CN105759206B - A kind of detection protection system of fan condition - Google Patents
A kind of detection protection system of fan condition Download PDFInfo
- Publication number
- CN105759206B CN105759206B CN201610097376.8A CN201610097376A CN105759206B CN 105759206 B CN105759206 B CN 105759206B CN 201610097376 A CN201610097376 A CN 201610097376A CN 105759206 B CN105759206 B CN 105759206B
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- Prior art keywords
- blower
- measure loop
- signal
- power supply
- abnormal
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- 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
Abstract
This application discloses a kind of detection of fan condition protection system and control circuit, which protects system to be applied in dry-cleaning all-in-one machine or dryer, for being detected to whether its blower is working properly, including the first measure loop and the second measure loop.Whether the outlet terminal that the first measure loop is used to detect the power supply unit of dry-cleaning all-in-one machine or dryer connect with the connecting terminal chivalrous person of blower, when the two is not effectively to connect, issues abnormal electrical power supply signal in time；Second measure loop is for detecting the output signal of the first measure loop; when detecting that the first measure loop exports abnormal electrical power supply signal; the abnormal blower abnormal signal of blower work of the dry-cleaning all-in-one machine of output reflection in time or dryer; the blower abnormal signal is for controlling dry-cleaning all-in-one machine or dryer emergency shutdown; heater is set to stop heating, overheat or fire accident caused by the heat so as to avoid not taking away heater because of shutdown due to blower.
Description
Technical field
This application involves field of home appliance technology, system is protected in the detection more specifically to a kind of fan condition.
Background technique
All-in-one machine or dryer are dry-cleaned when opening clothes-drying mode, blower is controlled by a forceful electric power switch K,
Electric operation 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, realize heat
Circulation.If the connecting terminal CN1 of motor M and the outlet terminal CN2 of power supply are loosened, when starting clothes-drying mode,
Forceful electric power switch K can be also closed, but the motor M of blower cannot start due to that can not obtain electric, and heat cannot be recycled by blower
Circulation, is just concentrated near heater, if at this moment will result in overheat or fire accident without corresponding safeguard measure.
Summary of the invention
In view of this, the application provides a kind of detection protection system of fan condition, for dry-cleaning all-in-one machine or drying
Whether its blower works well and is detected machine when heated, can not take away heater because connecting terminal loosens to avoid blower
Heat and cause overheat or fire accident.
To achieve the goals above, it is proposed that scheme it is as follows:
System is protected in a kind of detection of fan condition, is applied to dry-cleaning all-in-one machine or dryer, the first measure loop and the
Two measure loops, in which:
First measure loop is used to detect the outlet terminal and the dry-cleaning all-in-one machine or the drying of power supply unit
Whether the connecting terminal of the blower of machine effectively connects, the abnormal power supply of power supply of output reflection blower when not being effectively to connect
Abnormal signal；
Second measure loop is for detecting the output signal of first measure loop, when first inspection
When survey time road exports the abnormal electrical power supply signal, output reflects the abnormal blower abnormal signal of work of the blower；
The blower abnormal signal is for controlling the dry-cleaning all-in-one machine or the dryer emergency shutdown.
Optionally, first measure loop includes the first terminals, the second terminals and bleeder circuit, in which:
First terminals are connected with the firewire of the single-phase alternating current for inputting the power supply unit；
Second terminals are connected with the zero terminal of the outlet terminal, the zero terminal of the outlet terminal with
The zero terminal of the connecting terminal matches, the zero terminal ground connection of the connecting terminal；
The bleeder circuit includes the first divider resistance and the second divider resistance；
One end of first divider resistance is connected with first terminals, the other end and second divider resistance
One end of one end divider resistance be connected；
The other end of second divider resistance is connected with second terminals, for generating the abnormal electrical power supply letter
Number.
Optionally, first measure loop further includes diode, in which:
The diode is connected in parallel with second divider resistance, and the anode of the diode and second wiring
End is connected.
Optionally, first measure loop includes the first filter capacitor, in which:
First filter capacitor is connected in parallel with second divider resistance.
Optionally, second measure loop includes pull-up resistor, switch element, output resistance and signal output end,
In:
One end of the pull-up resistor is used to receive one end, described defeated of driving voltage, the other end and the switch element
One end of resistance is connected out；
The other end of the switch element is grounded；
The other end of the output resistance is connected with the signal output end.
Optionally, the switch element is triode or optocoupler.
It optionally, further include the second filter capacitor, in which:
One end of second filter capacitor is connected with the other end of the pull-up resistor, the other end is grounded.
A kind of control circuit is applied to dry-cleaning all-in-one machine or dryer, is provided with detection protection system as described above.
It can be seen from the above technical scheme that this application discloses a kind of detection of fan condition protection system and controls
Circuit, which protects system to be applied in dry-cleaning all-in-one machine or dryer, for examining to whether its blower is working properly
It surveys, including the first measure loop and the second measure loop.First measure loop is used to detect the confession of dry-cleaning all-in-one machine or dryer
Whether the outlet terminal of electric installation connect with the connecting terminal chivalrous person of blower, when the two is not effectively to connect, issues supply in time
Electrical anomaly signal；Second measure loop is for detecting the output signal of the first measure loop, when detecting the first detection
When the output abnormal electrical power supply signal of circuit, the abnormal blower of blower work of the dry-cleaning all-in-one machine of output reflection in time or dryer is different
Regular signal, the blower abnormal signal dry-clean all-in-one machine or dryer emergency shutdown for controlling, and heater is made to stop heating, thus
It can be avoided and overheat caused by the heat that can not take away heater because of shutdown due to blower or fire accident.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of application for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of this circuit diagram for the control circuit for dry-cleaning all-in-one machine or dryer；
Fig. 2 is a kind of schematic diagram of the detection protection system of fan condition provided by the embodiments of the present application；
Fig. 3 is a kind of schematic diagram of the detection protection system for fan condition that another embodiment of the application provides；
Fig. 4 is a kind of circuit diagram for control circuit that the another embodiment of the application provides.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.It is based on
Embodiment in the application, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall in the protection scope of this application.
Embodiment one
Fig. 2 is a kind of schematic diagram of the detection protection system of fan condition provided by the embodiments of the present application.
The detection protection system of fan condition provided in this embodiment is applied to dry-cleaning all-in-one machine or dryer, for pair
The blower of dry-cleaning all-in-one machine or dryer is detected with whether power supply unit effectively connect, and specially detects going out for power supply unit
Whether the connecting terminal of line terminals and blower gets loose, and issues corresponding blower abnormal signal in time when getting loose.Such as
Shown in Fig. 2, the detection protection system of the fan condition includes the first measure loop 10 and the second measure loop 20.
Whether connecting terminal of first measure loop 10 for the motor of detection blower fan has with the outlet terminal of power supply circuit
Effect connection, when the two effectively connects, motor can be received when the forceful electric power switch K of power supply unit is connected from power supply unit
Forceful electric power, so as to drive fan operation when dry-cleaning all-in-one machine or dryer opens clothes-drying mode；When the two cannot be effective
Motor is electric due to that can not obtain from power supply unit when connection, and blower cannot will also dry-clean the heat of the heater of all-in-one machine or dryer
Amount is taken away, and overheat or pyrophoricity accident at this moment will occur, and the first measure loop 10 exports abnormal electrical power supply signal, the signal table at this time
The motor of bright blower can not positive often-have-electricity under clothes-drying mode.
Second measure loop 20 is connected with the first measure loop 10, the signal for being exported to the first measure loop 10 into
Row detection.When the first measure loop 10 exports abnormal electrical power supply signal, the second measure loop 20 exports blower abnormal signal, should
Blower abnormal signal shows to dry-clean all-in-one machine or the blower work of dryer is abnormal.Dry-clean the controller of all-in-one machine or dryer
It can use blower abnormal signal control dry-cleaning all-in-one machine or dryer emergency shutdown, to avoid the heat of heater due to nothing
Method is taken away by the wind that blower is blown out and overheat or fire accident occurs.
It can be seen from the above technical proposal that present embodiments providing a kind of detection protection system of fan condition, the inspection
Protection system is surveyed to be applied in dry-cleaning all-in-one machine or dryer, for being detected to whether its blower is working properly, including the
One measure loop and the second measure loop.First measure loop is used to detect going out for the power supply unit of dry-cleaning all-in-one machine or dryer
Whether line terminals connect with the connecting terminal chivalrous person of blower, when the two is not effectively to connect, issue abnormal electrical power supply signal in time；
Second measure loop is powered for detecting to the output signal of the first measure loop when detecting that the first measure loop exports
When abnormal signal, the abnormal blower abnormal signal of blower work of the dry-cleaning all-in-one machine of output reflection in time or dryer, the wind
Machine abnormal signal makes heater stop heating for controlling dry-cleaning all-in-one machine or dryer emergency shutdown, so as to avoid by
Overheat or fire accident caused by blower can not take away the heat of heater because of shutdown.
In addition, the controller of dry-cleaning all-in-one machine or dryer can also sound an alarm in time letter according to blower abnormal signal
Number, blower failure is prompted the user with, failure is disposed so as to make user take appropriate measures in time.
Embodiment two
Fig. 3 is a kind of schematic diagram of the detection protection system for fan condition that another embodiment of the application provides.
As shown in figure 3, detection protection system provided in this embodiment includes the first measure loop 10 and the second measure loop
20。
First measure loop 10 includes the first connecting terminal 11, the second connecting terminal 12 and bleeder circuit, wherein partial pressure electricity
Road includes the first divider resistance R11 and the second divider resistance R12.
First connecting terminal 11 is used to connect the firewire ACL of the single-phase alternating current of power supply unit, and the second connecting terminal 12 is used
In the zero terminal CN21 of the outlet terminal CN2 of connection power supply unit.The outlet terminal CN2 of the power supply unit and motor M of blower
Connecting terminal CN1 match, when the two is plugged in together, motor M can be effectively electrically connected with power supply unit, for Denso
It is set effective work, and when forceful electric power switch K closure, motor M can both drive blower to bring into operation.
First divider resistance R11 and the second divider resistance R12 series connection, one end of the first divider resistance R11 and the first wiring
Terminal is connected, the other end is connected with the other end of the second divider resistance R12, the other end of the second divider resistance R12 then with
Second connecting terminal is connected.If the connecting terminal CN1 of the outlet terminal CN2 and motor M of power supply unit are effectively connect, outlet
The zero terminal CN21 of terminal CN2 can be then grounded by the zero curve N of electrode M, from the first connecting terminal and the second connecting terminal
Between be formed into a loop, then bleeder circuit generates the voltage on the first connecting terminal 11 of input on the second divider resistance R12
Partial pressure be a preset voltage value, on the contrary, then the second divider resistance R12 generate partial pressure be zero, due to the result of partial pressure
It is able to reflect the connection for terminal CN2 Yu connecting terminal CN1 occur, therefore can be by the preset voltage value or no-voltage
Optional one is used as the abnormal electrical power supply signal, selects no-voltage as the abnormal electrical power supply signal in the present embodiment, this is pre- accordingly
If voltage value can then regard power supply normal signal as.
It can be with one diode D of parallel connection and the first filter capacitor C1, diode D at the both ends of the second divider resistance R12
Divider resistance can be made only to play the role of partial pressure in the positive half-wave of firewire, and negative half-wave does not work then, thus is avoided that reversed electricity
Pressure damages switch element；First filter capacitor C1 is then used for filtering clutter.
Second measure loop includes pull-up resistor R21, switch element T, output resistance R22 and signal output end 21.
One end of pull-up resistor R21 for receive+5V driving voltage, the other end then respectively with one end of switch element T, defeated
One end of resistance R21 is connected out, and the other end of switch element T is then grounded, the other end and signal output end of output resistance R21
It is connected.When the first measure loop exports the no-voltage as abnormal electrical power supply signal, switch element ends, and signal output end is defeated
High level signal out, here using the high level signal as the blower abnormal signal, when controller receives the blower abnormal signal
When by control dry-cleaning all-in-one machine or dryer emergency shutdown just can be avoided heater dry combustion method cause overheat or fire accident.
The both ends of switch element can one the second filter capacitor C2 of parallel connection, can be with filtering clutter.
Switch element T can be triode or optocoupler, select optocoupler in the present embodiment, optocoupler can by forceful electric power signal with
Controller is effectively isolated, and one avoids forceful electric power from damaging controller.
In addition, control can also when receiving the blower abnormal signal timely signal an alert, with prompt user and
When repair, to avoid influence normal use.
