CN1667764B - High voltage transformer - Google Patents

High voltage transformer Download PDF

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Publication number
CN1667764B
CN1667764B CN2005100547211A CN200510054721A CN1667764B CN 1667764 B CN1667764 B CN 1667764B CN 2005100547211 A CN2005100547211 A CN 2005100547211A CN 200510054721 A CN200510054721 A CN 200510054721A CN 1667764 B CN1667764 B CN 1667764B
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China
Prior art keywords
magnetic core
molded coil
mentioned
coil
magnetic ferrites
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CN2005100547211A
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Chinese (zh)
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CN1667764A (en
Inventor
松本茂义
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Ushio Denki KK
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Ushio Denki KK
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/24—Magnetic cores
    • H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/2876—Cooling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F30/00—Fixed transformers not covered by group H01F19/00
    • H01F30/06—Fixed transformers not covered by group H01F19/00 characterised by the structure

Abstract

The invention provides a high voltage transformer which does not damage the insulation property of a mold coil and does not break a ferrite magnetic core even if injection power to an excimer lamp is increased . The high voltage transformer has E-type ferrite magnetic cores 11a, 11b, and a mold coil 13 which is coated with an insulating material and has a hollow part. The E-type ferrite magnetic core is integrally fixed by means of frame members 12a, 12b with inside legs 110a, 110b of the E-type ferrite magnetic core inserted into the hollow part of the mold coil 13. A supporting member 14 which supports the mold coil 13 apart from the E-type ferrite magnetic cores 11a, 11b is fixed to the frame members 12a, 12b.

Description

High-tension transformer
Technical field
The present invention relates to a kind of high-tension transformer, particularly be used in the high-tension transformer that the uviol lamp that carries out high-frequency lighting is used lamp circuit.
Background technology
In recent years, the excimer light irradiation device is mainly used in the organic decomposition of the display panel substrate surface attachment of liquid crystal panel display element and removes or the surfaction of panel substrate etc.Uviol lamp as the light source that is equipped on this excimer light irradiation device, feature with the vacuum-ultraviolet light that radiates single wavelength consumingly, in the uviol lamp that has used for example xenon of being enclosed with gas as discharge, the vacuum ultraviolet (VUV) of radiation wavelength 172nm is only well-known.
These uviol lamps are in recent years in order to improve productivity, are required high outputization or grow that sizeization is dies, thereby be required to increase the access power to uviol lamp.In the ultraviolet lamp power, combination E type magnetic ferrites magnetic core, and with insulating material such as for example resin molded the coil of coil outer surface (below, be called molded coil) and the high-tension transformer that constitutes is used.As the employed Mn Zn of this magnetic ferrites magnetic core magnetic ferrites, Ni Zn magnetic ferrites etc. have the advantage that iron loss is few and conversion efficiency is excellent in high frequency, have more crisp shortcoming on the contrary.
Fig. 3 is the front view of the structure of the employed high-tension transformer 10 of lamp circuit used of the uviol lamp that relates to of expression prior art; The 4th (a) figure is the side cut away view that the A-A from high-tension transformer shown in Figure 3 10 sees; Fig. 4 (b) is the side cut away view that the B-B from high-tension transformer shown in Figure 3 10 sees.
In these figure, 11a, 11b are respectively E type magnetic ferrites magnetic cores, and members of frame 12a, the 12b that is used for fixing two magnetic ferrites magnetic core 11a, 11b is installed in the both sides of magnetic ferrites magnetic core 11a, 11b.The 13rd, be insulating material such as resin and molded molded coil by for example silicon.Be inserted with protuberance 110a, the 110b of the central authorities that are positioned at a pair of E type magnetic ferrites magnetic core 11a, 11b at the hollow bulb 130 of molded coil 13, and between molded coil 13 and magnetic ferrites magnetic core 11a, 11b, dispose for example insulating paper about thickness 1mm 20.Under this kind state, for the bolt 15 that is inserted in the bolt hole of being located at members of frame 12a, 12b respectively nut 16 is installed and is imposed screw fixed, then be fixed with magnetic ferrites magnetic core 11a and magnetic ferrites magnetic core 11b integratedly, and molded coil 13 also relative magnetic ferrites magnetic core 11a, 11b are fixed.
Fig. 5 is the part of expression excision molded coil 13 and represent the amplification stereogram of the molded coil 13 of section.
In Fig. 5, the 134th, primary coil, the 135th, secondary coil, 136,137,138 is respectively insulating paper.
High-tension transformer 10 shown in Figure 3, be external diameter, and the state that almost do not have of the difference of the internal diameter (footpath of hollow bulb 130) of molded coil 13 of protuberance 110a, 110b that is positioned at the central authorities of magnetic ferrites magnetic core 110,110b, that is, become the structure that between protuberance 110a, 110b and molded coil 113, does not almost have the space.The reasons are as follows of so constituting is described.
As above-mentioned ground, magnetic ferrites magnetic 11a, 11b are mechanically more crisp, thereby can't carry out above-mentioned screw fixed excessive, powerfully.Therefore, if the bigger structure of difference of the external diameter that makes protuberance 110a, 110b and the internal diameter of molded coil 13, the vibration during then by conveying etc., molded coil 13 has the possibility that radially departs from.At this moment, obtain being positioned at protuberance 120a, the 120b of each end of magnetic ferrites magnetic 11a, 11b and the outer peripheral face 132 of molded coil 13 and become state of contact.As shown in Figure 5, the high-tension secondary coil 135 of the generation of molded coil 13 is positioned at outer circumferential side, thereby be used with the contacted state of outer peripheral face of protuberance 120a, 120b and molded coil 13, then in contact portion, the high-frequency discharge of generation is arranged and the possibility of deterioration insulating material.A little thus reasons become the structure that does not almost have the space between protuberance 110a, 110b and molded coil 13.
Patent documentation 1: open the flat 10-241957 of communique number of Japan Patent
Patent documentation 2: open communique 2002-353041 number of Japan Patent
Yet in the high-tension transformer of structure as mentioned above, if increase input power to uviol lamp corresponding to the requirement of the height outputization of in recent years uviol lamp or long sizeization, produce the damaged problem that lacks of magnetic ferrites magnetic core.
Summary of the invention
The objective of the invention is, point even a kind of access power that increases to uviol lamp is provided, also can not undermine the insulating properties of molded coil in view of the above problems, can not damage the high-tension transformer of magnetic ferrites magnetic core again.
The present invention adopts following scheme in order to solve above-mentioned problem.
The high-tension transformer of first scheme, it has: E type magnetic ferrites magnetic core and covered and had the molded coil of hollow bulb by insulating material; Insert at the hollow bulb of above-mentioned molded coil under the state of middle pin of E type magnetic ferrites magnetic core, fixed E type magnetic ferrites magnetic core integratedly by members of frame, it is characterized in that, on above-mentioned members of frame support component is installed, this support component is isolated and the support molded coil from above-mentioned E type magnetic ferrites magnetic core; Above-mentioned molded coil and and its above-mentioned magnetic ferrites magnetic core in opposite directions between only clip the space.
Alternative plan is that in first scheme, above-mentioned support component is installed on the above-mentioned members of frame, and is isolated into and can ventilates between above-mentioned molded coil and the above-mentioned E type magnetic ferrites magnetic core.
According to technical scheme 1 described invention, because this high-tension transformer, have: E type magnetic ferrites magnetic core and cover and have the molded coil of hollow bulb by insulating material; Insert at the hollow bulb of above-mentioned molded coil under the state of middle pin of E type magnetic ferrites magnetic core, fixed E type magnetic ferrites magnetic core integratedly by members of frame, wherein, the support component of isolating and support molded coil from above-mentioned E type magnetic ferrites magnetic core is installed on above-mentioned members of frame, therefore, even a kind of access power that increases to uviol lamp can be provided, also can not undermine the insulating properties of molded coil, can not damage the high-tension transformer of magnetic ferrites magnetic core again.
According to technical scheme 2 described inventions, because support component is installed on the above-mentioned members of frame, and is isolated into and can ventilates between molded coil and the E type magnetic ferrites magnetic core, therefore, can further improve the cooling of molded coil, and can prevent the deterioration of the resin that is molded in the molded coil.
Description of drawings
Fig. 1 is the front view of the structure of the expression high-tension transformer 1 that is used in the lamp circuit that the uviol lamp that the present invention relates to uses.
Fig. 2 is the side cut away view that A-A and B-B saw from high-tension transformer shown in Figure 11.
Fig. 3 is the front view of the structure of the expression high-tension transformer that is used in the lamp circuit that uviol lamp that prior art relates to uses.
Fig. 4 is the side cut away view that A-A and B-B saw from high-tension transformer shown in Figure 3 10.
Fig. 5 is the part of expression excision molded coil 13 and represent the amplification stereogram of the molded coil 13 of section.
Embodiment
Use Fig. 1 and Fig. 2 that one embodiment of the invention are described.
Fig. 1 is that expression is used in uviol lamp (Excimer lamp) that the invention of present embodiment the relates to front view with the structure of the high-tension transformer 1 of lamp circuit; Fig. 2 a is the side cut away view that A-A saw of expression from high-tension transformer shown in Figure 11; Fig. 2 (b) is the side cut away view that B-B saw of expression from high-tension transformer shown in Figure 11.
In these figure, 11a, 11b are respectively E type magnetic ferrites magnetic core; Magnetic ferrites magnetic core 11a, 11b have cylindric protuberance 110a, 110b that is positioned at central authorities and protuberance 120a, the 120b that is positioned at the end, constitute about E type shape.12a, 12b are the members of frame that is mounted for two magnetic ferrites magnetic core 11a, 11b are fixed in the both sides of magnetic ferrites magnetic core 11a, 11b.The 13rd, having by for example silicon is the molded coil of the molded hollow bulb 130 of insulating material such as resin.The 14th, be installed in the support component of members of frame 12a, 12b by screw fixed as example.
Assemble this high-tension transformer 1, protuberance 110a, the 110b that at first will be positioned at a pair of E type magnetic ferrites magnetic core 11a, 11b central authorities are inserted into the hollow bulb 130 of molded coil 13.Under this state, the screw fixed in addition by with respect to the bolt 15 that is inserted in the bolt hole of being located at members of frame 12a, 12b respectively nuts 16 being installed just can be at protuberance 110a and the protuberance 110b of butt magnetic ferrites magnetic core 11a and magnetic ferrites magnetic core 11b, reach under the state of protuberance 120a and protuberance 120b and carry out fixing integratedly.Afterwards, support component 14 is installed on the members of frame 12, thus, just can sandwiches and fixing 8 positions of molded coil 13 peripheries by support component 14 by screw fixed etc.Its result being formed with space G1, space G2 between magnetic ferrites magnetic core 11a, 11b and the molded coil 13, reaching under the state of space G3, remains fixed in magnetic ferrites magnetic core 11a, 11b with molded coil 13.
At this in detail, the size of each parts that constitutes high-tension transformer 1 of the present invention etc. is described in detail.
The diameter of cylindric protuberance 110a, 110b that is positioned at the central authorities of magnetic ferrites magnetic core 11a, 11b for example is φ 30mm.And, magnetic ferrites magnetic core 11a, 11b when lighting uviol lamp the some modulation frequency and suitably change its material.For example, when the point modulation frequency is 10kHz～1MHz, then uses Mn Zn magnetic ferrites magnetic core, and when 1MHz is above, then use NiZn magnetic ferrites magnetic core.
Molded coil 13 has drum as shown in Figure 5, and external diameter for example is φ 60mm, and internal diameter for example is φ 40mm.Molded coil 13 for example uses nomex insulating papers such as (nomex) on coil core, and Ritz (litz) line of a plurality of single lines of bunchy is used on primary coil 134 and secondary coil 135.The outer surface of molded coil 13 is to select any resin and carry out molded from the such resin of silicones or epoxy resin.
Support component 14 preferably uses insulating material, so that can not produce undesired discharging between support component 14 and molded coil 13.For example use glass epoxy resin, paper epoxy resin, paper phenolic resins, pottery etc.
According to high-tension transformer 1 of the present invention, for uviol lamp being made high outputization, long sizeization, even input surpasses existing 1.5 times electric power, the above electric power of for example 1500W, can not produce yet and damage magnetic ferrites magnetic core 11a, the such problem of 11b, it the reasons are as follows described.
In Fig. 3 and existing high-tension transformer 10 shown in Figure 4, stream has big electric current in the molded coil 13 if make, then conducted to molded coil 13 by the heating due to the iron loss of the self-heating due to the copper loss of coil and magnetic ferrites magnetic core 11a, 11b, making the temperature of molded coil 13 rise, mainly is to be made molded coil 13 overall thermal expand by the thermal expansion of moulded resin.Therefore, magnetic ferrites magnetic core 11a, 11b are subjected to the stress due to the heat expansion of molded coil 13 and damage via insulating paper 20.
Therewith for, in high-tension transformer 1 of the present invention, molded coil 13 between the end 131 and magnetic ferrites magnetic core 11a, 11b of molded coil 13, is formed with about space G1 of about 1 to 2mm.By there being this space G1,, not having should be due to the thermal expansion yet and put on magnetic ferrites magnetic core 11a, the 11b, thereby can prevent the damage of magnetic ferrites magnetic core 11a, 11b even molded coil 13 expands towards space G1 side.
And, in high-tension transformer 1 of the present invention, between the inner peripheral surface 132 of outer peripheral face 111a, the 111b of protuberance 110a, the 110b of magnetic ferrites magnetic core 11a, 11b and molded coil 13, be formed with the space G2 about about 5mm.And, between the outer peripheral face 133 of concave surface 121a, the 12b of protuberance 120a, the 120b of magnetic ferrites magnetic core 11a, 11b and molded coil 13, be formed with the space G3 about about 5mm.
By formation like this high-tension transformer 1 of the present invention, even in order to make the high outputization of uviol lamp, to grow sizeization and increase input power as described above to high-tension transformer 1, also can forming by space G2, G3, and make and to become easily from the inner peripheral surface 132 of molded coil 13 and the heat radiation of outer peripheral face 133, also can prevent the heat conduction to molded coil 13 from magnetic ferrites magnetic core 11a, 11b.As a result, can avoid the excessive temperature ground of molded coil 13 to rise, also can solve the problem of the insulating properties breakage due to the resin deterioration that is molded in the molded coil 13.
In addition, space G2, G3 constitute and can ventilate, and can further improve the cooling of molded coil 13 thus, can prevent to be overmolded to the deterioration of the resin of molded coil 13.
And then according to high-tension transformer 1 of the present invention, molded coil 13 is fixing by support component 14, thereby be clipped in and be supported on existing magnetic ferrites magnetic core 11a, the method of 11b is compared, and can more effectively support, thereby molded coil 13 correctly can be configured in the precalculated position.Its result, even for example when carrying, apply vibration etc., also can avoid molded coil 13 to contact, can prevent the generation of the undesired discharging due to the contacting of molded coil 13 and protuberance 120a, 120b reliably with protuberance 120a, the 120b of magnetic ferrites magnetic core 11a, 11b.
The main element symbol description
1 high-tension transformer
11a, 11b magnetic ferrites magnetic core
The cylindric protuberance of 110a, 110b magnetic ferrites magnetic core
The outer peripheral face of 111a, 111b protuberance 110a, 110b
The protuberance of 120a, 120b magnetic ferrites magnetic core
The recess of 121a, 121b protuberance 120a, 120b
12a, 12b members of frame
13 molded coils
The hollow bulb of 130 molded coils
The end of 131 molded coils
The inner peripheral surface of 132 molded coils
The outer peripheral face of 133 molded coils
134 primary coils
135 secondary coils
14 support components
15 bolts
16 nuts
G1, G2, G3 space

