CN107237088B - Detergent dispensing mechanism for washing machine and control method thereof - Google Patents
Detergent dispensing mechanism for washing machine and control method thereof Download PDFInfo
- Publication number
- CN107237088B CN107237088B CN201610184694.8A CN201610184694A CN107237088B CN 107237088 B CN107237088 B CN 107237088B CN 201610184694 A CN201610184694 A CN 201610184694A CN 107237088 B CN107237088 B CN 107237088B
- Authority
- CN
- China
- Prior art keywords
- detergent
- throwing
- electrode
- liquid level
- water inlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
Abstract
The invention discloses a detergent throwing mechanism for a washing machine and a control method thereof, which belong to the field of washing machines and solve the technical problem that the throwing amount of the detergent in the existing washing machine is difficult to accurately control.
Description
[ field of technology ]
The invention relates to a detergent delivery mechanism of a washing machine and a control method thereof.
[ background Art ]
Along with the progress of technology and the demand of intelligent development, the intelligent demand of people on washing machines is higher and higher at present, the number of families for washing clothes by using the detergent is also increased and the detergent is put in, so that two different modes of putting the detergent by users and automatically putting the laundry detergent are provided. For a washing machine manually put by a user, the user is fuzzy in specific detergent put amount and troublesome in operation. The existing washing machine with the function of automatically putting in the detergent on the market comprises a detergent box, a delivery pump and a delivery pipeline which are arranged on the washing machine, wherein the automatic putting-in function is realized by controlling the running time of the delivery pump by a putting-in control part according to a set putting-in flow rate, but in actual use, the flow rate of the detergent can be influenced by different factors such as the use environment temperature, the viscosity of the detergent type and the like, so that the putting-in quantity of the detergent can not reach the preset putting-in precision.
[ invention ]
The invention solves the technical problem of providing a detergent feeding mechanism for a washing machine and a control method thereof, and improves the accuracy of detergent feeding.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a washing machine is with detergent dispensing mechanism, includes the detergent box that is used for depositing the detergent, puts in device and control and put in the control portion of putting in device work, the detergent dispensing mechanism still includes the metering tank and is used for detecting the detection device of the detergent volume in the metering tank, the metering tank has inlet and liquid outlet, the inlet intercommunication put in the output of device, the liquid outlet intercommunication washing machine's flourishing cask, liquid outlet department is equipped with control switch, put in the control portion according to detection device's detection signal calculation put in device's input speed, put in the control portion according to put in device's input speed and preset input volume control put in device's surplus put in time.
According to the invention, the detergent is discharged into the metering tank, the detection device detects the detergent amount in the metering tank, the throwing control part calculates the throwing speed of the throwing device according to the detection signal of the detection device, and the throwing control part controls the time of the rest operation of the throwing device according to the throwing speed of the throwing device and the preset throwing amount of the detergent throwing, so that the detergent discharged into the metering tank is accurately controlled, and then the detergent is thrown into the water containing barrel of the washing machine from the metering tank. The invention tests the detergent throwing speed of the washing machine under different environment temperatures and different detergent viscosities, so that the throwing precision is prevented from being influenced by the environment temperature, the detergent viscosity and other external conditions, the quantity of the thrown detergent is accurately controlled to be close to the preset throwing quantity, the waste of the detergent is avoided, and the optimal washing effect is brought.
In addition, in the detection of the detection device, the running of the throwing device after a period of time reaches stable power, the conveying pipeline between the detergent box and the metering tank is filled with detergent, and no air gap exists in the conveying pipeline, so that the throwing speed of the throwing device calculated by the throwing control part is ensured to be the throwing speed of the throwing device under the stable running condition, the influence of unstable initial power of the throwing device can be avoided, and the influence of uneven residual detergent quantity in the conveying pipeline after the previous throwing on the precision of the throwing quantity can be avoided.
Further, the detection device comprises a detection part, wherein the detection part is connected with a first electrode pair and a second electrode pair for detecting the liquid level, and the detection position of the second electrode pair is higher than that of the first electrode pair. The change condition of the detergent amount in the metering tank is sensed by detecting the liquid level, so that the influence on the detection of the detergent amount caused by the impact of water flow can be avoided, and the test result is more accurate.
Further, a first electrode, a second electrode and a third electrode are arranged on the metering groove, the first electrode and the second electrode form a first electrode pair, the second electrode and the third electrode form a second electrode pair, the first electrode, the second electrode and the third electrode are provided with detection ends, and the detection end of the third electrode is higher than the detection ends of the first electrode and the second electrode. The first electrode pair and the second electrode pair share the second electrode, so that the number of components can be reduced, the installation is convenient, the accuracy requirement of the installation is reduced, and the speed measurement result is more accurate.
Further, the first electrode, the second electrode and the third electrode are vertically inserted from the top of the metering tank; alternatively, the first electrode, the second electrode and the third electrode are laterally inserted from the sides of the metering slot.
