CN202524054U - Power supply control device of household appliance and air conditioner - Google Patents
Power supply control device of household appliance and air conditioner Download PDFInfo
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- CN202524054U CN202524054U CN2012201790742U CN201220179074U CN202524054U CN 202524054 U CN202524054 U CN 202524054U CN 2012201790742 U CN2012201790742 U CN 2012201790742U CN 201220179074 U CN201220179074 U CN 201220179074U CN 202524054 U CN202524054 U CN 202524054U
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Abstract
The utility model discloses a domestic appliance's power control device and air conditioner. Wherein, domestic appliance's power control device includes: an input terminal connected to an external power supply; an output terminal connected to a household appliance; a switch connected to a power supply line between the input terminal and the output terminal; and the main control chip is connected with the switch and is used for controlling the switch to be switched on or off. An air conditioner, comprising the control device of any household appliance provided by the utility model. Through the utility model discloses, solved among the prior art the problem that the mode of control domestic appliance disconnection or switch-on power supply can not satisfy user's convenience demand, and then reached convenience of customers control domestic appliance's complete machine power supply whether effect.
Description
Technical field
The utility model relates to household appliance technical field, in particular to a kind of power control and air conditioner of household electrical appliance.
Background technology
Household electrical appliance in use tend to run into following safety problem:
1, for normal domestic use electrical equipment such as air-conditioning, TV etc.; Behind the off signal that receives remote controller, be in holding state usually, can not cut off the complete machine power supply fully; If things go on like this not only take electricity and also cause the inner component aging of electrical equipment easily, cause security incident easily.
2, household electrical appliance in use the electric leakage accident that the internal electric unit failure causes may occur, in case household electrical appliance leak electricity, the personnel that will cause get an electric shock, and are very harmful.
3, household electrical appliance in use may occur transshipping like motor, compressor etc., cause the excessive accident of burning power circuit of electric current.
To above problem, solution of the prior art is respectively: for the complete machine power supply that makes household electrical appliance thoroughly cuts off, the people is the power supply of hand off household electrical appliance, and when using next time, is recovered the power supply of household electrical appliance again by artificial closing by hand; For avoiding taking place the electric leakage accident, advancing electric master switch position installation leakage switch when electric leakage takes place a certain electrical equipment, in time to break off master switch; Be the security incident of avoiding overcurrent to cause, advancing electric master switch position installation air switch when overcurrent occurs, in time to break off master switch.
But there is following drawback in above-mentioned solution:
1, can not satisfy user's convenience demand through the mode of artificial manually disconnection or connection power supply;
The mode of 2, breaking off through air switch or leakage switch control master switch makes that the power supply of all household electrical appliance under the master switch is disposable and all is disconnected; Cause some to be in also compelled the stopping power supply of household electrical appliance under the normal operating conditions, can't realize that pointedly supply line's disconnection of concrete certain household electrical appliance of over current fault or leak current fault appears in control separately.
Break off or the mode of connecting power supply can not satisfy the problem of user's convenience demand to control household electrical appliance in the correlation technique, do not propose effective solution at present as yet.
The utility model content
The main purpose of the utility model is to provide a kind of power control and air conditioner of household electrical appliance, to solve the problem that the mode of controlling the household electrical appliance disconnection in the prior art or connecting power supply can not satisfy user's convenience demand.
To achieve these goals, according to an aspect of the utility model, a kind of power control of household electrical appliance is provided, comprising: input terminal is connected in external power source; Lead-out terminal is connected in household electrical appliance; Switch is connected in the supply line between input terminal and the lead-out terminal; And main control chip, be connected with switch, be used for control switch disconnection or closed.
Further, power control also comprises: power module, be connected respectively with main control chip with external power source, and be used for outer power voltage is converted into the operating voltage of main control chip; And communication module, be connected with main control chip, be used to receive user instruction and user instruction is sent to main control chip, wherein, main control chip breaks off according to the user instruction control switch or is closed.
Further, communication module adopts wireless communication mode to receive user instruction.
