CN102374700A - Dehumidifying-warming apparatus and clothes drier - Google Patents
Dehumidifying-warming apparatus and clothes drier Download PDFInfo
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- CN102374700A CN102374700A CN2011102251284A CN201110225128A CN102374700A CN 102374700 A CN102374700 A CN 102374700A CN 2011102251284 A CN2011102251284 A CN 2011102251284A CN 201110225128 A CN201110225128 A CN 201110225128A CN 102374700 A CN102374700 A CN 102374700A
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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
- D06F58/206—Heat pump arrangements
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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
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/50—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers related to heat pumps, e.g. pressure or flow rate
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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
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/58—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers related to condensation, e.g. condensate water level
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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
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/26—Heat pumps
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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
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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
- D06F58/32—Control of operations performed in domestic laundry dryers
- D06F58/34—Control of operations performed in domestic laundry dryers characterised by the purpose or target of the control
- D06F58/50—Responding to irregular working conditions, e.g. malfunctioning of blowers
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
- Drying Of Gases (AREA)
- Control Of Washing Machine And Dryer (AREA)
Abstract
A heat pump device connecting a compressor, a heat radiator, an expansion mechanism, and a heat absorber by using a pipe through which a refrigerant circulates, a temperature measuring unit that is disposed in a pipe connecting the heat radiator, and a wind circuit through which air of the heat pump device flows inside from an air inlet at the heat absorber and flows outside from an air outlet at the heat radiator, are included. Further, a drain pan receiving condensed water produced by heat exchange between the air in the wind circuit and air in heat absorber is further included, and the temperature measuring unit is disposed under a boundary position where water of the drain pan overflows.
Description
Technical field
The present invention relates to a kind of dehumidifying heating apparatus and the clothesdrier that has used this dehumidifying heating apparatus that has used heat pump assembly.
Background technology
In the past, the device normally put down in writing of this dehumidifying heating apparatus like japanese kokai publication hei 7-178289 communique (patent documentation 1).In recent years, based on the viewpoint of energy savings, use the dehumidifying heating apparatus to replace being used for the heater of clothesdrier.Use heat pump assembly as the dehumidifying heating apparatus.
Below, in the past dehumidifying heating apparatus is described.Fig. 7 is the figure that observes dehumidifying heating apparatus in the past from the top, and Fig. 8 is the side view of dehumidifying heating apparatus in the past, and Fig. 9 is the 9-9 sectional view of Fig. 7.
As shown in Figure 9, have heat pump assembly 57 in the casing 52 of dehumidifying heating apparatus 51, this heat pump assembly 57 possesses compressor 53, radiator 54, heat dump 55 and restriction 56.Be used to measure from the temperature survey portion 59 of the temperature of the cold-producing medium of compressor 53 ejections and be arranged at the pipe arrangement 58 that connects compressor 53 and radiator 54.The below of heat dump 55 is provided with the drip tray (drain pan) 60 that is received in the dew of dewfall in the heat dump 55.As shown in Figure 8, the dew that accumulates in the drip tray 60 is discharged from from discharge outlet 61.Level sensor 62 that kind as shown in Figure 8 that detect dew are arranged on the wall of drip tray 60.
Use Fig. 9 that flowing of cold-producing medium is described.In heat pump assembly 57, the cold-producing medium that utilizes compressor 53 to be compressed into HTHP gets into radiator 54 through pipe arrangement 58, carries out heat exchange with the air of being seen off by pressure fan (not shown).Through heat exchange, air is heated, and cold-producing medium is cooled and liquefies.The cold-producing medium that is liquefied gets into restriction 56, becomes the cold-producing medium of low-temp low-pressure through decompression, gets into heat dump 55.At this moment, cold-producing medium carries out heat exchange through heat dump 55 and the air of being seen off by pressure fan.On the other hand, the air dehumidifying that is cooled.Become vapor refrigerant after cold-producing medium is heated, and turn back to compressor 53.
Surpass under the situation of the temperature when making the lubricating oil generation deterioration in the compressor 53 in cold-producing medium ejection temperature, compressor 53 can't move normally.Thereby, when cold-producing medium ejection temperature surpasses set point of temperature, compressor 53 is shut down.
In addition, in heat dump 55, when air was cooled dehumidifying, airborne steam generation dewfall produced dew.Dew splashes in the drip tray 60 of the below that is arranged at heat dump 55.The dew that splashes into drip tray 60 is outside discharge outlet 61 is discharged to dehumidifying heating apparatus 51.Long-pending at discharge outlet 61 places have under the situation of foreign matter, and it is unusual draining to take place, and dew can accumulate in the drip tray 60.Its result, the water level of drip tray 60 rises.Be provided with level sensor 62 in the drip tray 60.Utilize level sensor 62 to detect the water level of dew, judge that draining is unusual.Thus, for example can prevent that dew from overflowing from drip tray 60.
On the other hand, the mobile of air described.Utilize pressure fan that air is delivered to dehumidifying heating apparatus 51 from air scoop 63.At first, air is cooled in heat dump 55.Under the situation of temperature smaller or equal to the saturation temperature of air of heat dump 55, airborne steam is at the surface sweating of heat dump 55.Thus, air is dehumidified.Afterwards, air carries out heat exchange with the cold-producing medium that is compressed into HTHP and is heated in radiator 54.Air after the heating becomes the air of high temperature low humidity, and is discharged from from dehumidifying heating apparatus 51 through exhaust outlet 64.
In dehumidifying heating apparatus in the past, be provided with level sensor 62 to detect the dew in the drip tray 60.Thereby, need possess the space that is used to be provided with level sensor 62.Therefore, device becomes and maximizes and complex structure.
Summary of the invention
The scheme that is used to deal with problems
The present invention utilizes simple structure to detect the water level of dew.
Dehumidifying heating apparatus of the present invention possesses: heat pump assembly, and it has compressor, radiator, restriction and heat dump; Temperature survey portion, it is arranged at the pipe arrangement that connects above-mentioned compressor and above-mentioned radiator; And drip tray, it receives in the above-mentioned heat dump dew that carries out heat exchange with air and produce, and wherein, the said temperature measurement section is arranged at the downside that overflows the boundary position of dew from above-mentioned drip tray.And in dehumidifying heating apparatus of the present invention, a part that connects the pipe arrangement of compressor and radiator extends to drip tray inside.And, in dehumidifying heating apparatus of the present invention, be provided with temperature survey portion at the inner position of drip tray that extends to of pipe arrangement.Thus, temperature survey portion measures the temperature of the cold-producing medium of heat pump assembly, and in drip tray, accumulates under the situation that dew is arranged, and also measures the temperature of dew.Can detect the water level of drip tray through the measured temperature of temperature survey portion.
Clothesdrier of the present invention possesses above-mentioned dehumidifying heating apparatus.
Description of drawings
Fig. 1 is the sectional view of the dehumidifying heating apparatus of first embodiment of the present invention.
Fig. 2 is the sketch map of the dehumidifying heating apparatus of first embodiment of the present invention.
Fig. 3 is the figure that observes the dehumidifying heating apparatus of first embodiment of the present invention from the top.
Fig. 4 is the time diagram of action of the dehumidifying heating apparatus of expression first embodiment of the present invention.
Fig. 5 is the time diagram of action of the dehumidifying heating apparatus of expression first embodiment of the present invention.
Fig. 6 is the major part sectional view of the clothesdrier that possesses the dehumidifying heating apparatus of second embodiment of the present invention.
Fig. 7 is the figure that observes dehumidifying heating apparatus in the past from the top.
Fig. 8 is the side view of dehumidifying heating apparatus in the past.
Fig. 9 is the 9-9 sectional view among Fig. 7 of dehumidifying heating apparatus in the past.
The specific embodiment
Below, with reference to accompanying drawing embodiment of the present invention is described.In addition, the present invention is not limited to this embodiment.
Fig. 1 is the sectional view of the dehumidifying heating apparatus of first embodiment of the present invention, and Fig. 2 is the sketch map of dehumidifying heating apparatus, and Fig. 3 is the figure that observes the dehumidifying heating apparatus from the top.
In Fig. 1, be provided with heat pump assembly 7 in the casing 1, this heat pump assembly 7 comprises compressor 2, radiator 3, restriction 4, heat dump 5 and connects these parts and make the pipe arrangement 6 of cold-producing medium in inner loop.Can change the rotating speed of compressor 2 through inverter (inverter) etc.
Be provided with temperature survey portion 8 among a pipe arrangement 6A part, that connect compressor 2 and radiator 3 as pipe arrangement 6.Temperature survey portion 8 measures from the temperature of the cold-producing medium of compressor 2 ejections.Utilize the temperature of the cold-producing medium that temperature survey portion 8 measures to be imported into the control device 9 of the action of control compressor 2.Temperature survey portion 8 is made up of thermistor etc.
In order to be received in the dew that produces in the heat dump 5, below heat dump 5, be provided with drip tray 10.The dew that accumulates in the drip tray 10 is discharged from from discharge outlet 11.A part that connects the pipe arrangement 6A of compressor 2 and radiator 3 extends to the inside of drip tray 10.Temperature survey portion 8 is arranged at the position that extends to drip tray 10 inside of pipe arrangement 6A.Temperature survey portion 8 both can be positioned at the bottom of drip tray 10 inside, also can be positioned at side surface part.
The mounting temperature measurement section 8 as follows: in pipe arrangement 6A, make the part of temperature survey portion 8 or all be positioned at along on the gravity direction than the boundary position that overflows dew from drip tray 10, be spilling water line W by under the position.
Then, use Fig. 2 that the elemental motion of heat pump assembly 7 is described.At first, cold-producing medium is compressed machine 2 compressions, becomes the state of HTHP.The cold-producing medium of HTHP gets into radiator 3 through the position of the temperature survey portion 8 that is equipped with of pipe arrangement 6A.In radiator 3, air and the cold-producing medium seen off by pressure fan (not shown) carry out heat exchange.Through carrying out heat exchange, air is heated, and on the other hand, cold-producing medium is cooled and liquefies.The high-pressure refrigerant that is liquefied becomes the liquid refrigerant of low-temp low-pressure after being reduced pressure by restriction 4, and gets into heat dump 5.In heat dump 5, air and the cold-producing medium seen off by pressure fan carry out heat exchange.Through carrying out heat exchange, the air dehumidifying that is cooled.On the other hand, cold-producing medium is heated and becomes vapor refrigerant.Afterwards, vapor refrigerant turns back to compressor 2.
When the cold-producing medium ejection temperature of compressor 2 surpassed set point of temperature, the lubricating oil in the compressor 2 can rapid deterioration.Measure from the temperature of the cold-producing medium of compressor 2 ejections through temperature survey portion 8, when cold-producing medium ejection temperature surpassed set point of temperature, control device 9 made compressor 2 stop action.Like this, prevent the deterioration of lubricating oil.
In heat pump cycle, be higher than condensation temperature from the ejection temperature of the cold-producing medium of compressor 2 ejection.Measure cold-producing medium ejection temperature (for example 80 ℃～100 ℃) through temperature survey portion 8.Therefore the action interlock of cold-producing medium ejection temperature and compressor 2 controls the action of compressor 2, so that cold-producing medium ejection temperature is in the scope of regulation.Under the situation that the rotating speed maintenance of compressor 2 is fixed, the amplitude of fluctuation of cold-producing medium ejection temperature is about ± 1 degree.That is, in this case amplitude of fluctuation is little.
Then, to utilizing dehumidifying heating apparatus the mobile of air of heating that dehumidify to describe.In Fig. 1, air is sent into the dehumidifying heating apparatus from the air inflow aperture 12 that is arranged at casing 1 through pressure fan (not shown).Afterwards, air gets into heat dump 5 and is cooled.When the temperature of the air in the heat dump 5 during smaller or equal to saturation temperature, airborne steam is at the surface sweating of heat dump 5.Thus, air is dehumidified.Afterwards, become the air of high temperature low humidity after the air after the dehumidifying is heated by radiator 3, and discharge from air outflow port 13.In the dehumidifying heating apparatus, so that the mode that air moves like this forms wind path 14.
The dew that in heat dump 5, produces falls in the drip tray 10.The dew that accumulates in the drip tray 10 is outside discharge outlet 11 is discharged to casing 1.At this, the fine fibre that contains clothing in the air of being seen off by pressure fan is lint (lint) etc., other tiny foreign matter.Lints etc. together flow down with dew, and accumulate in the drip tray 10.
Sometimes the discharge outlet 11 that is used for discharging the dew that accumulates in drip tray 10 is by obstructions such as lints.In this case, dew can't discharge and accumulate in the drip tray 10 from discharge outlet 11.In heat absorber 5, further produce under the situation of dew, the water level of the dew in the drip tray 10 can rise.Surpass at dew under the situation of the boundary position that overflows water from drip tray 10, dew overflows from drip tray 10.That is,, finally cause dew to overflow from drip tray 10 owing to the unusual water level abnormality that dew takes place of the draining of discharge outlet 11.In Fig. 1, the boundary position that overflows water from drip tray 10 is expressed as spilling water line W.In addition, spilling water line W is the boundary position that water overflows, and in drip tray 10, for example both can be shown as line, perhaps also can not carry out actual demonstration.
Like this, the dehumidifying heating apparatus of first embodiment of the present invention constitutes: the temperature survey portion 8 among the pipe arrangement 6A that connects compressor 2 and radiator 3 of being arranged at be positioned at along on the gravity direction than the boundary position that overflows water from drip tray 10 by under the position.
Thus, under the situation that the water level of the dew in drip tray 10 rises, temperature survey portion 8 contacts with dew.That is to say that temperature survey portion 8 just touched dew before dew surpasses spilling water line W.Generally, the temperature from the cold-producing medium of compressor 2 ejection for example is 80 ℃～100 ℃.That is, generally, the measurement temperature of temperature survey portion 8 is 80 ℃～100 ℃.On the other hand, rise and under temperature survey portion 8 and the situation that dew contacts, temperature survey portion 8 is cooled at the water level that causes dew by draining unusually.That is, the measurement temperature of temperature survey portion 8 descends.Thereby temperature survey portion 8 through measuring the variations in temperature that this cooling causes, can be detected the water level abnormality of dew by the dew cooling.That is it is unusual, can to detect draining.
That is to say that temperature survey portion 8 has the function and unusual these the two kinds of functions of function of draining that detect dew of the ejection temperature of measuring the cold-producing medium in the heat pump cycle.Have this two kinds of functions through temperature survey portion 8, need as in the past, in drip tray 10, level sensor be set.Therefore, simplification, miniaturization that can implement device.
Other example of the dehumidifying heating apparatus of first embodiment of the present invention then, is described.Control device 9 makes the state after the rotating speed of compressor 2 reduces and will reduce keep the stipulated time.Roughly there are two kinds of situation can make the state after the rotating speed of compressor 2 reduces and will reduce keep the stipulated time.
At first, explain that the state after the rotating speed that makes compressor 2 reduces and will reduce keeps first kind of situation of stipulated time.Fig. 4 is the time diagram of the action of expression dehumidifying heating apparatus.As shown in Figure 4; In other routine A1 of the dehumidifying heating apparatus of first embodiment of the present invention; When the measurement temperature of temperature survey portion 8 during smaller or equal to first set point of temperature, control device 9 makes the state after the rotating speed of compressor 2 reduces and will reduce keep the stipulated time.
Below, use Fig. 4 to come illustrative examples A1.Compressor 2 turns round with the first regulation rotating speed r1 (for example 90rps) that in than higher rotary area, sets after entry into service.Be controlled in the scope of regulation through control device 9 rotating speeds, so that cold-producing medium ejection temperature, be that the measurement temperature of temperature survey portion 8 is t1 (for example 100 ℃) compressor 2.Under the situation that the rotating speed maintenance of compressor 2 is fixed, the change of the measurement temperature of temperature survey portion 8 is about ± 1 degree.That is, the amplitude of fluctuation of temperature is little.
The reason that the measurement temperature of temperature survey portion 8 descends roughly has two.First reason is: because the change in rotational speed of compressor 2 etc. make the heat pump cycle change, cause temperature to descend thus.Because the rotating speed of compressor 2 changes, the heat pump cycle change, thus the temperature of cold-producing medium descends.The Another reason that the measurement temperature of temperature survey portion 8 descends is: because the draining first temperature survey portion 8 that causes unusually contacts with dew.
In the interval c of Fig. 4, temperature survey portion 8 measured cold-producing medium ejection temperature are reduced to t5 from t1.But, be small because this temperature descends, therefore can't judge it is that the temperature that variation caused because of heat pump cycle descends, still because of temperature survey portion 8 with accumulate in drip tray 10 in dew contact the temperature decline that is caused.
Therefore, when cold-producing medium ejection temperature dropped to the first set point of temperature t5 (for example 80 ℃), in interval d, the rotating speed that control device 9 makes compressor 2 was reduced to the second regulation rotating speed r2 and keeps the stipulated time from the first regulation rotating speed r1.Thus, the measurement temperature of temperature survey portion 8 declines to a great extent from t5.When temperature survey portion 8 touches dew, compare with the situation that the internal circulating load of cold-producing medium is a normal state, the instant heating volume flow is big, under the situation that internal circulating load is little, the instant heating volume flow is little of cold-producing medium, the measurement temperature of temperature survey portion 8 descends more easily.At this, if becoming, the measurement temperature of temperature survey portion 8 is lower than the second set point of temperature t3 (for example 60 ℃), then be judged as because of temperature survey portion 8 contacts with the dew that accumulates in drip tray 10 and cause temperature to descend.That is, be judged as temperature survey portion 8 and touched dew.At this, be that the measurement temperature of temperature survey portion 8 is and the corresponding temperature of rotating speed r2 under the situation of change of the heat pump cycle that caused by the change in rotational speed of compressor 2 etc. in the reason that the measurement temperature of temperature survey portion 8 descends.That is, when the measurement temperature of temperature survey portion 8 is lower than the corresponding temperature of rotating speed r2 with compressor 2, is judged as temperature survey portion 8 and touches dew.According to this judgement, can prevent that dew from overflowing from drip tray 10.
At this, another routine A2 of the dehumidifying heating apparatus of first embodiment of the present invention is described.In routine A2; Under the situation of measurement temperature smaller or equal to the first set point of temperature t5 of temperature survey portion 8; Control device 9 makes the state after the rotating speed of compressor 2 reduces and will reduce keep the stipulated time; Then, under the situation of measurement temperature smaller or equal to the second set point of temperature t3 lower than the first set point of temperature t5 of temperature survey portion 8, control device 9 stops the rotation compressor 2.
In Fig. 4,, compressor 2 is set at rotating speed r1 turns round for the measurement temperature that makes temperature survey portion 8 keeps t1.Compressor 2 be rotated with the first regulation rotating speed r1 during, the thermal capacity flow that circulation produced of cold-producing medium is big.At the interval c of Fig. 4, cold-producing medium ejection temperature, be that the measurement temperature of temperature survey portion 8 is reduced to t5 from set point of temperature t1.But, be small because this temperature descends, can't judge that therefore the variation because of heat pump cycle causes temperature to descend, still, temperature survey portion 8 causes temperature decline because of contacting with dew in accumulating in drip tray 10.Therefore, make the rotating speed of compressor 2 be reduced to the second regulation rotating speed r2 from the first regulation rotating speed r1.Thus, the internal circulating load of cold-producing medium reduces, and the thermal capacity flow diminishes.Under temperature survey portion 8 and situation that dew contacts; Compare with the situation that the internal circulating load of cold-producing medium is a normal state, the instant heating volume flow is big; Under the situation that internal circulating load at cold-producing medium is little, the instant heating volume flow is little, the measurement temperature of temperature survey portion 8 descends more easily.Thereby the measurement temperature of temperature survey portion 8 declines to a great extent, and therefore is easier to detect the unusual situation of draining that takes place.Like this, improved the precision that 8 pairs of drainings of serviceability temperature measurement section detect unusually.
In the interval d of Fig. 4, under the situation of measurement temperature smaller or equal to the first set point of temperature t5 of temperature survey portion 8, control device 9 makes the speed drop of compressor 2 be low to moderate r2.In this case, the measurement temperature that is predicted as temperature survey portion 8 is the corresponding temperature of rotating speed r2 with compressor 2.Yet under temperature survey portion 8 and situation that dew contacts, the measurement temperature of temperature survey portion 8 further descends.Thereby; Measurement temperature in temperature survey portion 8 is lower than under the situation of the second set point of temperature t3, is judged as temperature survey portion 8 and touches the dew that is accumulated in the drip tray 10, and control device 9 shuts down compressor 2; Wherein, the above-mentioned second set point of temperature t3 is lower than the first set point of temperature t5.Can prevent that dew from overflowing from drip tray 10 through compressor 2 is shut down.
Then, explain that the state after the rotating speed that makes compressor 2 reduces and will reduce keeps second kind of situation of stipulated time.In other routine B1 of the dehumidifying heating apparatus of first embodiment of the present invention, control device 9 makes compressor 2 be rotated with the first rotating speed r1, through after the stipulated time, makes the speed drop of compressor be low to moderate the second rotating speed r2 littler than the first rotating speed r1.Control device 9 carries out following control: the rotating speed that makes compressor 2 is first rotating speed and second rotating speed repeatedly alternately.
Routine B1 in first embodiment of the present invention and the difference of above-mentioned routine A1 be, the rotating speed that makes compressor 2 is first rotating speed and second rotating speed repeatedly alternately.Thus, prevent that dew from overflowing from drip tray 10.
Fig. 5 is the time diagram of the action of expression dehumidifying heating apparatus, shows cold-producing medium ejection temperature, is the variation between the rotating speed of measurement temperature and compressor 2 of temperature survey portion 8.After the entry into service, cold-producing medium ejection temperature rises gradually.
As shown in Figure 5, control device 9 through after the stipulated time, is that the first regulation rotating speed r1 makes the 2 action stipulated times of this compressor with the speed setting of compressor 2 from entry into service the time.Thus, heat pump assembly 7 carries out the removal moisture drying of air.After the measurement temperature of temperature survey portion 8 reaches t1 (for example 100 ℃); Behind stipulated time T1 (for example 20 minutes～30 minutes), control device 9 is kept during the stipulated time T2 (for example 20～30 seconds) state after the rotating speed of compressor 2 reduces and will reduce.At the appointed time T2 during, compressor 2 with than first the regulation rotating speed low second the regulation rotating speed r2 (for example 45rps) be rotated.
At this, if the draining of dew is normal, then cold-producing medium ejection temperature drops to t2 from t1.In interval a, cold-producing medium ejection temperature, be that the measurement temperature of temperature measuring equipment 8 drops to the corresponding temperature of the second regulation rotating speed r2, is t2 along with the reduction of rotating speed.In this case, temperature survey portion 8 does not contact with dew, so the measurement temperature of temperature survey portion 8 is higher than the 3rd set point of temperature t6 (for example 60 ℃).In this case, can be judged as that draining does not take place is unusual.Afterwards, after through stipulated time T2 (for example 20 seconds～30 seconds), compressor 2 turns round with the first original regulation rotating speed r1.That is to say that compressor 2 intermittently moves between rotating speed r1 and r2.
Rotating speed through making compressor 2 is reduced to the second regulation rotating speed r2 from the first regulation rotating speed r1, and the internal circulating load of cold-producing medium reduces, and the thermal capacity flow diminishes.Under the little situation of thermal capacity flow, the measurement temperature of the temperature survey portion 8 when temperature survey portion 8 contacts with dew significantly descends.Therefore, improved the precision of utilizing 8 pairs of drainings of temperature survey portion to detect unusually.
Under the situation that compressor 2 turns round with the first regulation rotating speed r1, the thermal capacity flow that circulation produced of cold-producing medium is big.Though cause the measurement temperature of temperature survey portion 8 to drop to t4 from t1 owing to touching dew, because the thermal capacity flow is big, so this decrease of temperature amount is little.At this, be reduced to r2 through the rotating speed that makes compressor 2 from r1, the thermal capacity flow diminishes.Thus, t4 declines to a great extent.That is, become big through the difference that makes t1 and t4, it is unusual to be easy to utilize temperature survey portion 8 to detect draining, thereby has improved the accuracy of detection of sensor.
In addition, making the stipulated time T1 that compressor 2 turns round with the first regulation rotating speed r1 for example is dozens of minutes (preferred 20 minutes～30 minutes).Under the situation of T1 less than dozens of minutes, exist refrigerant temperature not have the possibility that fully rises in the running.That is, existence utilizes heat pump assembly 7 can not fully carry out the situation of the removal moisture drying of air.In addition, preferably stipulated time T1 overflows the time before for the dew in lodging in drip tray 10.Thereby, can come suitably to confirm stipulated time T1 according to the size of drip tray, the formation speed of dew.
In addition, making the stipulated time T2 that compressor 2 turns round with the second regulation rotating speed r2 for example is tens seconds (preferred 20 seconds～30 seconds).T2 exists refrigerant temperature not have the possibility of fully decline, accuracy of detection reduction less than under tens seconds the situation at the appointed time.T2 is longer than under tens seconds the situation at the appointed time, and the temperature of cold-producing medium descends too much, therefore has the possibility that can not fully add hot-air.Therefore, stipulated time T2 is set at the time that can fully add hot-air and not reduce drying efficiency as far as possible.
In addition, be not limited to this, can wait according to performance, rotating speed, the size of drip tray 10, the formation speed of dew, the drainage speed of compressor 2 and suitably confirm stipulated time T1 and T2.Make alternately repeated multiple times of stipulated time T1 and T2 difference.Thus, even drip tray 10 also can be detected overflowing of dew by under the situation of foreign matter obstruction in compressor 2 operation process.In addition, be r1 with the speed setting of compressor 2, and behind rotation stipulated time T1, be that r2 makes compressor 2 rotation stipulated time T2 speed setting.When compressor 2 was intermittently moved, rotating speed r1 can be identical rotating speed with r2 at every turn, or also can change to different rotating speed.In addition, when compressor 2 was intermittently moved, stipulated time T1 can be the identical time with T2 at every turn, or also can change to different time.Thus, even drip tray 10 also can be detected overflowing of dew by under the situation of foreign matter obstruction in the operation process of compressor 2.
Then, use Fig. 5 that another routine B2 of the dehumidifying heating apparatus of first embodiment of the present invention is described.In routine B2, control device 9 is set at compressor 2 with the first rotating speed r1 and is rotated.Through after the stipulated time, make compressor 2 be reduced to the second rotating speed r2 lower than the first rotating speed r1, and the alternately first rotating speed r1 and the second rotating speed r2 repeatedly.Then, under the situation of measurement temperature smaller or equal to the 3rd set point of temperature t6 of temperature survey portion 8, control device 9 shuts down compressor 2.In the interval b of Fig. 5, cold-producing medium ejection temperature, be that the measurement temperature of temperature survey portion 8 is lower than the 3rd set point of temperature t6.This is that dew is taken away heat because temperature survey portion 8 touches the dew that accumulates in the drip tray 10, and temperature descends thus.In this case, it is unusual that control device 9 is judged as draining, and compressor 2 is shut down.Thus, can prevent that dew from overflowing from drip tray 10.
The routine B2 of first embodiment of the present invention and the difference of above-mentioned routine A1 are: the rotating speed that makes compressor 2 is the first rotating speed r1 and the second rotating speed r2 repeatedly alternately; And under the situation of measurement temperature smaller or equal to the 3rd set point of temperature of temperature survey portion 8, compressor 2 is shut down.That is, not to turn round, but prevent overflowing of dew through compressor 2 is shut down through the rotating speed continued that reduces compressor 2.
In addition, in first embodiment of the present invention, the temperature that compressor 2 is shut down is made as the 3rd set point of temperature t6 (for example 60 ℃).Can wait according to performance, rotating speed, the size of drip tray 10, the formation speed of dew, the drainage speed of compressor 2 and suitably confirm the 3rd set point of temperature.In addition, for the 3rd set point of temperature, also can carry out the running of compressor 2 in advance, minimum and the value that is higher than the condensation of refrigerant temperature that will be lower than the measurement temperature of temperature survey portion 8 are made as set point of temperature.Like this, can judge earlier that draining is unusual.
As stated, the temperature survey portion 8 that is arranged among the pipe arrangement 6A that connects compressor 2 and radiator 3 is arranged in the drip tray 10.And control device 9 is reducing through the rotating speed that makes compressor 2 after the stipulated time.Thus, can improve the precision that 8 pairs of drainings of serviceability temperature measurement section detect unusually.And the rotating speed that can change compressor 2 through the interval with regulation improves accuracy of detection.In addition, can reduce the action of the rotating speed reduction that makes compressor 2, thereby make the action of compressor 2 stable.
Fig. 6 is the major part sectional view of the clothesdrier that possesses the dehumidifying heating apparatus of second embodiment of the present invention.The structure of dehumidifying heating apparatus is identical with the structure of first embodiment, and additional phase Reference numeral together, specifies the explanation of quoting first embodiment.
As the clothesdrier of this embodiment, use the scrubbing-and-drying unit that also possesses washing function to describe.Scrubbing-and-drying unit shown in Figure 6 carries out drying steps after washing, rinsing, each step of dewatering.The elasticity twelve Earthly Branches are holding the tank 22 that accumulates washings in the casing 21 of scrubbing-and-drying unit.Dispose cylinder 23 with the mode that can rotate in the tank 22.Cylinder 23 is as sink, drench pit, dry slot and bring into play function.Front surface side at cylinder 23 is provided with the opening (not shown) that washings such as clothing are put into cylinder 23 or taken out from cylinder 23.Casing 21 is provided with and the corresponding door 25 of the opening of cylinder 23.Shown in the chain-dotted line of Fig. 6, the axial rotary front upper place of cylinder 23 tilts.
The motor 26 of the rear side of cylinder 23 through being installed in tank 22 carries out positive and negative rotation and drives.Inject the washings of the ormal weight of correspondingly setting with the amount of the washings of being put into to cylinder 23.Afterwards, the washings in cylinder 23 mixing drums 23, and to make beating the speed rotation stipulated time of washing that washings in the cylinder 23 fall.When dehydration, cylinder 23 is to be rotated the speed that washings is attached at interior all sides of cylinder 23 through centrifugal force.The washings of deviating from from washings are outside tank 22 is discharged to casing 21.
Then, cylinder 23 was attached at the loose action of washings of interior all sides of cylinder 23 when making dehydration before carrying out drying.Afterwards, the washings in cylinder 23 rotations and the mixing drum 23.At this moment, the drying that after dehumidifying dehumidifies and heats in the heating apparatus, obtains is imported in the cylinder 23 with air.Specifically, pressure fan 29 will be delivered in the tank 22 from the introducing port 27 on the top of the rear side that is arranged at tank 22 with air from the drying of the air blow-off outlet 13 dry high temperature that blow out of dehumidifying heating apparatus.
Be formed with a large amount of open-work (not shown) on interior all sides of cylinder 23.The drying that is imported in the tank 22 gets in the cylinder 23 from open-work with air.Drying, removes the moisture of washings, thereby becomes the air of high humility through contacting with the washings that just in cylinder 23, stirs with air.Like this, make washings dry.The air of high humility and is blown into mouthfuls 12 and circulation the wind path 14 of dehumidifying heating apparatus from the export mouth 28 on the top of the front surface side that is arranged at tank 22 through air from open-work gets into tank 22.
Afterwards, the air of high humility is cooled in heat dump 5 after the dehumidifying once more, gets into radiator 3 and heats, the drying that becomes the high temperature low humidity thus with air after from air blow-off outlet 13 guiding introducing ports 27.Like this, the drying that in the dehumidifying heating apparatus, dehumidifies after heating gets into the cylinder 23 from introducing port 27 with air.Afterwards, drying circulates the circulation wind path 30 that is back to the dehumidifying heating apparatus from export mouth 28 with air, and the washings in the cylinder 23 are carried out drying.The arrow C of Fig. 6 is represented the circulation of this air.
The control device 9 of the clothesdrier in the 3rd embodiment of the present invention has the rapid draing pattern.Under the rapid draing pattern, control device 9 makes the state after the rotating speed of compressor 2 reduces and will reduce keep the stipulated time, when the measurement temperature of temperature survey portion 8 drops to the 4th set point of temperature, compressor 2 is shut down.Other structure is identical with first embodiment, and identical structure is attached with identical Reference numeral, specifies the explanation of quoting first embodiment.
The rapid draing pattern is meant uses the time shorter than common drying time to finish dry operation mode.Under the rapid draing pattern, compressor 2 turns round with high rotating speed (for example 100rps).Under the rapid draing pattern, when using R134a to be used as cold-producing medium, the condensation temperature of the cold-producing medium in the radiator 3 reaches 70 ℃.This condensation temperature is higher than the condensation temperature under the common drying mode.
On the other hand, in this case, the evaporating temperature of the cold-producing medium in the heat dump 5 is 15 ℃.This evaporating temperature is lower than the evaporating temperature under the common drying mode.Because evaporating temperature is low, therefore be arranged at the also step-down of surface temperature of the fin of heat dump 5.Therefore, the quantitative change of the dew in the heat dump 5 is many.Thereby under the rapid draing pattern, control device 9 makes the rotating speed of compressor 2 compare reduction (about for example per 10 minutes 1 time) more continually with common drying mode.In addition, make the frequency of the rotating speed reduction of compressor 2 be not limited to this, can wait according to performance, rotating speed, the size of drip tray, the formation speed of dew, the drainage speed of compressor suitably and confirm.In addition, the 4th set point of temperature both can be identical with first set point of temperature, also can wait according to performance, rotating speed, the size of drip tray, the formation speed of dew, the drainage speed of compressor suitably and confirm.
According to said structure, under the rapid draing pattern, compressor 2 turns round at high speed, so the thermal capacity flow of cold-producing medium becomes big.Temperature when therefore, temperature survey portion 8 contacts with dew descends and diminishes.In this embodiment, the state after can reducing through the rotating speed that makes compressor 2 and will reduce is kept the stipulated time, and it is unusual to come to detect accurately draining.Thus, when the measurement temperature of temperature survey portion 8 drops to set point of temperature, be judged as that draining has taken place is unusual.Through making compressor 2 shut down to prevent overflowing of dew.
Other example of the 3rd embodiment of the present invention then, is described.Under the rapid draing pattern, when the measurement temperature of temperature survey portion 8 dropped to the 4th set point of temperature, control device 9 made the state after the rotating speed of compressor 2 reduces and will reduce keep the stipulated time.Thus, the thermal capacity flow of cold-producing medium diminishes, and under temperature survey portion 8 and situation that dew contacts, the measurement temperature of temperature survey portion 8 further descends.Thus, improved the precision that the water level abnormality in the drip tray 10 is detected.In addition; State after the rotating speed that makes compressor 2 reduces and will reduce keeps the stipulated time and owing to the rotating speed reduction of compressor 2 when the measurement temperature of temperature survey portion 8 drops to than low the 5th set point of temperature of the 4th set point of temperature, control device 9 shuts down compressor 2.
Under temperature survey portion 8 and situation that dew contacts; Compare with the situation that the internal circulating load of cold-producing medium is a normal state, the instant heating volume flow is big; Under the situation that internal circulating load reduces, the instant heating volume flow is little of cold-producing medium, the measurement temperature of temperature survey portion 8 is easier to descend.Thereby under temperature survey portion 8 and situation that dew contacts, the measurement temperature of temperature survey portion 8 declines to a great extent, and therefore becomes to be easier to detect the unusual situation of draining that takes place.Like this, improve serviceability temperature measurement section 8 and detected the unusual accuracy of detection of draining.
In addition, reduce the action of the rotating speed reduction that makes compressor 2, make compressor 2 actions stable thus.Through making compressor 2 stably be rotated action, can carry out dry operating more efficiently.
In addition, in the 3rd embodiment of the present invention, the scrubbing-and-drying unit that possesses washing function is illustrated.But, can be implemented on too and not have washing function and only carry out in the clothesdrier of cloth drying.
Claims (9)
- One kind the dehumidifying heating apparatus, possess:Heat pump assembly, it has compressor, radiator, restriction and heat dump;Temperature survey portion, it is arranged at the pipe arrangement that connects above-mentioned compressor and above-mentioned radiator; AndDrip tray, it receives in the above-mentioned heat dump dew that carries out heat exchange with air and produce,Wherein, the said temperature measurement section is arranged at the downside that overflows the boundary position of dew from above-mentioned drip tray.
- 2. dehumidifying heating apparatus according to claim 1 is characterized in that,Under the situation of temperature smaller or equal to first set point of temperature of said temperature measurement section, the control device of the running of control above-mentioned compressor makes the state after the rotating speed of above-mentioned compressor reduces and will reduce keep the stipulated time.
- 3. dehumidifying heating apparatus according to claim 2 is characterized in that,Under the situation of temperature smaller or equal to above-mentioned first set point of temperature of said temperature measurement section; Above-mentioned control device makes the state after the rotating speed of above-mentioned compressor reduces and will reduce keep the stipulated time; Then; Under the situation of temperature smaller or equal to second set point of temperature lower than above-mentioned first set point of temperature of said temperature measurement section, above-mentioned control device shuts down above-mentioned compressor.
- 4. dehumidifying heating apparatus according to claim 1 is characterized in that,The control device of running of control above-mentioned compressor from the above-mentioned compressor entry into service time through first stipulated time after, the state after making the rotating speed of above-mentioned compressor reduce and will reduce kept for second stipulated time.
- 5. dehumidifying heating apparatus according to claim 4 is characterized in that,Above-mentioned control device makes above-mentioned compressor be rotated with first rotating speed, after through the 3rd stipulated time, makes the speed drop of above-mentioned compressor be low to moderate second rotating speed that is lower than above-mentioned first rotating speed, alternately above-mentioned repeatedly first rotating speed and above-mentioned second rotating speed.
- 6. dehumidifying heating apparatus according to claim 4 is characterized in that,Above-mentioned control device makes above-mentioned compressor be rotated with first rotating speed; After through the 3rd stipulated time; Make the speed drop of above-mentioned compressor be low to moderate second rotating speed that is lower than above-mentioned first rotating speed, alternately above-mentioned repeatedly first rotating speed and above-mentioned second rotating speed, then; Under the situation of temperature smaller or equal to the 3rd set point of temperature of said temperature measurement section, above-mentioned compressor is shut down.
- 7. clothesdrier, it possesses according to each the described dehumidifying heating apparatus in the claim 1 to 6.
- 8. clothesdrier according to claim 7 is characterized in that,The control device of the running of control above-mentioned compressor has the rapid draing pattern,When being set to above-mentioned rapid draing pattern; Above-mentioned control device makes the state after the rotating speed of above-mentioned compressor reduces and will reduce keep the stipulated time; Under the situation of temperature smaller or equal to the 4th set point of temperature of said temperature measurement section, above-mentioned control device shuts down above-mentioned compressor.
- 9. clothesdrier according to claim 7 is characterized in that,The control device of the running of control above-mentioned compressor has the rapid draing pattern,When being set to above-mentioned rapid draing pattern; If the temperature of said temperature measurement section is smaller or equal to the 4th set point of temperature; Then above-mentioned control device makes the state after the rotating speed of above-mentioned compressor reduces and will reduce keep the stipulated time; Then, under the situation of temperature smaller or equal to five set point of temperature lower than above-mentioned the 4th set point of temperature of said temperature measurement section, above-mentioned control device shuts down above-mentioned compressor.
Applications Claiming Priority (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010177217A JP2012034815A (en) | 2010-08-06 | 2010-08-06 | Dehumidifying and heating apparatus and clothes dryer using the same |
| JP2010-177218 | 2010-08-06 | ||
| JP2010-177217 | 2010-08-06 | ||
| JP2010-177216 | 2010-08-06 | ||
| JP2010177218A JP2012034816A (en) | 2010-08-06 | 2010-08-06 | Dehumidifying and heating apparatus and clothes dryer using the same |
| JP2010177216A JP2012034814A (en) | 2010-08-06 | 2010-08-06 | Dehumidifying and heating apparatus and clothes dryer using the same |
| JP2011-004680 | 2011-01-13 | ||
| JP2011004680A JP2012143427A (en) | 2011-01-13 | 2011-01-13 | Dehumidifying and heating apparatus and clothes dryer using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102374700A true CN102374700A (en) | 2012-03-14 |
| CN102374700B CN102374700B (en) | 2014-05-07 |
Family
ID=44719221
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110225128.4A Expired - Fee Related CN102374700B (en) | 2010-08-06 | 2011-08-05 | Dehumidifying-warming apparatus and clothes drier using same |
| CN201110225142.4A Expired - Fee Related CN102374699B (en) | 2010-08-06 | 2011-08-05 | Dehumidifying-warming apparatus and clothes drier |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110225142.4A Expired - Fee Related CN102374699B (en) | 2010-08-06 | 2011-08-05 | Dehumidifying-warming apparatus and clothes drier |
Country Status (2)
| Country | Link |
|---|---|
| EP (2) | EP2415927B1 (en) |
| CN (2) | CN102374700B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104532529A (en) * | 2014-12-24 | 2015-04-22 | 常州市常蒸热交换器科技有限公司 | Radiator for dryer in washing machine |
| CN111207570A (en) * | 2020-03-31 | 2020-05-29 | 郑州轻工业大学 | Energy-saving heat pump drying system and control method thereof |
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| KR101919887B1 (en) * | 2012-05-15 | 2018-11-19 | 엘지전자 주식회사 | A clothes dryer |
| ITPR20120082A1 (en) * | 2012-11-27 | 2014-05-28 | Meccanica Generale Srl | WASHING MACHINE WITH FRONTAL LOADING WITH INCORPORATED DRYING SYSTEM |
| EP2746457A1 (en) * | 2012-12-18 | 2014-06-25 | Electrolux Home Products Corporation N.V. | A method for controlling a heat pump system for a laundry drying machine and a corresponding laundry drying machine |
| DE102013222929A1 (en) | 2013-11-11 | 2015-05-13 | BSH Bosch und Siemens Hausgeräte GmbH | Method for operating a dryer with a heat pump and dryer suitable for this purpose |
| US9670612B2 (en) | 2014-08-13 | 2017-06-06 | Lg Electronics Inc. | Laundry treatment apparatus and method for controlling a laundry treatment apparatus |
| DE102014218253A1 (en) | 2014-09-11 | 2016-03-17 | BSH Hausgeräte GmbH | Household appliance for drying laundry, comprising a temperature sensor |
| DE102015203682A1 (en) | 2015-03-02 | 2016-09-08 | BSH Hausgeräte GmbH | Dryer with a heat pump with variable refrigerant mass and method for its operation |
| DE102015203663A1 (en) | 2015-03-02 | 2016-09-08 | BSH Hausgeräte GmbH | Method for operating a dryer with a heat pump and dryer suitable for this purpose |
| DE102015205483A1 (en) | 2015-03-26 | 2016-11-03 | BSH Hausgeräte GmbH | Method for carrying out a hygiene program in a dryer with a heat pump and dryer suitable for this purpose |
| PL3425109T3 (en) * | 2017-07-07 | 2022-08-22 | Electrolux Appliances Aktiebolag | Method of operating a heat pump laundry dryer or heat pump washing machine having drying function |
| EP3467187B1 (en) | 2017-10-09 | 2021-12-22 | Whirlpool Corporation | Filter configured for being used in a machine for drying laundry and machine for drying laundry equipped with such a filter |
| KR102102654B1 (en) | 2018-04-18 | 2020-05-29 | 엘지전자 주식회사 | A lAundry treAting AppArAtus And A Control method of the sAme |
| CN112663267A (en) * | 2019-09-29 | 2021-04-16 | 无锡飞翎电子有限公司 | Clothes treating apparatus, control method thereof, operation control device and storage medium |
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- 2011-08-05 CN CN201110225128.4A patent/CN102374700B/en not_active Expired - Fee Related
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Also Published As
| Publication number | Publication date |
|---|---|
| EP2415928A2 (en) | 2012-02-08 |
| EP2415927B1 (en) | 2016-07-20 |
| EP2415928A3 (en) | 2015-09-02 |
| EP2415927A3 (en) | 2015-08-19 |
| EP2415927A2 (en) | 2012-02-08 |
| CN102374699A (en) | 2012-03-14 |
| CN102374700B (en) | 2014-05-07 |
| CN102374699B (en) | 2014-09-24 |
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