CN203444947U

CN203444947U - High-frequency and high-power transformer for large adjustable power source

Info

Publication number: CN203444947U
Application number: CN201320555280.3U
Authority: CN
Inventors: 朱建林; 朱晓文; 高伟; 蒋学斌; 刘永良
Original assignee: Zhangjagang City Hua Yang Electronics Co Ltd
Current assignee: Zhangjagang City Hua Yang Electronics Co Ltd
Priority date: 2013-09-09
Filing date: 2013-09-09
Publication date: 2014-02-19
Anticipated expiration: 2023-09-09

Abstract

The utility model discloses a high-frequency and high-power transformer for a large adjustable power source. The high-frequency and high-power transformer comprises a skeleton and a winding reel arranged in the skeleton. An iron core penetrates through the skeleton and the winding reel, and the skeleton is at least internally provided with three annular conducting sheets which are arranged on the winding reel in an overlapped and sleeved mode. The part between every two adjacent annular conducting sheets is stuffed with a unit primary coil, wherein the unit primary coil is installed on the part, between every two adjacent annular conducting sheets, of the winding reel, and the unit primary coil is formed by winding an insulated wire in the radial direction of the winding reel from inner to outer. The unit primary coils and the adjacent annular conducting sheets are insulated through insulation sheets, and all unit primary coils are connected in parallel to form a primary winding, and all annular conducting sheets are connected in parallel to form a secondary winding. The high-frequency and high-power transformer has the advantage of being capable of improving the maximum output power of the transformer.

Description

High-frequency high-power transformer for large-scale adjustable power supply

Technical field

The utility model relates to the high-frequency high-power transformer for large-scale adjustable power supply.

Background technology

Transformer of a great variety, wherein there is a high-frequency high-power transformer for large-scale adjustable power supply, its structure comprises: skeleton, be arranged at the coiling cylindrical shell in skeleton, iron core is arranged in skeleton and coiling cylindrical shell, on coiling cylindrical shell, be directly wound with primary coil, in order to increase power output, adopt annular conductive film as secondary coil, annular conductive film is sleeved on primary coil periphery.The shortcoming of the high-frequency high-power transformer of said structure is: for the transformer of a certain model, the specification of its skeleton and iron core is definite constant, cause as the specification of the annular conductive film of secondary coil also relatively definite, because annular conductive film is sleeved on the periphery of primary coil, it is the endoporus that primary coil is arranged in annular conductive film, wire diameter and the coiling number of turns of primary coil are all restricted, affected the peak power output of transformer, the transformer of PQ50 type of take is example, and its peak power output is no more than 2000W conventionally.

Utility model content

The purpose of this utility model is to provide a kind of high-frequency high-power transformer for large-scale adjustable power supply that can improve transformer peak power output.

For achieving the above object, the utility model has adopted following technical scheme: the described high-frequency high-power transformer for large-scale adjustable power supply, comprise: skeleton, be arranged at the coiling cylindrical shell in skeleton, iron core is arranged in skeleton and coiling cylindrical shell, in skeleton, be at least provided with three stacks and be set in the annular conductive film on coiling cylindrical shell, between adjacent two rings shape conducting strip, filling has a unit primary coil, unit primary coil is sleeved on the coiling cylindrical shell between adjacent two rings shape conducting strip, unit primary coil by along coiling cylindrical shell radially from inside to outside order around insulated conductor coiling form, between unit primary coil and adjacent annular conductive film, by insulating trip mutually insulated, all unit parallel connection of primary windings forms armature winding, all annular conductive films secondary winding that form in parallel.

Further, the aforesaid high-frequency high-power transformer for large-scale adjustable power supply, wherein: every annular conductive film comprises the annular copper sheet that at least two orders are connected, passes through insulating trip mutually insulated between adjacent annular copper sheet.

Further, the aforesaid high-frequency high-power transformer for large-scale adjustable power supply, wherein: described insulating trip is insulating paper.

By the enforcement of technique scheme, the utlity model has the advantage that can improve transformer peak power output.

Accompanying drawing explanation

Fig. 1 is the structural representation of the high-frequency high-power transformer for large-scale adjustable power supply described in the utility model.

