CN105759206A - Fan state detection protection system - Google Patents
Fan state detection protection system Download PDFInfo
- Publication number
- CN105759206A CN105759206A CN201610097376.8A CN201610097376A CN105759206A CN 105759206 A CN105759206 A CN 105759206A CN 201610097376 A CN201610097376 A CN 201610097376A CN 105759206 A CN105759206 A CN 105759206A
- Authority
- CN
- China
- Prior art keywords
- protection system
- measure loop
- dry
- fan
- blower fan
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
- G01R31/343—Testing dynamo-electric machines in operation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/66—Testing of connections, e.g. of plugs or non-disconnectable joints
- G01R31/67—Testing the correctness of wire connections in electric apparatus or circuits
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a fan state detection protection system and a control circuit. The detection protection system is applied to a dry-cleaning machine or a clothes dryer, and is used for detecting whether a fan works properly. The detection protection system comprises a first detection loop and a second detection loop. The first detection loop is used for detecting whether the outlet terminal of a power supply device of the dry-cleaning machine or the clothes dryer is effectively connected with a wiring terminal of the fan, and sending a power supply abnormality signal in a timely manner when the two terminals are not effectively connected. The second detection loop is used for detecting the output signal of the first detection loop, and outputting a fan abnormality signal reflecting that the fan of the dry-cleaning machine or the clothes dryer does not work properly in a timely manner when detecting that the first detection loop outputs a power supply abnormality signal, wherein the fan abnormality signal is used for making the dry-cleaning machine or the clothes dryer shut down under emergency and making a heater stop heating so as to avoid overheating or fire accidents caused by the fact that the fan is shut down and cannot bring the heat of the heater away.
Description
Technical field
The application relates to household electrical appliance technical field, more particularly, it relates to the detection protection system of a kind of fan condition.
Background technology
Dry-cleaning all-in-one or dryer are when opening clothes-drying mode, and blower fan switchs K by a forceful electric power and is controlled, and control circuit figure is as shown in Figure 1.Under normal circumstances after forceful electric power switch K conducting, motor M will drive fan operation, it is achieved recycle heat circulates.If the outlet terminal CN2 of the binding post CN1 of motor M and power supply gets loose; when starting clothes-drying mode; forceful electric power switch K also can close; but the motor M of blower fan can not start owing to cannot obtain electric; heat can not pass through blower fan circulation; just it is concentrated near heater, if at this moment not having corresponding protective measure to will result in overheated or fire accident.
Summary of the invention
In view of this; the application provides the detection protection system of a kind of fan condition; for whether its blower fan when heating to dry-cleaning all-in-one or dryer works well and detects, to avoid blower fan to get loose the heat that cannot take away heater because of binding post and cause overheated or fire accident.
To achieve these goals, it is proposed that scheme as follows:
The detection protection system of a kind of fan condition, is applied to dry-cleaning all-in-one or dryer, the first measure loop and the second measure loop, wherein:
Whether the binding post of described first measure loop outlet terminal and described dry-cleaning all-in-one or the blower fan of described dryer for detecting electric supply installation is effectively connected, the abnormal abnormal electrical power supply signal of power supply of output reflection blower fan when not being effectively connect；
Described second measure loop is for detecting the output signal of described first measure loop, and when described first measure loop exports described abnormal electrical power supply signal, output reflects the abnormal blower fan abnormal signal of work of described blower fan；
Described blower fan abnormal signal is used for controlling described dry-cleaning all-in-one or described dryer emergency shutdown.
Optionally, described first measure loop includes the first terminals, the second terminals and bleeder circuit, wherein:
Described first terminals are connected with the live wire of the single-phase alternating current for inputting described electric supply installation；
Described second terminals are connected with the zero terminal of described outlet terminal, and the zero terminal of the zero terminal of described outlet terminal and described binding post matches, the zero terminal ground connection of described binding post；
Described bleeder circuit includes the first divider resistance and the second divider resistance；
One end of described first divider resistance is connected with described first terminals, the other end is connected with one end of one end divider resistance of described second divider resistance；
The other end of described second divider resistance is connected with described second terminals, is used for producing described abnormal electrical power supply signal.
Optionally, described first measure loop also includes diode, wherein:
Described diode and described second divider resistance are connected in parallel, and the positive pole of described diode is connected with described second terminals.
Optionally, described first measure loop includes the first filter capacitor, wherein:
Described first filter capacitor and described second divider resistance are connected in parallel.
Optionally, described second measure loop includes pull-up resistor, switch element, output resistance and signal output part, wherein:
One end of described pull-up resistor is used for receiving driving voltage, the other end is connected with one end of one end of described switch element, described output resistance；
The other end ground connection of described switch element；
The other end of described output resistance is connected with described signal output part.
Optionally, described switch element is audion or optocoupler.
Optionally, also include the second filter capacitor, wherein:
One end of described second filter capacitor is connected with the other end of described pull-up resistor, other end ground connection.
A kind of control circuit, is applied to dry-cleaning all-in-one or dryer, is provided with detection protection system as above.
Can be seen that from above-mentioned technical scheme; this application discloses the detection of a kind of fan condition protection system and control circuit; this detection protection system is applied in dry-cleaning all-in-one or dryer, for detecting whether its blower fan is working properly, including the first measure loop and the second measure loop.Whether the first measure loop is connected with the binding post chivalrous person of blower fan for the outlet terminal detecting the electric supply installation of dry-cleaning all-in-one or dryer, when both are not effectively connect, sends abnormal electrical power supply signal in time；Second measure loop is for detecting the output signal of the first measure loop; when the first measure loop output abnormal electrical power supply signal being detected; the blower fan abnormal blower fan abnormal signal of work of the dry-cleaning all-in-one of output reflection in time or dryer; this blower fan abnormal signal is used for controlling dry-cleaning all-in-one or dryer emergency shutdown; heater is made to stop heating such that it is able to avoid to take away the heat of heater because of shutdown due to blower fan and the overheated or fire accident that causes.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present application or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the application, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the circuit diagram of this kind of control circuit dry-cleaning all-in-one or dryer；
The schematic diagram of the detection protection system of a kind of fan condition that Fig. 2 provides for the embodiment of the present application；
The schematic diagram of the detection protection system of a kind of fan condition that Fig. 3 provides for another embodiment of the application；
The circuit diagram of a kind of control circuit that Fig. 4 provides for the another embodiment of the application.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present application, the technical scheme in the embodiment of the present application is clearly and completely described, it is clear that described embodiment is only some embodiments of the present application, rather than whole embodiments.Based on the embodiment in the application, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of the application protection.
Embodiment one
The schematic diagram of the detection protection system of a kind of fan condition that Fig. 2 provides for the embodiment of the present application.
The detection protection system of the fan condition that the present embodiment provides is applied to dry-cleaning all-in-one or dryer; for whether dry-cleaning all-in-one or the blower fan of dryer are effectively connected with electric supply installation detect; whether the binding post of the outlet terminal and blower fan that are specially detection electric supply installation gets loose, and sends corresponding blower fan abnormal signal in time when getting loose.As in figure 2 it is shown, the detection protection system of this fan condition includes the first measure loop 10 and the second measure loop 20.
Whether the binding post of first measure loop 10 motor for detecting blower fan is effectively connected with the outlet terminal of power supply circuits, when both effectively connect, motor can receive forceful electric power from electric supply installation when the forceful electric power of electric supply installation switchs K conducting such that it is able to drives fan operation when dry-cleaning all-in-one or clothes-drying mode opened by dryer；When both can not effectively connect, motor is electric owing to cannot obtain from electric supply installation, the heat of dry-cleaning all-in-one or the heater of dryer also cannot be taken away by blower fan, at this moment overheated or pyrophoricity accident will be there is, now the first measure loop 10 exports abnormal electrical power supply signal, and this signal shows that the motor of blower fan cannot just often-have-electricity under clothes-drying mode.
Second measure loop 20 is connected with the first measure loop 10, for the signal of the first measure loop 10 output is detected.When the first measure loop 10 exports abnormal electrical power supply signal, namely the second measure loop 20 exports blower fan abnormal signal, and this blower fan abnormal signal shows that the blower fan work of dry-cleaning all-in-one or dryer is abnormal.The controller of dry-cleaning all-in-one or dryer can utilize blower fan abnormal signal to control dry-cleaning all-in-one or dryer emergency shutdown, thus avoiding the heat of heater to take away due to the wind that cannot be blown out by blower fan and overheated or fire accident occurs.
Can be seen that from technique scheme; present embodiments provide the detection protection system of a kind of fan condition; this detection protection system is applied in dry-cleaning all-in-one or dryer, for detecting whether its blower fan is working properly, including the first measure loop and the second measure loop.Whether the first measure loop is connected with the binding post chivalrous person of blower fan for the outlet terminal detecting the electric supply installation of dry-cleaning all-in-one or dryer, when both are not effectively connect, sends abnormal electrical power supply signal in time；Second measure loop is for detecting the output signal of the first measure loop; when the first measure loop output abnormal electrical power supply signal being detected; the blower fan abnormal blower fan abnormal signal of work of the dry-cleaning all-in-one of output reflection in time or dryer; this blower fan abnormal signal is used for controlling dry-cleaning all-in-one or dryer emergency shutdown; heater is made to stop heating such that it is able to avoid to take away the heat of heater because of shutdown due to blower fan and the overheated or fire accident that causes.
It addition, the controller of dry-cleaning all-in-one or dryer according to the timely signal an alert of blower fan abnormal signal, can also prompt the user with blower fan and break down such that it is able to make user take appropriate measures in time and fault is disposed.
Embodiment two
The schematic diagram of the detection protection system of a kind of fan condition that Fig. 3 provides for another embodiment of the application.
As it is shown on figure 3, the detection protection system that the present embodiment provides includes the first measure loop 10 and the second measure loop 20.
First measure loop 10 includes first binding post the 11, second binding post 12 and bleeder circuit, and wherein bleeder circuit includes the first divider resistance R11 and the second divider resistance R12.
First binding post 11 is for connecting the live wire ACL of the single-phase alternating current of electric supply installation, and the second binding post 12 is for connecting the zero terminal CN21 of the outlet terminal CN2 of electric supply installation.The binding post CN1 of the outlet terminal CN2 of electric supply installation and the motor M of blower fan matches, when the two is plugged in together, motor M can effectively electrically connect with electric supply installation, effectively works at electric supply installation, and during forceful electric power switch K Guan Bi, motor M both can drive blower fan to bring into operation.
First divider resistance R11 and the second divider resistance R12 series connection, one end of first divider resistance R11 is connected with the first binding post, the other end of the other end and the second divider resistance R12 is connected, and the other end of the second divider resistance R12 is then connected with the second binding post.If the binding post CN1 of the outlet terminal CN2 of electric supply installation and motor M is effectively connected, the zero terminal CN21 of outlet terminal CN2 then can pass through the zero line N ground connection of electrode M, from forming loop between the first binding post and the second binding post, the dividing potential drop that then voltage on the first binding post 11 of input is produced by bleeder circuit on the second divider resistance R12 is a default magnitude of voltage, on the contrary, the dividing potential drop that then the second divider resistance R12 produces is zero, owing to the result of dividing potential drop can reflect connection terminal CN2 and binding post CN1 occur, therefore can using optional to this magnitude of voltage preset or no-voltage one as this abnormal electrical power supply signal, the present embodiment select no-voltage as this abnormal electrical power supply signal, this magnitude of voltage preset corresponding then can regard power supply normal signal as.
An all right diode D and the first filter capacitor C1 in parallel at the two ends of the second divider resistance R12, diode D can make divider resistance only play dividing potential drop effect at the positive half-wave of live wire, negative half-wave is then inoperative, thus is avoided that switch element is damaged by backward voltage；First filter capacitor C1 is then for filtering clutter.
Second measure loop includes pull-up resistor R21, switch element T, output resistance R22 and signal output part 21.
One end of pull-up resistor R21 is then connected with one end of one end of switch element T, output resistance R21 respectively for receiving+5V driving voltage, the other end, and the other end of switch element T then ground connection, the other end of output resistance R21 is connected with signal output part.When the first measure loop output is as the no-voltage of abnormal electrical power supply signal; switch element ends; signal output part output high level signal; here using this high level signal as this blower fan abnormal signal, when controller receives this blower fan abnormal signal by controlling dry-cleaning all-in-one or dryer emergency shutdown just it can be avoided that heater dry combustion method causes overheated or fire accident.Can a second filter capacitor C2 in parallel at the two ends of switch element, it is possible to filtering clutter.
Switch element T can be audion or optocoupler, selects optocoupler in the present embodiment, and forceful electric power signal and controller can be effectively isolated by optocoupler, and one avoids forceful electric power that controller is damaged.
It addition, control can also when receiving this blower fan abnormal signal timely signal an alert, to point out user to keep in repair in time, to avoid affecting normal use.
Embodiment three
The circuit diagram of a kind of control circuit that Fig. 4 provides for the another embodiment of the application.
The control circuit that the present embodiment provides is for being controlled dry-cleaning all-in-one or dryer; it is provided with the detection protection system of the fan condition that an embodiment provides; detection protection system owing to arranging can to whether blower fan be effectively connected with electric supply installation; therefore, it is possible to avoid dry-cleaning all-in-one or dryer dry combustion method when blower fan does not start such that it is able to avoid the occurrence of overheated or fire accident.
In this specification, each embodiment adopts the mode gone forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually referring to.Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the application.The multiple amendment of these embodiments be will be apparent from for those skilled in the art, and generic principles defined herein when without departing from spirit herein or scope, can realize in other embodiments.Therefore, the application is not intended to be limited to the embodiments shown herein, and is to fit to the widest scope consistent with principles disclosed herein and features of novelty.
Claims (8)
1. a detection protection system for fan condition, is applied to dry-cleaning all-in-one or dryer, it is characterised in that the first measure loop and the second measure loop, wherein:
Whether the binding post of described first measure loop outlet terminal and described dry-cleaning all-in-one or the blower fan of described dryer for detecting electric supply installation is effectively connected, the abnormal abnormal electrical power supply signal of power supply of output reflection blower fan when not being effectively connect；
Described second measure loop is for detecting the output signal of described first measure loop, and when described first measure loop exports described abnormal electrical power supply signal, output reflects the abnormal blower fan abnormal signal of work of described blower fan；
Described blower fan abnormal signal is used for controlling described dry-cleaning all-in-one or described dryer emergency shutdown.
2. detection protection system as claimed in claim 1, it is characterised in that described first measure loop includes the first terminals, the second terminals and bleeder circuit, wherein:
Described first terminals are connected with the live wire of the single-phase alternating current for inputting described electric supply installation；
Described second terminals are connected with the zero terminal of described outlet terminal, and the zero terminal of the zero terminal of described outlet terminal and described binding post matches, the zero terminal ground connection of described binding post；
Described bleeder circuit includes the first divider resistance and the second divider resistance；
One end of described first divider resistance is connected with described first terminals, the other end is connected with one end of one end divider resistance of described second divider resistance；
The other end of described second divider resistance is connected with described second terminals, is used for producing described abnormal electrical power supply signal.
3. detection protection system as claimed in claim 2, it is characterised in that described first measure loop also includes diode, wherein:
Described diode and described second divider resistance are connected in parallel, and the positive pole of described diode is connected with described second terminals.
4. detection protection system as claimed in claim 2, it is characterised in that described first measure loop includes the first filter capacitor, wherein:
Described first filter capacitor and described second divider resistance are connected in parallel.
5. detection protection system as claimed in claim 1, it is characterised in that described second measure loop includes pull-up resistor, switch element, output resistance and signal output part, wherein:
One end of described pull-up resistor is used for receiving driving voltage, the other end is connected with one end of one end of described switch element, described output resistance；
The other end ground connection of described switch element；
The other end of described output resistance is connected with described signal output part.
6. detection protection system as claimed in claim 5, it is characterised in that described switch element is audion or optocoupler.
7. detection protection system as claimed in claim 5, it is characterised in that also include the second filter capacitor, wherein:
One end of described second filter capacitor is connected with the other end of described pull-up resistor, other end ground connection.
8. a control circuit, is applied to dry-cleaning all-in-one or dryer, it is characterised in that arranges and protects system just like the detection described in any one of claim 1～7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610097376.8A CN105759206B (en) | 2016-02-22 | 2016-02-22 | A kind of detection protection system of fan condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610097376.8A CN105759206B (en) | 2016-02-22 | 2016-02-22 | A kind of detection protection system of fan condition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105759206A true CN105759206A (en) | 2016-07-13 |
| CN105759206B CN105759206B (en) | 2019-01-25 |
Family
ID=56331059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610097376.8A Active CN105759206B (en) | 2016-02-22 | 2016-02-22 | A kind of detection protection system of fan condition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105759206B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101173474A (en) * | 2006-11-01 | 2008-05-07 | 海尔集团公司 | Method for checking failures of washing machine electric motor loop and clothes amount detection circuit |
| US20090079438A1 (en) * | 2007-09-26 | 2009-03-26 | Nokia Corporation | System and method for testing electrical connection |
| CN103293985A (en) * | 2012-02-28 | 2013-09-11 | 海尔集团公司 | Zero-power-consumption standby circuit |
| CN204178188U (en) * | 2014-11-13 | 2015-02-25 | 青岛海尔科技有限公司 | A kind of standby zero power consumption circuit and washing machine |
| CN104862935A (en) * | 2014-02-21 | 2015-08-26 | 海尔集团公司 | Clothes dryer and control method thereof |
-
2016
- 2016-02-22 CN CN201610097376.8A patent/CN105759206B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101173474A (en) * | 2006-11-01 | 2008-05-07 | 海尔集团公司 | Method for checking failures of washing machine electric motor loop and clothes amount detection circuit |
| US20090079438A1 (en) * | 2007-09-26 | 2009-03-26 | Nokia Corporation | System and method for testing electrical connection |
| CN103293985A (en) * | 2012-02-28 | 2013-09-11 | 海尔集团公司 | Zero-power-consumption standby circuit |
| CN104862935A (en) * | 2014-02-21 | 2015-08-26 | 海尔集团公司 | Clothes dryer and control method thereof |
| CN204178188U (en) * | 2014-11-13 | 2015-02-25 | 青岛海尔科技有限公司 | A kind of standby zero power consumption circuit and washing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105759206B (en) | 2019-01-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3273558B1 (en) | Electric grill with current protection circuitry | |
| US9915442B2 (en) | Monitoring faults in the heating circuit of an appliance | |
| KR101518663B1 (en) | Hair drier | |
| CN205724849U (en) | A kind of protection module of ECM electric machine controller | |
| CN104104059A (en) | Microwave oven, safety protection circuit and safety protection control method thereof | |
| US11486596B2 (en) | Air conditioner | |
| KR20090048305A (en) | Heating wire controller | |
| CN105759206A (en) | Fan state detection protection system | |
| US20080225447A1 (en) | Motor start circuit | |
| WO2017190295A1 (en) | Automatic voltage switching circuit and electric hair drier | |
| CN105755781B (en) | A kind of drying mechanism and washing machine | |
| KR200445400Y1 (en) | Driving device of magnetic field heating wire for bedding | |
| WO2019064617A1 (en) | Home electric appliance | |
| CN210270579U (en) | Novel heating wire protection circuit | |
| CA2931067C (en) | Electronically commutated motor | |
| KR100803511B1 (en) | Temperature controller and temperature control method | |
| CN207491225U (en) | Heat-preservation control circuit and electric heating equipment | |
| CN220509087U (en) | Temperature controller operating condition detection circuit | |
| CN213817209U (en) | Spontaneous combustion preventing circuit and electromagnetic heating appliance | |
| US20210210951A1 (en) | Power device protection | |
| KR102190006B1 (en) | Power converting apparatus and home appliance including the same | |
| KR100942500B1 (en) | Protection circuit for regulator temperature of heating coil | |
| CN208623325U (en) | overvoltage protection circuit and electric kettle | |
| KR20230008363A (en) | Power converting apparatus and home appliance including the same | |
| CN116548065A (en) | Electrical appliance with safety system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |