JP3293235B2 - Clothes dryer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotating drum type clothes dryer which automatically stops operation in accordance with the drying state of clothes.

[0002]

2. Description of the Related Art A conventional clothes dryer of this type is generally as shown in FIG. Hereinafter, the configuration will be described.

As shown in the drawing, a motor 2 serving as a driving source is provided at a lower portion of a main body 1, a fan 3 provided on a back side of the motor 2 and the main body 1, and a rotary drum provided in front of the fan 3. Belts 5 and 6 are stretched between the fan 3 and the rotating drum 4 by driving the motor 2. Further, a heater 7 serving as a heat source is disposed on the front side of the main body 1, and hot air heated through the heater 7 by the rotation of the fan 3 is introduced into the rotary drum 4 through a hot air outlet 8, The object to be dried (clothing) accommodated in 4 is heated and dried. Arrow A indicates the flow of the wind. Reference numeral 9 denotes an electrode, which is in contact with a material to be dried in the rotary drum 4 during operation. This electrode 9
Is constituted by two conductive members 10 and an insulating member 11 as shown in FIG. 14, and detects a dry state of the object to be dried by detecting a resistance value R between the conductive members 10; As shown in FIG.
The operation is terminated at a time t4 when a predetermined delay time T3 has elapsed from a time t2 at which the set value a becomes larger than the set value a continuously for a predetermined time T1. The reason for setting the delay time T3 is that drying is insufficient at time t2. Reference numeral 12 denotes a temperature sensor which is provided near the heater 7. Reference numeral 13 denotes a filter for collecting lint from the material to be dried. When the user repeatedly operates without cleaning the filter 13, the lint accumulates on the filter 13 and the flow of the wind indicated by the arrow A becomes weak. That is, the heater 7
Therefore, the temperature of the temperature sensor 12 disposed in the vicinity becomes high because the amount of air passing through the air becomes small. When the temperature of the temperature sensor 12 becomes higher than the set value, the operation is stopped for safety.

[0004]

In such a conventional clothes dryer, when the temperature of the temperature sensor 12 becomes higher than a set value during operation, the operation is stopped for safety. If there is no habit of cleaning the filter 13, there is a problem that the operation is stopped halfway while the object to be dried is undried once every several times, which is inconvenient.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to dry an object to be dried and to automatically stop the operation while ensuring safety even when a user has no habit of cleaning a filter. This is the first purpose.

Further, even if the user does not have a habit of cleaning the filter, the object to be dried can be dried and the operation can be automatically stopped while preventing a temperature rise near the heat source and ensuring safety. As a second object.

In addition, if the user does not have the habit of cleaning the filter and uses it repeatedly, the temperature in the vicinity of the heat source is prevented from rising excessively and the user is notified of the fact, so that the user can operate without trouble after cleaning the filter. Is a third object.

A fourth object of the present invention is to detect factors other than clogging of the filter and prevent the temperature near the heat source from rising excessively, thereby ensuring safety.

It is a fifth object of the present invention to secure the safety by preventing the temperature in the vicinity of the heat source from excessively rising due to factors other than clogging of the filter with respect to all the objects to be dried.

In addition, if the user does not have the habit of cleaning the filter and uses the filter repeatedly, the object to be dried can be dried while preventing a temperature rise near the heat source and ensuring safety, thereby preventing malfunction. The purpose is.

Further, if the user has no habit of cleaning the filter and tries to use it repeatedly, the user is notified that the filter is clogged before the temperature near the heat source rises excessively, and the user is asked to clean the filter. The seventh object is to ensure safety by encouraging security.

