CN108389702A - Transformer, for electric installation and microwave cooking electric appliance - Google Patents

Abstract

The invention discloses a kind of transformer, for electric installation and microwave cooking electric appliance.Transformer includes armature winding and secondary windings.Secondary windings is separated with armature winding.The winding width of armature winding is more than the stack height of armature winding.The winding width of secondary windings is less than the stack height of secondary windings.In transformer in the above embodiment, since the winding width of armature winding is more than the stack height of armature winding, and the winding width of secondary windings is less than the stack height of secondary windings, but also the structure simplification and miniaturization of transformer while enabling transformer to be maintained at a suitable coupling efficiency in this way, and the transformer of present embodiment is without carrying out wire jumper slot design, without excessively high requiring magnetic gap precision.

Description

Transformer, for electric installation and microwave cooking electric appliance

Technical field

The present invention relates to household electrical appliance technical fields, more specifically, are related to a kind of transformer, are cooked for electric installation and microwave It prepares food electric appliance.

Background technology

In the related art, transformer includes armature winding, secondary windings and Insulated winding wire pipe, armature winding and it is secondary around Group is wound on bobbin.The coupling that influence transformer is easy around line width and winding height of armature winding and secondary windings Rate.

In order to adjust suitable coupling efficiency, the relevant technologies generally by be arranged the coiling stack height of winding, winding around Line width, transformer two magnetic cores between magnetic gap be adjusted.In a kind of scheme, magnetic gap is biased to armature winding, this The cross-sectional area of sample secondary windings is larger, therefore the coiling of secondary windings is complicated in production, in order to ensure coiling effect often Need to be arranged multiple secondary rolling thread slots in primary side, the coiling of secondary windings needed when coiling between multiple secondary rolling thread slots into Row wire jumper can increase the skeleton setting difficulty and size of transformer in this way.Simultaneously as when batch production transformer, wire jumper is past It is past to need to consume more time, and then influence production efficiency.In addition, if the primary side of transformer is not provided with multiple winding slots Position is based on current production technology, is easy when coiling, around mistake, to generate corona effect, to influence the stability of transformer.Another In a kind of scheme, although the problem of there is no the secondary rolling thread slot wire jumpers of secondary windings, however, to ensure that the precision of coiling and Higher matching rate needs the position being placed on magnetic gap between armature winding and secondary windings, so as to the essence of magnetic gap The requirement of degree is high, increases production difficulty and cost.

Invention content

Embodiment of the present invention provides a kind of transformer, for electric installation and microwave cooking electric appliance.

The transformer of embodiment of the present invention includes：

Armature winding, the winding width of the armature winding are more than the stack height of the armature winding；With

The winding width of the secondary windings separated with the armature winding, the secondary windings is less than the secondary windings Stack height.

In transformer in the above embodiment, since the winding width of armature winding is more than the stacking of the armature winding Highly, and the winding width of secondary windings be less than the secondary windings stack height, so that transformer can be maintained at But also the structure of transformer is simplified and miniaturization while one suitable coupling efficiency, and the transformer of present embodiment without Wire jumper slot design need to be carried out, without excessively high requiring magnetic gap precision.

In some embodiments, the transformer includes the bobbin of insulation, and the bobbin opens up spaced list A primary winding slot and single secondary rolling thread slot, the coiling of the armature winding are wound on the primary winding slot, it is described it is secondary around The coiling of group is wound on the secondary rolling thread slot.

In some embodiments, the winding width of the stack height of the secondary windings and the secondary windings meet with Lower relational expression, 1.1<H2/W2<2.5, H2 indicate that the stack height of the secondary windings, W2 indicate the winding of the secondary windings Width.

In some embodiments, the transformer includes two to plug in magnetic core, and the bobbin includes spacer, often One end of a magnetic core is located in the bobbin and bears against the both sides opposite in the spacer.

In some embodiments, the transformer includes Filament Winding, and the bobbin offers filament coil slot, institute It states secondary rolling thread slot to be located between the filament coil slot and the primary winding slot, the coiling of the Filament Winding is wound on described Filament coil slot.

In some embodiments, the transformer includes the cap of insulation, covers the primary to the cover part Winding slot, the secondary rolling thread slot and the filament coil slot.

Embodiment of the present invention also provides a kind of for electric installation.Include rectification module and power conversion module for electric installation. Rectification module is for connecting alternating current source.Power conversion module connects the rectification module.The power conversion module includes above-mentioned The transformer of any embodiment.

In the above embodiment in electric installation, since the winding width of armature winding is more than the heap of the armature winding Folded height, and the winding width of secondary windings is less than the stack height of the secondary windings, so that it can be protected for electric installation Structure simplification and miniaturization but also transformer, and the power supply of present embodiment are held while a suitable coupling efficiency Device is without carrying out wire jumper slot design, without excessively high requiring magnetic gap precision.

In some embodiments, the power conversion module includes control module and voltage doubling rectifier module, the control Module is connected to the primary side of the transformer, and the voltage doubling rectifier module is connected to the primary side of the transformer.

Embodiment of the present invention also provides a kind of microwave cooking electric appliance.Microwave cooking electric appliance includes any of the above-described embodiment For electric installation and microwave generator, it is described to connect the microwave generator for electric installation.

In microwave cooking electric appliance in the above embodiment, since the winding width of armature winding is more than the armature winding Stack height, and the winding width of secondary windings be less than the secondary windings stack height, so that microwave cooking But also the structure of microwave cooking electric appliance is simplified and miniaturization while electric appliance can be maintained at a suitable coupling efficiency, and this The microwave cooking electric appliance of embodiment is without carrying out wire jumper slot design, without excessively high requiring magnetic gap precision.

The additional aspect and advantage of embodiments of the present invention will be set forth in part in the description, partly will be from following Description in become apparent, or the practice of embodiment through the invention is recognized.

Description of the drawings

The above-mentioned and/or additional aspect and advantage of the present invention is from combining in description of the following accompanying drawings to embodiment by change It obtains obviously and is readily appreciated that, wherein：

Fig. 1 is the schematic cross-section of the transformer of embodiment of the present invention.

Fig. 2 is the winding structure schematic diagram of the transformer of embodiment of the present invention.

Fig. 3 is the circuit diagram for electric installation of embodiment of the present invention.

Fig. 4 is the structural schematic diagram of the microwave cooking electric appliance of embodiment of the present invention.

Fig. 5 is the schematic cross-section of transformer in the related technology.

Fig. 6 is another schematic cross-section of transformer in the related technology.

Main element symbol description：

Microwave cooking electric appliance 200, transformer 100, armature winding 10, secondary windings 20, magnetic core 30, bobbin 40, primary Winding slot 42, secondary rolling thread slot 44, filament coil slot 45, spacer 46, default magnetic gap 50, Filament Winding 60, cap 70, power supply Device 110, rectification module 112, rectifier 1122, inductance 1124, the first capacitance 1126, power conversion module 114, switching tube 115, diode 1152, semiconductor element 1154, the second capacitance 1144, current detecting unit 1146, control module 1147, multiplication of voltage Rectification module 1148, the first multiplication of voltage diode 1141, the second multiplication of voltage diode 1143, third capacitance 1145, third capacitance 1149, Alternating current source 116, microwave generator 120, cavity 130, fan 150, pallet 160.

Specific implementation mode

Embodiments of the present invention are described below in detail, the example of embodiment is shown in the accompanying drawings, wherein identical or class As label indicate same or similar element or element with the same or similar functions from beginning to end.Below with reference to attached The embodiment of figure description is exemplary, and is only used for explaining the present invention, and is not considered as limiting the invention.

In the description of embodiments of the present invention, it is to be understood that term "center", " longitudinal direction ", " transverse direction ", " length Degree ", " width ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", The orientation or positional relationship of the instructions such as "outside", " clockwise ", " counterclockwise " is to be based on the orientation or positional relationship shown in the drawings, only It is embodiments of the present invention and simplified description for ease of description, does not indicate or imply the indicated device or element is necessary With specific orientation, with specific azimuth configuration and operation, therefore should not be understood as the limitation to embodiments of the present invention. In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance or implicit Indicate the quantity of indicated technical characteristic." first " is defined as a result, the feature of " second " can be expressed or impliedly wrap Include one or more feature.In the description of embodiments of the present invention, the meaning of " plurality " is two or two More than, unless otherwise specifically defined.

In the description of embodiments of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, may be a detachable connection or one Connect to body；Can be directly connected, can also indirectly connected through an intermediary, can be connection inside two elements or The interaction relationship of two elements.For the ordinary skill in the art, can understand as the case may be above-mentioned The concrete meaning of term in embodiments of the present invention.

