CN202977128U - Microwave oven and transformer thereof - Google Patents
Microwave oven and transformer thereof Download PDFInfo
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- CN202977128U CN202977128U CN 201220630266 CN201220630266U CN202977128U CN 202977128 U CN202977128 U CN 202977128U CN 201220630266 CN201220630266 CN 201220630266 CN 201220630266 U CN201220630266 U CN 201220630266U CN 202977128 U CN202977128 U CN 202977128U
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Abstract
The utility model discloses a transformer used for a microwave oven, and the transformer includes an iron core, a primary winding, a secondary filament winding, a first secondary high-voltage winding and a second secondary high-voltage winding. The primary winding is wound on the iron core, the secondary filament winding is wound on the iron core, and the first secondary high-voltage winding and the second secondary voltage winding are wound on the iron core. A first port and a second port are formed in the first secondary high-voltage winding, and a third port and a fourth port are formed in the second secondary high-voltage winding, wherein the first port and the third port are dotted terminals. The transformer has multiplexed output ports which are used for outputting different voltage values or different phases of voltage, multiplexed output voltage is combined to enable the output voltage of the transformer to meet the requirements of different working conditions, and the performance of the transformer is improved. In addition, the utility model further provides a microwave oven which is provided with the transformer.
Description
Technical field
The utility model relates to field of domestic appliances manufacture technology, and is particularly a kind of for the transformer of microwave oven and the microwave oven with this transformer.
Background technology
Microwave oven has the advantages such as heating is fast as a kind of household electrical appliance commonly used.In use, microwave oven can be preserved the nutritional labeling in food effectively, and healthy diet is provided.
The described high-tension electricity of existing microwave oven generally has the high-tension electricity of the secondary winding output 2000V left and right in the transformer of microwave oven, then forms half-wave voltage doubler by high-voltage diode, high-voltage capacitance, drives the magnetron operation.The secondary high pressure of the transformer of traditional microwave oven can only be exported a kind of high-tension electricity, and magnetron can only be worked under the half-wave state, and the microwave oven whole efficiency is lower.
In half-wave voltage doubler, sometimes need to use the voltage of multichannel output, simultaneously the phase place of voltage also there is different requirements.Traditional transformer can't satisfy the requirement of output multi-channel and multiple phase voltage.
The utility model content
The utility model one of is intended to solve the problems of the technologies described above at least to a certain extent or provides at least a kind of useful business to select.For this reason, a purpose of the present utility model is to propose a kind of transformer that is used for microwave oven that can carry out multichannel output and can export the voltage of out of phase.
Another purpose of the present utility model is to propose to have the microwave oven of this transformer.
According to the transformer for microwave oven of the present utility model, comprising: iron core, armature winding, secondary Filament Winding, first level high voltage winding group and second subprime high pressure winding.Described armature winding is wound on described iron core; Described secondary Filament Winding is wound on described iron core; All be wound on described iron core with described the first and second secondary high pressure windings, described first level high voltage winding group has the first and second ports and described second subprime high pressure winding has the third and fourth port, and the wherein said first and the 3rd port is Same Name of Ends.
According to the transformer for microwave oven of the present utility model, increased second subprime high pressure winding.Thus, make transformer have multichannel output, to export the voltage of different magnitudes of voltage or out of phase, the voltage of multichannel output can make up, and makes the output voltage of transformer satisfy the requirement of different operating modes, has promoted the performance of transformer.If in microwave oven, can provide the voltage corresponding with the job requirement of microwave oven with this transformer application in different microwave ovens, to satisfy the requirement of working under magnetron all-wave state to multichannel output and phase place, increased the range of application of transformer.
In addition, transformer for microwave oven above-mentioned according to the utility model can also have following additional technical characterictic:
Advantageously, described first is connected with the 3rd port or described second is connected with the 4th port.Thus, stability and the scope of application of this transformer have been improved.
In addition, can also be that described the second port is connected with described the 3rd port and ground connection.Thus, the first port of transformer and the 4th port are exported the voltage of opposite phase, have increased the scope of application of transformer.