Further, power control also comprises: power module, be connected respectively with main control chip with external power source, and be used for outer power voltage is converted into the operating voltage of main control chip; And detection module; Be connected with main control chip; Be used to detect the operating state of household electrical appliance and the working status parameter of household electrical appliance is sent to main control chip, wherein, main control chip is used for judging according to working status parameter whether household electrical appliance are in running order; Control switch closure when judging that household electrical appliance are in running order, control switch breaks off when judging that household electrical appliance are in non operating state.
Further, power control also comprises: the detection of electrical leakage module is connected with main control chip; The electric current that is used for the supply line between sense switch and the lead-out terminal; Obtain first electric current, wherein, main control chip control switch when judging first electric current greater than first predetermined current breaks off.
Further, the detection of electrical leakage module comprises: first current transformer, and the input end of first current transformer is arranged in the supply line between switch and the lead-out terminal; First rectification circuit is connected with the signal output part of first current transformer; And first filter circuit, be connected between first rectification circuit and the main control chip.
Further; Power control also comprises: the over-current detection module; Be connected with main control chip, be used for the neutral line current of the supply line between sense switch and the lead-out terminal, obtain second electric current; Wherein, main control chip control switch when judging second electric current greater than second predetermined current breaks off.
Further, the over-current detection module comprises: second current transformer, and the input end of second current transformer is arranged on the zero line of the supply line between switch and the lead-out terminal; Second rectification circuit is connected with the signal output part of second current transformer; And second filter circuit, be connected between second rectification circuit and the main control chip.
Further; Power control also comprises: fault detection module; Be connected with main control chip, be used for the live wire electric current of the supply line between sense switch and the lead-out terminal, obtain the 3rd electric current; Wherein, main control chip control switch when judging the 3rd electric current less than the 3rd predetermined current breaks off.
Further, fault detection module comprises: the 3rd current transformer, and the input end of the 3rd current transformer is arranged on the live wire of the supply line between switch and the lead-out terminal; And amplifying circuit, be connected between the signal output part and main control chip of the 3rd current transformer.
Further, switch comprises relay, and wherein, the control coil of relay is connected with main control chip, and the sound contact of relay is connected in the supply line between input terminal and the lead-out terminal.
Further, power control also comprises: alarm module is connected with main control chip.
To achieve these goals, according to the utility model on the other hand, a kind of air conditioner is provided, has comprised the power control of any household electrical appliance that the utility model foregoing is provided.
Through the utility model, adopt the power control that comprises following structure: input terminal is connected in external power source; Lead-out terminal is connected in household electrical appliance; Switch is connected in the supply line between input terminal and the lead-out terminal; And main control chip; Be connected with switch; Be used for that control switch breaks off or closed, through in the input terminal of control device and the supply line between the lead-out terminal, switch being set, supply line broke off when switch broke off; Supply line's conducting during switch closure; Realized that the user need not the plug-in strip of hand off or closed household electrical appliance, solved that control household electrical appliance in the prior art break off or the mode of connecting power supply can not satisfy the problem of user's convenience demand, and then reached the effect whether complete machine that makes things convenient for the user to control household electrical appliance supplies power.
Description of drawings
The accompanying drawing that constitutes the application's a part is used to provide the further understanding to the utility model, and illustrative examples of the utility model and explanation thereof are used to explain the utility model, do not constitute the improper qualification to the utility model.In the accompanying drawings:
Fig. 1 is the sketch map according to the power control of the utility model embodiment;
Fig. 2 is the circuit diagram according to the power module of the power control of the utility model embodiment;
Fig. 3 is the circuit diagram according to the detection of electrical leakage module of the power control of the utility model embodiment;
Fig. 4 is the circuit diagram according to the over-current detection module of the power control of the utility model embodiment;
Fig. 5 is the circuit diagram according to the fault detection module of the power control of the utility model embodiment;
Fig. 6 is the circuit diagram according to the alarm module of the power control of the utility model embodiment;
Fig. 7 is the sketch map according to the power control of the utility model preferred embodiment;
Fig. 8 is the circuit diagram according to the power control of the utility model preferred embodiment; And
Fig. 9 is the control principle figure according to the power control of the utility model preferred embodiment.
