CN107237088A - Laundry detergent throwing mechanism and its control method - Google Patents
Laundry detergent throwing mechanism and its control method Download PDFInfo
- Publication number
- CN107237088A CN107237088A CN201610184694.8A CN201610184694A CN107237088A CN 107237088 A CN107237088 A CN 107237088A CN 201610184694 A CN201610184694 A CN 201610184694A CN 107237088 A CN107237088 A CN 107237088A
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- detergent
- electrode
- measuring tank
- delivery device
- liquid level
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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
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/02—Devices for adding soap or other washing agents
- D06F39/022—Devices for adding soap or other washing agents in a liquid state
-
- 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
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/02—Devices for adding soap or other washing agents
- D06F39/028—Arrangements for selectively supplying water to detergent compartments
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
Abstract
The invention discloses laundry detergent throwing mechanism and its control method, belong to washing machine field, solve detergent injected volume in existing washing machine and be difficult to the technical problem accurately controlled, laundry detergent throwing mechanism and its control method that the present invention is provided, including the detergent box for storing detergent, delivery device and the dispensing control unit of control delivery device work, detergent throwing mechanism also includes measuring tank and the detection means for detecting detergent amount in measuring tank, measuring tank has inlet and liquid outlet, inlet connects the output end of delivery device, liquid outlet connects the steel ladle of washing machine, controlling switch is provided with liquid outlet, deliver dispensing speed of the control unit according to the detection signal of change delivery device of detection means, deliver the remaining release time that control unit controls delivery device according to the dispensing speed of delivery device and default injected volume.
Description
【Technical field】
The present invention relates to the detergent throwing mechanism and its control method of a kind of washing machine.
【Background technology】
With advances in technology with the demand of intelligent development, current people get over to the intelligent demand of washing machine
Come higher, family's quantity that clothing is washed using detergent is also more and more, and for the dispensing of detergent,
Two kinds of different modes are delivered automatically with user oneself putting detergent and liquid detergent.Delivered for user is manual
Washing machine for, user for specific detergent injected volume relatively obscure, while operation more bother.
Washing machine with automatic detergent adding function on existing market, including be arranged on washing machine detergent box,
Delivery pump and conveyance conduit, automatic function of delivering is by dispensing control unit is controlled according to the dispensing flow velocity of setting
Delivery pump run time is realized, but in actual use, the flow velocity of detergent can be by use environment temperature
And the influence of the different factors such as the viscosity of detergent species, cause detergent injected volume be unable to reach it is predetermined
Deliver precision.
【The content of the invention】
Present invention solves the technical problem that being to provide a kind of laundry detergent throwing mechanism and its controlling party
Method, improves the precision that detergent is delivered.
In order to solve the above technical problems, the present invention is adopted the following technical scheme that：
Laundry detergent throwing mechanism, including the detergent box for storing detergent, delivery device and
The dispensing control unit of delivery device work is controlled, the detergent throwing mechanism also includes measuring tank and for examining
The detection means of detergent amount in the measuring tank is surveyed, the measuring tank has inlet and liquid outlet, described
Inlet connects the output end of the delivery device, and the liquid outlet connects the steel ladle of washing machine, it is described go out
Controlling switch is provided with liquid mouthful, the dispensing control unit is according to the detection signal of change of the detection means
The dispensing speed of delivery device, dispensing speed and default throwing of the dispensing control unit according to the delivery device
High-volume control the remaining release time of the delivery device.
Detergent is drained into measuring tank by the present invention, detergent amount in detection means detection measuring tank, is delivered
Control unit delivers control unit according to throwing according to the dispensing speed of the detection signal of change delivery device of detection means
The default injected volume control delivery device remaining time run that the dispensing speed and detergent of device are delivered is put,
So as to being accurately controlled the detergent for being discharged into measuring tank, then detergent is put into the Sheng of washing machine from measuring tank
Bucket.The dispensing speed of present invention test washing machine detergent at varying environment temperature and different detergent viscosity
Degree, thus it is avoided that dispensing precision is influenceed by external conditions such as environment temperature, detergent viscosity, with accurate
The amount of putting detergent is controlled, it is close with default injected volume, it is to avoid the waste of detergent, also brings
Optimal clean result.
Also, during detection means was detected, delivery device reaches stable power through operation after a while,
Detergent is full of in the conveyance conduit between detergent box and measuring tank, the part conveyance conduit without the air gap,
To ensure that the delivery device that dispensing control unit is calculated delivers speed as the throwing under the conditions of delivery device stable operation
Speed is put, the unstable influence brought of delivery device initial start stage power is avoided that, is avoided that after previous dispensing
The uneven influence to this dispensing accuracy of measurement of detergent amount remained in conveyance conduit.
