CN105671878A - Washing machine and draining control device and draining control method thereof - Google Patents
Washing machine and draining control device and draining control method thereof Download PDFInfo
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- CN105671878A CN105671878A CN201410655286.7A CN201410655286A CN105671878A CN 105671878 A CN105671878 A CN 105671878A CN 201410655286 A CN201410655286 A CN 201410655286A CN 105671878 A CN105671878 A CN 105671878A
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Abstract
The invention discloses a washing machine draining control device; the washing machine comprises an upper draining pump and a lower draining tractor; the draining control device comprises the following elements: a first control switch circuit and a second control switch circuit, wherein the first control switch circuit is used for controlling connection/disconnection of the tractor, and the second control switch circuit is used for controlling connection/disconnection of the draining pump; a delay circuit used for delaying a draining control signal for a preset time and sending the signal to the second control switch circuit, thus controlling the draining pump to be connected; a controller respectively sending the draining control signal to the first control switch circuit and the delay circuit through a same port, thus respectively controlling the washing machine to do upper and lower draining. The washing machine draining control device can simultaneously control the washing machine to do upper and lower draining, and the controller (MCU) uses less resource; the control is more reliable; the invention also discloses the washing machine and a washing machine draining control method.
Description
Technical field
The present invention relates to technical field of electric appliances, particularly to drain control unit and the water discharge control method of a kind of washing machine, and there is the washing machine of this drain control unit.
Background technology
For having upper draining and the washing machine of lower draining simultaneously, the control process of draining generally comprises two kinds of methods, wherein, first method is: electric-controlled plate MCU (MicroControlUnit, micro-control unit) export draining control signal respectively by two ports, to control the upper draining of washing machine and lower draining respectively. The control sequential of MCU software is, first controls the traction apparatus action of lower draining to realize lower draining, controls Water pumping installation and close to realize upper draining after such as 5-6 second time delay a period of time. Second method is: the hardware resource of MCU is not enough, and MCU, by a port output draining control signal, controls traction apparatus and the Water pumping installation action of lower draining, to carry out upper draining and lower draining simultaneously simultaneously.
But, all there is shortcoming in above two method, for instance. For first method, taking MCU software and hardware resources more, when the electric-controlled plate of washing machine is designed, the MCU that cost performance is higher may abandon because of inadequate resource considering. For second method, because Water pumping installation and the action simultaneously of lower water discharge dragging device, there is the possibility arranging not water outlet in Water pumping installation.
Summary of the invention
The purpose of the present invention is intended to solve at least to a certain extent above-mentioned technical problem.
For this, it is an object of the present invention to propose the drain control unit of a kind of washing machine, the drain control unit of this washing machine can realize controlling while draining and lower draining on washing machine, and controller such as MCU to take resource few, it addition, control relatively reliable.
Further object is that a kind of washing machine of proposition, this washing machine has above-mentioned drain control unit.
Another object of the present invention is in that to propose the water discharge control method of a kind of washing machine.
For reaching above-mentioned purpose, an aspect of of the present present invention embodiment proposes the drain control unit of a kind of washing machine, described washing machine includes the draining pump for upper draining and the traction apparatus for lower draining, described drain control unit includes: first controls on-off circuit and second controls on-off circuit, described first controls on-off circuit for controlling the break-make of described traction apparatus, and described second controls on-off circuit for controlling the break-make of described draining pump;Delay circuit, described delay circuit is for sending after draining is controlled signal lag Preset Time to described second control on-off circuit to control the connection of described draining pump; Controller, described draining control signal is respectively sent to described first by same port and controls switch and delay circuit by described controller, carries out lower draining and upper draining controlling described washing machine respectively.
The drain control unit of washing machine according to embodiments of the present invention, controller only needs a port output draining control signal, the software and hardware resources taken can be reduced, and by delay circuit, draining control signal is carried out time delay, draining and the sequencing contro of lower draining can be realized, by hardware controls, reliability is higher.
