CN105544138A - Detection device, impeller type washing machine and control method of impeller type washing machine - Google Patents
Detection device, impeller type washing machine and control method of impeller type washing machine Download PDFInfo
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- CN105544138A CN105544138A CN201610022433.6A CN201610022433A CN105544138A CN 105544138 A CN105544138 A CN 105544138A CN 201610022433 A CN201610022433 A CN 201610022433A CN 105544138 A CN105544138 A CN 105544138A
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- Prior art keywords
- microswitch
- washing machine
- checkout gear
- block
- outer barrel
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Classifications
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F17/00—Washing machines having receptacles, stationary for washing purposes, wherein the washing action is effected solely by circulation or agitation of the washing liquid
- D06F17/06—Washing machines having receptacles, stationary for washing purposes, wherein the washing action is effected solely by circulation or agitation of the washing liquid by rotary impellers
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F33/00—Control of operations performed in washing machines or washer-dryers
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/14—Arrangements for detecting or measuring specific parameters
- D06F34/18—Condition of the laundry, e.g. nature or weight
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/28—Arrangements for program selection, e.g. control panels therefor; Arrangements for indicating program parameters, e.g. the selected program or its progress
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- D06F2202/06—
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- D06F2204/065—
Abstract
The embodiment of the invention provides a detection device, an impeller type washing machine and a control method of impeller type washing machine and relates to the technical field of washing machines. The safety of the impeller type washing machine can be improved. According to the specific scheme, the detection device is located over the upper edge of an outer barrel of the impeller type washing machine and comprises a microswitch and a triggering mechanism, wherein the microswitch is used for outputting state indicating signals to a controller of the impeller type washing machine, and the triggering mechanism is used for triggering the microswitch. When no clothes are tossed out of the upper edge of the outer barrel, the triggering mechanism bears no external force, and the microswitch is in a first working state at the moment; when clothes are tossed out of the upper edge of the outer barrel, the tossed-out clothes impact the triggering mechanism, and the microswitch is in a second working state at the moment. The detection device and the impeller type washing machine are provided.
Description
Technical field
The present invention relates to washing machine technology field, particularly relate to a kind of checkout gear, pulsator washing machine and control method thereof.
Background technology
Pulsator washing machine comprise casing and install with casing top enclose frame.
User carries out control operation by being arranged at the operation interface enclosed on frame to washing machine.In conjunction with and Figure 1A shown in the structural representation enclosing frame, enclose frame 101 top edge position and be provided with operation interface 1011, operation interface comprises display module and operational module, and pulsator washing machine shows the information such as clothes weight, laundry flow process by display module to user.Operational module is also provided with the selection key such as switch, laundry mode, so that user is controlled pulsator washing machine by operational module.Enclose the center hollow out of frame 101, for installing upper cover 1012, user opens upper cover 1012 and load clothing in washing machine.
Comprise inner barrel and outer barrel in casing, clothing is loaded in interior bucket, and in drying process, interior bucket High Rotation Speed, clothing is thrown to the position of the sidewall being close to interior bucket.The sidewall of interior bucket is provided with aperture, is adsorbed on moisture on clothing by being thrown out of interior bucket in the aperture on interior bucket.
Interior bucket embeds in outer barrel, and outer barrel is the barrel-like structure that can be filled with water, and the water thrown away from interior bucket enters outer barrel.
In conjunction with the side view of the pulsator washing machine shown in Figure 1B, the open-topped part of outer barrel is along 102 in outer barrel, and the open-topped part of interior bucket is along 102 on interior bucket, and outer barrel exceeds on interior bucket along 102 along 102.In drying process, along 103 High Rotation Speeds on interior bucket, outer barrel keeps motionless along 102.When interior bucket occurs rocking along 103 in rotation process, outer barrel plays along 102 the effect alleviating and interior bucket rocks along 103 or shakes.
If the clothing in interior bucket is more, in drying process, some position of clothing may be thrown out of along 102 in outer barrel, and the clothing be thrown out of can strike and enclose frame 101, not only possibility damaging laundry, also may damage the parts of pulsator washing machine, cause potential safety hazard.
Summary of the invention
The application provides a kind of checkout gear, pulsator washing machine and control method thereof, can improve the security of pulsator washing machine.