Fig. 2 is the structural representation of the A-A section of Fig. 1.

Fig. 3 is the perspective view of Fig. 1.

Fig. 4 is the decomposition texture schematic diagram of Fig. 1.

Fig. 5 is the structural representation of the annular conductive film shown in Fig. 1.

Embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.

As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, the described high-frequency high-power transformer for large-scale adjustable power supply, comprise: skeleton 1, be arranged at the coiling cylindrical shell 2 in skeleton 1, iron core 3 is arranged in skeleton 1 and coiling cylindrical shell 2, in skeleton 1, be at least provided with three stacks and be set in the annular conductive film 4 on coiling cylindrical shell 2, in the present embodiment, in skeleton 1, be provided with five stacks and be set in the annular conductive film 4 on coiling cylindrical shell 2; Between adjacent two rings shape conducting strip 4, filling has a unit primary coil 5, unit primary coil 5 is sleeved on the coiling cylindrical shell 2 between adjacent two rings shape conducting strip 4, unit primary coil 5 by along coiling cylindrical shell radially from inside to outside order around insulated conductor coiling form; Between unit primary coil 5 and adjacent annular conductive film 4 by insulating trip 6 mutually insulateds, all unit primary coil 5 armature windings that form in parallel, all annular conductive films 4 secondary winding that form in parallel; In the present embodiment, every annular conductive film 4 comprises the annular copper sheet that two orders are connected, between adjacent annular copper sheet, pass through insulating trip 6 mutually insulateds, because a slice annular copper sheet is equivalent to a circle secondary winding, in practical application, can increase by increasing the sheet number of annular copper sheet in annular conductive film 4 number of turn of secondary winding, thereby change the output of transformer; In the present embodiment, described insulating trip is insulating paper, and because insulating paper is not only thin, and insulation effect is good, so can not take in a large number the effective installing space in skeleton 1 after adopting insulating paper as insulating trip, be conducive to the smooth installation of annular conductive film and unit primary coil.Owing to forming the unit primary coil 5 of armature winding, be separately positioned on the coiling cylindrical shell 2 between adjacent annular conducting strip 4, be that unit primary coil 5 is embedded between two adjacent annular conducting strips 4, unit primary coil 5 is with annular conductive film 4 structure that arranges stacking gradually up and down, this structure makes the wire diameter of unit primary coil and the coiling number of turns all can not be subject to the restriction of the interior hole dimension of annular conductive film 4, thereby can improve the power output of transformer; And can be in the situation that do not affect the input power of unit primary coil 5, make the thickness attenuation of unit primary coil 5, thereby can be corresponding increase form the thickness of annular copper sheet in the annular conductive film 4 of secondary winding, improve the electric current ability to bear of annular conductive film 4, can further improve the power output of transformer.In actual applications, adopt the peak power output of the PQ50 type transformer of said structure can reach 5000W, highest frequency can reach 200 hertz.

Claims

1. for the high-frequency high-power transformer of large-scale adjustable power supply, comprise: skeleton, be arranged at the coiling cylindrical shell in skeleton, iron core is arranged in skeleton and coiling cylindrical shell, it is characterized in that: in skeleton, be at least provided with three stacks and be set in the annular conductive film on coiling cylindrical shell, between adjacent two rings shape conducting strip, filling has a unit primary coil, unit primary coil is sleeved on the coiling cylindrical shell between adjacent two rings shape conducting strip, unit primary coil by along coiling cylindrical shell radially from inside to outside order around insulated conductor coiling form; Between unit primary coil and adjacent annular conductive film, by insulating trip mutually insulated, all unit parallel connection of primary windings forms armature winding, all annular conductive films secondary winding that form in parallel.

2. the high-frequency high-power transformer for large-scale adjustable power supply according to claim 1, is characterized in that: every annular conductive film comprises the annular copper sheet that at least two orders are connected, and passes through insulating trip mutually insulated between adjacent annular copper sheet.

3. the high-frequency high-power transformer for large-scale adjustable power supply according to claim 1 and 2, is characterized in that: described insulating trip is insulating paper.