Return transformer

Abstract

The utility model discloses a return stroke transformer which comprises a first magnetic core, a second magnetic core, a first framework, a second framework, a first coil winding and a second coil winding, a first magnetic core column and a second magnetic core column are arranged at the two ends of the first magnetic core and the two ends of the second magnetic core in a protruding mode respectively, and the second magnetic core is arranged at the upper end of the first magnetic core in a covering mode. The first framework is of a cylindrical structure, the second framework is of a cuboid structure, a first through hole and a second through hole which are matched with the first magnetic core column and the second magnetic core column are formed in the upper end of the first framework and the upper end of the second framework in a concave mode, the first magnetic core column is embedded in the first through hole, and the second magnetic core column is embedded in the second through hole. The first coil winding is wound on the first framework, and the second coil winding is wound on the second framework. According to the technical scheme, the transformer can be assembled and disassembled more conveniently and rapidly, the assembling efficiency of the transformer is improved, disassembly, overhaul and maintenance are convenient, and practicability is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to transformer technical field especially relates to a reverse course transformer. BACKGROUND

[0002] The transformer is the device that utilizes electromagnetic induction's principle to change alternating voltage, main component is primary coil, secondary coil and core (magnetic core). Main function has: voltage transformation, current transformation, impedance transformation, isolation, voltage stabilizing (magnetic saturation transformer) etc.

[0003] The transformer can be divided into according to the use: distribution transformer, power transformer, full-sealed transformer, combined transformer, dry-type transformer, oil-immersed transformer, single-phase transformer, electric furnace transformer, rectifier transformer, electric reactor, anti-interference transformer, lightning protection transformer, box-type transformer test transformer, corner transformer, large current transformer, excitation transformer etc.

[0004] At present, the traditional coil transformer is mostly fixed the core through the way of adhesive tape binding in the assembling process, the operation is cumbersome, the efficiency is low, and it is inconvenient to assemble and maintain. UTILITY MODEL CONTENT

[0005] The utility model discloses a reverse course transformer, which aims to solve the technical problems of the existing coil transformer, such as cumbersome operation, low efficiency, and inconvenience in assembling and maintaining.

[0006] To achieve the above-mentioned purpose, the reverse course transformer provided by the utility model comprises a first magnetic core, a second magnetic core, a first skeleton, a second skeleton, a first coil winding and a second coil winding, the two ends of the first magnetic core and the second magnetic core are respectively provided with a first magnetic core column and a second magnetic core column, the cross section of the first magnetic core column is in a circular structure, the cross section of the second magnetic core column is in a rectangular structure, a second magnetic core cover is arranged on the upper end of the first magnetic core, and the lower end wall of the second magnetic core is in abutment with the upper end wall of the first magnetic core, the first skeleton is in a cylindrical structure, the second skeleton is in a rectangular structure, the upper ends of the first skeleton and the second skeleton are respectively recessed with a first through hole and a second through hole matched with the first magnetic core column and the second magnetic core column, the first magnetic core column is embedded in the first through hole, the second magnetic core column is embedded in the second through hole, the first coil winding is wound on the first skeleton, and the second coil winding is wound on the second skeleton.

[0007] Optionally, it further comprises an elastic clamping piece, the elastic clamping piece is in a U-shaped structure, and the lower end and the upper end of the elastic clamping piece are in abutment with the lower end wall of the first magnetic core and the upper end wall of the second magnetic core respectively.

[0008] Optionally, the lower end wall and the side wall of the first magnetic core and the upper end wall and the side wall of the second magnetic core are respectively concavely provided with a limiting groove, and the elastic clamping piece is embedded in the limiting groove.

[0009] Optionally, the side wall of the elastic clamping piece is provided in a concave circular arc structure, and the side wall of the elastic clamping piece abuts against the inner bottom wall of the limiting groove.

[0010] Optionally, the inner side walls of the first magnetic core and the second magnetic core abut against the two end walls of the first skeleton and the second skeleton.

[0011] Optionally, the first skeleton is provided with a plurality of limiting flanges in the height direction, and the first coil winding is wound between two adjacent limiting flanges.

[0012] Optionally, the first magnetic core and the second magnetic core are both formed of Mn-Zn soft magnetic ferrite material.

[0013] Optionally, the first skeleton and the second skeleton are both formed of bakelite or flame-retardant nylon or flame-retardant PET plastic or flame-retardant PBT plastic or liquid crystal polymer material.

[0014] The technical scheme of the utility model has the following beneficial effects: the utility model discloses the technical scheme, through the two ends of first magnetic core and second magnetic core respectively convexly provided with a first magnetic core column and second magnetic core column, the cross section of first magnetic core column is provided in a circular structure, the cross section of second magnetic core column is provided in a rectangular structure, second magnetic core cover is arranged at the upper end of first magnetic core, and the lower end wall of second magnetic core column abuts against the upper end wall of first magnetic core column, first skeleton is provided in a cylindrical structure, second skeleton is provided in a cuboid structure, the upper end of first skeleton and second skeleton is concavely provided with first through hole and second through hole matched with first magnetic core column and second magnetic core column, first magnetic core column is embedded in first through hole respectively, second magnetic core column is embedded in second through hole respectively, first coil winding is wound on first skeleton, and second coil winding is wound on second skeleton, so that the assembly and disassembly of transformer are more convenient and fast, the assembly efficiency of transformer is improved, and the utility model discloses a color TV flyback transformer, neon lamp power supply and LED lamp power supply. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to the structure shown in the drawings without creating labor.

[0016] Fig. 1It is an overall structure schematic view of a reverse transformer according to an embodiment of the present utility model.

[0017] Fig. 2 It is an overall structure schematic view of a reverse transformer according to an embodiment of the present utility model.

[0018] Fig. 3 It is an overall structure schematic view of a reverse transformer according to an embodiment of the present utility model.

[0019] Fig. 4 It is an overall structure schematic view of a reverse transformer according to an embodiment of the present utility model.

[0020] The realization, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings in combination with embodiments. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present utility model.

[0022] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present utility model are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.

[0023] In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization by those skilled in the art, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0024] The present utility model provides a reverse transformer.

[0025] For example, Figs. 1 to 4As shown in the utility model one embodiment, this inverse transformer, including first magnetic core 101, second magnetic core 102, first skeleton 103, second skeleton 104, first coil winding 105 and second coil winding 106, both ends of first magnetic core 101 and second magnetic core 102 are provided with a first magnetic core column 107 and second magnetic core column 108 respectively, the cross section of first magnetic core column 107 is round structure setting, the cross section of second magnetic core column 108 is rectangular structure setting, second magnetic core 102 is covered on the upper end of first magnetic core 101, and the lower end wall of second magnetic core 102 is in contact with the upper end wall of first magnetic core 101, the design of closed annular magnetic core does not leak magnetic, improves the efficiency of transformer, first skeleton 103 is cylindrical structure setting, second skeleton 104 is rectangular structure setting, the upper end of first skeleton 103 and second skeleton 104 is recessed with the first through hole 1031 and the second through hole 1041 respectively matched with first magnetic core column 107 and second magnetic core column 108, first magnetic core column 107 is embedded in first through hole 1031 respectively, second magnetic core column 108 is embedded in second through hole 1041 respectively, first coil winding 105 is wound on first skeleton 103, and second coil winding 106 is wound on second skeleton 104.

[0026] Specifically, it further includes an elastic clamping piece (not shown), which is arranged in a U-shaped structure, and the lower end and the upper end of the elastic clamping piece are in contact with the lower end wall of the first magnetic core 101 and the upper end wall of the second magnetic core 102 respectively. Through the elastic clamping piece, the assembly and disassembly of the transformer are more convenient and fast, and maintenance is facilitated.

[0027] Specifically, the lower end wall and the side wall of the first magnetic core 101 and the upper end wall and the side wall of the second magnetic core 102 are respectively recessed with a limiting groove 109, and the elastic clamping piece is embedded in the limiting groove 109, which limits the elastic clamping piece and prevents it from loosening.

[0028] Specifically, the side wall of the elastic clamping piece is arranged in a concave arc structure, and the side wall of the elastic clamping piece is in contact with the inner bottom wall of the limiting groove 109. The concave arc structure of the side wall of the elastic clamping piece can effectively increase the elastic force of the elastic clamping piece, so that the first magnetic core and the second magnetic core are clamped more firmly and reliably, prolonging the service life of the transformer.

[0029] Specifically, the inner side walls of the first magnetic core 101 and the second magnetic core 102 are in contact with the end walls of the first skeleton 103 and the second skeleton 104, so that the displacement and loosening of the first skeleton and the second skeleton can be effectively avoided, and the reliability and service life of the transformer are effectively improved.

[0030] Specifically, the first skeleton 103 is provided with a plurality of limiting flanges 1032 in the height direction, and the first coil winding 105 is wound between two adjacent limiting flanges 1032, thereby limiting the coil and facilitating winding of the coil.

[0031] Specifically, the first magnetic core 101 and the second magnetic core 102 are both made of Mn-Zn soft magnetic ferrite material, which is composed of manganese, zinc, iron and other elements, has high magnetic permeability and low magnetic hysteresis loss, can realize high magnetic induction intensity under a small magnetic field, and has high magnetic permeability, low magnetic hysteresis loss, good thermal stability and corrosion resistance.

[0032] Specifically, the first skeleton 103 and the second skeleton 104 are both made of bakelite or flame-retardant nylon or flame-retardant PET plastic or flame-retardant PBT plastic or liquid crystal polymer material, which effectively improves the insulation performance and durability of the skeleton and prolongs the service life of the transformer.

[0033] Specifically, the working principle and process of the utility model are as follows:

[0034] The first magnetic core and the second magnetic core are respectively provided with a first magnetic core column and a second magnetic core column, the cross section of the first magnetic core column is circular structure, the cross section of the second magnetic core column is rectangular structure, the second magnetic core cover is arranged on the upper end of the first magnetic core, the lower end wall of the second magnetic core column abuts against the upper end wall of the first magnetic core column, the first skeleton is in cylindrical structure, the second skeleton is in cuboid structure, the upper end of the first skeleton and the second skeleton is concave with a first through hole and a second through hole matched with the first magnetic core column and the second magnetic core column, the first magnetic core column is embedded in the first through hole, the second magnetic core column is embedded in the second through hole, the first coil winding is wound on the first skeleton, and the second coil winding is wound on the second skeleton, so that the assembly and disassembly of the transformer are more convenient and fast, the assembly efficiency of the transformer is improved, and the disassembly, maintenance and repair are facilitated, and the utility model has high practicability, and can be used for color TV flyback transformer, neon lamp power supply and LED lamp power supply.

[0035] The above is only the preferred embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation, direct / indirect application in other related technical fields under the utility model concept of the utility model, and the contents of the utility model specification and drawings are included in the patent protection range of the utility model.

Claims

1. A flyback transformer, characterized by The first magnetic core, the second magnetic core, the first skeleton, the second skeleton, the first coil winding and the second coil winding, two ends of the first magnetic core and the second magnetic core are respectively provided with a first magnetic core column and a second magnetic core column, the cross section of the first magnetic core column is in a circular structure, the cross section of the second magnetic core column is in a rectangular structure, the second magnetic core cover is arranged on the upper end of the first magnetic core, and the lower end wall of the second magnetic core is in abutment with the upper end wall of the first magnetic core, the first skeleton is in a cylindrical structure, the second skeleton is in a cuboid structure, the upper end of the first skeleton and the second skeleton is respectively provided with a first through hole and a second through hole matched with the first magnetic core column and the second magnetic core column, the first magnetic core column is respectively embedded in the first through hole, the second magnetic core column is respectively embedded in the second through hole, the first coil winding is wound on the first skeleton, and the second coil winding is wound on the second skeleton.

2. The flyback transformer of claim 1, wherein, The elastic clamping piece is also included, the elastic clamping piece is in a U-shaped structure, and the lower end and the upper end of the elastic clamping piece are in abutment with the lower end wall of the first magnetic core and the upper end wall of the second magnetic core respectively.

3. The flyback transformer of claim 2, wherein, The lower end wall and the side wall of the first magnetic core and the upper end wall and the side wall of the second magnetic core are respectively provided with a limiting groove, and the elastic clamping piece is embedded in the limiting groove.

4. The flyback transformer of claim 3, wherein, The side wall of the elastic clamping piece is in a concave circular arc structure, and the side wall of the elastic clamping piece is in abutment with the inner bottom wall of the limiting groove.

5. The flyback transformer of claim 1, wherein, The inner side wall of the first magnetic core and the second magnetic core is in abutment with the two end walls of the first skeleton and the second skeleton.

6. The flyback transformer of claim 1, wherein, The first skeleton is provided with a plurality of limiting flanges in the height direction, and the first coil winding is wound between two adjacent limiting flanges.

7. The flyback transformer of claim 1, wherein, The first magnetic core and the second magnetic core are formed of Mn-Zn soft magnetic ferrite material.

8. The flyback transformer of claim 1, wherein, The first skeleton and the second skeleton are formed of bakelite or flame-retardant nylon or flame-retardant PET plastic or flame-retardant PBT plastic or liquid crystal polymer material.

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