First aspect, a kind of checkout gear is provided, described checkout gear is positioned in pulsator washing machine outer barrel directly over edge, and described checkout gear comprises the microswitch for the controller output state index signal to pulsator washing machine, and for triggering the trigger mechanism of described microswitch;
Described trigger mechanism is not by external force situation, and described microswitch is in the first duty; Described trigger mechanism is by under External Force Acting, and described microswitch is in the second duty.
Second aspect, provides a kind of pulsator washing machine, and described pulsator washing machine comprises the checkout gear that the application's first aspect provides, and also comprises controller.Controller receives the condition indicative signal that described checkout gear exports, when described checkout gear detect clothing be thrown out of in described outer barrel along time, described controller controls described interior bucket reduction rotating speed according to the condition indicative signal that receives.
The third aspect, provides a kind of control method of above-mentioned pulsator washing machine.
The checkout gear that embodiments of the invention provide, pulsator washing machine and control method thereof, when do not have clothing be thrown out of in outer barrel along time, trigger mechanism is not by External Force Acting, now microswitch is in the first duty, when have clothing be thrown out of in outer barrel along time, be thrown out of clothing and clash into trigger mechanism, provide external force, now microswitch is in the second duty.Microswitch is according to the controller output state index signal of duty to pulsator washing machine, control interior bucket by controller according to condition indicative signal and reduce rotating speed, to avoid the damage to clothing or pulsator washing machine parts, thus improve the security of pulsator washing machine.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Figure 1A is the structural representation that existing pulsator washing machine encloses frame;
Figure 1B is the structure side view of existing pulsator washing machine;
The side view of the checkout gear installation site that Fig. 2 embodiments of the invention provide;
The explanation schematic diagram of the checkout gear principle of work and power that Fig. 3 provides for embodiments of the invention;
Another of the checkout gear principle of work and power that Fig. 4 provides for embodiments of the invention illustrates schematic diagram;
Fig. 5 provides by embodiments of the invention the course of work of checkout gear that schematic diagram is described;
Fig. 6 provides by embodiments of the invention the explanation schematic diagram of block shape in checkout gear;
Fig. 7 is embodiments of the invention block shape in checkout gear is provided another schematic diagram is described;
The top view of the checkout gear installation site that Fig. 8 provides for embodiments of the invention;
The checkout gear that Fig. 9 provides for embodiments of the invention install towards explanation schematic diagram;
The control method schematic flow sheet of the pulsator washing machine that Figure 10 provides for embodiments of the invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Whether shown in composition graphs 2, in embodiments of the invention, in pulsator washing machine, install a checkout gear 20, checkout gear 20 is positioned at along directly over 102 in outer barrel, for having clothing to be thrown out of in outer barrel along detecting.When checkout gear 20 detected clothes be thrown out of in outer barrel along 102 time, controller (not drawing in Fig. 2) to pulsator washing machine exports index signal, the index signal exported according to checkout gear 20 by controller, the running status of pulsator washing machine is controlled, comprise bucket in controlling to reduce rotating speed, stall, close down pulsator washing machine etc., improve the security of pulsator washing machine thus.
Embodiment
Embodiments of the invention provide a kind of checkout gear, and shown in composition graphs 3, checkout gear 20 comprises microswitch 201.
Microswitch 201 has two kinds of duties, is respectively the first duty and the second duty.Particularly, microswitch 201 is provided with button 2011, the state of the button 2011 of microswitch 201 comprises to be pressed and ejects two states.First duty and the second duty respectively corresponding button 2011 press and eject this two states one of them.
Checkout gear 20 also comprises trigger mechanism, for changing the duty of microswitch 201.When trigger mechanism is not by external force situation, microswitch is in the first duty.Trigger mechanism is by under External Force Acting, and microswitch is in the second duty.
Concrete, shown in composition graphs 3, the block 203 that trigger mechanism comprises elastic component 202 and extends along 102 in outer barrel, block is connected with microswitch 201 by elastic component 202.Under the elastic force effect of elastic component 202, the button 2011 of microswitch 201 is in down state.
When being thrown out of in outer barrel along the laundry hits of 102 to block 203, the button 2011 of microswitch 201 is in ejection state.
Optionally, elastic component 202 is the torsion spring between microswitch 201 and block 203.Microswitch 201 is connected by torsion spring with block 203.Shown in composition graphs 3, block 203, when original position, to contact with the button 2011 of microswitch 201 by the torsional interaction of torsion spring and presses the button 2011 of microswitch 201.
Shown in composition graphs 4, when the moment of torsion having external force to overcome torsion spring does work to block 203, block 203 is that axle rotates with torsion spring, and now block 203 is separated with the button 2011 of microswitch 201, and the button 2011 of microswitch 201 ejects.Wherein External Force Acting direction as shown by the arrows in Figure 3.
When external force disappears, or when the size of the external force moment of torsion that is not enough to overcome torsion spring does work to block 203, block 203, by the torsional interaction of torsion spring, is got back to state as shown in Figure 3, is pressed the button 2011 of microswitch 201.
The course of work schematic diagram of the checkout gear 20 shown in composition graphs 5, dry in the process of clothing at pulsator washing machine, thered is provided by the clothing be thrown out of block 203 external force of doing work, the clothing be thrown out of clashes into block 203, and the moment of torsion overcoming torsion spring does work to block 203.In Fig. 5, outer barrel represents with a horizontal line along 102, be thrown out of the direction of motion of clothing 601 as shown by the arrows in Figure 5.
When clothing be thrown out of in outer barrel along 102 time, the clothing be thrown out of strikes the block 203 of checkout gear 20, does work to block 203, and block 203 is separated with the button 2011 of microswitch 201, and the button 2011 of microswitch 201 ejects.
After being thrown out of the position of clothing 601 by checkout gear 20 place, block 203 gets back to original position, presses the button 2011 of microswitch 201.
The shape of above-mentioned block 203 is unique, and as preferably, block 203 comprises the blocking surface extended along 102 in outer barrel, and blocking surface is thrown out of the direction along 102 in outer barrel in face of clothing, as be thrown out of in outer barrel along 102 laundry hits block time stress surface.
The shape of block 203 can have multiple design, exemplifies two kinds of optional shapes as follows in the present embodiment:
The first, shown in composition graphs 6, block 203 is straightedge column member, and the bottom surface of straightedge column member is right angled triangle, and the selected incline of straightedge column member is connected with torsion spring.Wherein, selected incline is the incline between the right-angled apices of upper bottom surface and the right-angled apices of bottom surface.Accordingly, the side at the hypotenuse of upper bottom surface and the hypotenuse place of bottom surface, for be thrown out of in outer barrel along 102 laundry hits block 203 time stress surface.
The second, shown in composition graphs 7, block 203 is straightedge column member, and the bottom surface of straightedge column member is L-type, and the selected incline of straightedge column member is connected with torsion spring.Wherein, selected incline is the right-angled apices outside upper bottom surface and the incline between the right-angled apices outside bottom surface.Accordingly, the right-angled apices inside upper bottom surface and the incline between the right-angled apices outside bottom surface, two sides at its place all can as be thrown out of in outer barrel along 102 laundry hits block 203 time stress surface.
The installation site of checkout gear 20 and towards
Side view shown in composition graphs 2 and the top view shown in Fig. 8, checkout gear 20 is installed on pulsator washing machine by fixture (not drawing in Fig. 2 and Fig. 8) and encloses on frame 101, particularly, microswitch 201 is fixed on and encloses on the inner ring wall of frame 101, and block 203 extends along 102 sides in outer barrel.
In other embodiments, above-mentioned detection device 20 can also directly be installed on along on the outer wall of 102 in outer barrel, above-mentioned two kinds of installation sites all can ensure clothing be thrown out of in outer barrel along 102 time, the clothing be thrown out of strikes the block 203 of checkout gear 20.
The installation of checkout gear 20 towards with make to be thrown out of clothing fly out along interior bucket direction of rotation time, collide the stress surface of block 203, and can be advisable to block 203 acting.Preferably, when being thrown out of clothing shock block 203, be thrown out of the direction that clothing clashes into block 203, just the opposite with the rotation trend direction of block 203 under torsion spring torque effect.
Such as, shown in composition graphs 9, the direction of rotation of interior bucket is as shown in the arc curve with arrow in Fig. 9, and be clockwise direction, the direction of motion being thrown out of clothing is identical with interior bucket direction of rotation.Set up coordinate system with the center of circle along 102 in outer barrel, be thrown out of the direction of motion that clothing puts at A (0, R) as Fig. 9 in shown in solid arrow direction, parallel with X-direction and point to X-axis positive direction, wherein R is interior bucket radius.
Checkout gear 20 is arranged on directly over A (0, R) point, and the direction of torsion spring rotating shaft is parallel with Y-axis.Block 203 is when original position, and by torsion spring torque effect, it rotates trend direction as shown in dotted arrow in Fig. 9, parallel with X-direction and point to X-axis negative direction, and to clash into the direction of block 203 just the opposite with being thrown out of clothing.
The signal feedback mechanism of checkout gear 20
Microswitch 201 is connected with the controller of pulsator washing machine, and to controller output state index signal.Condition indicative signal is used to indicate the state of the button 2011 of microswitch 201.
Such as, condition indicative signal is square-wave signal, and when being thrown out of clothing and clashing into block 203, block 203 is separated with the button 2011 of microswitch 201, and the button 2011 of microswitch 201 ejects, and now microswitch 201 exports second electrical level to controller.After being thrown out of the position of clothing by checkout gear 20 place, block 203 gets back to original position, and press the button 2011 of microswitch 201, now microswitch 201 exports the first level to controller.Wherein, when second electrical level is high level, the first level is low level.When second electrical level is low level, the first level is high level.
After the controller of pulsator washing machine receives the condition indicative signal that microswitch 201 exports, bucket rotating speed in controlling according to condition indicative signal, specifically comprises following two kinds of modes:
First kind of way, condition indicative signal is the first level, and this Time Controller determines do not have clothes to be thrown out of, and pulsator washing machine duty is normal, now keeps washing machine normally to work, without the need to changing interior bucket rotating speed.
The second way, condition indicative signal is second electrical level.In this case the duration of controller to second electrical level is detected, and when the duration of second electrical level is in pre-set interval, controller defines clothes and flies out, now the motor of control wave whell laundry machine, reduces rotating speed, reduces to make the rotating speed of interior bucket.After interior bucket reduces rotating speed, be rotated further or stall with comparatively low velocity.
Because pulsator washing machine can shake in running, block 203 is separated with the button 2011 of microswitch 201, and then quick-make again, condition indicative signal is saltus step between second electrical level and the first level constantly.Therefore, when the duration of second electrical level is less than the minimum of a value of pre-set interval, controller determines do not have clothes to be thrown out of, and pulsator washing machine duty is normal.
When the duration of second electrical level exceedes the maximum of pre-set interval, controller determination checkout gear 20 breaks down, now control wave whell laundry machine stops all load operations, comprise and control the functional module such as water discharge dragging device, water intaking valve, spray pump, liquid detergent controller and quit work, and export information warning reminding user and overhaul.
Pre-set interval minimum of a value and maximum are preset value, and a kind of mode setting minimum of a value and maximum is specific as follows:
In in drying process, to be the unit of S, S be bucket rotating speed rev/min.To be the unit of D, D be interior bucket diameter centimetre.To be the unit of W, W be the width being thrown out of clothing centimetre.
The distance that interior bucket sidewall a bit turned in one minute is π DS, and the distance turned within a second is π DS/60, then turn over the time T=W/ of size needed for the distance of W (π DS/60), unit is second.
The unit of T is turned to millisecond, has T=1000W/ (π DS/60)=60*1000W/ π DS.
According to above formula, for the situation of S=600 ~ 800 rev/min, D=35 centimetre, W=4 ~ 10 centimetre.
As S=600 rev/min, W=10 centimetre, T has maximum 9.09 milliseconds.
As S=800 rev/min, W=4 centimetre, T has minimum of a value 2.72 milliseconds.
That is, when there being clothing to be thrown out of, the duration of second electrical level is between 2.72 milliseconds to 9.09 milliseconds.
In a kind of concrete application scenarios, controller is specially one chip microcomputer (English full name: SingleChipMicrocomputer, English abbreviation: MCU), MCU carrys out timing by the periodicity of clock signal, when the clock cycle of MCU is set to 0.1 millisecond, the accuracy of timekeeping of MCU is 0.1 millisecond.According to the accuracy of timekeeping of MCU, be 2.7 milliseconds by the minimum of a value of pre-set interval, the maximum of pre-set interval is 9.1 milliseconds.
When condition indicative signal is second electrical level, the periodicity of MCU to clock signal counts, when the periodicity of clock signal is less than or equal to 27, represent that the duration of second electrical level is less than the minimum of a value of predetermined period, controller determines do not have clothes to be thrown out of, and pulsator washing machine duty is normal.When the periodicity of clock signal is between 27 ~ 91, represent that the duration of second electrical level is in pre-set interval, controller defines clothes and is thrown out of, and bucket stall in controlling.When the periodicity of clock signal is greater than or equal to 91, represent that the duration of second electrical level exceedes the maximum of pre-set interval, controller determination checkout gear 20 breaks down, and control wave whell laundry machine stops all load operations.
Controller, can further according to condition indicative signal outputting alarm signal to while change pulsator washing machine running status.Concrete, when controller define clothes be thrown out of time, show the first information by the display interface of pulsator washing machine, and export buzzerphone.When controller determination checkout gear 20 breaks down, show the second information by the display interface of pulsator washing machine, and export buzzerphone.
Based on the checkout gear that above-described embodiment provides, embodiments of the invention also provide a kind of pulsator washing machine, pulsator washing machine comprises checkout gear and controller, whether checkout gear detects having clothing to be thrown out of, and according to testing result to controller output state index signal, when checkout gear has detected that clothing is thrown out of, the rotating speed of bucket in reducing according to condition indicative signal.
Concrete, condition indicative signal is square-wave signal, and when detecting that clothing is thrown out of, checkout gear exports second electrical level to controller, and when not detecting that clothing is thrown out of, checkout gear exports the first level to controller.
Controller judges the level of condition indicative signal after receiving the condition indicative signal of microswitch output.When condition indicative signal is second electrical level, and the duration of second electrical level in pre-set interval time, define clothes and fly out, now the motor of control wave whell laundry machine, reduce rotating speed or stall, reduce or stall to make the rotating speed of interior bucket.When condition indicative signal is second electrical level, and when the duration of second electrical level exceedes the maximum of pre-set interval, control wave whell laundry machine stops all load operations.
The checkout gear that embodiments of the invention provide and pulsator washing machine, when do not have clothing be thrown out of in outer barrel along time, trigger mechanism is not by External Force Acting, now microswitch is in the first duty, when have clothing be thrown out of in outer barrel along time, be thrown out of clothing and clash into trigger mechanism, provide external force, now microswitch is in the second duty.Microswitch is according to the controller output state index signal of duty to pulsator washing machine, control interior bucket by controller according to condition indicative signal and reduce rotating speed, to avoid the damage to clothing or pulsator washing machine parts, thus improve the security of pulsator washing machine.
Based on the pulsator washing machine that above-described embodiment provides, embodiments of the invention also provide a kind of control method of pulsator washing machine, are applied to the controller of pulsator washing machine.With reference to shown in Figure 10, comprise the following steps:
1001, the condition indicative signal of controller receiving detection device output.
For the concrete function of checkout gear, for the principle of work and power of checkout gear and the explanation of the course of work in reference example, repeat no more herein.
The condition indicative signal that checkout gear exports to controller is specifically as follows square-wave signal, and square-wave signal comprises the first level being used to indicate microswitch first duty and the second electrical level being used to indicate microswitch second duty.Checkout gear indicates testing result respectively by the first level and second electrical level, namely has clothing to be thrown out of edge in outer barrel, does not have clothing to be thrown out of in outer barrel along two kinds of testing results.
If 1002 when detecting that microswitch is in the second duty, in controlling, bucket reduces rotating speed.
When microswitch is in the first duty, represent and do not have clothing to be thrown out of edge in outer barrel, the level now exporting square-wave signal is the first level.When microswitch is in the second duty, indicate that clothing is thrown out of edge in outer barrel, the level now exporting square-wave signal is second electrical level.
When controller according to the level of square-wave signal define clothing fly out time, bucket rotating speed in reducing, comprises bucket in controlling and is rotated further or stall with comparatively low velocity.
Optionally, when determining that the level of square-wave signal is second electrical level, and the duration of second electrical level in pre-set interval time, the interior bucket stall of controller control wave whell laundry machine.
When determining that the level of square-wave signal is second electrical level, and when the duration of second electrical level exceedes the maximum of pre-set interval, controller control wave whell laundry machine stops all load operations.
Further, controller can also according to condition indicative signal outputting alarm signal.The word that alarm signal comprises display interface exports, and can also comprise buzzerphone etc.The duration of second electrical level is different, and the alarm signal of output can corresponding difference.