Embodiment three
Fig. 4 is a kind of circuit diagram for control circuit that the another embodiment of the application provides.
Control circuit provided in this embodiment is used to control dry-cleaning all-in-one machine or dryer, is provided with an implementation
System is protected in the detection for the fan condition that example provides, due to setting detection protection system can to blower and power supply unit whether
Effectively connection, therefore can be avoided dry-cleaning all-in-one machine or dryer dry combustion method in the state that blower does not start, so as to avoid
Appearance overheats or fire accident.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.To the upper of the disclosed embodiments
It states bright, can be realized professional and technical personnel in the field or using the application.Various modifications to these embodiments are to ability
It will be apparent for the professional technician in domain, the general principles defined herein can not depart from the application's
In the case where spirit or scope, realize in other embodiments.Therefore, the application be not intended to be limited to it is shown in this article these
Embodiment, and it is to fit to the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. system is protected in a kind of detection of fan condition, it is applied to dry-cleaning all-in-one machine or dryer, which is characterized in that the first detection
Circuit and the second measure loop, in which:
First measure loop is used to detect the outlet terminal and the dry-cleaning all-in-one machine or the dryer of power supply unit
Whether the connecting terminal of blower effectively connects, the abnormal abnormal electrical power supply of power supply of output reflection blower when not being effectively to connect
Signal；
Second measure loop detects back for detecting to the output signal of first measure loop, when described first
When road exports the abnormal electrical power supply signal, output reflects the abnormal blower abnormal signal of work of the blower；
The blower abnormal signal is for controlling the dry-cleaning all-in-one machine or the dryer emergency shutdown；
First measure loop includes the first terminals, the second terminals and bleeder circuit, in which:
First terminals are connected with the firewire of the single-phase alternating current for inputting the power supply unit；
Second terminals are connected with the zero terminal of the outlet terminal, the zero terminal of the outlet terminal with it is described
The zero terminal of connecting terminal matches, the zero terminal ground connection of the connecting terminal；
The bleeder circuit includes the first divider resistance and the second divider resistance；
One end of first divider resistance is connected with first terminals, the other end and second divider resistance one
End is connected；
The other end of second divider resistance is connected with second terminals, for generating the abnormal electrical power supply signal.
2. detection protection system as described in claim 1, which is characterized in that first measure loop further includes diode,
Wherein:
The diode is connected in parallel with second divider resistance, and the anode of the diode and the second terminals phase
Connection.
3. detection protection system as described in claim 1, which is characterized in that first measure loop includes the first filtered electrical
Hold, in which:
First filter capacitor is connected in parallel with second divider resistance.
4. as described in claim 1 detection protection system, which is characterized in that second measure loop include pull-up resistor,
Switch element, output resistance and signal output end, in which:
One end of the pull-up resistor is used to receive one end of driving voltage, the other end and the switch element, output electricity
One end of resistance is connected；
The other end of the switch element is grounded；
The other end of the output resistance is connected with the signal output end.
5. detection protection system as claimed in claim 4, which is characterized in that the switch element is triode or optocoupler.
6. detection protection system as claimed in claim 5, which is characterized in that further include the second filter capacitor, in which:
One end of second filter capacitor is connected with the other end of the pull-up resistor, the other end is grounded.
7. a kind of control circuit is applied to dry-cleaning all-in-one machine or dryer, which is characterized in that be arranged just like claim 1~6 times
System is protected in detection described in one.
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 CN105759206A (en) | 2016-07-13 |
| CN105759206B true CN105759206B (en) | 2019-01-25 |
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| 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 |
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| CN (1) | CN105759206B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101173474B (en) * | 2006-11-01 | 2011-11-30 | 海尔集团公司 | Method for checking failures of washing machine electric motor loop and clothes amount detection circuit |
| US7834640B2 (en) * | 2007-09-26 | 2010-11-16 | Nokia Corporation | System and method for testing electrical connection |
| CN103293985B (en) * | 2012-02-28 | 2016-01-20 | 海尔集团公司 | Zero consumption standby circuit |
| CN104862935B (en) * | 2014-02-21 | 2018-10-26 | 海尔集团公司 | A kind of dryer and its control method |
| 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 |
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| CN105759206A (en) | 2016-07-13 |
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