[0012]

In order to achieve the first object, the present invention provides a rotating drum for introducing hot air from a heat source to rotate and agitate an object to be dried, a motor for driving the rotating drum and the like, Drying degree detecting means for detecting the degree of drying of the object to be dried in the rotating drum; a temperature sensor disposed near the heat source; temperature detecting means for detecting a temperature from the temperature sensor; Comparing means for comparing the temperature detected by the means with a set value; controlling means for controlling the operation of the heat source and the motor based on information obtained by the dryness detecting means or the comparing means; and the controlling means Drive means for driving the input of the heat source and the motor by the output of the storage means, storage means for storing the operation content based on the output of the comparison means, and a notifier for notifying when stored in the storage means When the detected temperature from the temperature sensor is higher than a set value, the control means lowers the input of the heat source through the drive means to set a longer operation time and the notification after the end of the operation. Means, the heat source is turned off, the heat source is turned off, the heat source is turned off immediately when the temperature detected by the temperature sensor is higher than a set value even after a predetermined time has elapsed after the operation with the input of the heat source lowered. The first problem-solving means is that the notification is stopped by the notification means.

[0013] In order to achieve the second object, the control means of the first means for solving the problem comprises, when the temperature detected by the temperature sensor is higher than a set value, turning on the heat source via the driving means for a predetermined time. After turning off, the input of the heat source is lowered, the operation time is set longer, and the operation is notified by the notification means after the operation is completed, so that the detected temperature from the temperature sensor is set even if the input of the heat source is lowered. If the value is higher than the value, the heat source is immediately turned off and then the operation is stopped, and the notification is made by the notification means.
Means to solve the problem.

In order to achieve the third object, in addition to the first means for solving the above-mentioned problems, a lid switch interlocking with a lid provided at the input port of the rotary drum and inputting its output to the control means. The control means, when the temperature detected from the temperature sensor is higher than the set value, the input of the heat source is reduced, and when the lid is opened during operation continuation, the operation is immediately stopped via the driving means, A third problem solving means is to erase the contents stored in the storage means.

[0015] In order to achieve the fourth object, the control means of the first means for solving the problems, when the temperature detected by the temperature sensor becomes higher than a set value within a predetermined time after the start of operation, immediately The fourth problem-solving means is that the operation is stopped after the heat source is turned off and the notification is made by the notification means.

Further, in order to achieve the fifth object, the control means of the first means for solving the above-mentioned problems may be arranged such that when the input of the heat source is not in the maximum state, the temperature detected by the temperature sensor is higher than a set value. The fifth problem solving means is that the heat source is immediately turned off, the operation is stopped, and the notification is made by the notifying means.

In order to achieve the sixth object, the control means of the first means for solving the above-mentioned problems may be arranged such that when the input of the heat source is not in the maximum state, the temperature detected by the temperature sensor is higher than a set value. The sixth problem-solving means is that, after the heat source is turned off for a predetermined time, the input of the heat source is lowered, and the operation is notified by the notification means after the operation is continued for a predetermined time.

Further, in order to achieve the seventh object, the control means of the first means for solving the above problem stores in the storage means information indicating that the temperature detected by the temperature sensor during the previous operation is higher than the set value. When the temperature detected by the temperature sensor becomes higher than the set value, the heat source is immediately turned off, the operation is stopped, and the alarm is notified by the notification means. The seventh means for solving the problem is that when the detected temperature does not become higher than the set value, the information is stored in the storage means.

[0019]

According to the first aspect of the present invention, there is provided:
When no lint is accumulated on the filter, the drying state of the object to be dried in the rotating drum is detected by the drying degree detecting means, and the operation is terminated after a certain delay time if necessary. When lint accumulates on the filter, the temperature detected by the temperature sensor increases. Therefore, the control unit sets the operation time longer by lowering the input of the heat source, and stores the operation details in the storage unit. Then, after the operation is completed, the notification is made by the notification means to notify the user that the lint is accumulated on the filter. In addition, if the temperature detected by the temperature sensor is higher than the set value even after a predetermined time has elapsed after operation with the input of the heat source lowered, the heat source is immediately turned off and operation is stopped to improve safety. Secure and notify by the notification means. Therefore, even when the user has no habit of cleaning the filter, the object to be dried can be dried and the operation can be automatically stopped while ensuring safety.

