CN100455715C - Filter blockage judging method for drum drying machine - Google Patents
Filter blockage judging method for drum drying machine Download PDFInfo
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- CN100455715C CN100455715C CNB2003101068164A CN200310106816A CN100455715C CN 100455715 C CN100455715 C CN 100455715C CN B2003101068164 A CNB2003101068164 A CN B2003101068164A CN 200310106816 A CN200310106816 A CN 200310106816A CN 100455715 C CN100455715 C CN 100455715C
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- filter
- drum outlet
- cylinder dryer
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Abstract
The present invention discloses a filter blockage judging method for a drum drying machine. Different temperature change quantity is detected according to foreign matter adsorbed on a filter, and the magnitude of the foreign matter on the filter is judged. Thus, the filter can be replaced or the filter is cleaned at proper time.
Description
Technical field
The present invention relates to household clothes dryer control or adjustment technology field, particularly about the plugged filter method of discrimination of cylinder dryer, according to detecting different temperature variations attached to the foreign matter quality on the filter, and many or few according to these amounts of differentiating the foreign substances on the filter, the plugged filter of the cylinder dryer of can be in due course thus replacement or scavenge filter prevents method.
Background technology
Recently, developed the cylinder dryer of washings such as clothing washing back oven dry, and such cylinder dryer is the endless form of reusing after the air circulation of using when having adopted oven dry, such circulation running is with reference to Fig. 1 explanation.
At first, if put into the clothing that will dry in the cylinder (100), and the warm braw of generation supplies in the cylinder (100) when heater (110) heated, like this contact with clothing of warm braw of Gong Geiing and cylinder (100) and drying clothes.At this moment, how wet clothing oven dry and the high temperature that produces air row to condenser (120), and the air of discharging is cooled through condenser (120), the air of process condenser (120) supplies in the cylinder (100) after being heated by heater (110) again, and such circulation carries out till operating the time that the user sets repeatedly, thus the clothing in the drying roller (100).
Possess in the roller washing machine of such operational structures, particularly the air that the high temperature that produces of clothing oven dry back is how wet from cylinder (100) row on the condenser (120) time, in order to remove these airborne foreign substances, drum cover (130) is gone up filter (not shown) is installed.As shown in Figure 2, filter (133) is installed on the interior assigned address of drum cover (130) that is made of interior side roller cover (131) and outer side roller cover (132), and a plurality of meshes that the many wet air of the high temperature that cylinder (100) is discharged pass through drum cover (130) front flow into, and therefore adsorb foreign substances and remove foreign substances from leaked-in air.
But, if continue to use such filter (133), pile up the foreign substances of a lot of amounts on filter (133) body, thus filter (133) must be replaced, and the above-mentioned filter of handlebar (133) is replaced or inform user's necessity in period of cleaning etc.
Summary of the invention
The purpose that the present invention is provides the plugged filter method of discrimination of the cylinder dryer of informing the user suitable period that filter is replaced or cleaned.
The present invention adopts the temperature variation of the drum outlet that changes according to the foreign matter quality of adhering on the filter and the temperature variation of calorifier inlets to achieve the above object, judge that the foreign matter quality on the filter is many or few, so can replace or scavenge filter in suitable period.
For these the present invention pass through, along with the drying order input that the user selects, open (ON) is equipped with the drum outlet inductor that is provided with on the oven dry inductor that is provided with on the outer bucket of cylinder dryer of filter and the outlet side by outside above-mentioned barrel of cylinder that wraps on door the 1st stage;
The oven dry inductor of opening (ON) in the 1st stage detects the initial stage load, and the drum outlet inductor detects the 2nd stage of drum outlet temperature variation in setting-up time;
In the 3rd stage that the detected initial stage load of above-mentioned oven dry inductor of the 2nd stage and the load of having set and the detected drum outlet temperature variation of drum outlet inductor and the drum outlet temperature reference variable quantity set compare separately;
The 3rd stage comparative result, if above-mentioned initial stage load is littler than above-mentioned drum outlet fiducial temperature variable quantity than the big and above-mentioned drum outlet temperature variation of the load of having set, just judge become above-mentioned cylinder dryer on the 4th blocked stage of filter of setting; Whether the filter that can determine the cylinder dryer stops up.
The plugged filter method of discrimination of described cylinder dryer, it is characterized in that also including in the 4th stage, above-mentioned the 3rd stage comparative result, if above-mentioned initial stage load is littler than above-mentioned drum outlet fiducial temperature variable quantity than the big also above-mentioned drum outlet temperature variation of the load of having set, just carry out the drying order input selected along with the user in above-mentioned the 1st stage, the heter temperature inductor in the cylinder dryer in the time of setting detected calorifier inlets temperature variation and, calorifier inlets fiducial temperature variable quantity the 5th stage relatively of having set; The comparative result in the 5th stage if above-mentioned detected calorifier inlets temperature variation is more than the calorifier inlets fiducial temperature variable quantity of having set, is just judged into the door of above-mentioned cylinder dryer and is gone up the 6th blocked stage of filter that is provided with.
The plugged filter method of discrimination of described cylinder dryer, the comparative result that it is characterized in that the 5th stage in the 6th stage, if above-mentioned detected calorifier inlets temperature variation is littler than the calorifier inlets fiducial temperature variable quantity of having set, a filter that upward is provided with of just judging into above-mentioned cylinder dryer does not have blocked.
The plugged filter method of discrimination of described cylinder dryer, it is characterized in that the 3rd stage comparative result in above-mentioned the 4th stage, if the drum outlet temperature variation is littler than drum outlet temperature reference temperature variation, the comparative result of just judging the load that becomes to catch up with to state the initial stage load and set is irrelevant, and the filter that is provided with on the above-mentioned cylinder oven dry gate does not have blocked.
The plugged filter method of discrimination of described cylinder dryer is characterized in that informing to the user the 7th stage of the information that filter is plugged after above-mentioned the 4th stage.
The plugged filter method of discrimination of described cylinder dryer is characterized in that spreading out of alarm tone (S120) or extinguishes the LED relevant with the plugged filter display lamp in above-mentioned the 7th stage.
As above-mentioned, following effect is arranged according to the plugged filter method of discrimination of roller washing machine of the present invention.Detect different temperature variations according to the amount that is adsorbed on the foreign substances on the filter, and utilize these amounts of judging the foreign substances on the filter many or few, can replace filter in suitable period thus.
Description of drawings
Fig. 1 is the drawing of the general roller washing machine structure of diagram.
Fig. 2 is the drawing that is shown in the filter that uses in the illustrated cylinder dryer among Fig. 1.
Fig. 3 a is the drawing of diagram attached to the variations in temperature under the state how of the foreign matter quality on the filter.
Fig. 3 b is the drawing of diagram attached to the variations in temperature under the foreign matter FAQ state on the filter.
Fig. 3 c is the drawing of diagram attached to the variations in temperature under the few state of the foreign matter quality on the filter.
Fig. 4 is that diagram is suitable for the drawing according to the roller washing machine structure of the plugged filter method of discrimination of roller washing machine of the present invention.
Fig. 5 a and Fig. 5 b are the plugged filter method of discrimination flow chart of diagram according to roller washing machine of the present invention.
Explanation for figure major part symbol
400: cylinder 410: drum cover
420: condenser 430: motor
440: heater 450: the drum outlet temperature inductor
460: calorifier inlets temperature inductor Tm: calorifier inlets detected temperatures
T
D: drum outlet detected temperatures Tr: calorifier inlets fiducial temperature
Tf: drum outlet fiducial temperature Ld: load
H: assumed load amount
The specific embodiment
Below, check the present invention with reference to the drawing that adds.At first, be applicable to filter state among the present invention and the relation between the variations in temperature with reference to Fig. 3 a to Fig. 3 c explanation.Fig. 3 a is the drawing of diagram attached to the variations in temperature of (hereinafter to be referred as " volume state ") under the amount state how of the foreign substances on the filter.Fig. 3 b is the drawing of diagram attached to the variations in temperature under the medium state of the amount of the foreign substances on the filter (hereinafter to be referred as " middle amount state ").Fig. 3 c is the drawing of diagram attached to the variations in temperature under the few state of the foreign matter quality on the filter (hereinafter to be referred as " a small amount of state ").
1) it is identical that Fig. 3 a, Fig. 3 b, Fig. 3 c middle filtrator are differentiated the time period (TO-TE).
2) in each drawing (Fig. 3 a, Fig. 3 b, Fig. 3 c), the lower limit temperature variable quantity;
That is, (A1-A2), (C1-C2), (E1-E2) → drum outlet variation of temperature amount ceiling temperature variable quantity
Both, (B1-B2), (D1-D2), (F1-F2) → calorifier inlets variation of temperature amount
3) drum outlet variation of temperature amount;
At first, differentiating starting point (TO) is differentiated terminal point (TE) to filter time period (TO-TE) lining from filter state, (A1-A2) is minimum for the temperature variation of volume state, and secondly the temperature variation of middle amount state (C1-C2) is, the temperature variation (E1-E2) of a small amount of state is maximum.
Therefore, when the temperature variation of the few relatively a small amount of state of foreign substances on the filter is defined as the benchmark variable quantity, differentiate in the time period in identical filter state, can judge into when lacking than the said reference variable quantity has a lot of foreign substances on the filter.
4) calorifier inlets variation of temperature amount;
At first, differentiating starting point (TO) is differentiated terminal point (TE) to filter time period (TO-TE) lining from filter state, the temperature variation of volume state (B1-B2) is maximum, the temperature variation of middle amount state (D1-D2) secondly, the temperature variation (F1-F2) of a small amount of state is minimum.
Therefore, when the temperature variation of a small amount of state that foreign substances is few relatively on the filter is defined as the benchmark variable quantity, differentiate in the time period in identical filter state, can judge into than said reference variable quantity time of Duoing has a lot of foreign substances on the filter.
As above-mentioned, if utilize according to the different temperature variation of amount that is adsorbed on the foreign substances on the filter, the amount that can differentiate the foreign substances on the filter is many or few, so can replace filter in suitable period.
Below, with reference to Fig. 4 suitable cylinder dryer of the present invention is described.Fig. 4 is the oblique view that diagram adopts roller washing machine of the present invention, symbol 400 is cylinders of putting into the clothing that will dry, symbol 410 is arranged on the drum cover that is positioned at cylinder (400) the place ahead when door is gone up and closed to door, and inner insertion of above-mentioned drum cover (410) is equipped with filter (not shown).
And the lower end of above-mentioned drum cover (410) is provided with oven dry inductor (not shown), and the clothing that rotates in cylinder (400) when drying clothes contacts with above-mentioned oven dry inductor.
Symbol 420 is condensers of the steam that produced by oven dry of the interior clothing of the above-mentioned cylinder of condensation (400), and symbol 430 is motors of rotary drum (400), and symbol 440 is the air of cylinder (400) lining was discharged and flow in heating from condenser heaters.
Particularly according to the present invention, cylinder (400) outlet side is equipped with the drum outlet temperature inductor of symbol 450, and the calorifier inlets side is equipped with the heter temperature inductor of symbol 460.
The temperature of the air of drum cover (410) internal filter (not shown) discharge is discharged and is passed through in the perception of above-mentioned drum outlet temperature inductor from cylinder (400).
And the result by above-mentioned Fig. 3 a to Fig. 3 c learns, the temperature variation of above-mentioned drum outlet temperature inductor is few relatively when lacking than relative foreign substances when a lot of foreign substances is arranged on the filter.Therefore the present invention utilizes such characteristic to learn the period of replacement or scavenge filter.
Both, when the temperature variation of the few relatively a small amount of state of foreign substances on the filter was defined as the benchmark variable quantity, can judge into when lacking than the said reference variable quantity in identical filter state is differentiated the time period had a lot of foreign substances on the filter.Learn the period of replacement or scavenge filter thus.
And, above-mentioned calorifier inlets temperature inductor (460) perception produces and flow into the temperature of the air in the cylinder (400) on heater, but learns when on the filter a lot of foreign substances being arranged compared with foreign substances the many relatively situations of temperature variation of above-mentioned calorifier inlets temperature inductor few the time by test.
Therefore, when the temperature variation of the few relatively a small amount of state of foreign substances on the filter is defined as the benchmark variable quantity, can judge into when Duo than the said reference variable quantity in identical filter state is differentiated the time period has a lot of foreign substances on the filter, and learns the period of replacement or scavenge filter by these.
Below, describe such plugged filter method of discrimination more in detail with reference to Fig. 5 a.Fig. 5 a is the figure of explanation according to an embodiment of the plugged filter method of discrimination of roller washing machine of the present invention.
At first, shown in above-mentioned Fig. 5 a, plugged filter method of discrimination of the present invention, along with the drying order input (S10) that the user selects, open heter temperature inductor (S20) that is provided with on the calorifier inlets side of (ON) cylinder dryer and the drum outlet inductor (S30) that on the outlet side of cylinder, is provided with.
If by above-mentioned stage (S20, S30) heter temperature inductor and drum outlet inductor are opened (ON), in setting-up time section (S40) lining, above-mentioned heter temperature inductor perception calorifier inlets temperature (S41), drum outlet inductor perception drum outlet temperature (S51).
Then, when the calorifier inlets temperature of (S41) above-mentioned heter temperature inductor perception of above-mentioned stage is the initial stage temperature of perception the earliest (S42), above-mentioned initial stage temperature is set at heater fiducial temperature (T
r); And crossed setting-up time (S44) afterwards, detected the temperature (T of perception in the above-mentioned heter temperature inductor
r), the temperature variation that calculates calorifier inlets thus promptly, through after the setting-up time from the value (dT of gap between the calorifier inlets fiducial temperature of the temperature of above-mentioned heter temperature inductor perception and initial stage temperature
r) (S45), and temporary transient heter temperature inductor out of service (S46).
And, and above-mentioned one connect the stage and separate, when the drum outlet temperature of (S51) above-mentioned drum outlet inductor perception of above-mentioned stage is the initial stage temperature of perception the earliest (S52), above-mentioned initial stage temperature setting (S53) one-tenth drum outlet fiducial temperature (T
f); And crossed (S54) after the design temperature, detected temperature (T from the perception of drum outlet temperature
d), calculated thus on the appointment starting point behind the above-mentioned setting-up time the drum outlet temperature variation promptly, the temperature of above-mentioned heter temperature inductor perception and the value (dT of the gap between the calorifier inlets fiducial temperature
f) (S55), and store above-mentioned value (S56).
Then, if store the temperature variation of calorifier inlets and the temperature variation that exports in (S56) storage cylinder of above-mentioned stage in the above-mentioned stage (S46), at this moment shown in Fig. 5 b, the oven dry inductor of opening (ON) according to the above-mentioned stage (S10) detects the initial stage load, but above-mentioned " initial stage load (Ld) " is dependency relation between the amount of moisture that the washings of cylinder inside and above-mentioned washings are contained calculates an arithmetic value with certain relational expression a physical property value.
And if detect initial stage load (Ld) in the above-mentioned stage (S60), detected initial stage load (Ld) and the load of having set (H) compare (S80).Comparative result, if above-mentioned initial stage load (Ld) is below the assumed load amount (H), the heater of above-mentioned cylinder dryer inside is opened (ON) (S90).
Then, at above-mentioned stage (S90), if along with opening (ON) heater to cylinder dryer inner air circulation circulation beginning, relatively the drum outlet temperature variation (dT that has stored in the above-mentioned stage (S56)
f) and the drum outlet temperature variation (T that set
1) (S100); And relatively dry the initial stage load (Ld) that inductor detects and the load of having set (L) (S110) in the above-mentioned stage (S90).Above-mentioned comparison the stage (S90) simultaneously or carry out separately.
The comparative result in above-mentioned stage (S110) is if initial stage load (Ld) is bigger than the load of having set (L), drum outlet temperature variation (dT
f) be drum outlet temperature reference temperature variation (T
1)
Below[should be above], it be blocked just to judge into the filter that is provided with on the above-mentioned cylinder oven dry gate.
And the comparative result in above-mentioned stage (S110) is if drum outlet temperature variation (dT
f) at drum outlet temperature reference temperature variation (T
1) little, the comparative result of catching up with the load (L) of stating initial stage load (Ld) and having set is irrelevant, does not have blocked with regard to judging into the filter that is provided with on the above-mentioned cylinder oven dry gate.
And, the comparative result in above-mentioned stage (S110), if initial stage load (Ld) than the load of having set (L) little and drum outlet temperature variation (dT
f) at drum outlet temperature reference temperature variation (T
1) below, the heter temperature inductor that compares in the cylinder dryer in the above-mentioned stage (S110) detects the calorifier inlets temperature variation (dT that the back stores in setting-up time
f) and the calorifier inlets fiducial temperature variable quantity (T that set
2) (S150).And (S150) comparative result of above-mentioned stage if the calorifier inlets temperature variation of above-mentioned detection is more than the heater fiducial temperature variable quantity of having set, just judges that to become the filter that is provided with on above-mentioned cylinder oven dry gate blocked; (S150) comparative result of above-mentioned stage if the calorifier inlets temperature variation of above-mentioned detection is below the heater fiducial temperature variable quantity of having set, becomes the filter that is provided with on above-mentioned cylinder oven dry gate not have blocked with regard to judging.
Then, blocked as if judging filter by the above-mentioned stage, spread out of alarm tone (S120) or extinguish the LED[LCD relevant with the plugged filter demonstration] (S130).Inform that thus the above-mentioned filter of user is blocked, and above-mentioned stage (S60) operation and dry running.Even this is blocked for filter, a relevant actual notice user also proceeds the oven dry running; The form that stops to dry running when filter is blocked in contrast is also possible.All possible for such various deformation.
The present invention only is illustrated the concrete example of record, but can carry out various deformation and finishing in technological thought scope of the present invention, works as the dealer for this point and is perfectly clear.And such distortion and finishing belong to patent request scope certainly.
Claims (7)
1. the plugged filter method of discrimination of a cylinder dryer, it is characterized in that by drying order according to user input, open ON on door, be equipped with the oven dry inductor that is provided with on the outer bucket of cylinder dryer of filter and outside the 1st stage of the drum outlet inductor that is provided with on the outlet side of barrel cylinder that wraps; The oven dry inductor that the 1st stage was opened ON detects the initial stage load, and the drum outlet inductor detects the 2nd stage of drum outlet temperature variation in setting-up time; In the 3rd stage that the 2nd stage oven dry detected initial stage load of inductor and the load of having set and the detected drum outlet temperature variation of drum outlet inductor and the drum outlet temperature reference variable quantity set compare separately; Judge according to the 3rd stage comparative result whether the 4th blocked stage constitutes the filter that is provided with on the door of cylinder dryer.
2. the plugged filter method of discrimination of cylinder dryer according to claim 1 is characterized in that in the 4th stage,
The 3rd stage comparative result, if above-mentioned initial stage load is littler than above-mentioned drum outlet fiducial temperature variable quantity than the big and above-mentioned drum outlet temperature variation of the load of having set, the door of just judging into the above-mentioned cylinder dryer upward filter of setting is blocked.
3. the plugged filter method of discrimination of cylinder dryer according to claim 1, it is characterized in that also including in the 4th stage, above-mentioned the 3rd stage comparative result, if above-mentioned initial stage load is littler than above-mentioned drum outlet fiducial temperature variable quantity than the big also above-mentioned drum outlet temperature variation of the load of having set, just carry out the drying order input selected along with the user in above-mentioned the 1st stage, the heter temperature inductor in the cylinder dryer in the time of setting detected calorifier inlets temperature variation and, the calorifier inlets fiducial temperature variable quantity of having set the 5th stage relatively; The comparative result in the 5th stage if above-mentioned detected calorifier inlets temperature variation is more than the calorifier inlets fiducial temperature variable quantity of having set, is just judged into the door of above-mentioned cylinder dryer and is gone up the 6th blocked stage of filter that is provided with.
4. the plugged filter method of discrimination of cylinder dryer according to claim 3, the comparative result that it is characterized in that the 5th stage in the 6th stage, if above-mentioned detected calorifier inlets temperature variation is littler than the calorifier inlets fiducial temperature variable quantity of having set, a filter that upward is provided with of just judging into above-mentioned cylinder dryer does not have blocked.
5. the plugged filter method of discrimination of cylinder dryer according to claim 1, it is characterized in that the 3rd stage comparative result in above-mentioned the 4th stage, if the drum outlet temperature variation is littler than drum outlet temperature reference temperature variation, the comparative result of just judging the load that becomes to catch up with to state the initial stage load and set is irrelevant, and the filter that is provided with on the above-mentioned cylinder oven dry gate does not have blocked.
6. the plugged filter method of discrimination of cylinder dryer according to claim 1 is characterized in that informing to the user the 7th stage of the information that filter is plugged after above-mentioned the 4th stage.
7. the plugged filter method of discrimination of cylinder dryer according to claim 6 is characterized in that spreading out of alarm tone or extinguish the LED relevant with the plugged filter display lamp in above-mentioned the 7th stage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101068164A CN100455715C (en) | 2003-10-30 | 2003-10-30 | Filter blockage judging method for drum drying machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101068164A CN100455715C (en) | 2003-10-30 | 2003-10-30 | Filter blockage judging method for drum drying machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1611665A CN1611665A (en) | 2005-05-04 |
| CN100455715C true CN100455715C (en) | 2009-01-28 |
Family
ID=34757787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101068164A Expired - Fee Related CN100455715C (en) | 2003-10-30 | 2003-10-30 | Filter blockage judging method for drum drying machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100455715C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100872234B1 (en) * | 2007-04-18 | 2008-12-05 | 엘지전자 주식회사 | Clogging detecting method for dryer |
| CN101929060B (en) * | 2010-08-03 | 2016-12-07 | 青岛海尔洗衣机有限公司 | A kind of method of intelligently prompting trash line clearup for clothes dryer and dryer |
| CN104562606A (en) * | 2013-10-29 | 2015-04-29 | 海尔集团公司 | Method for judging blockage of line chip filter of clothes drying machine and clothes drying machine |
| CN107121450B (en) * | 2017-05-02 | 2021-05-04 | 北京小米移动软件有限公司 | Air purification equipment and detection method and device of filter element |
| EP4339356A1 (en) * | 2021-05-31 | 2024-03-20 | Wuxi Little Swan Electric Co., Ltd. | Condenser blockage detection method and apparatus, laundry treatment device, and storage medium |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1502919A (en) * | 1975-03-24 | 1978-03-08 | Hitachi Ltd | Clothes drier |
-
2003
- 2003-10-30 CN CNB2003101068164A patent/CN100455715C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1502919A (en) * | 1975-03-24 | 1978-03-08 | Hitachi Ltd | Clothes drier |
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