KR20000023102A - A drier for clothes - Google Patents

Abstract

PURPOSE: A dryer for clothing is provided to prevent the drying operation in the state without installing a filter in a drain hole of a rotating drum. CONSTITUTION: A dyer of clothing has a rotary drum(3) accepting a cloth(A), and dries the cloth by inducing hot wind from an inhaling hole(5) of the rotary drum(3) and by draining moisture air through a filter(14) integrally rotating with the rotary drum when installing in a drain hole(6) to be able to remove. The dryer of clothes prevents the draining of nap or dust from the drain hole not by performing the drying operation in the state without installing the filter in the drain hole of the rotary drum by equipping devices for detecting the filters(15,24) to detect the installation of the filter(14) and a device for forbidding the drying operation(2) to forbid the drying operation when the detecting devices of filter(15,24) detect the filter is not installed.

Description

Clothes Dryer {A DRIER FOR CLOTHES}

The present invention relates to a clothes dryer for drying clothes by accommodating clothes in a rotating drum and supplying hot air to the rotating drum to discharge wet air from the rotating drum.

Conventionally, clothes to be dried are stored in a rotating drum, and heated air is supplied to the rotating drum by heating means such as an electric heater, a gas burner, or a heat exchanger using hot water, and the wet air discharged from the clothes is discharged from the rotating drum. There is known a clothes dryer for drying clothes.

In such a clothes dryer, the wet air discharged from the rotating drum is discharged indoors or outdoors through an exhaust pipe connected to the clothes dryer.

In addition, since the wet air discharged from the rotating drum of the clothes dryer includes the silkworm dust and dust generated from the clothes, the filter is installed in the exhaust port of the rotating drum so that the silkwormwood is not discharged to the room or the exhaust pipe as it is. have.

Here, as the cumulative usage time of the clothes dryer becomes longer, a filter cloth, dust, and the like are attached to the filter mounted on the exhaust port of the rotating drum. When the degree of clogging of the filter is increased due to the attachment of the silt moth, dust, and the like, the amount of wet air discharged from the exhaust port is limited, so that normal drying operation cannot be performed. For this reason, the user must periodically check the clogged state of the filter and clean the filter as necessary.

Here, the cleaning of the filter should be done by removing the filter, and the user who removes the filter may then forget to attach the filter to the exhaust port. In addition, the filter is used only to prevent the discharge of airborne dust or dust in the wet air to the room or the exhaust pipe, and even if the filter is not installed, the operation of the clothes dryer itself does not interfere, so that the user can use the clothes dryer. Can be. Therefore, it is difficult for the user to notice that the filter is not mounted, and there is a concern that the clothes dryer will continue to be used without the filter.

In addition, when the clothes dryer is used in a state in which the filter is not mounted, and the drying operation of the clothes is performed, as described above, the silkwormwood is discharged to the room or the exhaust pipe, and the indoor pollution or the blockage of the exhaust pipe occurs. There was this.

It is an object of the present invention to solve such a problem and to provide a clothes dryer which prevents the drying operation in a state where a filter is not attached to the exhaust port of the rotating drum.

1 is an overall configuration diagram of a clothes dryer.

2 is a control block diagram of a clothes dryer.

3 is an explanatory view of the filter presence detecting means.

4 is a flowchart illustrating the operation of the clothes dryer.

Description of the main parts of the drawing

1 Clothes Dryer 2 Controller

3 rotary drums 4 heat exchanger

5 intake vent 6 exhaust vent

7 intake and exhaust fan 8 motor

9 door 10 door switch

11 Clothing temperature thermistor 12 electrode sensor

13 Exhaust Temperature Thermistor 14 Filter

15 Hall sensor 16 Control panel

17 Wall 18 Vent

19 exhaust pipe 20 water heater

21 Heat sensing valve 22 Hot water supply pipe

23 Hot water collection pipe 24 magnet

30 Motor driver 36 Prohibited means for drying operation

In order to achieve this object, the present invention has a rotating drum for accommodating clothes, introduces hot air from the intake port of the rotating drum, and is mounted on the exhaust port through a filter that is detachably mounted and rotates integrally with the rotating drum, The present invention relates to an improvement of a clothes dryer for carrying out a drying operation for drying clothes by discharging wet air from an exhaust port of the same.

Thus, there is provided a filter presence detecting means for detecting the presence or absence of the filter and an operation prohibiting means for prohibiting the drying operation when the filter presence detecting means detects that the filter is not mounted.

According to the present invention, if it is detected by the filter presence detecting means that the filter is not mounted in the exhaust port of the rotating drum, the operation prohibition means prevents the drying operation of the clothes dryer. Therefore, the drying operation is performed in a state where the filter is not attached, and it is possible to prevent the solid waste, dust and the like from being discharged from the exhaust port.

In addition, when it is detected that the filter is not mounted by the filter presence detection means, it is characterized in that a notification means for informing the user that the filter is not mounted.

According to the present invention, when it is detected that the filter is not mounted by the filter presence detecting means, it is known to the user that the filter is not mounted by the notification means. In this way, it is possible to prevent the filter from being mounted so that the drying operation can be continued without the filter being mounted.

In addition, the wet air discharged from the exhaust port is characterized in that the exhaust through the exhaust pipe.

When a clothes dryer is used in a multi-family house such as a mansion, a long exhaust pipe leading to the outdoors such as a veranda or a corridor through the ceiling is often connected to the clothes dryer. In addition, when such an exhaust pipe is clogged by a thread, dust, or the like discharged from a clothes dryer, a large-scale recovery measure is required, such as breaking a part of the ceiling to break the blockage. Therefore, it is particularly effective to prevent the drying operation from being carried out or continued to the clothes dryer for discharging the wet air through such an exhaust pipe in a state where the filter is not mounted by the above operation prohibition means or notification means.

In addition, the filter presence detecting means is characterized in that it is composed of a magnet attached to the filter and a Hall sensor installed on the main body side for supporting the rotating drum to detect the presence or absence of the magnet.

According to this invention, when the filter is attached, the magnet attached to the filter is detected by the Hall sensor on the main body side, but when the filter is not attached, the magnet is not detected. Therefore, by detecting the presence or absence of the magnet attached to the filter by the Hall element on the main body side, it is possible to detect whether the filter that rotates together with the rotating drum is detected.

In addition, the filter presence detecting means is characterized in that it comprises a magnet attached to the filter and a reed switch having a contact point which is provided on the main body side supporting the rotating drum and opened and closed according to the magnetic field produced by the magnet.

As a device for detecting a magnet, a lead switch in which a pair of lead pieces (metal pieces) made of magnetic material are polymerized at regular intervals to form a contact, and the contact is sealed with an inert gas inside a glass tube is widely used. When the magnet attached to the filter approaches the lead switch provided on the main body side, the magnetic attraction force is generated by the magnetic field generated by the magnet, and the magnetic attraction force overcomes the mechanical elastic force of the lead piece to close the contact. On the other hand, if the filter is not attached, the magnetic field of the magnet is not applied to the reed switch, so that the contact is opened by the mechanical elastic force of the lead piece. Therefore, by detecting the presence or absence of the magnet attached to the filter from the open / closed state of the reed switch on the main body side, it is possible to detect whether or not the filter which is integrally rotated with the rotating drum is detected.

The filter presence detecting means includes a reflector attached to the filter, a light emitting element and a light receiving element provided on a main body side that supports the rotating drum, and emit light from the light emitting element. Characterized in that it consists of a reflective photo sensor for receiving the light reflected from the light receiving element.

According to the present invention, when the filter is mounted, the light emitted from the light emitting element of the photosensor is reflected by the reflector attached to the filter, is received by the light receiving element of the photosensor and the light receiving element is turned on, but the filter is mounted. Otherwise, since the light emitted from the light emitting element is not reflected, the light receiving element is turned off. Therefore, by detecting ON / OFF of the light receiving element, it is possible to easily detect whether or not the filter that rotates with the rotating drum is mounted on the main body side.

Embodiment of the invention

One example of embodiment of the present invention will be described with reference to FIGS. 1 to 4. 1 is an overall configuration diagram of the clothes dryer of the present invention, FIG. 2 is a control block diagram of the clothes dryer shown in FIG. 1, FIG. 3 is an explanatory view of a filter presence detection means, and FIG. 4 is an operation flowchart of the clothes dryer.