Further, described first controls on-off circuit includes the first resistance and the first bidirectional triode thyristor, and wherein, one end of described first resistance is connected with described controller, and the other end of described first resistance is connected with the control end of described first bidirectional triode thyristor; First end of described first bidirectional triode thyristor is connected with one end of power supply, and the second end of described first bidirectional triode thyristor is connected with one end of described traction apparatus, and the other end of described traction apparatus is connected with the other end of described power supply; Described second controls on-off circuit includes the second resistance and the second bidirectional triode thyristor, and wherein, one end of described second resistance is connected with described delay circuit, and the other end of described second resistance is connected with the control end of described second bidirectional triode thyristor; First end of described second bidirectional triode thyristor is connected with one end of described power supply, and the second end of described second bidirectional triode thyristor is connected with one end of described draining pump, and the other end of described draining pump is connected with the other end of described power supply.
Further, in some embodiments of the invention, described delay circuit includes: the 3rd resistance, and one end of described 3rd resistance is connected with described controller; First electric capacity, one end of described first electric capacity is connected with the other end of described 3rd resistance, the other end ground connection of described first electric capacity; First audion, the base stage of described first audion is connected with one end of described first electric capacity, and the colelctor electrode of described first audion is connected with one end of described second resistance; 4th resistance, one end of described 4th resistance is connected with the base stage of described first audion, the other end ground connection of described 4th resistance; Second audion, the base stage of described second audion is connected with the emitter stage of described first audion, and the colelctor electrode of described second audion is connected with one end of described second resistance, the grounded emitter of described second audion.
For reaching above-mentioned purpose, another aspect of the present invention embodiment proposes a kind of washing machine, and this washing machine includes the drain control unit of above-described embodiment.
Washing machine according to embodiments of the present invention, by the drain control unit of above-described embodiment, it is possible to achieve carries out upper draining and lower draining simultaneously, meets user's needs, and it is high that draining controls reliability.
For reaching above-mentioned purpose, another aspect of the invention embodiment proposes the water discharge control method of a kind of washing machine, described washing machine includes the draining pump for upper draining and the traction apparatus for lower draining, and described water discharge control method includes: first that same draining control signal is respectively sent to control described traction apparatus break-make controls on-off circuit and delay circuit; Described first controls on-off circuit conducting connects to control described traction apparatus, so that described washing machine carries out lower draining;By described delay circuit by described draining control signal lag Preset Time, and the draining control signal after time delay is sent to controlling the second control on-off circuit that described draining pump is connected; And described second control on-off circuit conducting with control described draining pump connect so that described washing machine carries out upper draining.
The water discharge control method of washing machine according to embodiments of the present invention, by same draining control signal is respectively sent to the first control on-off circuit and delay circuit, on-off circuit conducting can be controlled either directly through first and control traction apparatus action, and then realize the lower draining of washing machine, and realize sequencing contro by delay circuit, the Water pumping installation controlling washing machine after a delay is connected, and then realize the upper draining of washing machine, Water pumping installation can be avoided to arrange the situation of not water outlet, control simple, reliability is higher, it is possible to reduce software takies resource.
Aspect and advantage that the present invention adds will part provide in the following description, and part will become apparent from the description below, or is recognized by the practice of the present invention.
Accompanying drawing explanation
The present invention above-mentioned and/or that add aspect and advantage will be apparent from easy to understand from the following description of the accompanying drawings of embodiments, wherein:
Fig. 1 is the block diagram of the drain control unit of washing machine according to an embodiment of the invention;
Fig. 2 is the schematic diagram of the drain control unit of washing machine according to another embodiment of the invention;
Fig. 3 is the block diagram of washing machine according to an embodiment of the invention; And
Fig. 4 is the flow chart of the water discharge control method of washing machine according to an embodiment of the invention.
Accompanying drawing labelling
Washing machine 200, drain control unit 100, first controls on-off circuit 10, second controls on-off circuit 20, delay circuit 30 and controller 40.
Detailed description of the invention
Being described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of same or like function from start to finish. The embodiment described below with reference to accompanying drawing is illustrative of, and is only used for explaining the present invention, and is not construed as limiting the claims.
Following disclosure provides many different embodiments or example for realizing the different structure of the present invention. In order to simplify disclosure of the invention, hereinafter parts and setting to specific examples are described. Certainly, they are only merely illustrative, and are not intended to the restriction present invention. Additionally, the present invention can in different examples repeat reference numerals and/or letter. This repetition is for purposes of simplicity and clarity, the relation between itself not indicating discussed various embodiment and/or arranging. Additionally, the example of the various specific technique that the invention provides and material, but those of ordinary skill in the art are it can be appreciated that the use of the property of can be applicable to of other techniques and/or other materials. Additionally, fisrt feature described below second feature it " on " structure can include the first and second features and be formed as the embodiment of directly contact, can also including other feature and form the embodiment between the first and second features, such first and second features are not likely to be direct contact.
In describing the invention, it should be noted that, unless otherwise prescribed and limit, term " installation ", " being connected ", " connection " should be interpreted broadly, for instance, can be mechanically connected or electrical connection, can also be the connection of two element internals, it is possible to be joined directly together, it is also possible to be indirectly connected to by intermediary, for the ordinary skill in the art, it is possible to understand the concrete meaning of above-mentioned term as the case may be.
With reference to as explained below and accompanying drawing, it will be clear that these and other aspects of embodiments of the invention. Describe at these and in accompanying drawing, specifically disclose some particular implementation in embodiments of the invention, representing some modes of the principle implementing embodiments of the invention, but it is to be understood that the scope of embodiments of the invention is not limited. On the contrary, all changes within the scope of embodiments of the invention include falling into attached claims spirit and intension, amendment and equivalent.
Describe drain control unit and the water discharge control method of the washing machine proposed according to embodiments of the present invention with reference to the accompanying drawings, and there is the washing machine of this drain control unit.
First the drain control unit of the washing machine of the embodiment of the present invention is illustrated. Fig. 1 is the block diagram of the drain control unit of washing machine according to an embodiment of the invention. Wherein, washing machine includes the draining pump for upper draining and the traction apparatus for lower draining.
As it is shown in figure 1, the drain control unit 100 of the washing machine of the embodiment of the present invention includes the first control on-off circuit 10, second controls on-off circuit 20, delay circuit 30 and controller 40.
Wherein, first controls on-off circuit 10 for controlling the break-make of traction apparatus, and second controls on-off circuit 20 for controlling the break-make of draining pump. When first controls to control when on-off circuit 10 turns on traction apparatus connection, and then washing machine can carry out lower draining, and when second controls to control Water pumping installation action when on-off circuit 20 turns on, and then washing machine can carry out upper draining. But, when first control on-off circuit 10 and second control on-off circuit 20 simultaneously turn on time, exist upper draining can not the possibility of draining smoothly, so the drain control unit 100 of the embodiment of the present invention passes through delay circuit 30 and carries out delays time to control.
Delay circuit 30 is for sending after draining is controlled signal lag Preset Time to the second control on-off circuit 20 to control draining pump connection. In other words, after washing machine carries out the lower draining Preset Time such as 5-6 second, control washing machine and carry out upper draining, thus avoiding draining pump to arrange the situation of not water outlet.
Draining control signal is respectively sent to the first control on-off circuit 10 and delay circuit 30 by same port by controller 40 such as MCU, carries out lower draining and upper draining controlling washing machine respectively. Specifically, the drain control unit 100 of the washing machine of the embodiment of the present invention is applicable to the washing machine with upper draining and lower drain function, upper draining control signal is produced by hardware delay circuit 30, and controller 40 such as MCU is by a port output draining control signal, software and hardware can be reduced and take resource, and then first control on-off circuit 10 and receive conducting after draining control signal, and control traction apparatus and connect, thus realizing the lower draining of washing machine. Delay circuit 30 receives the draining control signal that controller 40 sends simultaneously, by hardware delay circuit 30 time delay Preset Time, draining control signal in output, and then second control on-off circuit 20 and receive conducting after draining control signal, and control draining pump action, thus washing machine realizes upper draining.
Further, Fig. 2 is the schematic diagram of the drain control unit of washing machine according to an embodiment of the invention. As in figure 2 it is shown, the first control on-off circuit 10 includes the first resistance R1 and the first bidirectional triode thyristor TR1.
