JP2020080943A - Drying machine - Google Patents

Abstract

To provide a drying machine capable of enhancing drying efficiency and shortening drying time of cloths by cleaning a filter before the next time drying operation is started.SOLUTION: When a cleaning operation of a filter after the end of a drying operation is finished (Step S2), a wrinkle prevention operation is started (Step S3). Next, when the wrinkle prevention operation is finished (Step S4), by a second filter cleaning operation function, a control device actuates from various types of means and the like, and the filter cleaning operation after the end of the wrinkle prevention operation is started (Step S5).SELECTED DRAWING: Figure 8

Description

The present invention relates to a dryer equipped with a filter cleaning device for removing lint adhering to a filter.

BACKGROUND ART Conventionally, there is known a dryer in which a lint removing operation is automatically performed after a drying operation for drying clothes is completed in order to remove lint separated from clothes or the like (Patent Document 1).

Further, there is known a drum-type washer/dryer having a drying function, which executes a soft-keeping operation for a predetermined time after the completion of a drying process and before the power is turned off (Patent Document 2). Here, the soft keep operation is to lower the temperature of the clothes and to suppress the generation of wrinkles by the time the dried clothes are taken out, and while operating the blower with the heating means stopped, It means the operation of rotating the drum from time to time.

JP, 2015-229006, A Japanese Patent No. 6339261

However, since the mechanisms for removing lint in the dryers described in Patent Documents 1 and 2 above attach lint to the filter installed in the circulation air passage, they adhere to the filter during softkeeping operation. If the lint is left unattended and the filter is not cleaned before the next drying operation is started, the lint will clog the filter and reduce the air volume in the circulation air passage, thus reducing the drying efficiency. There was a problem of doing.

The present invention is to solve the above-mentioned conventional problems, by cleaning the filter before the next drying operation is started, it is possible to improve the drying efficiency and shorten the drying time of the cloths. The purpose is to provide a dryer.

In order to solve the above-mentioned conventional problems, the invention of the dryer according to claim 1 includes a housing, an inner tank for storing cloths, a first drive source for rotating or rotating the inner tank, An inlet for introducing cloth into the inner tank, an outer lid for closing the inlet, a circulation air passage arranged so as to circulate and supply air to the inner tank, and a blowing means for blowing air in the circulation air passage A filter cleaning device provided in the circulation air passage, a drying operation function for drying the cloth, and a wrinkle by blowing air to the cloth in the inner tank after the drying operation by the drying operation function is completed. In a drier having a wrinkle prevention operation function, the filter cleaning device captures the lint generated from the cloth, a dust remover that removes the lint from the filter, and the dust remover. A second drive source for moving the first drive source, and the dryer has a first filter cleaning operation function of performing a filter cleaning operation of moving the dust remover after completion of the drying operation; It has a 2nd filter cleaning operation function which implements filter cleaning operation, It is characterized by the above-mentioned.

In the invention of claim 1, the second filter cleaning operation function can clean the filter in the circulation air passage after the wrinkle prevention operation is completed, so that the filter can be prevented from being clogged, and the next drying operation can be performed. Since lint is not attached to the filter at the start, it is possible to prevent a decrease in the air volume in the circulation air passage, improve the drying efficiency, and shorten the drying time of the cloth.

According to a second aspect of the present invention, in the first aspect of the present invention, the circulating air passage has an air volume detecting means, and the air volume detecting means reduces the air volume in the circulating air passage below a predetermined value. When it is detected, the second filter cleaning operation function is performed to perform the filter cleaning operation. Therefore, after the end of the wrinkle prevention operation, when the air volume in the circulation air passage becomes lower than the predetermined value, the filter cleaning operation can be reliably performed by the second filter cleaning operation function.

According to a third aspect of the present invention, there is provided a dryer according to the first aspect, further comprising a rotation or rotation detecting means for the inner tank, and when the rotation or rotation detecting means detects the end of the rotation operation or the rotation operation. In addition, the filter cleaning operation is performed by the second filter cleaning function. Therefore, when the rotation or rotation detecting means of the inner tank detects the end of the rotation operation or the rotation operation after the wrinkle prevention operation is completed, the filter cleaning operation should be surely performed by the second filter cleaning operation function. You can

According to a fourth aspect of the present invention, in the invention of the first aspect, there is a cloth detection means in the inner tank, and when the cloth detection means detects that there is no cloth in the inner tank, It is characterized in that the filter cleaning operation is performed by the second filter cleaning function. Therefore, when the cloth detection means detects that there is no cloth in the inner tank after the wrinkle prevention operation is completed, the filter cleaning operation can be reliably performed by the second filter cleaning operation function.

According to the invention of a dryer of claim 5, in the invention of claim 1, a heating means for heating air in the circulation air passage of the dryer at the time of the wrinkle prevention operation and a temperature detection means in the inner tank or the circulation air passage. And, when the temperature detection means detects that the temperature in the inner tank or the circulation air passage has dropped below a predetermined value, performs a filter cleaning operation by the second filter cleaning operation function. Is characterized by. Therefore, after the wrinkle prevention operation is completed, when the temperature in the inner tank or the circulation air passage falls below the predetermined value by the temperature detection means, the second filter cleaning operation function is surely performed to perform the filter cleaning operation. be able to.

