CN1755009A - Drier and method of controlling drying for the same - Google Patents
Drier and method of controlling drying for the same Download PDFInfo
- Publication number
- CN1755009A CN1755009A CNA2005101094863A CN200510109486A CN1755009A CN 1755009 A CN1755009 A CN 1755009A CN A2005101094863 A CNA2005101094863 A CN A2005101094863A CN 200510109486 A CN200510109486 A CN 200510109486A CN 1755009 A CN1755009 A CN 1755009A
- Authority
- CN
- China
- Prior art keywords
- heater
- drying machine
- control
- cylinder
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
- F26B21/12—Velocity of flow; Quantity of flow, e.g. by varying fan speed, by modifying cross flow area
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
- F26B3/04—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour circulating over or surrounding the materials or objects to be dried
Abstract
The present invention relates to a drier, more particularly a drier and a method of controlling drying for the same for prohibiting a heater form operating with an error and controlling a quantity of a power needed drying. For the process, the present invention is to provide a device (320) for checking whether a blower (31) is normally operated or not, a plurality of heaters, and a plurality of switching devices for controlling the heaters.
Description
The application is that the name submitted on October 25th, 2002 is called the dividing an application of No. 02803310.8 application for a patent for invention of " drying machine and drying control method thereof ".
Technical field
The present invention relates to a kind of drying machine and drying control method thereof, particularly a kind of drying machine and drying control method, it can stop heater work when the drying machine fault, and can control the amount of the required electric energy of drying process.
Background technology
Fig. 1 is the exploded perspective view of the critical piece of common drying machine.Referring to Fig. 1, cylinder 1 is installed in the casing (not shown) that forms the drying machine shell.Cylinder 1 is the cylindrical shape of both ends open, forms a belt grooves 2 along the middle part of these cylinder 1 outer peripheral edges, twines a belt (not shown) on this belt grooves, and this belt is driven by other drive source.Preferably be provided with one and can carry out dry hothouse 5 therein in the inside of cylinder 1.The a plurality of baffle plates 6 of the inner formation of this hothouse.When cylinder 1 rotated, this baffle plate 6 was used to stir object to be dried.
The front and back ends of cylinder 1 is separately installed with protecgulum 7 and bonnet 9.Here, said protecgulum 7 and bonnet 9 cover the peristome of cylinder 1, thereby constitute hothouse 5, and play the effect of the front and back ends of back-up roller 1.At this moment, be embedded between protecgulum 7 and the relative rotary cylinder 1 of other parts in order to the seal 10 that prevents to leak, and between bonnet 9 and the relative rotary cylinder 1 of other parts.And, in the relevant position of cylinder 1 front and back ends a plurality of roller (not shown) are housed, be used to support this cylinder 1.
Protecgulum 7 has through hole 8, so that the inside of hothouse 5 and its exterior.This through hole 8 can be selected to open or close by a door closure (not shown).
One spout assembly 13 is installed in a side of protecgulum 7, and corresponding with the bottom of through hole 8 on the protecgulum 7.Air is discharged through spout assembly 13 from hothouse 5.Be equiped with a flock filter 14 in the spout assembly 13.Flock filter 14 is used for filtering being mixed in discharges airborne contaminant particles (for example the end of a thread or dust).
One flock pipe 15 is mounted to spout assembly 12 and communicates, and flock filter 14 is arranged on flock pipe 15 inside.Blower fan 17 is connected on the flock pipe 15, and through flock pipe 15 air is discharged hothouse 5.Blower fan 17 is installed in a Blower Housing 18 inside.One end of Blower Housing 18 communicates with flock pipe 15, and the other end is connected to a blast pipe 19.Therefore, pass the air that flock pipe 15 is discharged from hothouse 5, the effect by blower fan 17 is discharged into external environment through blast pipe 19.
Simultaneously, a warm-air pipe 20 is connected with air supply pipe 12.The effect of warm-air pipe 20 is to supply with hot-air required when carrying out drying process in hothouse 5.For this reason, warm-air pipe 20 comprises that one produces heat energy to add the structure of hot-air.
In other words, be equiped with a gas nozzle 22 in the porch of warm-air pipe 20.The effect of gas nozzle 22 is to spray into supply gas.Gas nozzle 22 comprises that one is used to control the valve (not shown) that gas is supplied with.Label 23 indications are a flue.
Extend to form a mixing tube 24 from the inlet of warm-air pipe 20 to its inside.Mixing tube 24 will mix with original air mutually from the gas that gas nozzle 22 sprays into.Here, the inlet of mixing tube 24 is arranged on and gas nozzle 22 corresponding positions.In mixing tube 24 inside, the gas that sprays into from gas nozzle 22 mixes mutually with the extraneous air (also being original gas) that the inlet by mixing tube 24 flows to.The front end of mixing tube 24 is equipped with a spark plug 26, produces the spark of igniting usefulness.Hereinafter, the structure of generation heat energy will be called heater.