Wherein, the first resistance R1 is as the driving current-limiting resistance of the first bidirectional triode thyristor TR1, and one end of the first resistance R1 is connected with controller 40, and the other end of the first resistance R1 and the control end 13 of the first bidirectional triode thyristor TR1 connect.First end 11 of the first bidirectional triode thyristor TR1 is connected with one end such as live wire L of power supply, and second end 12 of the first bidirectional triode thyristor TR1 is connected with one end of traction apparatus, and the other end of traction apparatus is connected with the other end of power supply such as zero line N. When controller 40 exports draining control signal, a road draining control signal triggers the first bidirectional triode thyristor TR1 through the first resistance R1, and then controls traction apparatus connection, it is achieved lower draining.
As shown in Figure 2, second controls on-off circuit 20 includes the second resistance R2 and the second bidirectional triode thyristor TR2, wherein, second resistance R2 is as the driving current-limiting resistance of the second bidirectional triode thyristor TR2, one end of second resistance R2 is connected with delay circuit 30, and the other end of the second resistance R2 and the control end 23 of the second bidirectional triode thyristor TR2 connect. First end 21 of the second bidirectional triode thyristor TR2 is connected with one end such as live wire L of power supply, and second end 22 of the second bidirectional triode thyristor TR2 is connected with one end of draining pump, and the other end of draining pump is connected with the other end of power supply such as zero line N. When controller 40 exports draining control signal, another road draining control signal produces upper draining control signal by delay circuit 30, and then triggers the second bidirectional triode thyristor TR2 through the second resistance R2, controls draining pump and connects, thus realizing upper draining.
Further, as in figure 2 it is shown, delay circuit 30 includes the 3rd resistance R3, the first electric capacity C1, the first audion Q1, the 4th resistance R4 and the second audion Q2.
Wherein, one end of the 3rd resistance R3 is connected with controller 40. One end of first electric capacity C1 is connected with the other end of the 3rd resistance R3, the other end ground connection of the first electric capacity C1. One end of the base stage b1 and the first electric capacity C1 of the first audion Q1 connects, and one end of the colelctor electrode c1 and the second resistance R2 of the first audion Q1 connects. One end of 4th resistance R4 is connected with the base stage b1 of the first audion Q1, the other end ground connection of the 4th resistance R4. The emitter e 1 of the base stage b2 and the first audion Q1 of the second audion Q2 connects, and one end of the colelctor electrode c2 and the second resistance R2 of the second audion Q2 connects, emitter e 2 ground connection of the second audion Q2.
Specifically, first audion Q1 and the second audion Q2 is such as NPN audion, if Current amplifier ratio value β > 100, Q1, the Q2 of colelctor electrode and base stage form Darlington triode, it is equivalent to β >=10000 (100*100). The trigger current I of the second bidirectional triode thyristor TR2GT=35mA, if making the second bidirectional triode thyristor TR2 reliably turn on, the collector current of Darlington triode is no less than 35mA. If the saturated set electrode current of Darlington triode is 35mA, the base stage b1 saturation current I of the first audion Q1BS=35/10000 ≈ 3.5 μ A, works as Vbe> 1.4V, the base current I of the first audion Q1b≥IBSTime, Darlington triode saturation conduction, then the second bidirectional triode thyristor TR2 conducting, and then realize upper draining.
In actual design, it is assumed that the draining control signal VI of controller 40 output, low level is maximum can be 0.4V, and high level is minimum can be 4.5V, and maximum is 5V, and output high level is effective. When draining control signal is low level, Darlington triode ends, and the second bidirectional triode thyristor TR2 cut-off, washing machine does not carry out draining. When controller 40 exports high level, a road signal triggers the first bidirectional triode thyristor TR1 by the first resistance R1, controls traction apparatus action, and washing machine carries out lower draining. Meanwhile, the first electric capacity C1 is charged by another road draining control signal by the 3rd resistance R3, and before the first electric capacity C1 voltage reaches 1.4V, Darlington triode ends, and similarly, the second bidirectional triode thyristor TR2 cut-off, washing machine can not carry out upper draining.After the voltage of the first electric capacity C1 reaches 1.4V, Darlington triode turns on, and then triggers the second bidirectional triode thyristor TR2 conducting by the second resistance R2, controls draining pump and connects, and washing machine carries out upper draining.