Further, according to the second problem solving means, when lint accumulates on the filter, the temperature near the heat source can be lowered by turning off the heat source for a predetermined time, and the user can clean the filter. Even when there is no habit of drying, the object to be dried can be dried and the operation can be stopped automatically while ensuring safety by preventing excessive temperature rise near the heat source.

Further, according to the third means for solving the problem, when the lint accumulates on the filter and the input of the heat source is reduced, when the lid is opened to clean the filter, the operation is stopped and stored. By erasing the stored contents of the means, the operation can be performed without any trouble after the filter is cleaned.

Further, according to the fourth means for solving the problem, it is possible to detect a factor other than clogging of the filter and prevent the temperature in the vicinity of the heat source from excessively rising, thereby ensuring safety.

Further, according to the fifth means for solving the problem, it is possible to prevent the temperature in the vicinity of the heat source from being excessively increased due to factors other than clogging of the filter for all the objects to be dried, thereby ensuring safety.

Further, according to the sixth means for solving the problem, when the user does not have a habit of cleaning the filter and repeatedly uses the filter, it is possible to prevent an excessive temperature rise near the heat source and to prevent malfunction while ensuring safety. it can.

Further, according to the seventh problem solving means, when the user does not have a habit of cleaning the filter and tries to use it repeatedly, the user is notified that the filter is clogged before the temperature near the heat source rises excessively. Then, the user can be encouraged to clean the filter, thereby ensuring safety.

[0026]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. The same components as those in the conventional example are denoted by the same reference numerals, and description thereof is omitted.

As shown in the figure, the temperature detecting means 14 detects the temperature Ts from the temperature sensor 12. The resistance detecting means (dryness detecting means) 15 includes two conductive members 1 of the electrode 9.
The resistance value R between 0 is detected, and the degree of drying of the object to be dried in the rotating drum 4 is detected. Microcomputer 1
Reference numeral 6 denotes a comparison unit 17 for comparing the temperature Ts detected by the temperature detection unit 14 with the set value b, and a motor 2 and a heater (heat source) 7 based on the information obtained by the resistance detection unit 15 and the comparison unit 17. Control means 18 for controlling operation
And a storage unit 19 for storing the operation content based on the output of the comparison unit 17. The driving means 20 controls the motor 2 according to a control signal output from the control means 18.
And the heater 7 is driven. Notification means 2
1 is notified when the operation content based on the output of the comparison means 17 is stored in the storage means 19. The lid 22 is provided at the slot of the rotary drum 4, and the open / closed state is determined by a lid switch 23.

When the detected temperature Ts from the temperature sensor 12 is higher than the set value b, the control means 18 operates by setting the input of the heater 7 low via the driving means 20 to set the operation time longer. The notification is made by the notification means 21 after the end. If the detected temperature Ts from the temperature sensor 12 is higher than the set value b even after a predetermined time has elapsed after the operation with the input of the heater 7 lowered, the heater 7 is immediately turned off and the operation is started. Stop and notify means 21
To be notified.

In the above configuration, FIGS. 3 (a) and 3 (b) to 5 (a)
The operation will be described with reference to FIG. First, when the temperature Ts detected by the temperature detecting means 14 is lower than the set value b, as shown in FIG. 3A, the resistance value R between the two conductive members 10 is continuously set for a predetermined time T5. The operation is terminated at time t8 when the delay time T7 has elapsed from time t6 when the value becomes larger than the set value c. Then, as shown in FIG. 3 (b), during the operation of the delay time T7 after the time t6, since the object to be dried is almost dry,
Input is gradually lowered.

Next, when the user repeatedly operates the filter 13 without cleaning the filter 13, lint is removed from the filter 13.
And the flow of the wind indicated by the arrow A is weakened. That is, since the amount of air passing through the heater 7 decreases, the temperature of the temperature sensor 12 disposed near the heater 7 increases. FIG.
As shown in (a) and (b), when the temperature Ts detected by the temperature detecting means 14 becomes higher than the set value b by the comparing means 17 at time t9, the driving means 20 lowers the input of the heater 7 to operate. Is continued, and a longer operation time is set by the control means 18 so that drying is not insufficient even with a low input. Then, the information that the temperature Ts detected by the temperature detection means 14 is higher than the set value b is stored in the storage means 19, and is notified by the notification means 21 after the operation is completed. Further, the comparison between the temperature Ts detected by the temperature detecting means 14 and the set value b is always performed, and FIG.
As shown in (b), if the detected temperature Ts becomes higher than the set value b after the predetermined time T10 even if the input of the heater 7 is lowered after the time t9, the operation is stopped for safety and the notification is performed. Notify by means 21. Therefore, even when the user does not have a habit of cleaning the filter 13, the object to be dried can be dried and the operation can be automatically stopped while ensuring safety.

Next, a second embodiment of the present invention will be described. The control means 18 in FIG.
When the detected temperature Ts is higher than the set value b, the heater 7 is turned off through the driving means 20 for a predetermined time,
The operation is performed with the input of the heater 7 set low and the operation time set long, and the notification unit 21 notifies after the operation is completed. Also, if the detected temperature Ts from the temperature sensor 12 is higher than the set value b even when the input of the heater 7 is lowered,
Immediately after the heater 7 is turned off, the operation is stopped and the notifying unit 21 notifies. Other configurations are the same as those of the first embodiment.

The operation of the above configuration will be described. If the user repeatedly operates without cleaning the filter 13, the temperature detected by the temperature detecting means 14 is as shown in FIGS. 6 (a) and 6 (b). When Ts becomes higher than the set value b at time t9, the driving means 20 turns the heater 7 on for a predetermined time T.
After the 11 is cut off, the operation is continued with the input of the heater 7 lowered, and a longer operation time is set by the control means 18 so that the drying is not insufficient even with the low input. Here, by turning off the heater 7 during T11,
Excessive temperature rise near the heater 7 can be prevented. Then, the information that the temperature Ts detected by the temperature detecting means 14 has been detected by the comparing means 17 to be higher than the set value b is stored in the storage means 19, and is notified by the notifying means 21 after the operation. Further, the temperature Ts detected by the temperature detecting means 14 is constantly compared with the set value b. As shown in FIGS. 7A and 7B, even if the input of the heater 7 is lowered, the temperature Ts is not changed. When the value becomes higher than the set value b at time t12, the operation is stopped for safety and the notification means 43 is provided.
Notify by Therefore, filter 1
Even when there is no habit of cleaning 3, the object to be dried can be dried while preventing the temperature rise near the heater 7 and ensuring safety.
Operation can be stopped automatically.

Next, a third embodiment of the present invention will be described. The control means 18 in FIG.
When the temperature detected by the controller becomes higher than the set value b and the input of the heater 7 is lowered and the lid 22 is opened during the continuation of the operation, the operation is immediately stopped via the drive means 20 and the contents stored in the storage means 21 Is to be erased. Other configurations are the same as those of the first embodiment.

The operation of the above configuration will be described. When the user repeatedly operates without cleaning the filter 13, the temperature detected by the temperature detecting means 14 is changed as shown in FIGS. 8 (a) and 8 (b). When Ts becomes higher than the set value b at time t9, the driving means 20 turns the heater 7 on for a predetermined time T.
After the state of 11 is cut off, the operation is continued by lowering the input of the heater 7, a longer operation time is set by the control means 18 so that the drying is not insufficient even at a low input, and the notification means 21 is used. Notification is started. By this notification, when the user opens the lid 22 of the insertion port at time t13 to clean the filter 13, it detects that the lid 22 has been opened via the lid switch 23, and immediately stops the operation by the driving means 20. The contents stored in the storage means 21 are erased. Therefore, if the user does not have the habit of cleaning the filter 13 and uses the filter repeatedly, the temperature in the vicinity of the heater 7 is prevented from rising excessively, the user is notified of the fact, and the user attempts to drive again after cleaning the filter 13. If you do so, you can drive without trouble.

Next, a fourth embodiment of the present invention will be described. When the detected temperature Ts from the temperature sensor 12 becomes higher than the set value b within a predetermined time after the start of the operation, the control means 18 in FIG. 21 for notification. Other configurations are the same as those of the first embodiment.

The operation of the above configuration will be described. The filter 13 is abnormally clogged or causes other than the clogging of the filter 13, such as the fan 3 having poor rotation or clogging of foreign matter in the path of the wind flow A. in case of,
The temperature near the heater 7 rises sharply immediately after the start of operation. As shown in FIGS. 9 (a) and 9 (b), a predetermined time T
When the temperature Ts detected by the temperature detecting means 14 becomes higher than the set value b by the comparing means 17 within 14, the operation is immediately stopped after the heater 7 is turned off by the driving means 20 and the information is notified by the notifying means 21. I do. Therefore, when the user does not have the habit of cleaning the filter 13 and uses it repeatedly, the abnormal condition can be distinguished from other abnormal factors to prevent the temperature from rising excessively near the heater 7 and to ensure safety.

Next, a fifth embodiment of the present invention will be described. When the detected temperature Ts from the temperature sensor 12 is higher than the set value b when the input of the heater 7 is not at the maximum state, the control means 18 in FIG. 1 immediately turns off the heater 7 and then stops the operation. Then, the notification is made by the notification means 21. Other configurations are the same as those of the first embodiment.

The operation of the above configuration will be described. Normally, the input change of the heater 7 during operation is as shown in FIG. 3B, and the input is maximum when the first half is wet. When the object to be dried dries after time t6, the input gradually decreases. The temperature from the temperature sensor 12 is high in the first half, and after time t6, when the input of the heater 7 gradually decreases, the temperature decreases. If the user has no habit of cleaning the filter 13 and uses it repeatedly, the temperature detecting means 14
The reason that the temperature Ts detected by the above is detected by the comparing means 17 to be higher than the set value b is that the input is in the maximum state in many cases. That is, the reason that the temperature Ts detected by the temperature detecting means 14 is higher than the set value b by the comparing means 17 when the input is not in the maximum state is considered to be a factor other than clogging of the filter 13. . When the operation is started in a state in which the object to be dried is freshly dried, that is, in the case of the so-called finish drying, the state where the input at the beginning of the operation is maximum is extremely short in order to prevent the object to be dried from being damaged by hot air. As shown in FIGS. 10A and 10B, when the temperature Ts detected by the temperature detecting means 14 becomes higher than the set value b at time t15 when the input of the heater 7 is not at the maximum state, the driving means 20 After the heater 7 is turned off, the operation is stopped, and the notification unit 21 notifies. Therefore, even in the case of finish drying, filter 1
It is possible to prevent the temperature in the vicinity of the heater 7 from excessively rising due to factors other than the clogging of 3, and to ensure safety.

Next, a sixth embodiment of the present invention will be described. When the detected temperature Ts from the temperature sensor 12 is higher than the set value b when the input of the heater 7 is not in the maximum state, the control unit 18 in FIG. 7 is lowered, and the notification is made by the notification means 21 after the operation is continued for a predetermined time. Other configurations are the same as those in the above embodiment.

The operation in the above configuration will be described. As described above, in the case of finish drying, the state where the input at the beginning of operation is maximum is extremely short. As shown in FIGS. 11A and 11B, when the temperature Ts detected by the temperature detecting means 14 becomes higher than the set value b at time t16 when the input of the heater 7 is not in the maximum state, the driving means 20 After the heater 7 is turned off for the predetermined time T17, the input of the heater 7 is lowered, and the notification unit 21 notifies after the operation is continued for the predetermined time T18. Therefore, even when the user has no habit of cleaning the filter 13 and repeatedly performs the finish drying,
The object to be dried can be dried and the operation can be automatically stopped while ensuring safety by preventing the temperature in the vicinity of the heater 7 from excessively rising. In addition, it is possible to prevent malfunction due to a factor other than clogging of the filter 13.

