WO2016058276A1

WO2016058276A1 - Clothes dryer control method and clothes dryer

Info

Publication number: WO2016058276A1
Application number: PCT/CN2014/095710
Authority: WO
Inventors: 邴进东; 路三伟; 刘秀姣; 刘庆伟
Original assignee: 青岛胶南海尔洗衣机有限公司
Priority date: 2014-10-15
Filing date: 2014-12-30
Publication date: 2016-04-21
Also published as: CN105568648A

Abstract

A clothes dryer control method and a clothes dryer. The clothes dryer control method comprises: heating air in a clothes dryer and forming closed circulation when a clothes drying procedure is started, and blowing air to a condenser to condense vapor in air flowing through the condenser when the temperature and/or humidity in the clothes dryer reaches a preset value. Also provided is a clothes dryer using the control method. According to the clothes dryer control method, at the initial stage of the clothes drying procedure, air is not blown to the condenser to reduce heat exchange at the condenser so that the temperature of air in the clothes dryer rises rapidly; and when the temperature and/or humidity in the clothes dryer reaches a preset value, air is blown to the condenser to condense vapor in the air. In this way, the heating speed and condensation efficiency of the clothes dryer can be effectively improved and energy consumption can be greatly reduced.

Description

Dryer control method and clothes dryer

This patent application is filed on October 15, 2014, the application number is 201410546825.3, the applicant is Qingdao Jiaonan Haier Washing Machine Co., Ltd., and the Chinese patent application titled "Control Method and Dryer of Dryer" is preferred. The entire contents of this application are incorporated herein by reference.

Technical field

The invention relates to the technical field of clothes drying equipment, in particular to a dryer control method and a clothes dryer adopting the same.

Background technique

The conventional condensing dryer has two fans, a process fan and a condensing fan. The two fans are driven by the same motor. When the drying program is started, the heating component works to generate hot air, and the hot air enters the drum. Wet clothing, at which time the hot air becomes hot and humid air. Under the action of the process fan, the hot and humid air enters the condensation air passage. There is a condenser in the condensation air passage. The condensation fan blows air to the condenser to condense the moisture in the hot and humid air into water droplets. Outside the dryer, the air passing through the condensed air duct becomes dry again, and the dry air passes through the heating member to become hot air into the drum, so that the water in the underwear is taken away to achieve the effect of drying the clothes.

In the above process, the two fans are turned on at the same time. However, in the initial stage of the drying process, the water vapor in the clothes has not come out, and even if the condensing fan is working, the water cannot be condensed; and because of the ambient temperature in the initial dryer Low, even if the air contains water vapor, because the temperature is not high, the condensed water can not be precipitated, the condensation efficiency is not high, and the cooling wind generated by the condensing fan will take away the heat used to heat the clothes, resulting in waste of energy.

In view of the above problems, there is a need for a new dryer control method and a clothes dryer to solve the problems of the prior art drying machine having a long heating time, slow heating, low condensation efficiency, and high energy consumption.

Summary of the invention

An object of the present invention is to provide a dryer control method capable of effectively increasing the heating rate of the dryer, increasing the condensation efficiency, and reducing the energy consumption.

Still another object of the present invention is to provide a clothes dryer which has a high heating rate, high condensation efficiency, and low energy consumption.

To this end, in one aspect, the present invention employs the following technical solutions:

A drying machine control method, wherein when the drying process is started, the air in the dryer is heated and forms a closed loop, when the temperature and/or humidity in the dryer reaches a preset value The condenser is blown to condense water vapor in the air flowing through the condenser.

In another aspect, the invention employs the following technical solutions:

A clothes dryer adopting the above control method, comprising a control unit, a first fan and a condenser with a second fan, after the drying program is started, the control unit controls to open the first fan to drive the dryer The air is heated to form a closed loop. After the temperature and/or humidity in the dryer reaches a preset value, the control unit controls to turn on the second fan, and blows the condenser to flow through the condenser. The water vapor in the air condenses.

Preferably, the first fan and the second fan are driven by two different motors.

