CN203618149U - Induction cooker - Google Patents
Induction cooker Download PDFInfo
- Publication number
- CN203618149U CN203618149U CN201320674696.7U CN201320674696U CN203618149U CN 203618149 U CN203618149 U CN 203618149U CN 201320674696 U CN201320674696 U CN 201320674696U CN 203618149 U CN203618149 U CN 203618149U
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- Prior art keywords
- circuit
- electromagnetic oven
- control board
- holding wire
- power amplifier
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Abstract
The utility model provides an induction cooker including a power panel, a control panel and a signal line connected between the power panel and the control panel. The signal line includes at least one lead; a shielding layer wrapping the outer part of the lead and used for shielding electromagnetic interference; and an insulation layer wrapping the outer part of the shielding layer. By adopting the technical scheme provided by the utility model, signal interference and heat interference between different circuit boards can be reduced and maintenance difficulties and cost can be reduced. Utilization rate of circuit boards can be improved and safety performance of the induction cooker is enhanced.
Description
Technical field
The utility model relates to electromagnetic technology field, in particular to a kind of electromagnetic oven.
Background technology
At present, if by mainboard Success rate of virus isolation plate and the control board of electromagnetic oven, between power amplifier board and control board, connected by PVC winding displacement, winding displacement can be subject to the strong electromagnetic in connection signal mesohigh signal and the electromagnetic oven between power amplifier board and control board, can cause that winding displacement signal transmission produces problem of dtmf distortion DTMF, cause electromagnetic oven operating mode shakiness, exist and use potential safety hazard, and then affect user's experience.
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 a kind of electromagnetic oven.
For achieving the above object, according to the embodiment of first aspect of the present utility model, propose a kind of electromagnetic oven, having comprised: power amplifier board; Control board; Holding wire, described holding wire is connected between described power amplifier board and described control board, and wherein, described holding wire comprises: at least one wire; Screen, is wrapped in the outside of described at least one wire, for shield electromagnetic interference; Insulating barrier, is wrapped in the outside of described screen.
According to the electromagnetic oven of the utility model embodiment, power amplifier board and control board are separated, like this, both avoided strong and weak electricity signal and the heater members/interference mutually between device of being heated, avoid again due to the not enough reliability that reduces product of safe spacing/creepage distance, facilitate power amplifier board and control board are carried out to after-sales service again simultaneously, needn't replace monoblock master control borad because a part for master control borad damages, saved greatly cost.Because the signal of telecommunication is easily disturbed in the electromagnetic field of high frequency of the generation in electromagnetic oven, and between power amplifier board and control board, adopt the holding wire that can bear high pressure and resistance to electromagnetic interference, guaranteed the authenticity of signal transmission, improved the reliability and security of electromagnetic oven mainboard.
In addition, according to the electromagnetic oven 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 electromagnetic oven has coil panel, and described power amplifier board and described control board are arranged on respectively the periphery of described coil panel at interval.
In this technical scheme, because coil panel can produce High-frequency Interference, thereby disturb the signal of telecommunication, therefore between power amplifier board and control board, adopt the holding wire that can bear high pressure and resistance to electromagnetic interference, guarantee the authenticity of signal transmission, improved the reliability and security of electromagnetic oven mainboard.
According to an embodiment of the present utility model, on described power amplifier board, be provided with and comprise operating voltage and be more than or equal to the circuit that predeterminated voltage and/or caloric value are more than or equal to the components and parts of default caloric value; On described control board, be provided with operating voltage and be less than the circuit that predeterminated voltage and/or caloric value are less than the components and parts of default caloric value.
In this technical scheme, can be according to the size of the height of the operating voltage of the components and parts on mainboard and/or caloric value, determine that it should be divided to power amplifier board or control board.Certainly, owing to may relate to operating voltage components and parts high and low, that caloric value is large and little in some circuit simultaneously, should divide according to actual conditions, such as: as long as there are the components and parts that operating voltage is high and/or caloric value is large, just its corresponding circuit is divided to power amplifier board; Or when operating voltage high (higher than predeterminated voltage) and/or the caloric value components and parts of (being greater than default caloric value) greatly, and the proportionate relationship between the components and parts that operating voltage is low and/or caloric value is little, for example be greater than in 80% situation, just this circuit be divided to power amplifier board etc.
Wherein, concrete predeterminated voltage or the numerical value of default caloric value, can be determined according to actual conditions by manufacturer or adjust, to reducing the interference between power amplifier board and control board.
For a kind of comparatively concrete execution mode, following circuit can be set on power amplifier board: rectification circuit, filter circuit, resonant circuit and first sample circuit of serial connection successively; Wherein, described rectification circuit is also connected to AC power, and described resonant circuit is connected to described control board by described the first sample circuit.
Correspondingly, following circuit can be set on control board: the second sample circuit, the input of described the second sample circuit is connected to described the first sample circuit; Control drive circuit, the input of described control drive circuit is connected to the output of described the second sample circuit, and the output of described control drive circuit is connected to described resonant circuit; Switching power circuit, the input of described switching power circuit is connected to AC power, and the output of described switching power circuit is connected to described control drive circuit.
According to an embodiment of the present utility model, also comprise: display panel, described display panel is connected to described control board by described holding wire.
According to an embodiment of the present utility model, described holding wire also comprises: terminal, is connected to the two ends of described at least one wire, and can be connected with the socket on described power amplifier board and described control board.
According to an embodiment of the present utility model, the described screen of described holding wire is tinfoil paper or aluminium foil.
According to the holding wire of embodiment of the present utility model, its screen can adopt tinfoil paper, aluminium foil etc., certainly, is not limited to above-mentioned bi-material, can also adopt the material that other can shield electromagnetic interference.
According to an embodiment of the present utility model, the described insulating barrier of described holding wire is insulation rubber.
According to an embodiment of the present utility model, the diameter of described holding wire is greater than 0.51mm.
According to the holding wire of embodiment of the present utility model, it adopts and can bear high-tension specification, wherein, high voltage refers to that voltage is more than 300V, like this, adopt this holding wire, having solved winding displacement can not compatible high-voltage signal line and the poor problem of effectiveness, guarantee the authenticity of the signal of winding displacement transmission, improved the security performance of electromagnetic oven.
By above technical scheme, power amplifier board and control board are separated, like this, both avoided strong and weak electricity signal and the heater members/interference mutually between device of being heated, avoid again due to the not enough reliability that reduces product of safe spacing/creepage distance, facilitate power amplifier board and control board are carried out to after-sales service again simultaneously, needn't replace monoblock master control borad because a part for master control borad damages, saved greatly cost.And between power amplifier board and control board, adopt the holding wire that can bear high pressure and resistance to electromagnetic interference, and guarantee the authenticity of signal transmission, improve the reliability and security of electromagnetic oven mainboard.
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.
Accompanying drawing explanation
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 according to the schematic block diagram of the electromagnetic oven of embodiment of the present utility model;
Fig. 2 shows according to the structural representation of the holding wire of the electromagnetic oven of an embodiment of the present utility model;
Fig. 3 shows the A-A of Fig. 2 to sectional structure schematic diagram;
Fig. 4 shows according to the perspective view of the power amplifier board of an embodiment of the present utility model;
Fig. 5 shows according to the perspective view of the control board of an 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. 1 shows according to the schematic block diagram of the electromagnetic oven of embodiment of the present utility model.
As shown in Figure 1, according to the electromagnetic oven of embodiment of the present utility model, comprising: power amplifier board 1; Control board 2; Holding wire 3, holding wire 3 is connected between power amplifier board 1 and control board 2; And display panel 4, display panel 4 is connected to control board 2 by holding wire 3; Described electromagnetic oven also comprises: coil panel 5, described power amplifier board 1 and described control board 2 are arranged on respectively the periphery of described coil panel 5 at interval.
Wherein, because coil panel can produce High-frequency Interference, thereby disturb the signal of telecommunication, therefore between power amplifier board and control board, adopt the holding wire that can bear high pressure and resistance to electromagnetic interference, guarantee the authenticity of signal transmission, improved the reliability and security of electromagnetic oven mainboard.
Fig. 2 shows according to the structural representation of the holding wire of the electromagnetic oven of an embodiment of the present utility model.Fig. 3 shows the A-A of Fig. 2 to sectional structure schematic diagram.
As shown in Figure 3, holding wire comprises: at least one wire 31; Screen 32, is wrapped in the outside of at least one wire 31, for shield electromagnetic interference; Insulating barrier 33, is wrapped in the outside of screen 32.
Power amplifier board and control board are separated, like this, both avoided strong and weak electricity signal and the heater members/interference mutually between device of being heated, avoid again due to the not enough reliability that reduces product of safe spacing/creepage distance, facilitate power amplifier board and control board are carried out to after-sales service again simultaneously, needn't replace monoblock master control borad because a part for master control borad damages, save greatly cost.And between power amplifier board and control board, adopt the holding wire that can bear high pressure and resistance to electromagnetic interference, and guarantee the authenticity of signal transmission, improve the reliability and security of electromagnetic oven mainboard.
As shown in Figure 2, according to an embodiment of the present utility model, holding wire also comprises: terminal 34, is connected to the two ends of at least one wire 31, and can be connected with the socket on power amplifier board 1 and control board 2.
For a kind of comparatively concrete execution mode, the screen 32 of holding wire 3 is tinfoil paper or aluminium foil.
According to the holding wire of embodiment of the present utility model, its screen can adopt tinfoil paper, aluminium foil etc., certainly, is not limited to above-mentioned bi-material, can also adopt the material that other can shield electromagnetic interference.
For a kind of comparatively concrete execution mode, the insulating barrier 33 of holding wire 3 is insulation rubber.
According to an embodiment of the present utility model, the diameter of holding wire 3 is greater than 0.51mm.
According to the holding wire of embodiment of the present utility model, it adopts and can bear high-tension specification, wherein, high voltage refers to that voltage is more than 300V, like this, adopt this holding wire, having solved winding displacement can not compatible high-voltage signal line and the poor problem of effectiveness, guarantee the authenticity of the signal of winding displacement transmission, improved the security performance of electromagnetic oven.
Based on the technical solution of the utility model, can be according to the size of the height of the operating voltage of the components and parts on mainboard and/or caloric value, determine that it should be divided to power amplifier board or control board.Certainly, owing to may relate to operating voltage components and parts high and low, that caloric value is large and little in some circuit simultaneously, should divide according to actual conditions, such as: as long as there are the components and parts that operating voltage is high and/or caloric value is large, just its corresponding circuit is divided to power amplifier board; Or when operating voltage high (higher than predeterminated voltage) and/or the caloric value components and parts of (being greater than default caloric value) greatly, and the proportionate relationship between the components and parts that operating voltage is low and/or caloric value is little, for example be greater than in 80% situation, just this circuit be divided to power amplifier board etc.
Wherein, concrete predeterminated voltage or the numerical value of default caloric value, can be determined according to actual conditions by manufacturer or adjust, to reducing the interference between power amplifier board and control board.
Fig. 4 shows according to the perspective view of the power amplifier board of an embodiment of the present utility model.
As shown in Figure 4, according to above-mentioned mode classification, according to the power amplifier board 1 of an embodiment of the present utility model, be provided with and comprise operating voltage and be more than or equal to the circuit that predeterminated voltage and/or caloric value are more than or equal to the components and parts of default caloric value.
For a kind of comparatively concrete execution mode, following circuit can be set on power amplifier board 1: rectification circuit, filter circuit, resonant circuit and first sample circuit of serial connection successively; Wherein, described rectification circuit is also connected to AC power, and described resonant circuit is connected to described control board by described the first sample circuit.
Wherein, Fig. 4 shows the rectifier bridge 11 that forms this rectification circuit, forms choking-winding 12 and the filter capacitor 13 of filter circuit, and forms resonant capacitance 14 and the IGBT switching tube 15 of resonant circuit.
Fig. 5 shows according to the perspective view of the control board of an embodiment of the present utility model.
As shown in Figure 5, according to above-mentioned mode classification, according to the control board 2 of an embodiment of the present utility model, be provided with operating voltage and be less than the circuit that predeterminated voltage and/or caloric value are less than the components and parts of default caloric value.
For a kind of comparatively concrete execution mode, following circuit can be set on control board 2: the second sample circuit, the input of described the second sample circuit is connected to described the first sample circuit; Control drive circuit, the input of described control drive circuit is connected to the output of described the second sample circuit, and the output of described control drive circuit is connected to described resonant circuit; Switching power circuit, the input of described switching power circuit is connected to AC power, and the output of described switching power circuit is connected to described control drive circuit.
Wherein, Fig. 5 shows the main control chip 21, temperature sampling circuit 22, voltage sampling circuit 23 and the current sampling circuit 24 that form this second sample circuit, form the IGBT control circuit 25 of this control drive circuit, and other components and parts and circuit on control board 2, as switching power circuit 26 etc.
More than be described with reference to the accompanying drawings the technical solution of the utility model by above technical scheme, power amplifier board and control board are separated, like this, both avoided strong and weak electricity signal and the heater members/interference mutually between device of being heated, avoid again due to the not enough reliability that reduces product of safe spacing/creepage distance, facilitate power amplifier board and control board are carried out to after-sales service again simultaneously, needn't replace monoblock master control borad because a part for master control borad damages, saved greatly cost.And between power amplifier board and control board, adopt the holding wire that can bear high pressure and resistance to electromagnetic interference, and guarantee the authenticity of signal transmission, improve the reliability and security of electromagnetic oven mainboard.
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 modification of doing, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model.
Claims (10)
1. an electromagnetic oven, is characterized in that, comprising:
Power amplifier board;
Control board;
Holding wire, described holding wire is connected between described power amplifier board and described control board,
Wherein, described holding wire comprises:
At least one wire;
Screen, is wrapped in the outside of described at least one wire, for shield electromagnetic interference;
Insulating barrier, is wrapped in the outside of described screen.
2. electromagnetic oven according to claim 1, is characterized in that, described electromagnetic oven has coil panel, and described power amplifier board and described control board are arranged on respectively the periphery of described coil panel at interval.
3. electromagnetic oven according to claim 1, is characterized in that, is provided with to comprise operating voltage and be more than or equal to the circuit that predeterminated voltage and/or caloric value are more than or equal to the components and parts of default caloric value on described power amplifier board;
On described control board, be provided with operating voltage and be less than the circuit that predeterminated voltage and/or caloric value are less than the components and parts of default caloric value.
4. electromagnetic oven according to claim 3, is characterized in that, the circuit arranging on described power amplifier board comprises:
Rectification circuit, filter circuit, resonant circuit and first sample circuit of serial connection successively;
Wherein, described rectification circuit is also connected to AC power, and described resonant circuit is connected to described control board by described the first sample circuit.
5. electromagnetic oven according to claim 4, is characterized in that, the circuit arranging on described control board comprises:
The second sample circuit, the input of described the second sample circuit is connected to described the first sample circuit;
Control drive circuit, the input of described control drive circuit is connected to the output of described the second sample circuit, and the output of described control drive circuit is connected to described resonant circuit;
Switching power circuit, the input of described switching power circuit is connected to described AC power, and the output of described switching power circuit is connected to described control drive circuit.
6. electromagnetic oven according to claim 1, is characterized in that, also comprises:
Display panel, described display panel is connected to described control board by described holding wire.
7. electromagnetic oven according to claim 1, is characterized in that, described holding wire also comprises:
Terminal, is connected to the two ends of described at least one wire, and can be connected with the socket on described power amplifier board and described control board.
8. electromagnetic oven according to claim 1, is characterized in that, the described screen of described holding wire is tinfoil paper or aluminium foil.
9. electromagnetic oven according to claim 1, is characterized in that, the described insulating barrier of described holding wire is insulation rubber.
10. according to the electromagnetic oven described in any one in claim 1 to 9, it is characterized in that, the diameter of described holding wire is greater than 0.51mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320674696.7U CN203618149U (en) | 2013-10-29 | 2013-10-29 | Induction cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320674696.7U CN203618149U (en) | 2013-10-29 | 2013-10-29 | Induction cooker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203618149U true CN203618149U (en) | 2014-05-28 |
Family
ID=50770764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320674696.7U Expired - Fee Related CN203618149U (en) | 2013-10-29 | 2013-10-29 | Induction cooker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203618149U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021044259A (en) * | 2020-12-10 | 2021-03-18 | 三菱電機株式会社 | Heating cooker |
-
2013
- 2013-10-29 CN CN201320674696.7U patent/CN203618149U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021044259A (en) * | 2020-12-10 | 2021-03-18 | 三菱電機株式会社 | Heating cooker |
| JP7074179B2 (en) | 2020-12-10 | 2022-05-24 | 三菱電機株式会社 | Cooker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20140528 Termination date: 20201029 |