CN203800840U - Frequency converter and microwave oven - Google Patents
Frequency converter and microwave oven Download PDFInfo
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- CN203800840U CN203800840U CN201420171149.1U CN201420171149U CN203800840U CN 203800840 U CN203800840 U CN 203800840U CN 201420171149 U CN201420171149 U CN 201420171149U CN 203800840 U CN203800840 U CN 203800840U
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- 229910052710 silicon Inorganic materials 0.000 claims description 12
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- 235000013305 food Nutrition 0.000 description 3
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Abstract
The utility model is a frequency converter and a microwave oven. The frequency converter comprises: a booster circuit, which is connected between a direct-current power supply and a switching circuit and is used for raising the voltage of the direct-current power supply; the switching circuit, which is connected between the booster circuit and a first inverter circuit and is used for controlling the connection or disconnection of the switching circuit to change the frequency of the voltage outputted by the booster circuit; the first inverter circuit, which is connected between the switching circuit and a voltage doubling circuit and is used for converting the direct-current voltage outputted by the switching circuit into an alternating-current voltage; and the voltage doubling circuit, which is connected to the first inverter circuit and is used for boosting the alternating-current voltage outputted by the first inverter circuit by the predetermined multiple to drive a load for working. In addition, the microwave oven includes the frequency converter. According to the technical scheme, stability of the voltage inversion process is improved; and the power loss of the inverter is reduced without using the inverter and thus the cost is lowered.
Description
Technical field
The utility model relates to microwave oven technical field, in particular to a kind of frequency converter and a kind of microwave oven.
Background technology
Along with growth in the living standard, people's life is come in self-driving tourism gradually, various self-driving travel products emerge in an endless stream, wherein, vehicle-carried microwave stove makes the people also can cooking food in the time of out on tours, avoid the food of eating buffet, eating barbecue, vehicle-carried microwave furnace volume is little simultaneously, is convenient for carrying.
Fig. 1 is the structural representation of vehicle-carried microwave stove operation principle, vehicle-mounted inverter 104 accesses the power interface of automobile storage battery 102, the 12V direct voltage that automobile storage battery 102 is provided changes the alternating current of 220V, 50Hz into, the be converted to into-4000V of alternating current of the low pressure low frequency that the frequency converter 1062 in microwave oven 106 is exported inverter 104, the work that 50KHz high voltagehigh frequency alternating current drives magnetron 1064 in microwave oven 106, to produce the microwave energy that is applicable to food heating of 2450MHz.Wherein, inverter 104 provides the alternating current of 220V to use to vehicle-carried microwave stove 106, and inverter 104 can consume a part of electric power in when work itself, causes power loss, and inverter 104 occupies interior space, uses loaded down with trivial detailsly, affect user's experience.
Existing vehicle-mounted inverter can be divided into following two kinds by the waveform of output current, and one is square wave output type, and this kind of inverter may produce peak voltage, cause inverter to burn, and load capacity is poor, likely damage the electrical equipment using, but cheap; Another kind is sinewave output type, and efficiency is high, and noise is little, working stability, but price is high.
Therefore, how to reduce the stability that the cost of inverter and power consumption improve inverter work simultaneously and become technical problem urgently to be resolved hurrily at present.
Utility model content
The utility model is intended at least solve one of technical problem existing in prior art or correlation technique.
For this reason, an object of the present utility model is to have proposed one does not need inverter, can directly use the frequency converter of DC power supply.
Another object of the present utility model is to have proposed a kind of microwave oven.
For achieving the above object, according to the embodiment of first aspect of the present utility model, propose a kind of frequency converter, having comprised: booster circuit, has been connected between DC power supply and switching circuit, for the voltage of the described DC power supply that raises; Described switching circuit, is connected between described booster circuit and the first inverter circuit, by controlling conducting or the cut-off of described switching circuit, to change the frequency of voltage of described booster circuit output; Described the first inverter circuit, is connected between described switching circuit and voltage-multiplying circuit, for the direct voltage of described switching circuit output is converted to alternating voltage; Described voltage-multiplying circuit, is connected to described the first inverter circuit, for predetermined multiple that the described alternating voltage of described the first inverter circuit output is raise, to drive loaded work piece.
According to the frequency converter of embodiment of the present utility model, boost by the voltage to DC power supply, and by controlling conducting or the cut-off of the switching circuit being connected with booster circuit, directly the direct voltage after boosting is carried out to frequency inverted, realize the frequency conversion to direct voltage, compared with carrying out frequency conversion with the alternating current of in prior art, inverter being exported, the peak voltage of having avoided inverter to produce burns inverter even damages the problem of made electrical appliance, the direct voltage of the different frequency to switching circuit output carries out inversion simultaneously, after rising prearranged multiple, directly drive loaded work piece, compared with driving load with the mode that needs inverter to combine with frequency converter in prior art, do not need inverter, save the shared space of inverter.
In addition, according to the frequency converter of the utility model above-described embodiment, can also there is following additional technical characterictic:
According to an embodiment of the present utility model, described booster circuit is DC voltage booster circuit, and the voltage of described DC power supply output is promoted to scheduled voltage.
According to the frequency converter of embodiment of the present utility model, directly the voltage of DC power supply output is promoted to scheduled voltage (for example: the direct voltage that the direct voltage of 12V is promoted to 311V) by DC voltage booster circuit, circuit structure is simple, cost is lower and directly the little conversion efficiency of change-over circuit loss is higher.
According to an embodiment of the present utility model, described DC voltage booster circuit is boost chopper, comprising: the first inductance, diode, the second inductance, the first electric capacity that are connected in series with described DC power supply; Second electric capacity in parallel with described DC power supply; Transistor, described transistor one end is connected between described the first inductance and described diode, and the other end is connected with the negative pole of described DC power supply; The 3rd electric capacity, described the 3rd electric capacity one end is connected between described diode and described the second inductance, and the other end is connected with the negative pole of described DC power supply; At least one resistance being connected with the first Capacitance parallel connection, wherein, described at least one resistance is connected in series and/or is connected in parallel.
According to the frequency converter of embodiment of the present utility model, specifically, DC voltage booster circuit can adopt boost chopper, when promoting DC power supply voltage, can also adopt PWM(Pulse Width Modulation, pulse width modulation) technology changes the pulse duty factor of direct voltage, and make the voltage of output there is good stability, and can regulate by PWM technology the size of the duty cycle adjustment scheduled voltage of direct voltage.
According to an embodiment of the present utility model, described booster circuit comprises: the second inverter circuit, be connected to described DC power supply, and be the alternating current that voltage effective value equals described scheduled voltage for the voltage transitions that described DC power supply is exported; Rectification circuit, is connected between described the second inverter circuit and described switching circuit, for the alternating current of described the second inverter circuit output is carried out to rectification, to obtain the direct current of described scheduled voltage.
According to the frequency converter of embodiment of the present utility model, the mode that booster circuit can also adopt the second inverter circuit and rectification circuit to combine, specifically, be the alternating current of 220V, 50Hz by the voltage transitions of DC power supply by the second inverter circuit, then by rectification circuit, the alternating current of inversion conversion carried out rectification and can be obtained the direct current of scheduled voltage.
According to an embodiment of the present utility model, described rectification circuit is specially controllable silicon rectifying bridge, uses the alternating current of the second inverter circuit output described in controllable silicon diode pair to carry out rectification, to obtain the direct current of described scheduled voltage.
According to the frequency converter of embodiment of the present utility model, carry out rectification by the alternating current that adopts the second inverter circuit output of controllable silicon diode pair, make the rectification of alternating current be subject to diode and the dual control of silicon controlled, simultaneously by regulating silicon controlled ON time can regulate the duty ratio of the direct voltage obtaining after rectification, regulate the size of scheduled voltage, output voltage stabilization, controls convenient, flexible.