In embodiments of the present invention unless specifically defined or limited otherwise, fisrt feature second feature it "upper" or "lower" may include that the first and second features are in direct contact, can also include the first and second features not be directly to connect It touches but passes through the other characterisation contact between them.Moreover, fisrt feature second feature " on ", " top " and " on Face " includes fisrt feature right over second feature and oblique upper, or to be merely representative of fisrt feature level height special higher than second Sign.Fisrt feature second feature " under ", " lower section " and " below " include fisrt feature immediately below second feature and obliquely downward Side, or be merely representative of fisrt feature level height and be less than second feature.

Following disclosure provides many different embodiments or example is used for realizing embodiments of the present invention not Same structure.In order to simplify the disclosure of embodiments of the present invention, hereinafter the component of specific examples and setting are described.When So, they are merely examples, and is not intended to limit the present invention.In addition, embodiments of the present invention can be in different examples Repeat reference numerals and/or reference letter in son, this repetition are for purposes of simplicity and clarity, itself not indicate to be begged for By the relationship between various embodiments and/or setting.In addition, the various specific techniques that embodiments of the present invention provide With the example of material, but make those of ordinary skill in the art may realize that the application of other techniques and/or other materials With.

Referring to Fig. 1, embodiment of the present invention provides a kind of transformer 100.Transformer 100 include armature winding 10 and time Grade winding 20.Secondary windings 20 is separated with armature winding 10.The winding width W1 of armature winding 10 is more than the heap of armature winding 10 Folded height H1, i.e. W1>H1.The winding width W2 of secondary windings 20 is less than the stack height H2, i.e. W2 of secondary windings 20<H2.

In transformer 100 in the above embodiment, since the winding width W1 of armature winding 10 is more than armature winding 10 Stack height H1, and the winding width W2 of secondary windings 20 be less than armature winding 10 stack height H1, so that become But also the structure of transformer 100 is simplified and miniaturization while depressor 100 can be maintained at a suitable coupling efficiency, and this The transformer 100 of embodiment is without carrying out wire jumper slot design, without the magnetic gap precision for excessively high requiring transformer 100.

Specifically, transformer 100 includes two magnetic cores 30 to inserting, on the one hand, the magnetic gap width between two magnetic cores 30 The coupling efficiency of transformer 100 is influenced, on the other hand, transformer 100 is easy to influence transformer 100 around line width and winding height Coupling efficiency, transformer 100 during use, coupling efficiency preferably stablize between 0.5-1.2.

In the related technology at one, referring to Fig. 5, transformer 300 is by armature winding 1, secondary windings 2 and heater winding 3 are constituted.It is provided with magnetic gap 5 between two magnetic cores 4.Armature winding 1, secondary windings 2 and heater winding 3 are arranged in transformer In 300 width direction, i.e., arranged on the left and right directions of Fig. 5.The winding transverse width (W1) and armature winding 1 of armature winding 1 The relationship of stack height (H1) be：W1≥H1.The winding transverse width (W2) of secondary windings 2 and the stacking of secondary windings 2 are high Degree (H2) relationship be：W2≥H2.In the example of hgure 5, due to the cross-sectional area of the winding transverse width (W2) of secondary windings 2 It is larger, therefore coiling is complex when producing, for ensure coiling effect generally require to be configured multiple winding slot positions 9 and Complete to need to carry out when coiling wire jumper to the continuation coiling of another winding slot position 9 in one winding slot position 9.On the one hand increase in this way and becomes Difficulty is arranged in the skeleton of depressor 300, on the other hand, when due to batch production, when wire jumper when generally requires to consume more Between, and then affect the production efficiency of transformer 300.In addition, if being not provided with multiple winding slot positions 9, based on production work at present Skill is easy when coiling, around dislocation, to generate corona effect, to influence the stability of transformer 300.