According to a sixth aspect of the present invention, there is provided a dryer according to the first aspect, further comprising a lock mechanism that holds a closed state of the outer lid and a lock mechanism detection unit that detects a locked state of the lock mechanism. It is characterized in that the filter cleaning operation is performed by the second filter cleaning function when the unlocking of the outer lid is detected by the mechanism detecting means. Therefore, when the lock mechanism detecting means detects the unlocking of the outer lid after the wrinkle prevention operation is completed, the filter cleaning operation can be reliably performed by the second filter cleaning operation function.

According to a seventh aspect of the present invention, there is provided a dryer according to the first aspect, further comprising a control mechanism for electrically controlling the dryer and an operation time detecting means for detecting an operation time of the control mechanism. The second feature is that the filter cleaning operation is performed by the second filter cleaning function when the detection unit detects the lapse of the predetermined time or the set time. Therefore, when the operation time detecting means detects the passage of the predetermined time or the set time, the filter cleaning operation can be surely performed by the second filter cleaning operation function.

The invention of the dryer according to claim 8 is: a casing; an inner tank for storing cloth; a first drive source for rotating or rotating the inner tank; and an inlet for introducing cloth into the inner tank. An outer lid that closes the inlet, a circulation air passage arranged so as to circulate and supply air to the inner tank, an air blowing unit that blows air in the circulation air passage, and a filter provided in the circulation air passage. A cleaning device, a drying operation function for drying the cloth, and a wrinkle prevention operation function for reducing wrinkles by blowing air to the cloth in the inner tank after the drying operation by the drying operation function is completed, In the dryer having the above, the filter cleaning device includes a filter that captures lint generated from the cloth, a dust remover that removes the lint from the filter, and a second drive source that moves the dust remover. However, the dryer has a filter cleaning operation function of performing a filter cleaning operation of moving the dust removing body after the completion of the drying operation, and also has an opening/closing detection means for detecting opening/closing of the outer lid. When the opening/closing of the outer lid is detected by means, the filter cleaning device performs a filter cleaning operation.

In the invention of claim 8, when the opening/closing detection means detects the opening/closing of the outer lid, for example, during the drying operation or after the completion of the drying operation, during the wrinkle prevention operation or after the wrinkle prevention operation, the circulating air is detected by the filter cleaning operation function. Since the filter in the passage can be cleaned, clogging of the filter can be prevented, and lint does not adhere to the filter at the start of the next drying operation, preventing a decrease in the air volume in the circulation air passage. The drying efficiency is improved, and the drying time of the cloth can be shortened.

The invention of the dryer according to claim 9 is: a casing; an inner tank for storing cloth; a first drive source for rotating or rotating the inner tank; and an inlet for introducing cloth into the inner tank. An outer lid that closes the inlet, a circulation air passage arranged so as to circulate and supply air to the inner tank, an air blowing unit that blows air in the circulation air passage, and a filter provided in the circulation air passage. A cleaning device, a drying operation function for drying the cloth, and a wrinkle prevention operation function for reducing wrinkles by blowing air to the cloth in the inner tank after the drying operation by the drying operation function is completed, In the dryer having the above, the filter cleaning device includes a filter that captures lint generated from the cloth, a dust remover that removes the lint from the filter, and a second drive source that moves the dust remover. However, the dryer has a filter cleaning operation function of performing a filter cleaning operation of moving the dust removing body after the completion of the drying operation, and a controller for electrically controlling the dryer, and a power supply of the controller. And a power switch for switching on and off, and the filter cleaning device performs a filter cleaning operation when the power switch is pressed.

In the invention of claim 9, for example, during the drying operation or after the completion of the drying operation, during the wrinkle prevention operation or after the completion of the wrinkle prevention operation, the power switch of the control mechanism for electrically controlling the dryer is turned on and off. In this case, the filter cleaning operation function can clean the filter in the circulation air passage, so it is possible to prevent clogging of the filter and lint does not adhere to the filter at the start of the next drying operation. It is possible to prevent the decrease of the air volume in the circulation air passage, improve the drying efficiency, and shorten the drying time of the cloth.

In the invention of the dryer according to claim 1, since the filter in the circulation air passage can be cleaned after the wrinkle prevention operation is completed by the second filter cleaning operation function, clogging of the filter can be prevented, and next time. Since lint is not attached to the filter at the start of the drying operation, the reduction of the air volume in the circulation air passage is prevented, the drying efficiency is improved, and the drying time of the cloth can be shortened. Further, according to the inventions of claims 2 to 7, when the predetermined state is detected by various means, the filter cleaning operation can be reliably performed by the second filter cleaning operation function.

Further, the invention of claims 8 and 9 is, for example, during the drying operation or after the completion of the drying operation, during the wrinkle prevention operation or after the completion of the wrinkle prevention operation, when a predetermined state is reached, the circulation air passage is provided by the filter cleaning operation function. Since the filter inside can be cleaned, clogging of the filter can be prevented and lint does not adhere to the filter at the start of the next drying operation, preventing a decrease in the air volume in the circulation air passage. The drying efficiency is improved, and the drying time of the cloth can be shortened.

The perspective view which shows the dryer of 1st Embodiment which concerns on this invention. Sectional drawing which shows the internal structure of the dryer of 1st Embodiment which concerns on this invention. Perspective view showing the external appearance of the filter cleaning device (A) AA sectional view of FIG. 3 showing the state of the dust removing body after the wrinkle prevention operation is in the initial position (b) A of FIG. 3 showing the state of the dust removing body after the wrinkle prevention operation is in the forward end position Section A The perspective view which shows the dryer of 2nd Embodiment which concerns on this invention. Sectional drawing which shows the internal structure of the dryer of 3rd Embodiment which concerns on this invention. Block diagram showing the outline of the control system of the dryer according to the present invention The flowchart which shows the 1st operation content of the dryer which concerns on this invention. The flowchart which shows the 2nd operation content of the dryer which concerns on this invention. The flowchart which shows the 3rd operation content of the dryer which concerns on this invention. The flowchart which shows the 4th operation content of the dryer which concerns on this invention. The flowchart which shows the 5th operation content of the dryer which concerns on this invention. The flowchart which shows the 6th operation content of the dryer which concerns on this invention. The flowchart which shows the 7th operation content of the dryer which concerns on this invention. The flowchart which shows the 8th operation content of the dryer which concerns on this invention. The flowchart which shows the 9th operation content of the dryer which concerns on this invention.

Embodiments of the present invention will be described below with reference to the drawings. The present invention is not limited to this embodiment.

FIG. 1 is a perspective view showing a dryer according to the present invention, and FIG. 2 is a sectional view showing an internal structure of the dryer. The dryer according to the present invention will be described with reference to these drawings. The dryer 20 according to the present invention is provided with an outer lid 20a on the front surface of a housing 20e that closes an inlet (not shown) for feeding cloths, and is rotatably or rotatably arranged in a tank body 20d. The warm air generated by the blower unit (fan) 23 and the heating unit 22 is circulated and supplied into the inner tank (drum) 20b for accommodating the air through the circulation air passages 21a, 21b, and 21c so that clothes and the like can be dried. At the same time, the filter cleaning device 10 is installed on the exhaust side of the circulation air passages 21a, 21b, 21c from the tank body 20d.

Reference numeral 20c is a motor (first drive source) for rotating or rotating the inner tub 20b. The motor 20c is used for various processes such as a drying process, a washing process, a rinsing process and a dehydrating process. To rotate or rotate. Further, as the heating means 22, for example, a heat exchanger can be used. Various types of heat exchangers such as a heat pump type and a heater type can be adopted. Further, although the dryer 20 is a drum type, it is not limited to this, and various types such as a vertical type can be adopted.

The dryer 20 according to the present invention generates a cloth by drying the cloth and drying the cloth by blowing air to the cloth in the inner tank 20b after the drying operation by the dry operation function is completed. It has a wrinkle prevention driving function to reduce wrinkles.

FIG. 3 is a perspective view showing the outer appearance of the filter cleaning device. The filter cleaning device that constitutes the dryer according to the present invention will be described with reference to this drawing. The filter cleaning device 10 includes an arc-shaped filter 1 having a filter surface 1a for collecting lint, an air passage 2 provided on the upstream side of the filter 1, and a rotation provided in the air passage 2. A shaft 3, a dust remover 4 provided on the rotary shaft 3 and rotatably abutting on the filter 1 to remove lint adhering to the filter surface 1a, and an opening near the forward end position of the dust remover 4. It has the 1st lint storage part 5 which has, and the 2nd lint storage part 6 which has an opening near the initial position of the dust removal body 4. A filter 12 for lint compression is installed in the first lint storage section 5, and the filter 12 for lint compression is provided by blowing air through the first lint storage section 5 during the drying operation of the dryer. It has a function of compressing the lint in the lint storage section 5.

The dust removing body 4 is provided with a ventilation hole 4a, and this ventilation hole 4a can reduce resistance applied to the dust removing body 4 when a drying operation is performed with the filter cleaning device 10 mounted in a dryer. As a result, the dust remover 4 is less likely to come off the opening of the second lint accommodating portion 6, and the backflow of lint can be prevented. Further, since it is possible to reduce the obstruction of the flow of the dry air by the dust remover 4, it is possible to improve the drying efficiency.

The filter cleaning device 10 includes an upper plate 8 and a bottom plate 9 each having a flat surface orthogonal to the filter surface 1a of the filter 1. The bottom plate 9 has a first inner wall 11 (see FIG. 4) with respect to the bottom plate 9. It is a slide type and is installed so as to be removable. The first inner wall 11 constitutes the first lint storage section 5 described above, and when the lint accumulated in the first lint storage section 5 is discarded, the lint can be easily discarded by removing the first inner wall 11. You can In addition, a lid 7 is installed on the ventilation side of the filter cleaning device 10 so as to be openable and closable by hinge portions 7b, 7b connected to the bottom plate 9. Further, the lid 7 is formed with a second inner wall 7a (see FIG. 4) that constitutes the second lint storage portion 6. Further, the cover 7 is formed with a ventilation hole 7c, and it is preferable that the ventilation hole 7c is formed to be smaller than or substantially the same size as the ventilation hole 4a of the dust removing body 4 described above. With such a configuration, the dust remover 4 is less likely to come off from the opening of the second lint accommodating portion 6, backflow of lint can be prevented, and the dust remover 4 can further reduce the obstruction of the flow of dry air. The second inner wall 7a may be slidably and erected on the lid 7 or the bottom plate 9 in a removable manner. Further, the first inner wall 11 may be installed upright on the lid 7 side, or the first inner wall 11 may be installed upright on the lid 7 in a slidable manner.

