Variable pin ring transformer

Abstract

The utility model relates to electronic components technical field especially relates to a variable pin's toroidal transformer, include: pedestal, its periphery side distribution has a plurality of mounting holes, pin seat, insert and fix in mounting hole on, coil, place in the pedestal on, and its lead end winding in pin seat, upper cover, set up in the pedestal top and cover coil, the utility model discloses toroidal transformer sets up a plurality of mounting holes at the periphery side of pedestal, and pin seat can be according to the need of customer and plug into the corresponding mounting hole, to design into the product of corresponding pin spacing, realize pin spacing flexible adjustment, satisfy the design demand of customer diversification, and this design does not need to redesign and produce mould for different pin spacing demand, reduced production cost and period.

Description

Technical Field

[0001] This utility model relates to the field of electronic components technology, and in particular to a toroidal transformer with variable pin positions. Background Technology

[0002] Toroidal transformers, as a common electronic component, are widely used in various electronic devices. Traditional toroidal transformers typically employ a through-hole pin design. This design is prone to pin errors, leading to malfunctions or failures. Furthermore, pin alignment is required before soldering and assembly, resulting in low efficiency. Currently, a small number of surface-mount (SMT) designs still exist in the market, but these all have fixed pin spacing. When meeting different customer needs, mold design and production often require redesign and manufacturing, leading to increased production costs and extended production cycles. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a toroidal transformer with variable pin positions, comprising:

[0004] The base has several mounting holes distributed around its perimeter;

[0005] The pin socket is inserted and fixed into the mounting hole;

[0006] A coil is placed on the base, and its lead ends are wound around the pin socket;

[0007] The top cover is positioned above the base and covers the coil.

[0008] In some possible embodiments, the base is rectangular, the mounting holes are distributed around the base, and the spacing between two adjacent mounting holes on the same side of the base is equal.

[0009] In some possible embodiments, one end of the pin holder is fixed to the mounting hole by an interference fit or adhesive bonding.

[0010] In some possible embodiments, the outer surface of the pin holder is formed with a groove for winding the lead end, and the lower surface of the pin holder is flush with the lower end face of the base.

[0011] In some possible embodiments, each of the four corners of the base has a limiting post protruding, and the coil is placed in the area between the four limiting posts on the base.

[0012] In some possible embodiments, the inner side of the limiting post is concave arc-shaped, and the upper end of the limiting post is provided with an inclined guide surface.

[0013] In some possible embodiments, the base has a socket in the middle, and the top cover is connected to a plug plate, which can be inserted and fixed into the socket.

[0014] Compared with the prior art, the advantages of this utility model are as follows: The toroidal transformer of this utility model has several mounting holes on the periphery of the base. The pin holder can be inserted into the corresponding mounting hole according to the customer's needs to design a product with a corresponding pin pitch, realize flexible adjustment of pin pitch and meet the diverse design needs of customers; and this design does not require redesigning and producing molds for different pin pitch requirements, which reduces production costs and cycle. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A three-dimensional structural diagram of a toroidal transformer provided in an embodiment of this utility model;

[0017] Figure 2 A three-dimensional assembly drawing of a toroidal transformer provided for an embodiment of this utility model;

[0018] Figure 3 A cross-sectional view of the toroidal transformer provided in an embodiment of this utility model.

[0019] Reference numerals: base 1, mounting hole 11, limiting post 12, inclined guide surface 121, insertion hole 13, pin seat 2, groove 21, coil 3, top cover 4, insertion plate 41. Detailed Implementation

[0020] 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.

[0021] Reference Figures 1 to 3 The toroidal transformer with variable pin position shown includes a base 1, a pin socket 2, a coil 3 and a top cover 4. The base 1, pin socket 2 and top cover 4 can be integrally molded from phenolic resin. The coil 3 is obtained by winding polyurethane enameled wire around a toroidal ferrite core. The two ends of the polyurethane enameled copper wire serve as the lead ends of the coil 3 and can be wound on the pin socket 2.

[0022] The base 1 is rectangular, and several mounting holes 11 are distributed around its perimeter. The mounting holes 11 are located around the base 1, and the spacing between adjacent mounting holes 11 on the same side is equal. This embodiment describes the base 1 with five equally spaced mounting holes 11 on each side. The lead holder 2 is inserted and fixed into the mounting holes 11. Specifically, one end of the lead holder 2 is fixed by an interference fit between the hole and shaft or by adhesive bonding, ensuring a firm and stable installation. Furthermore, the outer surface of the lead holder 2 forms a groove 21 for winding the lead end of the coil 3, facilitating the winding of the lead end onto the lead holder 2. Even further, the lower surface of the lead holder 2 is flush with the lower end surface of the base 1, ensuring that the transformer can be placed stably on the workbench when the lead end is not wound.

[0023] Each of the four corners of the upper surface of the base 1 has a limiting post 12 protruding from it. The coil 3 is placed on the base 1, specifically in the area between the four corner limiting posts 12. The inner surface of the limiting post 12 is concave arc-shaped, and the upper end has an inclined guide surface 121 to facilitate the placement and positioning of the coil 3. The lead end of the coil 3 is wound in the groove 21 of the lead holder 2 to fix the coil 3 to the base 1. The thickness of the lead end should be greater than the depth of the groove 21 to ensure that the lead end can protrude from the bottom of the base 1 after winding, which facilitates subsequent SMT placement operations.

[0024] The top cover 4 is positioned above the base 1 and covers the coil 3. It is connected to a plug plate 41, which can be plugged into and fixed to the plug hole 13 in the middle of the base 1, so as to realize the quick installation and fixation of the top cover 4 and the base 1. At the same time, it can also serve as an insulating partition for the two windings on the coil 3, improving the safety and reliability of the product.

[0025] In practical applications, the mounting position of the pin header 2 on the base 1 can be adjusted according to customer needs, allowing for flexible changes in pin pitch. For example, when a smaller pin pitch is required, adjacent mounting holes 11 can be used to insert the pin header 2; when a larger pin pitch is required, spaced mounting holes 11 can be used to insert the pin header 2. This design enables the transformer to adapt to different circuit board layouts, improving versatility and flexibility.

[0026] This utility model's variable pin configuration toroidal transformer, through its plug-in pin socket design, allows for flexible adjustment of pin spacing according to customer needs, and has the following main advantages:

[0027] 1. High flexibility: The pin socket can be installed in different positions according to customer needs, so as to flexibly adjust the pin pitch and meet diverse design requirements.

[0028] 2. Low cost: No need to redesign and produce molds for different pin pitch requirements, reducing production costs and cycle time.

[0029] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A toroidal transformer with variable pin positions, characterized in that, include: The base (1) has several mounting holes (11) distributed around its periphery; The pin socket (2) is inserted and fixed into the mounting hole (11); A coil (3) is placed on the base (1), and its lead end is wound around the pin holder (2); The top cover (4) is positioned above the base (1) and covers the coil (3).

2. A toroidal transformer with variable pin positions according to claim 1, characterized in that, The base (1) is rectangular, and the mounting holes (11) are distributed around the base (1), and the spacing between two adjacent mounting holes (11) on the same side of the base (1) is equal.

3. A toroidal transformer with variable pin positions according to claim 2, characterized in that, One end of the pin holder (2) is fixed to the mounting hole (11) by interference fit or glue.

4. A toroidal transformer with variable pin positions according to claim 1, characterized in that, The outer side of the pin holder (2) forms a groove (21) for winding the lead end, and the lower side of the pin holder (2) is flush with the lower end face of the base (1).

5. A toroidal transformer with variable pin positions according to claim 1, characterized in that, The base (1) has four corner protrusions of limit posts (12), and the coil (3) is placed in the area between the four limit posts (12) on the base (1).

6. A toroidal transformer with variable pin positions according to claim 5, characterized in that, The inner side of the limiting post (12) is concave arc-shaped, and the upper end of the limiting post (12) is provided with an inclined guide surface (121).

7. A toroidal transformer with variable pin positions according to claim 1, characterized in that, The base (1) has an insertion hole (13) in the middle, and the upper cover (4) is connected to an insertion plate (41), which can be inserted and fixed into the insertion hole (13).

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