Multi-pin welding clamp for planar transformer

Abstract

The planar transformer multi-pin welding clamp comprises a clamp body and a bottom plate, the clamp body is used for supporting a transformer PCB, the appearance of the clamp body is of a rectangular structure in the overlook view, the bottom plate is located at the bottom of the clamp body, and the two sides of the top end of the clamp body are each provided with a limiting part used for limiting the installation position of the transformer PCB. The top of the clamp body is provided with positioning holes for placing pins of a transformer PCB, and the middle part of the top end of the clamp body is provided with a positioning bulge; the positioning holes, the limiting parts and the positioning protrusions are adopted, effective position positioning and limiting can be conducted on the transformer PCB and the transformer pins, the welding process is clear at a glance, operability and consistency of the planar transformer in the machining process are guaranteed, and input of human resources is reduced.

Description

Technical Field

[0001] This invention relates to the field of transformer manufacturing, specifically to a multi-pin welding fixture for planar transformers. Background Technology

[0002] Planar transformers are soldered using various PCB boards and transformer pins. These PCB boards are often stacked during soldering. The soldering process requires positioning and limiting different types of transformer PCB boards and pins. Relying solely on manual operation cannot guarantee the accuracy and consistency of positioning, making the operation quite complex and subject to many human factors. Therefore, a multi-pin soldering fixture for planar transformers is proposed. Summary of the Invention

[0003] The purpose of this invention is to provide a multi-pin welding fixture for planar transformers 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 welding fixture, comprising a fixture body for supporting a transformer PCB board and having a rectangular structure in top view, and a base plate located at the bottom of the fixture body. The top two sides of the fixture body are provided with limiting parts for restricting the installation position of the transformer PCB board. The top of the fixture body is provided with positioning holes for placing the pins of the transformer PCB board, and the top center of the fixture body is provided with a positioning protrusion, and both sides of the positioning protrusion are provided with concave ribs.

[0005] Furthermore, the limiting part is provided in four sets, and the four sets of limiting parts are arranged on the fixture body. Each set of limiting parts consists of a first limiting block and a second limiting block. The first limiting block is arranged along the width direction of the fixture body, and the second limiting block is arranged along the length direction of the fixture body. The top view of the first limiting block and the second limiting block are both rectangular structures.

[0006] Furthermore, the top edge of the clamp body is provided with a mounting hole, and a second fastener is provided in the mounting hole, and the clamp body is fixedly connected to the base plate by the second fastener.

[0007] Furthermore, the top of the clamp body is provided with a groove for the positioning protrusion to be placed, and the bottom of the clamp body is provided with a first fastener, and the bottom of the clamp body is fixedly connected to the positioning protrusion by the first fastener.

[0008] Furthermore, a wear-resistant ring is embedded in the cavity of the positioning hole.

[0009] The beneficial effects of this invention are: by using positioning holes, limiting parts and positioning protrusions, this invention can optimize and decompose the transformer pin welding sequence based on the product processing drawings, effectively position and limit the transformer PCB board and transformer pins, making the welding process clear at a glance, ensuring the operability and consistency of the planar transformer in the processing process, reducing the input of human resources, and facilitating the promotion and use of the multi-pin welding fixture for the planar transformer. Attached Figure Description

[0010] Figure 1 This is a top view of the multi-pin welding fixture for planar transformers of the present invention; Figure 2 This is a front structural cross-sectional view of the multi-pin welding fixture for planar transformers of the present invention.

[0011] In the figure: 1. Fixture body; 101. Groove; 2. Mounting hole; 3. First limit block; 4. Second limit block; 5. Positioning hole; 6. Wear-resistant ring; 7. Positioning protrusion; 8. Concave rib; 9. First fastener; 10. Second fastener; 11. Base plate. Detailed Implementation

[0012] 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.

[0013] Please see Figure 1-2 This invention provides a technical solution: a planar transformer multi-pin welding fixture, comprising a fixture body 1 for supporting a transformer PCB board and having a rectangular structure in top view, and a base plate 11 located at the bottom of the fixture body 1. The fixture body 1 and the base plate 11 have the same lateral length, and both the base plate 11 and the fixture body 1 have a rectangular structure in top view. Limiting parts for restricting the installation position of the transformer PCB board are provided on both sides of the top of the fixture body 1. The top of the fixture body 1 has a positioning hole 5 for placing the pins of the transformer PCB board. A wear-resistant ring 6 is embedded in the cavity of the positioning hole 5. A positioning protrusion 7 is provided in the middle of the top of the fixture body 1. Recessed ribs 8 are provided on both sides of the positioning protrusion 7. The setting of the recessed ribs 8 can improve the overall structural strength of the positioning protrusion 7 and increase the friction of the side of the positioning protrusion 7, so that the transformer PCB board can be stably placed on the fixture body 1. The top view of the positioning protrusion 7 has a rounded rectangular structure.

[0014] The fixture body 1 is equipped with four sets of limiting parts. Each set of limiting parts consists of a first limiting block 3 and a second limiting block 4. The first limiting block 3 is arranged along the width direction of the fixture body 1, and the second limiting block 4 is arranged along the length direction of the fixture body 1. The top view of the first limiting block 3 and the second limiting block 4 is rectangular. The first limiting block 3 limits the width of the transformer PCB board, and the second limiting block 4 limits the length of the transformer PCB board. The four sets of limiting parts can limit the length and width of the transformer PCB board, so that the transformer PCB board is stably placed on the fixture body 1. The length of the second limiting block 4 does not exceed half the horizontal length of the fixture body 1, and the length of the first limiting block 3 does not exceed half the vertical length of the fixture body 1.

[0015] In this embodiment, the top edge of the clamp body 1 is provided with a mounting hole 2. The mounting hole 2 has a ring-shaped structure when viewed from above. A second fastener 10 is provided in the mounting hole 2, and the clamp body 1 is fixedly connected to the base plate 11 by the second fastener 10. The cross-sectional shape of the base plate 11 is "U" shaped. The top of the clamp body 1 is provided with a groove 101 for the positioning protrusion 7 to be placed. The bottom of the clamp body 1 is provided with a first fastener 9, and the bottom of the clamp body 1 is fixedly connected to the positioning protrusion 7 by the first fastener 9. Both the first fastener 9 and the second fastener 10 are screws or bolts.

[0016] Before use, the multi-pin welding fixture for planar transformers first fixes the positioning protrusion 7 to the fixture body 1 with the first fastener 9. Then, the fixture body 1 is installed on the base plate 11 with the second fastener 10. The multi-layer PCB board and pins of the planar transformer are then placed on the fixture body 1. By using the positioning hole 2, the limiting part and the positioning protrusion 7, the fixture can optimize and decompose the product processing drawing according to the welding sequence of the transformer pins, and effectively position and limit the transformer PCB board and transformer pins to quickly perform welding work. Through the fixture body 1, the welding sequence is decomposed according to the processing requirements and the actual welding sequence to achieve the final welding requirements.

[0017] 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.

[0018] 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.

[0019] 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 multi-pin welding fixture for a planar transformer, characterized in that: The fixture includes a clamp body that supports a transformer PCB board and has a rectangular shape when viewed from above, and a base plate located at the bottom of the clamp body. The top two sides of the clamp body are provided with limiting parts for restricting the installation position of the transformer PCB board. The top of the clamp body is provided with positioning holes for the placement of the transformer PCB board pins, and the top center of the clamp body is provided with a positioning protrusion, and both sides of the positioning protrusion are provided with concave ribs.

2. The planar transformer multi-pin welding fixture according to claim 1, characterized in that: The limiting part is provided in four sets, and the four sets of limiting parts are arranged on the fixture body. Each set of limiting parts consists of a first limiting block and a second limiting block. The first limiting block is arranged along the width direction of the fixture body, and the second limiting block is arranged along the length direction of the fixture body. The top view of the first limiting block and the second limiting block are both rectangular structures.

3. The planar transformer multi-pin welding fixture according to claim 1, characterized in that: The top edge of the clamp body is provided with a mounting hole, and a second fastener is provided in the mounting hole. The clamp body is fixedly connected to the base plate by the second fastener.

4. The planar transformer multi-pin welding fixture according to claim 1, characterized in that: The top of the clamp body is provided with a groove for the positioning protrusion to be placed, and the bottom of the clamp body is provided with a first fastener, and the bottom of the clamp body is fixedly connected to the positioning protrusion by the first fastener.

5. The planar transformer multi-pin welding fixture according to claim 1, characterized in that: A wear-resistant ring is embedded in the cavity of the positioning hole.

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