Further, the washing machine further comprises a water inlet valve, a first water inlet branch communicated with the water inlet valve and a second water inlet branch communicated with the water inlet valve, the second water inlet branch is communicated with the water bucket, the first water inlet branch is communicated with the metering groove, and the connection position of the first water inlet branch and the metering groove is higher than the detection end of the third electrode. By the arrangement, the laundry detergent in the metering tank can be washed, the phenomenon that rinsing is not clean due to the fact that residual laundry detergent enters the water holding barrel in the rinsing stage after washing is finished can be prevented, and meanwhile, the influence of solidification of residual detergent on the next detergent throwing precision can be prevented from being formed under long-term storage.
Further, the liquid inlet is positioned at or near the bottom of the side wall of the metering tank, and a check valve for preventing the detergent from flowing back is arranged at the liquid inlet. When the dispensing device is stopped, the dispensing control part controls the check valve to be closed, so that excessive detergent can be prevented from entering the metering tank or the detergent in the metering tank can be prevented from flowing back, and the accuracy of the detergent amount in the metering tank can be ensured.
The detergent throwing control method for the washing machine adopts the detergent throwing mechanism, and comprises the following steps:
s01) the control switch and the throwing device are in a closed state, the throwing control part sets a preset water level according to the current cloth amount in the washing machine, and then sets a preset throwing amount V of the detergent according to the preset water level Total (S) ；
S02) the throwing control part controls the throwing device to start throwing the detergent into the metering tank;
s03) the detection device detects a first liquid level and a second liquid level set in the metering tank, the delivery control part presets the detergent amount corresponding to the first liquid level and the second liquid level, and the delivery control part records the time of the detergent reaching the first liquid level and the second liquid level respectively according to the detection signal of the detection device;
s04) the throwing control part calculates the throwing speed of the throwing device according to the difference value of the detergent amount of the first liquid level and the second liquid level and the time difference between reaching the first liquid level and the second liquid level, and according to the throwing speed of the throwing device and the preset throwing amount V Total (S) Calculating the residual throwing time of the throwing device, and controlling the continuous running time of the throwing device by the throwing control part according to the residual throwing time;
s05) the throwing control part controls the throwing device to stop working when the rest throwing time is reached, and opens the control switch to throw the detergent in the metering tank into the water bucket.
The detection device comprises a detection part, wherein the detection part is connected with a control unit for settingA first electrode pair of a first liquid level and a second electrode pair for setting a second liquid level, wherein the detergent amount corresponding to the first liquid level is set as V 1 The detergent amount corresponding to the second liquid level is V 2 The second liquid level is higher than the first liquid level, and the difference DeltaV of the detergent amount corresponding to the second liquid level and the first liquid level is V 2 -V 1 The method for controlling the working time of the throwing device in the step S04) comprises the following steps of;
s11) the throwing device is opened and the detergent is thrown into the metering tank, and the time required for the detergent in the metering tank to reach the first liquid level is set as T 1 ；
S12) the throwing device continuously throws the detergent into the metering tank, and the time required for the detergent in the metering tank to reach the second liquid level is set as T 2 ；
S13) the throwing control part calculates the throwing speed of the throwing device to be DeltaV/(T) 2 -T 1 )；
S14) the delivery control part calculates the preset delivery quantity V reached in the metering tank Total (S) Required remaining delivery time T 3 Is (V) Total (S) -V 2 )*(T 2 -T 1 ) The delivery control unit calculates a remaining delivery time T based on the calculated delivery time 3 And controlling the continuous operation time of the throwing device.
Further, the second liquid level corresponds to the detergent amount V 2 Less than the minimum detergent dosage of the washing machine.
Further, the washing machine further comprises a water inlet valve, a first water inlet branch communicated with the water inlet valve and a second water inlet branch communicated with the water inlet valve, the first water inlet branch is communicated with a metering tank, the second water inlet branch is communicated with a water containing barrel of the washing machine, in the step S05), the throwing control part controls the control switch to be opened and simultaneously opens the water inlet valve, a part of water flow provided by the water inlet valve enters the water containing barrel through the second water inlet branch, the other part of water flow enters the water containing barrel after passing through the metering tank, and after the water level in the water containing barrel reaches a preset water level, the throwing control part controls the water inlet valve to be closed.
These features and advantages of the present invention will be disclosed in detail in the following detailed description and the accompanying drawings.
[ description of the drawings ]
The invention is further described with reference to the accompanying drawings:
FIG. 1 is a schematic diagram of the structure of the invention when the detergent in the metering tank reaches the first liquid level;
FIG. 2 is a schematic diagram of the structure of the invention when the detergent in the metering tank reaches the second liquid level;
FIG. 3 is a flowchart of a control method of a detergent dispensing mechanism for a washing machine according to the present invention;
fig. 4 is a schematic view showing the operation of the detergent dispensing mechanism for a washing machine according to the present invention.
[ detailed description ] of the invention
The technical solutions of the embodiments of the present invention will be explained and illustrated below with reference to the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, and not all the embodiments. Based on the examples in the embodiments, those skilled in the art can obtain other examples without making any inventive effort, which fall within the scope of the invention.