Claims (2)

1. high-tension transformer, it has: E type magnetic ferrites magnetic core and covered and had the molded coil of hollow bulb by insulating material; Inserted at the hollow bulb of above-mentioned molded coil under the state of middle pin of above-mentioned E type magnetic ferrites magnetic core, fixed E type magnetic ferrites magnetic core integratedly, it is characterized in that by members of frame,
On above-mentioned members of frame support component is installed, this support component is from above-mentioned E type magnetic ferrites magnetic core isolation and support above-mentioned molded coil;
Above-mentioned molded coil and and its above-mentioned magnetic ferrites magnetic core in opposite directions between only clip the space.
2. high-tension transformer as claimed in claim 1 is characterized in that above-mentioned support component is installed on the above-mentioned members of frame, and is isolated into and can ventilates between above-mentioned molded coil and the above-mentioned E type magnetic ferrites magnetic core.
CN2005100547211A 2004-03-11 2005-03-11 High voltage transformer Active CN1667764B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP069767/2004 2004-03-11
JP2004069767A JP4318079B2 (en) 2004-03-11 2004-03-11 High voltage transformer

Publications (2)

Publication Number Publication Date
CN1667764A CN1667764A (en) 2005-09-14
CN1667764B true CN1667764B (en) 2010-09-08

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JP (1) JP4318079B2 (en)
KR (1) KR100758771B1 (en)
CN (1) CN1667764B (en)
TW (1) TW200531093A (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT523579A1 (en) * 2020-03-05 2021-09-15 Avl List Gmbh Magnetic choke, choke arrangement and converter with choke arrangement

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1298680A2 (en) * 2001-09-28 2003-04-02 Siemens Aktiengesellschaft Electrical winding arrangement

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10241957A (en) * 1997-02-28 1998-09-11 Hitachi Ferrite Electronics Ltd High-voltage transformer
KR200176202Y1 (en) * 1997-11-14 2000-04-15 권호택 Flyback transformer case structure
JP2002353041A (en) * 2001-05-29 2002-12-06 Harison Toshiba Lighting Corp High voltage transformer, discharge lamp lighting device and floodlight

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1298680A2 (en) * 2001-09-28 2003-04-02 Siemens Aktiengesellschaft Electrical winding arrangement

Also Published As

Publication number Publication date
JP4318079B2 (en) 2009-08-19
TWI315531B (en) 2009-10-01
JP2005260007A (en) 2005-09-22
KR100758771B1 (en) 2007-09-14
TW200531093A (en) 2005-09-16
CN1667764A (en) 2005-09-14
KR20050091990A (en) 2005-09-16

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