In Fig. 1, the clothes dryer 1 according to the embodiment of the present invention is controlled by a controller 2 composed of a CPU, a ROM, a RAM, and the like, and a rotating drum in which clothes A, which is a dry object, is stored. (3) and the hot water heat exchanger (4) which heats the air supplied to the rotating drum, and the air heated by the heat exchanger (4) is sucked from the intake port (5) to the rotating drum (3) and rotated. An intake and exhaust fan 7 for discharging the wet air discharged from the clothes A in the drum 3 from the exhaust port 6, a motor 8 for rotating the intake and exhaust fan 7 and the rotating drum 3; The door switch 10 for detecting the opening / closing state of the door 9 of the rotating drum 3, the clothes temperature thermistor 11 for detecting the temperature of the clothing A in the rotating drum 3, and the electrodes A and B. An electrode sensor 12 that turns ON / OFF according to the wetness of the clothing A in contact with the liver, an exhaust temperature thermistor 13 that detects the temperature of the wet air discharged from the exhaust port 6, and a filter 1 4) a control panel 16 provided with a magnet 24 mounted in 4), a hall sensor 15 for detecting whether the filter 14 is mounted in the exhaust port 6, a switch operated by a user, or the like; It is provided.

In the clothes dryer 1 of the present embodiment, the wet air discharged from the exhaust port 6 passes outdoors through the exhaust pipe 19 passing through the ceiling and communicating with the ventilation port 18 provided on the wall surface 17 such as the veranda. To be discharged. Further, by removing the heat sensing operation valve 21a for opening and closing the hot water supply supply pipe 22 and the heat sensing operation valve 21b for opening and closing the hot water supply return pipe 23, the water heater 20 and the heat exchanger 4 are opened. Hot water is circulated through the hot water supply pipe 22 and the hot water collection pipe 23.

The filter 14 attached to the exhaust port 6 is for preventing the solid waste and dust generated in the clothing A from being discharged to the exhaust pipe 19. When the clothes are dried with the clothes dryer 1, the filter 14 is gradually attached with dust, dust or the like. Then, when the amount of dust and dirt adhering to the filter 14 increases, the load at the time of discharging the wet air from the exhaust port 6 increases, and normal drying operation cannot be performed. Therefore, the filter 14 is detachable from the exhaust port 6, and the user can remove the filter 14 from the exhaust port and clean it.

In order to detect whether the filter 14 is attached to the exhaust port 6, a magnet 24 is integrally attached to the filter 14. In FIG. 3A, when the filter 14 is attached to the exhaust port 6 of the rotating drum 3, while the filter 14 is rotated together with the rotating drum 3, the hall sensor 15 is used. The magnet 24 attached to the filter 14 is necessarily detected. In contrast, when the filter 14 is not attached, the magnet 24 is not detected by the hall sensor 15.

In FIG. 2, the detection signal of the magnet 24 output from the hall sensor 15 is input to the controller 2. Therefore, the controller 2 checks whether or not the detection signal of the magnet 24 is output from the hall sensor 15 while the rotating drum 3 is rotating one time, thereby rotating the filter 14 together with the rotating drum. Easily check whether or not it is installed. That is, the filter presence detection means of this invention is comprised by the magnet 24 attached to the hall sensor 15 and the filter 14. As shown in FIG.

Furthermore, in FIG. 2, the controller 2 has an open / close detection signal of the door 9 output from the door switch 10 and a temperature detection signal output from the clothes temperature thermistor 11 and the exhaust temperature thermistor 13. And a dryness detection signal output from the electrode sensor 12 is input. In FIG. 1, by means of these detection signals, the controller 2 controls the opening and closing state of the door 9, the temperature of the clothes A in the rotating drum 3, the temperature of the air discharged from the exhaust port 6, and the clothes. Check the dryness of (A). In addition, the electrode sensor 12 is turned on when the resistance value between the electrodes a and b (larger becomes larger as the clothes to be contacted to dry) becomes equal to or more than a predetermined level (a few kW).