Another in the related technology, referring to Fig. 6, transformer 400 by armature winding 1, secondary windings 2 and heater around Group 3 is constituted.It is provided with magnetic gap 5 between two magnetic cores 4.Armature winding 1, secondary windings 2 and heater winding 3 are arranged in transformer In 300 width direction, i.e., arranged on the left and right directions of Fig. 6.The winding transverse width (W1) of armature winding 1 and armature winding The relationship of stack height (H1) is：H1 ＞ W1.The stack height of winding transverse width (W2) and primary and secondary winding of secondary windings 2 (H2) relationship is：H2 ＞ W2.In the example of fig. 6, although the cross-sectional area of armature winding 1 and secondary windings 2 is smaller and nothing Corresponding multiple slot positions need to be set and is not in around wrong phenomenon, still, when the winding transverse width (W1) and secondary of armature winding 1 When the winding transverse width (W2) of winding 2 all reduces, magnetic gap 5 needs progress direct proportion accordingly to adjust, to the precision to magnetic gap 5 It is required that high.Therefore, magnetic gap 5 is put in medium position between armature winding 1 and secondary windings 2 by the transformer of Fig. 6, is reached herein Higher matching efficiency, while decreasing the Adjustment precision of magnetic gap 5.But such structure has the difficulty of specification production precision Problem.

In addition, in such as transformer of Fig. 6, since the stack height H1 of armature winding 1 is relatively high, and H1>W1 makes in this way The voltage difference obtained between the minimum wire winding layer and highest wire winding layer of armature winding 1 is larger, is easy to cause armature winding in this way Dielectric breakdown, to reduce the service life of transformer.And in the transformer of embodiment of the present invention 100, due to H1< W1, so that H1 is smaller, it is not easy to which there is a phenomenon where dielectric breakdowns, specifically, referring to Fig. 2, in an embodiment In, the voltage of the most bottom wire winding layer L1 wire winding layers of coiling group is 0, with the raising of the number of plies, such as from L1->L2->L3->L4-> L5->L6->L7->L8->L9->The voltage of L10, wire winding layer gradually increase, since H1 is smaller so that L1 wire winding layers and highest around Voltage difference between line layer L10 wire winding layers is smaller, then does not allow it is easier that there is a phenomenon where dielectric breakdown between each wire winding layer, Be conducive to improve the service life of transformer 100.

In addition, in the present embodiment, referring to Fig. 1, magnetic gap 50 is biased to armature winding 10, so that transformer 100 Coupling efficiency be easily adjusted, and the coupling efficiency of transformer 100 can be stablized 0.5 to 1.2 or so, so that transformer 100 can meet performance demand, and relatively low to the required precision of magnetic gap, and such structure has met Current specifications life Precision is produced, production difficulty and cost are reduced.

Further more, in the present embodiment, since the stacking that the winding width W2 of secondary windings 20 is less than secondary windings 20 is high H2 is spent, in this way in the structure design of transformer 100, the cross-sectional area of secondary windings 20 is smaller, and present embodiment Wire jumper need not be carried out when secondary windings coiling, so that the structure of transformer is simplified and minimizes, and can be reduced simultaneously Production difficulty and improve production efficiency.

Further, referring to Fig. 1, in some embodiments, transformer 100 includes the bobbin 40 of insulation, coiling Pipe 40 opens up spaced single primary winding slot 42 and single secondary rolling thread slot 44, the coiling of armature winding 10 be wound on it is primary around The coiling of wire casing 42, secondary windings 20 is wound on secondary rolling thread slot 44.

In this way, the winding of the transformer 100 of present embodiment need not carry out wire jumper when carrying out coiling, so as to drop The production difficulty and raising production efficiency of low transformer 100..

Specifically, relative to Fig. 5, in the present embodiment, bobbin 40 only opens up single secondary rolling thread slot 44, and makes It must be wound on the stack height H2 for being less than secondary windings 20 around line width W2 of the secondary windings 20 on secondary rolling thread slot 44, existed in this way Maintain the voltage difference between the wire winding layer of secondary windings 20 in suitable range while, can make the knot of transformer 100 Structure is simplified and minimizes, and need not carry out wire jumper when coiling, can reduce the difficulty of production in this way, improves production efficiency. It should be noted that although 100 secondary windings of transformer only opens up single secondary rolling thread slot 44 in the present embodiment, originally The design of embodiment can overcome the problems, such as in production technology so that the transformer 100 of present embodiment remains to meet technique On requirement and performance requirement.

In some embodiments, the winding width W2 of the stack height H2 of secondary windings 20 and secondary windings 20 meet with Lower relational expression, 1.1<H2/W2<2.5, H2 indicate that the stack height of secondary windings 20, W2 indicate the winding width of secondary windings 20.

So, so that secondary windings 20 disclosure satisfy that the demand of the performance of transformer 100.

It is appreciated that since the stack height H2 of secondary windings 20 and the winding width W2 of secondary windings 20 meet with ShiShimonoseki It is formula, 1.1<H2/W2<2.5, so that the voltage difference between each wire winding layer of secondary windings 20 can maintain a conjunction Suitable range.Preferably, the stack height H2 of secondary windings 20 can be 1.2 to 2 times of the winding width W2 of secondary windings 20.It needs It is noted that in actual production, specific numerical value or numberical range can be obtained according to the magnetic gap precision of production line. It, can be with if W2's needs to be designed smaller in the case where keeping the ratio of H2 and W2 to meet between 1.1 and 2.5 Magnetic gap is designed smaller, but to the required precision of magnetic gap with regard to relatively high.Likewise, meeting in the ratio for keeping H2 and W2 In the case of between 1.1 and 2.5, if W2's needs to be designed bigger, magnetic gap can be designed bigger, still To the required precision of magnetic gap with regard to relatively low.

Referring to Fig. 1, in some embodiments, transformer 100 includes two magnetic cores 30 to inserting, bobbin 40 includes One end of spacer 46, each magnetic core 30 is located in bobbin 40 and bears against the both sides opposite in spacer 46.

In this way, by spacer 46 so that two disclosure satisfy that default magnetic gap 50 to plug in magnetic core 30, so that transformation The coupling efficiency of device 100 is able to maintain that in suitable range.

Specifically, two bear against the both sides opposite in spacer 46 to plug in magnetic core 30, so that two magnetic cores Default magnetic gap 50 can be formed between 30, so that the magnetic gap of transformer 100 can satisfy the use demand.It should be noted that The quantity of spacer 46 can be two, and a spacer 46 is used to separate one end of two magnetic cores 30, another spacer 46 The other end for separating two magnetic cores 30.

In some embodiments, transformer 100 includes Filament Winding 60, and bobbin 40 offers filament coil slot 45, Secondary rolling thread slot 44 is located between filament coil slot 45 and primary winding slot 42, and the coiling of Filament Winding 60 is wound on filament coil slot 45.In this way, external microwave generator can be connected by Filament Winding 60, so as to power to microwave generator.

In some embodiments, transformer 100 includes the cap 70 of insulation, and cap 70 partly covers primary winding slot 42, secondary rolling thread slot 44 and filament coil slot 45.In this way, cap 70 plays the role of protecting magnetic core 30, it is simple in structure.

Referring to Fig. 3, embodiment of the present invention also provide it is a kind of for electric installation 110.Include rectification module for electric installation 110 112 and power conversion module 114.Rectification module 112 connects alternating current source 116.Power conversion module 114 connects rectification module 112. Power conversion module 114 includes the transformer 100 of any of the above-described embodiment.

The above embodiment in electric installation 110, since the winding width W1 of armature winding 10 is more than armature winding 10 Stack height H1, and the winding width W2 of secondary windings 20 be less than armature winding 10 stack height H1, so that supply While electric installation 110 can be maintained at a suitable coupling efficiency but also for the structure of electric installation 110 is simplified and miniaturization, and And present embodiment for electric installation 110 without carrying out wire jumper slot design, without excessively high requiring magnetic gap precision.

Specifically, rectification module 112 includes rectifier 1122, inductance 1124 and the first capacitance 1126.Rectification module 112 can DC voltage is converted to the alternating voltage for generating alternating current source 116.It should be noted that in one example, alternating current source 116 For alternating current, the alternating voltage generated is about 220V, and frequency is about 50HZ.It is appreciated that rectification module 112 also can be used The circuit of other forms and be not limited to be made of rectifier 1122, inductance 1124, capacitance.Power conversion module 114 includes switch Pipe 115, the second capacitance 1144 and current detecting unit 1146, one end connection transformer 100 of the first capacitance 1126 it is primary around 10 one end of group, the other end connect current detecting unit 1146.One end of one end connection 1126 of second capacitance 1144 and transformation One end of the armature winding 10 of device 100, the other end connect the other end and switching tube 115 of the armature winding 10 of transformer 100 Collector.Power conversion module 114 is used to increase the output power of transformer 100.

In some embodiments, power conversion module 114 includes control module 1147 and voltage doubling rectifier module 1148, control Molding block 1147 is connected to the primary side of transformer 100, and voltage doubling rectifier module 1148 is connected to the primary side of transformer 100.

Specifically, control module 1147 is used to detect alternating current source 116 to obtain detection signal, and according to detection signal Control the switching frequency of switching tube 115.It should be pointed out that detection signal can be the voltage and transformer 100 of AC power 116 Operating current.Control module 1147 can generate corresponding pulse-width signal (PWM, Pulse according to the detection signal of detection Width Modulation), and the turn-on time of switching tube 115 is controlled according to pulse-width signal, to change switching tube 115 switching frequency.It should be noted that in one example, pulse-width signal is the arteries and veins that each pulse width is equal Punching, the period by changing spike train can adjust output frequency, and output electricity can be adjusted by changing the width of pulse or duty ratio Pressure, that is to say, that voltage can be made to change with frequency coordination using suitable control method, so as to the week by adjusting PWM Phase, PWM duty ratio and achieve the purpose that control for electric installation 110 electric current.

Voltage doubling rectifier module 1148 includes the first multiplication of voltage diode 1141, the second multiplication of voltage diode 1143, third capacitance 1145 and third capacitance 1149.First multiplication of voltage diode 1141 is separately connected the both ends of the primary side of transformer 100.Second multiplication of voltage One end of diode 1143 is connected to one end of the primary side of transformer 100, and the other end is connected to third capacitance 1149 and micro- Baud generator 120.One end of third capacitance 1149 connects one end and the microwave generator 120 of the second multiplication of voltage diode 1143.The For four capacitance connections in one end of the primary side of transformer 100, the other end is connected to third capacitance 1149.

Please refer to 4, embodiment of the present invention also provides a kind of microwave cooking electric appliance 200.Microwave cooking electric appliance 200 includes upper State the transformer 100 and microwave generator 120 of any embodiment.Microwave generator 120 connects transformer 100.

In microwave cooking electric appliance 200 in the above embodiment, since the winding width W1 of armature winding 10 is more than primary The stack height H1 of winding 10, and the winding width W2 of secondary windings 20 is less than the stack height H2 of secondary windings 20, in this way But also the structure of microwave cooking electric appliance 200 while enabling microwave cooking electric appliance 200 to be maintained at a suitable coupling efficiency Simplify and miniaturization, and the microwave cooking electric appliance 200 of present embodiment is without carrying out wire jumper slot design, without excessively high wanting Seek magnetic gap precision.

It is appreciated that the Filament Winding 45 of transformer 100 connects microwave generator 120.Specifically, microwave generator 120 It can be magnetron.Magnetron is a kind of electron tube being used for generating microwave energy.Electronics in magnetron is being mutually perpendicular to Stationary magnetic field and steady electric field control under, interact with electromagnetic field of high frequency, the output power from transformer 100 Middle acquisition energy conversion is at microwave energy, to achieve the purpose that generate microwave energy.

Specifically, microwave cooking electric appliance 200 further includes cavity 130, door body (not shown) and fan 150.It is set in cavity 130 There is pallet 160, for placing food to be heated, door body is rotatably arranged in the front of cavity 130, is used to open pallet 160 Or the opening of cavity 130 is closed, microwave generator 120 is mounted on the outside of cavity 130 with transformer 100 and is set to fan 150 blowing direction.When microwave cooking electric appliance 200 works, transformer 100 provides operating current to microwave generator 120, micro- Baud generator 120 generates the microwave energy for food in heating cavity 130.Meanwhile fan 150 is absorbable from extraneous sky Gas, and air-flow is formed, air-flow may pass through air duct conduction in transformer 100, and carry out cooling and heat dissipation to transformer 100, cold But after transformer 100, air-flow can be expelled to outside microwave cooking electric appliance 200 out of transformer 100 again.

In the description of this specification, reference term " embodiment ", " some embodiments ", " schematically implementation The description of mode ", " example ", " specific example " or " some examples " etc. means the tool described in conjunction with the embodiment or example Body characteristics, structure, material or feature are contained at least one embodiment or example of the present invention.In the present specification, Schematic expression of the above terms are not necessarily referring to identical embodiment or example.Moreover, the specific features of description, knot Structure, material or feature can be combined in any suitable manner in any one or more embodiments or example.

Expression or logic and/or step described otherwise above herein in flow charts, for example, being considered use In the order list for the executable instruction for realizing logic function, may be embodied in any computer-readable medium, for Instruction execution system, device or equipment (system of such as computer based system including processing module or other can be from instruction Execute system, device or equipment instruction fetch and the system that executes instruction) use, or combine these instruction execution systems, device or Equipment and use.For the purpose of this specification, " computer-readable medium " can be it is any can include, store, communicating, propagating or Transmission program uses for instruction execution system, device or equipment or in conjunction with these instruction execution systems, device or equipment Device.The more specific example (non-exhaustive list) of computer-readable medium includes following：With one or more wiring Electrical connection section (control method), portable computer diskette box (magnetic device), random access memory (RAM), read-only memory (ROM), erasable edit read-only storage (EPROM or flash memory), fiber device and portable optic disk is read-only deposits Reservoir (CDROM).In addition, computer-readable medium can even is that the paper that can print described program on it or other are suitable Medium, because can be for example by carrying out optical scanner to paper or other media, then into edlin, interpretation or when necessary with it His suitable method is handled electronically to obtain described program, is then stored in computer storage.

It should be appreciated that each section of embodiments of the present invention can be with hardware, software, firmware or combination thereof come real It is existing.In the above-described embodiment, multiple steps or method can use storage in memory and by suitable instruction execution system The software or firmware of execution is realized.For example, if realized with hardware, in another embodiment, ability can be used Any one of following technology or their combination well known to domain are realized：With for realizing logic function to data-signal The discrete logic of logic gates, the application-specific integrated circuit with suitable combinational logic gate circuit, programmable gate array (PGA), field programmable gate array (FPGA) etc..

Those skilled in the art are appreciated that realize all or part of step that above-described embodiment method carries Suddenly it is that relevant hardware can be instructed to complete by program, the program can be stored in a kind of computer-readable storage medium In matter, which includes the steps that one or a combination set of embodiment of the method when being executed.

In addition, each functional unit in various embodiments of the present invention can be integrated in a processing module, also may be used To be that each unit physically exists alone, can also two or more units be integrated in a module.It is above-mentioned integrated The form that hardware had both may be used in module is realized, can also be realized in the form of software function module.The integrated module If being realized in the form of software function module and when sold or used as an independent product, a calculating can also be stored in In machine read/write memory medium.

Storage medium mentioned above can be read-only memory, disk or CD etc..

Although embodiments of the present invention have been shown and described above, it is to be understood that the above embodiment is Illustratively, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be right Above-mentioned implementation implementation is changed, changes, replacing and modification.

Claims (9)

1. a kind of transformer, which is characterized in that including：

Armature winding, the winding width of the armature winding are more than the stack height of the armature winding；With

The secondary windings separated with the armature winding, the winding width of the secondary windings are less than the stacking of the secondary windings Highly.

2. transformer as described in claim 1, which is characterized in that the transformer includes the bobbin of insulation, the coiling Pipe opens up spaced single primary winding slot and single secondary rolling thread slot, the coiling of the armature winding be wound on it is described it is primary around The coiling of wire casing, the secondary windings is wound on the secondary rolling thread slot.

3. transformer as described in claim 1, which is characterized in that the stack height of the secondary windings and the secondary windings Winding width meet following relationship, 1.1<H2/W2<2.5, H2 indicate that the stack height of the secondary windings, W2 indicate institute State the winding width of secondary windings.

4. transformer as claimed in claim 2, which is characterized in that the transformer includes two to plug in magnetic core, it is described around Spool includes spacer, and one end of each magnetic core is located in the bobbin and bears against in the spacer opposite to each other Both sides.

5. transformer as claimed in claim 2, which is characterized in that the transformer includes Filament Winding, and the bobbin is opened Equipped with filament coil slot, the secondary rolling thread slot is located between the filament coil slot and the primary winding slot, the filament The coiling of winding is wound on the filament coil slot.

6. transformer as claimed in claim 5, which is characterized in that the transformer includes the cap of insulation, the cap portion Divide the ground covering primary winding slot, the secondary rolling thread slot and the filament coil slot.

7. a kind of for electric installation, which is characterized in that including：

Rectification module for connecting alternating current source；With

Connect the power conversion module of the rectification module；The power conversion module includes described in claim any one of 1-6 Transformer.

8. as claimed in claim 7 for electric installation, which is characterized in that the power conversion module includes control module and multiplication of voltage Rectification module, the control module are connected to the primary side of the transformer, and the voltage doubling rectifier module is connected to the transformation The primary side of device.

9. a kind of microwave cooking electric appliance, which is characterized in that sent out for electric installation and microwave including claim 7-8 any one of them Raw device, it is described to connect the microwave generator for electric installation.