Referring to fig. 1 and 2, the washing machine includes a frame, a tub 3 and a detergent delivery mechanism are provided on the frame, the detergent delivery mechanism includes a detergent box 1, a delivery device 4 and a delivery control part 71, the detergent box 1 is used for storing detergent, a conveying pipeline is connected between the tub 3 and the detergent box 1, the delivery device 4 is arranged on the conveying pipeline, the delivery control part 71 is used for controlling the delivery device 4 to work, and the detergent in the detergent box 1 is discharged when the delivery device 4 is started. The dispensing device 4 can be a gear pump or a pneumatic pump and other delivery pumps, the delivery pumps can realize continuous and uninterrupted dispensing of the detergent, and the final dispensing amount is in direct proportion to the dispensing time.
The detergent delivery mechanism further comprises a metering tank 2 and a detection device for detecting the detergent amount in the metering tank 2, a metering box is arranged on the rack, a space is defined in the metering box to form the metering tank 2, the metering tank 2 is provided with a liquid inlet and a liquid outlet, the liquid inlet of the metering tank 2 is communicated with the output end of the delivery device 4, the liquid outlet of the metering tank 2 is communicated with the water bucket 3 of the washing machine, a control switch 64 is arranged at the liquid outlet of the metering tank 2, the delivery device 4 discharges the detergent in the detergent box 1 into the metering tank 2 under the closing state of the control switch 64, the detection device detects the change of the detergent amount in the metering tank 2, the delivery control part 71 calculates the delivery speed of the delivery device 4 according to the change difference of the detergent amount detected by the detection device and the corresponding time difference, after the delivery speed of the delivery device 4 is calculated, the delivery control part 71 controls the residual delivery time of the delivery device 4 according to the preset delivery amount and the delivery speed of the delivery device 4, and when the residual delivery time is operated, the delivery control device 4 stops working and the control device 4 is opened to deliver the detergent in the metering tank 3 to the preset amount of the detergent.
Wherein, the conveying pipeline includes feed liquor pipe 61 and drain pipe 62, and the feed liquor mouth of detergent box 1 and metering tank 2 is connected to feed liquor pipe 61, and put in device 4 setting on feed liquor pipe 61, and feed liquor pipe 61 and metering tank 2 are connected one end and are equipped with check valve 63, and check valve 63 can adopt check valve or solenoid valve, and the direction of delivery is that the detergent can only flow in to metering tank 2 by putting in device 4, can't reverse flow, realizes the purpose of one-way input through check valve 63 break-make. The drain pipe 62 is connected with the bottom of the metering tank 2 and the water containing bucket 3, the control switch 64 is arranged at one end of the drain pipe 62 connected with the metering tank 2, the control switch 64 is an electromagnetic valve, and the control switch 64 is opened to enable the detergent in the metering tank 2 to be put into the water containing bucket 3.
In order to enable the dispensing control portion 71 to accurately detect the dispensing speed of the dispensing device 4 according to the detection device, the detection device in the present invention preferably includes a detection portion 72, a first electrode 81, a second electrode 82, and a third electrode 83, where the first electrode 81 and the second electrode 82 are electrically connected to form a first electrode pair, the first electrode pair is connected to the detection portion 72, the second electrode 82 and the third electrode 83 are electrically connected to form a second electrode pair, the second electrode pair is connected to the detection portion 72, and the first electrode 81, the second electrode 82, and the third electrode 83 have detection ends, which are positions where the liquid level is first sensed during the rising of the detergent liquid level in the metering tank 2. In order to simplify the processing of the metering tank 2 and facilitate the assembly of the first electrode 81, the second electrode 82 and the third electrode 83, the first electrode 81, the second electrode 82 and the third electrode 83 in the preferred embodiment are vertically inserted downward from the top of the metering tank 2, at this time, the detection end of the first electrode 81 is located at the bottommost part of the first electrode 81, the detection end of the second electrode 82 is located at the bottommost part of the second electrode 82, the detection end of the third electrode 83 is located at the bottommost part of the third electrode 83, the detection end of the second electrode 82 is higher than the detection end of the first electrode 81, or it is located at the same horizontal position as the detection end of the first electrode 81, and the detection end of the third electrode 83 is higher than the detection end of the second electrode 82.
In order to avoid the detection interference of the detergent entering from the liquid inlet on the first electrode pair and the second electrode pair, the liquid inlet in the preferred embodiment is positioned at the bottom of the side wall of the metering tank 2 and is lower than the detection end of the second electrode 82, so that the situation that the detergent entering from the liquid inlet directly impacts the electrode to cause false triggering of the first electrode pair or the second electrode pair can be avoided, and the detection precision is improved.
The first electrode pair and the second electrode pair share the second electrode 82, so that the number of components can be reduced, the installation is convenient, the requirement on the accuracy of the installation is reduced, and the speed measurement result is more accurate. Of course, in other embodiments of the present invention, it is easily understood by those skilled in the art that more than 3 electrodes are provided to form the first electrode pair and the second electrode pair, for example, the first electrode pair may be formed by a first electrode and a second electrode pair, the second electrode pair may be formed by a third electrode and a fourth electrode, and the bottom of one of the third electrode and the fourth electrode is higher than the bottom of the first electrode and the bottom of the second electrode, so that the same effect as the preferred embodiment of the present invention can be achieved. In addition, the first electrode, the second electrode and the third electrode can be transversely inserted into the metering groove from the side part of the metering groove by a person skilled in the art, the second electrode is higher than the first electrode, the third electrode is higher than the second electrode, and the liquid levels corresponding to the first electrode, the second electrode and the third electrode are easy to ensure to be in accordance with design standards.
