CN102354266A - Moving device for household appliance and control method thereof - Google Patents
Moving device for household appliance and control method thereof Download PDFInfo
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- CN102354266A CN102354266A CN2011102428180A CN201110242818A CN102354266A CN 102354266 A CN102354266 A CN 102354266A CN 2011102428180 A CN2011102428180 A CN 2011102428180A CN 201110242818 A CN201110242818 A CN 201110242818A CN 102354266 A CN102354266 A CN 102354266A
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Abstract
The invention relates to the technical field of a household appliance, and especially relates to a moving device for the household appliance capable of eliminating potential safety hazard in use. The moving device comprises a moving part, a driving circuit, a touch electrode, a touch identifying circuit and a microcontroller, wherein the driving circuit is used for driving the moving part; the touch electrode is arranged on the surface or exterior of the moving part; the driving circuit is electrically connected to the microcontroller; an input end of the touch identifying circuit is electrically connected to the touch electrode; and an output end of the touch identifying circuit is electrically connected to the microcontroller. The invention also relates to a control method for the moving device for the household appliance. By using the moving device for the household appliance, the potential safety hazard in use of the household appliance is eliminated and the harm to limbs of a user caused by changing or stopping the running of the moving device for the household appliance is avoided.
Description
Technical field
The present invention relates to household electrical appliance technical field, relate to a kind of household electrical appliance head and the control method thereof that can eliminate hidden danger safe in utilization especially.
Background technology
Controlled head has great importance as the part of some home appliance structure usually.Such as the wind-guiding leaf mechanism of air conditioner, when air-conditioning normally moved, wind blade was controlled at special angle automatically according to user's request or air conditioner; After air conditioner is normally closed, wind blade will be fully closed, prevent that toy such as mouse from crawling into air conditioner main body and causing security incident, and can effectively reduce dust and get into air conditioner main body.The head of household electrical appliance basically all is according to the method for operation of preset program control movable part, is finished until preset program, otherwise can initiatively stop.Wind blade such as air conditioner can initiatively be closed when air conditioner shuts down, and except opening once more the air-conditioning, wind blade can the active phase down in the closed procedure of pass.There is certain potential safety hazard in such control procedure; Movable part is easy to accidentally injure the human body of contact movable part in operational process; In course of action,, just might accidentally injure user's finger such as the air conditioner wind-guiding blade if the user removes to move wind blade by force.
At present; The body part of user's contact on movable part accidentally injured for the head that prevents household electrical appliance by a lot of household appliances manufacturers; Understand near head or surperficial showy place's subsides alarming sign, like signs such as " please don't manually move wind guide strip, " in order to avoid jam a finger.So generally speaking prompting can produce effect, but under special situation, when being not intended to touch head like the user, such prompting can not prevent that still the user from being crushed, and still exists potential safety hazard.
Summary of the invention
The invention provides a kind of household electrical appliance head, eliminated the hidden danger safe in utilization of household electrical appliance, the limb injury of avoiding the head of household electrical appliance to be changed or the user being caused when stoping the method for operation.
The present invention also provides a kind of control method of household electrical appliance head.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is:
A kind of household electrical appliance head; Comprise movable part, be used to drive movable part driving circuit, be laid in movable part surface or outside touch electrode, touch recognition circuit and microcontroller; Said driving circuit is electrically connected with microcontroller, and the input end of touch recognition circuit is electrically connected with touch electrode, output terminal is electrically connected with microcontroller.
Touch electrode is arranged in movable part surface or on every side; When object or user's body position contact the movable part of household electrical appliance; Touch electrode can be passed to the touch recognition circuit immediately with signal; The touch recognition circuit is passed to microcontroller after converting the human body activation signal into electric signal; Microcontroller is received after the touch signal classification that the touch recognition circuit transmits execute exception defence program immediately, prevents the human body that mechanical injuries contacted with movable part when movable part moved by normal mode.
In the such scheme, said touch electrode is a conductive layer, and wherein, said conductive layer can be conductive paint or conduction thin skin, and the conduction thin skin can be foil.Conductive paint is a kind of paint that is used to spray, and can play the effect of conduction behind the dry formation paint film, often adopts composite particles such as cupric, silver as conductive particle, has excellent conductive performance, even nonmetallic surface also can be realized electrically connecting through conductive paint.Enamelled coating stable performance behind the dry solidification is sprayed on that surface of the work is fine and smooth level and smooth equally with the fine silver conductive paint to have the conducting particles of good electric conductivity, exquisiteness to guarantee the security of electronic devices and components.