According to an embodiment of the present utility model, described switching circuit comprises transistor and/or the field effect transistor of multiple serial or parallel connections.
According to the frequency converter of embodiment of the present utility model, switching circuit adopts the electronic switch array of transistor and/or field effect transistor composition, be adjustable direct voltage frequency by the frequency of control switch, direct voltage is carried out to frequency conversion, with in prior art, alternating current is carried out compared with frequency conversion, can avoid the peak voltage that inverter produces to damage inverter, cost is lower simultaneously, and circuit structure is simple.Specifically, transistor and/or field effect transistor can be: diode, triode and IGBT pipe (Insulated Gate Bipolar Transistor, insulating gate type bipolar transistor).
According to an embodiment of the present utility model, described the first inverter circuit, comprising: the first transistor and transistor seconds, be connected in series with the output of described switching circuit, and receive the direct voltage of described switching circuit output; The 3rd transistor and the 4th transistor, be connected in parallel with described the first transistor and described transistor seconds after series connection; Transformer, the first end of described transformer is connected between described the first transistor and described transistor seconds, the second end of described transformer is connected between described the 3rd transistor and described the 4th transistor, and is connected with inductance and electric capacity between the first output of described transformer and the second output; The output of described the first inverter circuit is connected with described Capacitance parallel connection.
According to the frequency converter of embodiment of the present utility model, by the first inverter circuit, the direct voltage after switching circuit changes frequency is converted to alternating current, be converted to and drive the needed alternating voltage of load (or voltage-multiplying circuit), because the input direct voltage of the first inverter circuit has good stability, therefore, can effectively avoid inverter directly to connect frequency converter time, peak voltage damages the situation of inverter and the electrical appliance that makes.
Certainly, one skilled in the art will appreciate that the second inverter circuit also can use the circuit structure identical with the first inverter circuit.
According to an embodiment of the present utility model, described voltage-multiplying circuit, comprising: at least one group of electric capacity and the diode in parallel with described the first inverter circuit output, and with predetermined multiple that the described alternating voltage of described the first inverter circuit output is raise.
According to the frequency converter of embodiment of the present utility model, the multiple that voltage-multiplying circuit can raise to alternating voltage is as required selected the quantity of electric capacity and diode in parallel, certainly, needs the multiple of rising more, needs electric capacity and diode in parallel more.
According to an embodiment of the present utility model, described DC power supply comprises: automobile storage battery and/or solar cell.
According to the frequency converter of embodiment of the present utility model, DC power supply can be automobile storage battery, meets vehicle-mounted use, also can adopt the solar cell of more energy-conserving and environment-protective as DC power supply, energy savings simultaneously.
According to the embodiment of the utility model second aspect, a kind of microwave oven has been proposed, comprising: the frequency converter in above-described embodiment described in any one; Magnetron, is connected to described frequency converter, produces the microwave energy that is suitable for heating.
According to the microwave oven of embodiment of the present utility model, in microwave oven, add frequency converter, make microwave oven not need to connect inverter and get final product on-line operation, also be that microwave oven can directly use DC power supply (automobile storage battery or solar cell) to power, reduced the shared space of inverter, adopt the mode to direct voltage frequency conversion, circuit structure is simple, cost is lower, and direct voltage has good stability and can effectively avoid producing peak voltage, thereby avoids damaging microwave oven.
Additional aspect of the present utility model and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present utility model.
Brief description of the drawings
Above-mentioned and/or additional aspect of the present utility model and advantage accompanying drawing below combination is understood becoming the description of embodiment obviously and easily, wherein:
Fig. 1 shows the structural representation of vehicle-carried microwave stove operation principle in correlation technique;
Fig. 2 A to 2C shows according to the structural representation of the frequency converter of embodiment of the present utility model;
Fig. 3 shows according to the structural representation of the boost chopper of embodiment of the present utility model;
Fig. 4 shows according to the structural representation of the first inverter circuit of embodiment of the present utility model;
Fig. 5 shows according to the structural representation of the voltage-multiplying circuit of embodiment of the present utility model.
Embodiment
In order more clearly to understand above-mentioned purpose of the present utility model, feature and advantage, below in conjunction with the drawings and specific embodiments, the utility model is further described in detail.It should be noted that, in the situation that not conflicting, the feature in the application's embodiment and embodiment can combine mutually.
A lot of details are set forth in the following description so that fully understand the utility model; but; the utility model can also adopt other to be different from other modes described here and implement, and therefore, protection range of the present utility model is not subject to the restriction of following public specific embodiment.
Fig. 2 A to 2C shows according to the structural representation of the frequency converter of embodiment of the present utility model.
As shown in Figure 2 A, according to the frequency converter 204 of embodiment of the present utility model, comprise: booster circuit 2042, is connected between DC power supply (automobile storage battery/solar cell 202 shown in Fig. 2 A to Fig. 2 C) and switching circuit 2044, for the voltage of the described DC power supply that raises; Described switching circuit 2044, is connected between described booster circuit 2042 and the first inverter circuit 2046, by controlling conducting or the cut-off of described switching circuit 2044, to change the frequency of the voltage that described booster circuit 2042 exports; Described the first inverter circuit 2046, is connected between described switching circuit 2044 and voltage-multiplying circuit 2048, is converted to alternating voltage for the direct voltage that described switching circuit 2044 is exported; Described voltage-multiplying circuit 2048, is connected to described the first inverter circuit 2046, for the described alternating voltage that described the first inverter circuit 2046 the is exported predetermined multiple that raises, to drive load 206 to work.
Boost by the voltage to DC power supply, and by controlling conducting or the cut-off of the switching circuit 2044 being connected with booster circuit 2042, directly the direct voltage after boosting is carried out to frequency inverted, realize the frequency conversion to direct voltage, compared with carrying out frequency conversion with the alternating current of in prior art, inverter being exported, the peak voltage of having avoided inverter to produce burns inverter even damages the problem of made electrical appliance, the direct voltage of the different frequency of simultaneously switching circuit 2044 being exported carries out inversion, after rising prearranged multiple, directly drive loaded work piece, compared with driving load with the mode that needs inverter to combine with frequency converter in prior art, do not need inverter, save the shared space of inverter.
Wherein, described booster circuit 2042 can have following two kinds of implementations:
Execution mode one
According to an embodiment of the present utility model, described booster circuit 2042 is DC voltage booster circuit 2042A, and the voltage of described DC power supply output is promoted to scheduled voltage.
As shown in Figure 2 B, directly the voltage of DC power supply output is promoted to scheduled voltage (for example: the direct voltage that the direct voltage of 12V is promoted to 311V) by DC voltage booster circuit 2042A, circuit structure is simple, cost is lower and directly the little conversion efficiency of change-over circuit loss is higher.
Describe in detail according to the boost chopper of embodiment of the present utility model below in conjunction with Fig. 3.
Fig. 3 shows according to the structural representation of the boost chopper of embodiment of the present utility model.
As shown in Figure 3, according to an embodiment of the present utility model, described DC voltage booster circuit 2042A is boost chopper, comprising: the first inductance 304, diode 306, the second inductance 308, the first electric capacity 310 that are connected in series with described DC power supply 302; Second electric capacity 312 in parallel with described DC power supply; Transistor 314, described transistor 314 one end are connected between described the first inductance 304 and described diode 306, and the other end is connected with the negative pole of described DC power supply 302; The 3rd electric capacity 316, described the 3rd electric capacity 316 one end are connected between described diode 306 and described the second inductance 308, and the other end is connected with the negative pole of described DC power supply 302; With at least one resistance 318 that the first electric capacity 310 is connected in parallel, wherein, described at least one resistance 318 is connected in series and/or is connected in parallel.
