WO2017101616A1 - 一种高效洗干衣机及控制方法 - Google Patents

一种高效洗干衣机及控制方法 Download PDF

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Publication number
WO2017101616A1
WO2017101616A1 PCT/CN2016/105078 CN2016105078W WO2017101616A1 WO 2017101616 A1 WO2017101616 A1 WO 2017101616A1 CN 2016105078 W CN2016105078 W CN 2016105078W WO 2017101616 A1 WO2017101616 A1 WO 2017101616A1
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WIPO (PCT)
Prior art keywords
drying
heat
heat exchange
air
water
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PCT/CN2016/105078
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English (en)
French (fr)
Inventor
劳春峰
李以民
徐永洪
张华成
Original Assignee
青岛海尔滚筒洗衣机有限公司
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Application filed by 青岛海尔滚筒洗衣机有限公司 filed Critical 青岛海尔滚筒洗衣机有限公司
Priority to EP16874673.3A priority Critical patent/EP3392397A4/en
Priority to US16/061,679 priority patent/US20180371681A1/en
Priority to KR1020187019991A priority patent/KR20180093053A/ko
Priority to JP2018531222A priority patent/JP2019502449A/ja
Publication of WO2017101616A1 publication Critical patent/WO2017101616A1/zh

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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
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/24—Condensing arrangements
    • 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
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 
    • 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
    • D06F58/00—Domestic laundry dryers
    • D06F58/30—Drying processes 
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/28—Air properties
    • D06F2103/34—Humidity
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/44—Current or voltage
    • 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/46—Drum speed; Actuation of motors, e.g. starting or interrupting
    • 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
    • D06F25/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and having further drying means, e.g. using hot air 
    • 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

Definitions

  • the invention relates to a household appliance, in particular to an efficient washing and drying machine and a control method.
  • the dryer When drying the clothes, the dryer first uses a heater to heat the air.
  • the hot air is driven into the washing tub by the fan and heats the residual moisture on the clothes into water vapor.
  • the water vapor enters the condensing passage with the hot air driven by the fan.
  • the water vapor is condensed into liquid water in the condensing passage, and the relatively dry air is again heated by the heater into the washing tub to participate in the drying cycle. After a certain period of circulation, the clothes are dried.
  • the present invention has been made in view of this.
  • Another object of the present invention is to provide a method of controlling a high efficiency washing and drying machine.
  • a high-efficiency washing and drying machine comprising a clothes accommodating cylinder and a drying air duct disposed outside the laundry accommodating cylinder and connected thereto, further comprising:
  • a condensing device having a heat absorbing portion and a heat releasing portion, wherein the heat absorbing portion is disposed in the drying air passage to absorb heat in the air in the drying air passage and condense the heat radiating portion Provided outside the drying air duct to dissipate heat from the heat absorbing portion;
  • At least one spray head for spraying water to the heat absorption portion of the condensation device and a drain port connected to the outside of the drying air passage are disposed in the drying air passage.
  • the condensing device includes a heat pipe group having an evaporation section and a condensation section, a first heat exchange sheet group disposed in an evaporation section of the heat pipe group, and a second heat exchange sheet group disposed in a condensation section of the heat pipe group ;
  • the evaporation section and the first heat exchange sheet group form the heat absorption portion of the condensation device, and the condensation section and the second heat exchange sheet group form the heat release portion of the condensation device.
  • the heat exchange fins of the first heat exchange sheet group are vertically distributed in the drying air duct, the spray heads are disposed above the first heat exchange sheet group, and the water outlet direction of the water outlets is set to be parallel to The direction of the heat exchange sheet is such that the water inlet is disposed outside the drying air passage to connect the water supply pipe of the washing and drying machine.
  • the nozzle is provided with a guiding structure at the water outlet so that the sprayed water sufficiently covers the heat exchange sheet.
  • the drying duct has an air supply opening and a return air opening, the air supply opening and the return air opening are disposed at a diagonal position of the laundry receiving cylinder, and the evaporation section of the heat pipe group and the first heat exchange sheet group are disposed on The section of the drying duct adjacent to the return air vent.
  • the condensing device further includes: a heat dissipating fan disposed in the condensation section of the heat pipe group and the second heat exchange sheet group to promote the condensation section of the heat pipe group and the second heat exchange sheet group Heat is emitted.
  • drying air duct further comprising a heating device disposed in the drying air duct, the heating device being disposed downstream of the condensing device, wherein the drying air duct is further provided with a driving drying airflow between the drying air duct and the laundry accommodating cylinder Circulating fan.
  • a control method for a high-efficiency washing and drying machine condensing device comprising: supplying water to the nozzle at least after a drying process to flush dirt adhering to the condensing device, and discharging the flushing water and the dirt through the drain port Dry the air duct.
  • control method further includes heating the flushing water supplied to the nozzle or supplying water to the nozzle in an intermittent manner before supplying water to the nozzle.
  • a method of controlling a condensing device for a high-efficiency washing and drying machine comprising: supplying water to the nozzle in an early stage of a drying process, and distributing it to the condensing device to condense air discharged from the laundry accommodating cylinder.
  • a method of controlling a condensing device for an efficient washing and drying machine comprising: supplying water to the nozzle at a later stage of the drying process, and distributing it to the condensing device to cool the air discharged from the laundry accommodating cylinder.
  • the high-efficiency washing and drying machine and the control method of the present invention are provided by disposing a spray head for spraying water to the condensing device in the drying air duct of the washing and drying machine to remove Contaminants such as wire dust adhered to the heat exchange pipe of the condensing device or the heat exchange sheet ensure the heat exchange efficiency of the condensing device, inhibit the growth of bacteria on the condensing pipe and the condensing device, and achieve the purpose of energy saving, consumption and health.
  • the washing and drying machine of the present invention utilizes heat pipe technology It is used to condense the hot air in the drying air duct, and has the characteristics of low energy consumption, compact structure, good drying effect and strong practicability.
  • FIG. 1 Schematic structural view of the present invention
  • Figure 2 is a schematic view showing the structure of the present invention after removing the casing
  • Figure 3 Schematic diagram of the structure after removing the pipe wall of the drying duct for Figure 2;
  • Figure 4 is a schematic view showing the structure of a condensing device of the present invention.
  • Figure 5 is a schematic view showing the position of the condensing device of the present invention in the drying duct;
  • Figure 6 is a schematic view showing the structure of the nozzle of the present invention.
  • a high-efficiency washer-drying machine includes a cabinet 1 having a garment taking-out hole for dispensing laundry into and out of the laundry.
  • a door body 2 connected to the cabinet 1 is provided at the clothes pick-and-place hole to selectively open and/or close the clothes pick-and-place hole.
  • the high-efficiency washing and drying machine further includes a clothes accommodating cylinder 3, a driving device 7, a drying air duct 4, and a drying air duct 4 which are disposed in the casing 1.
  • the drying duct 4 is disposed outside and in communication with the laundry accommodating cylinder 3, and the laundry accommodating cylinder 3 may include an outer cylinder and an inner cylinder (not shown) for containing laundry to be dried.
  • the driving device 7 is mounted at one end of the closed portion of the laundry receiving cylinder 3 for controllably driving the inner cylinder to rotate so that the inner cylinder is rotatably disposed in the outer cylinder.
  • the drive device 7 can be a drive motor.
  • the drying duct 4 is for blowing a dry airflow into the laundry accommodating cylinder 3 during the drying process to dry the laundry in the laundry accommodating cylinder 3.
  • the high-efficiency washing and drying machine further includes a condensing device 5 having a heat absorbing portion and a heat releasing portion, and the heat absorbing portion is disposed in the drying air duct 4 to absorb the drying air.
  • the heat in the air inside the road 4 and into it The condensation is performed, and the heat release portion is disposed outside the drying air passage 4 to dissipate heat from the heat absorption portion.
  • the drying duct 4 is provided with at least a head 6 for spraying water to the heat absorbing portion of the condensing device 5 and a drain port 14 connected to the outside of the drying duct 4. Since the air flowing out of the clothes accommodating cylinder 3 carries a large amount of water vapor, the condensing device 5 absorbs the heat in the air, and the water vapor carried in the air is condensed into liquid water, so that the condensed air becomes relatively comparative. Drying to re-enter the clothes accommodating cylinder 3 to dry the laundry.
  • the condensing device 5 includes a heat pipe group 10 having an evaporation section and a condensation section, a first heat exchange sheet group 11 disposed in the evaporation section of the heat pipe group 10, and a condensation section disposed in the heat pipe group 10.
  • the second heat exchange sheet group 12 specifically, the first heat exchange sheet group 11 and the second heat exchange sheet group 12 may be respectively composed of a plurality of heat exchange sheets assembled in parallel, and the plurality of heat exchange sheets are A through hole is opened at the corresponding position.
  • the heat pipe group 10 is composed of a plurality of heat pipes arranged side by side, and has a common evaporation section and a condensation section, and the evaporation section passes through the through holes of the first heat exchange sheet group 11 and is fixedly assembled with the heat exchange sheet.
  • the condensation section passes through the through hole of the second heat exchange sheet group 12 and is fixedly assembled with the heat exchange sheet.
  • the evaporation section and the first heat exchange sheet group 11 form the heat absorbing portion of the condensing device 5
  • the condensation section and the second heat exchange sheet group 12 form the condensing device 5 Heat release.
  • the evaporation section of the heat pipe group 10 and the first heat exchange sheet group 11 are located in the drying air duct 4 to absorb heat in the air in the drying air duct 4 and condense the same.
  • the condensation section of the heat pipe group 10 and the second heat exchange sheet group 12 are located outside the drying air duct 4 to dissipate the evaporation section from the heat pipe group 10 and the first heat exchange sheet group 11 Heat.
  • the heat exchange sheet can increase the contact area of the heat pipe group 10 with the air, rapidly transfer heat, and improve heat exchange efficiency.
  • the heat pipe is a heat transfer device, which fully utilizes the principle of heat conduction and the rapid heat transfer property of the phase change medium, and rapidly transfers the heat of the heat generating object to the heat source through the heat pipe, and the heat conductivity thereof exceeds the heat conductivity of any known metal.
  • the heat pipe can be divided into three sections: the evaporation section, the adiabatic section and the condensation section.
  • the evaporation section of the heat pipe is heated, the working fluid is heated and evaporated, and the steam flows along the steam chamber to the condensation section of the heat pipe under the pressure difference, the steam condenses and releases latent heat in the condensation section, and the heat is absorbed by the condensation section to be immersed in the working liquid.
  • the condensing device 5 in the form of a heat pipe can quickly dissipate heat from the hot and humid air in the clothes accommodating cylinder 3, and has the advantages of high condensation efficiency and low energy consumption.
  • the tube material of the heat pipe may be copper, copper alloy, aluminum, aluminum alloy, stainless steel or other materials to ensure the heat transfer efficiency of the condensing device 5.
  • the heat exchange sheets of the first heat exchange sheet group 11 are vertically distributed in the drying air duct 4, and the spray heads 6 are disposed above the first heat exchange sheet group 11.
  • the water outlet direction of the water outlet 62 is parallel to the extending direction of the heat exchange sheet, and the water inlet 61 is disposed outside the drying air duct 4 to connect the water supply pipe of the washing and drying machine, and the water supply pipe is provided with a water supply valve
  • the water supply valve can control the on and off of the water supply pipe under control.
  • the spray head 6 Since the spray head 6 is disposed above the heat exchange sheet, the water sprayed from the spray head 6 flushes the heat exchange sheet from top to bottom, so that under the dual action of gravity and water flow impact force, the wire scraps remaining on the heat exchange sheet and The dirt is more easily washed away and eventually discharged through the drain 14 at the bottom of the drying tunnel 4.
  • the number of the heads 6 is two or more so that the water spray area can completely cover the surface of the heat exchange sheet.
  • the head 6 is provided at the water outlet 62 with a guiding structure 63 that causes the water jetted from the head 6 to act radially on the surface of the heat exchange sheet to cause flushing.
  • the active area of the water can fully cover the surface of the heat exchange sheet to achieve a better flushing effect.
  • the drying duct 4 has an air blowing port 41 and a return air opening 42.
  • the air blowing port 41 may be located at a side upper portion of the front side of the outer tube, and the air return port 42 of the drying air duct 4 may be located outside.
  • the side lower portion behind the barrel, the side upper portion in front of the outer tube and the side lower portion behind the outer tube are diagonally opposed. That is, the air supply port 41 and the return air opening 42 may be located substantially at two corner positions of the diagonal line of the axial section of the outer cylinder via its central axis.
  • the hot air entering the laundry accommodating cylinder 3 by the air blowing port 41 can flow through the longest path in the laundry accommodating cylinder 3 as much as possible to increase the contact time of the hot air with the laundry to be dried in the laundry accommodating cylinder 3, Thereby improving the drying effect and shortening the drying time.
  • the air supply port 41 may be located at a side upper portion of the outer cylinder neck, and the air return port 42 may be located at a side lower portion of the outer cylinder bottom and near the edge of the outer cylinder bottom.
  • the air blowing port 41 and the return air opening 42 may be located at other diagonally opposite positions of the outer cylinder.
  • the condensing device 5 further includes a heat dissipating fan 13 disposed in the condensation section of the heat pipe group 10 and the second heat exchange sheet group 12 to promote heat dissipation of the condensation section of the heat pipe group 10 and the second heat exchange sheet group 12.
  • the heat dissipation fan 13 may be an axial flow fan, and the blowing direction may be the same as the heat exchange piece extending direction in the second heat exchange sheet group 12.
  • the condensation section of the heat pipe group 10 and the second heat exchange sheet group 12 may be disposed in an environmental space outside the drying air duct 4 and located inside the casing 1, and the air temperature in the environmental space is relatively low. Thereby, it is ensured that the heat can be effectively dissipated, and the condensation efficiency of the condensing device 5 is further improved.
  • the washing and drying machine further includes a fan 9.
  • the fan 9 is disposed in the drying duct 4 and is located in the condensing device 5 Downstream. The fan 9 is used to drive the drying airflow to circulate between the drying duct 4 and the laundry receiving cylinder 3 to speed up the drying process.
  • the washing and drying machine further includes a heating device 8 in order to make the drying airflow more efficiently evaporate moisture in the laundry.
  • the heating device 8 is disposed in the drying duct 4 and located downstream of the condensing device 5 and is configured to heat the air flowing therethrough such that the air forms hot air at a temperature higher than the ambient temperature. That is, the heating device 8 can increase the temperature of the dry airflow entering the laundry containing cylinder 3.
  • the heating device 8 is located downstream of the condensing device 5 in the drying duct 4, that is, the airflow from the laundry accommodating cylinder 3 is first condensed by the condensing device 5, and the condensed airflow is heated by the heating device 8 to avoid the clothes from the clothes.
  • the moisture in the airflow accommodating the cartridge 3 is evaporated again into the laundry accommodating cylinder 3 during the heating process to affect the dry clothes effect.
  • the heating device 8 can control the intermittent heating of the air flowing therethrough. For example, when the temperature of the dry airflow sent into the laundry receiving cylinder 3 is higher than the first preset temperature, the heating device 8 may be stopped to prevent the drying airflow from being too high to cause damage to the laundry. When the temperature of the drying airflow fed into the laundry receiving cylinder 3 is lower than the second predetermined temperature, the heating device 8 can be turned on to continue the heating operation of the air flowing therethrough.
  • the first preset temperature may be, for example, 130 ° C
  • the second preset temperature may be, for example, 90 ° C.
  • the drying duct 4 may comprise an upstream section 40a provided with a condensing device 5, a downstream section 40c provided with a fan 9 and a heating means 8, and an upstream section 40a and a downstream section 40c Intermediate section 40b between.
  • the upstream section 40a is in direct communication with the return air port 42
  • the downstream section 40c is in direct communication with the air supply port 41.
  • the downstream section 40c extends parallel to the central axis direction of the laundry receiving cylinder 3, and at least a portion of the intermediate section 40b is perpendicular to the downstream section 40c.
  • the downstream section 40c of the drying duct 4 may be located above the side of the laundry receiving cylinder 3 and extend substantially in the horizontal direction.
  • the fan 9 is located downstream of the downstream section 40c adjacent to the intermediate section 40b and the heating device 8 is located downstream of the fan 9.
  • the downstream section 40c of the drying tunnel 4 may be substantially flat tubular, and the heating device 8 may be an S-shaped tubular heater fixed within the downstream section 40c.
  • the intermediate section 40b and the downstream section 40c of the drying duct 4 may constitute a generally L-shaped duct, at least a portion of the intermediate section 40b may extend downwardly perpendicular to the downstream section 40c, and the upstream section 40a may be perpendicular to the garment
  • the central axis of the accommodating cylinder 3 extends in a horizontal plane.
  • the control method includes supplying water to the nozzle 6 at least after the drying process to flush the dirt attached to the condensing device 5, and discharging the flushing water and the dirt through the drain port 14 to the drying duct 4, specifically Ground, in the dry clothes program
  • the fan 9 stops running and starts the cleaning process when the air is cooled in the machine.
  • the cleaning procedure is: the water supply valve works in an intermittent manner, so that the cleaning process is intermittent cleaning, that is, flushing for 5-15 seconds, stopping 5- 15 seconds; rinse again for 5-15 seconds, stop for 5-15 seconds; so after intermittent flushing several times, then continue to rinse with large water pressure and water for 20-30 seconds.
  • the advantage of this arrangement is that the rinsing of the swarf and the dissolution of the adhering dirt by intermittent rinsing, and then the application of external force to flush the swarf and dirt through the continuous flow of water can ensure an optimal cleaning effect.
  • the control method includes supplying water to the nozzle 6 at least after the drying process to flush the dirt attached to the condensing device 5, and discharging the flushing water and the dirt through the drain port 14 to the drying duct 4, specifically After the drying process is finished, the fan 9 stops running and starts the air cooling in the machine to start the cleaning process.
  • the cleaning process is: the cleaning water is preheated in the machine through the heating device, and then supplied to the nozzle 6 through the water supply pipe, and passes through the nozzle 6
  • the water outlet 62 is flushed onto the heat pipe set and the heat exchange sheet.
  • the advantage of this arrangement is that the heated hot water flow can quickly dissolve the adhering dirt, thereby quickly washing away the dirt and the wire scraps, thereby ensuring the best cleaning effect.
  • the flushing water volume is generally 2-4 liters, so that only a low-power heating device can be heated for a short period of time to meet the cleaning requirements and achieve low energy consumption.
  • the control method includes supplying water to the shower head 6 in the early stage of the drying process, and distributing it to the condensing device 5 to condense air discharged from the laundry accommodating cylinder 3 by spraying water to the condensing device 5. Achieve the role of assisting condensation. Specifically, in the early stage of the drying process, the water supply valve is opened to supply water to the shower head 6, and a small amount of cold water is sprayed to the upstream section 40a for condensing water vapor.
  • the control method includes supplying water to the nozzle 6 at a later stage of the drying process, and distributing it to the condensing device 5 to cool the air discharged from the laundry accommodating cylinder 3 by spraying water to the condensing device 5. Achieve the role of cooling. Specifically, after the drying process, that is, after the laundry is dried, the heating device 8 is first turned off, the fan 9 continues to operate, and the water supply valve is opened to supply water to the nozzle 6, and a small amount of cold water is sprayed to the upstream section 40a. Used to reduce the temperature inside the outer cylinder and drying duct.
  • the air discharged from the outer cylinder still has a high temperature after the laundry is dried, it takes a period of time to cool, and during this time, it is generally not suitable to directly open the outer cylinder, and therefore, spray a small amount to the upstream section 40a.
  • the cold water, and through the circulation of the fan 9, can quickly lower the temperature inside the laundry accommodating cylinder 3.
  • first embodiment and the second embodiment of the above-mentioned high-efficiency washing and drying machine control method or the first embodiment and the third embodiment, the fourth embodiment, or the third embodiment and the fourth embodiment can be combined with each other. Achieve better use.
  • upstream and downstream as referred to in the above embodiments of the present invention are in the direction of flow of air.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Control Of Washing Machine And Dryer (AREA)

Abstract

一种高效洗干衣机及控制方法，高效洗干衣机包括衣物容纳筒（3），设置在衣物容纳筒（3）外并与其连通的烘干风道（4），具有吸热部和放热部的冷凝装置（5），所述吸热部设置于烘干风道（4）内，所述放热部设置于烘干风道（4）外；所述烘干风道（4）内至少设置有一向所述冷凝装置（5）喷水的喷头（6）和连通至烘干风道（4）外的排水口（14）。洗干衣机的控制方法包括，至少在干衣程序后向所述喷头（6）供水以冲洗附着在冷凝装置（5）上的污物，并通过所述排水口（14）将冲洗水与污物排出烘干风道（4）。显著提高洗干衣机的冷凝效率，缩短干衣时间，具有良好的节能效果，同时保证冷凝装置（5）的换热效率，实现节能降耗、健康的效果。

Description

一种高效洗干衣机及控制方法 技术领域
本发明涉及家用电器，尤其是一种高效洗干衣机及控制方法。
背景技术
干衣机在烘干衣物时，首先利用加热器加热空气，热空气被风机驱动进入洗衣筒并把衣物上残留的水分加热成水蒸汽，水蒸汽随着热空气在风机驱动下进入冷凝通道，水蒸汽在冷凝通道里被冷凝成液态水排走，相对干燥的空气再次经加热器加热进入洗衣筒参与干衣循环。经过一定时间的循环过程，衣物即被烘干。
对于现有的在干衣循环通路内设置换热管路或换热片等方式冷凝装置的洗干衣机，由于在干衣过程中会有一些衣物线屑和其他污物会随循环气流到达并粘附在冷凝装置上，造成冷凝装置上的线屑和污物堆积而逐渐降低冷凝效率，并引起该处细菌滋生。
鉴于此提出本发明。
发明内容
本发明的一个目的在于克服现有技术的不足，提供一种能够自动清洁其内部冷凝装置的高效洗干衣机。
本发明的另一目的在于提供一种高效洗干衣机的控制方法。
为了实现上述发明目的，本发明采用如下技术方案：
一种高效洗干衣机，包括衣物容纳筒和设置在衣物容纳筒外并与其连通的烘干风道，还包括：
冷凝装置，所述冷凝装置具有吸热部和放热部，所述吸热部设置于烘干风道内，以吸收烘干风道内的空气中的热量并对其进行冷凝，所述放热部设置于烘干风道外，以散发来自所述吸热部的热量；
所述烘干风道内至少设置有一向所述冷凝装置吸热部喷水的喷头和连通至烘干风道外的排水口。
进一步，所述冷凝装置包括具有蒸发段和冷凝段的热管组，设置于所述热管组的蒸发段的第一换热片组和设置于所述热管组的冷凝段的第二换热片组；
所述蒸发段和所述第一换热片组形成所述冷凝装置的所述吸热部，所述冷凝段和所述第二换热片组形成所述冷凝装置的所述放热部。
进一步，所述第一换热片组的换热片竖直的均布于烘干风道内，所述喷头设置在第一换热片组的上方，且其出水口的出水方向设置为平行于换热片的方向，其进水口设置在烘干风道外部以连接洗干衣机的供水管。
进一步，所述喷头在出水口处设有导向结构，以使喷出的水充分覆盖换热片。
进一步，所述烘干风道具有送风口和回风口，所述送风口与回风口设置在衣物容纳筒的对角位置，所述热管组的蒸发段和所述第一换热片组设置于所述烘干风道的邻近所述回风口的区段内。
进一步，所述冷凝装置还包括：散热风机，设置于所述热管组的冷凝段和所述第二换热片组，以促进所述热管组的冷凝段和所述第二换热片组的热量散发。
进一步，还包括设置在烘干风道内的加热装置，所述加热装置设置在冷凝装置的下游，在所述烘干风道内还设有驱动烘干气流在烘干风道和衣物容纳筒之间循环流通的风机。
一种高效洗干衣机冷凝装置的控制方法，包括，至少在干衣程序后向所述喷头供水以冲洗附着在冷凝装置上的污物，并通过所述排水口将冲洗水与污物排出烘干风道。
进一步，该控制方法还包括，在向所述喷头供水之前，先将供给喷头的冲洗水进行加热或以间断的方式向所述喷头供水。
一种高效洗干衣机冷凝装置的控制方法，包括，在烘干程序的前期向所述喷头供水，并分配至所述冷凝装置上，以对从所述衣物容纳筒排出的空气进行冷凝。
一种高效洗干衣机冷凝装置的控制方法，包括，在烘干程序的后期向所述喷头供水，并分配至所述冷凝装置上，以对从所述衣物容纳筒排出的空气进行降温。
采用本发明所述的技术方案后，带来以下有益效果：本发明的高效洗干衣机及控制方法是通过在洗干衣机的烘干风道内设置向冷凝装置喷水的喷头，以清除冷凝装置的换热管路或换热片上粘附的线屑等污物，保证冷凝装置的换热效率，抑制冷凝管路与冷凝装置上的细菌滋生，达到节能降耗、健康的目的。同时本发明的洗干衣机利用热管技术 用于冷凝烘干风道内的热空气，具有能耗低，结构紧凑，烘干效果好，实用性强的特点。
附图说明
图1：本发明的示意性结构图；
图2：本发明去掉机壳后的结构示意图；
图3：为图2去掉烘干风道部分管壁后的结构示意图；
图4：本发明的冷凝装置的结构示意图；
图5：本发明的冷凝装置在烘干风道内的位置示意图；
图6：本发明的喷头结构示意图；
其中：1、机壳 2、门体 3、衣物容纳筒 4、烘干风道 5、冷凝装置 6、喷头 7、驱动装置 8、加热装置 9、风机 10、热管组 11、第一换热片组 12、第二换热片组 13、散热风机 14、排水口 41、送风口 42、回风口 61、进水口 62、出水口 63、导向结构
具体实施方式
下面结合附图对本发明的具体实施方式作进一步详细的描述。
如图1所示，一种高效洗干衣机，包括机壳1，其具有用于向其内的投放衣物和从其内将衣物取出的衣物取放孔。衣物取放孔处设置有连接到机壳1上的门体2，以选择性地打开和/或关闭衣物取放孔。
如图2和图3所示，所述高效洗干衣机还包括，设置在壳体1内的衣物容纳筒3、驱动装置7、烘干风道4和置在烘干风道4内的加热装置8。所述烘干风道4设置在衣物容纳筒3外并与其连通，所述衣物容纳筒3可包括外筒和用于盛装待干燥衣物的内筒(图中未示出)。驱动装置7安装在衣物容纳筒3封闭的一端，用于可控地驱动内筒旋转，以使内筒可转动地设置于外筒内。具体地，驱动装置7可以为一驱动电机。所述烘干风道4用于在干衣过程中向衣物容纳筒3内吹送烘干气流，以干燥衣物容纳筒3内的衣物。
特别的，所述高效洗干衣机还包括，冷凝装置5，所述冷凝装置5具有吸热部和放热部，所述吸热部设置于烘干风道4内，以吸收烘干风道4内的空气中的热量并对其进 行冷凝，所述放热部设置于烘干风道4外，以散发来自所述吸热部的热量。
所述烘干风道4内至少设置有一向所述冷凝装置5吸热部喷水的喷头6和连通至烘干风道4外的排水口14。从衣物容纳筒3内流出的空气由于携带有大量的水蒸汽，冷凝装置5吸收该空气中的热量后，空气中携带的水蒸汽被冷凝成液态水，从而使冷凝后的空气变得相对比较干燥，以再次进入衣物容纳筒3内对衣物进行干燥。
如图4所示，所述冷凝装置5包括具有蒸发段和冷凝段的热管组10、设置于所述热管组10蒸发段的第一换热片组11和设置于所述热管组10冷凝段的第二换热片组12；具体的，所述第一换热片组11和第二换热片组12可分别由平行组装的多片换热片构成，所述多片换热片的对应位置处开设有通孔。所述热管组10由多根并排的热管组成，并具有共同的蒸发段和冷凝段，所述蒸发段穿过第一换热片组11的通孔，并与换热片固定装配在一起，同理，所述冷凝段穿过第二换热片组12的通孔，并与换热片固定装配在一起。所述蒸发段和所述第一换热片组11形成所述冷凝装置5的所述吸热部，所述冷凝段和所述第二换热片组12形成所述冷凝装置5的所述放热部。
具体地，所述热管组10的蒸发段和所述第一换热片组11位于所述烘干风道4内，以吸收烘干风道4内的空气中的热量并对其进行冷凝，所述热管组10的冷凝段和所述第二换热片组12位于所述烘干风道4外，以散发来自所述热管组10的蒸发段和所述第一换热片组11的热量。换热片能够增大热管组10与空气的接触面积，快速传热，提高换热效率。
所述热管是一种传热装置，它充分利用热传导原理与相变介质的快速热传递性质，透过热管将发热物体的热量迅速传递到热源外，其导热能力超过任何已知金属的导热能力。热管根据其工作特点，可分为蒸发段、绝热段和冷凝段三个区段。当热管的蒸发段被加热时，工作液受热而蒸发，蒸汽在压差的作用下沿蒸汽腔流向热管的冷凝段，蒸汽在冷凝段凝结放出潜热，热量通过冷凝段浸满工作液的吸液芯和管壁传出，完成热量从高温向低温的传递，凝结液在吸液芯毛细抽吸力的作用下流回蒸发段。如此反复循环，就能不断的把热量从高温向低温传递。本发明实施例中采用热管形式的冷凝装置5，能够将来自衣物容纳筒3内的湿热空气中的热量快速散发，具有较高的冷凝效率和耗能低的优点。
进一步地，热管的管体材料可以为铜、铜合金、铝、铝合金、不锈钢或其他材料，以保证换冷凝装置5的热传导效率。
结合图5所示，优选地，所述第一换热片组11的换热片竖直的均布于烘干风道4内，所述喷头6设置在第一换热片组11的上方，且其出水口62的出水方向设置为平行于换热片的延伸方向，其进水口61设置在烘干风道4外部以连接洗干衣机的供水管，在供水管上设有供水阀，供水阀可受控的控制供水管的通断。由于喷头6设置在换热片的上方，因此从喷头6喷出的水自上而下的冲刷换热片，使得在重力和水流冲击力的双重作用下，残存在换热片上的线屑和污物更容易的被冲洗掉，并最终通过烘干风道4底部的排水口14排出。
优选地，所述喷头6的数量为两个或多个，以使其喷水面积能够完全覆盖换热片的表面。
如图6所示，优选地，所述喷头6在出水口62处设有导向结构63，该导向结构63使得从喷头6喷出的水流以辐射状作用至换热片的表面，以使得冲洗水的作用面积能够充分覆盖换热片的表面，达到较好的冲洗效果。
在本发明的实施例中，所述烘干风道4具有送风口41和回风口42，所述送风口41可位于外筒前面的侧上部，烘干风道4的回风口42可位于外筒后面的侧下部，外筒前面的侧上部和外筒后面的侧下部对角相对。也就是说，送风口41和回风口42可大致位于外筒经由其中心轴线的轴切面的对角线的两个拐角位置。由此，由送风口41进入衣物容纳筒3的热空气可尽可能地在衣物容纳筒3内流经最长的路径，以增加热空气与衣物容纳筒3内的待干燥衣物的接触时间，从而提高干衣效果、缩短干衣时间。具体地，送风口41可位于外筒筒颈的侧上部，回风口42可位于外筒筒底的侧下部、且靠近外筒筒底的边缘。在本发明其他的实施方式中，为了方便烘干风道4及机壳1内的其他结构的安装，送风口41和回风口42还可以位于外筒的对角相对的其他位置。
所述冷凝装置5还包括散热风机13，其设置于热管组10的冷凝段和第二换热片组12，以促进热管组10的冷凝段和第二换热片组12的热量散发。散热风机13可以为轴流风机，其吹送方向可与第二换热片组12中的换热片延伸方向相同。具体地，热管组10的冷凝段和第二换热片组12可设置在位于烘干风道4外部、且位于机壳1内部的环境空间中，该环境空间中的空气温度相对较低，从而可保证热量能够有效地散失掉，进一步提高冷凝装置5的冷凝效率。
为了使空气在衣物容纳筒3和烘干风道4之间快速有效地循环流通，在本发明的实施例中，所述洗干衣机还包括风机9。风机9设置于烘干风道4中，并位于冷凝装置5 的下游。风机9用于驱动烘干气流在烘干风道4和衣物容纳筒3之间循环流通，以加快干衣进程。
在本发明的实施例中，为了使烘干气流更加有效地蒸发衣物中的水分，所述洗干衣机还包括加热装置8。加热装置8设置于烘干风道4中，并位于冷凝装置5的下游，且配置成对流经其的空气进行加热，以使该空气形成温度高于环境温度的热空气。也就是说，加热装置8可提高进入衣物容纳筒3内的烘干气流的温度。加热装置8在烘干风道4内位于冷凝装置5的下游，即先由冷凝装置5对来自衣物容纳筒3的气流进行冷凝，再由加热装置8对冷凝后的气流进行加热，避免来自衣物容纳筒3的气流中的水分在加热过程中再次蒸发进入衣物容纳筒3影响干衣效果。
进一步地，加热装置8可受控地对流经其的空气进行间断性的加热。例如当送入衣物容纳筒3内的烘干气流的温度高于第一预设温度时，可停止加热装置8，以避免烘干气流温度过高对衣物造成伤害。当送入衣物容纳筒3内的烘干气流的温度低于第二预设温度时，可开启加热装置8，以继续对流经其的空气进行加热操作。在本发明的实施例中，第一预设温度例如可以为130℃，第二预设温度例如可以为90℃。
在本发明的实施例中，烘干风道4可包括设置有冷凝装置5的上游区段40a、设置有风机9和加热装置8的下游区段40c和位于上游区段40a和下游区段40c之间的中间区段40b。上游区段40a直接与回风口42连通，下游区段40c直接与送风口41连通。下游区段40c平行于衣物容纳筒3的中心轴线方向延伸，至少部分中间区段40b垂直于下游区段40c。由此，可避免烘干风道4内具有较大角度的转弯，便于烘干气流在烘干风道4内快速流动。
具体地，烘干风道4的下游区段40c可位于衣物容纳筒3的侧上方、且大致沿水平方向延伸。风机9位于下游区段40c邻近中间区段40b的前端，加热装置8位于风机9的下游。烘干风道4的下游区段40c可大致呈扁平的管状，加热装置8可以为固定在下游区段40c内的S形管状加热器。烘干风道4的中间区段40b和下游区段40c可组成大致呈L形的风道，至少部分中间区段40b可垂直于下游区段40c向下延伸，上游区段40a可垂直于衣物容纳筒3的中心轴线在水平面内延伸。
本发明的高效洗干衣机控制方法的实施例一
该控制方法包括，至少在干衣程序后向所述喷头6供水以冲洗附着在冷凝装置5上的污物，并通过所述排水口14将冲洗水与污物排出烘干风道4，具体地，在干衣程序结 束后，风机9停止运行并开始机内空气冷却时启动清洗程序，该清洗程序为：供水阀以间断的方式工作，使得清洗过程为断续清洗，即先冲洗5-15秒，停止5-15秒；再冲洗5-15秒，停止5-15秒；如此断续冲洗几次后，再以较大水压和水量连续冲洗20-30秒。这样设置的优点是先通过断续冲洗浸润线屑并溶解粘附的污物，然后再通过连续水流施加外力冲洗线屑和污物，可以保证最优的清洗效果。
本发明的高效洗干衣机控制方法的实施例二
该控制方法包括，至少在干衣程序后向所述喷头6供水以冲洗附着在冷凝装置5上的污物，并通过所述排水口14将冲洗水与污物排出烘干风道4，具体地，干衣程序结束后，风机9停止运行并开始机内空气冷却时启动清洗程序，该清洗程序为：清洗水在机内经加热装置预加热后通过供水管供给至喷头6，并通过喷头6的出水口62冲洗到热管组和换热片上。这样设置的优点是经加热后的温热水流可以快速溶解粘附污物，进而把污物和线屑快速冲洗掉，从而保证最佳清洗效果。冲洗水量一般为2-4升，这样只需低功率加热装置加热较短的时间即可满足清洗需求，实现低能耗的效果。
本发明的高效洗干衣机控制方法的实施例三
该控制方法包括，在烘干程序的前期向所述喷头6供水，并分配至所述冷凝装置5上，以对从所述衣物容纳筒3排出的空气进行冷凝，通过向冷凝装置5喷水实现协助冷凝的作用。具体地，在烘干程序的前期，供水阀打开以向所述喷头6供水，并喷洒少量冷水至上游区段40a，用于冷凝水蒸汽。由于从外筒排出的湿热空气需要经过一段时间才能达到较高的温度，在这段时间里，由于湿热空气与外部环境的温度差较小，热管组10无法充分冷凝水蒸汽，因此，向上游区段40a喷洒少量的冷水可以有效提高冷凝效果。
本发明的高效洗干衣机控制方法的实施例四
该控制方法包括，在烘干程序的后期向所述喷头6供水，并分配至所述冷凝装置5上，以对从所述衣物容纳筒3排出的空气进行降温，通过向冷凝装置5喷水实现协助降温的作用。具体地，在烘干程序的后期，即衣物烘干后，先将加热装置8关闭，风机9继续运行，同时供水阀打开以向所述喷头6供水，并喷洒少量冷水至上游区段40a，用于降低外筒和烘干风道内的温度。由于衣物烘干后，从外筒排出的空气依然具有较高的温度，需要经过一段时间才能冷却，在这段时间里，一般不适合直接将外筒打开，因此，向上游区段40a喷洒少量的冷水，并通过风机9的循环，可以快速降低衣物容纳筒3内的温度。
本领域技术人员应理解，以上高效洗干衣机控制方法的实施例一与实施例二，或实施例一与实施例三、实施例四，或实施例三与实施例四可以相互结合，已达到更好的使用效果。
本领域技术人员还应理解，本发明的以上实施例中所称的“上游”和“下游”均是在空气的流动方向上而言的。
以上所述为本发明的实施方式，应当指出，对于本领域的普通技术人员而言，在不脱离本发明原理前提下，还可以做出多种变形和改进，这也应该视为本发明的保护范围。

Claims (11)

  1. 一种高效洗干衣机，包括衣物容纳筒和设置在衣物容纳筒外并与其连通的烘干风道，其特征在于，还包括：
    冷凝装置，所述冷凝装置具有吸热部和放热部，所述吸热部设置于烘干风道内，以吸收烘干风道内的空气中的热量并对其进行冷凝，所述放热部设置于烘干风道外，以散发来自所述吸热部的热量；
    所述烘干风道内至少设置有一向所述冷凝装置吸热部喷水的喷头和连通至烘干风道外的排水口。
  2. 根据权利要求1所述的一种高效洗干衣机，其特征在于：所述冷凝装置包括具有蒸发段和冷凝段的热管组，设置于所述热管组的蒸发段的第一换热片组和设置于所述热管组的冷凝段的第二换热片组；
    所述蒸发段和所述第一换热片组形成所述冷凝装置的所述吸热部，所述冷凝段和所述第二换热片组形成所述冷凝装置的所述放热部。
  3. 根据权利要求2所述的一种高效洗干衣机，其特征在于：所述第一换热片组的换热片竖直的均布于烘干风道内，所述喷头设置在第一换热片组的上方，且其出水口的出水方向设置为平行于换热片的方向，其进水口设置在烘干风道外部以连接洗干衣机的供水管。
  4. 根据权利要求3所述的一种高效洗干衣机，其特征在于：所述喷头在出水口处设有导向结构，以使喷出的水充分覆盖换热片。
  5. 根据权利要求2所述的一种高效洗干衣机，其特征在于：所述烘干风道具有送风口和回风口，所述送风口与回风口设置在衣物容纳筒的对角位置，所述热管组的蒸发段和所述第一换热片组设置于所述烘干风道的邻近所述回风口的区段内。
  6. 根据权利要求2所述的一种高效洗干衣机，其特征在于：所述冷凝装置还包括：散热风机，设置于所述热管组的冷凝段和所述第二换热片组，以促进所述热管组的冷凝段和所述第二换热片组的热量散发。
  7. 根据权利要求1所述的一种高效洗干衣机，其特征在于：还包括设置在烘干风道内的加热装置，所述加热装置设置在冷凝装置的下游，在所述烘干风道内还设有驱动 烘干气流在烘干风道和衣物容纳筒之间循环流通的风机。
  8. 一种权利要求1-7任一项所述的高效洗干衣机的控制方法，其特征在于，包括，至少在干衣程序后向所述喷头供水以冲洗附着在冷凝装置上的污物，并通过所述排水口将冲洗水与污物排出烘干风道。
  9. 根据权利要求8所述的高效洗干衣机的控制方法，其特征在于：还包括，在向所述喷头供水之前，先将供给喷头的冲洗水进行加热和/或以间断的方式向所述喷头供水。
  10. 一种权利要求1-7任一项所述的高效洗干衣机的控制方法，其特征在于，包括，在烘干程序的前期向所述喷头供水，并分配至所述冷凝装置上，以对从所述衣物容纳筒排出的空气进行冷凝。
  11. 一种权利要求1-7任一项所述的高效洗干衣机的控制方法，其特征在于，包括，在烘干程序的后期向所述喷头供水，并分配至所述冷凝装置上，以对从所述衣物容纳筒排出的空气进行降温。
PCT/CN2016/105078 2015-12-15 2016-11-08 一种高效洗干衣机及控制方法 WO2017101616A1 (zh)

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