JP2014181851A - Dehumidifier - Google Patents

Abstract

An object of the present invention is to facilitate the cleaning of a filter used in a suction port of a dehumidifying device and to perform an efficient operation.
A temperature sensor 6 for detecting an indoor temperature, a humidity sensor 7 for detecting humidity, a water amount storage means 20 for storing an amount of water that can be dehumidified per unit time, an indoor temperature, humidity, and an operation display unit 2 The target water amount setting means 21 for setting the target water amount W that can be dehumidified per unit time by comparing the three conditions of the operation mode set in the above and the information in the water amount storage means 20, and the water amount for detecting the amount of dehumidified water The detection means 17, the water amount calculation means 22 for calculating the amount of water dehumidified per unit time, the target water amount W and the unit time water amount F calculated by the water amount calculation means 22 are compared, and the unit time water amount F is determined as the target water amount W. The filter dirt judgment means 24 for detecting the possibility that the filter attached to the suction port of the dehumidifier is clogged with dust or the like, and A configuration in which a filter dirt display means 23 that.
[Selection] Figure 4

Description

  The present invention relates to performing efficient operation by informing that there is a high possibility that the filter used in the suction port of the dehumidifier is clogged.

  Conventionally, this type of dehumidifying device has a fan, a heater, and a moisture absorbent material that are sequentially arranged from the intake port side to the exhaust port side in the internal crossing passage of the casing having the intake port portion and the exhaust port portion. It is known that a filter for removal and a thermistor for detecting the exhaust temperature are arranged at the exhaust port, and when the exhaust temperature exceeds a predetermined temperature, the display means informs that the maintenance time of the filter is reached ( For example, see Patent Document 1).

  In addition, in this type of clothes dryer, a temperature sensor is provided at the inlet and outlet of the heat exchanger in the middle of the circulation path of the drying air to detect the temperature difference between the inlet and outlet air, and the temperature difference is predetermined. There is also a device that notifies clogging of a filter when a value is exceeded (for example, see Patent Document 2).

Japanese Patent No. 3238533 Japanese Examined Patent Publication No. 7-61397

  In such a conventional dehumidifying device, the dehumidifying device may have broken down due to the phenomenon that the amount of water to be dehumidified is less than before, or it takes time to dry clothes. May raise questions. The cause of such a case is likely to be clogging of the filter, and the question can be solved by explaining that the filter is cleaned. However, there are individual differences in the portion where the amount of water to be dehumidified by the dehumidifying device is small, and useless power consumption will continue if it is used without being noticed.

  Therefore, the present invention solves the above-described conventional problems, and a dehumidifying device that allows a user to clean a filter at an early stage to prevent an inefficient operation and continue an energy-saving dehumidifying operation. The purpose is to provide.

  In order to achieve this object, the present invention provides an operating means for setting the operation mode of the dehumidifier, a temperature detecting means for detecting the indoor temperature, a humidity detecting means for detecting the humidity, and the temperature and humidity. A water amount storage means for storing the amount of water that can be dehumidified per unit time with respect to a combination of operation modes that can be set by the operation means, the indoor temperature and humidity detected by the temperature detection means and the humidity detection means, and the operation The target water amount setting means for setting the target water amount that can be dehumidified per unit time by comparing the three conditions of the operation mode set by the means and the information of the water amount storage means, and the water amount detection for detecting the water amount of the dehumidified water Means, a water amount calculating means for calculating the amount of water dehumidified per unit time from the water amount detected by the water amount detecting means, the target water amount and the unit time calculated by the water amount calculating means Filter dirt that detects the possibility of clogging due to dust adhering to the filter attached to the suction port of the dehumidifying device because the unit water amount does not reach the target water amount And a filter dirt display means for notifying the user that there is a high possibility that the filter is clogged in response to the detection of the filter dirt judgment means. The purpose of the period is achieved.