Specifically, DC voltage booster circuit 2042A can adopt boost chopper, when promoting DC power supply voltage, can also adopt PWM(Pulse Width Modulation, pulse width modulation) technology changes the pulse duty factor of direct voltage, make the voltage of output there is good stability, and can regulate by PWM technology the size of the duty cycle adjustment scheduled voltage of direct voltage.
Execution mode two
According to an embodiment of the present utility model, described booster circuit 2042 comprises: the second inverter circuit 2042B, be connected to described DC power supply, and be the alternating current that voltage effective value equals described scheduled voltage for the voltage transitions that described DC power supply is exported; Rectification circuit 2042C, is connected between described the second inverter circuit 2042B and described switching circuit 2044, for the alternating current of described the second inverter circuit 2042B output is carried out to rectification, to obtain the direct current of described scheduled voltage.
As shown in Figure 2 C, the mode that booster circuit 2042 can also adopt the second inverter circuit 2042B and rectification circuit 2042C to combine, specifically, be the alternating current of 220V, 50Hz by the voltage transitions of DC power supply by the second inverter circuit 2042B, then by rectification circuit 2042C, the alternating current of inversion conversion carried out rectification and can be obtained the direct current of scheduled voltage.
According to an embodiment of the present utility model, described rectification circuit 2042C is specially controllable silicon rectifying bridge, uses the alternating current of the second inverter circuit 2042B output described in controllable silicon diode pair to carry out rectification, to obtain the direct current of described scheduled voltage.
Carry out rectification by the alternating current that adopts the second inverter circuit 2042B output of controllable silicon diode pair, make the rectification of alternating current be subject to diode and the dual control of silicon controlled, simultaneously by regulating silicon controlled ON time can regulate the duty ratio of the direct voltage obtaining after rectification, regulate the size of scheduled voltage, output voltage stabilization, controls convenient, flexible.
According to an embodiment of the present utility model, described switching circuit 2044 comprises transistor and/or the field effect transistor of multiple serial or parallel connections.
Switching circuit 2044 adopts the electronic switch array of transistor and/or field effect transistor composition, be adjustable direct voltage frequency by the frequency of control switch, direct voltage is carried out to frequency conversion, with in prior art, alternating current is carried out compared with frequency conversion, can avoid the peak voltage that inverter produces to damage inverter, cost is lower simultaneously, and circuit structure is simple.Specifically, transistor and/or field effect transistor can be: diode, triode and IGBT pipe (Insulated Gate Bipolar Transistor, insulating gate type bipolar transistor).
Describe in detail according to the first inverter circuit of embodiment of the present utility model below in conjunction with Fig. 4.
Fig. 4 shows according to the structural representation of the first inverter circuit of embodiment of the present utility model.
As shown in Figure 4, according to an embodiment of the present utility model, described the first inverter circuit 2046, comprising: the first transistor 404 and transistor seconds 406, be connected in series with the output of described switching circuit, and receive the direct voltage 402 of described switching circuit output; The 3rd transistor 408 and the 4th transistor 410, be connected in parallel with described the first transistor 404 and described transistor seconds 406 after series connection; Transformer 412, the first end of described transformer 412 is connected between described the first transistor 404 and described transistor seconds 406, the second end of described transformer 412 is connected between described the 3rd transistor 408 and described the 4th transistor 410, and between the first output of described transformer 412 and the second output, is connected with inductance 414 and electric capacity 416; The output of described the first inverter circuit 2046 and described electric capacity 416 are connected in parallel.
By the first inverter circuit 2046, the direct voltage after switching circuit changes frequency 402 is converted to alternating current, be converted to and drive the needed alternating voltage of load (or voltage-multiplying circuit 2048), because the input direct voltage 402 of the first inverter circuit 2046 has good stability, therefore, can effectively avoid inverter directly to connect frequency converter time, peak voltage damages the situation of inverter and the electrical appliance that makes.
