CN100375818C - Drying machine and control method thereof - Google Patents
Drying machine and control method thereof Download PDFInfo
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- CN100375818C CN100375818C CNB021242437A CN02124243A CN100375818C CN 100375818 C CN100375818 C CN 100375818C CN B021242437 A CNB021242437 A CN B021242437A CN 02124243 A CN02124243 A CN 02124243A CN 100375818 C CN100375818 C CN 100375818C
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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Abstract
The present invention discloses a drying machine and a control method thereof. The present invention relates to a structure of the drying machine and a control method. The drying machine has the structure that a main plate for controlling the operation of the drying machine, and a converter plate for switching and controlling a driving source of a roller are arranged in a box body. In the control method of the drying machine, the rotation speed of a variable controlled exhaust blower is monitored, and the blocking degree of a gauze filter and an exhaust pipe is sensed. When the blockage of the gauze filter and the exhaust pipe is sensed, the rotation number of the exhaust blower is greatly increased than a reference value to control airflow rise in the roller. The heat productivity of a heater can be controlled so that the heat productivity of the heater can not reach the switching-off temperature of the heater, and the increase of drying time is prevented. The present invention has the advantages that the drying time when the gauze filter is blocked is shortened, and the damage to clothing due to temperature rise can be prevented.
Description
Technical field
What the present invention relates to is the invention of dryer aspect, particularly be the invention of control method aspect such as drying time, temperature to dryer.
Background technology
Existing dryer as shown in Figure 1, its structure is in shell (not expressing in the drawing) inside cylinder 44 to be housed.Cylinder 44 is cylinders of both ends open, and the drum belt (not expressing in the drawing) that drives by independent drive source is wrapped on the belt grooves 2, and belt grooves 2 is at the outer peripheral face pars intermedia of cylinder 44.The inside of cylinder 44 is oven dry space 5.There are a plurality of baffle plates 6 inside in oven dry space 5, and a plurality of baffle plates overturn to the oven dry thing in oven dry 5 inside, space when cylinder 44 rotations.
Corresponding position, the front-end and back-end branch of cylinder 44 is equipped with front 7 and back 9.When front 7 and the back 9 and the front-end and back-end of back-up roller 44 respectively,, form oven dry space 5 when front 7 and back 9 open portion with cylinder 44 stop up.In order to prevent the leakage between counterrotating front 7, back 9 and the cylinder 44, in front 7 and above-mentioned cylinder 44, back 9 and cylinder 44 between be provided with seal member.For back-up roller 44, a plurality of wheel (not expressing in the drawing) is housed on the position of the front-end and back-end of cylinder 44 correspondence.
On the front 7 through hole 8 is arranged, through hole 8 is communicated with the inside and outside of oven dry spaces 5.Through hole 8 optionally opens and closes by door (not pointing out out in the drawing).
On the back 9 air feed passage 46 is arranged, the effect of air feed passage 46 is with air, more precisely with the inside of hot blast feeding to oven dry space 5, so be connected with the inside in oven dry space 5.
In addition, the lower end correspondence of the through hole 8 of front 7 be the spout assembly 13 of a side of front 7, spout assembly 13 be used for will oven dry 5 inside, space air discharge.Gauze filter 36 is arranged on the spout assembly 13.The effect of gauze filter 36 is the airborne foreign matters of discharging from oven dry space 5 being mingled in, such as the end of a thread or dust etc. filter.
The coal gas mouth of pipe 22 is arranged on the inlet of hot-air channel 20.What spray that supply comes from the coal gas mouth of pipe 22 is coal gas.Be useful on the valve of control gas supply on the coal gas mouth of pipe 22.Symbol 23 is gas pipes among the figure.
For the coal gas that sprays from the coal gas mouth of pipe 22 is mixed with primary air, prolongation is formed with mixing tube 24 to inside in the porch of hot-air channel 20.The inlet of mixing tube 24 is corresponding with the position of the coal gas mouth of pipe 22.The extraneous air (being primary air) that coal gas that will eject from the coal gas mouth of pipe 22 in the inside of mixing tube 24 and the inlet by mixing tube flow into mixes.The front end of mixing tube 24 is provided with spark plug 26, and spark plug is used for igniting and produces spark.
But above-mentioned prior art has following defective:
1) above-mentioned technology is in drying course, and control part self can't confirm whether above-mentioned gauze filter 36 is blocked.The air of prior art oven dry 5 inside, space under the driving of exhaust blower 17, sends gauze passage 15 to through gauze filter 36 again by spout assembly 13.By said process, make to be blended in the interior foreign matter of air promptly, the end of a thread or dust etc. filter through gauze filter 36.On gauze filter 36, can filter a lot of foreign matters are arranged, make from oven dry space 5 and be obstructed to gauze passage 15 flow air, can't be smooth and easy, control part self can't confirm whether above-mentioned gauze filter 36 is blocked, in order to confirm the chocking-up degree of gauze filter, need the user directly to extract gauze filter 36 out and confirm from gauze passage 15.Therefore, prior art can't allow the user confirm the chocking-up degree of gauze filter 36 at an easy rate, causes dryer also carrying out work under the state that above-mentioned gauze filter 36 almost stops up.The air that passes through oven dry space 5 is flowed can not be smooth and easy, can't reach normal drying effect.
2) above-mentioned technology can't solve under the blocked state of gauze filter 36, for carrying out the control method of normal drying course.Blocked when gauze filter 36, air flows and has some setbacks, and causes cylinder 44 temperature inside sharply to rise.The temperature that rises makes the washings in the oven dry sustain damage easily.In addition, drying course also takes place can't normally carry out, and increases drying time, problems such as heat energy consumption figure occur, and above-mentioned technology can't solve under the blocked state of gauze filter 36, how to carry out the control method of normal drying course.
Summary of the invention
The objective of the invention is to overcome the deficiency of above-mentioned technology, provide a kind of dryer to have the chocking-up degree that in drying course, can respond to gauze filter, prevent to damage clothing and increase drying time control method.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: its structure of dryer includes external box of microvave, rotatable cylinder, gauze filter, exhaust blower assembly, heater, and externally inside one side of casing is equipped with the mainboard of controlling dryer work and the converter board of the drive source of cylinder being carried out conversion and control; Described mainboard includes control part, heater-driven portion and exhaust blower drive division; Wherein control part integral body is controlled dryer; Heater-driven portion drives heater under the control of control part; The exhaust blower drive division drives exhaust blower under the control of control part; Control part is exported the driving signal of swing roller to converter board, the driving of cylinder is controlled.
For the variable control type exhaust blower that possesses and the dryer of gauze filter, its control method comprises 5 stages substantially: the phase I: drive above-mentioned variable control type exhaust blower; Second stage: the rotary speed that monitors the said exhaust machine rises more than certain value from reference set value; Phase III: when the rotary speed of said exhaust machine rises, respond to the chocking-up degree of above-mentioned gauze filter; Quadravalence section: when the obstruction of the above-mentioned gauze filter of induction, than the rotary speed of the relative higher adjusting said exhaust machine of setting value; Five-stage: regulate heater control temperature downwards, with the driving of the rotary speed control exhaust blower of the exhaust blower of above-mentioned adjusting.
The invention has the beneficial effects as follows: because the present invention has the control device and the control method thereof of the exhaust blower rotary speed that monitors variable control, in carrying out drying course, along with the increase of exhaust blower rotary speed, the chocking-up degree of induction gauze filter or the chocking-up degree of blast pipe.Under blocked state, the ascending air flow is carried out the caloric value of regulating control heater, can best drying.The obstruction of gauze filter and blast pipe can prevent owing to can not successfully be discharged with air is that reason increases drying time.In addition, can also prevent energy dissipation that the increase by drying time causes and by the rising of temperature in the cylinder give oven dry thing band damage.
Description of drawings
Fig. 1 is the exploded perspective view of the dryer major part of prior art;
Fig. 2 is the sectional side view of dryer of the present invention;
Fig. 3 is the plane of dryer of the present invention;
Fig. 4 is the workflow diagram that the induction gauze filter stops up in the dryer of the present invention;
Fig. 5 be exhaust blower the control revolution and along with gauze filter stop up and the rising revolution between relation characteristic figure;
Fig. 6 is the relation characteristic figure of the rotation revolution of the chocking-up degree of blast pipe and exhaust blower;
Fig. 7 is the chocking-up degree of blast pipe and the relation characteristic figure of drying time;
Fig. 8 is a temperature characteristics figure in the cylinder of the present invention;
Fig. 9 and Figure 10 are the control circuit figure of heater;
Figure 11 is the control part controlling party block diagram of dryer of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention are advanced a detailed description:
The present invention is a kind of dryer, its structure as shown in the figure, external box of microvave 53 is shells of dryer.The front panel 41 of dryer is positioned at the front end of external box of microvave 53.There is rotatable cylinder 44 inside of external box of microvave 53, and the washings that 44 pairs on cylinder is dropped in cylinder 44 inside is dried.Cylinder 44 is rotated by drum driven belt 54, and drum driven belt 54 is centered around the outside of cylinder 44.
The inner face of front panel 41 has exhaust outlet 43, and exhaust outlet 43 is to the inside opening of cylinder 44.The effect of exhaust outlet 43 is that the air of cylinder 44 inside is discharged to cylinder 44 outsides.Inlet at exhaust outlet 43 is equipped with gauze filter 36, the foreign matter in gauze filter 36 filtered airs.
Side at exhaust outlet 43 is equipped with electrode sensor 38, cylinder 44 temperature inside when electrode sensor 38 is measured the oven dry operation.Electrode sensor 38 is temperature sensors, when touching washings, and the difference temperature sensor of the voltage by applying the electrode two ends.In addition, sensed signal is exported with voltage signal.
Linking on exhaust blower assembly 30 has exhaust passage 34, and exhaust passage 34 will be discharged to the outside of dryer by the air that exhaust flow path 45 is discharged.Exhaust blower assembly 30 includes exhaust blower 31, and exhaust blower 31 circulations absorb the air of cylinder 44 inside again, and the heat of the heater 42 that will illustrate below making flow in the cylinder 44, and the moisture on the clothing class is discharged to exhaust outlet 43.Exhaust blower 31 adopts the speed changeable type.
Externally casing 53 in, on the part of cylinder 44 bottom correspondences service duct 46 is housed, service duct 46 supplies air to the inside of cylinder 44.Service duct 46 is the inside that supplies air to cylinder 44 by the rear of cylinder 44.Side having heaters 42 at service duct 46.In addition, a side of service duct 46 also has temperature sensor 48, and temperature sensor 48 inductions are to above-mentioned cylinder 44 inner air supplied temperature.
A side is equipped with mainboard 52 and converter board 50 in the inside of external box of microvave 53 of the present invention.Mainboard 52 whole control dryer work, the drive source (drawing is not pointed out out) that converter board 50 is used for cylinder carries out conversion and control.Mainboard 52 includes drive division, and drive division drives and receives the electrically various parts of control in the dryer.As shown in figure 11, mainboard 52 includes control part 52a, the 52c of heater-driven portion and exhaust blower drive division 52d substantially.The whole control of control part 52a dryer; The 52c of heater-driven portion drives heater 42 under the control of control part 52a; Exhaust blower drive division 52d drives exhaust blower 31 under the control of control part 52a.Control part 52a exports the driving signal of swing roller to converter board 50, the driving of cylinder is controlled.
In the present invention, mainboard 52 also includes the structure by rotary speed induction gauze filter 36 chocking-up degrees of exhaust blower 31.So the control part 52a in the mainboard 52 can receive the rate signal of exhaust blower 31 from speed inductive pick-up (for example can use photoelectric encoder).For the velocity response sensor of responding to rotary speed is installed on the motor shaft of exhaust blower 31.
That is to say that above-mentioned mainboard 52 receives rotary speed from the photoelectric encoder of induction exhaust blower 31 rotary speeies, the rotary speed of induction exhaust blower 31.When the rotary speed of sensed exhaust blower 31 on a reference value during the rising certain value, the rotation revolution that is judged as along with the chocking-up degree exhaust blower 31 of gauze filter 36 rises.