In order to improve the accuracy of detecting the delivery speed of the delivery device 4, in other embodiments of the present invention, more than two electrode pairs may be provided, each electrode pair detects the liquid level at different heights, the delivery speed of the delivery device is calculated according to the detergent capacity difference and the triggering time difference between the detection positions of two adjacent electrode pairs, and then the average value of the obtained delivery speeds is taken as the final delivery speed of the delivery device.
Further, the washing machine of the present invention further includes a water supply pipeline 51, a water inlet valve 54 is provided on the water supply pipeline 51, the water inlet valve 54 may be an electromagnetic valve, the water supply pipeline 51 is connected with a first water inlet branch 52 and a second water inlet branch 53, the second water inlet branch 53 is communicated with the water tub 3 of the washing machine, and the first water inlet branch 52 is communicated with the metering tank 2. And the connection position of the first water inlet branch 52 and the metering tank 2 is higher than the lower end of the third electrode 83, so that the detergent in the metering tank 2 cannot enter the first water inlet branch 52 from the water inlet before the liquid level reaches the bottommost part of the third electrode 83, and the influence on the accuracy of the test is avoided. The water supplied by the water supply pipeline 51 enters the metering tank 2 from the first water inlet branch 52, so that the detergent in the metering tank 2 and in the liquid outlet pipe 62 can be washed, the condition that the rinsing is not clean due to the fact that residual detergent enters the water containing barrel 3 in the rinsing stage after the washing is finished can be prevented, and meanwhile, the residual detergent can be prevented from being solidified after being stored for a long time.
Referring to fig. 3, the detergent delivery control method of the present invention includes the steps of:
s01) the control switch and the throwing device are in a closed state, the throwing control part sets a preset water level according to the current cloth amount in the washing machine, and then sets a preset throwing amount V of the detergent according to the preset water level Total (S) ；
S02) the throwing control part controls the throwing device to start throwing the detergent into the metering tank;
s03) the detection device detects a first liquid level and a second liquid level set in the metering tank, the delivery control part presets the detergent amount corresponding to the first liquid level and the second liquid level, and the delivery control part records the time of the detergent reaching the first liquid level and the second liquid level respectively according to the detection signal of the detection device;
s04) the throwing control part calculates the throwing speed of the throwing device according to the difference value of the detergent amount of the first liquid level and the second liquid level and the time difference between reaching the first liquid level and the second liquid level, and according to the throwing speed of the throwing device and the preset throwing amount V Total (S) Calculating the residual throwing time of the throwing device, and controlling the continuous running time of the throwing device by the throwing control part according to the residual throwing time;
s05) the throwing control part controls the throwing device to stop working when the rest throwing time is reached, and opens the control switch to throw the detergent in the metering tank into the water bucket.
In the step 03), when the detergent level rises to the detection end of the second electrode 82 with an increase in the amount of detergent charged into the metering tank 2, the first electrode pair is turned on and the detection portion 72 is triggered, the detergent level at that time is set to the first level 91, and the charging control portion 71 sets the corresponding detergent amount to V when the detergent reaches the first level 91 in advance 1 When the liquid level of the detergent rises to the detection end of the third electrode 83, the second electrode pair is turned on to trigger the detection unit 72, the liquid level of the detergent at this time is set to be the second liquid level 92, and the injection control unit 71 sets the corresponding amount of the detergent to be V when the liquid level of the detergent reaches the second liquid level 92 in advance 2 The detergent dispensing control unit 71 records the dispensing time T of the detergent 2 . To facilitate calculation of V 1 And V 2 The measuring tank 2 in the preferred embodiment has a rectangular parallelepiped, square or cylindrical shape with a constant cross-sectional area in the height direction, V 1 Is the product of the height of the first liquid level 91 and the bottom area of the metering tank 2, V 2 Is the product of the height of the second liquid level 92 and the bottom area of the metering tank 2.
In order to improve the delivery accuracy of the detergent delivery mechanism, the detergent level in the metering tank 2 reaches a second level92 times corresponding detergent amount V 2 The minimum adding amount is smaller than the minimum preset adding amount of the detergent, namely the preset adding amount V Total (S) >V 2 At this time, it is further ensured that when the detergent level reaches the second level 92, the dispensing device 4 needs to continue to operate for a period of time before reaching the preset dispensing amount V Total (S) . On the basis, the larger the difference between the bottommost part of the third electrode 83 and the bottommost part of the second electrode 82 is, the longer the running time of the dispensing device 4 is, when the detergent reaches the second liquid level 92, the dispensing device 4 reaches a stable running state, the more accurate flow rate of the test is ensured, and the higher the accuracy of the dispensed detergent amount is.
In the above 04), when the dispensing device 4 is opened, the detergent in the detergent box 1 is dispensed into the metering tank 2, and when the detergent level reaches the first level 91, the dispensing control unit 71 records the time required for dispensing the detergent to the first level 91 as T 1 The detergent is continuously fed into the metering tank 2, and when the detergent level reaches the second level 92, the feeding control part 71 records the time required for feeding the detergent into the second level 92 as T 2 The dispensing control unit 71 calculates the dispensing speed of the dispensing device from the difference DeltaV in the detergent volume corresponding to the first liquid level 91 and the second liquid level 92 and the time difference between the two triggers, where DeltaV=V 2 -V 1 The delivery speed of the delivery device 4 is DeltaV/(T) 2 -T 1 ) The measured delivery rate at this time is the delivery rate when the delivery device 4 is running steady. Due to V 2 <V Total (S) Therefore, the dispensing control unit 71 controls the dispensing device 4 to continue to operate so as to dispense the detergent into the metering tank 2, so that the amount of the detergent in the metering tank 2 reaches V Total (S) The detergent amount in the metering tank 2 reaches V Total (S) After this, the dosing device 4 is closed. The detergent amount in the metering tank 2 is controlled to be V 2 Reach V Total (S) The remaining time required for the operation of the delivery device 4 until closing is T 3 And at the detergent amount from V 2 Reach V Total (S) In the course of (2), the delivery speed of the delivery device 4 is the delivery speed at which it is operating steadily, i.e. DeltaV/(T) 2 -T 1 ) Thus remaining timeM T 3 ＝(V Total (S) -V 2 )*(T 2 -T 1 )/△V。
In actual use, the detergent delivery speed cannot reach the preset delivery precision due to the influence of different factors such as the use environment temperature and the viscosity of the laundry detergent, but the detection and calculation method of the delivery speed overcomes the defect, the measured delivery speed is the delivery speed after the delivery device 4 operates stably, the influence caused by the unstable power of the delivery device 4 in the initial stage of starting is eliminated, the measured delivery speed has higher precision, the detergent amount in the water containing barrel 3 is more accurate, and the problems of unclean clothes or excessive residual detergent on clothes caused by the small detergent amount are avoided.
Of course, when the operation of the delivery device 4 is in an ideal state, i.e. the delivery speed of the delivery device is always in a steady state, in which case the time T remains 3 ＝V Total (S) *(T 2 -T 1 )/△V-T 2 。
In the step 05), the throwing control part 71 controls the control switch 64 to be opened and simultaneously opens the water inlet valve 54, a part of water flow provided by the water inlet valve 54 enters the water accommodating bucket 3 through the second water inlet branch 53, the other part of water flow enters the metering tank 2 through the first water inlet branch 52 and flows into the water accommodating bucket 3, and after the water level in the water accommodating bucket 3 reaches a preset water level, the throwing control part 71 controls the water inlet valve 54 to be closed.
For a better understanding of the operation of the detergent dispensing mechanism for a washing machine according to the present invention, the following will describe in detail with reference to the flowchart shown in fig. 4:
initially, the control switch 64, the inlet valve 54 and the dispensing device 4 are all in a closed state, and no detergent is present in the metering tank 2.
Firstly, the washing machine is started, clothes are put into the washing machine, a preset program is set through an operation panel of the washing machine, a preset water level is set by the putting control part 71 according to the current cloth amount in the washing machine, and a preset putting amount V of the detergent is calculated by the putting control part 71 according to the preset water level Total (S) 。
Then, the delivery control unit 71 controls the delivery device 4Starting, the check valve 63 is opened, the throwing control part 71 starts timing, the detergent in the detergent box 1 is discharged into the metering tank 2 through the liquid inlet pipe 61, in the process, the gap in the liquid inlet pipe 61 is emptied, the liquid level in the metering tank 2 is detected by the detection device, when the liquid level in the metering tank 2 rises to the first liquid level 91, the first electrode pair is conducted, the detection part 72 is triggered, and at the moment, the detergent capacity in the metering tank 2 is V 1 The delivery control unit 71 records the operation time of the delivery device 4 as T 1 。
Subsequently, the detergent is continuously fed into the metering tank 2, when the liquid level in the metering tank 2 continuously rises to the second liquid level 92, the second electrode pair is conducted and the detection part 72 is triggered again, and the detergent capacity in the metering tank 2 is V 2 The delivery control unit 71 records the operation time of the transfer pump 4 as T 2 。
Subsequently, the delivery control unit 71 calculates the delivery speed of the delivery device 4 to be Δv/(T) based on the test result of the detection device 2 -T 1 ) The delivery control part 71 controls the delivery control part according to the preset total amount V Total (S) And V 2 Calculates the difference in the delivery rate and the remaining time T of operation of the delivery device 4 3 ，T 3 ＝(V Total (S) -V 2 )*(T 2 -T 1 ) V/DeltaV, the delivery device 4 is at T 2 Remaining delivery time T continuing after the moment 3 Thereafter, the delivery control unit 71 controls the delivery device 4 to stop operating, and closes the check valve 63. Continue to operate T at the delivery device 4 3 According to the actual space of the metering tank 2, the detergent flowing conditions are divided into two types: the internal space of the metering tank 2 is large enough, and the throwing device 4 continues to operate until reaching the determined T 3 When in time, all the detergent to be put in is in the metering tank 2; alternatively, the metering tank 2 may be provided with a smaller space, and the delivery device 4 may continue to operate until the above-determined T is reached 3 During the time, due to the limitation of the size of the metering tank 2, a part of the injected detergent is positioned in the metering tank 2, and the other part of the injected detergent overflows from the upper end of the metering tank 2 and passes through the first water inlet branch 52 and the second water inlet branch 53 to enter the water containing barrel 3.
