CN205505115U - Shutdown system and induction cooker - Google Patents
Shutdown system and induction cooker Download PDFInfo
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- CN205505115U CN205505115U CN201620296905.2U CN201620296905U CN205505115U CN 205505115 U CN205505115 U CN 205505115U CN 201620296905 U CN201620296905 U CN 201620296905U CN 205505115 U CN205505115 U CN 205505115U
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- circuit
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- holding circuit
- shutdown system
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Abstract
The utility model provides a shutdown system and electromagnetism stove, this shutdown system includes: the device comprises a conducting circuit, a locking and holding circuit and a main control chip; the locking holding circuit is electrically connected with the main control chip; the conducting circuit is electrically connected with the locking and holding circuit; the locking and holding circuit is used for switching off the power supply when receiving a power supply switching-off signal output by the main control chip, and the locking and holding circuit controls the conducting circuit to switch off the power supply. The utility model provides a shutdown system and electromagnetism stove can realize electromagnetism stove automatic cutout power, reduces the stand-by power consumption of electromagnetism stove.
Description
Technical field
This utility model relates to household appliance technical field, particularly relates to a kind of shutdown system and electromagnetic oven.
Background technology
Along with the developing direction that the world is energy-conservation, China carries out the Energy Labeling system of electric equipment products energetically
Degree and energy saving policy, therefore, the design of the shutdown circuit of low-power consumption in electric equipment products is applied particularly
Important.
Current electric equipment products, such as electromagnetic oven, under open state, pressing switching on and shutting down button can
To realize shutdown, but, current electromagnetic oven is after shutting down by switching on and shutting down button, owing to user is frequent
Forgetting to pull out attaching plug, electromagnetic oven is still standby in energising, long-time energising waste electric energy so that electromagnetism
The stand-by power consumption of stove is big.
Utility model content
In order to solve at least one problem mentioned in background technology, this utility model provides a kind of shutdown system
System and electromagnetic oven, can reduce the stand-by power consumption of electromagnetic oven.
To achieve these goals, this utility model provides a kind of shutdown system, including: turning circuit,
Locking holding circuit and main control chip；Locking holding circuit electrically connects with main control chip；Turning circuit with
Locking holding circuit electrical connection；Locking holding circuit is at the deenergization receiving main control chip output
During signal, lock holding circuit deenergization, and locking holding circuit controls turning circuit deenergization.
So use shutdown system to realize electromagnetic oven auto power off, reduce the stand-by power consumption of electromagnetic oven.
Optionally, shutdown system also includes: starts button, turning circuit and locking holding circuit and also distinguishes
It is connected in parallel with starting button；After startup button is pressed, turning circuit switches on power, at electric conduction
After road switches on power, locking holding circuit switches on power.So can be implemented in startup button to be pressed
Realize electromagnetic oven switch on power by turning circuit and locking holding circuit afterwards.
Optionally, turning circuit includes: switch K1；Switch K1 is connected with power supply, starts button and opens
Close K1 to connect；After startup button is pressed, switch K1 Guan Bi, turning circuit switches on power.So
After can pressing starting button, it is achieved turning circuit switches on power.
Optionally, locking holding circuit includes: relay coil J1；The input of relay coil J1 and
Outfan is connected with main control chip, and relay coil J1 is connected in parallel with starting button；Connect at turning circuit
Behind energising source, relay coil J1 maintenance work state；Main control chip is received at relay coil J1
During the power off signal exported, J1 power-off, K1 opens.So can realize lock holding circuit from
Dynamic circuit breaker is opened, so that electromagnetic oven automatically powers off.
Optionally, shutdown system also includes: closing assisted circuit；Closing assisted circuit is protected with locking respectively
Hold circuit and main control chip connects；Closing assisted circuit receives the power off signal of main control chip output,
And the power off signal of reception is exported to locking holding circuit.So can realize by closing assisted
The power off signal that main control chip exports is exported to locking holding circuit by circuit, makes locking holding circuit
Automatically power off.
Optionally, closing assisted circuit includes: audion Q1 and resistance R1；The current collection of audion Q1
Pole is connected with locking holding circuit, and the base stage of audion Q1 is connected with first end of resistance R1, audion
The grounded emitter of Q1, second end of resistance R1 is for being connected with main control chip.So can realize leading to
Cross audion Q1 and resistance R1 the power off signal that main control chip exports to be exported to locking holding electricity
Road, makes locking holding circuit automatically power off.
Optionally, closing assisted circuit also includes: diode D1；Diode D1 and relay coil J1
Being connected in parallel, the negative pole of diode D1 is connected with the colelctor electrode of audion Q1.So it is possible to prevent to load
Voltage reversal on relay coil J1 causes relay coil J1 to be burned.
Optionally, audion Q1 is PNP type triode, and main control chip is CPU, so can realize
The power off signal that CPU exports is exported to locking holding circuit, makes locking holding circuit automatically power off.
On the other hand, this utility model provides a kind of electromagnetic oven, including: Switching Power Supply and any of the above-described reality
Execute the shutdown system of example.So can realize, by shutdown system auto power off, reducing electromagnetic oven
Stand-by power consumption.
Structure of the present utility model and its other utility model purposes and beneficial effect will be by combining
Accompanying drawing and description of preferred embodiments and become apparent from understandable.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will
The accompanying drawing used required in embodiment or description of the prior art is briefly described, it should be apparent that,
Accompanying drawing in describing below is embodiments more of the present utility model, comes for those of ordinary skill in the art
Say, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The structural representation of the shutdown system that Fig. 1 provides for this utility model embodiment one；
The structural representation of the shutdown system that Fig. 2 provides for this utility model embodiment two；
The structural representation of the shutdown system that Fig. 3 provides for this utility model embodiment three；
The structural representation of the shutdown system that Fig. 4 provides for this utility model embodiment four；
The structural representation of the electromagnetic oven circuit that Fig. 5 provides for this utility model embodiment five.
Description of reference numerals:
Turning circuit 11；Locking holding circuit 12；Main control chip 13；Start button 14；Auxiliary
Help pass closed circuit 15；First end 1 of switch K1；Second end 2 of switch K1；Relay coil
The input (outfan)-3 of J1；The outfan (input)-4 of relay coil J1；Switching Power Supply
—51；Shutdown system 52.
Detailed description of the invention
For making the purpose of this utility model embodiment, technical scheme and advantage clearer, below in conjunction with
Accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out clear,
It is fully described by, it is clear that described embodiment is a part of embodiment of this utility model rather than complete
The embodiment in portion.Based on the embodiment in this utility model, those of ordinary skill in the art are not making
The every other embodiment obtained under creative work premise, broadly falls into the scope of this utility model protection.
Embodiment one
The structural representation of the shutdown system that Fig. 1 provides for this utility model embodiment one.As it is shown in figure 1,
The shutdown system that the present embodiment provides, including: turning circuit 11, locking holding circuit 12 and master control
Chip 13.
Locking holding circuit 12 electrically connects with main control chip 13；Turning circuit 11 and locking holding circuit
12 electrical connections；Locking holding circuit 12 is in the power off signal receiving main control chip 13 output
Time, lock holding circuit 12 deenergization, and locking holding circuit 12 controls turning circuit 11 and disconnects electricity
Source.
Concrete, the shutdown system in the present embodiment is by turning circuit 11, locking holding circuit 12 and master
Control chip 13 forms, and locking holding circuit 12 is connected with main control chip 13, can receive main control chip
The power off signal of 13 outputs.Wherein, in the present embodiment, main control chip 13 can be single-chip microcomputer (Single
Chip Microcomputer, is called for short MCU).When electromagnetic oven is energized, main control chip 13 can be examined in real time
Survey electromagnetic oven duty, main control chip 13 when detecting that electromagnetic oven is in holding state, master control core
Sheet 13 exports power off signal (high level signal or low level signal) to locking holding circuit 12,
When locking holding circuit 12 receives the power off signal of main control chip 13 output, lock holding circuit
12 auto power offs, and locking holding circuit 12 controls turning circuit 11 deenergization, so that electromagnetism
Stove auto power off, it is achieved by shutdown system auto power off, reduce the stand-by power consumption of electromagnetic oven.
It should be noted that main control chip 13 can detect whether electromagnetic oven is in standby in several ways
State, such as, main control chip 13 can but and be only limitted to by detect electromagnetic oven temperature, if detecting
The temperature of electromagnetic oven is less than the temperature preset, then main control chip 13 detects that electromagnetic oven is in holding state.
It should be noted that the shutdown protection system in this enforcement can be applied not only to electromagnetic oven, also may be used
To be applied to the electric equipment products such as electric cooker and insulating pot, it is also possible to be applied to the electronics such as television set and air-conditioning and produce
Product.
In the present embodiment, being electrically connected with main control chip by locking holding circuit, turning circuit is protected with locking
Hold circuit electrical connection, locking holding circuit connect for receive main control chip output power off signal time,
Locking holding circuit deenergization, and locking holding circuit control turning circuit deenergization, it is achieved pass through
Shutdown system auto power off, reduces the stand-by power consumption of electromagnetic oven.
Embodiment two
The structural representation of the shutdown system that Fig. 2 provides for this utility model embodiment two.As in figure 2 it is shown,
Shutdown system in the present embodiment also includes: start button 14, turning circuit 11 and locking holding circuit
12 are connected with startup button 14 the most respectively, and after startup button is pressed, turning circuit 11 switches on power,
After turning circuit 11 switches on power, locking holding circuit 12 switches on power.
Concrete, in the present embodiment, shutdown system is in conducting state when auto power off, can
To press startup button 14 by user, starting after button 14 is pressed by turning circuit 11 and lock
Determine holding circuit 12 to realize electromagnetic oven and switch on power.
Further, in above-described embodiment, turning circuit 11 includes: switch K1.
Switch K1 is connected with power supply, starts button S and is connected in parallel with switch K1；Starting button S quilt
After pressing, switch K1 Guan Bi, turning circuit 11 switches on power.
Concrete, first end 1 of each group of switch K1 is connected with the input L end of power supply, opens for each group
The second end 2 closing K1 is connected with the input N end of power supply, it is achieved switch K1 is connected with power supply.This enforcement
One or more groups can be used in example to switch K1, and each group of switch K1 is in parallel with starting button S, is opening
After dynamic button S is pressed, each group of switch K1 Guan Bi, it is achieved turning circuit 11 switches on power.
Further, above-described embodiment locks holding circuit 12 to include: relay coil J1.
The input (outfan) 3 of relay coil J1 and outfan (input) 4 and main control chip
13 connect, and relay coil J1 is connected with starting button S.
Concrete, input (outfan) 3 and the outfan of the present embodiment repeat circuit coil J1 are (defeated
Enter end) 4 it is used to be connected with main control chip 13, when main control chip 13 exports power off signal,
Such as, main control chip 13 output low level signal, relay coil J1 automatically powers off, it is achieved locking is protected
Hold the automatic disconnection of circuit 12.After relay coil J1 automatically powers off, the magnetic field of relay coil J1 is very
Weak or disappear, each group of switch K1 flicks, it is achieved automatically powering off of turning circuit 11, so that electric
Magnetic stove automatically powers off.
Concrete, the present embodiment uses relay coil J1 in parallel with starting button S, starting button
After S is pressed, relay coil J1 forms lock-out state with starting button S, and relay coil J1 connects
The magnetic field that power supply produces can make each group of switch K1 close always, thus maintains turning circuit 11 to be in
The conducting state switched on power.
It should be noted that in the present embodiment after startup button S is pressed, each group of switch K1 is also
Closure state can be constantly in, now need not relay coil J1 switch on power produce magnetic field maintain
Each group of switch K1 closes always.
It should be noted that the present embodiment repeat circuit coil J1's and each group of switch K1 realizes principle
With prior art repeat circuit coil and switch to realize principle identical, the present embodiment is not defined at this
With repeat.
It should be noted that printed circuit board (PCB) (the Printed Circuit Board after the encapsulation shown in Fig. 2
+ Assembly, is called for short PCBA), PCBA is upper for encapsulating the electronics unit device needed for electric equipment products
Part and each electronic devices and components connection, it is possible to power for each electronic devices and components.
In the present embodiment, on the basis of above-described embodiment, it is connected with power supply by each group of switch K1,
Start button to be connected in parallel with each group of switch K1, it is possible to achieve turning circuit switches on power.Relay
Input and the outfan of coil are connected with control chip, and relay coil is connected in parallel with starting button S,
Can be when main control chip output power off signal, it is achieved the automatic disconnection of locking holding circuit, and
Automatically after the disconnection of locking holding circuit, it is achieved automatically powering off of turning circuit, so that electromagnetic oven is certainly
Dynamic circuit breaker electricity.
Embodiment three
The structural representation of the shutdown system that Fig. 3 provides for this utility model embodiment three.As it is shown on figure 3,
On the basis of Fig. 1 and embodiment illustrated in fig. 2, the shutdown system that the present embodiment provides, also include: auxiliary
Help pass closed circuit 15.
Closing assisted circuit 15 is connected with locking holding circuit 12 and main control chip 13 respectively；Closing assisted
Circuit 15 receives the power off signal of main control chip 13 output, and by defeated for the power off signal of reception
Go out to locking holding circuit 12.
