KR100737006B1 - Clothes drier - Google Patents

Abstract

The drying air circulates through the air passage having the radiator and the heat absorber of the heat pump device to dry the clothes. The arranging device arranges the heat in the air passage to the outside. The arrangement device reduces the arrangement in order to warm up the blast quickly during the low temperature at the beginning of the drying operation, and adjusts the arrangement amount and the compression capacity of the compressor after the blast is warmed to prevent the compressor from being overloaded. .

Description

Clothes drying device {CLOTHES DRIER}

BRIEF DESCRIPTION OF THE DRAWINGS The figure which shows the structure of the clothing drying apparatus of Embodiment 1 of this invention.

FIG. 2 is a diagram showing another example of the arrangement device in the clothes drying apparatus of Embodiment 1;

FIG. 3 is a diagram showing still another example of the arrangement device in the clothes drying apparatus of Embodiment 1;

4 is a diagram illustrating still another example of the arrangement device in the clothes drying apparatus of Embodiment 1;

FIG. 5 is a diagram showing still another example of the arrangement device in the clothes drying apparatus of Embodiment 1;

FIG. 6 is a diagram showing still another example of the arrangement device in the clothes drying apparatus of Embodiment 1;

FIG. 7 is a diagram showing still another example of the arrangement device in the clothes drying apparatus of Embodiment 1;

8 is a control flowchart of an arrangement device in the clothes drying apparatus according to the second embodiment of the present invention;

9 is a control flowchart of the arrangement device in the clothes drying apparatus according to the third embodiment of the present invention;

10 is a control flowchart of the arrangement apparatus in the clothes drying apparatus of the fourth embodiment of the present invention;

11 is a control flowchart of the arrangement device in the clothes drying apparatus of the fifth embodiment of the present invention;

12 is a diagram illustrating a configuration of a conventional clothes dryer.

Explanation of symbols for the main parts of the drawings

15 clothing 16: compressor

17: radiator 19: heat absorber

20: pipeline 21: heat pump device

22: drying chamber 23: blower

24: air path 25: arrangement device

26: variable compression capacity

27, 27a, 27b, 27c, 27d: temperature probe

28: control device 50: external temperature detector

The present invention relates to a clothes drying apparatus for drying wet clothes.

12 shows a conventional clothes dryer disclosed in Japanese Patent Laid-Open No. 2001-198396. In the main body 1, the motor 4 rotationally drives the rotating drum 2 and the heat exchange fan 6 via the belts 3 and 14, respectively. The garment 15 is fed into the rotating drum 2 from the front door 5.

Drying air containing moisture evaporated from the garment 15 is sent from the rotating drum 2 to the circulation duct 7 by the heat exchange fan 6. The heat exchange fan 6 flows drying air (arrow A) on one side, and external air (arrow B) on the other side. The drying air and the outside air are heat-exchanged via the heat exchange fan 6, and the drying air arranges a part of the heat quantity it has into the outside air.

The heat absorber 9 and the heat sink 10 of the heat pump apparatus 8 are arranged in the circulation duct 7. The drying air is cooled and dehumidified by the heat absorber 9, heated by the radiator 10, and circulated to the rotary drum 2 again.

The heat pump device 8 includes a compressor 11, a heat absorber 9, a radiator 10, a throttle portion 12 for reducing pressure of a high pressure refrigerant, and a pipe connecting them ( 13). Since the heat amount corresponding to the power consumed by the compressor 11 is accumulated in the heat pump device 8, if the operation is continued without arranging an appropriate amount of heat to the outside, the temperature and pressure of the refrigerant may exceed the allowable value. have. As described above, the conventional clothes drying apparatus arranges a part of the heat of the drying air to the outside through the heat exchange fan 6 in order to operate the heat pump apparatus 8 stably.

However, since the heat exchange fan 6 arranges the heat of the drying air to the outside even when the temperature of the drying air is low at the start of drying, there is a problem that a long time is required to increase the temperature of the drying air. . In particular, in the winter season with low outside temperature, a long time is required.