Whether the control method of the pulsator washing machine that embodiments of the invention provide, by checkout gear to having clothing to be thrown out of along detecting in outer barrel, and according to testing result to controller output state index signal.Controller judges according to condition indicative signal, when define clothing be thrown out of in outer barrel along time, the rotating speed of bucket in reducing, to avoid the damage to clothing or pulsator washing machine parts, thus improves the security of pulsator washing machine.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should described be as the criterion with the protection domain of claim.
Claims (10)
1. a checkout gear, it is characterized in that, described checkout gear is positioned in pulsator washing machine outer barrel directly over edge, and described checkout gear comprises the microswitch for the controller output state index signal to pulsator washing machine, and for triggering the trigger mechanism of described microswitch;
Described trigger mechanism is not by external force situation, and described microswitch is in the first duty; Described trigger mechanism is by under External Force Acting, and described microswitch is in the second duty.
2. checkout gear according to claim 1, is characterized in that,
The block that described trigger mechanism comprises elastic component and edge extends in described outer barrel, described block is connected with described microswitch by described elastic component; Under the elastic force effect of described elastic component, the button of described microswitch is in down state; When the laundry hits being thrown out of edge in described outer barrel is to described block, the button of described microswitch is in ejection state.
3. checkout gear according to claim 2, is characterized in that,
Described elastic component is the torsion spring between described microswitch and described block; Described block is by the torsional interaction of described torsion spring and the button contacts of described microswitch and press the button of described microswitch; When the laundry hits being thrown out of edge in described outer barrel to described block and the moment of torsion overcoming described torsion spring to described block acting time, described block with described torsion spring for axle rotates, described block is separated with the button of described microswitch, and the button of described microswitch ejects.
4. the checkout gear according to Claims 2 or 3, is characterized in that,
Described block comprises along the blocking surface extended in described outer barrel, and described blocking surface is thrown out of the direction on edge in described outer barrel in face of clothing, as the stress surface described in the laundry hits being thrown out of edge in described outer barrel during block.
5. checkout gear according to claim 4, is characterized in that,
Described block is straightedge column member, and the selected incline of described straightedge column member is connected with described torsion spring;
Wherein, the bottom surface of described straightedge column member is right angled triangle, and described selected incline is the incline between the right-angled apices of upper bottom surface and the right-angled apices of bottom surface;
Or the bottom surface of described straightedge column member is L-type, described selected incline is the right-angled apices outside upper bottom surface and the incline between the right-angled apices outside bottom surface.
6. a pulsator washing machine, is characterized in that,
It comprises the checkout gear as described in any one of claim 1-5;
Also comprise controller, for receiving the condition indicative signal that described checkout gear exports, described checkout gear detect clothing be thrown out of in described outer barrel along time, described controller controls described interior bucket reduction rotating speed according to the condition indicative signal that receives.
7. a control method for pulsator washing machine as claimed in claim 6, is characterized in that,
Described controller receives the condition indicative signal that described checkout gear exports; If when detecting that described microswitch is in the second duty, control described interior bucket and reduce rotating speed.
8. the control method of pulsator washing machine according to claim 7, is characterized in that,
Described condition indicative signal is square-wave signal, and described square-wave signal comprises the first level being used to indicate microswitch first duty and the second electrical level being used to indicate microswitch second duty.
9. the control method of pulsator washing machine according to claim 8, is characterized in that, when determining that the level of described square-wave signal is second electrical level, and the duration of second electrical level in pre-set interval time, the interior bucket stall of control wave whell laundry machine.
10. the control method of pulsator washing machine according to claim 8, is characterized in that, also comprises:
When determining that the level of described square-wave signal is second electrical level, and when the duration of second electrical level exceedes the maximum of described pre-set interval, control described pulsator washing machine and stop all load operations.
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| CN1517476A (en) * | 2003-01-20 | 2004-08-04 | Lg������ʽ���� | Washing machine with device for detecting floating clothes and its control method |
| JP2006187452A (en) * | 2005-01-06 | 2006-07-20 | Mitsubishi Electric Corp | Decentering and cloth pop-out detecting device of fully automatic washing machine |
| CN202786817U (en) * | 2012-07-11 | 2013-03-13 | 辛峰 | Safe switch of fully automatic washing machine |
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