Concrete, in the present embodiment, auxiliary is set between locking holding circuit 12 and main control chip 13
Closing closed circuit 15, the power off signal that main control chip 13 exports is exported to lock by closing assisted circuit 15
Determine holding circuit 12, make locking holding circuit 12 automatically power off.
In the present embodiment, on the basis of above-described embodiment, protected with locking respectively by closing assisted circuit
Holding circuit and main control chip connects, closing assisted circuit receives the power off signal of main control chip output,
And the power off signal of reception is exported to locking holding circuit, it is achieved will be main by closing assisted circuit
The power off signal of control chip output exports to locking holding circuit, makes locking holding circuit automatically power off.
Embodiment four
The structural representation of the shutdown system that Fig. 4 provides for this utility model embodiment four.As shown in Figure 4,
In above-described embodiment, closing assisted circuit 15 includes: audion Q1 and resistance R1.
The colelctor electrode of audion Q1 is connected with locking holding circuit, the base stage of audion Q1 and resistance R1
First end connect, the grounded emitter of audion Q1, second end of resistance R1 for and main control chip
Connect.
Concrete, main control chip is detecting that electric equipment products is in holding state to locking holding circuit
During 12 output power off signal, now, in the present embodiment, the power off signal of main control chip output is
High level signal, the base stage of audion Q1 has certain on-load voltage and electric current, and audion Q1 is in
Saturation conduction state, the pressure drop between the collector and emitter of audion Q1 is the least, the collection of audion Q1
Being considered as short circuit between electrode and emitter stage, being loaded into the voltage on relay coil J1 is low level, relay
After device coil J1 automatically powers off, the magnetic field of relay coil J1 is the most weak or disappears, each group of switch K1 bullet
Open, it is achieved automatically powering off of turning circuit 11, so that electric equipment products automatically powers off.
Concrete, in the present embodiment, audion Q1 can be PNP type triode, and main control chip is permissible
For CPU (Central Processing Unit, be called for short CPU), so that CPU output is disconnected
Switch power supply signal exports to locking holding circuit, makes locking holding circuit automatically power off.
It should be noted that closing assisted circuit 15 is not limited to by audion Q1 and electricity in the present embodiment
Resistance R1, it is also possible to be made up of field effect transistor and resistance etc., as long as can realize exporting main control chip 13
Power off signal exports to locking holding circuit 12, makes locking holding circuit 12 automatically power off,
The present embodiment is not defined at this and repeats.
It should be noted that first end of the R1 of resistance refers to be connected with audion Q1 in the present embodiment
One end, second end of the R2 of resistance refers to the one end being connected with main control chip 13.
Concrete, closing assisted circuit 15 also includes: diode D1；Diode D1 and relay coil
J1 is connected in parallel, and the negative pole of diode D1 is connected with the colelctor electrode of audion Q1.The present embodiment uses
Diode D1 is in parallel with relay coil J1, can prevent from adding when the circuit of electromagnetic oven exists and damages
The voltage reversal being loaded on relay coil J1 causes relay coil J1 to be burned.
Concrete, in the present embodiment second end 2 of each group of switch K1 and power supply input N end it
Between an electric capacity C1 can also be set, the electromagnetic interference of Switching Power Supply can be avoided, can filter switch electricity
The High-frequency Interference in source.
It should be noted that printed circuit board (PCB) (the Printed Circuit Board after the encapsulation shown in Fig. 4
+ Assembly, is called for short PCBA), PCBA is upper for encapsulating the electronics unit device needed for electric equipment products
Part and each electronic devices and components connection, it is possible to power for each electronic devices and components.
In the present embodiment, on the basis of above-described embodiment, by colelctor electrode and the locking of audion Q1
Holding circuit connects, and the base stage of audion Q1 is connected with first end of resistance R1, and audion Q1 sends out
Emitter grounding, second end of resistance R1 is for being connected with main control chip, it is achieved by audion Q1 and electricity
The power off signal that main control chip exports is exported to locking holding circuit by resistance R1, makes locking holding circuit
12 automatically power off.
Embodiment five
The structural representation of the electromagnetic oven circuit that Fig. 5 provides for this utility model embodiment five.Such as Fig. 5 institute
Showing, the electromagnetic oven that the present embodiment provides includes: the shutdown system in Switching Power Supply 51 and any of the above-described embodiment
System 52.
The shutdown system 52 of electromagnetic oven is identical with the 26S Proteasome Structure and Function of the shutdown system that above-described embodiment provides,
The present embodiment is not defined at this and repeats.
In the present embodiment, being electrically connected with main control chip by locking holding circuit, turning circuit is protected with locking
Holding circuit electrical connection, locking holding circuit is used for when receiving the power off signal of main control chip output,
Locking holding circuit deenergization, and locking holding circuit control turning circuit deenergization, it is achieved pass through
Shutdown system auto power off, reduces the stand-by power consumption of electromagnetic oven.
Last it is noted that various embodiments above is only in order to illustrate the technical solution of the utility model, and
Non-to its restriction；Although this utility model being described in detail with reference to foregoing embodiments, ability
The those of ordinary skill in territory is it is understood that it still can be to the technical scheme described in foregoing embodiments
Modify, or the most some or all of technical characteristic is carried out equivalent；And these amendment or
Person replaces, and does not make the essence of appropriate technical solution depart from the model of this utility model each embodiment technical scheme
Enclose.
Claims (10)
1. a shutdown system, it is characterised in that including: turning circuit, locking holding circuit and master
Control chip；
Described locking holding circuit electrically connects with described main control chip；
Described turning circuit electrically connects with described locking holding circuit；
Described locking holding circuit is used for when receiving the power off signal of described main control chip output,
Described locking holding circuit deenergization, and described locking holding circuit control described turning circuit disconnection electricity
Source.
Shutdown system the most according to claim 1, it is characterised in that described shutdown system also includes:
Starting button, described turning circuit and described locking holding circuit are in parallel with described startup button the most respectively to be connected
Connect；
After described startup button is pressed, described turning circuit switches on power；
After described turning circuit switches on power, described locking holding circuit switches on power.
Shutdown system the most according to claim 2, it is characterised in that described turning circuit includes:
Switch K1；
Described switch K1 is connected with power supply, and described startup button is connected in parallel with described switch K1；
After described startup button is pressed, described switch K1 closes, and described turning circuit switches on power.
Shutdown system the most according to claim 3, it is characterised in that described locking holding circuit bag
Include: relay coil J1；
Input and the outfan of described relay coil J1 are connected with described main control chip, described relay
Coil J1 is connected in parallel with described startup button；
After described turning circuit switches on power, described relay coil J1 maintenance work state；
When described relay coil J1 receives the power off signal of described main control chip output, described
J1 power-off, described K1 opens.
Shutdown system the most according to claim 4, it is characterised in that described shutdown system also includes:
Closing assisted circuit；
Described closing assisted circuit is connected with described locking holding circuit and described main control chip respectively；
Described closing assisted circuit receives the power off signal of described main control chip output, and by reception
Described power off signal exports to described locking holding circuit.
Shutdown system the most according to claim 5, it is characterised in that described closing assisted circuit bag
Include: audion Q1 and resistance R1；
The colelctor electrode of described audion Q1 is connected with described locking holding circuit, the base of described audion Q1
Pole is connected with first end of described resistance R1, the grounded emitter of described audion Q1, described resistance
Second end of R1 is for being connected with described main control chip.
Shutdown system the most according to claim 6, it is characterised in that described closing assisted circuit is also
Including: diode D1；
Described diode D1 is connected in parallel with described relay coil J1, the negative pole of described diode D1
It is connected with the colelctor electrode of described audion Q1.
8. according to the shutdown system described in claim 6 or 7, it is characterised in that described audion Q1
For PNP type triode.
9. according to the shutdown system described in any one of claim 1-7, it is characterised in that described master control core
Sheet is central processing unit CPU.
10. an electromagnetic oven, it is characterised in that including: Switching Power Supply and as claim 1-9 is arbitrary
Shutdown system described in Xiang.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620296905.2U CN205505115U (en) | 2016-04-11 | 2016-04-11 | Shutdown system and induction cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620296905.2U CN205505115U (en) | 2016-04-11 | 2016-04-11 | Shutdown system and induction cooker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205505115U true CN205505115U (en) | 2016-08-24 |
Family
ID=56737483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620296905.2U Active CN205505115U (en) | 2016-04-11 | 2016-04-11 | Shutdown system and induction cooker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205505115U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108008648A (en) * | 2016-11-02 | 2018-05-08 | 浙江绍兴苏泊尔生活电器有限公司 | Power supply control method |
-
2016
- 2016-04-11 CN CN201620296905.2U patent/CN205505115U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108008648A (en) * | 2016-11-02 | 2018-05-08 | 浙江绍兴苏泊尔生活电器有限公司 | Power supply control method |
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