Subsequently, the dispensing control part 71 controls the control switch 64 to be opened, the detergent in the metering tank 2 is discharged into the tub 3, and simultaneously controls the water inlet valve 54 to be opened to fill water into the washing machine through the water supply pipe 51, and when the water level of the tub 3 reaches a set preset water level, the water inlet valve 54 is closed; in the process, one part of water entering from the water supply pipeline 51 directly enters the water containing barrel 3 through the second water inlet branch 53, the other part of water enters the metering tank 2 through the first water inlet branch 52, and after being mixed with water entering from the first water inlet branch 52, the detergent in the metering tank 2 enters the water containing barrel 3 along the liquid outlet pipe 62 under the action of water flow pressure and gravity; finally, the detergent in the metering tank 2 is completely introduced into the tub 3 through the continuous flushing of the water flow entering from the first water inlet branch 52. When the space that the metering tank 2 set up is less, because some can directly get into in the flourishing cask 3 through first water inlet branch road 52 and second water inlet branch road 53, after inlet valve 54 opens, under the impact of rivers, all get into in the flourishing cask 3 in the detergent that lies in first water inlet branch road 52 and second water inlet branch road 53, realize that first water inlet branch road 52 and second water inlet branch road 53 do not have the detergent and remain, guaranteed the input precision of detergent.
Finally, the washing machine starts to run a preset program to wash the cloth amount. In order to ensure that no residual detergent exists in the metering tank 2, the control switch 64 is always in an on state when the washing machine enters the last water inlet of the rinsing stage, and is not closed after the water inlet is finished, and the control switch 64 is closed after the washing machine runs for a period of time, so that the residual liquid in the metering tank 2 and the liquid outlet pipe 62 can be emptied, and the accurate dosing can be realized according to the set quantity during each washing.
On the basis of the detergent throwing mechanism for the washing machine, the person skilled in the art can increase the types of throwing detergents by increasing the number of the detergent boxes 1, so as to realize the respective automatic throwing of various detergents, for example: laundry detergent, softener, disinfectant, etc. Taking two detergents of putting in detergent and disinfectant as an example, the washing machine at this moment includes two detergent boxes 1, are equipped with detergent and disinfectant respectively in two detergent boxes 1, and metering tank 2 is connected respectively to two detergent boxes 1, sets up a put-in device 4 between every detergent box 1 and the metering tank 2, because and the device can realize the washing to the detergent of putting in before putting in another kind of detergent, consequently can not influence each other between making two kinds of detergents, has realized the accurate of putting in of two kinds of detergents. It will be apparent to those skilled in the art from the above description that the detergent dispensing mechanism according to the present invention may further comprise an automatic dispensing mechanism for two or more kinds of detergents, and will not be described in detail herein.
The objects of the present invention have been fully achieved by the above-described embodiments. It will be appreciated by persons skilled in the art that the present invention includes, but is not limited to, the drawings and what has been described in the foregoing detailed description. Any modifications which do not depart from the functional and structural principles of the present invention are intended to be included within the scope of the appended claims.
Claims (7)
1. The washing machine detergent throwing control method is characterized in that the washing machine is provided with a detergent box for storing detergent, a throwing device, a throwing control part for controlling the throwing device to work, a metering tank and a detection device for detecting the detergent amount in the metering tank, the metering tank is provided with a liquid inlet and a liquid outlet, the liquid inlet is communicated with the output end of the throwing device, the liquid outlet is communicated with a water containing barrel of the washing machine, a control switch is arranged at the liquid outlet, and the washing machine throwing control method comprises the following steps:
s01) the control switch and the throwing device are in a closed state, the throwing control part sets a preset water level according to the current cloth amount in the washing machine, and then sets a preset throwing amount V of the detergent according to the preset water level Total (S) The method comprises the steps of carrying out a first treatment on the surface of the S02) the throwing control part controls the throwing device to start throwing the detergent into the metering tank;
s03) the detection device detects a first liquid level and a second liquid level set in the metering tank, the delivery control part presets the detergent amount corresponding to the first liquid level and the second liquid level, and the delivery control part records the time of the detergent reaching the first liquid level and the second liquid level respectively according to the detection signal of the detection device;
s04) the throwing control part calculates the throwing speed of the throwing device according to the difference value of the detergent amount of the first liquid level and the second liquid level and the time difference between reaching the first liquid level and the second liquid level, and according to the throwing speed of the throwing device and the preset throwing amount V Total (S) Calculating the residual throwing time of the throwing device, and controlling the continuous running time of the throwing device by the throwing control part according to the residual throwing time;
s05) the throwing control part controls the throwing device to stop working when the rest throwing time is reached, and opens the control switch to throw the detergent in the metering tank into the water bucket;
the detection device comprises a detection part, wherein a first electrode pair for setting a first liquid level and a second electrode pair for setting a second liquid level are connected to the detection part, and the detergent amount corresponding to the first liquid level is set as V 1 The detergent amount corresponding to the second liquid level is V 2 The second liquid level is higher than the first liquid level, and the difference DeltaV of the detergent amount corresponding to the second liquid level and the first liquid level is set as V 2 -V 1 The method for controlling the working time of the throwing device in the step S04) comprises the following steps of;
s11) the throwing device is opened and the detergent is thrown into the metering tank, and the time required for the detergent in the metering tank to reach the first liquid level is set as T 1 ；
S12) the throwing device continuously throws the detergent into the metering tank, and the time required for the detergent in the metering tank to reach the second liquid level is set as T 2 ；
S13) the throwing control part calculates the throwing speed of the throwing device to be DeltaV/(T) 2 -T 1 )；
S14) the delivery control part calculates the preset delivery quantity V reached in the metering tank Total (S) Required remaining delivery time T 3 Is (V) Total (S) -V 2 )*(T 2 -T 1 ) The delivery control unit calculates a remaining delivery time T based on the calculated delivery time 3 And controlling the continuous operation time of the throwing device.
2. The laundry machine detergent delivery control method of claim 1, wherein: the metering groove is provided with a first electrode, a second electrode and a third electrode, the first electrode and the second electrode form a first electrode pair, the second electrode and the third electrode form a second electrode pair, the first electrode, the second electrode and the third electrode are provided with detection ends, and the detection end of the third electrode is higher than the detection ends of the first electrode and the second electrode.
3. The laundry machine detergent delivery control method of claim 2, wherein: the first electrode, the second electrode and the third electrode are vertically inserted from the top of the metering groove; alternatively, the first electrode, the second electrode and the third electrode are laterally inserted from the sides of the metering slot.
4. The laundry machine detergent delivery control method of claim 2, wherein: the washing machine further comprises a water inlet valve, a first water inlet branch communicated with the water inlet valve and a second water inlet branch communicated with the water inlet valve, the second water inlet branch is communicated with the water bucket, the first water inlet branch is communicated with the metering groove, and the connection position of the first water inlet branch and the metering groove is higher than the detection end of the third electrode.
5. A method of controlling detergent delivery in a washing machine as claimed in any one of claims 1 to 4, wherein: the liquid inlet is positioned at or near the bottom of the side wall of the metering tank, and a check valve for preventing the detergent from flowing back is arranged at the liquid inlet.
6. The laundry machine detergent delivery control method of claim 1, wherein: the detergent amount corresponding to the second liquid level is smaller than the minimum detergent adding amount of the washing machine.
7. The method of claim 1 or 6, wherein the washing machine further comprises a water inlet valve, a first water inlet branch connected to the water inlet valve and a second water inlet branch connected to the water inlet valve, the first water inlet branch is connected to a metering tank, the second water inlet branch is connected to a water tub of the washing machine, the step S05) is characterized in that the water inlet valve is opened while the water inlet valve is controlled to be opened by the water inlet control part, a part of water supplied by the water inlet valve enters the water tub through the second water inlet branch, the other water enters the water tub after passing through the metering tank, and the water level in the water tub reaches the preset water level, and the water inlet valve is controlled to be closed by the water inlet control part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610184694.8A CN107237088B (en) | 2016-03-28 | 2016-03-28 | Detergent dispensing mechanism for washing machine and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610184694.8A CN107237088B (en) | 2016-03-28 | 2016-03-28 | Detergent dispensing mechanism for washing machine and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107237088A CN107237088A (en) | 2017-10-10 |
| CN107237088B true CN107237088B (en) | 2023-10-20 |
Family
ID=59983540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610184694.8A Active CN107237088B (en) | 2016-03-28 | 2016-03-28 | Detergent dispensing mechanism for washing machine and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107237088B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108035119B (en) * | 2017-12-25 | 2019-07-09 | 珠海格力电器股份有限公司 | Detergent feeding device, washing machine and detergent feeding method thereof |
| CN108677457B (en) * | 2018-07-20 | 2019-08-06 | 珠海格力电器股份有限公司 | Cleaning device, washing machine and detergent feeding method |
| CN109288480A (en) * | 2018-10-19 | 2019-02-01 | 珠海格力电器股份有限公司 | Cleaning agent delivery system, control method and dish washing machine comprising same |
| CN109431422A (en) * | 2018-10-19 | 2019-03-08 | 珠海格力电器股份有限公司 | Quantitative feeding device, control method and dish washing machine comprising quantitative feeding device |
| JP7149463B2 (en) * | 2019-04-09 | 2022-10-07 | パナソニックＩｐマネジメント株式会社 | washing machine |
| 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 |
| CN113106694B (en) * | 2020-01-09 | 2024-03-01 | 青岛海尔洗衣机有限公司 | Control method of drawer type washing machine |
| CN113842099B (en) * | 2020-06-28 | 2023-12-19 | 佛山市顺德区美的洗涤电器制造有限公司 | Control method of dish washer, dish washer and computer readable storage medium |
| CN116971153A (en) * | 2022-04-22 | 2023-10-31 | 合肥海尔洗衣机有限公司 | Ultrasonic cleaning device and washing machine |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000350895A (en) * | 1999-06-14 | 2000-12-19 | Matsushita Electric Ind Co Ltd | Washing machine |
| CN1495316A (en) * | 2002-08-07 | 2004-05-12 | 三星电子株式会社 | Washing machine and its control method |
| KR20080032526A (en) * | 2006-10-10 | 2008-04-15 | 삼성전자주식회사 | Control method of washing machine and washing machine using the method |
| JP2009039320A (en) * | 2007-08-09 | 2009-02-26 | Panasonic Corp | Washing machine |
| CN102517850A (en) * | 2011-12-12 | 2012-06-27 | 海尔集团公司 | Method for judging pouring time for automatic pouring system of detergent and washing machine |
| CN104727099A (en) * | 2013-12-24 | 2015-06-24 | 海尔集团公司 | Control method of automatic additive adding |
| CN205024472U (en) * | 2015-09-18 | 2016-02-10 | 南京创维家用电器有限公司 | Washing machine , detergent storage device and detergent liquid level multistage detection device |
| CN105332236A (en) * | 2015-11-27 | 2016-02-17 | 珠海格力电器股份有限公司 | Washing machine and detergent dosage feeding control method and device thereof |
| CN205398988U (en) * | 2016-03-28 | 2016-07-27 | 松下家电研究开发（杭州）有限公司 | Detergent feeding mechanism for washing machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101253181B1 (en) * | 2006-12-26 | 2013-04-10 | 엘지전자 주식회사 | Dryer and Driving Method Thereof |
-
2016
- 2016-03-28 CN CN201610184694.8A patent/CN107237088B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000350895A (en) * | 1999-06-14 | 2000-12-19 | Matsushita Electric Ind Co Ltd | Washing machine |
| CN1495316A (en) * | 2002-08-07 | 2004-05-12 | 三星电子株式会社 | Washing machine and its control method |
| KR20080032526A (en) * | 2006-10-10 | 2008-04-15 | 삼성전자주식회사 | Control method of washing machine and washing machine using the method |
| JP2009039320A (en) * | 2007-08-09 | 2009-02-26 | Panasonic Corp | Washing machine |
| CN102517850A (en) * | 2011-12-12 | 2012-06-27 | 海尔集团公司 | Method for judging pouring time for automatic pouring system of detergent and washing machine |
| CN104727099A (en) * | 2013-12-24 | 2015-06-24 | 海尔集团公司 | Control method of automatic additive adding |
| CN205024472U (en) * | 2015-09-18 | 2016-02-10 | 南京创维家用电器有限公司 | Washing machine , detergent storage device and detergent liquid level multistage detection device |
| CN105332236A (en) * | 2015-11-27 | 2016-02-17 | 珠海格力电器股份有限公司 | Washing machine and detergent dosage feeding control method and device thereof |
| CN205398988U (en) * | 2016-03-28 | 2016-07-27 | 松下家电研究开发（杭州）有限公司 | Detergent feeding mechanism for washing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107237088A (en) | 2017-10-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107237088B (en) | Detergent dispensing mechanism for washing machine and control method thereof | |
| CN205398988U (en) | Detergent feeding mechanism for washing machine | |
| US6711934B2 (en) | Chemical dispensing system | |
| US20100000586A1 (en) | Household cleaning appliance with a single water flow path for both non-bulk and bulk dispensing | |
| CN108035119B (en) | Detergent feeding device, washing machine and detergent feeding method thereof | |
| WO2015074340A1 (en) | Washing machine with automatically-added additive and method | |
| CN104727099A (en) | Control method of automatic additive adding | |
| EA018881B1 (en) | Water-carrying household appliance having an automatic dosing system, and method for automatic dosing | |
| CN106758016B (en) | Washing liquid feeding system, washing equipment and washing liquid feeding method | |
| CN104047146A (en) | Automatic detergent feeding device for washing machine | |
| JP7119123B2 (en) | Washing device, washing machine, and method of adding detergent | |
| CN109402968B (en) | Method for accurately measuring addition amount of washing auxiliary agent | |
| US20200216998A1 (en) | Additive dispensing system for a washing machine appliance | |
| US9422659B2 (en) | Washing machine appliance and a method of operating the same | |
| ITTO950360A1 (en) | ARRANGEMENT FOR THE REGENERATION OF WATER SOFTENING RESINS IN A WASHING MACHINE | |
| EP3538701B1 (en) | Process for the operation of a washing machine with foam detection and washing machine suitable for this process | |
| CN109797524B (en) | Automatic detergent feeding method and washing machine | |
| CN110130055B (en) | Constant volume feeding device for clothes treating agent | |
| CN107780151A (en) | A kind of washing machine detergent automatic filling system | |
| CN215628822U (en) | Detergent feeding device and washing machine | |
| CN113529363B (en) | Detergent feeding device and washing machine | |
| US11578453B2 (en) | Fault detection for a water level detection system of a washing machine appliance | |
| US20220018055A1 (en) | Fault detection for a water level detection system of a washing machine appliance | |
| US9027381B2 (en) | Appliance bulk dispenser calibration using a pressure sensor | |
| CN215628821U (en) | Detergent feeding device and washing machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
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. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |