CN1721616A - Steam generation apparatus for washing machine - Google Patents

Steam generation apparatus for washing machine Download PDF

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Publication number
CN1721616A
CN1721616A CNA2005100836264A CN200510083626A CN1721616A CN 1721616 A CN1721616 A CN 1721616A CN A2005100836264 A CNA2005100836264 A CN A2005100836264A CN 200510083626 A CN200510083626 A CN 200510083626A CN 1721616 A CN1721616 A CN 1721616A
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CN
China
Prior art keywords
heater
housing
overheated
temperature
steam generation
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.)
Granted
Application number
CNA2005100836264A
Other languages
Chinese (zh)
Other versions
CN1721616B (en
Inventor
金镇雄
禹景喆
全时汶
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Electronics Inc
Original Assignee
LG Electronics Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from KR1020050016971A external-priority patent/KR100739544B1/en
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Publication of CN1721616A publication Critical patent/CN1721616A/en
Application granted granted Critical
Publication of CN1721616B publication Critical patent/CN1721616B/en
Active legal-status Critical Current
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    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/40Steam generating arrangements
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/42Safety arrangements, e.g. for stopping rotation of the receptacle upon opening of the casing door
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/04Heating arrangements
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08Liquid supply or discharge arrangements
    • D06F39/087Water level measuring or regulating devices
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/18Washing liquid level
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/52Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers related to electric heating means, e.g. temperature or voltage
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/10Temperature of washing liquids; Heating means therefor

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

Abstract

A steam generation apparatus for a washing machine includes: a case having an accommodating space for storing water; a heater disposed inside the case to heat the water stored in the case; and a heater overheating prevention unit for cutting off power of the heater when the heater is overheated above the set temperature, so that a fire and deflection of a case can be prevented by preventing overheating of the heater by cutting off power being supplied to the heater when the heater is overheated due to malfunctions of a water level sensor or a clogged spray nozzle or a clogged flow passage.

Description

The steam generation device of washing machine
Technical field
The present invention relates to washing machine, specifically relate to the steam generation device of washing machine, this device is by spraying the Steam Heating clothing in clothing.
Background technology
Fig. 1 is the viewgraph of cross-section according to the washing machine of prior art.
Comprise according to the conventional art tumbling-box washing machine: shell 1, it forms the outward appearance of washing machine and has openable door 4 at its front surface; Bucket 2 is arranged on and is used to deposit washings in the shell; Cylinder 3 is arranged on to optional commentaries on classics bucket and is used for washing in 2 and dries clothing; Drive motors 7 is connected on the cylinder 3 by driving shaft 10, is used for swing roller.
Damper 6 and support spring 5 also are installed, are used at shell 1 buffering and barrel support 2.The heater 9 that is used for heating the washings that leave bucket 2 in is installed in below the bucket 2.
Here, must guarantee enough heater installing spaces 8 below the bucket 2, heater can be installed in wherein like this, and the water level in barrels 2 must maintain to a certain degree, and heater could fully be immersed under the washings like this.
The operation of conventional washer will be described below.When washing machine started, washings were fed in the bucket 2.When bucket 2 middle water levels arrival designated water level, heater 9 starts with heated scrub water.Then, in heater 9 heated scrub water, drive motors 7 carries out front/rear rotation so that carry out washing operation.Then, when the temperature of washings reaches design temperature, heater 9 cuts out.
But in conventional washer, owing to must guarantee a spatial accommodation below the bucket 2 so that the heater 9 of heater is installed, the size of whole washing machine increases.In addition, owing to also must in the space that holds heater 9, fill washings, so the washings serious waste.
In addition, because therefore washings have increased energy resource consumption by heater 9 heating,, therefore increased the use amount of washing powder, and wash time prolongs because washing powder remains in the heater installing space 8.
Summary of the invention
Therefore, the object of the present invention is to provide a kind of steam generation device that is used for washing machine, it can reduce the overall dimension of washing machine and reduce the washing water yield, and can spray steam and heats laundry by the inside bucket of steam generation device is provided to washing machine, and minimises power consumption and minimizing wash time.
Another object of the present invention is to provide a kind of washing machine steam generation device, it can prevent that housing from catching fire and be out of shape by preventing overheated heater, and this can occur when overheated heater.
For realizing these and other advantage, and according to purpose of the present invention, as implementing herein and broadly described, provide a kind of steam generation device of washing machine, comprising: housing with the spatial accommodation that is used to deposit water; Heater is arranged in the housing, is used to heat the water that leaves in the housing; And the overheated heater protected location, be used for when the heater superheated surpasses design temperature, cutting off the power supply of heater.
This wherein this overheated heater protected location comprise: temperature sensor, be installed in the housing, be used to detect the temperature of heater; And controller, be used for when by receiving the power supply of signal detection that temperature sensor provides cut-out heater when the temperature of heater is higher than design temperature.
This overheated heater protected location comprises the thermo-fuse that is installed in the heater.
This overheated heater protected location comprises thermostat.
This overheated heater protected location comprises power switching unit, and it is installed in heater one end, and cuts off the power supply that is fed to heater when overheated heater.
The other end at heater is equipped with temperature sensor, and this other end is relative with an end of the power switching unit that heater wherein is installed.
This heater is obliquely installed, so the end that power switching unit is installed on wherein is positioned at the position higher than the other end.
Reflector element is installed in housing, is used to reflect the radiant heat that heater produces, and prevents the thermal deformation of housing, this reflector element comprises reflector, and it is connected in the housing, and the radiant heat of reflection heater generation.
Aforementioned and other purpose of the present invention, feature, aspect and advantage can become more obvious from following joint accompanying drawing detailed description of the present invention.
Description of drawings
Accompanying drawing is included and is provided further understanding of the present invention and constitute the part of explanation, and accompanying drawing shows embodiments of the invention, and has explained principle of the present invention with explanation.
In the accompanying drawing:
Fig. 1 is the viewgraph of cross-section according to the roller washing machine of conventional art;
Fig. 2 is when the perspective view that has when opening according to the front side of the washing machine of steam generation device of the present invention;
Fig. 3 is the part excision perspective view according to the steam generation device of first embodiment of the invention;
Fig. 4 is the viewgraph of cross-section according to the steam generation device of first embodiment of the invention;
Fig. 5 is the viewgraph of cross-section according to the overheated heater protected location of second embodiment of the invention;
Fig. 6 is according to third embodiment of the invention, wherein has a viewgraph of cross-section of the steam generation device of overheated heater protected location;
Fig. 7 is the perspective view according to the steam generation device of fourth embodiment of the invention;
Fig. 8 is the upward view according to the steam generation device of fourth embodiment of the invention;
Fig. 9 is the viewgraph of cross-section according to the steam generation device of fourth embodiment of the invention;
Figure 10 is the viewgraph of cross-section that has the steam generation device of overheated heater protected location according to fifth embodiment of the invention;
Figure 11 is the viewgraph of cross-section that has the steam generation device of overheated heater protected location according to sixth embodiment of the invention; And
Figure 12 is the viewgraph of cross-section that has the steam generation device of overheated heater protected location according to seventh embodiment of the invention.
The specific embodiment
Below will be in detail with reference to the preferred embodiment of washing machine according to the present invention, its example is shown in the drawings.
Fig. 2 is the perspective view when opening according to the front side of the washing machine of first embodiment of the invention.
Washing machine according to first embodiment of the invention comprises: the shell 20 that forms its outward appearance; Bucket 26, it is cushioned and supports in shell 20 by damper 22 and support spring 24, and is used to deposit washings; Cylinder 28 is arranged on to optional commentaries on classics in the bucket 26, is used for washing and dries clothing; Steam generation device 30 is arranged on shell 20 tops and is used to produce steam; Circulating pump 32 is arranged on below the bucket 26, is used for aspirating from the water of bucket 26 discharges and with the water that aspirates being fed to bucket 26 again; And nozzle 34, be used for and will be sprayed onto cylinder 28 from the steam of steam generation device 30 generations or the water that circulates by circulating pump 32.
Washing powder box 36 is installed in bucket 26 tops, and the required water of washing clothes is fed in the bucket 26 with washing powder.
Steam generation device 30 is connected to water supply line 38, and water is fed to wherein from the outside, and steam generation device 30 is connected to nozzle 34 by steam supply pipeline 40.Herein, the feed water valve (not shown) that is used to open and close water supply line 38 is installed in a side of water supply line 38, so that water is fed to the supply of steam generation device 30 or block water.
Circulating pump 32 is connected to drainpipe 42, is used for discharging the water that leaves bucket 26 in, and is connected to nozzle 34 by pipeloop 44.Circulating pump 32 aspirates the water of discharging from drainpipe 42, and by pipeloop 44 water of discharging is fed to nozzle 34.The water that is fed to nozzle 34 is sprayed onto in the cylinder 28.
Fig. 3 is the part excision perspective view according to the steam generation device of first embodiment of the invention, and Fig. 4 is the viewgraph of cross-section according to the steam generation device of first embodiment of the invention.
This steam generation device 30 comprises: housing 50, and it has the spatial accommodation that is used to deposit water; Heater 52 is installed in the housing, so that the water in the housing 50 is left in heating in; Level sensor 54 is arranged on the water level that is used for detecting the water that is fed to housing 50 in the housing 50; And the overheated heater protected location, be used to detect the temperature of heater 52 and when heater 52 superheated are above to design temperature, cut off its power supply.
The water supply pipe 56 that is connected to water supply line 38 and is supplied water is installed in a side of housing 50 upper surfaces.The gland steam exhauster 58 that is connected to steam supply pipeline 40 is installed on another of housing 50 upper surfaces, so that the steam that produces in the housing 50 is discharged.
Heater 52 is arranged on the bottom of housing 50, apart from the housing bottom surface certain intervals is arranged.One end of heater 52 is exposed to the outside so that connect power supply.In addition, heater 52 is supported by the heater support unit 60 that is arranged on housing 50 bottom surfaces.
Level sensor 54 is fixed on the upper surface of housing 50 and is vertically set on the inboard of housing 50, and it is used to control the water level that flows in the housing 50, and control heater protection water level is overheated to prevent heater 52.
When level sensor 54 breaks down, perhaps make when not having water to deposit in the housing owing to nozzle or flow channel are blocked, perhaps the decline of water table in the housing is to the heater protecting water level when following, and heater 52 can Fire Overheat or housing 50 is out of shape.For preventing these, the overheated heater protected location is installed.
The overheated heater protected location comprises: temperature sensor 62, and it is installed in the housing 50, is used to detect the temperature of heater 52; With controller 64, it is used for cutting off the power supply of heater 52 when the temperature that detects heater 52 is higher than design temperature.
Temperature sensor 62 comprises thermistor, and it is fixed to the upper surface of housing 50 and is vertically set in the housing 50, so that detect the temperature of heater 52.
Operation according to washing machine steam generation device of the present invention will be described below.
At first, be contained in clothing in the cylinder 28 after, when the user presses the steaming action button, water through washing powder box 20 with washing powder be fed to the bucket 26 in.When opening water supply line 38 by startup feed water valve (not shown), water supplies in the housing 50 by water supply pipe 56.When the water in supplying to housing 50 arrived suitable water level, by the signal that level sensor 54 provides, power supply supplied to heater 52, thereby heating is left the water in the housing 50 in and produced steam.
Then, when the steam that produces in housing 50 supplied to nozzle 34 by gland steam exhauster 58 discharges and by steam supply pipeline 40, steam was sprayed directly on the clothing of depositing in the cylinder 28 from nozzle 34.
Then, when the temperature in the bucket 26 arrives design temperature, stop from the water supply of housing 50, and be fed to the power supply of heater 52 and stop the operation of steam generation device 50 simultaneously by cut-out by closing feed water valve.
In the process of steam raising plant 30 operations; when because the fault of level sensor 54 when not having accurately to measure water level in the housing 50; the decline of water table of the water in leaving housing 50 in is to the heater protecting water level when following, and heater 52 is exposed in the air and is overheated rapidly.At this moment, when temperature sensor 62 detects the temperature of heater 52 and the temperature that detects is provided to controller 64, when according to the signal that provides from temperature sensor 62, the excessive temperature that detects heater 52 is heated to design temperature when above, controller 64 cuts off and is fed to the power supply of heater 52, thereby prevents that heater 52 is overheated.
In addition, raise when causing temperature to raise when block the pressure that makes in the housing 50 owing to nozzle 34 or flow channel, when temperature sensor 62 detected this temperature and is provided to controller 64, this controller 64 cut off and is fed to the power supply of heater 52, thereby prevents to destroy steam generation device 30.
Fig. 5 is the viewgraph of cross-section according to the overheated heater protected location of second embodiment of the invention.
Overheated heater protected location according to second embodiment of the invention comprises thermo-fuse 70, and it is installed on the heater 52, cuts off the power supply that is fed to heater 52 when surpassing design temperature with convenient heater 52 superheated.
Thermo-fuse 70 is installed in a side of heater 52.When heater 52 superheated surpassed design temperature, thermo-fuse disconnected, thereby cut off the power supply that is fed to heater 52.
Fig. 6 is according to third embodiment of the invention, wherein has a viewgraph of cross-section of the steam generation device of overheated heater protected location.
Overheated heater protected location according to the 3rd embodiment comprises thermostat, and it is installed in the bottom surface of housing and contacts with heater, is elevated to design temperature with the temperature of convenient heater and cuts off the power supply that is fed to heater when above.
Thermostat 72 contacts with heater, cuts off the power supply that is fed to heater when above to design temperature with convenient heater superheated and prevents to make overheated heater, and heater is switched on.
Fig. 7 is the perspective view according to the steam generation device of fourth embodiment of the invention.Fig. 8 is the upward view according to the steam generation device of fourth embodiment of the invention.
Steam generation device according to fourth embodiment of the invention comprises: housing 50 has the spatial accommodation of depositing water; Heater 52 is installed in and also heats the water that leaves in the housing 50 in the housing 50; Level sensor 54 is arranged in the housing 50, and detects the water level that supplies to the water in the housing 50; The overheated heater protected location detects the temperature of heater 52, and cuts off the power supply of heater 52 when heater 52 superheated are above to design temperature; And reflector element, being arranged in the housing 50, its reflects the radiant heat that produces from heater 52, thereby prevents the thermal deformation of housing 50.
Since housing 50, heater 52 and level sensor 54 with in first embodiment, describe the same, so the omission description of them.
Reflector element comprises solid metal reflector 74, and it is connected to the upper surface of housing 50 inboards, is used to reflect the heat that heater 52 produces.Herein, reflector 74 can be connected to side and the bottom and the upper surface thereof of housing 50.
Reflector element can comprise the reflecting glass with metal deposit.In addition, reflector element can be constructed as follows, replaces reflector 74, and housing 50 inside scribble coating so that the radiant heat that reflection heater 52 produces.
This coating is formed by the high reflecting metal material, and upper surface, side and the bottom surface of preferred housing all scribble coating.
The overheated heater protected location prevents that heater 52 is overheated, and when being installed in heater 52 inclinations in the steam generation device 30 when tilt washer, an end of heater 52 is exposed in the air.That is, although steam generation device 30 has a down dip towards the one side direction, the level sensor 54 that is installed in housing 50 centers judges that still the water level that leaves the water in the housing 50 in is normal, therefore proceeds steam and produces operation.Then, before level sensor 54 detects water supply point, thereby an end of heater 52 is exposed to and causes in the air that heater 52 is overheated.Therefore, should be such unit as the overheated heater protected location, even it can prevent that also heater 52 is overheated when steam generating unit 30 tilts.
As shown in Figure 9; in overheated heater protected location according to fourth embodiment of the invention; inside at heater 52 1 ends (82a) is equipped with power switching unit 76, is used for cutting off when heater 52 superheated are above to design temperature the power supply of heater 52.In addition, temperature sensor 78 is installed in the position near heater 52 other end 82b, this end is relative with a described end 82a of the power switching unit 76 that heater 52 is installed, and therefore, temperature sensor 78 detects the temperature of heater 52 and provides signal to controller 80.
Employing is installed in the thermo-fuse of an end in the heater 52 as power switching unit 76.When heater 52 was overheated, thermo-fuse disconnected, thereby sever supply is to the power supply of heater 52.In addition, can adopt thermostat with an end in contact of heater 52 as power switching unit 76, thereby when the heater superheated is above to design temperature, cut off the power supply of heater and drop to the power supply that design temperature is connected heater 52 when following at heater 52.
Temperature sensor 78 comprises thermistor, and it is fixed to the upper surface of housing 50, is provided with near heater 52 other end 82b, and is electrically connected to controller 80, so that detect the temperature of heater 52 other end 82b, and the temperature that detects is provided to controller 80.
