CN1177192A - High voltage transformer for electric cooking oven - Google Patents
High voltage transformer for electric cooking oven Download PDFInfo
- Publication number
- CN1177192A CN1177192A CN97110893A CN97110893A CN1177192A CN 1177192 A CN1177192 A CN 1177192A CN 97110893 A CN97110893 A CN 97110893A CN 97110893 A CN97110893 A CN 97110893A CN 1177192 A CN1177192 A CN 1177192A
- Authority
- CN
- China
- Prior art keywords
- iron core
- coil
- font iron
- electric cooking
- cooking oven
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/08—High-leakage transformers or inductances
-
- 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
- H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F2038/003—High frequency transformer for microwave oven
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulating Of Coils (AREA)
- Control Of High-Frequency Heating Circuits (AREA)
- Constitution Of High-Frequency Heating (AREA)
- Coils Of Transformers For General Uses (AREA)
Abstract
The present invention discloses a high-pressure transformer for electronic cooking stove, which has the advantages of simplified insulation structure, simple production procedures and low production cost. An E-shaped iron core contacts an I-shaped iron core so as to form a plurality of chambers; a primary coil, a filament coil, a bypass iron core and a secondary coil are inserted in the chambers in order; the internal walls of the E-shaped iron core are provided with an insulation coil skeleton; the external sides of the E-shaped iron core and the I-shaped iron core are respectively fixed with a winding terminal support base; the winding terminal support bases are connected with a winding terminal.
Description
The present invention relates to be used for the high-tension transformer of electric cooking oven,, boost productivity, save the electric cooking oven high-tension transformer of Master Cost especially about improving the insulation system of transformer.
The frequency electromagnetic waves cooking food that this electric cooking oven originally utilizes magnetron to produce drives the required power supply of described magnetron for providing, and needs high-tension transformer.
As previously mentioned, for supplying with driven by magnetron as shown in Figure 1, 2 with the high-tension transformer of the existing electric cooking oven of power supply, its structure is, E font iron core 1 and I font iron core 3 contact, and insert primary coil 5 that metal wire 5a is rolled into, heater winding 7 that wire (filament) 7a is rolled into successively in the chamber that described E font iron core 1 forms, are close to the secondary coil 11 that road iron core 9 and copper cash 11a are rolled into.
At described primary coil 5, heater winding 7, be close on road iron core 9, the secondary coil 11 respectively insulating paper P on the volume, make the face of contacting with each other and make electric insulation with the contact-making surface of described iron core 1,3, set insulator mica sheet S in the insulating paper P inboard of coiling primary coil 5.
On a side of described primary coil 5, with the termination electrode 14 of the leaded sleeve pipe 13 of adhesive tape T fixed band; Also use the termination electrode 14 of the leaded sleeve pipe 13 of adhesive tape T fixed band in a side of described secondary coil 11.
The above-mentioned existing high-tension transformer that constitutes like this, at first after the mica sheet S that coiling insulate on the primary coil 5 that metal wire 5a is rolled into, reel with insulating paper in the described mica sheet S outside, use the termination electrode 14 of adhesive tape T leaded sleeve pipe 13 of fixed band on described primary coil 5 one sides again, inject elementary iron core 1 afterwards.
Outside on heater winding 7 around insulating paper P, be provided in the upside of described primary coil 5, outside on being close to road iron core 9 around insulating paper P, be provided in the upside of described heater winding 7, outside the outside of secondary coil 11 after insulating paper P, utilize adhesive tape T to make to have the termination electrode 14 of the sleeve pipe 13 that goes between to be fixed on the described secondary coil 11, again secondary coil 11 is provided in the described upside that is close to road iron core 9.
As mentioned above, primary coil 5, heater winding 7, be close to after road iron core 9 and secondary coil 11 be plugged on the E font iron core 1 successively, make 3 weldings of I font iron core on described E font iron core 1.
After such formation high-tension transformer,, transformer is soaked into also re-use after the drying for preventing to get rusty and reduce noise.
Yet, the high-tension transformer of the above-mentioned existing electric cooking oven that constitutes like this, operation handlebar insulating paper P is outer on each parts by hand in order to insulate, fix with adhesive tape T again, also must be on primary coil 5, secondary coil 11 1 sides, utilize the termination electrode 14 of the leaded sleeve pipe 13 of adhesive tape T fixed band, very miscellaneous.
And exist because of cirrus master slice S outside on primary coil 5 and make degradation problem under increase in man-hour, the efficiency of assembling.
The present invention just proposes for addressing the above problem, and purpose provides a kind of insulation system simplification, the manufacturing process high-tension transformer that is used for electric cooking oven easy and cheap for manufacturing cost.
For achieving the above object, according to the high-tension transformer that is used for electric cooking oven of the present invention, its E font iron core contacts with I font iron core and forms a plurality of chambers, make primary coil, heater winding, be close to the road iron core and secondary coil inserts wherein successively, configuration insulated coil skeleton on each chamber inner wall of described E font iron core, at the outside of described E font iron core and I font iron core difference fixed terminals supporting seat, on described each terminals supporting seat, connect terminals.
And, the high-tension transformer that is used for electric cooking oven of the another kind of structure of the present invention, its E font iron core contacts with I font iron core and forms a plurality of chambers, make primary coil, heater winding, be close to the road iron core and secondary coil inserts wherein successively, on described each chamber inner wall of E font iron core, configuration is bent into the insulated coil skeleton of terminals fixed part, and terminals are attached on the described terminals fixed part.
Fig. 1 is the existing decomposition diagram that is used for the high-tension transformer of electric cooking oven;
Fig. 2 is the existing profile that is used for the high-tension transformer of electric cooking oven;
Fig. 3 is the decomposition diagram according to the high-tension transformer of the high frequency food heater of the embodiment of the invention 1;
Fig. 4 is the decomposition diagram according to the high-tension transformer that is used for electric cooking oven of the embodiment of the invention 2.
Fig. 5 is the profile according to the high-tension transformer that is used for electric cooking oven of the embodiment of the invention 2.
Embodiments of the invention are described in detail in detail with reference to the accompanying drawings.
Fig. 3 is the decomposition diagram according to the high-tension transformer that is used for electric cooking oven of the embodiment of the invention 1, with Fig. 1,2 identical portions dispensings with same label.
As shown in Figure 3, the high-tension transformer that is used for electric cooking oven according to the embodiment of the invention 1, E font iron core 1 and I font iron core 3 contact, be formed on the chamber inner wall in the described E font iron core 1 insulated coil skeleton 20 is set, and insert with the lower part in described coil rack inboard successively: the primary coil 5 that metal wire 5a reels and forms, the heater winding 7 that wire 7a is rolled into is close to the secondary coil 11 that road iron core 9 and metal wire 11a are rolled into.
Insulating paper P is twisted in outward on the described heater winding 7, cover insulating paper P, also cover insulating paper P at described secondary coil 11 upsides at described road iron core 9 upsides that are close to.
Side at described E font iron core and I font iron core 3 forms link slot 1a, 3a respectively, attachment screw 25 inserts in the hole that is formed on the termination electrode 23, be screwed in respectively among described each link slot 1a, 3a, the termination electrode 23 of band lead-in wire sleeve pipe 21 is connected on described E font iron core 1 and the I font iron core 3.
Described terminal board 23 is curved the right angle, and two ends are relative up and down, so that lead-in wire sleeve pipe 21 easy suits make described E font iron core 1 easily be connected respectively on the side of I font iron core 3 simultaneously.
Described skeleton 20 and termination electrode 23 usefulness such as polyphenylene sulfide (polyphenylene sulfide) or poly-butylbenzene dioctyl phthalate butanediol ester (polybutylene terephthalate) moulded section.
Described primary coil 5 need not set insulating paper P with reeling, with the quantity of reducing work hours.
On the other hand, Fig. 4 is the decomposition diagram according to the high-tension transformer that is used for electric cooking oven of the embodiment of the invention 2; Fig. 5 is the profile according to the high-tension transformer that is used for electric cooking oven of the embodiment of the invention 2, marks with same numeral for the part identical with structure among Fig. 1,2.
Shown in Fig. 4,5, the high-tension transformer that is used for electric cooking oven according to the embodiment of the invention 2, E font iron core 1 and I font iron core 3 contact, configuration insulated coil skeleton 30 on the chamber inner wall that forms in described E font iron core 1 inserts with the lower part successively in described coil rack 30 inboards: the heater winding 7 of the primary coil 5 of metal wire 5a coiled, wire 7a coiled, be close to the secondary coil 11 of road iron core 9 and metal wire 11a coiled.
Described coil rack 30 should contact with bottom side with chamber one sidewall on being formed at E font iron core 1, becomes terminals fixed part 30a at a lateral bending of described coil rack 30, sets terminals 32 at described terminals fixed part 30a with attachment screw 31.
Described primary coil 5, heater winding 7, be close to road iron core 9, secondary coil 11 and only do not rolling up insulating paper P outside the contact portion with coil rack 30, reducing operation, and described primary coil 5 removed the operation around mica sheet, so reduced operation quantity.
In addition, described coil rack 30 usefulness such as polyphenylene sulfide or the moulded section of poly-butylbenzene dioctyl phthalate butanediol ester.
Below, with the high-tension transformer effect, the effect of describing according to the embodiment of the invention 1,2 that as above constitutes that are used for electric cooking oven.
For the high-tension transformer assembling aspect that is used for electric cooking oven according to the embodiment of the invention 1, at first coil rack 20 is inserted respectively in the chamber of E font iron core 1, insert the primary coil 5 that lead 5a reels again, at this moment described primary coil 5 is not implemented the operation of insulating paper P of reeling, and has saved the operation of coiling insulant mica sheet S.
After rolling up insulating paper P outside again on heater winding 7, be inserted in the chamber of described E font iron core 1, make it to be positioned at the upside of described primary coil 5, then the road iron core 9 that is close to that assembles is inserted E shape iron core 1, make it to be positioned at the upside of described heater winding 7, insulating paper P is placed after the described upside that is close to road iron core 9, will place the described upside that is close to road iron core 9 with the secondary coil 11 that metal wire 11a reels.At this moment, described secondary coil 11 is the same with primary coil 5, has removed the operation of outer volume insulating paper P from.
As mentioned above, primary coil 5, heater winding 7, be close in the chamber that road iron core 9, secondary coil 11 insert E font iron core 1 successively after, place insulating paper P at described secondary coil 11 upsides, cover I font iron core 3 then, and with 1 welding of E font iron core.
For the high-tension transformer of formation like this, it is immersed in the groove of filling impregnating agent, carry out dried after the taking-up, can be antirust, can reduce noise simultaneously.
Inject screw 25 in the hole that on the termination electrode 23 that connects terminals 21, forms again, then screw 25 is screwed on link slot 1a, the 3a that is formed at E font iron core 1 and I font iron core 3 one sides, described terminals supporting seat 23 is connected with E font iron core 1 and I font iron core 3 respectively.
The high-tension transformer of above-mentioned formation utilizes coil rack to make primary and secondary coil 5,11 and 1 insulation of E font iron core, thereby, the insulating paper of not reeling in addition in the outside of described primary and secondary coil 5,11, saved the operation of coiling mica sheet on primary coil 5, reduce operation quantity whereby, save the fee of material of insulating paper simultaneously, the termination electrode 23 of band terminals 21 is connected with E font iron core 1 and I font iron core 3 simply, make the attended operation of terminal become simple and easy with this with attachment screw 25.
On the other hand, for assembling according to the high-tension transformer that is used for electric cooking oven of the embodiment of the invention 2, with the side of insulating paper P coiling by the primary coil 5 of metal wire 5a coiled, side with insulating paper P coiling heater winding 7, one side of reeling and to be close to road iron core 9 with insulating paper P, after the side with insulating paper P coiling secondary coil 11, stack successively, again with described primary coil 5, the heater winding 7 that has stacked of coil rack 30 parcel, the both sides of being close to road iron core 9, secondary coil 11, and insert and be formed in the chamber of E font iron core 1.
As mentioned above, coil rack 30 and respectively at primary coil 5, the heater winding 7 of a side coiling insulating paper P, be close in the chamber that road iron core 9, secondary coil 11 be inserted into E font iron core 1 after, make described E font iron core 1 and 3 weldings of I font iron core.
In the high-tension transformer of above-mentioned formation the has been immersed in filling groove of impregnating agent, take out then and carry out drying, can be antirust and reduce noise.
Behind dry the finishing, terminals 32 are connected on the terminals fixed part 30a that coil rack 30 1 lateral bendings become with trip bolt 30.
The high-tension transformer of such formation, by setting coil rack 30, remove the operation of primary winding 5 around mica sheet, need not each parts integral body of reeling with insulating paper P, utilize local parcel, not only save operation quantity, and saved the fee of material of insulating paper P, and then utilize trip bolt 31 can dock line end 32 and do simple assembling.
As mentioned above, according to the high-tension transformer that is used for electric cooking oven of the present invention, because of insulation system improves, institute has reduced the operation quantity of insulation operation simultaneously so that insulation is more effective, and has reduced the consumption of insulating paper, can save fee of material.
Claims (2)
1. high-tension transformer that is used for electric cooking oven, its E font iron core contacts with I font iron core, form a plurality of chambers, primary coil, heater winding, be close to the road iron core and secondary coil inserts wherein successively, it is characterized in that, configuration insulated coil skeleton on each inwall of described E font iron core at the outside of described E font iron core and I font iron core difference fixed terminals supporting seat, connects terminals on described each terminals supporting seat.
2. high-tension transformer that is used for electric cooking oven, its E font iron core contacts with I font iron core, form a plurality of chambers, primary coil, heater winding, be close to the road iron core and secondary coil inserts wherein successively, it is characterized in that, on described each inwall of E font iron core, configuration is bent into the insulated coil skeleton of terminals fixed part, and terminals are attached on the described terminals fixed part.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960015989A KR100187256B1 (en) | 1996-05-14 | 1996-05-14 | High voltage transformer insulator for microwave oven |
| KR1019960015988A KR100187255B1 (en) | 1996-05-14 | 1996-05-14 | High voltage transformer insulator for microwave oven |
| KR15989/96 | 1996-05-14 | ||
| KR15988/96 | 1996-05-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1177192A true CN1177192A (en) | 1998-03-25 |
Family
ID=26631825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97110893A Pending CN1177192A (en) | 1996-05-14 | 1997-05-08 | High voltage transformer for electric cooking oven |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0807942A1 (en) |
| JP (1) | JPH1092653A (en) |
| CN (1) | CN1177192A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101178972B (en) * | 2006-11-10 | 2011-09-07 | Dpc株式会社 | High-voltage transformer having injection molding insulation member |
| CN107768113A (en) * | 2017-11-24 | 2018-03-06 | 广州广日电气设备有限公司 | Transformer and its production method |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200156390Y1 (en) * | 1996-09-21 | 1999-09-01 | 윤종용 | H.v.t apparatus of microwave oven |
| KR20000014333A (en) * | 1998-08-20 | 2000-03-06 | 윤종용 | High voltage transformer having a noise preventing function of a microwave oven |
| FR2789796B3 (en) * | 1999-02-17 | 2000-12-15 | Fagor S Coop | INSULATION FOR MICROWAVE OVEN TRANSFORMER |
| US6449178B1 (en) | 1999-06-15 | 2002-09-10 | Matsushita Electric Industrial Co., Ltd. | Magnetron drive step-up transformer and transformer of magnetron drive power supply |
| KR20010037850A (en) * | 1999-10-20 | 2001-05-15 | 배길성 | High voltage transformer for microwave oven |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3387245A (en) * | 1963-08-30 | 1968-06-04 | Advance Transformer Co | Laminated core with a termainal connector and retainer means |
| US3728656A (en) * | 1972-06-26 | 1973-04-17 | Gte Sylvania Inc | Transormer and terminal assembly |
| JPS5658215A (en) * | 1979-10-17 | 1981-05-21 | Matsushita Electric Ind Co Ltd | High-tension transformer |
| US4347490A (en) * | 1981-03-06 | 1982-08-31 | Prem Magnetics, Inc. | Low profile transformer |
| JPS62154709A (en) * | 1985-12-27 | 1987-07-09 | Tokyo Electric Co Ltd | Leakage transformer |
| JPS62190826A (en) * | 1986-02-18 | 1987-08-21 | Tabuchi Denki Kk | Manufacture of transformer for microwave oven |
| JPH01289105A (en) * | 1988-05-16 | 1989-11-21 | Fujitsu Ltd | Transformer |
| US5440286A (en) * | 1991-03-26 | 1995-08-08 | North American Philips Corporation | Electrical transformer structure with coil covers |
-
1997
- 1997-05-08 CN CN97110893A patent/CN1177192A/en active Pending
- 1997-05-09 JP JP11990197A patent/JPH1092653A/en active Pending
- 1997-05-12 EP EP97303220A patent/EP0807942A1/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101178972B (en) * | 2006-11-10 | 2011-09-07 | Dpc株式会社 | High-voltage transformer having injection molding insulation member |
| CN107768113A (en) * | 2017-11-24 | 2018-03-06 | 广州广日电气设备有限公司 | Transformer and its production method |
| CN107768113B (en) * | 2017-11-24 | 2024-04-19 | 广州广日电气设备有限公司 | Transformer and production method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH1092653A (en) | 1998-04-10 |
| EP0807942A1 (en) | 1997-11-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |