SMD transformer coil framework

Abstract

The utility model relates to an SMD transformer coil framework which comprises a winding reel, baffles are arranged at the two ends of the winding reel respectively, wiring blocks are arranged at the lower ends of the baffles respectively, and reinforcing ribs are arranged at the connecting positions of the wiring blocks and the winding reel. A plurality of wiring grooves are uniformly distributed on the lower surface of the wiring block, a plurality of jacks are uniformly distributed on the outer side of the wiring block, one ends of the pins are inserted into the jacks, the other ends of the pins are provided with foot plates which are bent downwards and outwards, and the lower surfaces of the foot plates are lower than the lower surface of the wiring block. According to the utility model, the structure is firm, the connection strength between the baffle plate and the wiring block is improved by the reinforcing ribs, cracking, fracture and other conditions are not generated in the winding process, the rejection rate is reduced, and automatic production is facilitated; the pins and the wiring blocks are inserted, and the distribution arrangement mode of the pins can be adjusted according to the use condition; the wiring groove is convenient for leading a coil lead to a pin; the device is simple in structure, and reliable, safe and stable operation of the device in the circuit is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of electronic components and relates to an SMD transformer coil frame. Background Art

[0002] As a commonly used surface mount device, SMD transformer has various advantages such as small size and light weight. However, its coil skeleton, as the main load-bearing component, has the problem of weak joints and easy breakage. In addition, the conventional coil skeleton and pins are integrally cast and molded, and the pin position cannot be flexibly changed. Summary of the invention

[0003] The utility model aims to overcome the deficiencies in the prior art, solve the problems that the connection of the SMD transformer coil skeleton is weak and easy to break, and the pins cannot be flexibly changed in position, and provide an SMD transformer coil skeleton.

[0004] In order to achieve the above purpose, the following technical solutions are adopted:

[0005] The SMD transformer coil skeleton comprises a winding drum, a terminal block and a pin, wherein baffles are respectively arranged at both ends of the winding drum, terminal blocks are respectively arranged at the lower ends of the baffles, and reinforcing ribs are arranged at the connection between the terminal block and the winding drum; a plurality of terminal grooves are evenly distributed below the terminal block, a plurality of jacks are evenly distributed outside the terminal block, one end of the pin is inserted into the jack, and a foot plate bent downward and outward is arranged at the other end of the pin, and the lower surface height of the foot plate is lower than the lower surface of the terminal block.

[0006] Preferably, the winding drum and the terminal block are integrally formed and made of insulating material.

[0007] Preferably, the end of the wiring slot close to the winding drum is rounded; the upper top surface of the wiring slot is provided with an inclined surface inclined toward the winding drum, and a smooth transition is adopted at the transition between the inclined surface and the upper top surface.

[0008] Preferably, the inner side surface of the wiring block and the inner side surface of the baffle are located in the same plane.

[0009] Compared with the prior art, the utility model has the following advantages:

[0010] The utility model has a firm structure, and the reinforcing ribs improve the connection strength between the baffle and the wiring block. Cracking and breaking will not occur during the winding process, which reduces the scrap rate and facilitates automated production. The pins and the wiring block are inserted in an insertion manner, and the distribution and arrangement of the pins can be adjusted according to the usage conditions. The wiring groove facilitates the lead wires of the coil to be led out to the pins. The utility model has a simple structure, which ensures the reliable, safe and stable operation of the device in the circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0012] Figure 2 It is a three-dimensional structural schematic diagram of the utility model.

[0013] In the figure: 1. winding drum; 2. terminal block; 3. pin; 4. baffle; 5. reinforcing rib; 6. terminal slot; 7. socket; 8. foot plate; 9. upper top surface; 10. inclined surface. DETAILED DESCRIPTION

[0014] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0015] like Figure 1-Figure 2 As shown, an SMD transformer coil skeleton comprises a bobbin 1, a terminal block 2 and a pin 3, baffles 4 are respectively provided at both ends of the bobbin 1, the coil winding is wound on the bobbin 1, and the baffles 4 limit the positions of the two ends of the winding;

[0016] The lower ends of the baffles 4 are provided with junction blocks 2, and the junction blocks 2 and the winding drum 1 are connected with reinforcing ribs 5, which improve the connection strength between the baffles 4 and the junction blocks 2, and can prevent the skeleton from breaking during use;

[0017] The terminal block 2 is used to lead out the winding wiring and distribute it to the pin 3;

[0018] A plurality of wiring slots 6 are evenly distributed under the wiring block 2, and a plurality of jacks 7 are evenly distributed outside the wiring block 2. One end of the pin 3 is inserted into the jack 7. The pin 3 can be inserted into different jacks 7 to adjust the distribution arrangement of the pin 3 and is suitable for different circuit boards.

[0019] The other end of the pin 3 is provided with a foot plate 8 bent downward and outward, and the lower surface of the foot plate 8 is lower than the lower surface of the wiring block 2, so that the foot plate 8 is easy to match with the circuit board.

[0020] Furthermore, the winding drum 1 and the terminal block 2 are integrally formed and made of insulating material.

[0021] Furthermore, the end of the wiring groove 6 close to the winding drum 1 is rounded; the upper top surface 9 of the wiring groove 6 is provided with an inclined surface 10 inclined toward the winding drum 1, and a smooth transition is adopted at the transition between the inclined surface 10 and the upper top surface 9. During the wiring process, the coil winding is led out through the wiring groove 6 and wound around the pin 3. The transition of the wiring groove 6 through which it passes is a smooth surface, which will not cut the winding surface.

[0022] Furthermore, the inner side surface of the junction block 2 and the inner side surface of the baffle 4 are located in the same plane, and no interference occurs when the coil is wound.

[0023] Working principle: The utility model sets reinforcing ribs 5 between the baffle plate 4 and the terminal block 2 to improve the overall strength of the skeleton, avoid the skeleton from breaking between the baffle plate 4 and the terminal block 2 during the winding process, and improve the yield rate; the pins 3 are inserted into the sockets 7, and the arrangement of the pins 3 can be flexibly changed. When some customers use it in small batches or as a single DIY, the pin positions can be changed according to needs; the bending transitions in the wiring slot 6 are rounded and will not cut the winding surface, thereby ensuring the reliable, safe and stable operation of the device in the circuit.

[0024] It is understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, but the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A SMD transformer coil skeleton, comprising a winding bobbin (1), a terminal block (2) and a pin (3), wherein: Baffles (4) are respectively provided at both ends of the winding drum (1), and wiring blocks (2) are respectively provided at the lower ends of the baffles (4), and reinforcing ribs (5) are provided at the connection between the wiring block (2) and the winding drum (1); a plurality of wiring grooves (6) are evenly distributed below the wiring block (2), and a plurality of plug holes (7) are evenly distributed outside the wiring block (2); one end of the pin (3) is inserted into the plug hole (7), and the other end of the pin (3) is provided with a foot plate (8) bent downward and outward, and the lower surface of the foot plate (8) is lower than the lower surface of the wiring block (2).

2. The SMD transformer coil skeleton according to claim 1, characterized in that: The winding drum (1) and the terminal block (2) are integrally formed and made of insulating material.

3. The SMD transformer coil skeleton according to claim 1, characterized in that: The end of the wiring groove (6) close to the winding drum (1) is rounded; the upper top surface (9) of the wiring groove (6) is provided with an inclined surface (10) inclined toward the winding drum (1), and a smooth transition is adopted at the transition between the inclined surface (10) and the upper top surface (9).

4. The SMD transformer coil skeleton according to claim 1, characterized in that: The inner side surface of the wiring block (2) and the inner side surface of the baffle (4) are located on the same plane.

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