CN211628820U

CN211628820U - High-frequency high-voltage high-power transformer

Info

Publication number: CN211628820U
Application number: CN201921590294.2U
Authority: CN
Inventors: 顾浩; 潘鑫森; 陈勇; 刘振华
Original assignee: Cgn Zhongke Hi Wits Technology Development Co ltd
Current assignee: Cgn Irradiation Technology Co ltd
Priority date: 2019-09-24
Filing date: 2019-09-24
Publication date: 2020-10-02
Anticipated expiration: 2029-09-24

Abstract

A high-frequency high-voltage high-power transformer comprises an iron core body formed by combining an upper iron core and a lower iron core, wherein an iron core column is arranged in the middle of the iron core body; the primary winding is sleeved on the outer side of the iron core column; a secondary winding is sleeved outside the primary winding; the upper end of the upper iron core and the lower end of the lower iron core are both connected with water jackets; and fixing holes are formed around the water jacket at the lower end of the lower iron core. Compared with the prior art, the utility model discloses a high frequency high voltage high power transformer, simple structure, processing is convenient, has solved transformer distribution parameter control, and high-voltage insulation has solved the heat dissipation problem under the heavy current condition through water jacket, primary winding and louvre.

Description

High-frequency high-voltage high-power transformer

Technical Field

The utility model relates to an electrical equipment makes the field, specifically indicates a high-frequency high-voltage high-power transformer.

Background

In recent years, with the development of the radiation processing industry in China, the demand of an electron accelerator for radiation processing is continuously increased, and meanwhile, higher requirements are put forward on the technology and the quality of the electron accelerator; the high-frequency high-voltage generator of the high-frequency high-voltage accelerator which is widely used in China at present generates high-frequency voltage in an electronic tube oscillation mode, and the high-frequency voltage is obtained by boosting the voltage through a transformer.

With the rapid development of power electronic devices, a large-capacity (more than hundred kW), high-frequency (hundred kHz) and high-voltage (more than lOkv) solid-state switching power supply has become a development trend, the general structure of the power supply is that low voltage is rectified, inverted into high-frequency voltage, and then boosted by a high-frequency high-voltage transformer for output, the high-power high-frequency high-voltage transformer is an important component for energy transmission in the solid-state switching power supply, and the advantages and disadvantages of the high-power high-frequency high-voltage transformer directly influence the efficiency of the power supply; meanwhile, the large capacity involves high voltage and large current, so the insulation and temperature rise problems of the transformer must be considered when designing the transformer.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to above-mentioned prior art not enough, and provide a high frequency high voltage high power transformer.

In order to solve the technical problem, the utility model discloses a technical scheme is:

a high-frequency high-voltage high-power transformer comprises an iron core body formed by combining an upper iron core and a lower iron core, wherein an iron core column is arranged in the middle of the iron core body; the primary winding is sleeved on the outer side of the iron core column; a secondary winding is sleeved outside the primary winding; the upper end of the upper iron core and the lower end of the lower iron core are both connected with water jackets; and fixing holes are formed around the water jacket at the lower end of the lower iron core.

Furthermore, the upper iron core and the lower iron core are both made of E-type ferrite iron cores.

Furthermore, the primary winding is formed by winding a red copper tube and is provided with a primary winding water inlet and a primary winding water outlet; and cooling water is introduced into the primary winding.

Furthermore, the secondary winding comprises a cover plate and a plurality of winding frameworks which are sequentially overlapped, and the cover plate is covered at the uppermost end of the winding frameworks; the cover plate and the winding framework are both square, and mounting through holes are formed at four ends of the cover plate and the winding framework; a threaded rod penetrates through the mounting through hole, and nuts are connected to two ends of the threaded rod in a threaded manner; the winding framework comprises an inner frame and an outer frame; a rectangular square hole is formed in the inner frame; a winding area is connected between the inner frame and the outer frame; the winding area is divided into a plurality of winding grooves by baffles; a first wire hole is formed in the upper edge of the inner frame and communicated to the inner ring of the winding groove; and the lower edge of the outer frame is provided with a second wire hole which is communicated to the outer ring of the wire winding groove.

Furthermore, the cover plate and the winding framework are both made of epoxy plates.

Furthermore, spaced square heat dissipation holes are correspondingly formed in the winding area of the winding framework and the cover plate.

Furthermore, the two sides of the water jacket are respectively connected with a water jacket water inlet and a water jacket water outlet; the water inlet and the water outlet of the water jacket are connected through a water pipe inside the water jacket.

Compared with the prior art, the utility model discloses a high frequency high voltage high power transformer, simple structure, processing is convenient, has solved transformer distribution parameter control, and high-voltage insulation has solved the heat dissipation problem under the heavy current condition through water jacket, primary winding and louvre.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic structural view of the iron core body of the present invention;

fig. 3 is a schematic structural diagram of the secondary winding of the present invention;

FIG. 4 is a schematic structural view of the bobbin of the present invention;

the winding structure comprises an upper iron core 1, a lower iron core 2, an iron core body 3, an iron core body 4, an iron core column 5, a primary winding 6, a secondary winding 7, a water jacket 51, a primary winding water inlet 52, a primary winding water outlet 61, a cover plate 62, a winding framework 63, a threaded rod 64, a nut 621, an installation through hole 622, an inner frame 623, an outer frame 624, a rectangular square hole 625, a baffle 626, a winding groove 627, a first wire hole 628, a second wire hole 629, a square radiating hole 71, a water jacket water inlet 72, a water jacket water outlet 73 and a fixing hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below.

As shown in fig. 1 to 4, a high-frequency high-voltage high-power transformer includes an iron core body 3 formed by combining an upper iron core 1 and a lower iron core 2, in this embodiment, both the upper iron core 1 and the lower iron core 2 are made of E-type ferrite iron cores; the middle of the iron core body 3 is provided with an iron core column 4; the primary winding 5 is sleeved on the outer side of the iron core column 4; the primary winding 5 is formed by winding a red copper pipe, and the primary winding 5 is provided with a primary winding water inlet 51 and a primary winding water outlet 52; cooling water is introduced into the primary winding 5.

And a secondary winding 6 is sleeved outside the primary winding 5.

The secondary winding 6 comprises a cover plate 61 and a plurality of winding frameworks 62 which are sequentially overlapped, and in order to ensure the insulation shoes, the cover plate 61 and the winding frameworks 62 are both made of epoxy plates; the cover plate 61 is covered and connected to the uppermost end of the winding framework 62; the cover plate 61 and the winding framework 62 are both square, and four ends of the cover plate 61 and the winding framework 62 are provided with mounting through holes 621; a threaded rod 63 penetrates through the mounting through hole 621, nuts 64 are connected to two ends of the threaded rod 63 through threads, and the winding framework 62 is locked by the nuts 64; the winding framework 62 comprises an inner frame 622 and an outer frame 623; a rectangular square hole 624 is formed in the inner frame 622, and the rectangular square hole 624 is used for being sleeved with the primary winding 5; a winding area is connected between the inner frame 622 and the outer frame 623; the winding area is divided into a plurality of winding grooves 626 by baffles 625; distributed capacitance between turns and layers is effectively reduced by arranging the winding grooves 626; the width and depth of the winding slot 626 are determined according to the diameter of the wound wire, and the more the number of turns of the winding slot 626, the higher the voltage; a first wire hole 627 is formed in the upper edge of the inner frame 622, and the first wire hole 627 is communicated with the inner ring of the winding groove 626; a second wire hole 628 is formed at the lower edge of the outer frame 623, and the second wire hole 628 is communicated to the outer ring of the winding groove 626.

In order to effectively solve the problem of coil heating under a high-power working condition, spaced square heat dissipation holes 629 are correspondingly formed in the winding area of the winding framework 62 and the cover plate 61.

The upper end of the upper iron core 1 and the lower end of the lower iron core 2 are both connected with a water jacket 7, and fixing holes 73 are formed around the water jacket 7 at the lower end of the lower iron core 2; the two sides of the water jacket 7 are respectively connected with a water jacket water inlet 71 and a water jacket water outlet 72; the water jacket inlet 71 and the water jacket outlet 72 are connected through a water pipe inside the water jacket 7.

The present invention is not limited to the above-described embodiments, and those skilled in the art can make modifications or changes without departing from the spirit of the present invention.

Claims

1. A high-frequency high-voltage high-power transformer is characterized in that: the iron core comprises an iron core body formed by combining an upper iron core and a lower iron core, wherein an iron core column is arranged in the middle of the iron core body; the primary winding is sleeved on the outer side of the iron core column; a secondary winding is sleeved outside the primary winding; the upper end of the upper iron core and the lower end of the lower iron core are both connected with water jackets; and fixing holes are formed around the water jacket at the lower end of the lower iron core.

2. A high frequency high voltage high power transformer according to claim 1, characterized in that: the upper iron core and the lower iron core are both E-type ferrite cores.

3. A high frequency high voltage high power transformer according to claim 1, characterized in that: the primary winding is formed by winding a red copper pipe and is provided with a primary winding water inlet and a primary winding water outlet; and cooling water is introduced into the primary winding.

4. A high frequency high voltage high power transformer according to claim 1, characterized in that: the secondary winding comprises a cover plate and a plurality of winding frameworks which are sequentially overlapped, and the cover plate is covered at the uppermost end of the winding frameworks; the cover plate and the winding framework are both square, and mounting through holes are formed at four ends of the cover plate and the winding framework; a threaded rod penetrates through the mounting through hole, and nuts are connected to two ends of the threaded rod in a threaded manner; the winding framework comprises an inner frame and an outer frame; a rectangular square hole is formed in the inner frame; a winding area is connected between the inner frame and the outer frame; the winding area is divided into a plurality of winding grooves by baffles; a first wire hole is formed in the upper edge of the inner frame and communicated to the inner ring of the winding groove; and the lower edge of the outer frame is provided with a second wire hole which is communicated to the outer ring of the wire winding groove.

5. The high-frequency high-voltage high-power transformer according to claim 4, characterized in that: the cover plate and the winding framework are both made of epoxy plates.

6. The high-frequency high-voltage high-power transformer according to claim 4, characterized in that: and spaced square heat dissipation holes are correspondingly formed in the winding area of the winding framework and the cover plate.

7. A high frequency high voltage high power transformer according to claim 1, characterized in that: the two sides of the water jacket are respectively connected with a water jacket water inlet and a water jacket water outlet; the water inlet and the water outlet of the water jacket are connected through a water pipe inside the water jacket.