Preferably, the first fan and the second fan are driven by a same motor, and a clutch device is disposed between the driving shaft of the motor for driving the second fan and the second fan.

Preferably, the dryer is provided with a first air passage communicating with the drum, the drum and the first air passage forming a sealed circulation duct, and the condenser and the first fan are disposed on Within the first air duct.

Preferably, a temperature sensor and/or a humidity sensor connected to the control unit is disposed at a position near the drum air outlet in the first air duct.

In a further aspect, the invention adopts the following technical solutions:

A clothes dryer adopting the above control method, comprising a control unit, a first fan and a condenser with a second fan, further comprising an opening and closing device, the control unit controls the opening and closing device to be closed when the drying program is started The air inlet or the air outlet of the second fan, the first fan drives the air in the dryer to form a closed loop after heating, and when the temperature and/or humidity in the dryer reaches a preset value, the control unit Controlling the opening and closing device to open an air inlet or an air outlet of the second fan, the second fan to the The condenser blows to condense water vapor in the air flowing through the condenser.

Preferably, the dryer is provided with a second air duct of the air outlet facing the condenser, the second fan is disposed in the second air duct, and the opening and closing device is disposed on the second wind At the air inlet or outlet of the road.

Preferably, the opening and closing device is a damper.

The beneficial effects of the invention are:

The drying machine control method provided by the invention is that in the initial stage of the drying process, the air in the dryer is heated and forms a closed loop. At this time, the condenser is not blown, and the heat exchange at the condenser is lowered, thereby making the drying The air in the machine heats up rapidly, so that the moisture in the clothes is fully evaporated into water vapor. When the temperature and/or humidity in the dryer reaches a preset value, the air is blown to the condenser to condense the water vapor in the air. This can effectively increase the heating rate and condensation efficiency of the dryer, and greatly reduce energy consumption.

The clothes dryer provided by the invention adopts the above control method, has a fast heating rate, high condensation efficiency and low energy consumption.

DRAWINGS

1 is a schematic structural view of a clothes dryer according to Embodiment 1 of the present invention;

2 is a diagram showing an internal air flow direction of a clothes dryer according to Embodiment 1 of the present invention;

Figure 3 is a second diagram of the internal air flow direction of the clothes dryer according to the first embodiment of the present invention;

4 is a schematic structural view of a clothes dryer provided in Embodiment 2 of the present invention;

FIG. 5 is a schematic structural view of a clothes dryer provided in Embodiment 3 of the present invention.

In the figure, 1, the control unit; 2, the drum; 3, the first air passage; 31, the second air duct inlet; 32, the condensing air outlet; 4, the condenser; 5, the first fan; 6, the temperature sensor; 7, the second air duct; 8, the second fan; 9, the motor; 10, clutch device; 11, the damper.

detailed description

The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

The invention provides a dryer control method, in the initial stage of the drying process, to the inside of the dryer The air is heated and forms a closed loop. At this time, the condenser is not blown, and the heat exchange at the condenser is lowered, so that the air in the dryer is rapidly heated, thereby causing the water in the laundry to evaporate sufficiently into water vapor. After the internal temperature and/or humidity reaches the preset value, the condenser is blown to condense the water vapor in the air, which can effectively increase the heating rate and the condensation efficiency of the dryer, and greatly reduce the energy consumption.

The above control method will be described below with reference to a specific dryer embodiment.

Embodiment 1:

The embodiment provides a clothes dryer, as shown in FIG. 1, which has a control unit 1, a heating member (not shown) for heating the air in the dryer, and a garment for placing clothes. The drum 2 and the first duct 3 communicating with the drum 2, the drum 2 and the first duct 3 form a sealed circulating duct. A condenser 4 and a first fan 5 are provided in the first duct 3 for driving air in the dryer to flow in the circulation duct formed by the drum 2 and the first duct 3.

A temperature sensor 6 connected to the control unit 1 is mounted in the first air duct 3 near the air outlet of the drum 2.

A second air duct inlet 31 is opened at a position corresponding to the condenser 4 on the first air duct 3, and a second air duct 7 with an air outlet facing the condenser 4 is disposed in the dryer, and the second air duct 7 is provided at one end. The external environment is connected, and the other end is connected to the first air passage 3 through the second air duct inlet 31. A second fan 8 is provided in the second air duct 7, and the second fan 8 is for blowing air having a lower external temperature into the condenser 4 to condense the condenser 4. A condensing air outlet 32 is opened on a side of the first air passage 3 opposite to the second air duct inlet 31, so that the cold air blown by the second fan 8 condenses the condenser 4 and is blown out by the condensing air outlet 32 to prevent condensation wind. Mixing into the first air passage 3 reduces the temperature in the first air passage and affects the drying efficiency.

The first fan 5 and the second fan 8 are driven by the same motor 9, and one end of the drive shaft of the motor 9 is connected to the first fan 5, and the other end is connected to the second fan 8 via the clutch device 10.

The control method of the dryer is that after the drying program is started, the control unit 1 controls the heating unit to be turned on for heating, simultaneously turns on the motor 9, and controls the clutch device 10 to disconnect the second fan 8 from the motor drive shaft, the motor The driving shaft of 9 drives only the first fan 5 to rotate. As shown in FIG. 2, the first fan 5 drives the air in the dryer to form a closed loop between the drum 2 and the first air duct 3, and at this time, the second fan 8 The closing, thereby reducing the heat exchange at the condenser 4, causes the air in the dryer to rapidly heat up, and the moisture in the laundry is sufficiently evaporated into water vapor. At the same time, the temperature sensor 6 detects the empty flow of the outflow drum 2 in real time. The temperature of the gas and the current temperature signal are transmitted to the control unit 1.

The preset temperature value is pre-stored in the control unit 1. In this embodiment, the preset temperature value is 60 °C. When the detected current temperature value reaches or exceeds the preset temperature value, as shown in FIG. 3, the control unit 1 controls the clutch device 10 to link the drive shaft of the motor 9 with the second fan 8, and the second fan 8 compares the external temperature. Low air (generally about 20 ° C) is blown into the condenser 4, and the temperature difference of about 40 ° C can quickly condense the water vapor in the air flowing through the condenser 4, thereby greatly improving the condensation efficiency.

Wherein, it is not limited to determining whether the second fan needs to be turned on by the temperature value or only the temperature value, and the humidity sensor may be installed in the first air passage, and the air humidity or the temperature and the air humidity are combined to determine whether the second need to be opened. fan.

Embodiment 2:

The embodiment provides a clothes dryer, as shown in FIG. 4, the basic structure is the same as that of the first embodiment, and includes a control unit 1, a heating component for heating the air in the dryer (not shown) The drum 2 for placing the laundry and the first air duct 3 communicating with the drum 2. A condenser 4 and a first fan 5 are disposed in the first air passage 3. The dryer is also provided with a second air duct 7 whose air outlet faces the condenser 4. One end of the second air duct 7 communicates with the external environment, and the other end communicates with the first air duct 3. A second fan 8 is disposed in the second air duct 7. A temperature sensor 6 connected to the control unit 1 is mounted in the first air duct 3 near the air outlet of the drum 4.

The first fan 5 and the second fan 8 are respectively driven by different motors 9 in the embodiment, and the first fan 5 and the second fan 8 can also be separately controlled to start and stop.

The control method of the dryer in this embodiment is similar to that in the first embodiment, and details are not described herein again.

Embodiment 3:

The embodiment provides a clothes dryer, as shown in FIG. 5, the basic structure is the same as that of the first embodiment, and includes a control unit 1, a heating component for heating the air in the dryer (not shown) The drum 2 for placing the laundry and the first air duct 3 communicating with the drum 2. A condenser 4 and a first fan 5 are disposed in the first air passage 3. The dryer is also provided with a second air duct 7 whose air outlet faces the condenser 4. One end of the second air duct 7 communicates with the external environment, and the other end communicates with the first air duct 3. A second fan 8 is disposed in the second air duct 7. A temperature sensor 6 connected to the control unit 1 is mounted in the first air duct 3 near the air outlet of the drum 4.

The difference is that in the embodiment, the first fan 5 and the second fan 8 are driven by the same motor 9 and start and stop at the same time. An opening and closing device is provided at the air outlet of the second air duct 7. In the present embodiment, the opening and closing device is the damper 11, and the opening and closing of the damper 11 is controlled by the control unit 1.

The control method of the clothes dryer is: after the drying program is started, the control unit 1 controls the heating component to be turned on for heating, and the motor 9 is turned on to drive the first fan 5 and the second fan 8 to rotate simultaneously, and at the same time, the control unit 1 controls The damper 11 is closed, thereby blocking the second fan 8 from blowing cold air to the condenser. At the same time, the temperature sensor 6 detects the temperature in real time and transmits the current temperature signal to the control unit 1. When the detected current temperature value reaches or exceeds the preset temperature value pre-existing in the control unit 1, the control unit 1 controls the opening of the damper 11 so that the second fan 8 blows air having a lower external temperature into the condenser 4.

In addition, the control unit 1 can also control the degree of opening of the damper 11 according to the current temperature, thereby further improving the condensation efficiency.

The opening and closing device is not limited to being disposed at the air outlet of the second air duct 7, but may be disposed at the air inlet position of the second air duct 7, and the above effects can also be achieved.

The technical principles of the present invention have been described above in connection with specific embodiments. The descriptions are merely illustrative of the principles of the invention and are not to be construed as limiting the scope of the invention. Based on the explanation herein, those skilled in the art can devise various other embodiments of the present invention without departing from the scope of the invention.

Claims

A drying machine control method, characterized in that: the control method is: when the drying program is started, the air in the dryer is heated and forms a closed loop when the temperature and/or humidity in the dryer reaches After the preset value, the condenser (4) is blown to condense the water vapor in the air flowing through the condenser (4).
A clothes dryer using the control method according to claim 1, comprising a control unit (1), a first fan (5), and a condenser (4) with a second fan (8), characterized in that: After the drying program is started, the control unit (1) controls to open the first fan (5), and the air in the dryer is heated to form a closed loop when the temperature and/or humidity in the dryer reaches After the preset value, the control unit (1) controls to turn on the second fan (8), and blows the condenser (4) to condense water vapor in the air flowing through the condenser (4). .
A clothes dryer according to claim 2, characterized in that said first fan (5) and said second fan (8) are driven by two different motors (9).
A clothes dryer according to claim 2, wherein said first fan (5) and said second fan (8) are driven by a same motor (9), said motor (9) A clutch device (11) is disposed between the drive shaft that drives the second fan (8) and the second fan (8).
A clothes dryer according to claim 2, wherein said dryer is provided with a first air duct (3) communicating with a drum (2) of the dryer, said drum (2) And forming a sealed circulation duct with the first duct (3), the condenser (4) and the first fan (5) being disposed in the first duct (3).
A clothes dryer according to claim 5, characterized in that the first air duct (3) is provided at a position close to the air outlet of the drum (2) and is connected to the control unit (1). Temperature sensor (6) and / or humidity sensor.
A clothes dryer using the control method according to claim 1, comprising a control unit (1), a first fan (5), and a condenser (4) with a second fan (8), characterized in that: Including an opening and closing device, after the drying program is started, the control unit (1) controls the opening and closing device to close the air inlet or the air outlet of the second fan (8), and the first fan (5) drives The air in the dryer is heated to form a closed loop, and after the temperature and/or humidity in the dryer reaches a preset value, the control unit (1) controls the opening and closing device to open the second fan ( 8) air inlet or outlet, the second fan (8) The condenser (4) is blown to condense water vapor in the air flowing through the condenser (4).
A clothes dryer according to claim 7, characterized in that the dryer is provided with a second air duct (7) with an air outlet facing the condenser (4), the second fan ( 8) disposed in the second air duct (7), the opening and closing device is disposed at an air inlet or an air outlet of the second air duct (7).
A clothes dryer according to claim 8, wherein said opening and closing means is a damper (11).