Certainly, one skilled in the art will appreciate that the second inverter circuit 2042B also can use the circuit structure identical with the first inverter circuit 2046.
Describe in detail according to the voltage-multiplying circuit of embodiment of the present utility model below in conjunction with Fig. 5.
Fig. 5 shows according to the structural representation of the voltage-multiplying circuit of embodiment of the present utility model.
As shown in Figure 5, according to an embodiment of the present utility model, described voltage-multiplying circuit 2048, comprise: at least one group of electric capacity in parallel with described the first inverter circuit 2046 outputs and diode (2 groups of electric capacity shown in Fig. 5 and diode, be electric capacity 504 and diode 506, diode 508 and electric capacity 510), with the described alternating voltage 502 that described the first inverter circuit 2046 the is exported predetermined multiple that raises.
The multiple that voltage-multiplying circuit 2048 can raise to alternating voltage 502 is as required selected the quantity of electric capacity and diode in parallel, certainly, needs the multiple of rising more, needs electric capacity and diode in parallel more.
According to an embodiment of the present utility model, described DC power supply comprises: automobile storage battery and/or solar cell.
DC power supply can be automobile storage battery, meets vehicle-mounted use, also can adopt the solar cell of more energy-conserving and environment-protective as DC power supply, energy savings simultaneously.
According to the embodiment of the utility model second aspect, a kind of microwave oven (not shown) has been proposed, comprising: the frequency converter 204 in above-described embodiment described in any one; Magnetron, is connected to described frequency converter 204, produces the microwave energy that is suitable for heating.
In microwave oven, add frequency converter 204, make microwave oven not need to connect inverter and get final product on-line operation, also be that microwave oven can directly use DC power supply (automobile storage battery/solar cell 202 shown in Fig. 2 A to Fig. 2 C) to power, reduce the shared space of inverter, adopt the mode to direct voltage frequency conversion, circuit structure is simple, and cost is lower, and direct voltage has good stability and can effectively avoid producing peak voltage, thereby avoid damaging microwave oven.
More than be described with reference to the accompanying drawings the technical solution of the utility model, by booster circuit is directly connected with switching circuit, make directly direct voltage to be carried out to frequency conversion, improve the stability of voltage inversion process, avoid inverter in prior art to produce the problem that peak voltage damages inverter and/or makes electrical appliance, do not use inverter can reduce the power loss of inverter, reduce costs simultaneously.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model.
Claims (10)
1. a frequency converter, is characterized in that, comprising:
Booster circuit, is connected between DC power supply and switching circuit, for the voltage of the described DC power supply that raises;
Described switching circuit, is connected between described booster circuit and the first inverter circuit, by controlling conducting or the cut-off of described switching circuit, to change the frequency of voltage of described booster circuit output;
Described the first inverter circuit, is connected between described switching circuit and voltage-multiplying circuit, for the direct voltage of described switching circuit output is converted to alternating voltage;
Described voltage-multiplying circuit, is connected to described the first inverter circuit, for predetermined multiple that the described alternating voltage of described the first inverter circuit output is raise, to drive loaded work piece.
2. frequency converter according to claim 1, is characterized in that, described booster circuit is DC voltage booster circuit, and the voltage of described DC power supply output is promoted to scheduled voltage.
3. frequency converter according to claim 2, is characterized in that, described DC voltage booster circuit is boost chopper, comprising:
The first inductance, diode, the second inductance, the first electric capacity that are connected in series with described DC power supply;
Second electric capacity in parallel with described DC power supply;
Transistor, described transistor one end is connected between described the first inductance and described diode, and the other end is connected with the negative pole of described DC power supply;
The 3rd electric capacity, described the 3rd electric capacity one end is connected between described diode and described the second inductance, and the other end is connected with the negative pole of described DC power supply;
At least one resistance being connected with the first Capacitance parallel connection, wherein, described at least one resistance is connected in series and/or is connected in parallel.
4. frequency converter according to claim 1, is characterized in that, described booster circuit comprises:
The second inverter circuit, is connected to described DC power supply, is the alternating current that voltage effective value equals scheduled voltage for the voltage transitions that described DC power supply is exported;
Rectification circuit, is connected between described the second inverter circuit and described switching circuit, for the alternating current of described the second inverter circuit output is carried out to rectification, to obtain the direct current of described scheduled voltage.
5. frequency converter according to claim 4, is characterized in that, described rectification circuit is specially controllable silicon rectifying bridge, uses the alternating current of the second inverter circuit output described in controllable silicon diode pair to carry out rectification, to obtain the direct current of described scheduled voltage.
6. frequency converter according to claim 1, is characterized in that, described switching circuit comprises transistor and/or the field effect transistor of multiple serial or parallel connections.
7. frequency converter according to claim 1, is characterized in that, described the first inverter circuit, comprising:
The first transistor and transistor seconds, be connected in series with the output of described switching circuit, receives the direct voltage of described switching circuit output;
The 3rd transistor and the 4th transistor, be connected in parallel with described the first transistor and described transistor seconds after series connection;
Transformer, the first end of described transformer is connected between described the first transistor and described transistor seconds, the second end of described transformer is connected between described the 3rd transistor and described the 4th transistor, and is connected with inductance and electric capacity between the first output of described transformer and the second output;
The output of described the first inverter circuit is connected with described Capacitance parallel connection.
8. frequency converter according to claim 1, is characterized in that, described voltage-multiplying circuit, comprising:
At least one group of electric capacity and the diode in parallel with described the first inverter circuit output, with predetermined multiple that the described alternating voltage of described the first inverter circuit output is raise.
9. frequency converter according to claim 1, is characterized in that, described DC power supply comprises: automobile storage battery and/or solar cell.
10. a microwave oven, is characterized in that, comprising:
Frequency converter as claimed in any one of claims 1-9 wherein;
Magnetron, is connected to described frequency converter, produces the microwave energy that is suitable for heating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420171149.1U CN203800840U (en) | 2014-04-08 | 2014-04-08 | Frequency converter and microwave oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420171149.1U CN203800840U (en) | 2014-04-08 | 2014-04-08 | Frequency converter and microwave oven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203800840U true CN203800840U (en) | 2014-08-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420171149.1U Expired - Lifetime CN203800840U (en) | 2014-04-08 | 2014-04-08 | Frequency converter and microwave oven |
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| Country | Link |
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| CN (1) | CN203800840U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108063557A (en) * | 2018-01-11 | 2018-05-22 | 国安奇纬光电新材料有限公司 | A kind of light modulation film inverter |
| CN108806358A (en) * | 2018-05-21 | 2018-11-13 | 阮晓萍 | A kind of hung intelligent multimedia teaching system |
| CN109079521A (en) * | 2018-08-30 | 2018-12-25 | 淮安信息职业技术学院 | Industrial lathe integrated control system |
| US10555384B2 (en) | 2016-04-15 | 2020-02-04 | Industrial Technology Research Institute | Modular microwave power supply |
-
2014
- 2014-04-08 CN CN201420171149.1U patent/CN203800840U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10555384B2 (en) | 2016-04-15 | 2020-02-04 | Industrial Technology Research Institute | Modular microwave power supply |
| CN108063557A (en) * | 2018-01-11 | 2018-05-22 | 国安奇纬光电新材料有限公司 | A kind of light modulation film inverter |
| CN108806358A (en) * | 2018-05-21 | 2018-11-13 | 阮晓萍 | A kind of hung intelligent multimedia teaching system |
| CN109079521A (en) * | 2018-08-30 | 2018-12-25 | 淮安信息职业技术学院 | Industrial lathe integrated control system |
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