CN116516611A - Method for determining rinsing times of full-automatic washing machine - Google Patents
Method for determining rinsing times of full-automatic washing machine Download PDFInfo
- Publication number
- CN116516611A CN116516611A CN202310258538.1A CN202310258538A CN116516611A CN 116516611 A CN116516611 A CN 116516611A CN 202310258538 A CN202310258538 A CN 202310258538A CN 116516611 A CN116516611 A CN 116516611A
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- CN
- China
- Prior art keywords
- washing machine
- rinsing
- automatic washing
- surface tension
- full
- 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.)
- Pending
Links
- 238000005406 washing Methods 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 39
- 239000008237 rinsing water Substances 0.000 claims abstract description 14
- 230000018044 dehydration Effects 0.000 claims abstract description 3
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 3
- 239000007788 liquid Substances 0.000 claims description 19
- 238000001514 detection method Methods 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 5
- 239000011521 glass Substances 0.000 claims description 2
- 238000002791 soaking Methods 0.000 abstract description 3
- 239000003599 detergent Substances 0.000 description 13
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000036541 health Effects 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Classifications
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F33/00—Control of operations performed in washing machines or washer-dryers
- D06F33/30—Control of washing machines characterised by the purpose or target of the control
- D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
- D06F33/38—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of rinsing
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F33/00—Control of operations performed in washing machines or washer-dryers
- D06F33/30—Control of washing machines characterised by the purpose or target of the control
- D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
- D06F33/40—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of centrifugal separation of water from the laundry
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/14—Arrangements for detecting or measuring specific parameters
- D06F34/22—Condition of the washing liquid, e.g. turbidity
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
Abstract
The invention discloses a method for determining the rinsing times of a full-automatic washing machine, which comprises a 10cm 5cm water storage box arranged in the full-automatic washing machine, wherein part of water flows into the water storage box when the full-automatic washing machine drains water, and a surface tension measuring device arranged in the washing machine is utilized to automatically determine whether the surface tension of rinsing water is greater than 70mN/m, so as to determine whether the rinsing times are required to be increased. If the surface tension of the rinse water is less than 70mN/m, the rinsing is continued until the surface tension of the rinse water is 70mN/m or more, and the washing can be ended by dehydration. The method for determining the rinsing times of the full-automatic washing machine disclosed by the invention can be applied in practice, and can automatically complete the functions of soaking, washing, rinsing, dewatering, automatically judging whether the surface tension of the rinsing water is more than 70mN/m, and the like, does not need human intervention in the middle, has simple device, improves the efficiency and saves resources.
Description
Technical Field
The invention belongs to the technical field of determining the rinsing times of a full-automatic washing machine.
Background
When the full-automatic washing machine is used, a program preset on the control panel is selected, the faucet is turned on, the switch is started, and the washing machine automatically completes the functions of soaking, washing, rinsing, dehydrating and the like without human intervention in the middle.
The existing full-automatic washing machine generally comprises a water inlet process, a washing process, a rinsing process and a dewatering process, and when the full-automatic washing machine runs, the rinsing times of the washing machine are set in advance, generally 3 times, and cannot be changed. However, since the amount of the added liquid detergent or the washing powder varies from person to person, the number of rinsing times set by the current full-automatic washing machine cannot be changed, and whether or not the content of the washing agent on the clothes is cleaned or not and when the washing agent is cleaned cannot be determined. The residual detergent has an influence on the physical health of people.
The rinsing process of the full-automatic washing machine mainly uses water to remove residual stains and detergents on clothes, but because the rinsing times are fixed, if detergent residues appear, the detergent residues on the clothes can be caused, and the condition that the detergent is cleaned after three rinsing can also appear, the existing full-automatic washing process is not judged.
Disclosure of Invention
Based on the defects in the prior art, the method for determining the rinsing times of the full-automatic washing machine disclosed by the invention is used for judging the residual content of the detergent in each rinsing water, and determining whether the rinsing times are required to be increased by judging whether the surface tension of the rinsed water is less than 70mN/m or not.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings of the embodiments will be briefly described below.
FIG. 1 is a flow chart showing the operation of a conventional full-automatic washing machine
FIG. 2 is an improved flow chart of the operation of the fully automatic washing machine
FIG. 3 is a schematic view of an improved fully automatic washing machine
FIG. 4 is a schematic diagram of a surface tension detecting device of a fully automatic washing machine
FIG. 5 is a schematic diagram of the maximum bubble pressure method for measuring the surface tension
Detailed Description
Specific embodiments of the invention are described in detail below with reference to the accompanying drawings, which form a part of the specification. Other aspects, features and advantages of the present invention will become apparent from the following detailed description, which, by way of example, illustrates the principles of the invention.
The existing washing machine generally sets 3 times of rinsing to achieve the aim of cleaning, but because the quantity of the added liquid laundry detergent or the washing powder is different from person to person, the set rinsing times of the existing full-automatic washing machine cannot be changed, and whether the content of the detergent on clothes is clean or not and when the detergent is clean cannot be determined. If the washing agent is not rinsed after 3 times of rinsing, the residual washing agent has influence on the health of people; if the rinsing times are less than 3 times, the detergent can be rinsed completely, and the water resource and the electric resource can be wasted when the washing machine is set at present.
The invention improves the function of the current full-automatic washing machine (shown in figure 1). The method comprises the steps of adding a rinsing water surface tension detection part in the washing machine, and measuring the surface tension of the full-automatic washing machine after rinsing so as to determine the rinsing times of the full-automatic washing machine. The specific steps are as follows and shown in fig. 2.
(1) Selecting a preset program on the control panel, adding a detergent according to the requirement, opening a water tap and starting a switch;
(2) The washing machine automatically completes the sequence of soaking, washing, rinsing and dewatering;
(3) Collecting water after each rinsing by using a water storage box (shown in figure 3) in the improved washing machine, and measuring the surface tension of the rinsing water by using a surface tension detection device;
(4) Uploading the measured surface tension value to a control part (shown in fig. 4) of the full-automatic washing machine so as to judge the next working of the full-automatic washing machine;
the invention designs and shunts part of the water outlet of the full-automatic washing machine, a water storage box with the volume of 10cm 5cm is arranged in the full-automatic washing machine, and part of water flows into the water storage box when the full-automatic washing machine drains water so as to be ready for measuring the surface tension of rinse water (shown in figure 3). The surface tension of the water is usually 75-80 mN/m, the detergent has the function of reducing the surface tension of the water, if the surface tension of the rinse water is less than 70mN/m, the foam in the rinse water is not cleaned, the rinse is needed to be continued, and if the surface tension of the rinse water is more than or equal to 70mN/m, the full-automatic washing machine performs the next work (dehydration).
The surface tension detection device consists of a bubble generation unit, a pressure sensing unit, a temperature detection unit and a control system, wherein the bubble generation unit, the pressure sensing unit and the temperature detection unit are respectively connected with the control system, and the bubble generation unit is connected with the pressure sensing unit. The bubble generation unit comprises a capillary tube, a micropump and a first electronic driving controller, and is used for outputting gas to the surface of the liquid to generate bubbles; the micro pump is provided with an air inlet, an air outlet and a connector, one end of the capillary tube is connected with the micro pump through the air outlet, and the first driving controller is connected with the control system. The pressure sensing unit comprises a pressure sensor and a second electronic driving controller and is used for detecting the pressure generated by bubbles; the capillary tube, the air outlet and the pressure sensor are connected with each other through a tee joint (shown in figure 5), and the second electronic driver is connected with the pressure sensor and the control system. The temperature detection unit comprises a temperature detector and a temperature sensing rod, wherein the temperature detector and the temperature sensing rod are used for detecting the temperature of liquid, one end of the temperature sensing rod is connected with the temperature detector, the other end of the temperature sensing rod penetrates deep into the liquid, and the temperature detector is connected with the control system.
The surface tension of the liquid is generated because a thin layer exists on the contact surface of the liquid and the gas, the thin layer is a surface layer, molecules in the surface layer are thinner than the inside of the liquid, and the interaction between the molecules is expressed as attraction. The molecules volatilize strong attractive force on the surface of the liquid, and mutually attract adjacent molecules, and the force is surface tension, and the physical meaning is as follows: forces acting perpendicular to the surface per unit length in a direction tangential to the surface. Surface tension is one of the important characteristics of a liquid, and is related to the temperature, pressure, concentration, and composition of another phase that is co-present.
The device adopts a maximum bubble pressure method to measure the surface tension, and the principle of the method is shown in figure 5, wherein the principle of the method is that bubbles generated by the maximum pressure difference of two glass pipe orifices with different diameters in liquid under the pressure of the bubbles are proportional to the surface tension. The capillary tube with a flush lower opening is vertically inserted into the liquid to be detected, the pipe opening is just tangential with the liquid level, at the moment, a concave liquid level is formed in the capillary tube, gas is discharged through the gas outlet of the micropump, the curvature radius of the bubble is gradually increased along with the gradual increase of the pressure difference between the inside and the outside of the capillary tube, when the radius of the bubble is equal to the radius of the capillary tube, the radius of the bubble reaches the minimum value, the pressure in the bubble reaches the maximum value, and the pressure difference (delta p) between the inside and the outside of the bubble at the moment can be measured by the pressure sensor, so that the surface tension is calculated according to the pressure difference between the inside and the outside of the bubble and the curvature radius of the bubble (at the moment, the curvature radius of the bubble is equal to the inner diameter of the capillary tube), and the relation formula is as follows:
Δp＝2γ/R (1)
wherein Δp is the pressure difference; gamma is the surface tension; r is the radius of curvature of the bubble.
From the above, the surface tension of the liquid can be measured. The surface tension detection device detects the water after each rinsing, and feeds back the measurement result to the circuit system of the full-automatic washing machine, and if the detection result is smaller than 70mN/m, the next step of instruction is given to be rinsing.
In order to detect the surface tension of each rinsing water, the water of each rinsing needs to be collected, and the water storage box needs to be emptied for the next water storage after detection, therefore, the invention adopts a switch design, wherein S 1 For the water inlet switch, a liquid level control switch is adopted, when the liquid level reaches 2/3 of the water storage box, the switch is automatically closed to stop water inlet, and when the liquid level is lower than the 2/3 of the container, the switch S is used for controlling the water inlet 1 Automatically opening. S is S 2 The water draining switch is directly controlled by a circuit system, when the full-automatic washing machine is rinsed once, water is drained, after surface tension detection, the circuit system gives out the next instruction, and after the instruction is sent out, S 2 And automatically opening to drain until the water is drained completely, and closing the switch. The schematic diagram of the improved full-automatic washing machine is shown in fig. 3, and the specific design of the surface tension detection device is shown in fig. 4.
Claims (6)
1. A method for determining the rinsing times of a full-automatic washing machine comprises the steps of diversion treatment of rinsing water of the full-automatic washing machine, a collecting method of the rinsing water, a measuring method of the surface tension of the rinsing water and a determining basis of the rinsing times of the full-automatic washing machine.
2. The method of determining the number of rinsing cycles of a full-automatic washing machine as claimed in claim 1, wherein the diversion process is partially designed at the drain of the full-automatic washing machine to collect the rinsing water.
3. A method of determining the number of rinsing cycles in a fully automatic washing machine as claimed in claim 2, wherein a 10cm x 5cm water storage tank is provided in the fully automatic washing machine, and a portion of water flows into the water storage tank when the fully automatic washing machine is drained to prepare for measuring the surface tension of the rinsing water.
4. A method of determining the number of rinsing cycles of a fully automatic washing machine as claimed in claim 1, wherein the surface tension is measured using a maximum bubble pressure method; the bubble is under pressure, and the bubble generated by the maximum pressure difference of two glass orifices with different diameters in the liquid is proportional to the surface tension.
5. The method of determining the number of rinsing cycles of a full-automatic washing machine as claimed in claim 1, wherein the surface tension detecting means is composed of a bubble generating unit, a pressure sensing unit, a temperature detecting unit, and a control system.
6. The method for determining the number of rinsing times of a full-automatic washing machine as claimed in claim 1, wherein the rinsing water in the water storage box is judged by using a surface tension detection device, and if the surface tension of the rinsing water is less than 70mN/m, the rinsing is required to be continued until the surface tension of the rinsing water is greater than or equal to 70mN/m, and the washing can be ended by dehydration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310258538.1A CN116516611A (en) | 2023-03-17 | 2023-03-17 | Method for determining rinsing times of full-automatic washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310258538.1A CN116516611A (en) | 2023-03-17 | 2023-03-17 | Method for determining rinsing times of full-automatic washing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116516611A true CN116516611A (en) | 2023-08-01 |
Family
ID=87400109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310258538.1A Pending CN116516611A (en) | 2023-03-17 | 2023-03-17 | Method for determining rinsing times of full-automatic washing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116516611A (en) |
-
2023
- 2023-03-17 CN CN202310258538.1A patent/CN116516611A/en active Pending
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