Next, a seventh embodiment of the present invention will be described. When the control unit 18 in FIG. 1 stores in the storage unit 21 information that the detected temperature Ts from the temperature sensor 12 is higher than the set value b during the previous operation,
When the temperature Ts detected by the temperature sensor 12 becomes higher than the set value b, the heater 7 is immediately turned off, the operation is stopped, and the notification is made by the notifying means 21. Is not higher than the set value b, the information is stored in the storage means 21.
To memorize it. Other configurations are the same as those in the above embodiment.

The operation of the above configuration will be described. If the user has no habit of cleaning the filter 13, if the temperature Ts detected by the temperature detecting means 14 is higher than the set value b for the first time in consideration of usability, The drive unit 20 lowers the input of the heater 7 to continue the operation to dry the object to be dried, and notifies the user by the notifying unit 21. The information that the temperature Ts detected by the temperature detecting means 14 has become higher than the set value b is stored in the storage means 19 and is used when determining the next operation method. If the user performs the next operation without cleaning the filter 13 despite the notification by the notification unit 21, it is detected that the temperature Ts detected by the temperature detection unit 14 during the operation is higher than the set value b. Therefore, regardless of the drying state of the object to be dried, the heater 7 is immediately turned off by the driving unit 20, the operation is stopped, and the notification unit 21 notifies.

When the filter 13 is cleaned by the user by the first notification, the temperature Ts detected by the temperature detecting means 14 in the next operation is not detected if it is higher than the set value b. This information is stored in the storage means 19, and the information that the temperature Ts detected by the temperature detection means 14 in the previous operation was higher than the set value b is deleted. That is, since the temperature Ts detected by the temperature detecting means 14 is higher than the set value b, the driving means 20 lowers the input of the heater 7 to continue the operation and dry the object to be dried. A condition is that the same operation is not performed in the operation. Therefore, the user can be prompted to clean the filter 13 by the notification by the notification means 21, and the safety near the heater 7 can be secured without excessively rising, and the usability can be improved.

In each of the above embodiments, the variable input heater 7 is used as a heat source. However, as shown in FIG. 12, a gas garment having a gas burner 24 as a heat source and a proportional control valve 25 as its control means is used. The same effect can be obtained in a dryer. Further, the storage unit 19 may be configured by a nonvolatile memory.

[0045]

As is apparent from the above embodiments, according to the present invention, a rotating drum for introducing hot air from a heat source to rotate and agitate an object to be dried, a motor for driving the rotating drum and the like, and a rotating drum Drying degree detecting means for detecting the degree of drying of the object to be dried in the inside, a temperature sensor arranged near the heat source, temperature detecting means for detecting the temperature from the temperature sensor, and detection by the temperature detecting means Comparing means for comparing the set temperature with a set value, control means for controlling the operation of the heat source and the motor based on information obtained by the dryness detecting means or the comparing means, and an output of the control means. A drive unit for driving the input of the heat source and the motor; a storage unit for storing an operation content based on an output of the comparison unit; and a notification unit for notifying when the storage content is stored in the storage unit. When the detected temperature from the temperature sensor is higher than a set value, the control means sets the input of the heat source low via the driving means to set a long operation time, and notifies by the notification means after the end of the operation. If the detected temperature from the temperature sensor is higher than a set value even if a predetermined time has elapsed after the operation with the input of the heat source lowered and the operation is performed, the heat source is immediately turned off and the operation is stopped. Since both are notified by the notification means, even when the user does not have a habit of cleaning the filter, the object to be dried can be dried and the operation can be automatically stopped while ensuring safety.

When the detected temperature from the temperature sensor is higher than the set value, the control means turns off the heat source for a predetermined time via the driving means, and then lowers the input of the heat source to extend the operation time. Set and notify by the notification means after the end of the operation, even if the input of the heat source is lowered, if the detected temperature from the temperature sensor is higher than a set value, immediately turn off the heat source and then start the operation. Since it is stopped and notified by the notification means, even if the user does not have a habit of cleaning the filter, the object to be dried can be dried while preventing the temperature rise near the heat source and ensuring safety while automatically drying. Operation can be stopped.

Further, a lid switch is provided which is interlocked with a lid provided at the input port of the rotary drum and inputs its output to the control means, and the control means makes the temperature detected by the temperature sensor higher than a set value. When the input of the heat source is lowered and the lid is opened during the continuation of the operation, the operation is immediately stopped via the driving means and the contents stored in the storage means are erased, so that the user is required to clean the filter. If the filter is used repeatedly without any heat, the temperature rise near the heat source is prevented, the user is notified, and the operation can be performed without any trouble after the filter is cleaned.

When the detected temperature from the temperature sensor becomes higher than the set value within a predetermined time after the start of operation, the control means immediately turns off the heat source, stops the operation, and notifies the notification means. Therefore, it is possible to detect a factor other than clogging of the filter, prevent the temperature near the heat source from excessively rising, and secure safety.

When the detected temperature from the temperature sensor is higher than the set value when the input of the heat source is not in the maximum state, the control means immediately turns off the heat source, stops the operation, and stops the operation. Since the notification is made, it is possible to prevent the temperature in the vicinity of the heat source from being excessively increased due to factors other than clogging of the filter for all the objects to be dried, thereby ensuring safety.

Further, when the detected temperature from the temperature sensor is higher than the set value when the input of the heat source is not in the maximum state, the control means turns off the heat source for a predetermined time and then lowers the input of the heat source. After the operation has been continued for a predetermined time, the alarm is notified by the notification means.If the user does not have the habit of cleaning the filter and repeatedly uses the filter, it is possible to prevent excessive temperature rise near the heat source and ensure the safety while ensuring the safety. Can be dried and malfunctions can be prevented.

Further, in order to achieve the seventh object, the control means of the first means for solving the problem stores in the storage means information indicating that the temperature detected by the temperature sensor during the previous operation is higher than the set value. When the temperature detected by the temperature sensor becomes higher than the set value, the heat source is immediately turned off, the operation is stopped, and the alarm is notified by the notification means. When the detected temperature is not higher than the set value, the information is stored in the storage means.If the user does not have a habit of cleaning the filter and tries to use the filter repeatedly, the temperature near the heat source is reduced. It informs the user that the filter is clogged before it rises excessively, and prompts the user to clean the filter, thereby ensuring safety.

[Brief description of the drawings]

FIG. 1 is a block diagram of a clothes dryer according to a first embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of the clothes dryer.

3 (a) and 3 (b) are main part operation time charts when a temperature detected by a temperature sensor of the clothes dryer is lower than a set value.

4 (a) and 4 (b) are main part operation time charts when a temperature detected by a temperature sensor of the clothes dryer is higher than a set value.

5 (a) and 5 (b) are main part operation time charts when a temperature detected by a temperature sensor of the clothes dryer is higher than a set value and higher than a set value after a predetermined time has elapsed.

FIGS. 6A and 6B are main part operation time charts when a temperature detected by a temperature sensor of a clothes dryer according to a second embodiment of the present invention is higher than a set value;

7 (a) and 7 (b) are main part operation time charts when the detected temperature from the temperature sensor of the clothes dryer is higher than a set value and the detected temperature is again higher than the set value.

8 (a) and 8 (b) are main parts when a user opens a lid while driving is continued while a temperature detected by a temperature sensor of a clothes dryer according to a third embodiment of the present invention is higher than a set value. Operation time chart

FIGS. 9A and 9B are operation timing charts of main parts when the temperature detected by the temperature sensor is higher than a set value within a predetermined time after the operation of the clothes dryer according to the fourth embodiment of the present invention has started.

FIGS. 10A and 10B are main part operation times when a temperature detected by a temperature sensor is higher than a set value when a heater input of a clothes dryer according to a fifth embodiment of the present invention is not in the maximum state; chart

FIGS. 11A and 11B are main part operation times when a temperature detected by a temperature sensor is higher than a set value when a heater input of the clothes dryer according to the sixth embodiment of the present invention is not in the maximum state; chart

FIG. 12 is a longitudinal sectional view of a clothes dryer provided with a gas burner as a heat source according to another embodiment of the present invention.

FIG. 13 is a longitudinal sectional view of a conventional clothes dryer.

FIG. 14 is a perspective view of an electrode of the clothes dryer.

FIG. 15 is a diagram showing a change over time of a detection resistance value of an electrode of the clothes dryer.

[Explanation of symbols]

 Reference Signs List 2 motor 4 rotating drum 7 heater 12 temperature sensor 14 resistance detecting means (dryness detecting means) 15 temperature detecting means 17 comparing means 18 control means 19 storage means 20 driving means 21 reporting means

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-63-260598 (JP, A) JP-A-2-257999 (JP, A) JP-A-4-152994 (JP, A) JP-A-3- 109100 (JP, A) (58) Field surveyed (Int. Cl. ⁷ , DB name) D06F 58/28

Claims (7)

(57) [Claims] 1. A rotating drum for introducing hot air from a heat source to rotate and stir an object to be dried, a motor for driving the rotating drum and the like, and a drying degree detecting means for detecting the degree of drying of the object to be dried in the rotating drum. A temperature sensor disposed in the vicinity of the heat source; a temperature detection unit that detects a temperature from the temperature sensor; a comparison unit that compares a temperature detected by the temperature detection unit with a set value; Control means for controlling the operation of the heat source and the motor based on information obtained by the degree detection means or the comparison means, an input of the heat source and a drive means for driving the motor by an output of the control means, Storage means for storing the operation content based on the output of the comparison means; and notification means for notifying when the operation content is stored in the storage means, wherein the control means detects a temperature detected by the temperature sensor. Is higher than the set value, the input of the heat source is lowered through the driving means to set a longer operation time, and the operation is notified by the notification means after the operation is completed, and the input of the heat source is lowered to operate. If the detected temperature from the temperature sensor is higher than a set value even after a lapse of a predetermined time, the heat source is immediately turned off and the operation is stopped, and a notification is made by the notification means. . When the detected temperature from the temperature sensor is higher than a set value, the control means turns off the heat source for a predetermined time via the drive means, and then lowers the input of the heat source to extend the operation time. Set and notify by the notification means after the end of operation, even if the input of the heat source is lowered, if the detected temperature from the temperature sensor is higher than a set value, immediately turn off the heat source and then start the operation. 2. The clothes dryer according to claim 1, wherein the clothes dryer is stopped and notified by the notification means. 3. A lid switch interlocked with a lid provided at an input port of the rotary drum and inputting its output to a control means,
The control means, when the temperature detected from the temperature sensor is higher than the set value, the input of the heat source is reduced, and the lid is opened during operation continuation, immediately stop the operation via the driving means,
2. The clothes dryer according to claim 1, wherein the contents stored in the storage means are erased. 4. The control means, when the temperature detected by the temperature sensor becomes higher than a set value within a predetermined time after the start of operation,
2. The clothes dryer according to claim 1, wherein the heat source is immediately turned off, the operation is stopped, and the notification is made by the notification means. 5. When the temperature detected by the temperature sensor is higher than a set value when the input of the heat source is not in the maximum state, the control means immediately turns off the heat source, stops the operation, and stops the operation. The clothes dryer according to claim 1, wherein the notification is performed. 6. When the detected temperature from the temperature sensor is higher than a set value when the input of the heat source is not in the maximum state, the control means turns off the heat source for a predetermined time and then lowers the input of the heat source. 2. The clothes dryer according to claim 1, wherein the notification is performed by the notification means after the operation has been continued for a predetermined time. 7. The control device according to claim 6, wherein the information that the detected temperature from the temperature sensor is higher than the set value is stored in the storage device during the previous operation, and the detected temperature from the temperature sensor is higher than the set value. As soon as the temperature rises, the heat source is turned off immediately, then the operation is stopped, and the notification unit is notified.If the detected temperature from the temperature sensor does not become higher than the set value during the current operation, the information is sent to the The clothes dryer according to claim 1, wherein the clothes are stored in a storage unit.