In the filter cleaning device 10, one end of the rotating shaft 3 is connected to a motor (second drive source) 13 via a gear (not shown). When the stepping motor is used as the motor 13, the dust remover 4 can be locked by the stop torque of the motor or the like, so that the dust remover 4 can be prevented from coming off from the opening of the second lint accommodating portion 6 due to the wind pressure during the drying operation. Further, the filter cleaning device 10 is designed to be attachable to and detachable from the housing 20e so that the lint accumulated in the first lint accommodating portion 5 and the second lint accommodating portion 6 can be easily discarded. The cleaning device 10 may be detachable together with the cleaning device 10, or may be arranged on the housing 20e side.

And the dryer 20 which concerns on this invention has a control apparatus (not shown) installed in the predetermined position, and this control apparatus implements the filter cleaning operation which moves the dust remover 4 after completion|finish of drying operation. It has a filter cleaning operation function of No. 1 and a second filter cleaning operation function of performing the filter cleaning operation of moving the dust removing body 4 after the wrinkle prevention operation is completed. Therefore, since the second filter cleaning operation function can clean the filter 1 in the circulation air passage 21a after the wrinkle prevention operation is completed, it is possible to prevent the filter 1 from being clogged and to start the next drying operation. Since lint is not attached to the filter 1, it is possible to prevent a decrease in the air volume in the circulation air passage, improve the drying efficiency, and shorten the drying time of the cloth.

FIG. 4A is a cross-sectional view taken along the line AA in FIG. 3 showing a state where the dust remover after the wrinkle prevention operation is in the initial position, and FIG. 4B is a dust remover after the end of the wrinkle prevention operation. FIG. 4 is a sectional view taken along line AA of FIG. The cleaning operation of the filter cleaning device after the wrinkle prevention operation is completed will be described below with reference to these drawings.

When the dust remover 4 is in the initial position, as shown in FIG. 4A, when viewed from a direction substantially perpendicular to the opening surface of the second lint accommodating portion 6, the opening 6a of the second lint accommodating portion 6 is formed. It is arranged at a position facing each other so as to overlap with. A blade 4b having flexibility is installed at the end of the dust remover 4, and a plurality of protrusions 4c and 4c capable of scraping and removing lint are formed at the tip of the blade 4b. Further, one end of the filter 1 is formed by the concave plane 1b, and the dust remover 4 is in the initial position, and the tip of the dust remover 4 is not in contact with the filter 1. As a result, it is possible to reduce the adhesion of lint to the tip of the dust remover 4, and thus it is possible to prevent the backflow prevention performance and the lint removal performance of lint from decreasing. Moreover, since the blade 4b does not bend due to the concave flat surface 1b, the durability of the blade 4b can be improved. Further, since the lint adhering to the filter surface 1a extending from the recess flat surface 1b is scraped up from below and the blade 4b peels off the lint so that the lint is lifted, the dust removing effect can be enhanced.

The shape of the second inner wall 7a of the second lint accommodating portion 6 in the longitudinal direction of the tip may be various shapes such as a curved surface shape and an uneven shape. The release of lint can be suppressed by adjusting the above. Further, the dust remover 4 may have various shapes such as a curved shape, an L shape, and a shape in which only the blade 4b is inclined. For example, when the filter surface 1a is brought into contact with the filter surface 1a, resistance is maintained and strong scraping is performed on the outward path, and conversely, on the return path, the filter surface 1a is gently stroked so as to contact and remove dust. The strength with which the filter surface 1a is abutted on the return path can be made different.

When the dust remover 4 is at the forward end position, the dust remover 4 is stopped in contact with the first inner wall 11, as shown in FIG. 4B. In this state, the surface extending from the tip of the first inner wall 11 to the filter 1 side, which is substantially parallel to the longitudinal direction of the cleaning body 4, forms the opening 5a of the first lint accommodating portion 5 indicated by the broken line. It is an opening surface to be formed. The lint 14a thinly attached to the entire filter surface 1a in the state of FIG. 4A after the wrinkle prevention operation is completed is housed in the first lint housing part 5 by the cleaning body 4. The lint 14b attached to the lint compression filter 12 collected during the drying operation is transferred to the inner part of the first lint storage unit 5. Therefore, by cleaning the filter 1 in the circulation air passage after the wrinkle prevention operation is completed, clogging of the filter 1 can be prevented, and the lint 14a is not attached to the filter 1 at the start of the next drying operation. It is possible to prevent a decrease in the amount of air in the circulation air passage, improve the drying efficiency, and shorten the drying time of the cloth.

The movement of the lint 14a is peeled off from the filter surface 1a by the blade 4b, and the front lint that is peeled off while meandering continuously peels off the rear lint and transfers it to the first lint accommodating portion 5 side. In addition, depending on the shape of lint and the state of adhesion to the filter surface 1a, there may be a case where a vortex is wound in a roll or a case where the vortex is slid and transferred. Further, it is desirable that the first lint accommodating section 5 be designed to have a size that can accommodate about one week when the drying operation is performed once a day and the wrinkle prevention operation is performed thereafter. It can be freely designed according to the space on the side.

FIG. 5: is a perspective view which shows the dryer of 2nd Embodiment which concerns on this invention. In the dryer 30 shown in FIG. 5, an operation panel 30b is installed on the top of a housing 30a, and a power switch 30c is arranged in the operation panel 30b. A lock mechanism 33 that locks the outer lid 32 is installed near the entrance 31, and a lock mechanism detection unit 34 that detects the locked state of the lock mechanism 33 is installed. Further, an opening/closing detection means 35 for detecting opening/closing of the outer lid 32 is installed near the entrance 31.

FIG. 6 is a cross-sectional view showing the internal configuration of the dryer of the third embodiment according to the present invention. In the dryer 40 shown in FIG. 6, an operation panel 40b is installed on an upper part of a housing 40a, and a substrate 40c is installed under the operation panel 40b. Then, the substrate 40c is provided with an operation time detecting means 40d for detecting an operation time of a control device (not shown) installed at a predetermined position of the dryer. A temperature detecting means 42 is installed in the circulation air passage 41. The temperature detecting means 42 may be installed in the inner tank 43 instead of the circulation air passage 41. Further, an air volume detecting means 44 is installed in the circulation air passage 41. A cloth detecting means 45 is installed in the inner tank 43. The cloth detecting unit 45 includes, for example, an optical sensor in its configuration, and detects the presence or absence of cloth by blocking or reflecting the light by the cloth in the inner tank 43. Further, a rotation or rotation detection means 47 for detecting rotation or rotation of the inner tank is installed near the first drive source 46.

FIG. 7 is a block diagram showing an outline of the control system after completion of the drying operation of the dryer according to the present invention. 8 to 16 are flowcharts showing the first to ninth operation contents of the dryer. The operation contents of the dryer according to the present invention will be described below with reference to these drawings. The control device (not shown) is mainly configured by a microcomputer (not shown) included in the substrate 40 and a non-volatile storage means (not shown) storing a motion control program, and after the drying operation is completed. Controls the overall operation of the dryer 20 including wrinkle prevention operation and filter cleaning. The control device includes temperature detecting means 42, air volume detecting means 44, cloth detecting means 45, rotation or rotation detecting means 47, timer means (not shown), lock mechanism detecting means 34, open/close detecting means 35, power switch. It is connected to each detecting means 30c, and signals are inputted from these detecting means. Further, the blower means 23 and the heating means 22 are also connected to each other so that input/output is possible. The control device judges the input signal sent from the detection means based on the operation control program, and controls by the input/output signals to the air blowing means 23, the heating means 22, the motor 20c and the like.

The dryer according to the present invention has a first filter cleaning operation function, and when the drying operation is completed, as shown in FIG. 7 and FIG. A filter cleaning operation in which the dust remover is movable is carried out (step S1). When the filter cleaning operation after the drying operation is completed (step S2), the wrinkle prevention operation is usually started (step S3). Next, when the wrinkle prevention operation is completed (step S4), the control device is operated from various means by the second filter cleaning operation function, and the filter cleaning operation after the wrinkle prevention operation is started (step S5). .. When the filter cleaning operation is completed (step S6), the wrinkle prevention operation is completed (step S7), and all the operations are completed (step S8). In addition, after the wrinkle prevention operation of step S7 is completed, the operation returns to the wrinkle prevention operation of step S3, and the wrinkle prevention operation and the filter cleaning operation are repeated a plurality of times, or at the end of all the operations of the wrinkle prevention operation, It is also possible to carry out and end the filter cleaning operation.

On the other hand, if the filter cleaning operation in step S1 is not executed for some reason, the wrinkle prevention operation is executed (step S9), and then the filter cleaning operation is executed (step S10). Then, when the filter cleaning operation ends (step S11), all the operations end (step S8).

The flowchart of FIG. 9 shows that when the air volume detection means installed in the circulation air passage detects that the air volume in the circulation air passage has fallen below a predetermined value, the second filter cleaning operation function performs filter cleaning. It shows the case where the operation is carried out. When the power supply to the blower means 23 is cut off, the rotation speed of the blower means 23 is reduced and the air volume in the circulation air passage is reduced. In the flowchart of FIG. 9, after the end of the wrinkle prevention operation (step S4), the air volume detecting means measures the air volume in the circulation air passage (step S4-1), and it is detected that the air volume is lower than a predetermined value. If so (step S4-2), the filter cleaning operation is started (step S5).

In the above control method, for example, when the filter cleaning operation is started, the determination of the air flow in the circulation air passage 21 is performed. That is, the control device is configured as an air volume detection unit that controls the air volume of the air blowing unit and performs the air volume detection control for detecting the air volume in the circulation air passage 21. In the air volume detection control, the energization of the blower means 23 is cut off, the air volume flowing in the circulation air passage 21 at the time of the disconnection is detected by an air volume sensor (not shown), and the detected air volume is compared with a predetermined value. Blower is detected based on the result. By the control method described above, it is possible to reliably grasp that the wrinkle prevention operation has ended and the ventilation in the circulation air passage 21 has ended, and to clean the filter.

The flowchart of FIG. 10 shows a case where the second tank cleaning function performs a filter cleaning operation when the inner tank rotation or rotation detection unit detects the end of the inner tank rotation or rotation operation. Is shown. Here, the end of the rotation operation or the rotation operation of the inner tank means the operation of completing the intermittent motion of rotating/rotating and stopping the inner tank at a constant interval, and the next wrinkle prevention operation or the drying operation. The inner tank is stopped until the operation is started. In the flowchart of FIG. 10, after the end of the wrinkle prevention operation (step S4), the rotation or rotation operation of the inner tank is measured by the rotation or rotation detection means of the inner tank (step S4-1). When the end of the rotation operation or the rotation operation of is detected (step S4-2), the filter cleaning operation is started (step S5).

In the above control method, for example, when the filter cleaning operation is started, the rotation of the inner tank 43 or the detection of the rotation is determined. That is, the control device electrically controls the motor (first drive source) 20c (current value, voltage) to perform rotation detection control for detecting rotation/rotation of the inner tank 43. Is configured as. In the rotation detection control, the inner tub 43 is rotated/rotated by the motor (first drive source) 20c, and an electric numerical value is sent to the motor (first drive source) by a sensor (not shown) during the rotation/rotation. No.), and the rotation is detected based on the detected electrical value. By the control method described above, it is possible to reliably know that the wrinkle prevention operation has ended and clean the filter.

The flowchart of FIG. 11 shows a case where the filter cleaning operation is performed by the second filter cleaning function when the cloth detecting means installed in the inner tank detects that there is no cloth in the inner tank. ing. Here, the condition that there is no cloth in the inner tank means that the dryer user has taken out the dry cloth, and there is no need to blow air into the inner tank. Execution is complete. In the flowchart of FIG. 11, after the wrinkle prevention operation is completed (step S4), the cloth detecting means detects the cloth in the inner tank (step S4-1), and detects that there is no cloth in the inner tank. If so (step S4-2), the filter cleaning operation is started (step S5).

In the above control method, as the cloth detection means, for example, the weight of the cloth in the inner tank 43 may be determined at the start of the filter cleaning operation. That is, the control device is configured as a cloth weight detection unit that performs vector control of the motor (first drive source) 20c and performs weight detection control for detecting the weight of the cloth stored in the inner tank 43. Has been done. In the weight detection control, the inner tub 43 is rapidly rotated by the motor (first drive source) 20c, and a current sensor (not shown) measures the value of the current flowing through the motor (first drive source) during the rapid rotation. The weight of the cloth is detected based on the detected current value. Then, the cloth weight is determined before the filter cleaning operation (step S1) after the drying operation is completed, and then the cloth weight is similarly determined before the filter cleaning operation (step S5) after the wrinkle prevention operation is completed. Then, when it is determined that the weight of the cloth is smaller than the cloth weight determined before step S1 by the predetermined value or more, it is assumed that the cloth is not present in the inner tank (step S4-2).
By the above control method, it is possible to reliably grasp that the cloth has been taken out and clean the filter, so that it is possible to improve the drying efficiency and shorten the drying time of the cloth.

In the flowchart of FIG. 12, when it is detected by the temperature detecting means that the temperature in the inner tank or the circulation air passage is lower than a predetermined value, the second filter cleaning operation function performs the filter cleaning operation. It shows the case. When the power supply to the heating means 22 is cut off, the temperature of the heating means 22 lowers and the temperature in the inner tank or the circulation air passage decreases. In the flowchart of FIG. 12, after the wrinkle prevention operation is completed (step S4), the temperature detecting means measures the temperature in the inner tank or the circulation air passage (step S4-1), and detects a temperature decrease below a predetermined value. If so (step S4-2), the filter cleaning operation is started (step S5).

In the above control method, for example, when the filter cleaning operation is started, the temperature in the inner tank 43 or the circulation air passage 21 is determined. That is, the controller controls the heating of the heating means 22 in the drying operation and the wrinkle prevention operation, and performs the temperature detection control for detecting the temperature in the inner tank 43 or the circulation air passage 21 (thermistor). Is configured as. In the temperature detection control, the heating means 22 is de-energized, and at the time of the cutting, it is detected that the temperature in the inner tank 43 or the circulation air passage 21 has reached a certain temperature by a temperature sensor (not shown). Then, the judgment is made based on the result of comparing the detected temperature with a predetermined value. According to the control method described above, it is possible to reliably grasp that the temperature in the inner tank 43 or the circulation air passage 21 has dropped after the wrinkle prevention operation has ended, and the filter can be cleaned.

The flowchart of FIG. 13 shows a case where the filter cleaning operation is performed by the second filter cleaning function when the lock mechanism detection unit detects unlocking of the outer lid. Here, the unlocked state of the outer lid refers to a locked state in which opening/closing of the outer lid is suppressed from the viewpoints of reducing temperature and air volume in the inner tank during cloth drying operation and wrinkle prevention operation, and ensuring safety. However, after the operation, the lock is released so that the dryer user can open and close the outer lid automatically or manually to take out the dried cloth from the inner tank. In the flowchart of FIG. 13, after the wrinkle prevention operation is finished (step S4), the presence or absence of the lock holding state of the outer lid is detected (step S4-1), and when unlocking of the outer lid is detected (step S4). -2), the filter cleaning operation is started (step S5).

In the above control method, for example, when the filter cleaning operation is started, it is determined whether or not the outer lid 20a is unlocked. That is, the control device is configured as a lock mechanism detection unit that performs opening/closing control of the lock mechanism and performs lock release detection control for detecting release of the lock mechanism. In the lock mechanism detection control, the outer lid 20a is unlocked electrically (a magnet is close to the reed switch) or mechanically (physically such as a clamp), and electrical or mechanical unlocking is performed at the time of the unlocking. It is detected by a lock release sensor (not shown), and judgment is made based on the detected release. By the control method described above, the filter can be cleaned immediately before the cloth is taken out, that is, before the next drying operation is started, so that the drying efficiency can be increased and the cloth drying time can be shortened.

The flowchart of FIG. 14 shows a case where the second filter cleaning function performs the filter cleaning operation when the operation time detection unit detects the passage of the predetermined time or the set time. Here, the state in which the predetermined time or the set time has elapsed by the operation time detection means is assumed that the lint is attached to the filter to the extent that the timer is activated at the same time as the start of the wrinkle prevention operation and the air flow is reduced. It shows a state where time has elapsed. In the flowchart of FIG. 14, while the wrinkle prevention operation is being performed (step S3), the operation time of the wrinkle prevention operation is measured (step S3-1). After completion of the wrinkle prevention operation (step S4), it is determined whether or not a predetermined time or a set time has elapsed (step S4-1). If the predetermined time or the set time has elapsed, the filter cleaning operation is performed. Is started (step S5). If the predetermined time or the set time has not elapsed, the process returns to step S3-1 and the operation time of the wrinkle prevention operation is measured. By the above control method, the number of times of filter cleaning operation can be set to the necessary minimum number, so that the power consumption is reduced and the durability of the filter cleaning device is improved.

The flowchart of FIG. 15 illustrates a case where the filter cleaning device performs the filter cleaning operation when the opening/closing detection unit that detects the opening/closing of the outer lid detects the opening/closing of the outer lid. In the flowchart of FIG. 15, while the wrinkle prevention operation of step S3 is being performed, the presence or absence of the open/closed state of the outer lid is detected (step S3-1), and when the open state of the outer lid is detected ( Step S3-2), the wrinkle prevention operation ends (step S4), and the filter cleaning operation is performed (step S5). On the other hand, if the filter cleaning operation in step S5 has not been executed for some reason and the closed state of the outer lid is detected (step S5-1), the filter cleaning operation is executed (step S5-2). .. In addition, when the state in which the outer lid is opened is not detected in step S3-2, the wrinkle prevention operation ends (step S3-3), and when the state in which the outer lid is opened is detected thereafter (step S3-). 4), the filter cleaning operation is performed (step S5). By the above control method, it is possible to prevent clogging of the filter, since lint is not attached to the filter at the start of the next drying operation, it is possible to prevent a decrease in the air volume in the circulation air passage to improve the drying efficiency, The drying time of cloth can be shortened.

The flowchart of FIG. 16 shows a case where the filter cleaning operation is performed by the filter cleaning device when the power switch for turning on/off the power of the control device that electrically controls the dryer is pressed. In the flowchart of FIG. 16, when the power switch is pressed while the wrinkle prevention operation of step S3 is being performed (step S3-1), the wrinkle prevention operation is ended (step S4), and the filter cleaning operation is performed. Is carried out (step S5). If the power switch is not pressed in step S3-1, the wrinkle prevention operation ends after a predetermined time has passed (step S3-2), and if the power switch is pressed thereafter (S3-3). ), the filter cleaning operation is performed (step S5). By the above control method, it is possible to prevent clogging of the filter, since lint is not attached to the filter at the start of the next drying operation, it is possible to prevent a decrease in the air volume in the circulation air passage to improve the drying efficiency, The drying time of cloth can be shortened.

Each of the above control methods can be appropriately selected as needed, and a case where a plurality of control methods are combined is also included in the present invention. In the case where a plurality of control methods are combined, it is preferable that the cloth detecting means is executed with priority, and then the air volume detecting means is executed with priority. This is to prevent more lint from adhering to the filter at the start of the next drying operation, combining multiple control methods assuming that each control method is not executed for some reason such as a failure. At the same time, the priority can be set.

The dryer according to the present invention is used for drying clothes as a dryer equipped with a filter cleaning device for removing lint adhering to the filter.

DESCRIPTION OF SYMBOLS 1 Filter 1a Filter surface 1b Recessed plane 2 Ventilation path 3 Rotating shaft 4 Dust remover 4a Ventilation hole 4b Blade 4c Protrusion 5 First lint storage part 5a Opening 6 Second lint storage part 7 Lid 7a Second inner wall 7b Hinge part 8 Upper plate 9 Bottom plate 10 Filter cleaning device 11 First inner wall 12 Filter for lint compression 13 Motor (second drive source)
14, 14a, 14b, 14c Lint 20, 30, 40 Dryer 20a Outer lid 20b, 43 Inner tank 20c Motor (first drive source)
20d Tank body 20e Housing 21a, 21b, 21c Circulating air passage 22 Heating means 23 Blower means (fan)
30a Housing 30b, 40b Operation panel 30c Power switch 33 Lock mechanism 34 Lock mechanism detection means 35 Open/close detection means 40b Base 40d Operating time detection means 45 Cloth detection means 47 Rotation detection means

Claims (9)

Housing and
An inner tank for storing cloths,
A first drive source for rotating or rotating the inner tank;
An inlet for introducing cloth into the inner tank,
An outer lid that closes the entrance,
A circulation air passage arranged so that air can be circulated and supplied to the inner tank,
A blowing means for blowing the air in the circulation air passage,
A filter cleaning device provided in the circulation air passage,
A drying operation function for drying the cloth,
In a dryer having a wrinkle prevention operation function of reducing wrinkles by blowing air to the cloth in the inner tank after the completion of the drying operation by the drying operation function,
The filter cleaning device, a filter for capturing lint generated from the cloth,
A dust remover for removing the lint from the filter;
A second drive source for moving the dust removing body,
The dryer has a first filter cleaning operation function of performing a filter cleaning operation in which the dust remover is moved after the drying operation is completed,
A second filter cleaning operation function of performing the filter cleaning operation after the wrinkle prevention operation is completed. When the air flow rate detecting means detects that the air flow rate in the circulating air flow path is lower than a predetermined value, the second filter cleaning operation function cleans the filter. The dryer according to claim 1, wherein the dryer is operated. Having a rotation or rotation detection means for the inner tank, and performing a filter cleaning operation by the second filter cleaning function when the rotation or rotation detection means detects the end of the rotation operation or rotation operation. The dryer according to claim 1, wherein A cloth detecting means is provided in the inner tank, and when the cloth detecting means detects that there is no cloth in the inner tank, the filter cleaning operation is performed by the second filter cleaning function. The dryer according to claim 1. There is a heating means for heating the air in the circulation air passage of the dryer during the wrinkle prevention operation, and a temperature detection means in the inner tank or the circulation air passage, and by the temperature detection means, in the inner tank or the circulation air. 2. The dryer according to claim 1, wherein the filter cleaning operation is performed by the second filter cleaning operation function when it is detected that the temperature in the road has dropped below a predetermined value. A lock mechanism that holds the closed state of the outer lid and a lock mechanism detection unit that detects the locked state of the lock mechanism are provided. When the lock mechanism detection unit detects unlocking of the outer lid, the second The dryer according to claim 1, wherein the filter cleaning operation is performed by the filter cleaning function of the above. It has a control mechanism for electrically controlling the dryer and an operation time detection means for detecting the operation time of the control mechanism, and when the operation time detection means detects the passage of a predetermined time or a set time, The dryer according to claim 1, wherein the filter cleaning operation is performed by the filter cleaning function of 2. Housing and
An inner tank for storing cloths,
A first drive source for rotating or rotating the inner tank;
An inlet for introducing cloth into the inner tank,
An outer lid that closes the entrance,
A circulation air passage arranged so that air can be circulated and supplied to the inner tank,
A blowing means for blowing the air in the circulation air passage,
A filter cleaning device provided in the circulation air passage,
A drying operation function for drying the cloth,
In a dryer having a wrinkle prevention operation function of reducing wrinkles by blowing air to the cloth in the inner tank after the completion of the drying operation by the drying operation function,
The filter cleaning device, a filter for capturing lint generated from the cloth,
A dust remover for removing the lint from the filter;
A second drive source for moving the dust removing body,
The dryer has a filter cleaning operation function of performing a filter cleaning operation of moving the dust remover after completion of the drying operation,
A dryer, which has an opening/closing detection unit that detects opening/closing of the outer lid, and the filter cleaning device performs a filter cleaning operation when the opening/closing detection unit detects opening/closing of the outer lid. Housing and
An inner tank for storing cloths,
A first drive source for rotating or rotating the inner tank;
An inlet for introducing cloth into the inner tank,
An outer lid that closes the entrance,
A circulation air passage arranged so that air can be circulated and supplied to the inner tank,
A blowing means for blowing the air in the circulation air passage,
A filter cleaning device provided in the circulation air passage,
A drying operation function for drying the cloth,
In a dryer having a wrinkle prevention operation function of reducing wrinkles by blowing air to the cloth in the inner tank after the completion of the drying operation by the drying operation function,
The filter cleaning device, a filter for capturing lint generated from the cloth,
A dust remover for removing the lint from the filter;
A second drive source for moving the dust removing body,
The dryer has a filter cleaning operation function of performing a filter cleaning operation of moving the dust remover after completion of the drying operation,
It has a control device that electrically controls the dryer and a power switch that turns on and off the power of the control device, and when the power switch is pressed, the filter cleaning device performs a filter cleaning operation. A dryer characterized in that.

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