CN207352377U - The anti-jamming circuit and cooking apparatus of a kind of cooking apparatus - Google Patents
The anti-jamming circuit and cooking apparatus of a kind of cooking apparatus Download PDFInfo
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- CN207352377U CN207352377U CN201721364289.0U CN201721364289U CN207352377U CN 207352377 U CN207352377 U CN 207352377U CN 201721364289 U CN201721364289 U CN 201721364289U CN 207352377 U CN207352377 U CN 207352377U
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Abstract
The application proposes a kind of anti-jamming circuit and cooking apparatus of cooking apparatus, is related to cooking apparatus control field, the anti-jamming circuit includes：Access control circuit, turn-on control circuit, ghyristor circuit and load circuit；The access control circuit is to control the ghyristor circuit whether to access the turn-on control circuit and the load circuit, and the turn-on control circuit is controlling the ghyristor circuit conducting to control the load circuit works.Using accessing whether control circuit control ghyristor circuit accesses turn-on control circuit and load circuit, avoid the contour pressure of optocoupler, triode from misleading, solve silicon-controlled false triggering in EFT tests；Turn-on control circuit and ghyristor circuit are physically disconnected using relay, ensure that EFT tests batch uniformity；Using relay as control device, it is alternative to reduce components selection difficulty, raising component；Flow-resistant capacity requirement is low, versatile using common low current relay, device.
Description
Technical field
It the utility model is related to cooking apparatus control field, and in particular to a kind of anti-jamming circuit of cooking apparatus and culinary art
Utensil.
Background technology
It is silicon-controlled to be widely used in as main control device in household electrical appliances, such as：Motor control, lamp, heating tube, plus
Heated filament etc. all employs silicon-controlled control, requires standby to beat EFT (Electrical Fast for current household electrical appliance
Transient, electric fast-pulse group) 4KV do not allow work, and it is silicon-controlled to include be easy to causeing including its driving in EFT tests
False triggering, therefore solve the problems, such as that in EFT tests thus silicon-controlled false triggering produces.
Prior art：As shown in Figure 1, using photoelectric coupling bidirectional triode thyristor driver, it belongs to photoelectrical coupler
One kind, for driving bidirectional triode thyristor BCR and playing the role of isolation, R6 for triggering current-limiting resistance, R7 for BCR gate poles electricity
Resistance, prevents false triggering, improves antijamming capability.When P1.0 low levels, triode T2 conductings photoelectric coupling conducting at the same time, controllable
Silicon BCR is also switched on, and 220V voltage-drop loadings in RL loads, start to work by equipment.
There are the following problems for the prior art：
1st, under standby, 4KV EFT tests may cause silicon-controlled false triggering.
2nd, it is pressure-resistant to photoelectrical coupler, coherence request is excessive, the optocoupler of part brand is difficult to reach in 4KV EFT tests
To requiring；The optocoupler of part brand meets the requirements, but selling at exorbitant prices.
Utility model content
The utility model provides a kind of anti-jamming circuit and cooking apparatus of cooking apparatus, prevents silicon-controlled in EFT tests
When false triggering.
In order to realize above-mentioned purpose of utility model, the technical solution that the utility model is taken is as follows：
In a first aspect, the utility model provides a kind of anti-jamming circuit of cooking apparatus, including：
Access control circuit, turn-on control circuit, ghyristor circuit and load circuit；
The access control circuit is controlling whether the ghyristor circuit accesses the turn-on control circuit and described
Load circuit, the turn-on control circuit is controlling ghyristor circuit conducting to control the load circuit works.
Preferably, the access control circuit includes relay, and the controlled switch of the relay is connected to the conducting
Between control circuit and the ghyristor circuit, the relay controls the ghyristor circuit access conducting control electricity
Road, ghyristor circuit described in first Automatic level control of turn-on control circuit pin turn on.
Preferably, the turn-on control circuit includes the first triode, and the controlled switch of the relay is connected to described
Between the collector of first triode and the ghyristor circuit.
Preferably, the access control circuit includes relay, and the controlled switch of the relay is connected to described controllable
Between silicon circuit and the load circuit, the relay controls the ghyristor circuit to access the load circuit.
Preferably, the load circuit includes firewire and zero curve, and two controlled switches of the relay are connected to
The firewire and zero curve of the load circuit.
Preferably, the access control circuit includes the second triode, the collector of second triode and it is described after
The control terminal of electric appliance is connected.
Preferably, the turn-on control circuit includes first resistor, second resistance and the first capacitance, the second resistance and
It is series at after first capacitance is in parallel with the emitter of the first triode of the turn-on control circuit with the first resistor described
Between the level pin and ground terminal of turn-on control circuit.
Preferably, the access control circuit includes the 6th resistance and the 7th resistance, the 7th resistance and the access
The control of the access control circuit is series at after the emitter parallel connection of second triode of control circuit with the 6th resistance
Between pin and ground terminal.
Preferably, the anti-jamming circuit further includes：Absorbing circuit, the absorbing circuit are connected to the silicon-controlled electricity
Between road and the load circuit.
Second aspect, the utility model also provide a kind of cooking apparatus, include the anti-jamming circuit of above-mentioned cooking apparatus.
Compared to the prior art, using control circuit is accessed the utility model controls whether ghyristor circuit accesses conducting control
Circuit and load circuit processed, have the advantages that：
1st, the utility model is solved controllable in EFT tests using accessing whether control circuit control is silicon-controlled accesses circuit
Silicon false triggering；
2nd, the utility model reduces components selection difficulty, improves component replacement using relay as control device
Property；
3rd, the relay of the utility model requires flow-resistant capacity low, and using common low current relay, device leads to
It is strong with property；
4th, the utility model physically disconnects turn-on control circuit and ghyristor circuit using relay, ensure that EFT is surveyed
Try batch uniformity；
5th, the utility model avoids the contour pressure of optocoupler, triode from misleading.
Brief description of the drawings
Fig. 1 is the structure diagram of the scr triggering device of correlation technique；
Fig. 2 is the structure diagram of the anti-jamming circuit of the cooking apparatus of the utility model embodiment one；
Fig. 3 is the structure diagram of the anti-jamming circuit of the cooking apparatus of the utility model embodiment two.
Embodiment
To make the purpose of utility model of the utility model, technical solution and beneficial effect of greater clarity, with reference to
Attached drawing illustrates the embodiment of the utility model, it is necessary to illustrate, in the case where there is no conflict, the implementation in the application
Feature in example and embodiment can be mutually combined.
As shown in Figures 2 and 3, the utility model embodiment provides a kind of anti-jamming circuit of cooking apparatus, including：
Access control circuit, turn-on control circuit, ghyristor circuit and load circuit；
The access control circuit is controlling whether the ghyristor circuit accesses the turn-on control circuit and described
Load circuit, the turn-on control circuit is controlling ghyristor circuit conducting to control the load circuit works.
The utility model is solved silicon-controlled in EFT tests using accessing whether control circuit control is silicon-controlled accesses circuit
False triggering；Using relay as control device, it is alternative to reduce components selection difficulty, raising component；The utility model
Relay to flow-resistant capacity require it is low, it is versatile using common low current relay, device.
The utility model access control circuit has two kinds of forms：
Form one：As shown in Fig. 2, the access control circuit includes relay, the controlled switch connection of the relay
Between the turn-on control circuit and the ghyristor circuit, the relay controls leads described in the ghyristor circuit access
Logical control circuit, ghyristor circuit described in first Automatic level control of turn-on control circuit pin turn on.Specifically, the conducting
Control circuit includes the first triode Q2, the controlled switch of the relay be connected to the collector of the first triode Q2 with
Between the ghyristor circuit.
Form two：As shown in figure 3, the access control circuit includes relay, the controlled switch connection of the relay
Between the ghyristor circuit and the load circuit, the relay controls the ghyristor circuit access load electricity
Road.Specifically, the load circuit includes firewire and zero curve, and two controlled switches of the relay are connected to described bear
Carry the firewire and zero curve of circuit.
The access control circuit includes the second triode Q303, the collector of the second triode Q303 and it is described after
The control terminal of electric appliance is connected.
The turn-on control circuit includes first resistor R1, second resistance R2 and the first capacitance C1, the second resistance R2
With the first capacitance C1 it is in parallel with the emitter of the first triode Q2 of the turn-on control circuit after with the first resistor R1 go here and there
It is coupled between the level pin of the turn-on control circuit and ground terminal.
The ghyristor circuit includes：3rd resistor R3, the 4th resistance R4 and silicon-controlled TR1, the sun of the silicon-controlled TR1
Pole and cathode are connected to firewire and zero curve, and the 4th resistance R4 is connected to the control pole of silicon-controlled TR1；3rd electricity
Resistance R3 connects with the 4th resistance R4.
Preferably, the anti-jamming circuit further includes：Absorbing circuit, the absorbing circuit are connected to the silicon-controlled electricity
Between road and the load circuit.
The absorbing circuit includes：5th resistance R5 and the second capacitance C2, the 5th resistance R5 and the second capacitance C2 string
It is associated between firewire and zero curve.
The access control circuit includes the 6th resistance R6 and the 7th resistance R7, and the 7th resistance R7 is controlled with the access
The access control circuit is series at after the emitter parallel connection of second triode Q303 of circuit processed with the 6th resistance R6
Between controlling switch and ground terminal.
Correlation technique silicon-controlled driving (optocoupler, triode) in EFT tests is easy to turn on, so as to cause silicon-controlled false touch
Hair.The mode one of the utility model embodiment uses relay, when EFT is tested, is controlled in R3 with sealing in relay in Q2
System, under standby, relay disconnects, and R3 and Q2 can not be formed into a loop, and conducting voltage is not present in silicon-controlled G poles, TR1 (1 foot) pole,
So standby lower EFT test is silicon-controlled will not false triggering.Under ideal case, JK pins are low level, and Q303 ends, relay
REL1 is disconnected, silicon-controlled to work.During work, JK pins are high level, and relay is attracted, and TRC1 pins are high level, Q2
Conducting, silicon-controlled work.
Mode two is using the direct break-make line of relay and firewire, and in zero firewire of standby lower disconnection, EFT can not be beaten silicon-controlled
On circuit, therefore false triggering will not be produced.Relay in mode two wants root because being directly connected on zero curve and firewire
Suitable relay is selected according to the electric current of load, in order to avoid damage relay.
The utility model embodiment also provides a kind of cooking apparatus, includes the anti-jamming circuit of above-mentioned cooking apparatus.Institute
It can be the kitchen appliances such as electromagnetic oven, electric cooker or electric pressure pot to state cooking apparatus.
Although the revealed embodiment of the utility model is as above, its content is only to facilitate understand the utility model
Technical solution and the embodiment that uses, be not intended to limit the utility model.Any the utility model technical field
Interior technical staff, can be in the form of implementation on the premise of the revealed core technology scheme of the utility model is not departed from
With any modification and change are made in details, but the protection domain that the utility model is limited still must be with appended claims
Subject to the scope of restriction.
Claims (10)
- A kind of 1. anti-jamming circuit of cooking apparatus, it is characterised in that including：Access control circuit, turn-on control circuit, ghyristor circuit and load circuit；It is described to access control circuit to control whether the ghyristor circuit accesses the turn-on control circuit and the load Circuit, the turn-on control circuit is controlling ghyristor circuit conducting to control the load circuit works.
- 2. anti-jamming circuit as claimed in claim 1, it is characterised in that：The access control circuit includes relay, described The controlled switch of relay is connected between the turn-on control circuit and the ghyristor circuit, described in the relay control Ghyristor circuit accesses the turn-on control circuit, ghyristor circuit described in first Automatic level control of turn-on control circuit pin Conducting.
- 3. anti-jamming circuit as claimed in claim 2, it is characterised in that：The turn-on control circuit includes the first triode, The controlled switch of the relay is connected between collector and the ghyristor circuit of first triode.
- 4. anti-jamming circuit as claimed in claim 1, it is characterised in that：The access control circuit includes relay, described The controlled switch of relay is connected between the ghyristor circuit and the load circuit, and the relay control is described controllable Silicon circuit accesses the load circuit.
- 5. anti-jamming circuit as claimed in claim 4, it is characterised in that：The load circuit includes firewire and zero curve, described The controlled switch of two of relay is connected to the firewire and zero curve of the load circuit.
- 6. the anti-jamming circuit as described in claim 3 or 5, it is characterised in that：The access control circuit includes the two or three pole Pipe, the collector of second triode are connected with the control terminal of the relay.
- 7. the anti-jamming circuit as described in claim 3 or 5, it is characterised in that：The turn-on control circuit include first resistor, The transmitting of second resistance and the first capacitance, the second resistance and the first capacitance and the first triode of the turn-on control circuit Extremely it is series at after parallel connection with the first resistor between the level pin of the turn-on control circuit and ground terminal.
- 8. the anti-jamming circuit as described in claim 3 or 5, it is characterised in that：The access control circuit includes the 6th resistance With the 7th resistance, with the described 6th after the 7th resistance is in parallel with the emitter of the second triode of the access control circuit Resistance is series between controlling switch and the ground terminal of the access control circuit.
- 9. the anti-jamming circuit as described in any in claim 1 to 5, it is characterised in that：Further include：Absorbing circuit, the suction Receipts are electrically connected between the ghyristor circuit and the load circuit.
- A kind of 10. cooking apparatus, it is characterised in that：Include the anti-interference electricity of any cooking apparatus of claim 1 to 9 Road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721364289.0U CN207352377U (en) | 2017-10-23 | 2017-10-23 | The anti-jamming circuit and cooking apparatus of a kind of cooking apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721364289.0U CN207352377U (en) | 2017-10-23 | 2017-10-23 | The anti-jamming circuit and cooking apparatus of a kind of cooking apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207352377U true CN207352377U (en) | 2018-05-11 |
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ID=62355290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721364289.0U Active CN207352377U (en) | 2017-10-23 | 2017-10-23 | The anti-jamming circuit and cooking apparatus of a kind of cooking apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207352377U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020042473A1 (en) * | 2018-08-30 | 2020-03-05 | 珠海格力电器股份有限公司 | Driver circuit, switch control circuit, and cooking appliance |
-
2017
- 2017-10-23 CN CN201721364289.0U patent/CN207352377U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020042473A1 (en) * | 2018-08-30 | 2020-03-05 | 珠海格力电器股份有限公司 | Driver circuit, switch control circuit, and cooking appliance |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230628 Address after: No. 999, Mei Li Road, Huaiyin District, Ji'nan, Shandong Patentee after: Shandong Jiuchuang Home Appliance Co.,Ltd. Address before: No. 999, Mei Li Road, Huaiyin District, Ji'nan, Shandong Patentee before: JOYOUNG Co.,Ltd. |