In addition, in Fig. 2, by the control signal output from the controller 2, the rotation operation / rotation stop of the motor 8 through the motor driver 30 and the opening / closing of the heat sensing operation valves 21a and 21b. The lungs are controlled. Furthermore, the hot water heater 20 starts to operate by the hot water supply instruction signal output from the controller 2 to the hot water heater 20, and becomes a standby state. Then, as shown in FIG. 1, when the heat sensing operation valves 21a and 21b are opened, hot water at a predetermined temperature (for example, 80 ° C.) is supplied from the hot water supply machine 20 to the heat exchanger 4 through the hot water supply supply pipe 22. do.

In Fig. 2, the operation panel 16 includes a power switch 31 for instructing start and stop of power supply to the clothes dryer 1, a start switch 32 for instructing start and stop of a drying operation, The display unit 33 for displaying the remaining time of the drying operation, the voice unit 34 (corresponding to the notification means of the present invention) and the filter 14 (see Fig. 1) for notifying the user by voice of the end of the drying operation are It is provided with a filterless lamp 35 (corresponding to the notification means of the present invention) which lights up when not mounted.

Next, with reference to FIG. 1, FIG. 2, operation control of the clothing dryer 1 by the controller 2 is demonstrated according to the flowchart shown in FIG. In step 1 of FIG. 4, when the user operates the power switch 31 of the operation panel 16 (see FIG. 2) to ON, power is supplied to the clothes dryer 1 so that the controller 2 starts operation. . The controller 2 first waits for the user to operate the start switch 32 of the operation panel 16 in step 2. When the user who puts clothing A into the rotating drum 3 and finishes the drying operation operates the start switch 32, the process proceeds to step 3, and the controller 2 outputs the hot water supply indication signal to the hot water heater 20. do. As a result, the hot water heater 20 is in the standby state as described above.

In the following step 4, the controller 2 confirms whether or not it forgets to close the door 9 of the rotary drum 3 in accordance with the open / close detection signal from the door switch 10. When it is confirmed that the door 9 is in the closed state, the process proceeds to step 5 where the controller 2 starts the rotation operation of the motor 8 through the motor driver 30, and the rotation of the motor 8 is performed. In conjunction with this, rotation of the rotating drum 3 and the intake and exhaust fan 7 is also started (see FIG. 1).

Subsequent step 6 and step 20 to step 23 are processing by the drying operation prohibiting means 36 (see FIG. 2) provided in the controller 2. As described above, when the filter 14 is attached to the exhaust port 6, the magnet 24 is always detected by the hall sensor 15 while the rotating drum 3 is rotated once. Therefore, the magnet detection signal from the Hall sensor 15 was inputted at the stem 5 until 5 seconds (the time set by the rotation drum 3 longer than the time required for one rotation) elapses at step 20. At that time, the drying operation prohibiting means 36 determines that the filter 14 is attached, and proceeds to step 7. Steps 7 to 12 are the flows of the drying operation.

The controller 2 opens the heat sensing operation valve 20 in step 7. Thus, as shown in FIG. 1, hot water at 80 ° C. is supplied from the hot water heater 20 to the heat exchanger 4 through the hot water supply pipe 22. Then, the air heated in the heat exchanger (4) becomes hot air by the operation of the intake and exhaust fan (7) and is introduced into the rotary drum (3) from the intake port (5) to start the drying operation.

In step 8, the controller 2 determines from the relationship between the temperature in the rotating drum 3 detected by the clothes thermistor and the temperature of the air discharged from the exhaust port 6 detected by the exhaust thermistor 13. The time required for drying A) is calculated, and the calculated time is the remaining time until the end of the drying operation, and is displayed on the display unit 33 of the operation panel 16. During the drying operation, the controller 2, in step 9, detects the detected temperature of the clothing A output from the clothing temperature thermistor 11, the detected temperature of the exhaust air output from the exhaust temperature thermistor 13, and the electrode sensor ( Monitor the resistance detection signal output from 12). Thus, the detection temperature of the clothes exceeds 55 ° C, the detection temperature of the exhaust air exceeds 60 ° C, and the degree that the electrode sensor is turned on (the clothing A in contact with the electrodes a and b has become dry). Degree) exceeds the predetermined level, it is determined that the clothing A is dried, and the flow proceeds to step 10.

Then, the controller 2 closes the heat sensing operation valve 20 in step 10, stops the motor 8 in step 11, and the drying operation is performed in the audio unit 34 of the operation panel 16 in step 12. The drying operation is terminated by outputting a sound (for example, "operation is complete") indicating the end of the operation.

On the other hand, when 5 seconds have elapsed in step 20 without outputting the detection signal of the magnet 24 from the hall sensor 15 in step 6, the drying operation prohibiting means 36 is equipped with a filter 14 in the exhaust port 6. I judge that it was not. Then, the process proceeds from step 20 to step 21, where the drying operation prohibiting means 36 stops the motor 8 through the motor driver 30, and stops the rotation operation of the rotating drum 3 and the intake and exhaust fan 7. Let's do it.

In the following step 22, the drying operation prohibiting means 36 lights up the filterless lamp 35 (corresponding to the notification means of the present invention) of the operation panel 16, and in step 23, the audio unit 34 (of the present invention). From the notification means, a voice (for example, "no filter is attached") indicating that the filter 14 is not mounted is output. The process of step 22 and step 23 can prompt the user to mount the filter 14.

Then, since the drying operation prohibiting means 36 waits for the power switch 31 to be turned OFF in step 24, the clothes dryer 1 maintains the state in which the drying operation is prohibited. After the user operates the power switch 31 to the OFF position, the filter 14 is attached to the exhaust port 6 to operate the power switch 31 to ON, thereby releasing the dry operation prohibition state of the clothes dryer 1. Can be.

By the process according to the drying operation prohibiting means 36 of step 6 and step 20-step 23 demonstrated above, execution of the drying operation of step 7-12 is prohibited when the filter 14 is not attached. As a result, as shown in FIG. 1, the drying operation is performed in a state where the filter 14 is not attached to the exhaust port 6, and the solid waste and dust generated from the clothing A are discharged to the exhaust pipe 19 as it is. 19) It is prevented from being blocked by this thread.

Here, as shown in FIG. 1, in a collective house such as a mansion, an arrangement place of the ventilation opening 18 is limited to the veranda side or the corridor side. Therefore, the exhaust pipe 19 provided from the place where the clothes dryer 1 is installed (near the bath) to the ventilation opening 18 passes through the ceiling and lengthens. For this reason, the exhaust pipe is blocked by a thread and the like, and in order to penetrate the blockage, a large-scale repair such as cleaning part of the ceiling by cleaning a part of the ceiling is required. Therefore, as described above, when the filter 14 is not attached, it is particularly effective to perform a process of prohibiting the drying operation of the clothes dryer 1 by the drying operation prohibiting means 36.

In addition, in this embodiment, although the clothes dryer 1 which discharges the wet air discharged | emitted from the rotating drum 3 through the exhaust pipe 19 was disclosed, you may discharge | evaporate wet air indoors. In this case, by the drying operation prohibiting means 36, the drying operation in the state in which the filter 14 is not mounted is prohibited, whereby the room can be prevented from being contaminated by solid waste, dust and the like.

In addition, as shown in FIG. 3A, the filter presence detecting means is composed of a magnet 24 mounted to the filter 14 and a Hall sensor 15 provided on the main body side to detect the presence or absence of the magnet 24. Instead of the hall sensor 15, a reed switch having a contact opening and closing according to the magnetic field produced by the magnet 24 may be provided, and the reed switch and the magnet 24 may constitute filter presence detection means. In this case, when the filter 14 is attached to the exhaust port 6, the contact of the reed switch is closed. In this way, the presence or absence of the filter 14 can be detected by detecting the open / closed state of the reed switch contact.

As shown in FIG. 3B, the filter presence detecting means may be constituted by the reflector 40 mounted on the filter 14 and the reflection type photo sensor 41 provided on the main body side. In this case, when the filter 14 is attached to the exhaust port 6, the light irradiated from the light emitting element 42 (light emitting diode or the like) of the photosensor 41 is reflected by the reflector 40 and receives the light receiving element ( 43) (phototransistor, etc.). As a result, the presence or absence of the filter 14 can be detected by detecting the ON / OFF state of the light receiving element 43.