Further, the detection means includes being connected with test section, the test section for detecting liquid level
First electrode pair and second electrode pair, the test position of the second electrode pair is higher than the first electrode pair
Test position.The situation of change of detergent amount in measuring tank is perceived by detecting liquid level, water can be avoided
Stream impulse force causes the influence come to detergent amount detection band, and the result of test is more accurate.
Further, the measuring tank is provided with first electrode, second electrode and the 3rd electrode, described first
Electrode and second electrode form the first electrode pair, and the second electrode and the 3rd electrode form described second
Electrode pair, the first electrode, the second electrode and the 3rd electrode have test side, the described 3rd
The test side of electrode is higher than the test side of the first electrode and the test side of the second electrode.First electrode
Pair and second electrode to sharing second electrode, can will reduce the quantity of component, it is convenient to install, and reduce installation
Required precision, the result tested the speed is more accurate.
Further, the first electrode, the second electrode and the 3rd electrode are by the measuring tank top
Portion is inserted vertically into；Or, first electrode, second electrode and the 3rd electrode are laterally inserted by measuring tank sidepiece.
Further, the washing machine also include water intaking valve, the first water inlet branch road of the connection water intaking valve and
Connect the second water inlet branch road of the water intaking valve, the second water inlet branch road connects the steel ladle, described the
One water inlet branch road connects the measuring tank, and the link position of the first water inlet branch road and measuring tank is higher than described
The test side of 3rd electrode.It is arranged such, the liquid detergent in measuring tank can be rinsed, can prevented
Washing, which terminates rear rinse stage, has residual liquid detergent to enter steel ladle and cause to rinse sordid situation,
It can prevent that solidification is formed under the detergent long-term storage of residual causes shadow to next detergent dispensing precision simultaneously
Ring.
Further, the inlet is located at or at the measuring tank sidewall bottom, the inlet
Provided with the check-valves for preventing that detergent from flowing back.When delivery device stops, delivering control unit control check-valves and close
Close, can prevent unnecessary detergent from entering in measuring tank, or prevent the detergent in measuring tank from flowing back,
To ensure the accurate of detergent amount in measuring tank.
Laundry detergent delivers control method, and using above-mentioned detergent throwing mechanism, detergent is delivered
Control method comprises the following steps：
S01) controlling switch and control delivery device are closed, and the dispensing control unit is according to washing
Current cloth amount setting preset water level, the default injected volume V of detergent is set further according to preset water level in clothing machineAlways；
S02) the dispensing control unit controls the delivery device to start the putting detergent into the measuring tank；
S03) detection means detects the first liquid level and the second liquid level of setting in the measuring tank, the throwing
The detergent amount corresponding to default first liquid level and the second liquid level on control unit is put, and described deliver controls
Portion according to the detection signal of detection means record respectively detergent reach first liquid level and the second liquid level when
Between；
S04 it is) described to deliver control unit according to the detergent amount difference of the first liquid level and the second liquid level and reach the
The time difference of one liquid level and the second liquid level calculates the dispensing speed of the delivery device, and is filled according to described deliver
The dispensing speed put and the default injected volume VAlwaysCalculate the remaining release time of the delivery device, the throwing
Put the time that control unit controls the delivery device to continue to run with according to the remaining release time；
S05) the dispensing control unit controls the delivery device to stop work when reaching the remaining release time
Make, and open the controlling switch by the detergent input steel ladle in measuring tank.
Detection means includes being connected with the first electrode for setting the first liquid level on test section, the test section
Pair and for set the second liquid level second electrode pair, set the corresponding detergent amount of first liquid level as V1,
The corresponding detergent amount of second liquid level is V2, second liquid level is higher than the first liquid level, second liquid
Position and detergent amount difference △ V corresponding to the first liquid level are V2-V1, the step S04) and the middle control dispensing
The method of device working time comprises the following steps；
S11) delivery device is opened and to the measuring tank putting detergent, sets the measuring tank wash-in
It is T to wash the time required to agent reaches first liquid level1；
S12) delivery device continues, to the measuring tank putting detergent, to set in the measuring tank and wash
Agent is T the time required to reaching second liquid level2；
S13) the dispensing control unit, which is calculated, obtains the dispensing speed of the delivery device for △ V/ (T2-T1)；
S14) the dispensing control unit, which is calculated, reaches default injected volume V in the measuring tankAlwaysRequired remaining throwing
Put time T3For (VAlways-V2)*(T2-T1)/△ V, the residue that the dispensing control unit is obtained according to calculating
Release time T3The time for controlling the delivery device to continue to run with.
Further, the corresponding detergent amount V of second liquid level2Detergent minimum less than washing machine is delivered
Amount.
Further, the washing machine also includes water intaking valve, connect the water intaking valve the first water inlet branch road and
The second water inlet branch road of the water intaking valve is connected, the first water inlet branch road connects measuring tank, and described second enters
Water branch road connects the steel ladle of washing machine, the step S05) in, the dispensing control unit controls the control
Switch opens the water intaking valve while opening, the current part that the water intaking valve is provided is by the second water inlet
Branch road enters the steel ladle, and another current enter the steel ladle, the Sheng after the measuring tank
Water level is reached after preset water level to described in bucket, and the dispensing control unit controls the water intaking valve to close.
The present invention these features and advantage will be detailed in following embodiment, accompanying drawing exposure.
【Brief description of the drawings】
The present invention is described further below in conjunction with the accompanying drawings：
Fig. 1 reaches structural representation during the first liquid level for the detergent in measuring tank in the present invention；
Fig. 2 reaches structural representation during the second liquid level for the detergent in measuring tank in the present invention；
Fig. 3 is the control method flow chart of laundry detergent throwing mechanism in the present invention；
The process schematic that Fig. 4 runs for laundry detergent throwing mechanism in the present invention.
【Embodiment】
The technical scheme of the embodiment of the present invention is explained and said with reference to the accompanying drawing of the embodiment of the present invention
It is bright, but following embodiments only the preferred embodiments of the present invention, and not all.Based in embodiment
Embodiment, those skilled in the art obtain other embodiments on the premise of creative work is not made,
Belong to protection scope of the present invention.
Laundry detergent throwing mechanism with reference to shown in Fig. 1 and Fig. 2, washing machine includes frame, frame
Steel ladle 3 and detergent throwing mechanism are provided with, detergent throwing mechanism includes detergent box 1, delivery device
4 are used for storing detergent, connect between steel ladle 3 and detergent box 1 with dispensing control unit 71, detergent box 1
Conveyance conduit is connected to, delivery device 4 is arranged on conveyance conduit, delivering control unit 71 is used to control to deliver dress
4 work are put, the detergent in detergent box 1 are discharged when delivery device 4 starts.The delivery device 4 of use
It can realize that detergent is continuously uninterruptedly delivered for the delivery pumps such as gear pump or pulsometer, such delivery pump, and
Final injected volume and the time delivered are directly proportional.
Also, detergent throwing mechanism also includes measuring tank 2 and for detecting detergent amount in measuring tank 2
Set in detection means, frame and a space formation measuring tank 2, measuring tank are limited in measuring box, measuring box
2 have inlet and liquid outlet, and the inlet of measuring tank 2 connects the output end of delivery device 4, measuring tank 2
Liquid outlet connect washing machine steel ladle 3, at the liquid outlet of measuring tank 2 be provided with controlling switch 64, control
Switch under 64 closed modes, the detergent in detergent box 1 is discharged into measuring tank 2 by delivery device 4, examine
The change of detergent amount in device detection measuring tank 2 is surveyed, dispensing control unit 71 is detected according to detection means to be washed
The change difference and corresponding time difference of washing dosage calculate the dispensing speed of delivery device 4, and dress must be delivered calculating
Put after 4 dispensing speed, deliver dispensing speed control of the control unit 71 according to default injected volume and delivery device 4
The remaining release time of delivery device 4 processed, when having run the remaining release time, deliver control unit 71 and control
Delivery device 4 is stopped and opens controlling switch 64 puts into steel ladle 3 by the detergent in measuring tank 2,
With the detergent of the default injected volume of accurate conveying into steel ladle 3.
Wherein, conveyance conduit includes feed tube 61 and drain pipe 62, the connection He of detergent box 1 of feed tube 61
The inlet of measuring tank 2, delivery device 4 is arranged on feed tube 61, and feed tube 61 is connected with measuring tank 2
One end is provided with check-valves 63, and check-valves 63 can use check valve or magnetic valve, and conveying direction is that detergent can only
Flowed from delivery device 4 into measuring tank 2, it is impossible to reverse flow, list is realized by the break-make of check-valves 63
To the purpose of dispensing.The bottom of the connection measuring tank 2 of drain pipe 62 and steel ladle 3, controlling switch 64 are arranged on
Drain pipe 62 is connected one end with measuring tank 2, and controlling switch 64 is magnetic valve, opens controlling switch 64, makes
Detergent in measuring tank 2 is delivered into steel ladle 3.
In order that the dispensing speed of delivery device 4 can accurately be detected according to detection means by delivering control unit 71, this
Detection means in invention preferably includes test section 72, first electrode 81, the electrode of second electrode 82 and the 3rd
83, first electrode 81 and second electrode 82 are electrically connected with and form first electrode pair, first electrode pair and test section
72 connections, the electrode 83 of second electrode 82 and the 3rd is electrically connected with and forms second electrode pair, second electrode pair with
Test section 72 is connected, and first electrode 81, the electrode 83 of second electrode 82 and the 3rd have test side, test side
For the position of induction level at first in the detergent liquid level uphill process in measuring tank 2.In order to simplify measuring tank 2
Processing and facilitate first electrode 81, the assembling of the electrode 83 of second electrode 82 and the 3rd, be originally preferable to carry out
First electrode 81, the electrode 83 of second electrode 82 and the 3rd in example is from the top vertical of measuring tank 2 to underthrust
Enter, now the test side of first electrode 81 is located at the bottommost of first electrode 81, the detection of second electrode 82
End is located at the bottommost of second electrode 82, and the test side of the 3rd electrode 83 is located at the bottommost of the 3rd electrode 83,
The test side of second electrode 82 is higher than the test side of first electrode 81, or its detection with first electrode 81
End is located at same level position, and the test side of the 3rd electrode 83 is higher than the test side of second electrode 82.
In order to avoid the detergent entered from inlet is done to first electrode pair and second electrode to causing to detect
Disturb, the inlet in this preferred embodiment is located at the sidewall bottom of measuring tank 2, and less than the inspection of second electrode 82
End is surveyed, can so avoid directly impacting electrode from the detergent that inlet enters and causing first electrode pair or the
The situation of two electrode pair false triggerings occurs, and improves accuracy of detection.
First electrode pair and second electrode can will reduce the quantity of component to sharing second electrode 82 in the present invention,
It is convenient to install, and the required precision of installation is reduced, the result tested the speed is more accurate.Certainly the present invention other
In embodiment, those skilled in the art be readily conceivable that set more than 3 electrode formation first electrode pair with
Second electrode pair, such as first electrode pair can be made up of first electrode and second electrode, and second electrode pair can be by
3rd electrode and the 4th electrode composition, the bottom level first electrode of one of the 3rd electrode and the 4th electrode
Bottom and second electrode bottom, so design also can reach same effect with the preferred embodiment of the present invention,
This is no longer going to repeat them.In addition, those skilled in the art can also be by first electrode, second electrode and the 3rd
Electrode is in the laterally inserted measuring tank of sidepiece of measuring tank, and second electrode is higher than first electrode, and the 3rd electrode is high
In second electrode, so it is easy to ensure that first electrode, second electrode and the corresponding liquid level of the 3rd electrode and design
Standard is consistent.
For the accuracy of detection of the dispensing speed that improves delivery device 4, in other embodiments of the invention,
More than two electrode pairs can be set, each electrode pair detects the liquid level of different height, first according to two of which phase
The detergent capacity difference of adjacent electrode pair test position and the time difference of triggering calculate the dispensing speed of delivery device,
Then each average value for delivering speed of gained is taken again as the final dispensing speed of delivery device, due to value model
Enclose relatively wide, the dispensing speed of the delivery device measured is also higher.
Further, the washing machine in the present invention also includes supply channel 51, and supply channel 51 is provided with water inlet
Valve 54, water intaking valve 54 can be to be connected with the first water inlet branch road 52 and second on magnetic valve, supply channel 51 to enter
Water branch road 53, the second water inlet branch road 53 connects the steel ladle 3 of washing machine, the first water inlet connection metering of branch road 52
Groove 2.And first the link position of water inlet branch road 52 and measuring tank 2 be higher than the lower end of the 3rd electrode 83, therefore
Before liquid level reaches the bottommost of the 3rd electrode 83, the detergent in measuring tank 2 will not enter the from water inlet
One water inlet branch road 52, it is to avoid the accuracy to test is impacted.The water that supply channel 51 is provided enters from first
Water branch road 52 enters in measuring tank 2, and the detergent in measuring tank 2 and in drain pipe 62 can be rinsed,
It can prevent washing from terminating rear rinse stage and thering is residual detergent to enter steel ladle 3 and cause rinsing sordid
Situation occurs, while can prevent from forming solidification under the detergent long-term storage remained.
With reference to shown in Fig. 3, the detergent in the present invention is delivered control method and comprised the following steps：
S01) controlling switch and control delivery device are closed, and the dispensing control unit is according to washing
Current cloth amount setting preset water level, the default injected volume V of detergent is set further according to preset water level in clothing machineAlways；
S02) the dispensing control unit controls the delivery device to start the putting detergent into the measuring tank；
S03) detection means detects the first liquid level and the second liquid level of setting in the measuring tank, the throwing
The detergent amount corresponding to default first liquid level and the second liquid level on control unit is put, and described deliver controls
Portion according to the detection signal of detection means record respectively detergent reach first liquid level and the second liquid level when
Between；
S04 it is) described to deliver control unit according to the detergent amount difference of the first liquid level and the second liquid level and reach the
The time difference of one liquid level and the second liquid level calculates the dispensing speed of the delivery device, and is filled according to described deliver
The dispensing speed put and the default injected volume VAlwaysCalculate the remaining release time of the delivery device, the throwing
Put the time that control unit controls the delivery device to continue to run with according to the remaining release time；
S05) the dispensing control unit controls the delivery device to stop work when reaching the remaining release time
Make, and open the controlling switch by the detergent input steel ladle in measuring tank.
