the problems of center hole misalignment and flatness after the PCB boards have been coated and stacked, ensuring that the center hole of the PCB boards after coating and stacking is aligned with the center of the mounting hole. This reduces the investment of manpower and waiting time, and ensures the operability and consistency of the planar transformer during the processing. It solves the problems of center hole misalignment and flatness after the PCB boards have been coated and stacked.

[0010] After the multi-pin planar transformer of this invention is soldered and coated with adhesive, the PCB boards of each planar transformer can be stacked together in sequence. The coated PCB boards are then pressed to ensure that the center holes of the PCBs are aligned and not misaligned after stacking. The stacked PCB boards are flat and well-fitted, which is conducive to the widespread use of the multi-pin pressing fixture for the planar transformer. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a front view of the structure of the present invention; Figure 3 This is a top view of the structure of the tray of the present invention.

[0012] In the diagram: 1. Base; 2. Support column; 3. Support plate; 301. Screw hole; 302. Guide hole; 4. First fastener; 5. Bearing plate; 501. Positioning platform; 502. Mounting hole; 6. Pressure plate; 7. Guide column; 701. Spring; 702. Stop block; 8. Downward pressure column; 9. Handle. Detailed Implementation

[0013] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0014] Please see Figure 1-3This invention provides a technical solution: a planar transformer multi-pin pressing fixture, comprising a base 1, support columns 2 mounted on both sides of the top of the base 1, a pallet 3 horizontally placed on the support columns 2 and flush with the base 1, and a support plate 5 mounted on the base 1 for supporting the planar transformer PCB board. A pressure plate 6 is horizontally placed between the pallet 3 and the support plate 5. The top two edges of the pallet 3 are horizontally fixed to the support columns 2 by first fasteners 4. The pallet 3, the base 1, and the support plate 5 are all rectangular in shape when viewed from above. The pallet 3 is provided with a pressing and pushing part for driving the pressure plate 6 to press down on the planar transformer PCB board. The top center of the pallet 3 is open. The plate 3 is provided with screw holes 301 and guide holes 302 are provided on both sides of the top end of the plate 3. The pressing and pushing part includes a guide post 7 that passes vertically through the guide hole 302 and is fixed to the top surface of the pressure plate 6, and a pressing post 8 that is vertically screwed into the screw hole 301 and attached to the top surface of the pressure plate 6. There are at least two sets of guide posts 7 and they are arranged on both sides of the pressure plate 6. The diameter of the guide post 7 does not exceed the diameter of the cavity of the guide hole 302. The top end of the guide post 7 is detachably connected to a stop block 702. The outer surface of the guide post 7 between the stop block 702 and the top surface of the plate 3, and the outer surface of the guide post 7 between the bottom of the plate 3 and the top of the pressure plate 6 are movably fitted with springs 701.

[0015] It should be noted that the outer surface of the pressure column 8 is provided with an external thread that matches the internal thread of the screw hole 301. The top of the pressure column 8 is fixed with a handle 9. When the pressure column 8 is rotated clockwise by the handle 9, the pressure column 8 rotates downward spirally in the screw hole 301. The downward spiraling pressure column 8 will continuously push the pressure plate 6 to press against the planar transformer PCB board on the support plate 5. At this time, the guide column 7 also moves vertically downward in the guide hole 302 as the pressure plate 6 moves downward, so that the pressure plate 6 can press the planar transformer PCB board smoothly. At this time, the spring 701 will be compressed when the guide column 7 moves downward to prevent the stop block 702 from causing pressure wear on the support plate 3. When the pressure column 8 is rotated counterclockwise by the handle 9, the pressure column 8 will move upward continuously in the screw hole 301 to release the pressure plate 6. At this time, the spring 701 compressed by the upward movement of the guide column 7 rebounds, releasing the pressure plate 6 and then releasing the planar transformer PCB board that is being pressed.

[0016] In this embodiment, the top of the carrier plate 5 is provided with a positioning platform 501 and a mounting hole 502 for positioning and limiting the planar transformer PCB board. The center hole of the planar transformer PCB board is perpendicular to the mounting hole 502. The planar transformer PCB board is formed by stacking multiple PCB boards and placed on the carrier plate 5.

[0017] This planar transformer multi-pin pressing fixture is used because the planar transformer is formed by welding and gluing multiple PCB boards together. The planar transformer PCB is fixed on the carrier plate 5 by external standard parts, and the carrier plate 5 is fixed on the base 1 by screws. Then, the pressure plate is driven vertically downward by the pressure column to press the planar transformer PCB, so that the multiple PCB boards are glued and stacked. Then, the pressed PCB board and the pressing fixture are placed in a high-temperature equipment to bake and cure the glued area. After curing, the pressing fixture is removed and the finished planar transformer PCB board can be taken out.

[0018] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0019] The above embodiments only illustrate preferred embodiments of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be understood that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. In the present invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can refer to a mechanical connection; it can refer to a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between two components. Among these, there are various ways of detachable installation, such as by using a combination of plug-in and snap-fit, or by using bolt connections, etc.

[0020] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A planar transformer multi-pin press fixture, characterized by: The application relates to a supporting device for planar transformer PCB boards, which comprises a base, supporting columns installed on both sides of the top end of the base, a supporting plate horizontally arranged on the supporting columns and flush with the base, and a bearing plate installed on the base and used for supporting the planar transformer PCB boards, wherein a pressing plate is horizontally arranged between the supporting plate and the bearing plate, a pressing pushing part for driving the pressing plate to press down the planar transformer PCB boards is arranged on the supporting plate, screw holes are formed in the middle part of the top end of the supporting plate, guide holes are formed on both sides of the top end of the supporting plate, the pressing pushing part comprises guide columns vertically penetrating through the guide holes and fixed on the top surface of the pressing plate, and pressing columns vertically screwed into the screw holes and attached to the top surface of the pressing plate, and the guide columns are arranged on both sides of the pressing plate in at least two groups.

2. A planar transformer multi-pin press fixture according to claim 1, characterized in that: The top end of the guide column is detachably connected with a stopper, the outer surface of the guide column between the stopper and the top surface of the supporting plate is movably sleeved with a spring, and the outer surface of the guide column between the bottom of the supporting plate and the top of the pressing plate is movably sleeved with a spring.

3. The planar transformer multi-pin press fixture of claim 1, wherein: The outer surface of the pressing column is provided with external threads matched with the internal threads of the screw holes, and a handle is fixed on the top end of the pressing column.

4. The planar transformer multi-pin press fixture of claim 1, wherein: The top end of the bearing plate is respectively provided with a positioning table and a mounting hole for positioning and limiting the planar transformer PCB boards, the central hole of the planar transformer PCB boards is vertically opposite to the mounting hole, the planar transformer PCB boards are formed by stacking a plurality of PCB boards and placed on the bearing plate.

5. The planar transformer multi-pin press fixture of claim 1, wherein: The top end of the supporting plate is horizontally fixed on the supporting columns through first fasteners, the top view of the supporting plate, the base and the bearing plate all have a rectangular structure.

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