  According to the present invention, the operating means for setting the operation mode of the dehumidifying device, the temperature detecting means for detecting the indoor temperature, the humidity detecting means for detecting the humidity, and the temperature, humidity and the operating means can be set. Water volume storage means for storing the amount of water that can be dehumidified per unit time for a combination of operation modes, the indoor temperature and humidity detected by the temperature detection means and the humidity detection means, and the operation mode set by the operation means A target water amount setting means for setting a target water amount that can be dehumidified per unit time by comparing three conditions and information of the water amount storage means, a water amount detection means for detecting the amount of dehumidified water, and the water amount detection means A water amount calculating means for calculating the amount of water dehumidified per unit time from the detected water amount, and comparing the target water amount with the unit time water amount calculated by the water amount calculating means, Filter contamination determination means for detecting the possibility that dust or the like is attached to the filter attached to the suction port of the dehumidifying device because the amount does not reach the target water amount, and the filter contamination determination means Therefore, the target water amount setting means is based on the indoor temperature, humidity, and operating means, because the filter dirt display means is provided to inform the user that the filter is likely to be clogged. A target water amount to be dehumidified per unit time is set based on a comparison between the three conditions of the set operation mode and the information in the water amount storage means, and the water amount calculating means per unit time when the dehumidifier is actually operated. The dehumidified water amount is calculated, and the filter dirt determination means compares the target water amount with the dehumidified water amount per unit time, and the unit time water amount is the target water amount. It is possible to detect the possibility that the filter is clogged because it does not reach, and the filter dirt display means is highly likely to be clogged by the detection of the filter dirt judgment means. Since it is possible to notify the user that the filter needs to be cleaned from the amount of water dehumidified per unit time calculated by the water amount calculation means, the user can clean the filter early. By doing this, it is possible to obtain an effect of preventing an inefficient operation and continuing an energy-saving dehumidifying operation.

The figure of the dehumidification apparatus of Embodiment 1 of this invention The figure of the water quantity detection means of Embodiment 1 of this invention The figure of the control part of Embodiment 1 of this invention Configuration diagram inside microcomputer of embodiment 1 of the present invention The figure which shows the target water quantity of Embodiment 1 of this invention State transition diagram of filter clogging detection according to the first embodiment of the present invention

  The dehumidifying device according to claim 1 of the present invention comprises an operating means for setting an operation mode of the dehumidifying apparatus, a temperature detecting means for detecting an indoor temperature, a humidity detecting means for detecting humidity, the temperature and humidity, A water amount storage means for storing the amount of water that can be dehumidified per unit time for a combination of operation modes that can be set by the operation means, and the indoor temperature and humidity detected by the temperature detection means and the humidity detection means, and the operation means A target water amount setting means for setting a target water amount that can be dehumidified per unit time by comparing the three conditions of the set operation mode and the information of the water amount storage means; a water amount detection means for detecting the amount of dehumidified water; The water amount calculating means for calculating the amount of water dehumidified per unit time from the water amount detected by the water amount detecting means, and comparing the target water amount with the unit time water amount calculated by the water amount calculating means. And a filter dirt judgment means for detecting a possibility that dust or the like is attached to a filter attached to a suction port of the dehumidifying device because the unit time water amount does not reach the target water amount, and It has a configuration provided with a filter dirt display means for informing the user that the filter is highly likely to be clogged upon detection of the filter dirt judgment means.

  Thereby, the target water amount setting means sets the target water amount to be dehumidified per unit time from the comparison between the indoor temperature and humidity, the three conditions of the operation mode set by the operation means and the information of the water amount storage means. The calculating means calculates the amount of water dehumidified per unit time when the dehumidifying device is actually operated, and the filter contamination determining means compares the target water amount with the amount of water dehumidified per unit time. Since the unit amount of water does not reach the target amount of water, it is possible to detect the possibility that the filter is clogged. Upon receiving the detection of the filter contamination determination means, the filter contamination display means Use the fact that the filter needs to be cleaned from the dehumidified water amount per unit time calculated by the water amount calculation means. Since it is possible to inform the an effect that it is possible to prevent poor operation efficiency by a user to clean the filter early to continue dehumidifying operation energy savings.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
1 to 4 show the entire configuration of a dehumidifying apparatus according to the present invention.

  As shown in FIG. 1, the main body 1 of the dehumidifying device according to the first exemplary embodiment of the present invention includes an operation display unit 2 in which a switch operated by a user, an LED for displaying an operation state, and the like are arranged, and indoor air. A suction port 3 that sucks in, a filter 4 that prevents dust and the like from entering the inside of the main body 1 from the suction port 3, and a blowout port 5 that blows dry air are provided. Further, in the inside of the main body 1, a temperature sensor 6 for detecting the temperature of the indoor air in the vicinity of the suction port 3, a humidity sensor 7 for detecting the humidity of the indoor air, and a blower for sucking the indoor air and blowing out the dried air. The rotary dehumidification rotor 9 that adsorbs moisture in the air sucked from the fan 8 and the suction port 3, and the air that is sucked from the dehumidification rotor 9 by heating the dehumidification rotor 9 by heating the dehumidification rotor 9 and the air sucked from the suction port 3. The heat exchanger 11, the heater 10, the dehumidification rotor 9, the regeneration fan 12 that circulates air in the direction of the heat exchanger 11, the water storage tank 13 that stores the dehumidified water, and the main body And a control unit 14 for controlling the operation of 1.

  Further, inside the main body 1, there are an air passage for sending dry air and an air passage for storing dehumidified moisture in the water storage tank 13, and the former air passage includes the suction port 3, the heat exchanger 11, the dehumidifying rotor 9, The dehumidifying air passage 15 that flows in the order of the blowout port 5 and the latter air passage become a regenerating air passage 16 that circulates repeatedly through the heater 10, the dehumidifying rotor 9, and the heat exchanger 11.

  That is, the dehumidifying air passage 15 takes in indoor air from the suction port 3 via the filter 4 into the main body 1, and heats the high-temperature and high-humidity air flowing through the regeneration air passage 16 when passing through the heat exchanger 11. It is an air passage that sucks the moisture of the indoor air sucked when passing through the rotating dehumidifying rotor 9 and adsorbs it to the dehumidifying rotor 9 and blows it out from the outlet 5 as dry air.

  Further, the regeneration air passage 16 overheats the dehumidification rotor 9 rotated by the heater 10 to release the adsorbed moisture from the dehumidification rotor 9, creates high-temperature and high-humidity air, sends it to the heat exchanger 11, and sucks it from the suction port 3. It is an air path that repeatedly circulates by cooling high-temperature and high-humidity air with indoor air, condensing it, taking out moisture, storing water in the storage tank 13, and returning to the heater 10 as low-temperature and low-humidity air. is there.

  Since the dehumidification rotor 9 rotates across the dehumidification air path 15 and the regeneration air path 16, the dehumidification rotor 9 adsorbs moisture in the dehumidification air path 15 and releases moisture in the regeneration air path 16, and continues. Thus, the indoor air is dehumidified.

  In general, the temperature sensor 6 is a thermistor, the humidity sensor 7 is a polymer resistance sensor, the blower fan 8, the dehumidifying rotor and the regeneration fan 12 are driven by an AC motor, the heater 10 is wound with nichrome wire, and the dehumidifying rotor 9 A dehumidifying material such as silica gel, zeolite or polymer adsorbent is used.

  Further, as shown in FIG. 2, a water amount detecting means 17 for detecting the total amount of water accumulated in the water storage tank 13 and the water storage tank 13 is provided on the bottom surface of the main body 1 where the water storage tank 13 is stored. . The water amount detection means 17 is provided with pressure sensors 17a, 17b, 17c, 17d in the main body 1 so as to come into contact with the four corners of the bottom surface of the water storage tank 13, and the four pressure sensors 17a, 17b, 17c, 17d The weight of the water storage tank 13 including the weight of the water accumulated in the water storage tank 13 is detected from the sum of the signals.

  What is generally called a pressure sensor is a method of converting resistance changes due to the piezoresistance effect generated by deformation of a semiconductor by external force into an electrical signal, or a static deformation generated by deformation of a capacitor by external force. A method of converting a change in electric capacity into an electric signal is used. Although not shown in the figure, it is also possible to calculate the amount of water from the water level detection in the water storage tank and the cross-sectional area of the water storage tank. Are commonly used.

  There are various methods for measuring the amount of water in this way, and there are various methods. However, if the method can detect the amount of water accumulated in the water storage tank as an analog continuous amount, there is a difference in its effect. Does not occur.

  Further, as shown in FIG. 3, the control unit 14 includes a load drive circuit composed of electronic components such as a triac and a relay for driving loads of the blower fan 8, the dehumidifying rotor 9, the heater 10, and the regeneration fan 12. 18 and a microcomputer 19 that has a RAM and a ROM such as a counter, a timer, and a clock function inside and controls the main body 1.

  The microcomputer 19 receives the detection information of the water amount detection means 17 for detecting the amount of water accumulated in the temperature sensor 6, the humidity sensor 7 and the water storage tank 13 and the switch operation information of the operation display unit 2, and the LED of the operation display unit 2 etc. And a signal for driving the load by the load driving circuit 18 can be output. The microcomputer 19 controls the operation of the dehumidifying device in the form of a microcomputer program cooperating with the counter, timer, clock function, RAM and ROM in the microcomputer 19.

  With such a configuration, the stop and start of the operation of the dehumidifier is automatically controlled based on the indoor temperature and humidity conditions. When the weight of the water storage tank 13 exceeds a certain weight, the water storage tank 13 becomes full. Therefore, it is possible to realize a general dehumidifier that can automatically determine that the operation of the dehumidifier is stopped.

  4 to 6 show a method for detecting the possibility of clogging due to dust or the like adhering to the filter attached to the suction port of the dehumidifier of the dehumidifier according to the present invention.

  As shown in FIG. 4, in the microcomputer 19, in order to detect the possibility of clogging of the filter, an operation that can be set by the temperature, humidity, and operation display unit 2 separately from the program for operating the dehumidifier. Three conditions of the water mode storage means 20 for storing the amount of water that can be dehumidified per unit time for the mode, the indoor temperature and humidity detected by the temperature sensor 6 and the humidity sensor 7, and the operation mode set by the operation display unit 2, Water amount calculation means for calculating the amount of water dehumidified per unit time from the amount of water detected by the target water amount setting means 21 and the water amount detection means 17 for setting the target water amount that can be dehumidified per unit time by comparing with the information in the water amount storage means 20 22 and the target water amount are compared with the unit time water amount calculated by the water amount calculating means 22, and the unit time water amount does not reach the target water amount, so it is attached to the suction port of the dehumidifier. The filter dirt judgment means 24 detects that there is a high possibility that the filter is clogged with dust or the like, and instructs the filter dirt display means 23 composed of LEDs or the like to display the program. It is comprised in the form of.

  Further, as shown in FIG. 5, the water amount storage means 20 is constituted by a table-type program in the microcomputer 19 with a target water amount W that can be dehumidified per unit time when the dehumidifying device is operated under the respective temperature and humidity conditions. ing.

  Next, how to obtain the target water amount W that can be dehumidified per unit time will be described.

  For example, when the amount of water that can be dehumidified per unit time at a temperature of 25 ° C. or more and less than 28 ° C. and a humidity of 70% or more and less than 75% in the table of the water amount storage means 20 is determined, If the amount of water that can be dehumidified after continuous operation is measured and the amount of water that can be dehumidified is 10L, if the unit time is 1 hour, about 0.42L, that is, 420ml is 25% of 24L of 10L. It becomes the amount of water that can be dehumidified under the conditions of not lower than 28 ° C. and not lower than 70% and lower than 75%. Since the amount of water 420 ml is the amount of water when the dehumidifying operation is performed without clogging of the filter or the like, when the amount of water is reduced to a certain level, when the amount of water is reduced to 90%, the amount of water 378 ml is 25. It becomes the target water amount under conditions of not less than 28 ° C. and not less than 70% and less than 75% humidity. Since the amount of water that can be dehumidified varies depending on the ambient temperature and humidity, the dehumidifying capacity of a commercially available dehumidifying device is generally dehumidified for 24 hours, that is, for one day under specific temperature and humidity conditions. The amount of water that can be dehumidified when performed is L / day.

  Since it has such characteristics, the amount of water that can be dehumidified is measured by actually operating the dehumidifying device under the respective temperature and humidity conditions of the water amount storage means 20, and the target water amount for each temperature and humidity condition is determined. To do. Since the amount of water that can be dehumidified by the dehumidifier tends to increase as the temperature increases and the humidity increases, the target water amount in FIG. 5 is set to increase in the order of alphabets a, b, c, d, e, f, and g. ing. However, under conditions where the temperature is low and humidity is low, the amount of water that can be dehumidified decreases, and it is considered that the probability of erroneous filter clogging is likely to increase. Therefore, in the conditions of temperature below 10 ° C. and humidity below 60% in FIG. The target water amount 0 is set.

  Moreover, since it is considered that the establishment of erroneous filter clogging is likely to increase even when the upper limit of the temperature at which ordinary household appliances are used, the target water amount is set to 0 for the condition of 40 ° C. or higher in FIG. It is. Although details will be described later, this is because when the target water amount is set to 0, the filter clogging is not determined.

  Next, the processing of the microcomputer 19 will be described as shown in FIG.

  Immediately after starting the operation of the dehumidifier, the filter clogging detection function is activated in STEP1. Next, STEP 2 to STEP 5 are performed by the target water amount setting means 21.

  The temperature and humidity in the room are detected from the temperature sensor 6 and the humidity sensor 7 in STEP2, the target water amount W1 is stored in the water amount storage means 20 in STEP3 by comparing the temperature and humidity detected in STEP2, and the target water amount W1 is stored in STEP4. Check if 0 is not set.

  When the target water amount W1 is 0 in STEP4, the process proceeds to STEP5 and the filter clogging detection function is stopped in order to prevent erroneous detection of filter clogging. If the target water amount W1 is other than 0, the water amount calculation means 22 performs STEP6 and STEP7.

  In STEP 6, the weight of the water storage tank 13 is detected from the water amount detection means 17, and in STEP 7, the weight F1 of the water storage tank 13 at the start of operation of the dehumidifier is stored. Next, after the unit time K elapses in STEP 8, the target water amount setting means 21 performs STEP 9 to STEP 12.

  The temperature and humidity in the room are detected from the temperature sensor 6 and the humidity sensor 7 in STEP 9, the temperature and humidity detected in STEP 2 are collated in the water amount storage means 20 in STEP 10, and the target water amount W2 is stored. In STEP 11, the target water amount W2 is stored. Check if 0 is not set.

  When the target water amount W2 is 0 in STEP11, the process proceeds to STEP12 and the filter clogging detection function is stopped in order to prevent erroneous detection of filter clogging. If the target water amount W2 is other than 0, the process proceeds to STEP13, the average of the target water amount W1 and the target water amount W2 is calculated, the target water amount W is set, and the water amount calculation means 22 performs STEP14 and STEP16.

  In STEP14, the weight of the water storage tank 13 is detected from the water amount detection means 17, and in STEP15, the weight F2 of the water storage tank 13 after the dehumidifier is operated for a unit time K is stored. In STEP16, the difference between the weight F2 and the weight F1 is stored. The weight of water dehumidified during the unit time K is calculated. Here, since the specific gravity of water is 1 and 1 g of water is 1 ml, the difference between the weight F2 and the weight F1 becomes the unit time water amount F that is the amount of water dehumidified per unit time.

  Next, the filter dirt judgment means 24 performs STEP17 to STEP18.

  In STEP 17, the unit time water amount F is compared with the target water amount W. If the unit time water amount F is larger than the target water amount W, it is determined that the dehumidifying capacity of the dehumidifying device has not decreased, and the process proceeds to STEP 18, and the filter End the clogging detection function. When the unit time water amount F is smaller than the target water amount W, it is determined that the capacity of the dehumidifying device has decreased, an instruction is given to the filter dirt display means 23, and the process proceeds to STEP19. In STEP 19, the filter dirt display means 23 is informed that the possibility of clogging of the filter is high, and notifies the user.

  Further, as shown in the configuration of FIG. 1, the dehumidifying ability is reduced due to a failure of the AC motor of the blower fan 8 or the regeneration fan 12 or a defective component, a defective dehumidifying material of the dehumidifying rotor 9, a failure of the heater 10 or a defective component. However, it is a highly reliable part that has been generally used in the past, and in the range of use in ordinary households, the possibility of such a part failure or part failure is considered to be extremely low. . Therefore, the main factor of the decrease in the dehumidifying capacity in the normal dehumidifying operation is a method utilizing the possibility that the decrease in the air volume due to the clogging of the filter is high.

  By such a method, it is possible to obtain a dehumidifying device that allows the user to clean the filter at an early stage to prevent inefficient operation and continue the energy-saving dehumidifying operation.

  The dehumidifying device according to the present invention can notify the user that the filter needs to be cleaned based on the amount of dehumidified water, and thus prevents inefficient operation and continues energy-saving dehumidifying operation. This is useful.

DESCRIPTION OF SYMBOLS 1 Main body 2 Operation display part 3 Suction port 4 Filter 5 Air outlet 6 Temperature sensor 7 Humidity sensor 8 Blower fan 9 Dehumidification rotor 10 Heater 11 Heat exchanger 12 Regenerative fan 13 Water storage tank 14 Control part 15 Dehumidification air path 16 Regenerative air path 17 Water quantity detection means 18 Load drive circuit 19 Microcomputer 20 Water quantity storage means 21 Target water quantity setting means 22 Water quantity calculation means 23 Filter dirt display means 24 Filter dirt judgment means

Claims (1)

Units for combinations of operation means for setting the operation mode of the dehumidifying device, temperature detection means for detecting the indoor temperature, humidity detection means for detecting humidity, and operation modes settable by the temperature, humidity and the operation means Water amount storage means for storing the amount of water that can be dehumidified per time, indoor temperature and humidity detected by the temperature detection means and the humidity detection means, and three conditions of the operation mode set by the operation means and the water amount A target water amount setting unit that sets a target water amount that can be dehumidified per unit time by comparing with information in the storage unit, a water amount detection unit that detects the amount of dehumidified water, and a unit time based on the amount of water detected by the water amount detection unit Water amount calculating means for calculating the amount of water dehumidified per hit, and comparing the target water amount with the unit time water amount calculated by the water amount calculating means, wherein the unit time water amount is the target water amount. In response to the detection of the filter dirt judging means for detecting the possibility that the filter attached to the suction port of the dehumidifying device is clogged with dust or the like. A dehumidifying apparatus comprising a filter dirt display means for notifying a user that a filter is likely to be clogged.

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