Clothes drying apparatus of the present invention, a heat pump device having a compressor, a radiator for radiating heat of the refrigerant, a heat absorber for taking heat from the surroundings, and a pipeline through which the refrigerant circulates; A radiator, and a wind path for placing a drying chamber and a heat absorber into which the clothes to be dried are placed as circulation paths; A blower for blowing drying air circulating in the air passage; An arrangement device for arranging the heat in the air passage to the outside; A temperature detector for detecting the temperature of either the drying air or the pipe; A compression capacity variable device for changing the compression capacity of the compressor according to the temperature of the temperature detector; And a control device for controlling the arrangement amount of the arrangement device according to the compression capacity of the compressor and the output of the temperature detector.

The arrangement device reduces the arrangement in order to speed up and warm the air passage during the low temperature at the beginning of the drying operation, and adjusts the arrangement amount and the compression capacity of the compressor after the air passage becomes warm, thereby preventing the compressor from being overloaded. .

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described, referring drawings.

(Embodiment 1)

1 shows a configuration of a clothes drying apparatus of Embodiment 1 of the present invention.

The heat pump apparatus 21 includes a compressor 16 driven by a compressor motor (not shown), a radiator 17 for radiating heat of the compressed refrigerant, and an expansion valve or capillary for reducing the pressure of the high-pressure refrigerant. The throttle part 18 which consists of a capillary tube, the heat absorber 19 which takes heat away from the periphery, and the pipe line 20 are provided.

Drying air is blown into the blower 23 to arrow the air passage 24 having the radiator 17, the drying chamber 22 in which the clothes 15 are placed, the arranging device 25, and the heat absorber 19. It cycles in the direction of (A).

The arrangement | sequence apparatus 25 has the heat exchanger 29 and the blower 30 which were provided in the air path 24, and arrange | positions a part of the heat of drying air outside according to the instruction | indication of the control apparatus 28. As shown in FIG.

The temperature detector 27 detects the temperature of the drying air or the conduit 20 in the vicinity of the radiator 17. The temperature detector 27 is a temperature detector 27a for detecting the drying air temperature after passing through the radiator 17, and a temperature detector mounted on the surface of the conduit 20 to detect the temperature of the refrigerant passing through the radiator 17 ( 27b), the temperature detector 27c mounted on the surface of the conduit 20 to detect the temperature of the refrigerant after passing through the radiator 17, and the temperature detector 27c mounted on the surface of the conduit 20 to detect the refrigerant temperature before passing through the radiator 17. One of the temperature detectors 27d.

The compression capacity variable device 26 changes the compression capacity of the compressor 16 by changing the rotational speed of the compressor motor in accordance with the temperature of the temperature detector 27. The control device 28 controls the arrangement amount of the arrangement device 25 in accordance with the compression capacity of the compressor 16 and the output of the temperature detector 27. The external temperature detector 50 detects an external temperature.

Hereinafter, the operation | movement and action | action with respect to the clothing drying apparatus comprised as mentioned above are demonstrated.

When the drying operation starts, the blower 23 and the compressor 16 operate. At the beginning of the drying operation, the temperature of the temperature detector 27 is less than the first predetermined temperature of 67 ° C. The compressor 16 is driven at 100 rpms of maximum compression capacity.

The control apparatus 28 is a control which reduces the amount of heat dissipation of the arrangement | sequence apparatus 25, when the temperature of the temperature detector 27 is less than 1st predetermined temperature 67 degreeC, and the compression capacity of the compressor 16 is 95 second or more of 2nd predetermined values. Therefore, the blower 30 of the arrangement | positioning apparatus 25 is stopped.

Drying air is heated by the radiator 17, becomes warm air, and is sent to the drying chamber 22. The drying air takes moisture out of the clothes 15 in the drying chamber 22 to dry the clothes 15.

The drying air is lowered in temperature in order to evaporate the moisture in the garment 15, but water vapor having almost the same latent heat is applied. Therefore, the enthalpy of the drying air before and after contacting the clothing 15 is almost constant. Drying air is cooled by the heat absorber 19, and water vapor is condensed and dehumidified. Condensation water is discharged | emitted from the drain opening 31 to the outside. The heat absorber 19 deprives the enthalpy equivalent to the enthalpy given to the drying air by the radiator 17 from the drying air.

In the heat pump apparatus 21, heat of the high temperature and high pressure refrigerant compressed by the compressor 16 is radiated by the radiator 17. The high pressure refrigerant is depressurized by the throttle part 18 to become low pressure and low temperature, and the heat absorber 19 takes heat from the drying air and returns to the compressor 16 again. The amount of heat obtained by adding the heat amount corresponding to the power consumption of the compressor motor to the heat amount taken from the drying air by the heat absorber 19 is radiated from the radiator 17.

