JP6182083B2 - Dehumidifier - Google Patents

Description

  The present invention relates to a dehumidifier having a function of drying clothes suspended in a room.

Conventionally, in this kind of thing, when drying clothes hung indoors, it is common to end the clothes drying operation by the user setting the timer of the dehumidifier Met. (For example, see Patent Document 1)
Also, the temperature and humidity are always detected, the speed change of the room temperature and humidity is obtained, and the drying end time of the clothing is adjusted by controlling the air flow rate of the blower fan and the energization time of the heater from the information of the speed change. There was also a dehumidifier. (For example, see Patent Document 2)

JP 2004-251585 A JP 2010-94168 A

By the way, this former former has a problem that the clothes are not dried (freshly dried) or excessively dried (too dry) depending on the size of the room, the amount of clothes, and the temperature and humidity conditions in the room.
The latter also includes means for determining the dryness of the clothes during the clothes drying operation. According to the judgment of this means, if necessary, the dehumidifier's dehumidifying capacity is increased or decreased to adjust the clothes. Although it can be dried properly in a predetermined time, a lot of calculation processing is necessary for analysis of a lot of temperature and humidity data and the control of the blower fan and heater, and the control parts have high capability accordingly. Therefore, there was a problem that caused a significant increase in cost.

This invention pays attention to this point, and in order to solve the above-mentioned drawbacks, in particular, the configuration is such that an evaporator, a condenser, and a blower fan are arranged between a suction port and a blower outlet provided in the housing to form a blower path. A room temperature sensor for detecting the temperature of the suction air by cooling the air sucked from the suction port by the operation of the blower fan and condensing it, heating it with a condenser and discharging the dry air from the outlet And a humidity sensor for detecting the humidity of the intake air, and a dehumidifier provided with a heater in the air flow path near the air outlet can set a clothing drying automatic stop mode, and can be set in advance at a plurality of room temperature ranges (T1 and T2).・ T3 ...) is set, a dehumidification amount coefficient (A1, A2, A3 ...) corresponding to this room temperature range is set, and a timer for measuring the time from the start of operation in the clothes drying automatic stop mode is provided to start the operation. From time to time the room temperature sensor is Conducted read every time, a by humidity in the room by dehumidifying action of the dehumidifier from the start of operation is been reduced time to reach a predetermined humidity X and Y time, in the room temperature range (T1 · T2 · T3 ...) The number of room temperature measurements (K1, K2, K3...), And the reaching performance coefficient K is calculated as K = (K1 × A1 + K2 × A2 + K3 × A3...) ÷ (K1 + K2 + K3. A time Z1 is obtained by Z1 = Y × K, and a control unit having a clothing drying automatic stop mode function for automatically stopping the operation when the time Z1 expires is provided.

According to the present invention, the time from the start of operation in the clothes drying automatic stop mode to the time when the indoor humidity is reduced by the dehumidifying action of the dehumidifier to reach a predetermined humidity set in advance, and the number of room temperature measurements in the room temperature range It is a simplified calculation that calculates the average value of the garment, and it calculates the drying time of the clothing and automatically stops the operation of the dehumidifier, so even if the size of the room, room temperature / humidity, the amount of clothing to dry, etc. It can be automatically stopped at an appropriate time when the clothes are dried, and the calculation for calculating the drying completion time based on the predetermined humidity is only one time, so it can be judged with a small amount of calculation and there is no need to use expensive control parts. It can be kept low.

1 is a side sectional view of an embodiment of the present invention. 1 is a schematic diagram showing the electrical configuration. Explanatory drawing which shows the relationship between the room temperature and dehumidification amount. The graph which shows the change of the same humidity.

Next, a dehumidifier according to the present invention will be described with reference to an embodiment shown in the drawings.
Reference numeral 1 denotes a frame of a dehumidifier. A front case 3 on the front, a rear case 4 on the back, and a top plate 5 covering the upper surface are provided on the bottom plate 2 to constitute an outer shell of the body.
Reference numeral 6 denotes a suction port formed on the back surface of the frame 1, and the rear case 4 is provided with an opening having a number of horizontally long slits.

  Inside the suction port 6 is provided with a filter 7 made of a resin net or nonwoven fabric for removing dust mixed in the intake air. Inside the filter 7, an evaporator 8 composed of a fin tube heat exchanger is provided, and moisture in the air is condensed to dehumidify by cooling the intake air.

A condenser 9 composed of a fin tube type heat exchanger is provided downstream of the evaporator 8, and the air cooled by the evaporator 8 is heated.
A sirocco fan type blower fan 10 and a fan motor 11 for driving the fan 10 are provided downstream of the condenser 9.

  A heater 12 composed of a sheathed heater is provided directly above the leeward side of the blower fan 10, and this heater 12 prevents the efficiency of dehumidification from being lowered when the clothes are dried or during the winter period, Power consumption is about 400-500W.

  A fan casing 14 is provided between the front case 3 and the fan motor 11 so as to surround the blower fan 10 and guide the airflow toward the outlet 13, and a stabilizer is provided at a slightly upper right side from the center of the fan casing 14. (Not shown) is provided to blow air toward the heater 12 and the outlet 13 in the upward direction.

  The top plate 5 forms a substantially flat upper surface portion 15 and the air outlet 13 from approximately the center of the upper surface portion 15 to the upper part of the back surface. A horizontal louver 16 is formed at the substantially central portion of the upper surface portion 15 in the air outlet 13. This horizontal louver 16 is rotatable about a rotating shaft 17 and changes the wind direction from the upper side to the rear side (back side) in the horizontal direction (about 90 degrees) by the rotation. When the machine is stopped, it is automatically stored in the upper surface portion 15 at the rear horizontal blowing position.

  The air blown from the blower fan 10 is blown from the front side toward the horizontal louver 16 at the center of the upper surface, and when the horizontal louver 16 is open, it is positioned above the dehumidifier by blowing dry air directly upward. The laundry suspended in the room is efficiently dried. Further, in a state where the horizontal louver 16 is closed (a state where the horizontal louver 16 is housed in the upper surface portion), it is suitable for a partial dehumidifying operation such as pushing-in by blowing dry air to the back side directly behind.

  Reference numeral 17 denotes a room temperature sensor provided between the suction port 6 and the filter 7 and detects the temperature of the air sucked from the suction port 6. A humidity sensor 18 is provided between the suction port 6 and the filter 7 and detects the humidity of the air sucked from the suction port 6. A handle 19 is accommodated from the center to the rear side by grooves (not shown) formed on the left and right sides of the air outlet 13 of the top plate 5 when it falls, and a handle provided in a substantially central groove of the top plate 5 when standing. It rotates about a shaft (not shown) and is located above the center of the upper surface. It is rotatable and is formed in a U shape. Used for machine transportation.

  An operation unit 20 is provided at the front end of the top plate 5 and includes switches 21 such as operation switches, timer switches, and mode change switches, and a display unit 22 such as operation lamps. There is a switch and a lamp fixed below, and an operation unit base 23 having a circuit configuration is provided. A control unit 24 including an electronic component such as a microcomputer and a timer 24a is provided in the vicinity of the operation unit substrate 23. ing. Reference numeral 25 denotes a clothing drying automatic stop switch in the switches 21, which automatically stops by predicting the end of clothing drying in accordance with the change in room temperature and humidity during clothing drying operation, which will be described later.

  A drain pan 26 for receiving condensed water is provided below the evaporator 8. Reference numeral 27 denotes a drainage channel having one end connected to the bottom surface of the drain pan 26 and the other positioned at the top of the drain tank 28, and guides the condensed water collected by the drain pan 26 to the drain tank 28.

  When the user presses the operation switch and presses the clothes drying automatic stop switch 25, the dehumidifier starts operation, the compressor 29 and the fan motor 11 start, and the horizontal louver 16 provided in the air outlet 13 The heater 12 is energized when the room temperature is low. The evaporator 8 has a low temperature, the condenser 9 has a high temperature, and the indoor air sucked from the suction port 6 is cooled and condensed by the evaporator 8, and the condensed water generated here is collected by a drain tray 26 and drained. Guided to the tank 28. The air that has passed through the evaporator 8 is heated by the condenser 9, passes through the blower fan 10, and the dry air is blown upward from the air outlet 13 where the laundry is suspended, thereby starting the drying of the laundry. is there.

  When the operation is started, the room temperature sensor 17 provided in the suction port 6 is read at intervals of 10 minutes, and the humidity sensor is read at intervals of 1 minute. The drying speed of the laundry varies depending on the size of the room where the dehumidifier is operated, the room temperature, and the humidity. For example, when the laundry drying operation is started in a room with a room temperature of 20 ° C., a humidity of 60% and a size of 8 tatami mats, the humidity rises to about 80% due to moisture generated from the laundry at the start of the operation, and the effect of dehumidification drying The humidity gradually decreases. Of course, the higher the room temperature, the faster the drying speed, and the lower the humidity, the faster the drying speed. The smaller the room size, the faster the drying speed.

  FIG. 4 is a graph showing changes in indoor humidity. When the operation of automatic drying of clothes is started, the humidity in the room rises to 80% due to moisture emitted from the laundry, and then the humidity gradually decreases due to the dehumidifying action of the dehumidifier. descend. And time Y until it falls to predetermined humidity X (for example, 50%) from the start of operation is timed. As shown in FIG. 3, a predetermined room temperature range (T1, T2, T3...), T1 is room temperature less than 15 ° C., T2 is 15 ° C. or more and less than 20 ° C., T3 is 20 ° C. or more and less than 25 ° C., and T4 is 25 ° C. With the above settings, the respective dehumidification amount coefficients are (A1, A2, A3...) 0.5, 0.7, 0.9, 1.0, and the room temperature measured at intervals of 10 minutes during time Y Allocating to the room temperature range (T1, T2, T3...) And counting the number of occurrences (K1, K2, K3...).

  The attainment performance coefficient K is calculated from these values by K = (K1 × A1 + K2 × A2 + K3 × A3...) / (K1 + K2 + K3...), And the laundry is dried from the time Y when the predetermined humidity X (for example, 50%) is reached. Is simply estimated by Z1 = Y × K, and is set as the remaining time Z1 until the laundry is dried. The clothes drying operation is continued, and the laundry is further dried. When the time Z1 expires, the operation of the dehumidifier is automatically stopped. In this way, since the calculation for calculating the drying completion time is performed only once based on the progress of the drying reaching the predetermined humidity X without using a complicated calculation formula, the remaining drying time can be determined with a small amount of calculation. Since it is not necessary to use expensive control parts, the manufacturing cost can be kept low.

  Also, in order to reduce the noise when sleeping at night, the capacity of the dehumidifier is forcibly reduced, such as the night drying mode for forcibly reducing the air volume of the blower and the eco mode for reducing the rotation speed of the compressor 29. In the case of driving, the time Z1 is extended to 1.2 to 2.0 times to prevent the laundry from being dried and not stopped by being dried.

  Thus, the average value of the coefficient is calculated from the time Y from the start of operation until reaching the predetermined humidity X set in advance and the number of room temperature measurements (K1, K2, K3,...) In the room temperature range (T1, T2, T3,...). The simplified calculation to calculate the remaining time Z1 for clothes to dry and automatically stop the operation of the dehumidifier, so the clothes will not change even if the room size, room temperature / humidity, the amount of clothes to be dried, etc. change. It can be automatically stopped at an appropriate time for drying, and the calculation for calculating the drying completion time based on the predetermined humidity X is only one time, so it can be judged with a small amount of calculation, and there is no need to use expensive control parts, thereby reducing the manufacturing cost. It can be suppressed.

DESCRIPTION OF SYMBOLS 1 Frame body 6 Inlet 13 Outlet 17 Room temperature sensor 18 Humidity sensor 24 Control part 25 Clothes drying automatic stop switch

Claims (3)

An evaporator, a condenser, and a blower fan are arranged between the suction port and the blowout port provided in the housing to form a blower path, and the air sucked from the suction port by the operation of the blower fan is cooled by the evaporator. The air flow path near the air outlet is provided with a room temperature sensor for detecting the temperature of the intake air and a humidity sensor for detecting the humidity of the intake air. In the dehumidifier provided with a heater, a clothes drying automatic stop mode can be set, a plurality of room temperature ranges (T1, T2, T3...) Are set in advance, and a dehumidification amount coefficient (A1. A2 · A3 ...) is set, a timer is provided to measure the time from the start of operation in the clothes drying automatic stop mode, and the room temperature sensor reads every certain time from the start of operation, and the dehumidifier starts from the start of operation. By dehumidifying action of Humidity of the inner is been reduced the time to reach a predetermined humidity X and Y time, the to room temperature range (T1 · T2 · T3 ...) times measured at room temperature in (K1 · K2 · K3 ...) , reach the performance factor K Is
K = (K1 × A1 + K2 × A2 + K3 × A3...) ÷ (K1 + K2 + K3...)
A control unit having a clothing drying automatic stop mode function that automatically calculates the time Z1 from reaching the predetermined humidity X to the operation stop by Z1 = Y × K and automatically stopping the operation when the time Z1 expires is provided. A dehumidifier characterized by that.   2. An operation mode in which the rotation speed of the blower fan is changed according to the purpose is provided, and when the rotation speed of the blower fan in this operation mode is low, the time until the operation is stopped is extended. Dehumidifier as described.   2. An operation mode in which the rotation speed of the compressor is changed according to the purpose is provided, and when the rotation speed of the compressor in this operation mode is low, the time until the operation is stopped is extended. Dehumidifier as described.

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