In above-mentioned 03) step, with the increase of the detergent amount of input in measuring tank 2, when detergent liquid level
When rising to the test side of second electrode 82, now first electrode sets this to conducting and detection trigger portion 72
When detergent liquid level be the first liquid level 91, deliver control unit 71 preset detergent reach the first liquid level 91
When corresponding detergent amount be V1, continue the putting detergent into measuring tank 2, when in the liquid level of detergent
When being raised to the test side of the 3rd electrode 83, now second electrode is to conducting and detection trigger portion 72, and setting is now
Detergent liquid level be the second liquid level 92, deliver control unit 71 preset detergent reach the second liquid level 92
When corresponding detergent amount be V2, the release time for delivering the record detergent of control unit 71 is T2.In order to just
In calculating V1And V2Size, the measuring tank 2 in this preferred embodiment is cuboid, square or cylinder
Deng in the constant shape of short transverse cross-sectional area, now V1For the height and measuring tank 2 of the first liquid level 91
The product of floor space, V2For the product of the height and the floor space of measuring tank 2 of the second liquid level 92.
The second liquid is reached in order to improve detergent liquid level in the dispensing precision of detergent throwing mechanism, measuring tank 2
Corresponding detergent amount V during position 922It is less than the minimum injected volume of detergent, minimum injected volume is washing machine
Minimum preset detergent injected volume, that is, default injected volume VAlways>V2, now, then ensure in detergent
When liquid level reaches the second liquid level 92, delivery device 4 needs to continue to run with gets to default dispensing for a period of time
Measure VAlways.And on this basis, the gap of the bottommost of the 3rd electrode 83 and the bottommost of second electrode 82 is bigger
It is better, make the run time of delivery device 4 longer, when making detergent the second liquid level 92 of arrival, delivery device
4 have reached stable running status, it is ensured that the flow velocity of test is more accurate, and the precision of putting detergent amount is also higher.
In above-mentioned 04) step, when delivery device 4 is opened, the detergent input metering in detergent box 1
In groove 2, when detergent liquid level reaches the first liquid level 91, the dispensing for delivering the record detergent of control unit 71 is arrived
The required time is T during the first liquid level 911, continue the putting detergent into measuring tank 2, when detergent liquid level
It is required when delivering the dispensing of the record detergent of control unit 71 to the second liquid level 92 when reaching the second liquid level 92
Time is T2, deliver detergent capacity of the control unit 71 according to corresponding to the first liquid level 91 and the second liquid level 92
Poor △ V and the time difference triggered twice calculate the dispensing speed of delivery device, wherein △ V=V2-V1, deliver
The dispensing speed of device 4 is △ V/ (T2-T1), dispensing speed is now measured when being that delivery device 4 is stable
Dispensing speed.Due to V2<VAlways, therefore deliver control unit 71 control delivery device 4 need continue to run with
The putting detergent into measuring tank 2, so that the detergent amount in measuring tank 2 reaches VAlways, in measuring tank 2
Detergent amount reaches VAlwaysAfterwards, delivery device 4 is closed.Make detergent amount in measuring tank 2 from V2Reach VAlways,
The remaining time that delivery device 4 is run to needs when closing is T3, and in detergent amount from V2Reach VAlways's
During, the dispensing speed when dispensing speed of delivery device 4 is its stable operation, that is, △ V/
(T2-T1), therefore remaining time T3=(VAlways-V2)*(T2-T1)/△V。
In actual use, due to being influenceed by use environment temperature and the not equal factor of liquid detergent species viscosity,
So that the dispensing speed of detergent is unable to reach default dispensing precision, and the inspection of the dispensing speed in the present invention
Survey computational methods and overcome the defect, the dispensings speed surveyed be delivery device 4 it is stable after dispensing it is fast
Degree, eliminates the unstable influence brought of the initial start stage power of delivery device 4, the essence of the dispensing speed measured
Exactness is higher so that the detergent amount in input steel ladle 3 is more accurate, it is to avoid band when detergent amount is few
The problem of clothes come is remained on clothing when clean or detergent is not excessive.
Certainly, when delivery device 4 work be in perfect condition when, that is, delivery device dispensing speed
Stable state is constantly in, in the case, remaining time T3=VAlways*(T2-T1)/△V-T2。
In above-mentioned 05) step, deliver while the control controlling switch 64 of control unit 71 is opened and open water intaking valve
54, the current part that water intaking valve 54 is provided enters steel ladle 3, another water by the second water inlet branch road 53
Stream enters measuring tank 2 and flow into the water level in steel ladle 3, steel ladle 3 by the first water inlet branch road 52 to be reached
After preset water level, deliver the control water intaking valve 54 of control unit 71 and close.
, below will ginseng in order to be better understood from the running of laundry detergent throwing mechanism in the present invention
Described in detail according to the flow chart shown in Fig. 4：
When initial, controlling switch 64, water intaking valve 54 and delivery device 4 are stored in closed mode, measuring tank 2
Interior detergent-free.
First, washing machine is opened, clothing is delivered into washing machine, sets pre- by the guidance panel of washing machine
If program, deliver control unit 71 and preset water level is set according to current cloth amount in washing machine, deliver control unit 71
The default injected volume V of detergent is calculated according to preset water levelAlways。
Then, deliver the control delivery device 4 of control unit 71 to start, check-valves 63 is opened, and delivers control unit
71 detergent started in timing, detergent box 1 are drained into measuring tank 2 by feed tube 61, in the mistake
Emptied in journey in the liquid level in the space in feed tube 61, detection means detection measuring tank 2, measuring tank 2
When liquid level rises to the first liquid level 91, first electrode is to conducting and detection trigger portion 72, now in measuring tank 2
Detergent capacity is V1, the run time for delivering the record delivery device 4 of control unit 71 is T1。
Then, the putting detergent into measuring tank 2 is continued, now the liquid level in measuring tank 2 is continued to rise to
During the second liquid level 92, second electrode is to conducting and detection trigger portion 72 again, now detergent in measuring tank 2
Capacity is V2, the run time for delivering the record delivery pump 4 of control unit 71 is T2。
Then, dispensing speed of the control unit 71 according to the test result calculations delivery device 4 of detection means is delivered
For △ V/ (T2-T1), control unit 71 is delivered according to default total amount VAlwaysAnd V2Difference and deliver speedometer
Calculate the remaining time T that delivery device 4 is run3, T3=(VAlways-V2)*(T2-T1)/△ V, delivery device 4
In T2The remaining release time T continued after moment3Afterwards, deliver the control delivery device 4 of control unit 71 and stop fortune
OK, and check-valves 63 is closed.T is continued to run with delivery device 43During, it is actual according to measuring tank 2
Space size detergent mobility status be divided into two kinds：A kind of is that the inner space that measuring tank 2 is set is sufficiently large,
Delivery device 4 continues to run with the T until reaching judgement3During the time, the detergent of required dispensing is completely in meter
In measuring tank 2；Another situation be measuring tank 2 set space it is smaller, delivery device 4 continue to run with until
Reach the T of above-mentioned judgement3During time, due to the limitation of the size of measuring tank 2, the detergent delivered
A part is located in measuring tank 2, and another part detergent is overflowed by the first water inlet branch from the upper end of measuring tank 2
The water inlet branch road 53 of road 52 and second is entered in steel ladle 3.
Then, deliver the control of control unit 71 controlling switch 64 to open, the detergent in measuring tank 2, which is discharged into, to be filled with water
Bucket 3, while controlling water intaking valve 54 to open by the water filling into washing machine of supply channel 51, when the water of steel ladle 3
Position reaches after the preset water level of setting that water intaking valve 54 is closed；The water entered in this process from supply channel 51
A part is entered directly into steel ladle 3 by the second water inlet branch road 53, and another part passes through the first water inlet branch
Road 52 is entered in measuring tank 2, the detergent in measuring tank 2 and the current from the first water inlet entrance of branch road 52
After mixing, entered under water flow pressure and Action of Gravity Field along drain pipe 62 in steel ladle 3；Finally
Constantly being rinsed by the current entered from the first water inlet branch road 52 is all introduced into the detergent in measuring tank 2
In steel ladle 3.When the space that measuring tank 2 is set is smaller, because a detergent part can be entered by first
The water inlet branch road 53 of water branch road 52 and second is entered directly into steel ladle 3, after the opening of water intaking valve 54,
Under the percussion of current, the detergent positioned at the first water inlet water inlet branch road 53 of branch road 52 and second all enters
Enter in steel ladle 3, realize the first water inlet branch road 52 and the second water inlet branch road 53 detergent-free residual, it is ensured that
The dispensing precision of detergent.
Finally, washing machine brings into operation pre-set programs, to be washed to cloth amount.In order to ensure measuring tank 2
It is interior to have residual detergent, therefore when washing machine enters the last time water inlet of rinse stage, control is opened
Close 64 and be constantly in open mode, and also do not closed first after the completion of water inlet, when washing machine runs one section
Between after turn off controlling switch 64, so as to realize the liquid that remains in emptying measuring tank 2 and drain pipe 62,
So as to ensure can to realize that precisely amount is delivered according to set amount during washing every time.
In the present invention on the basis of laundry detergent throwing mechanism, those skilled in the art can also pass through
Increase detergent box 1 quantity, to increase the species of putting detergent, realize a variety of detergent respectively from
It is dynamic to deliver, for example：Liquid detergent, softener, disinfectant etc..With the two kinds of washings of putting detergent and disinfectant
Exemplified by agent, now washing machine include being respectively provided with two detergent boxes 1, two detergent boxes 1 detergent and
Disinfectant, two detergent boxes 1 connect measuring tank 2 respectively, are set between each detergent box 1 and measuring tank 2
Put a delivery device 4, due to and the device may be implemented in before another detergent of dispensing to washing for delivering before
Wash agent to be cleaned, therefore make to be independent of each other between two kinds of detergent, realize the essence of two kinds of detergent
Standard is delivered.According to above-mentioned principle skilled person it is readily conceivable that being thrown according to the detergent in the present invention
The automatic throwing mechanism of two or more detergent also can be set in laying mechanism, and this is no longer going to repeat them.
By above-described embodiment, the purpose of the present invention is reached by fully effective.It is familiar with this technology
Personage should be understood that the present invention includes but is not limited to accompanying drawing and the content described in embodiment above.
The modification of any function and structure principle without departing from the present invention is intended to be included in the scope of claims.
Claims (10)
1. laundry detergent throwing mechanism, including detergent box, dispensing dress for storing detergent
The dispensing control unit for putting and controlling delivery device to work, it is characterised in that the detergent throwing mechanism is also wrapped
Measuring tank and the detection means for detecting detergent amount in the measuring tank are included, the measuring tank has feed liquor
Mouth and liquid outlet, the inlet connect the output end of the delivery device, and the liquid outlet connects washing machine
Steel ladle, controlling switch is provided with the liquid outlet, the dispensing control unit is according to the detection means
The dispensing speed of delivery device described in signal of change is detected, the dispensing control unit is according to the delivery device
Deliver speed and default injected volume controls the remaining release time of the delivery device.
2. laundry detergent throwing mechanism as claimed in claim 1, it is characterised in that：The inspection
Surveying device includes being connected with the first electrode pair and the second electricity for detecting liquid level on test section, the test section
Extremely right, the test position of the second electrode pair is higher than the test position of the first electrode pair.
3. laundry detergent throwing mechanism as claimed in claim 2, it is characterised in that：The meter
Measuring tank is provided with first electrode, second electrode and the 3rd electrode, first electrode and second electrode the formation institute
State first electrode pair, the second electrode and the 3rd electrode form the second electrode pair, the first electrode,
The second electrode and the 3rd electrode have a test side, and the test side of the 3rd electrode is higher than described the
The test side of one electrode and the test side of the second electrode.
4. laundry detergent throwing mechanism as claimed in claim 3, it is characterised in that：Described
One electrode, the second electrode and the 3rd electrode are inserted by the measuring tank top vertical；Or, the
One electrode, second electrode and the 3rd electrode are laterally inserted by the measuring tank sidepiece.
5. laundry detergent throwing mechanism as claimed in claim 3, it is characterised in that：It is described to wash
Clothing machine also includes water intaking valve, the first water inlet branch road of the connection water intaking valve and connects the second of the water intaking valve
Water inlet branch road, the second water inlet branch road connects the steel ladle, and the first water inlet branch road connects the meter
Measuring tank, the link position of the first water inlet branch road and measuring tank is higher than the test side of the 3rd electrode.
6. the laundry detergent throwing mechanism as described in one of claim 1 to 5, it is characterised in that：
The inlet, which is located at or is provided with the measuring tank sidewall bottom, the inlet, prevents detergent
The check-valves of backflow.
7. washing machine detergent delivers control method, it is characterised in that washing machine, which has, to be used to deposit washing
The detergent box of agent, delivery device, the dispensing control unit of control delivery device work, measuring tank and for examining
The detection means of detergent amount in the measuring tank is surveyed, the measuring tank has inlet and liquid outlet, described
Inlet connects the output end of the delivery device, and the liquid outlet connects the steel ladle of washing machine, it is described go out
Controlling switch is provided with liquid mouthful, the detergent is delivered control method and comprised the following steps：
S01) controlling switch and control delivery device are closed, and the dispensing control unit is according to washing
Current cloth amount setting preset water level, the default injected volume V of detergent is set further according to preset water level in clothing machineAlways；
S02) the dispensing control unit controls the delivery device to start the putting detergent into the measuring tank；
S03) detection means detects the first liquid level and the second liquid level of setting in the measuring tank, the throwing
The detergent amount corresponding to default first liquid level and the second liquid level on control unit is put, and described deliver controls
Portion according to the detection signal of detection means record respectively detergent reach first liquid level and the second liquid level when
Between；
S04 it is) described to deliver control unit according to the detergent amount difference of the first liquid level and the second liquid level and reach the
The time difference of one liquid level and the second liquid level calculates the dispensing speed of the delivery device, and is filled according to described deliver
The dispensing speed put and the default injected volume VAlwaysCalculate the remaining release time of the delivery device, the throwing
Put the time that control unit controls the delivery device to continue to run with according to the remaining release time；
S05) the dispensing control unit controls the delivery device to stop work when reaching the remaining release time
Make, and open the controlling switch by the detergent input steel ladle in measuring tank.
8. washing machine detergent as claimed in claim 7 delivers control method, it is characterised in that：The inspection
Surveying device includes being connected with the first electrode pair for setting the first liquid level on test section, the test section and uses
In the second electrode pair for setting the second liquid level, the corresponding detergent amount of first liquid level is set as V1, it is described
The corresponding detergent amount of second liquid level is V2, second liquid level is higher than the first liquid level, setting second liquid
Position and detergent amount difference △ V corresponding to the first liquid level are V2-V1, the step S04) and the middle control dispensing
The method of device working time comprises the following steps；
S11) delivery device is opened and to the measuring tank putting detergent, sets the measuring tank wash-in
It is T to wash the time required to agent reaches first liquid level1；
S12) delivery device continues, to the measuring tank putting detergent, to set in the measuring tank and wash
Agent is T the time required to reaching second liquid level2；
S13) the dispensing control unit, which is calculated, obtains the dispensing speed of the delivery device for △ V/ (T2-T1)；
S14) the dispensing control unit, which is calculated, reaches default injected volume V in the measuring tankAlwaysRequired remaining throwing
Put time T3For (VAlways-V2)*(T2-T1)/△ V, the residue that the dispensing control unit is obtained according to calculating
Release time T3The time for controlling the delivery device to continue to run with.
9. washing machine detergent as claimed in claim 8 delivers control method, it is characterised in that：Described
The corresponding detergent amount of two liquid levels is less than the minimum injected volume of detergent of washing machine.
10. the washing machine detergent as described in claim 7 or 8 or 9 delivers control method, it is characterised in that
The washing machine also includes water intaking valve, connects the first water inlet branch road of the water intaking valve and connects the water intaking valve
Second water inlet branch road, it is described first water inlet branch road connection measuring tank, it is described second water inlet branch road connection laundry
The steel ladle of machine, the step S05) in, while the dispensing control unit controls the controlling switch opening
The water intaking valve is opened, the current part that the water intaking valve is provided enters described contain by the second water inlet branch road
Bucket, another current enter the steel ladle after the measuring tank, and water level is to institute in the steel ladle
State up to after preset water level, the dispensing control unit controls the water intaking valve to close.
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| CN201610184694.8A CN107237088B (en) | 2016-03-28 | 2016-03-28 | Detergent dispensing mechanism for washing machine and control method thereof |
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| CN201610184694.8A CN107237088B (en) | 2016-03-28 | 2016-03-28 | Detergent dispensing mechanism for washing machine and control method thereof |
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| CN113842099A (en) * | 2020-06-28 | 2021-12-28 | 佛山市顺德区美的洗涤电器制造有限公司 | Control method of dishwasher, and computer-readable storage medium |
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| CN112442854A (en) * | 2019-08-29 | 2021-03-05 | 博西华电器（江苏）有限公司 | Washing machine and control method thereof |
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| CN113842099A (en) * | 2020-06-28 | 2021-12-28 | 佛山市顺德区美的洗涤电器制造有限公司 | Control method of dishwasher, and computer-readable storage medium |
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Effective date of registration: 20210122 Address after: 310018 No.2, Songqiao street, Hangzhou Economic and Technological Development Zone, Hangzhou City, Zhejiang Province Applicant after: PANASONIC HOME APPLIANCES (CHINA) Co.,Ltd. Applicant after: PANASONIC APPLIANCES WASHING MACHINE (HANGZHOU) Co.,Ltd. Address before: 310018 3-A, No. 6 Songqiao Street, Hangzhou Economic and Technological Development Zone, Zhejiang Province Applicant before: PANASONIC HOME APPLIANCES R&D CENTER (HANGZHOU) Co.,Ltd. Applicant before: PANASONIC APPLIANCES WASHING MACHINE (HANGZHOU) Co.,Ltd. |
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