The rotary speed of exhaust blower 31 is that the chocking-up degree with gauze filter 36 rises, and this is to rise by the little rotary speed of exhaust blower 31 that makes of air flow dynamic pressure in the inside and outside circulation of cylinder that exhaust blower 31 forms.Principle is if gauze filter 36 is blocked, and the air air quantity of circulation cylinder 44 will diminish, and the pressure that is attached on the exhaust blower 31 rotation flabellums also can diminish.Therefore the load that is attached on exhaust blower 31 motors diminishes, and the revolution of motor is risen automatically.So when the rotation revolution that is set by the exhaust blower 31 of variable control surpasses certain value, can be judged as due to gauze filter 36 chocking-up degrees.
By said structure, mainboard of the present invention 52 monitors the rotation revolution of exhaust blowers 31, on a reference value that sets during the rising certain value, and the chocking-up degree of induction gauze filter 36.When the control part 52a in the mainboard 52 of the present invention in addition senses the chocking-up degree of gauze filter 36 in drying course, for preventing to increase controlling of drying time and damage clothing.
Below the drying course in the dryer of the present invention with said structure is described.
Fig. 4 is the workflow diagram that the induction gauze filter stops up in dryer of the present invention.
At first: make the cylinder rotation.The washings of not oven dry is put into cylinder inside, make cylinder 44 rotations; That is, at first the washings of will not dry is put into the inside of cylinder 44, and the user imports oven dry operation signal then, and signal is imported on the control part 52a in the mainboard 52.Control part 52a will drive signal and output on the converter board 50, and the control drive source by converter board 50 is driven afterwards, and drum belt 54 is rotated, so drive above-mentioned cylinder 44 rotations.
Phase I: drive above-mentioned variable control type exhaust blower; That is, above-mentioned control part 52a will drive signal and export to exhaust blower drive division 52d.Exhaust blower assembly 30 carries out work, drives exhaust blower 31, by gauze filter 36 air in the cylinder 44 is discharged to exhaust passage 34.
Before and after the initial point of air, control part 52a will drive signal and export to the 52c of heater-driven portion in discharging cylinder 44.So heater-driven portion drives heater 42.
Discharge the air of cylinder 44 inside from the phase I, suck air outside to the inside of cylinder 44 by service duct 46, the heating of the heater 42 by being located at service duct 46 inlets, air is heated and forms certain temperature to cylinder 44 inner supplies.Make inhaled air be fed to the inside of cylinder 44 by above-mentioned heater 42 heating by the attraction that drives exhaust blower 31.
Moisture on the inside of cylinder 44 air supplied absorption washings under the driving of exhaust blower assembly 30, flows to exhaust flow path 45 by exhaust outlet 43.On exhaust flow path 45, discharge to the outside through exhaust passage 34 by exhaust blower assembly 30.The discharge of air is to finish by the attraction of exhaust blower 31.
At this moment pass through the air of exhaust outlet 43, be cleaned, so that do not allow the foreign substances (for example the end of a thread of washings or burr etc.) that is included in the air be sent on the said exhaust thermomechanical components 30 by gauze filter 36.
On the one hand, mainboard 52 52a of inner control portion are to the kind of oven dry thing and the value of detecting that the oven dry degree has configured electrode sensor 38.When beginning to dry operation, value of detecting of understanding oven dry species on the basis of the value of configuring.Control heater 42 operations are generated heat in addition.After heater 42 heatings, supply extraneous air to the inside of cylinder 44 by the certain temperature that is heated to that is located at the heater 42 on service duct 46 inlets.
By said process, under cylinder 44 inner loop air state, the temperature of things is dried in electrode sensor 38 inductions, and induced signal is transmitted to the control part side with voltage signal.When sensor contact oven dry thing, electrode sensor 38 utilizes the difference temperature sensor of the voltage value that imposes on the electrode two ends.Sensed in addition temperature is exported with voltage signal.
Continuation inputs to control part 52a with the influence value of electrode sensor 38, makes control part 52a judge ongoing oven dry degree with the variation of voltage value sensed in electrode sensor 38.
In said process,, pass by gauze filter 36 to the transmission of gauze passage from cylinder 44 through exhaust outlet 43 by the driving of exhaust blower 31 at the air of cylinder 44 absorbed inside moisture.In said process, the foreign matter (that is to say the end of a thread or dust etc.) that is included in the air is filtered by gauze filter 36.So filtering the gauze filter 36 of a lot of foreign matters makes from the air of cylinder 44 inside to the gauze channel flow and can't successfully flow.
