CN1225958A - Washing assistant supply device for washing machine - Google Patents
Washing assistant supply device for washing machine Download PDFInfo
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- CN1225958A CN1225958A CN 98104760 CN98104760A CN1225958A CN 1225958 A CN1225958 A CN 1225958A CN 98104760 CN98104760 CN 98104760 CN 98104760 A CN98104760 A CN 98104760A CN 1225958 A CN1225958 A CN 1225958A
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Abstract
The equipment capable of automatically and metrically supplying liquid detergent for washing machine etc. for a long time is characterized by that it uses a magnetic driving piston pump to pump the liquid detergent into said machine, the working process of said pump lies in that under the mutual action of the magnetic force produced by electromagnetic coil positioned outside of cylinder body and the elastic force produced by reset spring the piston containing magnetic body reciprocally moves suck in and discharge the liquid detergent. Said pump has no need of matched motor, and is low in cost, small in volume, good in sealing property, simple in structure, so that it is a ideal matching component for computer fuzzy control type washing machine.
Description
The present invention relates to a kind of device of in machines such as washing machine, supplying aqueous washing assisant.
Existingly supplying the pressurized delivered equipment of aqueous washing assisant to washing machine, mainly is various rotary pumps, as use revolving elasticity vane pump in CN97115757.X.Because need the configuration motor to be used as power, its cost is higher, volume is bigger, and the developing direction of washing machine is: under the prerequisite that guarantees the laundry capacity, therefore more and more miniaturization, cost degradation need a kind of novel pressurized delivered pump to solve this problem.
The objective of the invention is: design a kind of simple in structure, the body kind is little, can be chronically from holder on demand amount supply the device of aqueous washing assisant for machines such as washing machine, dish-washing machine.
For finishing above-mentioned task, solution of the present invention is: use the piston pump of magnetic drives washing assisant to be pumped into from holder the machine such as washing machine, this pump is by cylinder body, piston, inlet check valve, the fluid check-valves, inlet, liquid outlet, compositions such as solenoid, the piston that contains magnetic is installed in the cylinder body, one end of cylinder body is furnished with bonnet, between bonnet and piston, spring is housed, solenoid is installed outside cylinder body, when solenoid is switched on, producing magnetic force promotion piston moves in cylinder body, and the compression spring, when outage, spring is released, promote piston and get back to the origin-location, the suction of pump has been finished in the reciprocating motion of piston, the process of discharge opeing body, piston and cylinder body outside do not have mechanically contact.
Above-mentioned magnetic drives piston pump, its inlet check valve is installed on the axial end of cylinder body, the fluid check-valves is installed on the piston, perhaps inlet check valve is installed on the piston, and the fluid check-valves is installed on the axial end of cylinder body, and this moment, pump was an all-sealed structure, only there are the liquid inlet and outlet and the external world to link, both made owing to behind the piston wear phenomenon of leakage is arranged, and also just can reduce the volumetric efficiency of pump, do not spilt outside the pump and do not have liquid.
Above-mentioned magnetic drives piston pump; magnetic in its piston is corrosion resistant permeability magnetic material; can be the magnetic stainless steel body, or the surface have wrapped up the common ferromagnet of corrosion-resistant protective material, or the bonding magnet that is bonded by common ferromagnetic particulate.
Above-mentioned magnetic drives piston pump, when being installed in the machine such as washing machine, the axis of its cylinder body can be mounted to level, also can be mounted to plumbness.
Above-mentioned magnetic drives piston pump, its cylinder body is made by transparent material, the ruuning situation of piston directly perceived outside pump.
By for the moment basic circuit control, the length of the working time that pump is total is then controlled by the automatic control circuit of washing machine at interval for above-mentioned magnetic drives piston pump, the break-make of the operating current of its solenoid.
Above-mentioned magnetic drives piston pump is parallel with capacitor on its solenoid, with the rate of change of the control magnetic force that solenoid was produced.
Above-mentioned magnetic drives piston pump, the diameter of its inlet, liquid outlet is not more than 10% of piston diameter, utilizes its damping action, makes that the speed of piston when normal operation is lower, thereby reduces the vibration of pump.
Above-mentioned magnetic drives piston pump, the structure of the inlet check valve in its piston is: a through hole is arranged on the piston, be provided with an elastomer that can cover the aperture at piston on the one side of pump chamber, when pump is in the imbibition stroke, because pump chamber is a negative pressure, liquid is washed elastomer open, flows through through hole and enters pump chamber, when pump is in the discharge opeing stroke, because pump chamber pressure increases, elastomer is pressed towards the surface of piston, covers the aperture of through hole, and liquid can't pass through.
Above-mentioned magnetic drives piston pump, the structure of the fluid check-valves that it connects with cylinder body is: magnet has the rounding conical surface of a upward opening, inlet is made in vertex of a cone place perforate at the rounding conical surface, spool is a metal ball body, under the gravity effect, be pressed on the taper seat, cover inlet, so the liquid on spool top can't be to dirty, and the liquid of spool bottom can be under pressure, and the spool of washing Metal Ball open upwards flows out.
Use above-mentioned magnetic drives piston pump, can realize the required precision of washing machine very easily the washing agent measure control.As: the minimum addition of washing agent is 30 milliliters, and control accuracy is ± 10%, and so that piston is reciprocal each time discharge capacity is designed to 3 milliliters, can realize above-mentioned requirements.Because the each reciprocal interval of pump is controlled by for the moment basic circuit, the number of pulses of statistics time base circuit output can calculate total amount of infusion.
Below in conjunction with the drawings and specific embodiments, the present invention is further illustrated:
Fig. 1 is: the schematic diagram of three kinds of mounting means of liquid inlet and outlet check-valves;
Fig. 2 is: this device is installed in the overall appearance stereogram behind the washing machine;
Fig. 3 is: the Washing Machine Panel layout drawing behind this device is installed;
Fig. 4 is: this device level is installed the generalized section of embodiment;
Fig. 5 is: this device level is installed the floor plan of embodiment;
Fig. 6 is: the I among Fig. 5-I generalized section;
Fig. 7 is: the vertical generalized section that embodiment is installed of this device;
In Fig. 1 (A) little figure, be provided with the piston (2) of carrying magnetic body in the cylinder body (1), the axial end of cylinder body (1) is provided with inlet check valve (6), inlet (8), fluid check-valves (7), liquid outlet (9), the bottom of cylinder body (1) is provided with cylinder body bonnet (3), between piston (2) and the cylinder body bonnet (3) spring (5) is housed, solenoid (4) is equipped with in the outside of cylinder body (1), during energising, the magnetic force that solenoid (4) produces promotes magnetic piston (2) and moves downward, compression spring (5), and form vacuum, thereby through inlet check valve (6) at the pump chamber on magnetic piston (2) top, inlet (8) sucks liquid.After outage, spring (5) discharges, and promotes magnetic piston (2) and moves upward, and liquid is extruded outside the pump through fluid check-valves (7), liquid outlet (9).The bore of inlet (8), liquid outlet (9) is specially designed small-bore value, so that magnetic piston (2) only produces low-speed motion under the effect of impacting magnetic force, reduces the vibrations of pump.In this arrangement, also need to offer air-vent (10) in the bottom of cylinder body (1), make magnetic piston (2) when motion, the pressure of its underpart is constant, to improve the efficient of pump.
In Fig. 1 (B) little figure, the inlet check valve of pump (6) is retrofitted in the magnetic piston (2), and inlet (8) has replaced air-vent (10).When solenoid (4) was switched on, the magnetic force of its generation promoted magnetic piston (2) and moves downward, compression spring (5), and form vacuum on the top of magnetic piston (2), thereby through the liquid of inlet check valve (6) sucker bottom; After solenoid (4) outage, spring (5) discharges, promoting magnetic piston (2) moves upward, the liquid on magnetic piston (2) top is extruded outside the pump through fluid check-valves (7), liquid outlet (9), move upward owing to magnetic piston (2) simultaneously, its underpart forms vacuum, thereby sucks liquid through inlet (8).This moment, pump was an all-sealed structure, only had the liquid inlet and outlet and the external world to link, even owing to behind the piston wear, the phenomenon of leakage is arranged, also do not have liquid and spill outside the pump, just can reduce the volumetric efficiency of pump.
In Fig. 1 (C) little figure, the fluid check-valves (7) of pump is retrofitted in the magnetic piston (2), and liquid outlet (9) has replaced air-vent (10), and its operation principle is similar to (B) little figure's, also is all-sealed structure.
In Fig. 2, Fig. 3, panel (12) is arranged at the top of body of the washing machine (11), and the title label (18) of feed liquor interface (15), observation window (16), manual test switch (17), institute's pumping liquid wherein is installed.(as " bleaching agent ").Transparent woven hose (14) links up holder (13) and feed liquor interface (15), manually test switch (17) is the change-over switch of band auto-reset function, when automated location, pump is access in the automatic control circuit of washing machine, when turning round manual position, pump is across-the-line starting then, in case loose one's grip, switch is got back to automated location automatically.
At Fig. 4 is a level of the present invention embodiment when installing: the magnetic piston of being made up of piston body (27), rubber check-valves (25), magnetic (28), seal cover (29) is installed in the transparent cylinder body (23), right-hand member at cylinder body (23) is equipped with cylinder body bonnet (40), spring (31) is housed between cylinder body bonnet (40) and magnetic piston, damping cushion block (30), on cylinder body bonnet (40), be provided with the feed liquor socket, connect with feed liquor interface (15) in the panel (12) through woven hose (43).Left end at cylinder body (23) is provided with fluid socket (20), connects with feed liquor assembly (33) in the blender (32) through sebific duct check-valves (19).Coil (37) is installed in the outside of cylinder body (23) through support (38).The magnetic conductor (39) that reduces magnetic resistance is housed in the outside of coil (37).Entire pump is on screw (35) and (41) are installed in supporting pillar (34) and (42) in the washing machine base plate (44).When coil (37) is switched on, the magnetic force of its generation promotes magnetic piston and moves right, compression spring (31), and in the left side of piston body (27) formation vacuum, at this moment, flat sebific duct check-valves (19) becomes more flat under the atmospheric pressure effect, stoped air or liquid to enter and formed in the pump chamber (22) of vacuum, thereby liquid can only enter the region of no pressure through the inlet (26) in feed liquor interface (15), woven hose (43), the piston body (27), the valve block (24) of unidirectional unlatching in the rubber check-valves (25); After coil (37) outage, spring (31) discharges, and promotes magnetic piston to left movement, and valve block this moment (24) has covered inlet (26), liquid can not flow through, and the liquid in the pump chamber (22) can only be pressed onto in the blender (32) through liquid outlet (20), sebific duct check-valves (19).
In the design, pump is an all-sealed structure, and piston and cylinder body outside be without any mechanically contact, even because wearing and tearing, makes the piston seal performance depreciation, also only is the volumetric efficiency that reduces pump, does not spill outside the pump and do not have liquid, uses as safe as a house.
In order to improve the decay resistance of pump, magnetic in the piston should be corrosion resistant permeability magnetic material, can be the body of stainless steel of magnetic conduction, or the surface have wrapped up the common ferromagnet of corrosion-resistant protective material, or the bonding magnet that is bonded by common ferromagnetic particulate;
In order to reduce cost, present embodiment is to the closed-loop control of position of piston with feedback, but adopts open loop control, by the break-make of the operating current of basic circuit controling electromagnetism coil for the moment at interval; The length of the working time that pump is total is then controlled by the automatic control circuit of washing machine.
In order further to reduce the vibrations of pump, what apply to solenoid is DC voltage, and on solenoid shnt capacitor, flow through the rate of change of the electric current of solenoid, the just rate of change of the magnetic force that is produced with control.
In order to prevent that the liquid on the panel (12) from flowing into machine intimate, feed liquor interface (15) is fixed on the panel (12) through seal washer (45), nut (46).
For the ease of the operation of monitors pump, in the panel above pump (12), be provided with transparent windows (16).In order to improve visual effect, between observation window (16) and pump, be provided with shielding plate (21), can stop the user to see and the thing that monitors that operation is irrelevant.For can be when using night also can monitors pump operation, below pump, be provided with illuminating lamp (36).
In Fig. 5,3 parallel placements of pump, woven hose (43) is connected on the cylinder body bonnet (40), and screw (41) is fixed on cylinder body bonnet (40) on the supporting pillar (42).Magnetic conductor coil blocks such as (39) is installed in outside the cylinder body (23), and shielding plate (21) has screw (47) to be fixed on the base plate (44).In the square frame that shielding plate (21) is surrounded, can see piston body (27), rubber check-valves (25), the valve block motion conditions in transparent cylinder body (23) such as (24), thereby can judge that whether pump is in operate as normal.
In Fig. 6, shielding plate (21) is inserted between the cylinder body (23), and directly screw (47) is fixed on the base plate (44), is observation window (16) in the top of cylinder body (23), is illuminating lamp (36) in the below of cylinder body (23).
Fig. 7 is the embodiment of the present invention when vertically installing, the axis normal that is cylinder body (23) is in ground, installation is compared with level: cylinder body (23), rubber check-valves (25), piston body (27), magnetic (28), seal cover (29), beam (30), spring (31), coil (37), support (38), magnetic conductor parts such as (39) all do not have big variation, the main variation is: the interface length on the cylinder body bonnet (52) that extended, make its can be under the protection of sealing-plug (51) extending panel (12), direct and transparent woven hose (14) links; The fin that usefulness is installed is stretched out at the middle part of cylinder body (23), and fin is fixed on the supporting pillar (54) through screw; The fluid check-valves that cooperates with the fluid socket (20) of cylinder body (23) is located to be seen in the liquid box (48), its structure is: valve body (50) has the conical surface of falling the garden of a upward opening, inlet is made in vertex of a cone place perforate in inverted cone, spool (49) is a corrosion resistant metal ball body, under the gravity effect, be pressed on the taper seat, cover inlet, so the liquid on spool (49) top can't be to dirty, and the liquid of spool (49) bottom can be washed spool (49) open and upwards flow out under the pressure effect of pump.After liquid flows through valve body (50), can in seeing liquid box (48), observe the conveying situation of liquid, thus the operation of energy monitors pump.See liquid box (48) one ends and link through woven hose (53) and cylinder body (23), the other end directly enters blender (32).
By above introduction as can be known, the present invention has the following advantages: 1, pump does not dispose motor, becomes This is low, and volume is little; 2. piston and cylinder body outside do not have mechanically contact, good seal performance; 3. Good self-priming performance is arranged; 4. can prevent gravity flow and flow backwards, 5. good corrosion resistance, 6. Accurately metering, the 7. intuitively operation of pump is safeguarded simply, 8. because most parts Be moulding, system easy to control the quality 9. can be moved for a long time automatically, make washing machine real see real, The automation of overall process is the desirable accessory of computer fuzzy control type washing machine.
Claims (10)
1, a kind of device from aqueous washing agent to machines such as washing machines that supply, it is characterized in that: use the piston pump of magnetic drives that washing assisant is pumped into the above-mentioned machine from holder, this pump is by cylinder body, piston, inlet check valve, the fluid check-valves, inlet, liquid outlet, compositions such as solenoid, the piston that contains magnetic is installed in the cylinder body, one end of cylinder body is furnished with bonnet, between bonnet and piston, spring is housed, solenoid is installed outside cylinder body, when solenoid is switched on, producing magnetic force promotion piston moves in cylinder body, and compression spring, when outage, spring is released, and the promotion piston is got back to original position, the process of the suction liquid of pump has been finished in the reciprocating motion of piston;
2, device according to claim 1, it is characterized in that: the inlet check valve of pump is installed on the axial end of cylinder body, the fluid check-valves is installed on the piston, perhaps inlet check valve is installed on the piston, the fluid check-valves is installed on the axial end of cylinder body, this moment, pump was an all-sealed structure, only had the liquid inlet and outlet and the external world to link;
3, device according to claim 1, it is characterized in that: the magnetic in the piston is corrosion-resistant permeability magnetic material, can be the body of stainless steel of magnetic conduction, or the surface have wrapped up the common ferromagnet of corrosion-resistant protective material, or the bonding magnet that is bonded by common ferromagnetic particulate;
4, device according to claim 1 is characterized in that: the axis of cylinder body can be mounted to level, also can be mounted to plumbness;
5, device according to claim 1, it is characterized in that: cylinder body is made by transparent material, the ruuning situation of piston directly perceived outside pump;
6, device according to claim 1 is characterized in that: by for the moment basic circuit control, then by the automatic control circuit of washing machine controlled at interval by the length of the working time that pump is total for the break-make of the operating current of solenoid;
7, device according to claim 1 is characterized in that: be parallel with capacitor on the solenoid, with the rate of change of the control magnetic force that solenoid was produced;
8, device according to claim 1 is characterized in that: the diameter of inlet, liquid outlet be not more than piston straight 10%, utilize its damping action, make that the speed of piston when normal operation is lower, thereby reduce the vibration of pump;
9, device according to claim 2, it is characterized in that: the structure of the inlet check valve in the piston is: a through hole is arranged on the piston, be provided with an elastomer that can cover the aperture at piston on the one side of pump chamber, when pump is in the imbibition stroke, because pump chamber is a negative pressure, liquid is washed elastomer open, flows through through hole and enters pump chamber, when pump is in the discharge opeing stroke, because pump chamber pressure increases, elastomer is pressed towards the surface of piston, covers the aperture of through hole, and liquid can't pass through.
10, device according to claim 2, it is characterized in that: the structure of the fluid check-valves that connects with cylinder body is: valve body has the rounding conical surface of a upward opening, inlet is made in vertex of a cone place perforate at the rounding conical surface, spool is a metal ball body, under the gravity effect, be pressed on the taper seat, cover inlet, so the liquid on spool top can't be to dirty, and the liquid of spool bottom can be under the pressure effect of pump, and the spool of washing Metal Ball open upwards flows out;
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 98104760 CN1225958A (en) | 1998-02-14 | 1998-02-14 | Washing assistant supply device for washing machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 98104760 CN1225958A (en) | 1998-02-14 | 1998-02-14 | Washing assistant supply device for washing machine |
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CN1225958A true CN1225958A (en) | 1999-08-18 |
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Family Applications (1)
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CN 98104760 Pending CN1225958A (en) | 1998-02-14 | 1998-02-14 | Washing assistant supply device for washing machine |
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CN (1) | CN1225958A (en) |
Cited By (17)
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CN100540790C (en) * | 2003-11-14 | 2009-09-16 | 海尔集团公司 | A kind of control method of supplying with detergent additive |
CN100560839C (en) * | 2003-11-14 | 2009-11-18 | 海尔集团公司 | A kind of control method of supplying with the metrological valve device of detergent additive |
CN101307557B (en) * | 2008-03-24 | 2011-04-20 | 南京乐金熊猫电器有限公司 | Clothes processing device |
CN1875143B (en) * | 2003-10-29 | 2012-04-25 | 宝洁公司 | Processes and apparatuses for applying a benefit composition to one or more fabric articles during a fabric enhancement operation |
CN102052947B (en) * | 2009-11-03 | 2012-07-11 | 杭州神林电子有限公司 | Electromagnetic metering valve |
CN103215788A (en) * | 2012-03-22 | 2013-07-24 | 无锡小天鹅股份有限公司 | Washing machine and washing agent putting pump assembly of washing machine |
CN103225196A (en) * | 2013-03-22 | 2013-07-31 | 无锡小天鹅股份有限公司 | Washing machine and detergent putting pump component thereof |
WO2014063421A1 (en) * | 2012-10-25 | 2014-05-01 | 无锡小天鹅股份有限公司 | Detergent pumping liquid apparatus for washing machine |
CN103866537A (en) * | 2012-12-11 | 2014-06-18 | 海尔集团公司 | Automatic liquid adding device and washing machine |
CN106137083A (en) * | 2015-03-25 | 2016-11-23 | 北京必和易达知识产权咨询中心(有限合伙) | Dish-washing machine entering water electromagnetic valve is utilized to inject the method and device of liquid washing assisant |
CN106350966A (en) * | 2015-07-15 | 2017-01-25 | 青岛海尔洗衣机有限公司 | Automatic releasing device and washing machine |
CN106400408A (en) * | 2011-09-14 | 2017-02-15 | 青岛海尔洗衣机有限公司 | Detergent automatic feeding device of washing machine and control method thereof |
CN110004666A (en) * | 2018-01-04 | 2019-07-12 | 青岛海尔滚筒洗衣机有限公司 | A kind of laundry treatment agents launch structure and washing machine |
CN110431261A (en) * | 2017-02-20 | 2019-11-08 | 三星电子株式会社 | Washing machine |
CN111793174A (en) * | 2020-07-31 | 2020-10-20 | 贵州石博士科技有限公司 | Normal-temperature synthesis method of multi-element-initiated slow-release slump-retaining polycarboxylic acid water reducer |
WO2022068783A1 (en) * | 2020-09-30 | 2022-04-07 | 青岛海尔洗衣机有限公司 | Dryer apparatus having additive dispenser |
WO2024001858A1 (en) * | 2022-06-30 | 2024-01-04 | 青岛海尔洗衣机有限公司 | Automatic dispensing device of washing apparatus, and washing apparatus |
-
1998
- 1998-02-14 CN CN 98104760 patent/CN1225958A/en active Pending
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CN1875143B (en) * | 2003-10-29 | 2012-04-25 | 宝洁公司 | Processes and apparatuses for applying a benefit composition to one or more fabric articles during a fabric enhancement operation |
CN100540790C (en) * | 2003-11-14 | 2009-09-16 | 海尔集团公司 | A kind of control method of supplying with detergent additive |
CN100560839C (en) * | 2003-11-14 | 2009-11-18 | 海尔集团公司 | A kind of control method of supplying with the metrological valve device of detergent additive |
CN101307557B (en) * | 2008-03-24 | 2011-04-20 | 南京乐金熊猫电器有限公司 | Clothes processing device |
CN102052947B (en) * | 2009-11-03 | 2012-07-11 | 杭州神林电子有限公司 | Electromagnetic metering valve |
CN106400408B (en) * | 2011-09-14 | 2019-03-01 | 青岛海尔洗衣机有限公司 | A kind of washing machine detergent embarking device and its control method |
CN106400408A (en) * | 2011-09-14 | 2017-02-15 | 青岛海尔洗衣机有限公司 | Detergent automatic feeding device of washing machine and control method thereof |
CN103215788B8 (en) * | 2012-03-22 | 2016-09-07 | 无锡小天鹅股份有限公司 | Pump assembly thrown in by washing machine and washing agent thereof |
CN103215788B (en) * | 2012-03-22 | 2016-01-13 | 无锡小天鹅股份有限公司 | Pump assembly thrown in by washing machine and washing agent thereof |
CN103215788A (en) * | 2012-03-22 | 2013-07-24 | 无锡小天鹅股份有限公司 | Washing machine and washing agent putting pump assembly of washing machine |
WO2013139311A1 (en) * | 2012-03-22 | 2013-09-26 | 无锡小天鹅股份有限公司 | Washing machine and detergent delivery pump assembly thereof |
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WO2014063421A1 (en) * | 2012-10-25 | 2014-05-01 | 无锡小天鹅股份有限公司 | Detergent pumping liquid apparatus for washing machine |
CN103866537A (en) * | 2012-12-11 | 2014-06-18 | 海尔集团公司 | Automatic liquid adding device and washing machine |
CN103866537B (en) * | 2012-12-11 | 2017-12-29 | 青岛海尔洗衣机有限公司 | A kind of automatic adding device for liquid and washing machine |
CN103225196A (en) * | 2013-03-22 | 2013-07-31 | 无锡小天鹅股份有限公司 | Washing machine and detergent putting pump component thereof |
CN103225196B (en) * | 2013-03-22 | 2016-02-03 | 无锡小天鹅股份有限公司 | Pump assembly thrown in by washing machine and washing agent thereof |
CN106137083A (en) * | 2015-03-25 | 2016-11-23 | 北京必和易达知识产权咨询中心(有限合伙) | Dish-washing machine entering water electromagnetic valve is utilized to inject the method and device of liquid washing assisant |
CN106350966A (en) * | 2015-07-15 | 2017-01-25 | 青岛海尔洗衣机有限公司 | Automatic releasing device and washing machine |
CN110431261A (en) * | 2017-02-20 | 2019-11-08 | 三星电子株式会社 | Washing machine |
CN110431261B (en) * | 2017-02-20 | 2021-12-10 | 三星电子株式会社 | Washing machine |
CN110004666A (en) * | 2018-01-04 | 2019-07-12 | 青岛海尔滚筒洗衣机有限公司 | A kind of laundry treatment agents launch structure and washing machine |
CN111793174A (en) * | 2020-07-31 | 2020-10-20 | 贵州石博士科技有限公司 | Normal-temperature synthesis method of multi-element-initiated slow-release slump-retaining polycarboxylic acid water reducer |
CN111793174B (en) * | 2020-07-31 | 2023-06-20 | 贵州石博士科技股份有限公司 | Normal-temperature synthesis method of multi-initiated slow-release slump-retaining polycarboxylate superplasticizer |
WO2022068783A1 (en) * | 2020-09-30 | 2022-04-07 | 青岛海尔洗衣机有限公司 | Dryer apparatus having additive dispenser |
CN116324074A (en) * | 2020-09-30 | 2023-06-23 | 青岛海尔洗衣机有限公司 | Dryer device with additive dispenser |
WO2024001858A1 (en) * | 2022-06-30 | 2024-01-04 | 青岛海尔洗衣机有限公司 | Automatic dispensing device of washing apparatus, and washing apparatus |
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