Advantageously, the voltage of described first level high voltage winding group is identical with the voltage swing of second subprime high pressure winding.Thus, be convenient to the production of transformer, improve its production efficiency.
According to a kind of microwave oven of the present utility model, comprising: magnetron, rectifier and transformer.Wherein, described transformer comprises: iron core, armature winding, secondary Filament Winding, first level high voltage winding group and second subprime high pressure winding.Particularly, described armature winding is wound on described iron core; Described secondary Filament Winding is wound on described iron core and described secondary Filament Winding and described magnetron are coupled supply with filament voltage for described magnetron; Described the first and second secondary high pressure windings all are wound on described iron core, described first level high voltage winding group has the first and second ports and described second subprime high pressure winding has the third and fourth port, the wherein said first and the 3rd port is Same Name of Ends, described the first and second secondary high pressure windings and the coupling of described rectifier.
According to microwave oven of the present utility model, increased second subprime high pressure winding in transformer.Thus, make transformer have multichannel output, to export the voltage of different magnitudes of voltage or out of phase, the voltage of multichannel output can make up, and makes the output voltage of transformer satisfy the requirement of different operating modes, has promoted the performance of transformer.Use the microwave oven of this transformer, the voltage of different magnitudes of voltage or out of phase can be provided, make microwave oven have different mode of operations, satisfy the different requirements of microwave oven to voltage under different situations, the function of the microwave oven of increase.
Described the second port be connected with the 3rd port and ground connection and described the first port and the 4th port respectively with described rectifier coupling.
Advantageously, described rectifier is two half-wave voltage-doubler rectifiers.Thus, can realize the all-wave work of magnetron.
Additional aspect of the present utility model and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present utility model.
Description of drawings
Above-mentioned and/or additional aspect of the present utility model and advantage are from obviously and easily understanding becoming the description of embodiment in conjunction with following accompanying drawing, wherein:
Fig. 1 is the schematic diagram of the transformer of an embodiment of the present utility model;
Fig. 2 is the partial schematic diagram of circuit of the microwave oven of an embodiment of the present utility model.
Wherein, transformer 300, iron core 310, armature winding 320, secondary Filament Winding 330, first level high voltage winding group 341, second subprime high pressure winding 342, the first port one, the second port 2, the 3rd port 3, the 4th port 4, magnetron 100, rectifier 200, the first half-wave voltage multiplying rectifier 201, the second half-wave voltage multiplying rectifier 202.
Embodiment
The below describes embodiment of the present utility model in detail, and the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or the element with identical or similar functions from start to finish.Be exemplary below by the embodiment that is described with reference to the drawings, be intended to for explanation the utility model, and can not be interpreted as restriction of the present utility model.
in description of the present utility model, it will be appreciated that, term " " center ", " vertically ", " laterally ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", orientation or the position relationship of indications such as " counterclockwise " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as restriction of the present utility model.
In addition, term " first ", " second " only are used for describing purpose, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characterictic.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the present utility model, the implication of " a plurality of " is two or more, unless clear and definite concrete restriction is separately arranged.
In the utility model, unless clear and definite regulation and restriction are separately arranged, broad understanding should be done in the terms such as term " installation ", " being connected ", " connection ", " fixing ", for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be mechanical connection, can be also to be electrically connected to; Can be directly to be connected, also can indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can understand as the case may be the concrete meaning of above-mentioned term in the utility model.
In the utility model, unless clear and definite regulation and restriction are separately arranged, First Characteristic Second Characteristic it " on " or D score can comprise that the first and second features directly contact, can comprise that also the first and second features are not directly contacts but by the other feature contact between them.And, First Characteristic Second Characteristic " on ", " top " and " above " comprise First Characteristic directly over Second Characteristic and oblique upper, or only represent that the First Characteristic level height is higher than Second Characteristic.First Characteristic Second Characteristic " under ", " below " and " below " comprise First Characteristic under Second Characteristic and tiltedly, or only represent that the First Characteristic level height is less than Second Characteristic.
Microwave oven is household electrical appliance important during people live, the high-tension electricity of microwave oven is all generally by the high pressure about the secondary high pressure winding output 2000V of micro-wave oven transformer, then form half voltage doubling rectifing circuit by high-voltage diode, high-voltage capacitance, be used for driving magnetron work.Only have one group of secondary high pressure output winding in traditional microwave oven, can only export the high-tension electricity of a type, but in actual use, need multichannel output during full-wave rectification and the phase place of exporting high-tension electricity is had certain requirement.The transformer of traditional microwave oven can't satisfy these requirements.The purpose of this utility model is to propose a kind of transformer with many group secondary high pressure output windings.This transformer can be exported multiple different voltage, also can export the voltage of out of phase.
Describe with reference to the accompanying drawings the transformer that is used for microwave oven according to the utility model embodiment in detail.
Fig. 1 shows the schematic diagram of the transformer 300 that is used for microwave oven of an embodiment of the present utility model, with reference to Fig. 1, this transformer 300 comprises: iron core 310, armature winding 320, secondary Filament Winding 330, first level high voltage winding group 341 and second subprime high pressure winding 342.
Specifically, iron core 310 comprises EI iron core and magnetic leakage iron core.
Armature winding 320 is wound on iron core 310.Armature winding 320 connects electric network source, and generates an electromagnetic field by the coil of coiling on iron core 310, is used for producing magnetic circuit on iron core 310.
First time level high voltage winding group 341 is wound on iron core 310, and second subprime high pressure winding 342 also is wound on iron core 310.First time level high voltage winding group 341 has the first port one and the second port 2, and second subprime high pressure winding 342 has the 3rd port 3 and the 4th port 4, and wherein the first port one and the 3rd port 3 are Same Name of Ends.First time level high voltage winding group 341 is wound on iron core 310, and the effect of the toroid on iron core 310 makes on first level high voltage winding group 341 and produces induced potential, thereby the two ends of first level high voltage winding group 341 produce induced voltage.Same, the second subprime high pressure winding 342 that increases in this transformer 300 and the course of work of first level high voltage winding group 341 are roughly the same, and the toroid on iron core 310 also can generate induced voltage at the two ends of second subprime high pressure winding 342.
According to the transformer 300 for microwave oven of the present utility model, increased second subprime high pressure winding 342.Thus, make transformer 300 have multichannel output, to export the voltage of different magnitudes of voltage or out of phase, the voltage of multichannel output can make up, and makes the output voltage of transformer 300 satisfy the requirement of different operating modes, has promoted the performance of transformer 300.If this transformer 300 is applied in microwave oven, can satisfy in full-wave rectification the requirement to multichannel output and phase place, increased the range of application of transformer 300.
Advantageously, under a kind of working condition of this transformer 300, the first port one is connected with the 3rd port 3, is used for making the voltage of the second port 2 and the 4th port 4 output same phases.Certainly, similarly, the second port 2 is connected with the 4th port 4 ports, and the first port one and the 3rd port 3 also can be exported the voltage of same phase.Specifically, when first level high voltage winding group 341 voltage identical with second subprime high pressure winding 342 output voltage values, in other words, when first level high voltage winding group 341 and second subprime high pressure winding 342 have identical number of turns, the transformer 300 under this operating mode will be exported the voltage that size is identical and phase place is identical.First level high voltage winding group 341 and second subprime high pressure winding 342 can work alone respectively, to improve the stability of transformer 300 work.
Particularly, under the another kind of working condition of this transformer 300, the second port 2 can be connected with the 3rd port 3 and ground connection.Due to the second port 2 and the 3rd port 3 non-same polarities, the first port one and the 4th port 4 will be exported the voltage of opposite phase this moment.Certainly, also the first port one can be connected with the 4th port 4 and ground connection, and the second port 2 and the 3rd port 3 will be exported the voltage of formed objects, opposite phase.