A kind of structure that the drying machine of above-mentioned structure is controlled will be described below.Fig. 2 shows a kind of structure of common drying machine.
This common drying machine is arranged to carry out drying process under the control of a microcomputer 100.This common drying machine comprises: one is positioned at the drive unit 120 of drying machine electric control; One group of sensor 110 that is used to detect the signal of telecommunication; And be used for receiving detection signals, and produce control signal and to the microcomputer 100 of drive unit 120 and sensor 110 input control signals according to detection signal from sensor 110.This group sensor 110 comprises: one is used for selecting to microcomputer 100 input power supply signals, a drying process signal and by the user press key input device 103 of the drying condition imported; One electrode sensor chromacoder 106 is used for and will be converted to the readable signal of microcomputer 100 by the detected signal of electrode sensor (not shown), and with this signal of having changed input microcomputer 100, thereby detect the current aridity of clothing; One first temperature sensor signal conversion equipment 109, be used for to be converted to the readable signal of microcomputer 100 by the detected signal of the first temperature sensor (not shown), and, infeed the temperature of the hot-air in the cylinder 1 with detection with this signal of having changed input microcomputer 100.One second temperature sensor signal conversion equipment 112, be used for to be converted to the readable signal of microcomputer 100 by the detected signal of the second temperature sensor (not shown), and with this signal of having changed input microcomputer 100, to detect the temperature of the hot-air of discharging from cylinder 1.And a door closure checkout gear 115, when clothing is dried, be used to detect opening of door closure, and testing result is converted to the readable signal of microcomputer 100, and the signal input microcomputer 100 that will change.
Drive unit 120 comprises: a Rolling motor drive unit 118, be used to drive a Rolling motor (not shown), and this Rolling motor produces the driving force that cylinder 1 is rotated; One blower motor drive unit 121 is used to drive a blower motor (not shown), and this blower motor produces the driving force that blower fan 17 is rotated; And a heater driving device 124, be used for supplying with the required thermal source of drying clothes through a warm-air pipe 20.
As mentioned above, each part of drive unit 120 is by microcomputer 100 controls.
Hereinafter, will the running of the common drying machine of said structure be described.
The user at first packs clothing into the hothouse 5 of cylinder 1 with drying clothes.The user shuts door closure and selects drying mode from press key input device 103.Select signal to be transfused to microcomputer 100 accordingly with drying mode.Microcomputer 100 identifications and the drying mode of selecting the corresponding drying machine of signal.If the user has selected drying mode, microcomputer 100 can head roll motor driver 118.When Rolling motor drive unit 118 was driven, the belt that twines along belt grooves 2 rotated by other drive source driving, therefore, and cylinder 1 rotation.
Microcomputer 100 is to fan drive device 121 input control signals, thus the driving blower motor.If blower motor is driven, just running of blower fan 17.Blower fan 17 is discharged air outside the hothouse through flock pipe 15.If the air in the hothouse 5 is discharged from, extraneous air is just introduced in the hothouse 5 through air supply pipe 12.
Simultaneously, microcomputer 100 drives heater driving device 124.Therefore, the air that heater driving device 124 heating are introduced when the air of introducing passes warm-air pipe 20, will improve the temperature of introducing air.Because the control of heater driving device 124, microcomputer 100 drives valves, with control via gas nozzle 22 gas supplied amounts, and the ignition operation of control spark plug 26.When microcomputer 100 by-pass valve controls and spark plug 26, the air themperature of introducing hothouse 5 is controlled basically.Know clearly it, if gas injects mixing tubes 24 via gas nozzle 22, the gas that sprays into is lighted by spark plug 26, then burning.At this moment, along with the burning of air, produce heat energy.Heat energy heats the air of introducing in the hothouse 5, thereby produces hot-air.
Hot-air supplies to the hothouse 5 that is arranged in the cylinder 1 via air supply pipe 12.Hot-air absorbs the moisture that is contained in the clothing, discharges hothouse 15 through spout assembly 13 then.The discharge of air is to finish by the suction of blower fan 17.The air of discharging from spout assembly 13 is through flock filter 14, thereby contaminant particles such as dust or the end of a thread are filtered.
When clothing was dry with a kind of like this hot-air circulation mode, microcomputer 100 was determined clothes drying degree according to the detected value of electrode sensor chromacoder 106.In addition, finally determine clothes drying degree according to the temperature of the hot-air of introducing/the discharges cylinders 1 that detect by the first and second temperature sensor signal conversion equipments 109 and 112 respectively, and control drying process.
Yet there is following problem in the common drying machine of said structure.