In overheated heater protected location according to the 4th embodiment, when washing machine when the one side direction has a down dip, steam generation device 30 is downward-sloping towards the left side of figure, the other end 82b of heater 52 is exposed in the air, thereby causes that heater 52 is overheated.At this moment, when temperature sensor 78 detected the temperature of heater 52 and the temperature that detects is provided to controller 80, controller 80 sever supplies were to the power supply of heater 52, thereby prevented that heater 52 is overheated.
In contrast, when the right side of steam generation device in figure was downward-sloping, an end 82a of heater was exposed to and causes overheated heater in the air.At this moment, power switching unit 76 operations are fed to the power supply of heater and prevent that heater 52 is overheated with cut-out.
Figure 10 is the viewgraph of cross-section that has the steam generation device of overheated heater protected location according to fifth embodiment of the invention.
In according to the anti-stop element of the overheated heater of the 5th embodiment, power switching unit 84 at one end is installed in the 82a, sever supply is to the power supply of heater 52 when surpassing design temperature with convenient heater 52 superheated.This heater 52 is installed like this, and the end 82a that power switching unit 84 wherein is installed is positioned at the position higher than other end 82b.
Therefore the structure that the structure of power switching unit 84 is identical with the power switching unit of describing in the 4th embodiment omits the description to it.
That is, can prevent owing to following reason is exposed in the air that when steam generation device 30 when the left side is downward-sloping in figure, thereby because other end 82b is downward-sloping is positioned at below the heater protecting water level according to the overtemperature protection unit of the 5th embodiment.The anti-stop element of this overheated heater prevents that in the following manner heater 52 is overheated, when steam generation device 30 when the right side is downward-sloping in figure, one end 82a of heater 52 is exposed to air, thereby power switching unit 84 operation sever supplies this moment are to the power supply of heater 52.
Figure 11 is the viewgraph of cross-section that has the steam generation device of overheated heater protected location according to sixth embodiment of the invention.
In overheated heater protected location according to the 6th embodiment; in an end of heater 52, power switching unit 84 is installed; be used for cutting off when heater 52 superheated surpass design temperature the power supply of heater, steam generation device 30 tilts, and its right part is lower in the drawings.
In overheated heater protected location, dip down and tiltedly be provided with because the other end 82b of heater 52 is positioned at the right lateral surface of steam generation device 30 wherein, so the other end 82b of heater 52 is lower than the heater protecting water level according to the 6th embodiment.Therefore, even downward-sloping towards the left side when steam generation device 30, the overheated heater protected location can prevent that also other end 82b is exposed in the air.In addition, when steam generating unit 30 was downward-sloping towards the right side, an end 82a of heater 52 was exposed in the air.At this moment, power switching unit 84 operations prevent that heater 52 is overheated so that cut off the power supply that is fed to heater 52.
Figure 12 is the viewgraph of cross-section that has the steam generation device of overheated heater protected location according to seventh embodiment of the invention.
In overheated heater protected location according to the 7th embodiment; in an end 82a of heater 52, power switching unit 90 is installed; be used for when heater 52 superheated surpass design temperature, cutting off the power supply of heater 52; form rake 92 on the bottom surface of the housing 50 of steam generation device 30; it is to tilt like this, and promptly its right side is lower in the drawings.
In overheated heater protected location, form because other end 82b is positioned at the right part of steam generation device 30 wherein, so the other end 82b of heater 52 is positioned at below the heater protecting water level according to the 7th embodiment downward-slopingly.Therefore, even when steam generation device 30 is downward-sloping towards the left side, the overheated heater protected location can prevent that also other end 82b is exposed in the air.In addition, when steam generation device 30 when the right side is downward-sloping in figure, an end 82a of heater 52 is exposed in the air.At this moment, power switching unit 86 operations are so that sever supply to the power supply of heater 52, prevents that heater 52 is overheated.
Washing machine steam generation device according to the present invention can reduce the overall dimensions and the water consumption of washing machine, by steam being sprayed onto interior bucket and heats laundry energy minimises power consumption and reducing wash time.
In addition; the overheated heater protected location is installed in steam generation device; so that the power supply that cuts off heater when heater makes overheated heater owing to level sensor fault or nozzle or flow channel stop up is preventing overheated heater, so the present invention can prevent to catch fire or housing distortion.
In addition, be used to reflect the photothermal reflector element that produces from heater and be installed in enclosure interior, therefore can prevent the housing distortion that causes by radiant heat.
In addition, even when tilt washer, by preventing that heater is exposed to air and also can prevents the overheated of heater.
, the present invention do not break away from its spirit or principal character because can implementing in a variety of forms, therefore should understand, the foregoing description is not limited to any detailed description of front, except as otherwise noted, and should in the spirit and scope that claims limited, be understood widely, therefore fall in the boundary of claim and the scope or all changes in the scope of the equivalents of boundary or scope and revising are all included by described claim.

Claims (20)

1. the steam generation device of washing machine comprises:
Housing with the spatial accommodation that is used to deposit water;
Heater is arranged in the housing, is used to heat the water that leaves in the housing; And
The overheated heater protected location is used for cutting off the power supply of heater when the heater superheated surpasses design temperature.
2. device according to claim 1 also comprises:
Level sensor is arranged in the housing, is used to detect the water level that supplies to the water in the housing.
3. device as claimed in claim 1, wherein this overheated heater protected location comprises:
Temperature sensor is installed in the housing, is used to detect the temperature of heater; With
Controller is used for when by receiving the power supply of signal detection that temperature sensor provides cut-out heater when the temperature of heater is higher than design temperature.
4. device as claimed in claim 3, wherein this temperature sensor comprises thermistor.
5. device as claimed in claim 4, wherein thermistor is fixed to the top of housing and is vertically set in the housing.
6. device as claimed in claim 1, wherein the overheated heater protected location comprises the thermo-fuse that is installed in the heater.
7. device as claimed in claim 1, wherein the overheated heater protected location comprises thermostat.
8. device as claimed in claim 7, wherein thermostat is installed in housing bottom and contacts with heater.
9. device as claimed in claim 1, wherein the overheated heater protected location comprises power switching unit, it is installed in heater one end, and cuts off the power supply that is fed to heater when overheated heater.
10. device as claimed in claim 9, wherein power switching unit is a thermo-fuse.
11. device as claimed in claim 9, wherein power switching unit is a thermostat.
12. device as claimed in claim 9, wherein the other end at heater is equipped with the temperature sensor that is used to detect heater other end temperature, and this other end is relative with an end of the power switching unit that heater wherein is installed.
13. device as claimed in claim 12, wherein this temperature sensor comprises thermistor, is used to detect the temperature of the heater other end, and the temperature that detects is provided to controller.
14. device as claimed in claim 9, wherein heater is obliquely installed, so the end that power switching unit is installed on wherein is positioned at the position higher than the other end.
15. device as claimed in claim 9, wherein whole steam generation device is obliquely installed, so a side of the steam generation device at other end place is lower, and wherein this other end is relative with an end of the heater that power switching unit wherein is installed.
16. device as claimed in claim 9, wherein housing bottom is formed obliquely, and a side of the housing at other end place is lower like this, and wherein this other end is relative with an end of the heater that power switching unit wherein is installed.
17. device as claimed in claim 1 also comprises:
Reflector element is installed in the housing, is used to reflect the radiant heat that heater produces, and prevents the thermal deformation of housing.
18. device as claimed in claim 17, wherein reflector element comprises reflector, and it is connected in the housing upside, and the radiant heat of reflection heater generation.
19. device as claimed in claim 18, wherein reflector is arranged in the housing upside.
20. device as claimed in claim 17, wherein reflector element comprises the highly-reflective coating that scribbles in the housing.
CN2005100836264A 2004-07-13 2005-07-13 Steam generation apparatus for washing machine Active CN1721616B (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
KR10-2004-0054518 2004-07-13
KR1020040054518 2004-07-13
KR1020040054518A KR100739155B1 (en) 2004-07-13 2004-07-13 Steam generation apparatus for washing machine
KR1020050016971 2005-02-28
KR1020050016971A KR100739544B1 (en) 2005-02-28 2005-02-28 Apparatus for Spraying Steam in Washing machine
KR10-2005-0016971 2005-02-28

Publications (2)

Publication Number Publication Date
CN1721616A true CN1721616A (en) 2006-01-18
CN1721616B CN1721616B (en) 2010-07-21

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Application Number Title Priority Date Filing Date
CN2005100836264A Active CN1721616B (en) 2004-07-13 2005-07-13 Steam generation apparatus for washing machine

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KR (1) KR100739155B1 (en)
CN (1) CN1721616B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101205679B (en) * 2006-12-15 2010-12-08 Lg电子株式会社 Washing machine
CN102471988A (en) * 2009-08-18 2012-05-23 Bsh博世和西门子家用电器有限公司 Method of operating steam generator of laundry appliance, and laundry appliance for performing method
CN102792097A (en) * 2010-03-12 2012-11-21 Lg电子株式会社 Steam generator and washing machine having the same
CN105483972A (en) * 2016-02-01 2016-04-13 珠海格力电器股份有限公司 Control device and method of steam generator, steam generator and washing machine
CN107470227A (en) * 2017-08-29 2017-12-15 浙江域桥电器有限公司 A kind of high-pressure steam-cleaning machine
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