Embodiment
Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.Below with reference to accompanying drawing and combine embodiment to specify the utility model.
The utility model embodiment provides a kind of power control of household electrical appliance; Fig. 1 is the sketch map according to the power control of the utility model embodiment; As shown in Figure 1, the power control of this embodiment comprises input terminal, lead-out terminal, K switch and main control chip.
Wherein, Input terminal is used for being connected with the externally fed power supply, and lead-out terminal is used for being connected with household electrical appliance, and K switch is arranged in the supply line between input terminal and the lead-out terminal; Main control chip is connected with K switch, with disconnection or the closure of control switch K.
Through in the input terminal of control device and the supply line between the lead-out terminal, switch being set; Supply line broke off when switch broke off; Supply line's conducting during switch closure; Realized that the user need not the plug-in strip of hand off or closed household electrical appliance, solved that control household electrical appliance in the prior art break off or the mode of connecting power supply can not satisfy the problem of user's convenience demand, and then reached the effect whether complete machine that makes things convenient for the user to control household electrical appliance supplies power.
Particularly; Power module can be set the externally fed power source voltage is converted into the operating voltage of main control chip in the power control of the utility model embodiment; The input of power module can be connected with external power source through the input terminal of power control, and the output of power module is connected with the feeder ear of main control chip; As shown in Figure 2, be the sketch map of the power module of the utility model embodiment, adopt the RC module to give chip power supply.Main control chip can come control switch K to break off in the following manner or be closed: the first, the communication module that is connected with main control chip is set in power control; This communication module is used to receive the instruction that the user sends; This user instruction is used to indicate main control chip control switch K to break off or is closed; More specifically, the user can send instruction with the mode of wireless telecommunications to power control through remote controller, avoids barrier stopping signal; Can be convenient to power control and be installed in any position in the scope, make power control more can satisfy user's convenience demand; Second; The detection module that is connected with main control chip is set in power control; This detection module is used to detect the operating state of household electrical appliance, and the parameter information of detected sign household electric appliance operation state is sent to main control chip, and main control chip judges according to the parameter information that receives whether household electrical appliance are in running order; When main control chip is judged household electrical appliance when in running order; Control switch K is closed, and when main control chip was judged household electrical appliance and is in non operating state, control switch K broke off.Wherein, Fail safe and stability for the power control that improves the utility model embodiment; K switch can comprise K switch 1 and K switch 2, and K switch 1 all can be relay switch with K switch 2, and the control coil of relay is connected with main control chip; The sound contact of K1 relay is arranged on the live wire of supply line, and the sound contact of K2 relay is arranged on the zero line of supply line.
Preferably; The power control of the utility model embodiment can also comprise: the detection of electrical leakage module; The input end of this detection of electrical leakage module can be current transformer; Be illustrated with the core-theaded type current transformer, can the live wire between K switch 1, K2 and the lead-out terminal and zero line be all passed the input end of current transformer, the signal output part of current transformer is connected with main control chip after through rectification circuit, filter circuit.Particularly, the circuit connection diagram of detection of electrical leakage module is as shown in Figure 3.
Wherein, The operation principle of detection of electrical leakage module is: when leak current fault appears in the household electrical appliance that are connected with lead-out terminal, current imbalance will appear in the live wire and the electric current on the zero line that pass the input end of current transformer, promptly; The live wire electric current is not equal to neutral line current; This moment, the input end of current transformer had the detection electric current, and the signal output part of current transformer produces induced voltage according to detected electric current, and main control chip can be judged according to the signal of current transformer signal output part output and whether detect electric current greater than first current value; First current value can be set to zero; Certainly, even if under the live wire electric current equals zero the situation of line current, because appliance circuit interference each other; The input end of current transformer still may detect current value; First current value can also rule of thumb be set to other and be a bit larger tham zero value, and main control chip detects household electrical appliance according to the detection of electrical leakage module and leak current fault whether occurs, and control switch breaks off the power supply circuits disconnection that reaches these household electrical appliance of control when leak current fault appears in household electrical appliance.
The independent detection that can whether leak electricity to the household electrical appliance that are connected with this control device through the power control that has the detection of electrical leakage module; And when leak current fault appears in these household electrical appliance, control the supply line of breaking off these household electrical appliance separately, reached and not only avoided the electric leakage accident occurring but also do not influence the normal effect of using of other household electrical appliance.
Preferably; The power control of the utility model embodiment can also comprise: the over-current detection module; The input end of this over-current detection module can be current transformer; Be illustrated with the core-theaded type current transformer, can the zero line between K switch 2 and the lead-out terminal be passed the input end of current transformer, the signal output part of current transformer is connected with main control chip after through rectification circuit, filter circuit.Particularly, the circuit connection diagram of over-current detection module is as shown in Figure 4.
Wherein, The operation principle of over-current detection module is: when the household electrical appliance appearance overload that is connected with lead-out terminal causes the overcurrent in the current supply circuit; The signal output part of current transformer produces induced voltage according to the detected electric current of input end; Main control chip can judge that whether the detection electric current is greater than second current value according to the signal of current transformer signal output part output; Second current value can be provided with the lowest high-current value of the circuit loop that control device allows; Main control chip detects household electrical appliance according to the over-current detection module and over current fault whether occurs, and control switch breaks off the power supply circuits disconnection that reaches these household electrical appliance of control when over current fault appears in household electrical appliance.
Power control through having the over-current detection module can carry out overcurrent whether independent detection to the household electrical appliance that are connected with this control device; And when over current fault appears in these household electrical appliance the independent control supply line of breaking off these household electrical appliance, reached and not only avoided occurring overcurrent and cause the circuit burnout failure but also do not influence the normal effect of using of other household electrical appliance.
Preferably; The power control of the utility model embodiment can also comprise: fault detection module; The input end of this fault detection module can be current transformer; Be illustrated with the core-theaded type current transformer, can the live wire between K switch 1 and the lead-out terminal be passed the input end of current transformer, the signal output part of current transformer is connected with main control chip through amplifying circuit.Particularly, the circuit connection diagram of fault detection module is as shown in Figure 5.
Wherein, The operation principle of fault detection module is: when the household electrical appliance that are connected with lead-out terminal break down; Electric current when the electric current in the live wire will be significantly less than household electrical appliance and is in normal operating conditions; The signal output part of current transformer produces induced voltage according to the detected disorderly closedown electric current of input end; Main control chip can judge according to the signal of current transformer signal output part output and whether detect electric current less than the 3rd current value, when the 3rd current value can be set to household electrical appliance and is in normal operating conditions, and the loop current value in the control device; Whether main control chip detects household electrical appliance according to fault detection module and breaks down, and control switch breaks off the power supply circuits disconnection that reaches these household electrical appliance of control when household electrical appliance break down.
Power control through having fault detection module can carry out fault whether independent detection to the household electrical appliance that are connected with this control device; And the supply line that these household electrical appliance are broken off in independent control when these household electrical appliance break down; Reached both avoid household electrical appliance to nonserviceable down security incident takes place in operation, do not influence the normal effect of using of other household electrical appliance again.
Need to prove; For detection of electrical leakage module, over-current detection module and fault detection module; The power control of the utility model embodiment can include only any detection module among the three, also can comprise any two combination among the three, and perhaps the three includes.
Further; The power control of the utility model embodiment can also comprise alarm module; Alarm module is connected with main control chip; The operation principle of alarm module is: when main control chip was determined household electrical appliance and overcurrent or electric leakage are occurred and wait other fault, main control chip sent alarm signal to alarm module and reports to the police when sending cut-off signal to K switch 1 and K2.Particularly, alarm module can be reported alarm lamp and alarm buzzer, and the physical circuit figure of alarm module is as shown in Figure 6.
The power control of the utility model embodiment can be designed to electrical coupling modes such as plug, socket; User's power supply fire zero line L, N insert power control earlier; Power control is monitored power supply and is outputed to Lout, Nout, and household electrical appliance are from the output power taking.Relay switch K1, K2 can cut off live wire and zero line simultaneously.This power control can also be designed to different sizes such as 10A, 16A, 25A, 32A, to satisfy different household electrical appliance needs.Power control also can be designed to the air switch mode of connection, is installed in to replace socket or air switch on the wall, and household electrical appliance are directly through the protection switch power taking.
Be illustrated (comprising detection of electrical leakage module, over-current detection module, fault detection module and alarm module simultaneously) operation principle of power control with a kind of power control of preferred embodiment:
When power control is worked, continue to monitor current conditions in the electricity consumption loop by each current transformer.When electric leakage and over-current signal occurring, master chip receives high level, and control relay K1, K2 cut off out-put supply, and triggers sound and light alarm, and the built-in buzzer in the power control sounds the alarm, and the LED light flicker informs that the user in time handles.When the current signal that breaks down, and duration of fault current signal when reaching setting-up time, master chip control relay K1, K2 cut off out-put supply, and trigger sound and light alarm.Wherein, If the detected current value of each current transformer is all normal, also be that household electrical appliance are in normal operating conditions or normal standby state, when chip receives wireless communication signal; Master chip is according to signal, and control relay K1, K2 adhesive are perhaps cut off the electricity supply.Particularly, the sketch map of the power control of the utility model preferred embodiment is as shown in Figure 7, and the physical circuit connection layout is shown in Fig. 8, and the control principle figure of the power control of the utility model preferred embodiment is shown in Fig. 9.Wherein, in Fig. 8, label 10 expression power modules, power module 10 adopts the RC module to give the master control chip power supply, and its input is connected to the live wire and the zero line of external power source respectively, and output is connected to the VCC and the VSS port of master control chip respectively; Label 20 expression detection of electrical leakage modules; Live wire between K switch 1, K2 and the lead-out terminal and zero line all pass the input end of the current transformer X1 of detection of electrical leakage module 20, and the signal output part of detection of electrical leakage module 20 is connected to the ACLK port of master control chip; Label 30 expression over-current detection modules, the zero line between K switch 2 and the lead-out terminal passes the input end of the current transformer X2 of over-current detection module 30, and the signal output part of over-current detection module 30 is connected to the NCLK port of master control chip; Label 40 expression fault detection module, the live wire between K switch 1 and the lead-out terminal passes the input end of the current transformer X3 of fault detection module 40, and the signal output part of fault detection module 40 is connected to the TAO port of master control chip; Label 50 expression wireless communication modules, wireless communication module 50 is made up of wireless telecommunications chip and its peripheral circuit, and this wireless communication module can be arranged on the remote controller realization remote controller and control power control with wireless communication mode; Label 60 expression alarm modules comprise buzzer and alarm lamp; The reset circuit of label 70 expression power controls; Label 80 expression switches; Wherein, K switch 1 all can be relay switch with K switch 2, and the moving contact of relay switch K1 and fixed contact are arranged on the live wire between power control input, the lead-out terminal, and the moving contact of relay switch K2 and fixed contact are arranged on the zero line between power control input, the lead-out terminal; The control coil of relay switch K1 and K2 is connected to the master control chip, carries out closure or disconnection with the control of accepting the master control chip.
From above description, can find out that the power control of the utility model embodiment in time cuts off appliances power source, the generation of stopping the security appliance accident fully when household electrical appliance are in standby; And monitor the electrical equipment operating position in real time, the abnormal accident that possibly occur when electrical equipment is used is protected, and avoids the generation of appliance fire.Simultaneously, the power control that the utility model embodiment is provided breaks off through the main control chip control switch or is closed, also has to be quick on the draw accurately safe and reliable advantage.
The preferred embodiment that the above is merely the utility model is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection range of the utility model.
Claims (13)
1. the power control of household electrical appliance is characterized in that, comprising:
Input terminal is connected in external power source;
Lead-out terminal is connected in household electrical appliance;
Switch is connected in the supply line between said input terminal and the said lead-out terminal; And
Main control chip is connected with said switch, is used to control said switch disconnection or closed.
2. power control according to claim 1 is characterized in that, said power control also comprises:
Power module is connected respectively with said main control chip with said external power source, is used for outer power voltage is converted into the operating voltage of said main control chip; And
Communication module is connected with said main control chip, is used to receive user instruction and said user instruction is sent to said main control chip, and wherein, said main control chip is controlled said switch disconnection or closed according to said user instruction.
3. power control according to claim 2 is characterized in that, said communication module adopts wireless communication mode to receive said user instruction.
4. power control according to claim 1 is characterized in that, said power control also comprises:
Power module is connected respectively with said main control chip with said external power source, is used for outer power voltage is converted into the operating voltage of said main control chip; And
Detection module; Be connected with said main control chip; Be used to detect the operating state of said household electrical appliance and the working status parameter of said household electrical appliance is sent to said main control chip, wherein, said main control chip is used for judging according to said working status parameter whether said household electrical appliance are in running order; When judging that said household electrical appliance are in running order, control said switch closure, when judging that said household electrical appliance are in non operating state, control said switch and break off.
5. power control according to claim 1 is characterized in that, said power control also comprises:
The detection of electrical leakage module; Be connected with said main control chip, be used for detecting the electric current of the supply line between said switch and the said lead-out terminal, obtain first electric current; Wherein, said main control chip is controlled said switch disconnection when judging said first electric current greater than first predetermined current.
6. power control according to claim 5 is characterized in that, said detection of electrical leakage module comprises:
First current transformer, the input end of said first current transformer are arranged in the supply line between said switch and the said lead-out terminal;
First rectification circuit is connected with the signal output part of said first current transformer; And
First filter circuit is connected between said first rectification circuit and the said main control chip.
7. power control according to claim 1 is characterized in that, said power control also comprises:
The over-current detection module; Be connected with said main control chip, be used for detecting the neutral line current of the supply line between said switch and the said lead-out terminal, obtain second electric current; Wherein, said main control chip is controlled said switch disconnection when judging said second electric current greater than second predetermined current.
8. power control according to claim 7 is characterized in that, said over-current detection module comprises:
Second current transformer, the input end of said second current transformer are arranged on the zero line of the supply line between said switch and the said lead-out terminal;
Second rectification circuit is connected with the signal output part of said second current transformer; And
Second filter circuit is connected between said second rectification circuit and the said main control chip.
9. power control according to claim 1 is characterized in that, said power control also comprises:
Fault detection module; Be connected with said main control chip, be used for detecting the live wire electric current of the supply line between said switch and the said lead-out terminal, obtain the 3rd electric current; Wherein, said main control chip is controlled said switch disconnection when judging said the 3rd electric current less than the 3rd predetermined current.
10. power control according to claim 9 is characterized in that, said fault detection module comprises:
The 3rd current transformer, the input end of said the 3rd current transformer are arranged on the live wire of the supply line between said switch and the said lead-out terminal; And
Amplifying circuit is connected between the signal output part and said main control chip of said the 3rd current transformer.
11. power control according to claim 1; It is characterized in that; Said switch comprises relay; Wherein, the control coil of said relay is connected with said main control chip, and the sound contact of said relay is connected in the supply line between said input terminal and the said lead-out terminal.
12., it is characterized in that said power control also comprises according to each described power control in the claim 1 to 11:
Alarm module is connected with said main control chip.
13. an air conditioner is characterized in that, comprises power control, said power control is each described power control in the claim 1 to 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201790742U CN202524054U (en) | 2012-04-24 | 2012-04-24 | Power supply control device of household appliance and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201790742U CN202524054U (en) | 2012-04-24 | 2012-04-24 | Power supply control device of household appliance and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202524054U true CN202524054U (en) | 2012-11-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201790742U Expired - Fee Related CN202524054U (en) | 2012-04-24 | 2012-04-24 | Power supply control device of household appliance and air conditioner |
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| Country | Link |
|---|---|
| CN (1) | CN202524054U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103378577A (en) * | 2012-04-24 | 2013-10-30 | 珠海格力电器股份有限公司 | Power supply control device of household appliance and air conditioner |
-
2012
- 2012-04-24 CN CN2012201790742U patent/CN202524054U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103378577A (en) * | 2012-04-24 | 2013-10-30 | 珠海格力电器股份有限公司 | Power supply control device of household appliance and air conditioner |
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