CN213025756U

CN213025756U - Transformer coil holder with reversely bent terminals

Info

Publication number: CN213025756U
Application number: CN202021681823.2U
Authority: CN
Inventors: 蔡景生
Original assignee: Dongguan Shoubang Electronics Co ltd
Current assignee: Dongguan Shoubang Electronics Co ltd
Priority date: 2020-08-13
Filing date: 2020-08-13
Publication date: 2021-04-20
Anticipated expiration: 2030-08-13

Abstract

The utility model discloses a transformer line frame that terminal was reversely bent, including winding portion and terminal microscope carrier, the left and right sides of terminal microscope carrier is equipped with the terminal, and the coil coiling is in winding portion, and the terminal microscope carrier is located winding portion's bottom, and winding portion is located between the terminal of terminal microscope carrier left and right sides, and left side terminal, the right side terminal of terminal microscope carrier are reversely bent, let lie in the coiling machine. Compared with the prior art, the structural design of line frame can increase the number of winding turns of miniature transformer line frame, this to promoting the performance of transformer to and the more useful department of miniaturized potential transformer utensil.

Description

Transformer coil holder with reversely bent terminals

Technical Field

The utility model relates to a transformer, concretely relates to electronic product's miniature transformer.

Background

A Transformer (Transformer) is a device that changes an alternating-current voltage by using the principle of electromagnetic induction, and main components are a primary coil, a secondary coil, and an iron core (magnetic core). A transformer applied to electronic products belongs to a small transformer. Such as transformers in televisions, displays. A primary coil and a secondary coil of the miniature transformer are wound on a coil frame, terminals are arranged on the coil frame, and outgoing lines of the primary coil and the secondary coil need to be connected with corresponding terminals.

SUMMERY OF THE UTILITY MODEL

The utility model solves the technical problem that: and the number of winding turns of the coil holder of the miniature transformer is increased.

In order to solve the technical problem, the utility model provides a following technical scheme: the transformer coil holder with the reversely bent terminals comprises a winding part and terminal carrying platforms, the terminals are arranged on the left side and the right side of the terminal carrying platforms, coils are wound on the winding part, the terminal carrying platforms are located at the bottoms of the winding part, the winding part is located between the terminals on the left side and the right side of the terminal carrying platforms, and the left terminals and the right terminals of the terminal carrying platforms are reversely bent to be located in the winding machine.

According to the technical scheme, the terminal carrying platform is located at the bottom of the winding part, the winding part is located between the terminals on the left side and the right side of the terminal carrying platform, the left terminal and the right terminal of the terminal carrying platform are bent reversely, the purpose of yielding to the winding machine can be achieved only by combining the three technical characteristics, and the winding machine can wind more coils on the winding part.

The left and right terminals of the terminal carrier are bent in opposite directions with respect to the terminal bending direction after the transformer is molded.

Compared with the prior art, the structural design of line frame can increase the number of winding turns of miniature transformer line frame, this to promoting the performance of transformer to and the more useful department of miniaturized potential transformer utensil.

Drawings

The invention will be further explained with reference to the drawings:

fig. 1 is a schematic view of a transformer bobbin according to the present invention, in which a terminal is bent forward by 90 degrees;

fig. 2 is a schematic view of a transformer bobbin with terminals bent in opposite directions.

The symbols in the drawings illustrate that:

10. a wire winding portion; 11. an iron core hole;

20. a terminal carrier; 21. a left terminal; 22. a right-side terminal;

30. a positioning structure; 31. a coil limiting part; 32. an iron core positioning part; 33. opening the gap; 34. a concave structure; 340. and (4) an arc-shaped structure.

Detailed Description

With reference to fig. 1 and 2, the transformer bobbin with the reversely bent terminals includes a winding portion 10 and a terminal carrier 20, the terminals are disposed on the left and right sides of the terminal carrier, a coil is wound on the winding portion, the terminal carrier is disposed at the bottom of the winding portion, the winding portion is disposed between the terminals on the left and right sides of the terminal carrier, and a left terminal 21 and a right terminal 22 of the terminal carrier are reversely bent to be disposed on the winding machine.

An actual operator fixes the wire frame by the tool, the wire is wound on the winding machine, the winding machine can do circular motion around the wire frame and can linearly move, and therefore the wire can be wound on the winding part 10 in sequence by the winding machine. Since the left and

right terminals

21 and 22 of the terminal carrier are bent in opposite directions, the linear displacement of the winding machine is increased compared to the prior art, and the coil can be wound on the portion of the winding portion 10 close to the terminal carrier 20, so that the number of coils on the winding portion 10 is increased.

Alternatively, the left and

right terminals

21 and 22 of the terminal carrier 20 are bent in opposite directions by 15 degrees. Because the left terminal 21 and the right terminal 22 need to be bent by 90 degrees in the forward direction after the winding machine completes winding, the angle at which the left terminal and the right terminal are bent in the reverse direction is not too large, and the terminals are prevented from being broken.

The top of the winding part 10 is provided with a positioning structure 30, the positioning structure is provided with a coil limiting part 31 and an iron core positioning part 32, the positioning structure is bent, and the middle position of the positioning structure is provided with a notch 33. The coil limiting part is used for limiting the coil on the winding part 10 and limiting the coil. According to the prior art, the iron core is formed by splicing two E-shaped iron core pieces, and the iron core is in a shape of a day. The iron core positioning part is used for positioning the iron core piece, and the iron core is accurately matched with the wire frame. In order to stabilize the fitting, the core member and the bobbin are fitted closely, and the core member presses the core positioning portion 32 of the bobbin, which deforms. Because the whole positioning structure is bent, the bent iron core positioning part is bent according to the bending direction, the notch 33 provides convenience for the bending, and meanwhile, the deformation of the iron core positioning part is absorbed by the notch, so that the smooth matching of the iron core piece and the wire frame is ensured. The utility model discloses spacing portion 31 of coil and iron core location portion 32 integration are for a location structure 30, have also reached the purpose of retrenching in structural design.

The number of the positioning structures 30 is two, the positioning structures are distributed on the left side and the right side of the top of the winding part 10, the coil limiting part of the left positioning structure extends towards the left side, the edge of the winding part protrudes, and the purpose of limiting the coil is achieved. The coil limiting part of the right positioning structure extends to the right side and also protrudes out of the edge of the winding part, so that the purpose of limiting the coil is achieved. The iron core positioning part of the left positioning structure and the iron core positioning part of the right positioning structure extend towards the upper part of the wire frame; the opening of the left side positioning structure is arranged at the middle position of the coil limiting part of the left side positioning structure, and the opening of the right side positioning structure is arranged at the middle position of the coil limiting part of the right side positioning structure. The core member is fitted between the left-hand positioning structure and the right-hand positioning structure and penetrates into the core hole 11 of the winding portion. One iron core piece is matched with the wire frame from the top of the wire frame downwards, the other iron core piece is matched with the wire frame from the bottom of the wire frame upwards, and the two iron core pieces are spliced into an iron core.

A concave structure 34 is arranged at the position of the notch 33 of any positioning structure, an iron core hole 11 is arranged at the center of the winding part 10, and an arc-shaped structure 340 matched with the iron core hole is arranged on the back of the concave structure. The middle part of the E-shaped iron core piece is matched with the iron core hole 11 and is cylindrical. The middle part of the E-shaped iron core piece is tightly matched with the back surface of the concave structure 34, the back surface of the concave structure 34 is extruded, and the concave structure can allow and absorb the deformation generated by the extrusion, so that the condition is provided for the smooth matching of the iron core piece and the wire frame.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims

1. The transformer line frame that the terminal was bent in reverse includes wire winding portion (10) and terminal microscope carrier (20), and the left and right sides of terminal microscope carrier is equipped with the terminal, and the coil coiling is on wire winding portion, its characterized in that: the terminal carrying platform is positioned at the bottom of the winding part, the winding part is positioned between the terminals on the left side and the right side of the terminal carrying platform, and a left terminal (21) and a right terminal (22) of the terminal carrying platform are bent reversely to be positioned in the winding machine.

2. The terminal reverse-bending transformer bobbin of claim 1, wherein: the left terminal (21) and the right terminal (22) of the terminal carrier (20) are reversely bent by 15 degrees.

3. The terminal reverse-bending transformer bobbin of claim 1, wherein: the top of the winding part (10) is provided with a positioning structure (30) which is provided with a coil limiting part (31) and an iron core positioning part (32), the positioning structure is bent, and the middle position of the positioning structure is provided with a notch (33).

4. The terminal reverse-bending transformer bobbin of claim 3, wherein: the number of the positioning structures (30) is two, the positioning structures are distributed on the left side and the right side of the top of the winding part (10), the coil limiting part of the left positioning structure extends towards the left side, and the coil limiting part of the right positioning structure extends towards the right side; the iron core positioning part of the left positioning structure and the iron core positioning part of the right positioning structure extend upwards; the opening of the left side positioning structure is arranged at the middle position of the coil limiting part of the left side positioning structure, and the opening of the right side positioning structure is arranged at the middle position of the coil limiting part of the right side positioning structure.

5. The terminal reverse-bending transformer bobbin of claim 4, wherein: a concave structure (34) is arranged at the position of a notch (33) of any positioning structure, an iron core hole (11) is formed in the center of the winding part (10), and an arc-shaped structure (340) matched with the iron core hole is arranged on the back of the concave structure.