Preferably, first level high voltage winding group 341 is identical with the voltage swing of second subprime high pressure winding 342 outputs, and in other words, first level high voltage winding group 341 and second subprime high pressure winding 342 have identical number of turns.
Microwave oven of the present utility model is described below with reference to accompanying drawings.
As depicted in figs. 1 and 2, this microwave oven comprises: magnetron 100, rectifier 200 and transformer 300.
Fig. 1 is the schematic diagram of transformer 300 in microwave oven of the present utility model, and with reference to Fig. 1, this transformer 300 comprises: iron core 310, armature winding 320, secondary Filament Winding 330, first level high voltage winding group 341 and second subprime high pressure winding 342.
Specifically, armature winding 320 is wound on iron core 310.Armature winding 320 connects electric network sources, will produce induced field on iron core 310 at the armature winding 320 of coiling on iron core 310, generates magnetic circuit on iron core 310.
First time level high voltage winding group 341 is wound on iron core 310, and second subprime high pressure winding 342 also is wound on iron core 310.First time level high voltage winding group 341 has the first port one and the second port 2, and second subprime high pressure winding 342 has the 3rd port 3 and the 4th port 4, and wherein the first port one and the 3rd port 3 are Same Name of Ends.At least one of first level high voltage winding group 341 and second subprime high pressure winding 342 and rectifier 200 couplings.
According to microwave oven of the present utility model, increased second subprime high pressure winding 342 in transformer 300.Thus, make transformer 300 have multichannel output, to export the voltage of different magnitudes of voltage or out of phase, make the output voltage of transformer 300 satisfy the requirement of different operating modes, promoted the performance of transformer 300.In addition, can also make the microwave oven that adopts transformer 300 satisfy full-wave rectification to the requirement of multichannel output and phase place, increase the practicality of microwave oven, improve the efficiency of heating surface of microwave oven.
Advantageously, the second port 2 is connected with the 3rd port 3 and ground connection, and the first port one and the 4th port 4 are coupled with rectifier 200 respectively.Thus, the first port one and the 4th port 4 are exported respectively the voltage of opposite phase, the operating voltage of the microwave oven of increase, the requirement of multichannel output and phase place when making microwave oven satisfy full-wave rectification.
Certainly, also the first port one can be connected with the 4th port 4 and ground connection, and the second port 2 and the 3rd port 3 are coupled with rectifier 200 respectively.This is understandable for those of ordinary skill in the art.
Due to the half-wave voltage-doubler rectifier have simple in structure, the power output advantages of higher.In a concrete example of the present utility model, rectifier 200 adopts two half-wave voltage-doubler rectifiers.Certainly; adopting the half-wave voltage-doubler rectifier is only that one of the present utility model is illustrated, and is not limitation of the utility model, and uses other rectifiers of the prior art; also in protection range of the present utility model, this is understandable for those of ordinary skill in the art.
As shown in Figure 2, any one in two half-wave voltage multiplying rectifiers includes electric capacity and two diodes.Particularly, the first end of the first capacitor C 1 of the first half-wave voltage multiplying rectifier 201 is connected with the first port one, the second end of the first capacitor C 1 is connected with the first end of the first diode D1 of the first half-wave voltage multiplying rectifier 201 and the second end of the second diode D2 respectively, the first end of the second diode D2 and magnetron 100 couplings.The first end of the second capacitor C 1 of the second half-wave voltage multiplying rectifier 202 is connected with the 4th port 4, the second end of the second capacitor C 2 is connected with the first end of the 3rd diode D3 of the second half-wave voltage multiplying rectifier 202 and the second end of the 4th diode D4 respectively, the first end of the 4th diode D4 respectively with the first end coupling of magnetron 100 and the second diode D2.The second end of the first diode D1 is connected with the second end of the 3rd diode D3 and ground connection.