Common drying machine utilization drives the suction of blower fan 17 generations and finishes the circulation of air in cylinder 1 inner/outer, and the control hot-air enters cylinder 1.Therefore, blower fan 17 is driven under the state of heater generation heat energy.
If blower fan 17 can not run well, although the internal temperature of cylinder 1 can not be realized circulation of air owing to the heat energy that heater produces continues to increase between cylinder 1 inside and the outside.Correspondingly, because cylinder 1 internal temperature continues to increase, Gan Zao clothing can be damaged, and can cause part to be caught fire.In addition, because the coil in the heater continues to produce high heat, can shorten the life-span of heater.
Simultaneously, under the drying machine drying mode, when determining to need to drive heater, microcomputer 100 is by heater driving device 124 control heater work.At this moment, common drying machine does not comprise the protection structure whether microcomputer 100 definite blower fans 17 are run well.In this common drying machine, drive blower motor behind a setting-up time from microcomputer 100, microcomputer 100 control heater work.
Therefore, common drying machine does not have can make the out-of-work protection structure of heater when blower fan 17 breaks down.So common drying machine exists because some unit failure and problem on fire suddenly.And, owing to these problems, reduced the reliability of drying machine.Moreover user's safety may be on the hazard, and has brought fatal defective for this drying machine.
Simultaneously, Fig. 3 a and 3b show heater carries out drive controlling by microcomputer 100 schematic diagram.
As shown in the figure, heater utilizes relay and TRIAC to realize control.Yet there are the following problems for this control mode.
Shown in Fig. 3 a, relay R Y1 and RY2 are connected in series on heater H 1 and the H2, and a pair of relay and heater are in parallel to relay and heater with another.Therefore, although the multistage operating of heater can be controlled by the ON/OFF of relay, it is impossible that the power output of heater is carried out variable control.
In addition, referring to Fig. 3 b, the control of heater can realize as TRIAC T1, silicon controlled rectifier (SCR) (SCR) and a solid-state relay (SSR) by using a power device.This structure can variable control heater H3 power output.Yet,, just must use cooling fan to solve the heating of power device if the power of heater is very big.
In other words, in common drying machine, under the situation of heater with relay control, it is impossible that the power output of heater is done variable control.Under the situation of heater, exist as needing to adopt the problem of the configuration aspects of cooling fan with the solution heating with TRIAC control.In this case, the problem that also exists manufacturing cost to increase.
Summary of the invention
Therefore, the present invention relates to a kind of drying machine and drying control method thereof, it has fully avoided one or more problems of causing owing to the limitation of prior art and defective.
One object of the present invention is to provide a kind of drying machine and control method thereof, and it can allow heater to work according to the driving condition of blower fan, thereby obtains stable duty.
Another object of the present invention is to provide a kind of drying machine and control method thereof, it can change the power output of heater.
Other advantage, purpose and feature of the present invention partly provides in explanation subsequently, partly can obviously find out from following explanation for those of ordinary skills, maybe can draw from enforcement of the present invention.Purpose of the present invention and other advantage can be understood, obtain from the structure that following written explanation, claim and accompanying drawing provide especially.
For realizing these and other advantages and according to purpose of the present invention, broadly described as embodiment institute, it provides a kind of drying machine, comprising: be installed in rotation on the cylinder on the drying machine, be used for object to be dried is packed in it; One is used to make the blower fan of the circulation of air in the cylinder; One heater is used for the running according to blower fan, and the air in the cylinder is introduced in heating; And an operation detection device, be used to detect the rotating speed of blower fan, and according to testing result, the control heater.
According to purpose of the present invention is further to realize these and other advantage, and it provides a kind of drying machine, comprising: be installed in rotation on the cylinder on the drying machine, be used for object to be dried is packed in it; One heater is used to heat the air of introducing in the cylinder; And a control device, be used for determining to supply with the quantity of power of heater, and according to measurement result control heater, wherein heater comprises according to object to be dried: at least two heaters, it produces heat according to the control of control device respectively; And the drive unit that is used to drive heater.
According to purpose of the present invention, be further to realize these and other advantage, it provides a kind of drying control method of drying machine, and wherein drying machine comprises: be installed in rotation on the cylinder on the drying machine, be used for object to be dried is packed in it; And the blower fan that is used to make the circulation of air in the cylinder, this drying control method comprises the steps: to make under drying mode blower fan to rotate; Detect the rotating speed of blower fan; And according to testing result, the heating of the air in the cylinder is introduced in control.
According to purpose of the present invention, be further to realize these and other advantage, it provides a kind of drying control method of drying machine, and wherein drying machine comprises: be installed in rotation on the cylinder on the drying machine, be used for object to be dried is packed in it; And one be used to heat the heater of introducing the air in the cylinder.This drying control method comprises the steps: to determine the amount of electric energy according to object to be dried; According to measurement result, control a plurality of heaters respectively, these a plurality of heaters are included in the heater.
Understand easily, above-mentioned general description and detailed subsequently description all are exemplary and illustrative, and will be to the invention provides further explanation as what claimed.
Description of drawings
The accompanying drawing that is provided can provide further understanding of the invention, and the part of book as an illustration in being comprised in, and it shows embodiments of the invention, and and specification one be used from and explain principle of the present invention.
Among the figure:
Figure 1 shows that the exploded perspective view of the critical piece of common drying machine;
Figure 2 shows that the structure of common drying machine;
Fig. 3 a and 3b are depicted as the structure of common heater;
Fig. 4 is the lateral cross-sectional view according to a kind of drying machine of the present invention;
Fig. 5 is the plane according to drying machine of the present invention;
Figure 6 shows that structure according to the drying machine of one embodiment of the invention;
Figure 7 shows that the operate as normal checkout gear of blower motor shown in Figure 6;
Fig. 8 is the flow chart that is used to explain according to the course of work of drying machine of the present invention;
Figure 9 shows that the structure of drying machine according to another embodiment of the present invention;
Figure 10 shows that structure according to heater of the present invention; And
Figure 11 shows that the curve map of the characteristic of expression heater of the present invention.
Detailed Description Of The Invention
Now the embodiment shown in reference to the accompanying drawings is to a preferred embodiment of the present invention will be described in detail.
Figure 4 and 5 show the structure of a kind of drying machine that proposes according to the present invention.
Referring to Figure 4 and 5, drying machine of the present invention has the shell 53 of its outer shell of formation.One header board 41 is connected with the front end of shell 53, constitutes the front of drying machine.Cylinder 44 is installed in rotation on shell 53 inside, the cylinder 44 and dry within it thereby clothing can be packed into.By being looped around a drum driven belt 54 of cylinder 44 outer surfaces, make cylinder 44 rotations.
The corresponding steam vent 43 that is formed with the inner surface of header board 41, open its inside towards cylinder 44.The effect of steam vent 43 is that air is discharged cylinder 44.Be provided with a flock filter 36 in the porch of steam vent 43, to remove the contaminant particles that contains in the air.
On the part of steam vent 43, be provided with an electrode sensor 38, be used for when drying clothes, detecting the aridity of cylinder 44 clothings.When clothing contacted with electrode 38, electrode sensor 38 detected the aridity of clothing according to the voltage difference that puts on electrode two terminals.Electrode sensor 38 is imported detection signals with the form of voltage signal to a microprocessor 100.Exhaust passage 45 is positioned at header board 41, so that link to each other with steam vent 43.The fan assembly of installing 30 communicates with exhaust passage 45.Exhaust passage 45 comprises second temperature sensor 32, is used to detect the temperature of the air of discharging cylinder 44.
Be used for being located in the shell 53 air supply pipe 46 that air infeeds in the cylinder 44 and corresponding position, cylinder 44 bottoms.Air supply pipe 46 infeeds air in the cylinder 44 through cylinder 44 rear portions.Heater 42 is arranged on the part of air supply pipe 46.Temperature sensor 48 is arranged on another part of air supply pipe 46, is used to detect the temperature that sucks the air in the cylinder 44.
This group sensor 210 comprises: press key input device 201, the drying condition input microcomputer 200 that is used for that power supply supplied with signal, dry working signal and is selected by the user to import; Electrode sensor chromacoder 202 is used for and will be converted to the readable signal of microcomputer 200 by electrode sensor 38 detected signals, and with this signal of having changed input microcomputer 200, thereby detect clothing aridity at that time; The first temperature sensor signal conversion equipment 203 is used for and will be converted to the readable signal of microcomputer 200 by first temperature sensor, 48 detected signals, and with this signal of having changed input microcomputer 200, supplies to the temperature of the hot-air in the cylinder 44 with detection.The second temperature sensor signal conversion equipment 204 is used for and will be converted to the readable signal of microcomputer 200 by second temperature sensor, 32 detected signals, and with this signal of having changed input microcomputer 200, to detect the temperature of the hot-air of discharging from cylinder 44.And a door closure checkout gear 205, when clothing is dried, be used for opening of detecting gate, and testing result is converted to the readable signal of microcomputer 200, and with this signal input microcomputer of having changed 200.
Operate as normal checkout gear 230 comprises: speed detector 300 is used to produce and the corresponding frequency signal of the speed of blower fan 31, to detect the rotating speed (RPM) of blower fan 31; Frequency 310 is used to produce the proportional voltage signal of exporting with speed detector 300 of frequency signal; And a comparator 320, be used for and will compare, with definite blower fan 31 operate as normal whether from voltage signal and a critical value of frequency 310 outputs.