As from the foregoing, after controller 40 exports draining control signal, one road signal directly controls the first bidirectional triode thyristor TR1 conducting, to control traction apparatus action, washing machine carries out lower draining, separately lead up to delay circuit 30, by the 3rd resistance R3, the first electric capacity C1 is charged, need certain charging interval, that is, after carrying out time delay, namely just can so that the second bidirectional triode thyristor TR2 turns on after reaching conducting voltage, and then control draining pump connection, carry out upper draining, wherein, the charging interval of the first electric capacity C1 and the delay time of delay circuit 30 can be expressed as T=-R*C*ln (VI-1.4))/VI ", the unit of resistance R is ohm, the unit of electric capacity C is F.
If taking C=100 μ F=100*10-6F, R=200K Ω=200*103Ω, VI=5V, can obtain delay time and be about 6.6 seconds, surveys the second bidirectional triode thyristor TR2 and turns on the time delay 6-7 second, meets design requirement.
Additionally, controller such as computer board for traditional washing machine uses 32 foot MCU, all I/O mouths all have been used up, and some overseas customer requires heat water inlet, upper drain function must exist simultaneously, then washing machine needs to increase by a road load control, and former computer board hardware resource is not enough, so or change MCU, software and hardware is developed again, increase MCU cost, affect time to market (TTM), adopt a kind of brand-new mentality of designing, it is being changed without MCU, do not revise under the premise of software, cost very low cost, realize heat water inlet, upper drain function must exist simultaneously. the drain control unit 100 of the washing machine of the embodiment of the present invention can be changed without MCU, when not revising software, reliably realize heat water inlet, upper drain function simultaneously, specifically, what controller 40 can realize the motor of washing machine rotates and reverse control, such that it is able to realize water inlet and draining. it addition, controller 40 adopts a port output draining control signal, it is possible to a reserved road load controls, and intakes as heat, thus meeting user's request.
In sum, the drain control unit of washing machine according to embodiments of the present invention, controller only needs a port output draining control signal, the software and hardware resources taken can be reduced, and by delay circuit, draining control signal is carried out time delay, can realizing draining and the sequencing contro of lower draining, by hardware controls, reliability is higher.
Another aspect of the present invention embodiment also proposes a kind of washing machine. Fig. 3 is the block diagram of washing machine according to an embodiment of the invention.
As it is shown on figure 3, the washing machine 200 of the embodiment of the present invention includes the drain control unit 100 of above-described embodiment.
Washing machine according to embodiments of the present invention, by the drain control unit of above-described embodiment, it is possible to achieve carries out upper draining and lower draining simultaneously, meets user's needs, and it is high that draining controls reliability.
Describe embodiment in accordance with a further aspect of the present invention with reference to the accompanying drawings and propose the water discharge control method of a kind of washing machine.
Fig. 4 is the flow chart of the water discharge control method of washing machine according to an embodiment of the invention. Wherein, washing machine includes the draining pump for upper draining and the traction apparatus for lower draining, say, that the water discharge control method of the washing machine of the embodiment of the present invention is applicable to the washing machine with upper drain function and lower drain function.
As shown in Figure 4, the water discharge control method of the washing machine of the embodiment of the present invention comprises the following steps:
S1, first that same draining control signal is respectively sent to control traction apparatus break-make controls on-off circuit and delay circuit.
Specifically, the controller of washing machine exports same draining control signal by a port, the software and hardware that can reduce controller takies resource, and then draining control signal is divided into two-way, one road signal is sent directly to the first control on-off circuit, another road signal first sends to delay circuit and carries out delays time to control, and then performs step S2 and step S3 respectively.
S2, first controls on-off circuit conducting connects to control traction apparatus, so that washing machine carries out lower draining.
S3, controls signal lag Preset Time by delay circuit by draining, and the draining control signal after time delay is sent to control that draining pump connects second and control on-off circuit.
Carrying out delays time to control for example with the delay circuit shown in Fig. 2, delays time to control process is such as above-mentioned, and time delay Preset Time can reach 6.6 seconds. And realize the control of draining and lower draining sequential on washing machine by hardware delay circuit, it is possible to avoid Water pumping installation to arrange the situation of not water outlet, and control relatively reliable.
S4, second controls on-off circuit conducting connects to control draining pump, so that washing machine carries out upper draining.
The water discharge control method of washing machine according to embodiments of the present invention, by same draining control signal is respectively sent to the first control on-off circuit and delay circuit, on-off circuit conducting can be controlled either directly through first and control traction apparatus action, and then realize the lower draining of washing machine, and realize sequencing contro by delay circuit, the Water pumping installation controlling washing machine after a delay is connected, and then realize the upper draining of washing machine, Water pumping installation can be avoided to arrange the situation of not water outlet, control simple, reliability is higher, it is possible to reduce software takies resource.
Describe in flow chart or in this any process described otherwise above or method and be construed as, represent and include the module of code of executable instruction of one or more step for realizing specific logical function or process, fragment or part, and the scope of the preferred embodiment of the present invention includes other realization, wherein can not press order that is shown or that discuss, including according to involved function by basic mode simultaneously or in the opposite order, performing function, this should be understood by embodiments of the invention person of ordinary skill in the field.
Represent in flow charts or in this logic described otherwise above and/or step, such as, it is considered the sequencing list of executable instruction for realizing logic function, may be embodied in any computer-readable medium, use for instruction execution system, device or equipment (such as computer based system, including the system of processor or other can from instruction execution system, device or equipment instruction fetch the system performing instruction), or use in conjunction with these instruction execution systems, device or equipment. For the purpose of this specification, " computer-readable medium " can be any can comprise, store, communicate, propagate or transmission procedure is for instruction execution system, device or equipment or the device that uses in conjunction with these instruction execution systems, device or equipment. The example more specifically (non-exhaustive list) of computer-readable medium includes following: have the electrical connection section (electronic installation) of one or more wiring, portable computer diskette box (magnetic device), random access memory (RAM), read only memory (ROM), erasable edit read only memory (EPROM or flash memory), fiber device, and portable optic disk read only memory (CDROM).Additionally, computer-readable medium can even is that the paper that can print described program thereon or other suitable media, because can such as by paper or other media be carried out optical scanning, then carry out editing, interpreting or be processed to electronically obtain described program with other suitable methods if desired, be then stored in computer storage.
Should be appreciated that each several part of the present invention can realize with hardware, software, firmware or their combination. In the above-described embodiment, multiple steps or method can realize with the storage software or firmware in memory and by suitable instruction execution system execution. Such as, if realized with hardware, the same in another embodiment, can realize by any one in following technology well known in the art or their combination: there is the discrete logic of logic gates for data signal realizes logic function, there is the special IC of suitable combination logic gate circuit, programmable gate array (PGA), field programmable gate array (FPGA) etc.
Those skilled in the art are appreciated that realizing all or part of step that above-described embodiment method carries can be by the hardware that program carrys out instruction relevant and complete, described program can be stored in a kind of computer-readable recording medium, this program upon execution, including the step one or a combination set of of embodiment of the method.
Additionally, each functional unit in each embodiment of the present invention can be integrated in a processing module, it is also possible to be that unit is individually physically present, it is also possible to two or more unit are integrated in a module. Above-mentioned integrated module both can adopt the form of hardware to realize, it would however also be possible to employ the form of software function module realizes. If described integrated module is using the form realization of software function module and as independent production marketing or use, it is also possible to be stored in a computer read/write memory medium.
Storage medium mentioned above can be read only memory, disk or CD etc.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means in conjunction with this embodiment or example describe are contained at least one embodiment or the example of the present invention. In this manual, the schematic representation of above-mentioned term is not necessarily referring to identical embodiment or example. And, the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiments or example.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, being appreciated that and these embodiments can be carried out multiple change, amendment, replacement and modification without departing from the principles and spirit of the present invention, the scope of the invention and equivalency.
Claims (5)
1. the drain control unit of a washing machine, it is characterised in that described washing machine includes the draining pump for upper draining and the traction apparatus for lower draining, and described drain control unit includes:
First controls on-off circuit and second controls on-off circuit, and described first controls on-off circuit for controlling the break-make of described traction apparatus, and described second controls on-off circuit for controlling the break-make of described draining pump;
Delay circuit, described delay circuit is for sending after draining is controlled signal lag Preset Time to described second control on-off circuit to control the connection of described draining pump;
Controller, described draining control signal is respectively sent to described first by same port and controls on-off circuit and delay circuit by described controller, carries out lower draining and upper draining controlling described washing machine respectively.
2. the drain control unit of washing machine as claimed in claim 1, it is characterised in that
Described first controls on-off circuit includes the first resistance and the first bidirectional triode thyristor, wherein,
One end of described first resistance is connected with described controller, and the other end of described first resistance is connected with the control end of described first bidirectional triode thyristor;
First end of described first bidirectional triode thyristor is connected with one end of power supply, and the second end of described first bidirectional triode thyristor is connected with one end of described traction apparatus, and the other end of described traction apparatus is connected with the other end of described power supply; Described second controls on-off circuit includes the second resistance and the second bidirectional triode thyristor, wherein,
One end of described second resistance is connected with described delay circuit, and the other end of described second resistance is connected with the control end of described second bidirectional triode thyristor;
First end of described second bidirectional triode thyristor is connected with one end of described power supply, and the second end of described second bidirectional triode thyristor is connected with one end of described draining pump, and the other end of described draining pump is connected with the other end of described power supply.
3. the drain control unit of washing machine as claimed in claim 2, it is characterised in that described delay circuit includes:
3rd resistance, one end of described 3rd resistance is connected with described controller;
First electric capacity, one end of described first electric capacity is connected with the other end of described 3rd resistance, the other end ground connection of described first electric capacity;
First audion, the base stage of described first audion is connected with one end of described first electric capacity, and the colelctor electrode of described first audion is connected with one end of described second resistance;
4th resistance, one end of described 4th resistance is connected with the base stage of described first audion, the other end ground connection of described 4th resistance;
Second audion, the base stage of described second audion is connected with the emitter stage of described first audion, and the colelctor electrode of described second audion is connected with one end of described second resistance, the grounded emitter of described second audion.
4. a washing machine, it is characterised in that include the drain control unit as described in claim 1-3.
5. the water discharge control method of a washing machine, it is characterised in that described washing machine includes the draining pump for upper draining and the traction apparatus for lower draining, and described water discharge control method includes:
First that same draining control signal is respectively sent to control described traction apparatus break-make controls on-off circuit and delay circuit;
Described first controls on-off circuit conducting connects to control described traction apparatus, so that described washing machine carries out lower draining;
By described delay circuit by described draining control signal lag Preset Time, and the draining control signal after time delay is sent to controlling the second control on-off circuit that described draining pump is connected; And
Described second controls on-off circuit conducting connects to control described draining pump, so that described washing machine carries out upper draining.
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| CN1567112A (en) * | 2003-06-27 | 2005-01-19 | 金羚电器有限公司 | Water intake and discharge control system for household washing apparatus |
| CN201358379Y (en) * | 2009-02-18 | 2009-12-09 | 龙亚飞 | Water-saving device used in full-automatic washing machine |
| CN102140749A (en) * | 2011-03-16 | 2011-08-03 | 蒋全林 | Washing machine and washing control method thereof |
| CN103866531A (en) * | 2014-03-31 | 2014-06-18 | 常州机电职业技术学院 | Full-automatic washing machine standby automatic power-off device |
-
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- 2014-11-17 CN CN201410655286.7A patent/CN105671878B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0807707A2 (en) * | 1996-05-14 | 1997-11-19 | ELECTROLUX ZANUSSI ELETTRODOMESTICI S.p.A. | Clothes washing maschine with an innovative-type filter monitoring arrangement |
| CN2463426Y (en) * | 2001-02-15 | 2001-12-05 | 杭州松下家用电器有限公司 | Washng machine with double-line draining function |
| CN1567112A (en) * | 2003-06-27 | 2005-01-19 | 金羚电器有限公司 | Water intake and discharge control system for household washing apparatus |
| CN201358379Y (en) * | 2009-02-18 | 2009-12-09 | 龙亚飞 | Water-saving device used in full-automatic washing machine |
| CN102140749A (en) * | 2011-03-16 | 2011-08-03 | 蒋全林 | Washing machine and washing control method thereof |
| CN103866531A (en) * | 2014-03-31 | 2014-06-18 | 常州机电职业技术学院 | Full-automatic washing machine standby automatic power-off device |
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| CN105671878B (en) | 2018-04-20 |
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