Thus, the second port 2 connects and ground connection with the 3rd port 3, the first port one and the 4th port 4 voltage that the output size is identical and phase sequence is opposite.The first half-wave voltage multiplying rectifier 201 is connected with the first port one, when the positive half wave that the first port one of transformer is exported, the first port one of transformer 300 boosts one times by the first half-wave voltage multiplying rectifier 201, when the first negative half-wave of port one output of transformer 300, the negative high voltage electricity of stack and magnetron 100 couplings; When the 4th port 4 output positive half wave of transformer, the 4th port 4 of transformer 300 boosts one times by the second half-wave voltage multiplying rectifier 202, when the 4th port 4 negative half-wave of output of transformer 300, and the negative high voltage electricity of stack and magnetron 100 couplings.Thereby realize the work of magnetron all-wave, promoted the efficiency of heating surface of microwave oven.
In the description of this specification, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present utility model or example in conjunction with specific features, structure, material or the characteristics of this embodiment or example description.In this manual, the schematic statement of above-mentioned term not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or characteristics can be with suitable mode combinations in any one or more embodiment or example.
Although the above has illustrated and has described embodiment of the present utility model, be understandable that, above-described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art is not in the situation that break away from principle of the present utility model and aim can change above-described embodiment, modification, replacement and modification in scope of the present utility model.
Claims (7)
1. a transformer that is used for microwave oven, is characterized in that, comprising:
Iron core;
Armature winding, described armature winding are wound on described iron core;
Secondary Filament Winding, described secondary Filament Winding is wound on described iron core; With
The first and second secondary high pressure windings, described the first and second secondary high pressure windings all are wound on described iron core, described first level high voltage winding group has the first and second ports and described second subprime high pressure winding has the third and fourth port, and the wherein said first and the 3rd port is Same Name of Ends.
2. the transformer for microwave oven according to claim 1, is characterized in that, described first is connected with the 3rd port or described second is connected with the 4th port.
3. the transformer for microwave oven according to claim 1, is characterized in that, described the second port is connected with described the 3rd port and ground connection.
4. the transformer for microwave oven according to claim 1, is characterized in that, the output voltage of described first level high voltage winding group is identical with the output voltage size of second subprime high pressure winding.
5. a microwave oven, is characterized in that, comprising:
Magnetron and rectifier; And
Transformer, described transformer comprises:
Iron core;
Armature winding, described armature winding are wound on described iron core;
Secondary Filament Winding, described secondary Filament Winding are wound on described iron core and described secondary Filament Winding and described magnetron are coupled supply with filament voltage for described magnetron; With
The first and second secondary high pressure windings, described the first and second secondary high pressure windings all are wound on described iron core, described first level high voltage winding group has the first and second ports and described second subprime high pressure winding has the third and fourth port, the wherein said first and the 3rd port is Same Name of Ends, at least one of described the first and second secondary high pressure windings and the coupling of described rectifier.
6. microwave oven according to claim 5, is characterized in that, described the second port be connected with the 3rd port and ground connection and described the first port and the 4th port respectively with described rectifier coupling.
7. microwave oven according to claim 6, is characterized in that, described rectifier is two half-wave voltage-doubler rectifiers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220630266 CN202977128U (en) | 2012-11-23 | 2012-11-23 | Microwave oven and transformer thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220630266 CN202977128U (en) | 2012-11-23 | 2012-11-23 | Microwave oven and transformer thereof |
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| Publication Number | Publication Date |
|---|---|
| CN202977128U true CN202977128U (en) | 2013-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220630266 Expired - Fee Related CN202977128U (en) | 2012-11-23 | 2012-11-23 | Microwave oven and transformer thereof |
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| Country | Link |
|---|---|
| CN (1) | CN202977128U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105428038A (en) * | 2016-01-12 | 2016-03-23 | 南通富力机电设备有限责任公司 | Main transformer for multifunctional machine |
-
2012
- 2012-11-23 CN CN 201220630266 patent/CN202977128U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105428038A (en) * | 2016-01-12 | 2016-03-23 | 南通富力机电设备有限责任公司 | Main transformer for multifunctional machine |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20211123 |