At this moment for air is circulated the inside and outside of cylinder 44,, make the mobile smooth and easy of air because the mobile exhaust blower 31 that has some setbacks of air improves rotary speed.
That is to say, when above-mentioned gauze filter 36 stops up, reduce the air quantity that flows into to above-mentioned exhaust blower 31, reduce the pressure that is attached on said exhaust machine 31 flabellums, reduce the load that is attached on the motor simultaneously.Owing to reduce the load that is attached on exhaust blower 31 motors rotation revolution of motor is risen automatically.
Be installed in the velocity response sensor 52b of exhaust blower 31 motors one side, continue the rotary speed of exhaust blower 31 is imposed on control part 52a.By the signal that applies, the rotary speed of control part 52a induction exhaust blower 31.
As shown in Figure 5, along with the chocking-up degree of gauze filter 36, the revolution of exhaust blower 31 is rising.That is to say, under normal driving condition, the rotary speed of exhaust blower 31 is to set and control by 1300 rev/mins, if risen certain limit (about 230 rev/mins) when above because of the obstruction of gauze filter 36 makes the rotary speed of exhaust blower 31, is judged as due to gauze filter 36 obstructions.Be under the state of benchmark with 1700 rev/mins in addition, the rotary speed of exhaust blower 31 has risen about more than 300 rev/mins the time, is judged as due to gauze filter 36 stops up.
Second stage: the rotary speed that monitors the said exhaust machine rises more than certain value from reference set value; That is, the control part 52a of mainboard 52 inside monitors the value of detecting of velocity response sensor 52b, if also rise to certain limit when above than a reference value, will increase the rotary speed of exhaust blower 31 automatically, judges that above-mentioned gauze filter 36 is blocked.
Phase III: when the rotary speed of said exhaust machine rises, respond to the chocking-up degree of above-mentioned gauze filter; That is, be the chocking-up degree of blast pipe of utilizing the rotation revolution induction dryer inside of exhaust blower 31, in the present invention in order to respond to above-mentioned gauze filter 36 chocking-up degrees.
When the induction gauze filter stops up to a certain degree, also can control by the following method.
Fig. 6 chocking-up degree of inch unit representation blast pipe 19.Blast pipe 19 is along with elongated can not the discharge effectively of length that prolongs pipe.2.5 inches of prompting mean that the length that prolongs pipe prolongs into 20 meters situation in the drawings, and the length of 3.5 inches expression prolongation pipes prolongs into 10 meters situation.As shown in the figure, can know that along with the length that prolongs pipe is elongated the rotation revolution of exhaust blower is in increase.
Along with the obstruction of blast pipe 19, the rotation revolution of exhaust blower 31 is increasing, and the rotation revolution of exhaust blower 31 can utilize the chocking-up degree of the Back ground Information induction blast pipe 19 of judging that blast pipe 19 stops up.
Fig. 7 is the chocking-up degree of blast pipe and the relation characteristic figure of drying time.As shown in Figure 7, along with the chocking-up degree of blast pipe 19, drying time is than long relatively under the normal condition.Also just caused energy dissipation.
The rotation revolution of the exhaust blower 31 of above-mentioned variable control can be responded to the chocking-up degree of gauze filter 36 and the chocking-up degree of above-mentioned blast pipe 19.
Because foreign substances etc. are stopped up gauze filter 36 or blast pipe 19, cylinder 44 temperature inside are risen to more than the control temperature range.Fig. 8 is used to illustrate temperature characteristics figure in the cylinder of the present invention.As shown in the figure, at the normal state of carrying out the oven dry operation with because of stopping up with the state of unusual oven dry operation cylinder 44 temperature inside relatively, the cylinder internal temperature of the cylinder internal temperature during abnormal work during than operate as normal is high relatively.
Occurring under the above-mentioned abnormality, when still carrying out the oven dry operation by the rotation revolution of normal heater control temperature range and exhaust blower, the washings in the oven dry can sustain damage by Yin Gaowen.Can not carry out moisture in addition normally and discharge, drying time is increased.
In the present invention, when responding to the chocking-up degree of gauze filter 36 or responding to the chocking-up degree of blast pipe 19 by the rotation revolution of exhaust blower 31, the controlled condition of variable adjustment oven dry operation.
The quadravalence section: when responding to the obstruction of above-mentioned gauze filter, the rotary speed of regulating exhaust blower is relative higher than setting value, and the pressure of control exhaust blower revolution is risen; This is to want high control procedure when the rotation ratio of revolutions of said exhaust machine 31 is normally dried operation relatively.By exhaust blower drive division 52d, control part 52a makes the higher rising of rotation ratio of revolutions a reference value of exhaust blower 31.Therefore exhaust blower 31 rotates quickly than reference speed, so air flow amount rises, carries out the moisture of cylinder 44 inside quickly and discharges.Can prevent to increase drying time.
Five-stage: the control temperature of regulating heater 42 downwards.The control method of regulating heater control temperature downwards comprises 2 stages: the phase I: when responding to the obstruction of above-mentioned gauze filter, regulate the ON/OFF control temperature to the heater 42 of cylinder supply hot blast, should be adjusted to lower relatively than the temperature of desired value.Second stage: the driving of control heater 42.The driving stage of heater 42 is meant can carry out the caloric value that drying work reduces heater 42 in the control temperature of regulating.
Be downward adjusting of control part 52a in the mainboard 52 by heater 42 open/close control temperature.Heater 42 is generation sources of heat energy, and heater 42 is used for to the inside of cylinder 44 supply hot blast.Control part 52a responds to cylinder 44 inner air supplied temperature by the influence value of temperature sensor 48, by the air themperature that the influence value induction of temperature sensor 32 is discharged through cylinder 44, can keep the ON/OFF work of cylinder 44 needed temperature control heaters 42.
For example, when in normal drying work state, drying cotton goods, the temperature sensor 48 of induction intake air temperature detect the situation that temperature reaches 120 ± 20 ℃, or during the detecting temperature and reach 70 ± 3 ℃ of the temperature sensor 32 of induction discharged air temperature, realize that with closing of control heater 42 temperature controls.
But under the blocked state of gauze filter or blast pipe with the ON/OFF of the condition of work control heater 42 in the above-mentioned normal drying work state, as shown in Figure 8, the temperature height of cylinder 44 temperature inside than normal the time.At this moment by high temperature the washings in the drying work is sustained damage, the ON/OFF adjustment of the heater 42 in the 150th stage be become low temperature.The control in the 150th stage is to finish control by the 52c of heater-driven portion under the control of above-mentioned control part 52a.
In addition, the control part 52a in the above-mentioned mainboard 52 also can control the caloric value of heater 42 by the 52c of heater-driven portion.That is to say, be reached for the control temperature of closing heater with the caloric value of heater 42, making heater carry out ON/OFF work repeatedly increases drying time.So in order to prevent said process, when near heater 42 close condition of work the time, reduce the caloric value of heater, finally can control the closing temperature that does not allow the caloric value of heater reach heater.
Fig. 9 and Figure 10 are the control circuit figure of heater.As shown in Figure 9, (H1 in the time of H2), can close wherein any one heater to the heater in formation dryer arranged side by side, and the caloric value of heater is controlled.In addition as shown in figure 10, when one heater H 3 is controlled caloric value by the control of trigger triode T1, also can regulate the control signal of above-mentioned trigger triode T1, control the caloric value of above-mentioned heater H 3 by photoelectrical coupler PC1.
The invention provides following basic fundamental thought by said structure: in drying work, monitor the exhaust blower rotary speed of variable control, the chocking-up degree of induction gauze filter and blast pipe.When responding to the chocking-up degree of above-mentioned gauze filter and blast pipe, the higher rising of rotation ratio of revolutions a reference value of exhaust blower is risen the air mass flow of cylinder inside in addition.The caloric value of variable control heater in addition, the caloric value of control heater can not arrive the closing temperature of heater, prevents the increase of drying time.
Claims (5)
1. dryer, its structure mainly includes external box of microvave (53), rotatable cylinder (44), gauze filter (36), exhaust blower assembly (30), heater (42), it is characterized in that exhaust blower is variable control type exhaust blower, externally inside one side of casing (53) is equipped with the mainboard (52) of controlling dryer work and the converter board (50) of the drive source of cylinder (44) being carried out conversion and control; Described mainboard (52) includes control part (52a), heater-driven portion (52c) and exhaust blower drive division (52d); Wherein control part (52a) integral body is controlled dryer; Heater-driven portion (52c) is driving heater (42) under the control of control part (52a); Exhaust blower drive division (52d) is driving exhaust blower (31) under the control of control part (52a); Control part (52a) is exported the driving signal of swing roller to converter board (50), the driving of cylinder is controlled.
2. according to the dryer described in the claim 1, it is characterized in that on exhaust blower (31) motor shaft, being equipped with the velocity response sensor of induction gauze filter (36) chocking-up degree, the velocity response sensor signal device of reception exhaust blower (31) is arranged in the control part (52a) in the mainboard (52).
3. the control method of a dryer is characterized in that its control method comprised substantially as the next stage for possessing the variable control type exhaust blower in the claim 1 and the dryer of gauze filter:
At first: make the cylinder rotation, the washings of not oven dry is put into cylinder inside, make cylinder (44) rotation;
Phase I: drive above-mentioned variable control type exhaust blower;
Second stage: the rotary speed that monitors the said exhaust machine rises more than certain value from reference set value;
Phase III: when the rotary speed of said exhaust machine rises, respond to the chocking-up degree of above-mentioned gauze filter;
The quadravalence section: when responding to the obstruction of above-mentioned gauze filter, the rotary speed of regulating exhaust blower is relative higher than setting value;
Five-stage: regulate heater (42) control temperature downwards.
4. according to the control method described in the claim 3, it is characterized in that described: the control method of regulating heater control temperature downwards comprises 2 stages:
Phase I: when responding to the obstruction of above-mentioned gauze filter, regulate ON/OFF control temperature, should be adjusted to lower relatively than the temperature of desired value to the heater (42) of cylinder supply hot blast;
Second stage: the driving of control heater (42).
5. according to the control method described in the claim 4, it is characterized in that the driving stage of described control heater (42) is meant the caloric value that can carry out drying work minimizing heater (42) in the control temperature of regulating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNB021242437A CN100375818C (en) | 2002-07-12 | 2002-07-12 | Drying machine and control method thereof |
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| CNB021242437A CN100375818C (en) | 2002-07-12 | 2002-07-12 | Drying machine and control method thereof |
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| CN1467335A CN1467335A (en) | 2004-01-14 |
| CN100375818C true CN100375818C (en) | 2008-03-19 |
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| CNB021242437A Expired - Fee Related CN100375818C (en) | 2002-07-12 | 2002-07-12 | Drying machine and control method thereof |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101113869A (en) * | 2006-07-28 | 2008-01-30 | 南京乐金熊猫电器有限公司 | Drying machine |
| KR100872233B1 (en) * | 2007-04-18 | 2008-12-05 | 엘지전자 주식회사 | Dryer |
| US20110283557A1 (en) * | 2009-07-13 | 2011-11-24 | Pellerin Milnor Corporation | Modulated air flow clothes dryer and method |
| KR101589478B1 (en) * | 2009-10-05 | 2016-01-28 | 엘지전자 주식회사 | Method for controlling clothes dryer |
| CN105091929B (en) * | 2014-05-21 | 2019-07-02 | 中兴通讯股份有限公司 | A kind of detecting clogging of dust screen and system |
| CN105783209B (en) * | 2014-12-22 | 2019-06-07 | Tcl空调器(中山)有限公司 | Air conditioner and its control method |
| JP6890068B2 (en) * | 2017-08-25 | 2021-06-18 | リンナイ株式会社 | Clothes dryer |
| CN110068442A (en) * | 2019-04-18 | 2019-07-30 | 听枫智能科技(深圳)有限公司 | A kind of blocking detection method and device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2464760Y (en) * | 2001-02-20 | 2001-12-12 | 顾云标 | Energy-saving type dry washing machine |
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2002
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2464760Y (en) * | 2001-02-20 | 2001-12-12 | 顾云标 | Energy-saving type dry washing machine |
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| Publication number | Publication date |
|---|---|
| CN1467335A (en) | 2004-01-14 |
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Granted publication date: 20080319 Termination date: 20110712 |