Therefore, since the amount of heat from the compressor motor is always newly added, the amount of heat retained in the clothes drying apparatus increases, the temperature of the drying air increases, and the temperature and pressure of the refrigerant in the radiator 17 also increase. The compression capacity variable device 26 reduces the compression capacity by lowering the rotation speed of the compressor 16 in accordance with the increase in the temperature of the temperature detector 27.

When the temperature of the temperature detector 27 is equal to or higher than the first predetermined temperature of 67 ° C, the controller 28 adjusts the arrangement amount of the arraying device 25 when the compression capacity of the compressor 16 becomes less than the first predetermined value of 70 rpm. Operate blower 30 to increase.

Drying air is cooled via the heat exchanger 29 by the outside air sent from the blower 30 between the arranging devices 25. The drying air is further cooled and dehumidified by the heat absorber 19 and then heated by the heat sink 17.

When the sum of the amount of heat naturally radiated at each part of the clothes drying apparatus and the amount of heat forcedly radiated by the arranging device 25 is balanced with the amount of heat newly added from the compressor motor, the total amount of heat is kept constant, The temperature of the air and the temperature and the pressure of the refrigerant are maintained at predetermined values.

When the outside air temperature rises and the arrangement in the arrangement device 25 is not sufficient even when the airflow amount from the blower 30 is maximized, the compression capacity variable device 26 lowers the compression capacity of the compressor 16. The power consumption of the compressor motor is reduced.

As described above, in the present embodiment, at the initial stage of the drying operation, the heat dissipation from the arraying device 25 is minimized, the compression capacity of the compressor 16 is maximized, and the temperature of the drying air is quickly lowered. When the temperature is higher than or equal to the predetermined temperature, the heat dissipation amount and the compression capacity are adjusted to safely dry the compressor 16 without overloading the refrigerant 16 due to overheating of the refrigerant.

When the temperature detector 27 is installed after passing through the radiator 17 in the air passage 24, the temperature of the drying air can be detected directly.

If the temperature detector 27 is provided at an arbitrary position between the inlet and the outlet of the radiator 17 on the pipe line 20, the temperature correlated with the temperature of the drying air can be detected. In addition, since the condensation temperature of the refrigerant can be detected from the temperature of the conduit 20, the high pressure of the refrigeration cycle can be limited by controlling the condensation temperature.

If the temperature detector 27 is installed on the conduit 20 after passing through the radiator 17, the temperature correlated with the condensation temperature of the refrigerant can be detected, so that the high pressure of the refrigeration cycle can be limited by indirectly controlling the condensation temperature. Can be.

If the temperature detector 27 is provided on the conduit 20 before passing through the radiator 17, the discharge temperature of the refrigerant can be detected, and thus the temperature of the compressor motor can be controlled by controlling the discharge temperature. The arrangement | positioning apparatus 25 may not change two values of an operation | movement or a stop, but may control the rotation speed of the blower 30, for example, so that a blow volume may be changed. Various examples of the arraying device 25 are shown below.

FIG. 2 shows an arrangement device 25a of a simple configuration arranged in air by drying on the outer wall of the air path 24.

FIG. 3 shows an arrangement device 25b for arranging from the air for drying by water cooling the outer wall of the air passage 24. When operating the arrangement device 25b, the water supply valve 38 is opened to supply water to the water supply pipe 37.

FIG. 4 shows an arrangement device 25c arranged from the air for drying by spraying cooling water from the outside into the air passage 24. When operating the arrangement device 25c, the water supply valve 40 is opened to spray water into the air passage 24.

FIG. 5 shows an arrangement device 25d having a heat exchanger 41 installed in a conduit 20 between the radiator 17 and the throttle portion 18 and a blower 42 blown by the heat exchanger 41. do.

FIG. 6 shows an arrangement device 25e in which a conduit 20 between the radiator 17 and the throttle portion 18 is provided in the water tank 43. When operating the arrangement device 25e, the water supply valve 44 is opened.

FIG. 7 shows an arrangement device 25f provided between the drying chamber 22 and the heat absorber 19. The arrangement device 25f has one or more vent holes 46. When operating the arranging device 25f, the vent 46 is opened. The heat of the drying air is released through the vent 46. The arrangement amount can be adjusted by the degree of opening of the vent 46.

(Embodiment 2)

8 is a control flowchart of the arrangement device in the clothes drying apparatus according to the second embodiment of the present invention. The same part as Embodiment 1 attaches | subjects the same code | symbol, and detailed description is abbreviate | omitted.

In a state where the arrangement amount of the arrangement device 25 is small, in step S1, it is determined whether the temperature of the temperature detector 27 is 67 ° C. or more of the first predetermined temperature. In the case of less than 67 ° C, the process proceeds to the next step. In the case of 67 ° C or more, the process proceeds to step S2. In step S2, it is determined whether the compression capacity of the compressor 16 is 70 rpm or more of the first predetermined value. If it is 70 rpm or more, the process proceeds to the next step, and if it is less than 70 rpm, the process proceeds to step S3.

In step S3, in order to increase the arrangement amount of the arranging device 25, the blowers 30 and 42 are operated, the water supply valves 38, 40 and 44 are opened or the vent 46 is opened. . In this embodiment, the arrangement | positioning quantity of the arrangement | positioning apparatus 25 is increased and a compression capability is raised. Then, the arrangement amount and the compression capacity are adjusted in accordance with the temperature of the temperature detector 27, and the drying operation is performed while maintaining the compression capacity at a predetermined value or more without causing the compressor 16 to be overloaded.

(Embodiment 3)

9 is a control flowchart of the arrangement device in the clothes drying apparatus of the third embodiment of the present invention. The same part as Embodiment 1 attaches | subjects the same code | symbol, and detailed description is abbreviate | omitted.

In a state where the arrangement amount of the arrangement device 25 is large, in step S11, it is determined whether the temperature of the temperature detector 27 is 63 ° C. or more of the second predetermined temperature. In case of 63 ° C or more, the process proceeds to the next step, and in the case of less than 63 ° C, the process proceeds to step S12. In step S12, it is determined whether the compression capacity of the compressor 16 is 95 rpm or more of the second predetermined value. In the case of less than 95 rpm, the process proceeds to the next step. In the case of 95 rpm or more, the process proceeds to step S13. In step S13, in order to reduce the arrangement amount of the arrangement device 25, the blowers 30 and 42 are stopped, the water supply valves 38, 40 and 44 are closed, or the vent 46 is closed. .

In the present embodiment, while the temperature of the temperature detector 27 is low at the beginning of the drying operation, the amount of heat from the array device 25 is reduced to quickly increase the temperature of the drying air.

(Embodiment 4)

It is a control flowchart of the arrangement | sequence apparatus in the clothing drying apparatus of Embodiment 4 of this invention. The same part as Embodiment 1 attaches | subjects the same code | symbol, and detailed description is abbreviate | omitted.

In a state where the arrangement amount of the arrangement device 25 is small, in step S21, it is determined whether the temperature of the temperature detector 27 is 67 ° C. or more of the first predetermined temperature. In the case of less than 67 ° C, the process proceeds to the next step, and in the case of 67 degrees or more, the process proceeds to step S22. In step S22, it is determined whether the compression capacity of the compressor 16 is 70 rpm or more of the first predetermined value. In case of 70 rpm or more, the process proceeds to the next step, and in case of less than 70 rpm, the process proceeds to step S23. In step S23, it is determined whether the external temperature which the external temperature detector 50 detects is 10 degreeC or more of a 3rd predetermined temperature. In the case of less than 10 ° C, the process proceeds to the next step. In the case of 10 ° C or more, the process proceeds to step S24. In step S24, in order to increase the arrangement amount of the arrangement device 25, the blowers 30 and 42 are operated, the water supply valves 38, 40 and 44 are opened, or the vent 46 is opened. .

In the present embodiment, when the compression capacity is less than 70 rpm of the first predetermined value and the external temperature is high at 10 ° C or higher, the array capacity of the arrangement device 25 is increased to maintain the compression capacity higher. In this way, the drying operation can be performed while keeping the compression capacity high without causing the compressor 16 to become overloaded.

In the case where the external temperature is lower than 10 ° C, the temperature may be too low when the array amount is increased. Therefore, when the output of the temperature detector 27 is higher than 67 ° C of the first predetermined temperature, the compression capacity of the compressor 16 is increased. Even if it is less than this 70 rpm, the array amount does not increase.

(Embodiment 5)

It is a control flowchart of the arrangement | sequence apparatus in the clothing drying apparatus of Embodiment 5 of this invention. The same part as Embodiment 1 attaches | subjects the same code | symbol, and detailed description is abbreviate | omitted.

In the state where the arrangement amount of the arrangement | positioning apparatus 25 is large, it is determined in step S31 whether the temperature of the temperature detector 27 is 63 degreeC or more of 2nd predetermined temperature. In the case of 63 ° C or more, the process proceeds to the next step, and in the case of less than 63 ° C, the process proceeds to step S32. In step S32, it is determined whether the compression capacity of the compressor 16 is 95 rpm or more of the second predetermined value. In the case of less than 95 rpm, the process proceeds to the next step. In the case of 95 rpm or more, the process proceeds to step S33. In step S33, it is determined whether the external temperature which the external temperature detector 50 detects is 5 degreeC or more of a 4th predetermined temperature. In case of 5 ° C or more, the process proceeds to the next step, and in case of less than 5 ° C, the process proceeds to step S34. In step S34, in order to reduce the arrangement amount of the arranging device 25, the blowers 30 and 42 are stopped, the water supply valves 38, 40, 44 are closed, or the vent 46 is closed. .

In the present embodiment, under conditions where the external temperature is lower than the fourth predetermined temperature of 5 ° C. and the natural heat dissipation to the outside is large, the temperature from the array device 25 is reduced while the temperature of the temperature detector 27 is low at the beginning of the drying operation. Reduces the amount of heat quickly increases the temperature of the drying air. On the contrary, when the external temperature is higher than 5 ° C, the arrangement amount is not reduced.

The clothes drying apparatus of the present invention can quickly operate the drying of the drying air at the early stage of drying rapidly and efficiently. It can be widely used for drying laundry.

Claims (8)

In the clothes drying apparatus, A heat pump device having a compressor, a radiator for radiating heat of the refrigerant, an absorber for taking heat from the surroundings, and a conduit through which the refrigerant is circulated; A heat dissipation unit, a drying chamber in which clothes to be dried, and a wind path disposed inside the heat absorber as a circulation path; A blower for blowing drying air circulating in the air passage; An arrangement device for arranging the heat in the air passage to the outside; A temperature detector for detecting a temperature of either the drying air or the pipe line; A compression capacity variable device for changing the compression capacity of the compressor in accordance with the temperature of the temperature detector; And a control device for controlling the arrangement amount of the arrangement device according to the compression capacity of the compressor and the output of the temperature detector. Clothing drying device. The method of claim 1, The control device increases the arrangement amount of the arrangement device when the temperature of the temperature detector is equal to or greater than the first predetermined temperature and the compression capacity of the compressor is less than the first predetermined value. Clothing drying device. The method of claim 1, The control device is configured to reduce the arrangement amount of the arrangement apparatus when the temperature of the temperature detector is less than a second predetermined temperature and the compression capacity of the compressor is equal to or greater than a second predetermined value. Clothing drying device. The method according to any one of claims 1 to 3, The temperature probe is installed at a position immediately after passing through the radiator in the air passage. Clothing drying device. The method according to any one of claims 1 to 3, The temperature probe is installed at any position between the inlet and the outlet of the radiator on the conduit. Clothing drying device. The method according to any one of claims 1 to 3, The temperature detector is installed on the pipe line at least after passing through the radiator or at a position before passing through the radiator. Clothing drying device. The method of claim 1, Further provided with an external temperature detector for detecting the outside temperature, When the temperature of the said external temperature detector is more than a 3rd predetermined temperature, the temperature of the said temperature detector is more than a 1st predetermined temperature, and the compression capacity of the said compressor is less than a 1st predetermined value, it will double the said arrangement apparatus. To increase calories Clothing drying device. The method of claim 1, It is further provided with an external temperature detector for detecting the outside temperature, The control device is configured to double the arraying device if the temperature of the external temperature detector is less than a fourth predetermined temperature, the output of the temperature detector is less than a second predetermined temperature, and the compression capacity of the compressor is equal to or greater than a second predetermined value. Reducing calories Clothing drying device.

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