Clamping type pin structure
By designing a card pin structure on the PCB board and fixing the flat line pins with reverse notch plugs, the flat line prying problem is solved, and the usage rate and conductivity of the PCB board are improved.
Patent Information
- Application Number
- CN202422007136.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-19
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-08-19
AI Technical Summary
In the prior art, large-sized holes are required to be opened on the PCB board for the flat line to pass through, which affects the usage rate of the board, and traditional structures are prone to cause the flat line to be pried open.
A card pin structure is designed, by setting a card structure between the first flat line pin and the second flat line pin, and fixing with reverse notch plugs to avoid prying and reducing the size requirements for PCB board holes.
It improves the usage rate of PCB board, avoids the opening of large-sized holes, ensures the integrity of the conductive path, and does not affect the resistance value of the coil winding.
Smart Images
Figure CN223092665U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of transformers, in particular to a card-type pin structure. Background Art
[0002] A PCB transformer is a transformer specifically designed for a printed circuit board. It is usually a surface-mounted device located on the surface of the circuit board to provide any voltage transformation or current transformation that may be required. Currently, for the circuit board used in power supplies, the transformer is plugged and fixed on the PCB. When the flat wires in the transformer exit, they need to pass through holes pre-opened on the PCB. However, the traditional flat wires lack a fixing structure between them, resulting in the flat wires being easily pried open when they exit. Therefore, the traditional PCB board needs to have holes with a large enough size to allow the flat wires to pass through. Such large-sized openings are likely to affect the utilization rate of the PCB board. Currently, the customer's requirement is that the wattage per unit volume is as large as possible. Therefore, the product needs to minimize the space as much as possible. Thus, it is particularly important to design a card-type pin structure to solve the above problems. Content of the Utility Model
[0003] 1. Technical Problems to be Solved by the Utility Model
[0004] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a card-type pin structure, aiming to solve the problem that in the prior art, in order to allow the flat wires to pass through, holes with a large enough size need to be opened on the PCB board, which is likely to affect the utilization rate of the PCB board.
[0005] 2. Technical Solutions
[0006] To achieve the above purpose, the utility model provides the following technical solutions:
[0007] A card-type pin structure includes a transformer body installed on a PCB board. Multiple pin structures are connected and led out on the transformer body. The pin structure includes a first flat wire pin and multiple second flat wire pins. The first flat wire pin includes a first horizontal section and a first vertical section. Each of the second flat wire pins includes a second horizontal section and a second vertical section. A clamping structure is arranged between the first flat wire pin and the second flat wire pins. The clamping structure is used to connect and fix the multiple second flat wire pins to the first flat wire pin, and to make the second vertical sections of the multiple second flat wire pins fit with the first vertical section of the first flat wire pin.
[0008] As a preferred embodiment of the present utility model, the clamping structure includes a first reverse notch formed on the first vertical section and a second reverse notch formed on the second horizontal section. The second reverse notch is formed at a position where the second horizontal section is close to the second vertical section. The first reverse notch and the second reverse notch are arranged opposite to each other, and the second flat wire pin and the first flat wire pin are clamped and fixed through the first reverse notch and the second reverse notch.
[0009] As a preferred embodiment of the present utility model, a plurality of the first reverse notches are equidistantly arranged along the length direction of the first vertical section, and the number of the first reverse notches is the same as the number of the second flat wire pins.
[0010] As a preferred embodiment of the present utility model, the second horizontal sections of the plurality of second flat wire pins are longitudinally arranged, and the distances from the second reverse notches on the plurality of second horizontal sections to the second vertical section gradually increase from bottom to top.
[0011] As a preferred embodiment of the present utility model, the depth of the first reverse notch is half of the width of the first vertical section, and the depth of the second reverse notch is half of the width of the second horizontal section.
[0012] As a preferred embodiment of the present utility model, the width of the first reverse notch is the same as the thickness of the second horizontal section, and the width of the second reverse notch is the same as the thickness of the first vertical section.
[0013] As a preferred embodiment of the present utility model, the connection part between the first reverse notch and the second reverse notch is subjected to soldering treatment.
[0014] 3. Beneficial effects
[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0016] (1) By providing a clamping structure between the first flat wire pin and the second flat wire pin, the present utility model can insert the first reverse notch on the first vertical section and the second reverse notch on the second horizontal section into each other, so as to clamp and fix the first vertical section and the second horizontal section. The second vertical section is closely attached to the first vertical section, avoiding the problem that the first flat wire pin and the second flat wire pin are easily pried open, which may cause an obstacle to passing through the holes pre-opened on the PCB board. There is no need to open large-sized holes on the PCB board, thereby improving the utilization rate of the PCB board.
[0017] (2) Since the connection part between the first reverse notch and the second reverse notch of the present utility model is subjected to soldering treatment, the cross-sectional area of the conduction path is complete, and the resistance value of the coil winding will not be affected. Description of the drawings
[0018] Figure 1Schematic diagram of the overall structure of the card-type pin structure;
[0019] Figure 2 Schematic diagram of the split structure of the first flat wire pin and the second flat wire pin.
[0020] In the figure: 1. The first flat wire pin; 11. The first horizontal section; 12. The first vertical section; 13. The first reverse notch; 2. The second flat wire pin; 21. The second horizontal section; 22. The second vertical section; 23. The second reverse notch. Detailed implementation mode
[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Embodiment
[0022] Please refer to Figure 1 and Figure 2 , this embodiment provides a card-type pin structure, including a transformer body installed on a PCB board. Multiple sets of pin structures are connected and led out on the transformer body. The pin structure includes a first flat wire pin 1 and multiple second flat wire pins 2. The first flat wire pin 1 and the second flat wire pins 2 are used to pass through holes pre-opened on the PCB board. The first flat wire pin 1 includes a first horizontal section 11 and a first vertical section 12. Each of the second flat wire pins 2 includes a second horizontal section 21 and a second vertical section 22. The first flat wire pin 1 and the second flat wire pins 2 are both L-shaped structures. A clamping structure is provided between the first flat wire pin 1 and the second flat wire pins 2. The clamping structure is used to connect and fix the multiple second flat wire pins 2 to the first flat wire pin 1, and make the second vertical sections 22 of the multiple second flat wire pins 2 fit with the first vertical section 12 of the first flat wire pin 1. The clamping structure is used to clamp and fix the first flat wire pin 1 and the second flat wire pins 2, and make the second vertical section 22 fit tightly with the first vertical section 12, reducing the gap between the second vertical section 22 and the first vertical section 12. When the first flat wire pin 1 and the second flat wire pins 2 pass through the holes pre-opened on the PCB board, it can prevent the second vertical section 22 from prying open with the first vertical section 12, eliminating the need to open large-sized holes on the PCB board, improving the utilization rate of the PCB board. In this embodiment, the parallel pins of the pin structure can be two, three, four, etc., which are designed according to the structure of the transformer body.
[0023] In this embodiment, the clamping structure includes a first reverse notch 13 formed in the first vertical section 12 and a second reverse notch 23 formed in the second horizontal section 21. The second reverse notch 23 is formed near the second vertical section 22 of the second horizontal section 21. The first reverse notch 13 and the second reverse notch 23 are arranged oppositely. The second flat wire pin 2 and the first flat wire pin 1 are clamped and fixed through the first reverse notch 13 and the second reverse notch 23. When fixing the first flat wire pin 1 and the second flat wire pin 2, the first reverse notch 13 on the first vertical section 12 is inserted into the second reverse notch 23 on the second horizontal section 21, so that the first vertical section 12 and the second horizontal section 21 can be clamped and fixed, improving the fixing effect of the first flat wire pin 1 and the second flat wire pin 2. The structure is simple, the operation is convenient, and it is easy to use.
[0024] In this embodiment, a plurality of first reverse notches 13 are equidistantly arranged along the length direction of the first vertical section 12. The number of the first reverse notches 13 is the same as the number of the second flat wire pins 2. The second horizontal sections 21 of the plurality of second flat wire pins 2 are arranged longitudinally, and the distances from the second reverse notches 23 on the plurality of second horizontal sections 21 to the second vertical section 22 gradually increase from bottom to top, which is convenient for the plurality of second flat wire pins 2 to be connected and fixed with the first flat wire pin 1, so that the first vertical section 12 of the first flat wire pin 1 is closely attached to the second vertical sections 22 of the plurality of second flat wire pins 2, reducing the gap therebetween, and helping to pass through the holes pre-opened on the PCB board.
[0025] In this embodiment, the depth of the first reverse notch 13 is half of the width of the first vertical section 12, and the depth of the second reverse notch 23 is half of the width of the second horizontal section 21. The width of the first reverse notch 13 is the same as the thickness of the second horizontal section 21, and the width of the second reverse notch 23 is the same as the thickness of the first vertical section 12. Through the size design of the first reverse notch 13 and the second reverse notch 23, the projections of the first flat wire pin 1 and the second flat wire pin 2 on the horizontal plane and the vertical plane are as close as possible, which can reduce the width deviation when the first flat wire pin 1 and the second flat wire pin 2 are clamped, and helps to better pass through the holes pre-opened on the PCB board.
[0026] In this embodiment, the connection part of the first reverse notch 13 and the second reverse notch 23 is treated with tinning to make the cross-sectional area of the conduction path complete and not affect the resistance value DCR of the coil winding.
[0027] Working principle: When installing the transformer body onto the PCB board, first insert the first reverse notch 13 on the first vertical section 12 into the second reverse notch 23 on the second horizontal section 21, so that the first vertical section 12 can be clamped and fixed to the second horizontal section 21, making the second vertical section 22 closely fit with the first vertical section 12. When connecting multiple second flat wire pins 2 to the first flat wire pin 1 in sequence through the above steps, the first vertical section 12 of the first flat wire pin 1 closely fits with the second vertical sections 22 of multiple second flat wire pins 2, reducing the gap therebetween. Then, tin the connection between the first reverse notch 13 and the second reverse notch 23, and then pass the second vertical section 22 and the first vertical section 12 through the holes pre-opened on the PCB board. The utility model can avoid the problem that when the transformer is installed on the PCB, the first flat wire pin 1 and the second flat wire pin 2 are easily pried open, which hinders passing through the holes pre-opened on the PCB board, and there is no need to open large-sized holes on the PCB board, improving the utilization rate of the PCB board.
[0028] All technical features in this embodiment can be freely combined according to actual needs.
[0029] The above embodiments are the preferred implementation schemes of the utility model. In addition, the utility model can also be implemented in other ways. Any obvious replacement without departing from the concept of the technical solution is within the protection scope of the utility model.
Claims
1. A cartridge pin structure, comprising a transformer body mounted on a PCB board, and a plurality of output pin structures are connected and led out on the transformer body, wherein: The outgoing pin structure includes a first flat wire pin (1) and a plurality of second flat wire pins (2). The first flat wire pin (1) includes a first horizontal section (11) and a first vertical section (12). Each of the second flat wire pins (2) includes a second horizontal section (21) and a second vertical section (22). A clamping structure is provided between the first flat wire pin (1) and the second flat wire pins (2). The clamping structure is used to connect and fix the plurality of second flat wire pins (2) to the first flat wire pin (1), and to fit the second vertical sections (22) of the plurality of second flat wire pins (2) to the first vertical section (12) of the first flat wire pin (1).
2. The cassette pin structure according to claim 1, wherein: The clamping structure includes a first reverse notch (13) formed on the first vertical section (12) and a second reverse notch (23) formed on the second horizontal section (21). The second reverse notch (23) is formed on the second horizontal section (21) near the second vertical section (22). The first reverse notch (13) and the second reverse notch (23) are arranged opposite to each other. The second flat wire pin (2) and the first flat wire pin (1) are clamped and fixed through the first reverse notch (13) and the second reverse notch (23).
3. The cassette pin structure according to claim 2, wherein: A plurality of the first reverse notches (13) are equidistantly arranged along the length direction of the first vertical section (12), and the number of the first reverse notches (13) is the same as the number of the second flat wire pins (2).
4. A cassette pin structure according to claim 3, characterized in that: The second horizontal sections (21) of the plurality of second flat wire pins (2) are arranged longitudinally, and the distances from the second reverse notches (23) on the plurality of second horizontal sections (21) to the second vertical section (22) gradually increase from bottom to top.
5. The cassette pin structure according to claim 2, wherein: The depth of the first reverse notch (13) is half of the width of the first vertical section (12), and the depth of the second reverse notch (23) is half of the width of the second horizontal section (21).
6. A cartridge pin structure according to claim 3, characterized in that: The width of the first reverse notch (13) is the same as the thickness of the second horizontal section (21), and the width of the second reverse notch (23) is the same as the thickness of the first vertical section (12).
7. A cartridge pin structure according to claim 4, wherein: The connection part of the first reverse notch (13) and the second reverse notch (23) is subjected to tinning treatment.