Result's output valve and controlling value that microcomputer 200 provides is controlled based on the comparison according to comparator 320 for heater driving device 208.The speed detector 300 that is provided with utilizes, and produces and the corresponding frequency signal of the rotating speed of blower fan 31 as photoelectric encoder.
The frequency signal that speed detector 300 produces is imported in the frequency 310.Frequency 310 outputs one and the proportional voltage signal of importing of frequency signal.By this way, can detect and the corresponding voltage of the rotating speed of blower fan 31.
In comparator 320, the value that detects during with blower fan 31 operate as normal is as critical value.
If comparator 320 has been exported the whether decision content of operate as normal of blower fan 31, then heater driving device 208 is controlled according to this decision content.
In other words, as shown in Figure 7, heater driving device 208 comprises the output according to operate as normal checkout gear 230, carries out the PNP transistor Q1 of switching manipulation, a NPN transistor Q2 by microcomputer 200 controls, and the relay 330 of a driving heater 42.This PNP transistor Q1, relay 330 and NPN transistor Q2 series connection.
Have only when two switching device Q1 and Q2 connect, electric current just can affact on the relay 330, drives heater 42 then.
Hereinafter, will the course of work of the drying machine of said structure be described.
Fig. 8 is a flow chart, is used for explaining the stable driving work of drying machine heater of the present invention.
Referring to Fig. 8, user's cylinder 44 of at first clothing being packed into is to carry out cloth drying.The user closes door closure, and selects drying mode by press key input device 201.Select signal to be input in the microcomputer 200 accordingly with drying mode.Microcomputer 200 is discerned the drying mode of drying machine according to selecting signal, and output roller drives signal to Rolling motor drive unit 206.When the Rolling motor (not shown) started, drum driven belt 54 rotated, and correspondingly, cylinder 44 was rotated.
Be discharged from air cylinder 44 time point preceding and after, microcomputer 200 outputs to heater driving device 208 with the heater-driven signal.NPN transistor Q2 shown in Figure 7 switches to on-state according to the heater-driven signal.At this moment, the PNP transistor Q1 of heater driving device 208 keeps off-state.Therefore, although the heater-driven signal is exported from microcomputer 200, heat driven device 208 is cisco unity malfunction still.
Simultaneously, if blower fan 31 begins to drive, speed detector 300 detects the rotating speed correspondent frequency signal (S100) with blower fan 31.Frequency 310 is converted to detected frequency signal and detected frequency signal corresponding voltage signal (S110).Comparator 320 compares (S120) with this voltage signal and a critical value.If voltage signal is greater than critical value, comparator 320 is exported a low signal, thereby connects PNP transistor Q1 (S130).When PNP transistor Q1 connects and microcomputer 200 when the heater-driven signal is input to NPN transistor Q2, form from supply voltage Vdd to transistor Q1 and the current path of Q2 and relay 330.Therefore, heater 42 operate as normal.Simultaneously, if voltage signal is not more than critical value, then 320 of comparators are exported a high signal, thereby make NPN transistor Q2 keep off-state (S140).Therefore, although microcomputer 200 is input to the NPN transistor Q2 of heater driving device 208 with the heater-driven signal, 330 current path disconnects from supply voltage Vdd to relay.As a result, heater 42 cisco unity malfunctions.In other words, though blower fan 31 rotating speeds are increased to when being higher than established standards, comparator 320 is exported the heater-driven signals, and when blower fan 31 rotating speeds were lower than this established standards, comparator 320 can be exported the driving of a signal cut heater 42 again.Along with from supply voltage Vdd to transistor Q1, Q2 with the formation of the current path of relay 330, if heater driving device 208 operate as normal, then heater 42 is driven, thereby produces the necessary heat energy of dry work.
When blower fan 31 was discharged cylinder 44 with air, outside air was inhaled into cylinder 44 via air supply pipe 46.Because the heat that the heater 42 in air supply pipe 46 porch produces, when air when external environment is introduced cylinder 44, be heated to design temperature.That is, the air that under the suction of blower fan 31, is introduced into, before it was admitted to cylinder 44, heater 42 heated it.
After introducing cylinder 44, air absorbs moisture from clothing, flow to exhaust passage 45 through steam vent 43 then.Blower fan drives according to the operation of fan assembly 30, and under the suction of blower fan 31, the moisture that is comprised in the air is discharged in the external environment.After air flows to exhaust passage 45, be discharged into external environment via blast pipe 34.The suction of blower fan 31 makes air discharge by steam vent 43 from cylinder 44.The air that flock filter 36 purifies by steam vent 43, thus the contaminant particles that is comprised in the air (for example the end of a thread of clothing and fine hair) can not be sent to fan assembly 30.
Simultaneously, microcomputer 200 has a plurality of step values that are provided with according to the type and the aridity thereof of object to be dried, and, by electrode detection device 38 detected values and these step values are compared, discern the aridity of current object.For example, for the cotton material, microcomputer 200 has five steps, and the temperature difference of each step is 1 ℃.And, can set suitable temperature to each step.Therefore, if detected value is corresponding with step 2, microcomputer 200 will think object aridity not enough.
Therefore, microcomputer 200 control heaters 42 continue to produce heat.Because at the heat that air supply pipe 46 porch heaters 42 produce, the outside air of introducing cylinder 44 through air supply pipe 46 is heated to predetermined temperature, sends into then in the cylinder 44.
The detected value of electrode sensor 38 is through electrode sensor chromacoder 202 input microcomputers 200.Microcomputer 200 is determined the aridity of clothing according to the variation of electrode sensor 38 detected voltage values.
In addition, microcomputer 200 utilizes first temperature sensor 48 to reach by the first temperature sensor signal conversion equipment, 203 detected signals, detection supplies to the temperature of the hot-air in the cylinder 44, and utilize second temperature sensor 32 to reach, detect from the temperature of the hot-air of cylinder 44 discharges by the second temperature sensor signal conversion equipment, 204 detected signals.In other words, microcomputer 200 will comprehensively be judged by electrode sensor 38 detected values and introduce the temperature of cylinder 44/ from the hot-air of cylinder 44 discharges, to determine the aridity of clothing.When comprehensive judgment value reached a setting value, the signal of the NPN transistor Q2 of heater driving device 208 was arrived in microcomputer 200 sever supplies, thereby stopped the work of heater 42.
Except that stopping heater 42 work, microcomputer 200 also cuts off the blower fan driving signal that is supplied to blower motor drive unit 207 by microcomputer 200.The output of operate as normal checkout gear 230 also becomes a high signal.The output of operate as normal checkout gear 230 detects the rotating speed of blower fan 31, produces control signal, so that heater driving device 208 becomes a high signal.According to this high signal, the PNP transistor Q1 of heater driving device 208 switches to off-state.
As mentioned above, because two transistor Q1 and Q2 switch to off-state, heater 42 promptly stops to produce heat.
In brief, the present invention detects the rotating speed (RPM) of blower fan 31, with monitoring blower fan 31 operate as normal whether.Do not need to consider the control of 200 pairs of heater driving devices 208 of microcomputer, just can determine whether blower fan 31 is working properly.In other words, microcomputer 200 can be realized dual control, that is, in the ordinary course of things to the control of heater 42 and under blower fan 31 non-normal working situations to the control of heater 42.
Fig. 9 is the structure of drying machine according to another embodiment of the present invention.
Referring to Fig. 9, drying machine have one group with Fig. 6 in the sensor 210 that is equal to of sensor, and the drive unit 220 different with the drive unit among Fig. 6.
This heater driving device 208a of Ti Chuing is connected as shown in figure 10 with 208b according to another embodiment of the present invention.
Below, the work of the drying machine of the present invention of said structure is described.
User's cylinder 44 of at first clothing being packed into is with drying clothes.The user closes door closure, and selects drying mode by press key input device 201.In the corresponding selection signal input of drying mode microcomputer 200.Microcomputer 200 is discerned the drying mode of drying machine according to selecting signal, and the drum driven signal is outputed to Rolling motor drive unit 206.When Rolling motor started, drum driven belt 54 rotated, and makes cylinder 44 corresponding rotations.
Simultaneously, when selecting the signal input, microcomputer 200 drives signal with blower motor and outputs to blower motor drive unit 207.Fan assembly 30 drives signal according to blower motor and works, and the running of electric machine assembly 30 drives blower fan 31.If blower fan 31 is driven, the air in the cylinder 44 is discharged to blast pipe 34 through flock filter 36.
The time point that air in cylinder 44 is discharged from preceding and after, microcomputer 200 output heater-driven signals are given heater driving device 208a and 208b.Microcomputer 200 is determined the power output of the necessary heater 42 of output heater-driven signal.In other words, must change control according to the type and the aridity thereof of the object to be dried of packing into to heater 42 power outputs.
Therefore, microcomputer 200 is determined the amount of the electric energy of heater 42, and makes one or two work among at least two heater 208a and the 208b.A 208a among heater 208a and the 208b produces the electric energy of constant basis by the action of relay 400.Another heater 208b is according to the handover operation of TRIAC 410, the electric energy of the amount of changing.
In other words, microcomputer 200 is by the handover operation degree of photoelectricity TRIAC 420 control TRIACs 410.Handover operation by TRIAC 410 is controlled the total amount that supplies to the power supply service voltage on the heater 208b, thus the power output of control heater 208b.
Figure 11 is the curve map according to the duty corresponding output power of two heater driving devices of the present invention.
Referring to Figure 11, under the situation that at least two heater 208a, 208b work simultaneously, available power output reaches 6000W, and by controlling the phase place of TRIAC 410, may obtain necessary heat energy when power output is lower than 3000W.3000W can obtain by the phase place and the while engage relay 400 of control TRIAC 410 to the power output of 6000W.By this way, the control of relay 400 and/or TRIAC 410 can drive heater 42, can produce the necessary an amount of heat energy of drying process equally.
When the heat energy that produces because of the in check heater 208a of the amount of electric energy and 208b when the object of packing into was dried, microcomputer 200 was according to the aridity of the variation judgment object of electrode sensor 38 detected voltages.
In addition, microcomputer 200 also utilizes first temperature sensor 48 to reach by the first temperature sensor signal conversion equipment, 203 detected signals, detection supplies to the temperature of the hot-air in the cylinder 44, and utilize temperature sensor 32 to reach, detect from the temperature of the hot-air of cylinder 44 discharges by the second temperature sensor signal conversion equipment, 204 detected signals.In other words, microcomputer 200 will comprehensively be judged by electrode sensor 38 detected values and introduce the temperature of cylinder 44/ from the hot-air of cylinder 44 discharges, to determine the aridity of clothing.When comprehensive judgment value reached setting value, microcomputer 200 stopped the work of heater 208a and 208b.
Except that stopping heater 42 work, microcomputer 200 also cuts off the blower fan driving signal that is offered blower motor drive unit 207 by microcomputer 200.The blower fan drive signal interruption is cut off the electric energy to blower fan 31, thereby blower fan 31 is stopped.
Commercial Application
The present invention can allow heater work when blower fan rotates with normal speed or more speed, thereby may stably control the heater that produces high heat energy.Particularly, by preventing fault that heater is worked or the fault that causes by extraneous factor under electronic-controlled installation control, the damage of heater and all can avoid to the damage of clothing.And by the stabilized driving of heater, the present invention can also obtain better reliability.
In addition, the present invention includes at least two powerful heaters.A heater utilizes the device of relay and so on to produce constant power, and other heater utilizes the power device of TRIAC and so on to the variable control of the output of heater.Therefore, connect heater, and, can obtain required high power heat energy by the variable control power output of TRIAC by control relay.As a result, the whole power output of heater can obtain variable control in global extent.
Although invention has been described with reference to the preferred embodiments and illustration, obviously, for a person skilled in the art, under the prerequisite that does not deviate from the spirit and scope of the present invention, can make various changes and variation to the present invention.Therefore, various change of the present invention, the content that changes by appending claims and equivalent thereof contain.
Claims (8)
1. drying machine comprises:
Cylinder, described cylinder is installed in rotation on the described drying machine, is used for object to be dried is packed into wherein;
Heater, described heater are used to heat the air of introducing in the described cylinder; And
Control device the amount according to the definite electric energy that will provide of object to be dried is provided, and according to measurement result, controls described heater,
Wherein said heater comprises:
At least two heaters, the control according to described control device produces heat respectively; And
Drive unit is used to drive described heater.
2. drying machine according to claim 1, the primary heater in wherein said at least two heaters produces heat with the constant basis of electric energy, and secondary heater produces heat with the variable of electric energy.
3. drying machine according to claim 2, wherein said drive unit comprises:
First switching device is used to control the constant basis generation heat of described primary heater with electric energy; And
The second switch device is used to control the variable generation heat of described secondary heater with electric energy.
4. drying machine according to claim 3, wherein said first switching device adopts a relay.
5. drying machine according to claim 3, wherein arbitrary described second switch device has TRIAC, and another device has the photoelectricity TRIAC that is used to control described TRIAC switching.
6. drying machine according to claim 5, wherein said photoelectricity TRIAC is according to the control of described control device, control the change action of described TRIAC, and described TRIAC switches the power supply of described secondary heater and described secondary heater according to the control of described photoelectricity TRIAC.
7. the drying control method of a drying machine, described drying machine comprises: cylinder, described cylinder is installed in rotation on the described drying machine, is used for object to be dried is packed into wherein; And a heater, described heater is used to heat the air of introducing in the described cylinder, and described drying control method comprises the steps:
According to object to be dried, determine electric flux; And
According to definite result, control a plurality of heaters respectively, described a plurality of heaters comprise described heater.
8. drying control method according to claim 7, the step of wherein controlling described a plurality of heaters respectively are to realize with the constant basis of electric energy and/or with the variable quantity generation heat of electric energy by controlling described a plurality of heater.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2001-0066076A KR100461637B1 (en) | 2001-10-25 | 2001-10-25 | Method and device for controlling heater in dryer |
| KR2001/66076 | 2001-10-25 | ||
| KR2001/66077 | 2001-10-25 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB028033108A Division CN1308535C (en) | 2001-10-25 | 2002-10-25 | Method and device for controlling heater of drier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1755009A true CN1755009A (en) | 2006-04-05 |
Family
ID=36688542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2005101094863A Pending CN1755009A (en) | 2001-10-25 | 2002-10-25 | Drier and method of controlling drying for the same |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100461637B1 (en) |
| CN (1) | CN1755009A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI395938B (en) * | 2008-12-22 | 2013-05-11 | Taiwan Textile Res Inst | Gas mixing apparatus |
| CN103537103A (en) * | 2013-06-07 | 2014-01-29 | 韩小东 | Circulation-heating spraying system with product switching function |
| CN104894822A (en) * | 2010-01-06 | 2015-09-09 | 三星电子株式会社 | Clothing dryer and control method thereof |
| CN107630341A (en) * | 2017-10-25 | 2018-01-26 | 无锡小天鹅股份有限公司 | Heat detection means, blower fan and device for clothing processing |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101253150B1 (en) * | 2006-04-17 | 2013-04-10 | 엘지전자 주식회사 | clothes drier and controlling methode for the same |
| KR101253181B1 (en) | 2006-12-26 | 2013-04-10 | 엘지전자 주식회사 | Dryer and Driving Method Thereof |
| KR20180085201A (en) * | 2017-01-18 | 2018-07-26 | 삼성전자주식회사 | A dryer and a method for controlling the same |
| CN112747464B (en) * | 2020-11-25 | 2022-07-12 | 温州职业技术学院 | Heating device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3064660B2 (en) * | 1992-04-23 | 2000-07-12 | 松下電器産業株式会社 | Clothes dryer |
| JP3064699B2 (en) * | 1992-10-28 | 2000-07-12 | 松下電器産業株式会社 | Clothes dryer |
| JP3744098B2 (en) * | 1997-01-30 | 2006-02-08 | 松下電器産業株式会社 | Gas clothes dryer |
-
2001
- 2001-10-25 KR KR10-2001-0066076A patent/KR100461637B1/en not_active IP Right Cessation
-
2002
- 2002-10-25 CN CNA2005101094863A patent/CN1755009A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI395938B (en) * | 2008-12-22 | 2013-05-11 | Taiwan Textile Res Inst | Gas mixing apparatus |
| CN104894822A (en) * | 2010-01-06 | 2015-09-09 | 三星电子株式会社 | Clothing dryer and control method thereof |
| CN103537103A (en) * | 2013-06-07 | 2014-01-29 | 韩小东 | Circulation-heating spraying system with product switching function |
| CN103537103B (en) * | 2013-06-07 | 2015-03-25 | 韩小东 | Circulation-heating spraying system with product switching function |
| CN107630341A (en) * | 2017-10-25 | 2018-01-26 | 无锡小天鹅股份有限公司 | Heat detection means, blower fan and device for clothing processing |
| CN107630341B (en) * | 2017-10-25 | 2020-01-21 | 无锡小天鹅电器有限公司 | Heating detection device, fan and clothes treatment device |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20030033895A (en) | 2003-05-01 |
| KR100461637B1 (en) | 2004-12-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1308535C (en) | Method and device for controlling heater of drier | |
| CN1184370C (en) | Clothing dryer | |
| CN2740644Y (en) | Clothing drier | |
| EP1652993A2 (en) | Dryer and method for controlling the same | |
| CN1755009A (en) | Drier and method of controlling drying for the same | |
| CN1580380A (en) | Method for controlling clothing drier | |
| CN1460141A (en) | Method and device for heater control in drying apparatus | |
| CN1308525C (en) | Washing machine with clothes-drying function | |
| CN1701145A (en) | Conduit with improved electric heating element and clothes drying machine provided with such a conduit | |
| CN1125307C (en) | Rolling drier | |
| CN100375818C (en) | Drying machine and control method thereof | |
| KR101542497B1 (en) | Apparatus and method for cutting off overvoltage of dryer | |
| KR100756446B1 (en) | Control method for lint filter | |
| KR100702992B1 (en) | Control method for dryer | |
| CN1510204A (en) | Safety gas shut-off device of drier and method thereof | |
| CN1510370A (en) | Heater of drier and controlling method thereof | |
| CN1467013A (en) | Stopping degree sensing method of gauze filter | |
| AU2004208685B2 (en) | Drier and method of controlling drying for the same | |
| CN100503957C (en) | Condensing clothes drier and its control method | |
| CN1325867C (en) | Drier controlling method | |
| JPH0780195A (en) | Clothes dryer | |
| CN1510375A (en) | Heater controller of drier | |
| KR900008389Y1 (en) | Blower for fan heater | |
| JPH06134191A (en) | Clothes drier | |
| CN1779051A (en) | Running control for dry-wash procedure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |