CN212648039U

CN212648039U - Compact transformer

Info

Publication number: CN212648039U
Application number: CN202021682633.2U
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: 2021-03-02
Anticipated expiration: 2030-08-13

Abstract

The utility model discloses a compact transformer with a simplified structure, which comprises an iron core, a wire frame and a coil, wherein the wire frame is provided with a winding structure and a terminal, the winding structure only winds a primary coil or a secondary coil, and the primary coil or the secondary coil wound on the winding structure is connected with the terminal; the line frame is equipped with inserts the PIN structure, inserts the side that the PIN structure is located the wire winding structure, inserts and is equipped with U-shaped PIN in inserting the PIN structure, and U-shaped PIN acts as primary coil or secondary coil. Miniature transformer, the structure is retrencied, the manufacture craft also obtains simplifying, moreover, the wire winding structure diminishes, the line frame also diminishes, does benefit to the miniaturization of transformer.

Description

Compact transformer

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 its main components are a primary coil (primary coil), a secondary coil (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.

According to the prior art, a primary coil and a secondary coil of a miniature transformer are wound on a bobbin, terminals are arranged on the bobbin, 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: a novel small transformer is designed, the structure of the small and medium-sized transformer in the prior art can be simplified, and the process for manufacturing the small transformer is also disclosed.

In order to solve the technical problem, the utility model provides a following technical scheme: the compact transformer with a simplified structure comprises an iron core, a wire frame and a coil, wherein the wire frame is provided with a winding structure and a terminal, the winding structure only winds a primary coil or a secondary coil, and the primary coil or the secondary coil wound on the winding structure is connected with the terminal; the line frame is equipped with inserts the PIN structure, inserts the side that the PIN structure is located the wire winding structure, inserts and is equipped with U-shaped PIN in inserting the PIN structure, and U-shaped PIN acts as primary coil or secondary coil.

Miniature transformer need not coiling primary coil and secondary coil in wire winding structure, as long as coiling primary coil or secondary coil in wire winding structure, another coil is acted as by U-shaped PIN, and U-shaped PIN directly inserts and establish and insert the PIN structure in, consequently, miniature transformer, the structure is retrencied, the preparation technology also obtains simplifying, moreover, wire winding structure diminishes, the line frame also diminishes, does benefit to the miniaturization of transformer.

Drawings

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

FIG. 1 is a top view of a compact miniature transformer;

FIG. 2 is a left side view of a compact miniature transformer;

FIG. 3 is a front view of a compact miniature transformer;

FIG. 4 is a right side view of a compact miniature transformer;

fig. 5 is a bottom view of a compact miniature transformer.

The symbols in the drawings illustrate that:

10. a wire frame; 11. a winding structure; 12. a terminal; 13. inserting a PIN structure; 131. a top groove; 132. a bottom groove; 133. inserting a PIN hole; 14. a lead slot; 15. an edge structure; 16. a convex portion; 17. an iron core hole;

20. a U-shaped PIN; 21. a PIN.

Detailed Description

With reference to fig. 1 to 5, a compact transformer includes an iron core, a bobbin 10 and a coil, the bobbin is provided with a winding structure 11 and a terminal 12, the winding structure only winds a primary coil or a secondary coil, and the primary coil or the secondary coil wound on the winding structure is connected with the terminal; the line frame is equipped with inserts PIN structure 13, inserts the side that PIN structure is located the wire winding structure, inserts and is equipped with U-shaped PIN20 in inserting the PIN structure, and U-shaped PIN acts as primary coil or secondary coil.

Alternatively, the winding structure 11 winds only the secondary coil, and the U-shaped PIN corresponds to the primary coil of the transformer. Among them, a pair of PIN legs of the U-shaped PIN corresponds to a terminal connected to the primary coil in the related art.

The PIN inserting structure 13 comprises a top groove 131 arranged at the top of the line frame 10, a pair of bottom grooves 132 arranged at the bottom of the line frame, and a pair of PIN inserting holes 133 communicated with the top groove and the pair of bottom grooves, wherein a pair of PIN feet 21 of the U-shaped PIN are inserted into the pair of PIN inserting holes from the top groove and then penetrate into the pair of bottom grooves, and the pair of PIN feet protrude out of the line frame downwards. The design of the PIN insertion structure 13 provides a facility for the U-shaped PIN insertion bobbin 10. All pack in top groove and the kerve and have the filler, the filler in the top groove can restrict U-shaped PIN and rise, and the filler in the kerve can be for a pair of PIN foot horizontal hunting provide the condition, because corresponding electronic device pegs graft on a pair of PIN foot and the circuit board, at the plug in-process, horizontal hunting about a pair of PIN foot can.

Alternatively, the top groove 131 is filled with a plastic seal, i.e., a plastic member, which is fixed in the top groove by glue, and the bottom groove 132 is filled with glue.

The pair of terminals 12 is parallel to the pair of PIN legs 21, the pair of terminals is located on the left side of the winding structure 11, the pair of PIN legs is located on the right side of the winding structure, and the pair of terminals also protrudes downwards out of the bobbin 10, so that the transformer and the electronic devices on the circuit board can be conveniently and directly plugged.

The wire frame 10 is provided with a lead slot 14, and the lead wire of the coil on the winding structure 11 passes through the lead slot and then is connected with the corresponding terminal 12. The number of the lead slots is a pair, two lead wires of the secondary coil are connected with the pair of terminals one by one, and the two lead wires respectively pass through the pair of lead slots. The lead groove not only prevents two lead wires from touching or crossing, but also enables the lead wires to be hidden in the wire frame 10, which is advantageous for the protection of the lead wires and the neatness of the appearance of the transformer.

The pair of lead slots 14 is formed by a pair of edge structures 15 and a protrusion 16, the pair of edge structures being located on either side of the protrusion, wherein one edge structure forms one lead slot with the protrusion and the other edge structure forms the other lead slot with the protrusion.

The iron core is composed of two E-shaped iron core pieces, after the secondary coil is wound and the U-shaped PIN is inserted in place, the two E-shaped iron core pieces are respectively folded towards the direction of the coil frame from the left side and the right side of the coil frame 10 and finally spliced together, wherein the middle structure of each E-shaped iron core piece is spliced in the iron core hole 17 of the coil frame 10. The two core pieces spliced together are wound and fixed by the adhesive tape.

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 miniature transformer that the structure retrencied includes iron core, line frame (10) and coil, and the line frame is equipped with winding structure (11) and terminal (12), its characterized in that: the winding structure is only wound with a primary coil or a secondary coil, and the primary coil or the secondary coil wound on the winding structure is connected with the terminal; the line frame is equipped with inserts PIN structure (13), inserts the side that PIN structure is located the wire winding structure, inserts and is equipped with U-shaped PIN (20) in inserting the PIN structure, and U-shaped PIN acts as primary coil or secondary coil.

2. The reduced architecture miniature transformer of claim 1, wherein: the PIN inserting structure (13) comprises a top groove (131) arranged at the top of the line frame (10), a pair of bottom grooves (132) arranged at the bottom of the line frame, and a pair of PIN inserting holes communicated with the top groove and the pair of bottom grooves, wherein a pair of PIN PINs (21) of the U-shaped PIN are inserted into the pair of PIN inserting holes from the top groove and then go deep into the pair of bottom grooves, and the pair of PIN PINs protrude out of the line frame downwards; the top groove and the bottom groove are both filled with fillers.

3. The reduced architecture miniature transformer of claim 2, wherein: the top groove (131) is filled with a plastic sealing piece, the plastic sealing piece is fixed in the top groove through glue, and the bottom groove (132) is filled with glue.

4. The reduced architecture miniature transformer of claim 2, wherein: the pair of terminals (12) are parallel to the pair of PIN legs (21), the pair of terminals are located on the left side of the winding structure (11), and the pair of PIN legs are located on the right side of the winding structure.

5. The reduced architecture miniature transformer of claim 4, wherein: the wire frame (10) is provided with a lead slot (14), and the lead wire of the coil on the winding structure (11) passes through the lead slot and then is connected with the corresponding terminal (12).

6. The reduced architecture miniature transformer of claim 5, wherein: the pair of lead grooves (14) is formed by a pair of edge structures (15) and a projection (16), the pair of edge structures being located on either side of the projection.