Further, as shown in FIG. 3C, the filter presence detecting means is provided with a projection 44 provided on the filter 14, and a switch provided on the main body side and turned ON (closed) by the depression of the projection 44 ( 45) a filter presence detecting means may be configured. In this case, the presence or absence of the filter 14 can be detected by detecting ON / OFF of the switch 45. FIG.

In addition, in this embodiment, although the hot water heater 20 which starts operation | movement according to the hot water supply instruction | command signal from the clothes dryer 1 was used, the heat sensing operation valve 21a and the heat sensing operation valve 21b are opened. You may use the hot water heater which detects the flowing water from the generated hot water heater to the heat exchanger 4, and starts operation.

In addition, in this embodiment, although the clothes dryer which supplies the air heated by the hot water type | mold heat exchanger 4 to the rotating drum 3 was disclosed, the air heated by the burner or the electric heater was sent to the rotating drum 3; The clothes dryer may be supplied.

In addition, in this embodiment, when the filter 14 is not attached to the exhaust port 6, the drying operation prohibition process by the dry operation prohibition means 36, the filterless lamp 35, and the audio unit 34 are carried out. Although two methods of notification processing by the (notification means of the present invention) have been implemented, the effect of the present invention can be obtained by only one of the methods.

As described above, the clothes dryer of the present invention has a rotating drum 3 for accommodating the clothes A, introduces hot air from the intake port 5 of the rotating drum 3, and exhausts the exhaust drum of the rotating drum 3. In the clothes dryer 1, which is detachably attached to the exhaust port 6 from 6, and performs a drying operation for drying clothes by discharging wet air through a filter 14 which rotates integrally with the rotary drum 3, When the filter 14 is not detected by the filter presence detecting means 15, 24 and the filter presence detecting means 15, 24, the drying operation is executed. By providing the prohibition of dry operation means 2, it is possible to prevent the drying operation from being carried out in the state in which the filter is not attached to the exhaust port of the rotating drum, thereby preventing the exhaustion of dust or dust from the exhaust port.

Claims (6)

It has a rotating drum for accommodating clothes, and introduces hot air from the inlet of the rotating drum to discharge the wet air from the exhaust port of the rotating drum through a filter which is detachably attached to the exhaust port and rotates integrally with the rotating drum. In the clothes dryer for drying operation to dry the clothes by A clothes having a filter presence detecting means for detecting whether the filter is attached and a dry operation prohibiting means for prohibiting the execution of the drying operation when the filter is not detected by the filter presence detecting means. dryer. It has a rotating drum for accommodating clothes, and introduces hot air from the inlet of the rotating drum to discharge the wet air from the exhaust port of the rotating drum through a filter which is detachably attached to the exhaust port and rotates integrally with the rotating drum. In the clothes dryer for drying operation to dry the clothes by Filter presence detection means for detecting whether the filter is mounted, and a notification means for notifying the user that the filter is not mounted when the filter presence detection means detects that the filter is not mounted. Clothes dryer. The clothes dryer of claim 1 or 2, wherein the wet air discharged from the exhaust port is exhausted through an exhaust pipe. The said filter presence detection means is a magnet attached to the said filter, and it is provided in the main body side which supports the said rotating drum, The presence or absence of the said magnet is detected in any one of Claims 1, 2, or 3. Clothes dryer, characterized in that consisting of a hall sensor. The magnetic field detector according to any one of claims 1, 2, or 3, wherein the filter presence detecting means is provided on a magnet attached to the filter and on a main body side supporting the rotating drum. Clothes dryer, characterized in that consisting of a reed switch having a contact opening and closing along. The filter presence detecting means according to any one of claims 1, 2 or 3, wherein the filter presence detecting means comprises a reflector attached to the filter, a light emitting element and a light receiving element provided on a main body side supporting the rotating drum. And a reflective photo sensor configured to receive light emitted from the light emitting element and reflected from the reflector by the light receiving element.