Wherein, the touch recognition circuit adopts the integrated chip of signal transformation.
A kind of control method like above-mentioned household electrical appliance head may further comprise the steps:
Microcontroller begins to control movable part according to the parent oneself state of user instruction or said household electrical appliance head;
Microcontroller senses touch identification circuit output signal classification if the signal classification of touch recognition circuit output is SA, is represented the current object contact touch electrode that do not have; If the signal of touch recognition circuit output is SB, represent the current object contact touch electrode that has;
Signal classification according to the output of touch recognition circuit is confirmed the programs executed by microcontroller classification; If the output signal of touch recognition circuit is SA; Microcontroller is carried out normal control program PA, promptly by the software function module of normal flow control Driver Circuit according to the setup parameter operation; If the signal of touch recognition circuit output is SB, microcontroller execute exception defence program PB, promptly system is the software function module of accidentally injuring the human body that is contacted when preventing the movable part action;
Whether microcontroller judges movable part in the target location, if the movable part current location is identical with the target location of microcontroller setting, then this movable control is accomplished, and microcontroller withdraws from the movable part control procedure; If the movable part current location is different with the target location that microcontroller is set, then microcontroller returns and carries out senses touch identification circuit output signal classification step.
Touch electrode, touch recognition circuit, microcontroller and driving circuit are set in the head structure; Movable part receives driving circuit that operation power is provided; Microcontroller is through the operation of control Driver Circuit and then control movable part; Simultaneously microcontroller has or not human body to touch operation Different control program according to touch electrode, thus the human body that mechanical injuries contact with movable part when preventing that movable part from moving by normal mode.
Air line distance position or angle position when wherein, the target location of said movable part and current location are for running.
Compared with prior art, the invention has the beneficial effects as follows:
Household electrical appliance head of the present invention comprises movable part, touch electrode, touch recognition circuit and microcontroller; Through movable part surface, outside or periphery touch electrode at head; Touch recognition circuit output signal classification; Microcontroller detects earlier before driving the movable part action whether object or person body region contact touch electrode is arranged; If object or person body region contact touch electrode is arranged then the execute exception defence program, otherwise carry out normal control program, thereby avoid the household electrical appliance head when running, the human body contact site to be damaged.
The control method of household electrical appliance head of the present invention can realize above-mentioned effect, has avoided the user having a mind to or the situation servant is for a change or cause unnecessary limb injury when stoping the method for operation of household electrical appliance head unintentionally.
Description of drawings
Fig. 1 is the structured flowchart of household electrical appliance head of the present invention;
Fig. 2 is the structural representation of floor type air-conditioner head among the embodiment;
Fig. 3 is the control method process flow diagram of household electrical appliance head of the present invention;
Fig. 4 is the circuit structure diagram of the preferred touch induction circuit of the present invention;
Fig. 5 is the circuit structure diagram of preferred microcontroller of the present invention and driving circuit.
Embodiment
Below in conjunction with embodiment the present invention is further described.
Extremely shown in Figure 5 like Fig. 1 is the embodiment of household electrical appliance head of the present invention; Comprise movable part 10, be used to drive movable part 10 driving circuit 11, be laid in movable part 10 surface or outside touch electrode 20, touch recognition circuit 30 and microcontrollers 40; Driving circuit 11 is electrically connected with microcontroller 40, and the input end of touch recognition circuit 30 is electrically connected with touch electrode 20, output terminal is electrically connected with microcontroller 40.
The control method of this household electrical appliance head is illustrated in figure 3 as the process flow diagram of this control method, may further comprise the steps:
The first step, S600 movable part control beginning.
Second step, microcontroller senses touch identification circuit output signal classification.
If the signal classification of touch recognition circuit 30 outputs is SA, represent the current object or person body region contact touch electrode 20 that do not have; If the signal of touch recognition circuit 30 outputs is SB, represent the current object or person body region contact touch electrode 20 that has;
In the 3rd step, S610 confirms the programs executed by microcontroller classification according to the signal classification of touch recognition circuit output.
If the output signal of touch recognition circuit 30 is SA, microcontroller 40 is carried out normal control program PA S620, promptly by the software function module of normal flow control Driver Circuit 11 according to the setup parameter operation; If the signal of touch recognition circuit 30 outputs is SB, microcontroller 40 execute exception defence program PB S640, promptly system is the software function module of accidentally injuring the human body that is contacted when preventing movable part 10 actions;
In the 4th step, the S630 microcontroller judges that whether movable part is in the target location.
No matter current active parts 10 are in halted state or running status, will judge all whether the current location of movable part 10 is identical with the target location.If movable part 10 current locations are identical with the target location that microcontroller 40 is set, then this movable control is accomplished, and microcontroller 40 withdraws from the movable part control procedure; If movable part 10 current locations are different with the target location that microcontroller 40 is set, then microcontroller 40 returns and carries out senses touch identification circuit 30 output signal classification steps.Air line distance position or angle position when wherein, the target location of movable part 10 and current location are for running.
Normal control program PA S620; The target location of the movable part of confirming according to microcontroller 40 10 and the current location of movable part 10 are confirmed the traffic direction of current active parts 10, and the execution time that combine microcontroller 40 to be scheduled to are controlled the displacement or the rotational angle of this movable part 10;
Abnormal protection program PB S640, according to the kind and the moving direction of movable part 10, operation suspension movable part 10 or inverted running movable part 10 1 segment distances or certain rotational angle.With the object or person body region that reaches protection or avoid contacting in movable part 10 operation process by mechanical damage.
In the 5th step, the control of S650 movable part finishes.
Be illustrated in figure 2 as the structural representation of floor type air-conditioner head, preferably this head is explained the position relation of touch electrode 20 of the present invention and movable part 10.Wind blade is a movable part 10, and microcontroller 40 is shared with the microcontroller of air conditioner, and touch electrode 20 is the metallic coating at wind blade edge.During the wind blade operation; If any human body (as: finger) when touching wind blade; Then can touch touch electrode 20 simultaneously; Microcontroller 40 just can detect wind blade and have the human body touch signal, and then the operation exception defence program, prevents the human body generation mechanical injuries (as: mechanicalness crushes) that contact with wind blade.
Be illustrated in figure 4 as the circuit structure diagram of preferred touch induction circuit.
Touch induction circuit is that the activation signal with human body and touch electrode is transformed to the electric signal that microprocessor can be discerned; The circuit structure diagram of preferred touch induction circuit can detect simultaneously two independently movable part whether the human body contact is arranged; TOUCH_POLE1 connects the touch electrode of first said movable part surface or movable part periphery, and TOUCH_POLE2 connects the touch electrode of second said movable part surface or movable part periphery.Touch circuit signal by TOUCH_OUT1 and TOUCH_OUT2 output, microcontroller can judge whether that with TOUCH_OUT2 (corresponding TO UCH_POLE2) signal human body contacts TOUCH_POLE1 and TOUCH_POLE2 through TOUCH_OUT1 (corresponding TO UCH_POLE1).
Preferably, the touch recognition circuit adopts integrated chip as the signal transformation core, to improve accuracy and the reliability to the touch electrode input.As shown in Figure 4, the TS02N of preferred preferred ADS of touch induction circuit is as the signal transformation chip of touch recognition circuit.
Be illustrated in figure 5 as the circuit structure diagram of preferred microcontroller and driving circuit.
The circuit structure diagram of microcontroller and driving circuit comprises the power source stepper motor and the chip for driving that is connected microcontroller chip and stepper motor of microcontroller chip, movable part.Microcontroller has been reserved the I/O (input is failed/outbound port) of some, is used to connect user instruction input media or display device.Microcontroller is provided with two the special I/O that connect the touch induction circuit input signal, i.e. TOUCH_OUT1 and TOUCH_OUT2.When the TOUCH_OUT1 in the micro-control circuit works with TOUCH_OUT2 directly with the touch recognition circuit in TOUCH_OUT1 be connected with the TOUCH_OUT2 port.Whether microcontroller can have human body to contact through the signal determining movable part of TOUCH_OUT1 and TOUCH_OUT2 port.
Micro-control circuit comprises the power source stepper motor of movable part, and the stepper motor of movable part power source preferably uses the four phase eight beat stepper motor, to improve the effective control of microcontroller to movable part.The preferred integrated drive chips ULN2003 of driving circuit that connects microcontroller and movable part power part.
The circuit structure diagram of microcontroller and driving circuit can be controlled the power source stepper motor of two movable parts simultaneously, and the power source stepper motor of two movable parts can separately also can related be controlled.
The present embodiment head is before the movable part operation, and whether have object or person body region touch movable part, if having the object or person body region to touch movable part then the execute exception defence program if detecting earlier; If do not have the object or person body region to touch movable part then carry out normal control program.
Obviously, can there be a lot of accommodations in the present invention, for example: can only arrange a touch electrode and movable part; Also can arrange a plurality of touch electrodes and a plurality of power part simultaneously.The movable part power source of head provided by the invention can be a stepper motor, also can be other motors.The invention is not restricted to the kind of touch electrode, quantity, movable part power source type and the movable part power source quantity of touch electrode.The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All any modifications of within spirit of the present invention and principle, being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. household electrical appliance head; It is characterized in that: comprise movable part (10), be used to drive movable part driving circuit (11), be laid in movable part surface or outside touch electrode (20), touch recognition circuit (30) and microcontroller (40); Said driving circuit is electrically connected with microcontroller, and the input end of touch recognition circuit is electrically connected with touch electrode, output terminal is electrically connected with microcontroller.
2. household electrical appliance head according to claim 1 is characterized in that: said touch electrode is a conductive layer.
3. household electrical appliance head according to claim 2 is characterized in that: said conductive layer is conductive paint or conduction thin skin.
4. household electrical appliance head according to claim 1 is characterized in that: said touch recognition circuit adopts the integrated chip of signal transformation.
5. the control method of a household electrical appliance head as claimed in claim 1 is characterized in that, may further comprise the steps:
Microcontroller begins to control movable part according to the parent oneself state of user instruction or said household electrical appliance head;
Microcontroller senses touch identification circuit output signal classification if the signal classification of touch recognition circuit output is SA, is represented the current object contact touch electrode that do not have; If the signal of touch recognition circuit output is SB, represent the current object contact touch electrode that has;
Signal classification according to the output of touch recognition circuit is confirmed the programs executed by microcontroller classification; If the output signal of touch recognition circuit is SA; Microcontroller is carried out normal control program PA, is the software function module that moves according to setup parameter by the normal flow control Driver Circuit; If the signal of touch recognition circuit output is SB, microcontroller execute exception defence program PB is the software function module of accidentally injuring the human body that is contacted when preventing the movable part action for system;
Whether microcontroller judges movable part in the target location, if the movable part current location is identical with the target location of microcontroller setting, then this movable control is accomplished, and microcontroller withdraws from the movable part control procedure; If the movable part current location is different with the target location that microcontroller is set, then microcontroller returns and carries out senses touch identification circuit output signal classification step.
6. the control method of household electrical appliance head according to claim 5 is characterized in that: air line distance position or angle position when the target location of said movable part and current location are running.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102428180A CN102354266A (en) | 2011-08-23 | 2011-08-23 | Moving device for household appliance and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102428180A CN102354266A (en) | 2011-08-23 | 2011-08-23 | Moving device for household appliance and control method thereof |
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| Publication Number | Publication Date |
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| CN102354266A true CN102354266A (en) | 2012-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102428180A Pending CN102354266A (en) | 2011-08-23 | 2011-08-23 | Moving device for household appliance and control method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1532424A (en) * | 2003-03-19 | 2004-09-29 | 深圳市联创实业有限公司 | Method for stopping rotation by touching fan and product |
| CN2813101Y (en) * | 2005-09-02 | 2006-09-06 | 世庆实业股份有限公司 | Paper mincing machine safety device with emergency stop function |
| CN201024824Y (en) * | 2007-01-05 | 2008-02-20 | 范家华 | Electric vehicle window clamping-proof device |
| CN101532361A (en) * | 2008-03-11 | 2009-09-16 | 巨虹电子股份有限公司 | Anti-clamping device and anti-clamping method thereof |
-
2011
- 2011-08-23 CN CN2011102428180A patent/CN102354266A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1532424A (en) * | 2003-03-19 | 2004-09-29 | 深圳市联创实业有限公司 | Method for stopping rotation by touching fan and product |
| CN2813101Y (en) * | 2005-09-02 | 2006-09-06 | 世庆实业股份有限公司 | Paper mincing machine safety device with emergency stop function |
| CN201024824Y (en) * | 2007-01-05 | 2008-02-20 | 范家华 | Electric vehicle window clamping-proof device |
| CN101532361A (en) * | 2008-03-11 | 2009-09-16 | 巨虹电子股份有限公司 | Anti-clamping device and anti-clamping method thereof |
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| ASS | Succession or assignment of patent right |
Owner name: MIDEA GROUP CO., LTD. Free format text: FORMER OWNER: MEIDI ELECTRIC APPLIANCES CO., LTD., GUANGDONG Effective date: 20131202 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20131202 Address after: 528311 Guangdong, Foshan, Beijiao, the United States, the United States and the United States on the avenue of the United States, the headquarters of the United States building B floor, District, 26-28 Applicant after: Midea Group Co., Ltd. Address before: 528311 Beijiao, Foshan, Shunde District, the town of Guangdong, the United States Avenue, No. 6 Applicant before: Meidi Electric Appliances Co., Ltd., Guangdong |
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120215 |