JP2003214683A - Dehumidification machine and dehumidification method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inexpensive dehumidification machine with easy control which corresponds to a variety of dehumidification modes. <P>SOLUTION: The dehumidification machine is provided with a repeatedly moving moisture absorbing member 1, a heater 2 constantly maintaining the moisture absorbing member 1 at a constant temperature for regeneration by heating it at a home position, a fan 3 carrying out dehumidification of a room by passing indoor air 4 through the moisture absorbing member 1 and returning it to the room and carrying out drying and regeneration of the moisture absorbing member 1 by passing the indoor air 4 through the moisture absorbing member 1 via the heater 2, and a plurality of dehumidification modes. Air volume per unit time of the fan 3 is changed by a control means 5 to correspond to the plurality of dehumidification modes. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dehumidifier, and more particularly, to dehumidify indoor air by passing indoor air through a hygroscopic member by means of a fan, while passing room air through a hygroscopic member through a heater to form a dehumidifying member. The present invention relates to a dehumidifier and a dehumidifying method designed for dry regeneration.

[0002]

2. Description of the Related Art A dehumidifier of this type is disclosed in, for example, Japanese Patent Laid-Open No. 2000-
It is known from Japanese Patent No. 126540. In order to adjust the degree of dehumidification at each time, this one controls the wattage of the heater that regenerates the hygroscopic member, dehumidifies the room air by passing it through the room air, and also passes the room air through the heater to the hygroscopic member. The air volume of the fan that aims to dry and regenerate the moisture absorbing member through
The number of rotations and the number of rotations of the dehumidifying member are controlled.

According to this, it is said that the difference in environment, the difference in preference, and the necessary environment can be finely and appropriately performed.

[0004]

However, conventionally, in any of the above-mentioned cases, the dehumidification degree is controlled by controlling the wattage of the heater and at least controlling the air volume and the rotational speed of the fan. Since the strength is adjusted, the number of objects to be controlled becomes multiple, the control modes are diversified, the control is complicated, and even a small dehumidifier is expensive.

An object of the present invention is to provide an inexpensive dehumidifier which can be easily controlled and can be used in various dehumidifying modes.

[0006]

In order to achieve the above-mentioned object, the dehumidifier of the present invention includes a moisture absorbent member that is repeatedly moved, and a heater for reproducing the moisture absorbent member by heating the moisture absorbent member at a fixed position. A heater that constantly maintains a constant temperature, a fan that passes indoor air through the moisture absorbing member and then returns to the room to perform dehumidification, and a chamber that passes the indoor air through the moisture absorbing member to dry and regenerate the moisture absorbing member, and a plurality of fans One feature is that a dehumidification mode and a humidity control unit that changes the air flow rate per unit time of the fan to support a plurality of dehumidification modes are provided.

In such a structure, the moisture absorbing member is repeatedly moved to absorb and remove the moisture in the air that is passed from the room to the room by the fan and returned to the room to dehumidify the room, and the fan drives the heater. By repeating the process of removing the moisture absorbed by the heated air that has been passed through and regenerating it for drying, continuous dehumidification is performed without moisture saturation, but the humidity control means changes the air volume per unit time of the fan. Corresponding to a plurality of dehumidifying modes, the degree of moisture absorption by the moisture absorbing member in proportion to the amount of air volume is guaranteed by obtaining the degree of dryness due to the hot air passing through the heater passing through the moisture absorbing member according to the amount of air volume, Dehumidification that may be necessary from time to time in a plurality of dehumidification modes can be ensured with just one fan air volume adjustment for moisture absorption and dry regeneration of the moisture absorption member. Since it is achieved, it is possible to support a plurality of dehumidification modes with a simple and inexpensive control, and moreover, the hygroscopic material is saturated and the hygroscopic efficiency is lowered, or hot air drying is excessive and the hygroscopic member becomes It is possible to avoid heat deterioration and generation of odor.

The dehumidifier of the present invention also includes a moisture absorbing member that moves repeatedly, a heater that maintains a constant temperature for regeneration by heating the moisture absorbing member at a fixed position, and the room air is passed through the moisture absorbing member. After that, the fan is returned to the room to dehumidify the room, and the indoor air is passed through the hygroscopic member through the hygroscopic member to dry and regenerate the hygroscopic member, a plurality of dehumidifying modes including the automatic dehumidifying mode, and the automatic dehumidifying mode. , Calculate the difference between the preset humidity and the current humidity,
Another feature is that when the difference exceeds a predetermined range, the humidity control means adjusts the air volume to increase the air volume of the fan more than when the difference does not exceed the predetermined range.

In such a structure, the moisture absorbing member is repeatedly moved to absorb and remove the moisture in the air that is passed from the room to the room by the fan and returned to the room to dehumidify the room, and the fan drives the heater. The moisture absorbed by the heated air that is passed through is repeatedly dried and regenerated, and continuous dehumidification is performed without moisture saturation.The humidity control means, in particular, in the automatic dehumidification mode,
By changing the amount of air per unit time of the fan, in response to the target dehumidification at each time in the automatic dehumidification mode in multiple dehumidification modes, the warm air that has passed through the heater can adjust the moisture absorption by the moisture absorption member that is proportional to the amount of air flow. Guarantee the degree of dryness by passing through the moisture absorbing member according to the amount of the air flow, and adjust the air flow of the fan to adjust the dehumidification, which may be necessary depending on the difference between the target humidity and the current humidity. Since the moisture absorption and dry regeneration of the hygroscopic member are surely achieved by just one, it is possible to cope with the automatic dehumidification mode in a plurality of dehumidification modes with a simple and inexpensive control, and the hygroscopic material can be used. It is possible to prevent the moisture absorption efficiency from decreasing due to saturation, the hot air drying becoming excessive, and the moisture absorbing member thermally deteriorated or generating an odor. Further, the target humidity can be obtained early without waste by setting the air volume according to the difference between the target humidity and the current humidity.

In this case, further, in the configuration in which the humidity control means adjusts the air volume at every predetermined time, the detection of the current humidity and the calculation of the difference between the detected current humidity and the set humidity can be performed at every predetermined time. Therefore, it is possible to reduce the frequency of simultaneous control for performing complex control, reduce the calculation function by the reduced amount, and reduce cost and control speed.

In any one of the above inventions, further, the plurality of dehumidifying modes include a dew condensation control mode, and the humidity control means obtains a difference between the present humidity and a preset humidity in the dew condensation control mode. In a configuration in which the fan air volume is larger when the temperature exceeds a predetermined range than when it does not exceed the predetermined range, the difference between the humidity preset to prevent dew condensation and the current humidity exceeds the predetermined range. By increasing the air volume compared to when it does not exceed the interval, the speed of reaching the set humidity is increased to prevent dew condensation due to high humidity as much as possible, but when the difference does not exceed the predetermined range, low humidity makes it difficult to dew. By using the above to reduce the air flow compared to the above case, energy saving operation can be performed while dew condensation is prevented, and running cost can be suppressed.

In addition, separately, a plurality of dehumidifying modes include a dew condensation control mode, and the humidity control means obtains a humidity change over time in the dew condensation control mode, and changes the air volume of the fan according to the degree of the humidity change. Each time the humidity change over time deviates from the set humidity to prevent dew condensation, the amount of air is set according to the degree of dehumidification to dehumidify, thereby performing dehumidification that responds to the current humidity without excess or deficiency. On the other hand, dew condensation can be surely prevented by sufficient but effective dehumidification.

Separately, the plurality of dehumidifying modes include a dew condensation control mode, and the humidity control means obtains a temperature change over time in the dew condensation control mode, and changes the air volume of the fan according to the degree of the temperature change. By dehumidifying by setting the air volume according to the temperature change over time, it is possible to respond to the current temperature without excess or deficiency, and dehumidification considering the difference in the degree of condensation depending on temperature is sufficient. Condensation can be more reliably prevented by wasteless dehumidification.

In addition, separately, the plurality of dehumidifying modes include an energy saving mode, and when the humidity control means is in the energy saving mode, the air volume of the fan is increased for a predetermined time from the start of the energy saving mode, and the air volume of the fan is decreased after the lapse of the predetermined time. With the configuration, even if dehumidification with a low running cost is performed with the air volume suppressed by the energy saving mode, the target humidity or near humidity can be reached early by increasing the air volume during the specified time, and the dehumidification purpose is almost achieved. Can be done.

In each of the above inventions, the indoor air is passed through the hygroscopic member by the fan to be returned to the room to dehumidify the room, while the indoor air is passed through the hygroscopic member through the heater to dry and regenerate the hygroscopic member. Using a heater that constantly maintains a constant temperature, adjust the dehumidification degree to correspond to multiple dehumidification modes by adjusting the air volume of the fan to some extent, and then returning to a predetermined temperature according to the difference in the temperature drop of the heater at that time. A dehumidification method is adopted in which regeneration is performed according to the degree of dehumidification of the moisture absorbing member depending on the difference in output, and this brings about the advantage of realizing a plurality of dehumidification modes only by adjusting the air volume of the fan.

Further objects and features of the present invention will become apparent from the following detailed description and drawings. The respective features of the present invention can be employed alone or in combination in various combinations as much as possible.

[0017]

EXAMPLES The dehumidifier and the dehumidifying method according to the present invention will be described in detail below with some examples to provide an understanding of the present invention. The following description shows specific examples of the present invention and does not limit the content of the claims.

The dehumidifier of this embodiment maintains a constant temperature for regeneration by repeatedly moving the moisture absorbing member 1 as shown in FIGS. 1 and 2 and heating the moisture absorbing member 1 at a fixed position. A heater 2, for example, a PTC heater using a positive temperature coefficient thermistor, and the indoor air 4 is passed through the moisture absorbing member 1 and then returned to the room for dehumidification, and the indoor air 4 is passed through the heater 2 and the moisture absorbing member 1 to absorb moisture. The member 3 is provided with a fan 3 for performing drying and regeneration, a plurality of dehumidifying modes, and a humidity control means 5 as shown in FIG. 4 corresponding to the plurality of dehumidifying modes by changing the air volume of the fan 3 per unit time. .

The moisture absorbing member 1 is made of, for example, zeolite under the trade name, is formed into a disk shape, and is repeatedly moved by rotating as shown by an arrow a in FIG. 2, and is moved at different positions as shown in FIG. It can be repeatedly used for dehumidification through the indoor air 4 indicated by (4) and drying and regeneration through warm air or hot air heated by the heater 2 indicated by the arrow 4b. However, the present invention is not limited to this. In principle, it is possible to use the belt type or cylindrical type orbital movement, and in some cases reciprocal movement is also possible. It may be set appropriately. However, in the drying / regenerating path indicated by the arrow 4b, the condenser 35 is arranged to condense and separate the moisture in the warm air that has passed through the heater 2 and the moisture absorbing member 1, and the moisture is collected and stored in the drain tank 36. Do you drain with a drain pipe? Drainage by the drain pipe may be performed at appropriate times by manually or automatically opening and closing the valve 37. Although the control means 5 uses the internal function of the microcomputer that controls the operation of the dehumidifier, it may be an individual device or another device. Although the purpose can be achieved even if the air volume is adjusted by restricting the air flow by a damper or the like, it is wasteful. Therefore, the rotation speed of the fan 3 is mainly adjusted by controlling the energization of the motor. In some cases, a speed change mechanism can be used.

As described above, in the present embodiment, the moisture absorbent member 1 is repeatedly moved to absorb and remove the moisture in the air 4 which is passed from the room by the fan 3 and returned to the room to dehumidify the room. Then, the moisture absorbed by the heated air passed through the heater 2 by the fan 3 is removed to be dried and regenerated, and continuous dehumidification can be performed without saturation of moisture.

In particular, the heater 2 has an automatic temperature control function for always maintaining the set temperature, and the amount of heat taken by the indoor air 4 and used for drying and regenerating the moisture absorbing member 1 is proportional to the amount of air at that time, and the heater 2 Serves to increase the output in proportion to the air flow so as to recover the amount of heat taken away. As shown in FIG. 3, the dehumidifying capacity of the moisture absorbing member 1 can be increased proportionally to 3L, 6L, and 10L by adjusting the air volume to be weak, medium, or strong. Here, L is, for example, the amount of dehumidified water.

As a result, when the humidity control means 5 responds to a plurality of dehumidifying modes by changing the air volume of the fan 3 per unit time as described above, the moisture absorption by the moisture absorbing member 1 proportional to the air volume is The degree of dryness due to the warm air or hot air that has passed through the heater 2 passing through the moisture absorbing member 1 is ensured by obtaining it according to the amount of the air volume, and even if there is a plurality of dehumidifying modes, the dehumidifying degree may be necessary at any given time. Since moisture absorption and dry regeneration of the moisture absorbent member 1 are surely achieved by one air volume adjustment 1 of 3, the control is simple and inexpensive, and a plurality of dehumidifying modes can be supported. Moreover, it is possible to prevent the moisture absorbing member 1 from being saturated and the moisture absorbing efficiency being lowered, and the hot air drying being excessively causing the moisture absorbing member 1 to be thermally deteriorated or to generate an odor.

Further, when the control means 5 is provided with a plurality of dehumidifying modes including an automatic dehumidifying mode, in the automatic dehumidifying mode, comfort level, energy saving, etc. can be set by initial setting or user setting from the operating section 6. Is detected by the humidity sensor 7 with respect to the humidity W1 set in advance,
Alternatively, a difference from the current humidity W obtained from another device such as a host device is obtained, and when the difference exceeds a predetermined range, the air volume is adjusted to increase the air volume of the fan 3 more than when the difference does not exceed the predetermined range.

As described above, when the control means 5 responds to the target dehumidification in the automatic dehumidification mode by changing the air volume per unit time of the fan in the automatic dehumidification mode,
The moisture absorption degree by the moisture absorbing member 1 proportional to the air volume is guaranteed by obtaining the dryness degree by the warm air or the hot air passing through the heater 2 passing through the moisture absorbing member 1 according to the air volume, and Even if the dehumidification degree is necessary depending on the difference with the current humidity, it is possible to surely achieve moisture absorption and dry regeneration of the moisture absorbent member 1 by just adjusting the air volume of the fan 3, so control is easy. It is possible to support automatic dehumidification mode in multiple dehumidification modes with a low cost, and moreover, the hygroscopic material is saturated and the hygroscopic efficiency is lowered, or hot air drying is excessive and the hygroscopic member is thermally deteriorated. It is possible to avoid the occurrence of odors and odors. Further, the target humidity can be obtained early without waste by setting the air volume according to the difference between the target humidity and the current humidity.

Further, the humidity control means 5 performs such an air volume adjustment every predetermined time so that the humidity sensor 7 detects the current humidity and the calculation of the difference between the detected current humidity and the set humidity. However, the frequency of simultaneous control can be reduced to perform complex control, the calculation function can be reduced by the reduced amount, and the cost can be reduced and the control speed can be increased.

In order to prevent dew condensation in the dew condensation control mode by the humidity control means 5 when the plurality of dehumidifying modes include the dew condensation control mode, the initial setting or the user setting from the operation unit 6 is performed. Humidity W preset
The difference of the present humidity W with respect to 2 is obtained, and when the difference exceeds the predetermined range, the air volume of the fan 3 is made larger than when the difference does not exceed the predetermined range.

In this way, by increasing the air volume while the difference between the humidity W2 preset to prevent dew condensation and the present humidity W exceeds the predetermined range, the amount of air flow is made larger than that when the difference is not exceeded. While increasing the reaching speed to the set humidity W2 to prevent dew condensation due to high humidity as much as possible, when the difference does not exceed a predetermined range, it is low humidity and it is difficult to dew to reduce the air volume compared to the above case. By
Energy-saving operation can be performed while dew condensation is prevented, and running cost can be suppressed.

Further, when the plurality of dehumidifying modes include the dew condensation control mode, the control means 5 obtains a temperature change with time from the current temperature T detected by the temperature sensor 9 in the dew condensation control mode, and changes the temperature. Change the fan air volume according to the degree of.

By doing so, the temperature change ΔT with time
Dehumidification is performed by setting the air flow rate according to the above, to cope with the current temperature without excess or deficiency, and to perform dehumidification in consideration of the difference in the degree of condensation depending on the temperature. With this, dew condensation can be prevented more reliably.

Further, when the control means 5 has a plurality of dehumidifying modes including a dew condensation control mode, the humidity control means obtains a time-dependent change in humidity ΔW of the humidity W in the dew condensation control mode to obtain the humidity. Fan 3 according to the degree of change ΔW
Change the air volume of.

By doing so, the change in humidity ΔW over time
Whenever the humidity deviates from the set humidity W2 that prevents dew condensation, the amount of air is set according to the degree of dehumidification to dehumidify, thereby performing dehumidification that responds to the current humidity W without excess or deficiency. Condensation can be reliably prevented by sufficient but efficient dehumidification.

In addition, the control means 5 separately includes a plurality of dehumidification modes including an energy saving mode, and when the humidity control means is in the energy saving mode, a predetermined time measured by the internal timer 8 of the control means 5 from the start of the energy saving mode. During that time, the air volume of the fan 3 is increased, and after a predetermined time has elapsed, the air volume of the fan 3 is decreased. As a result, even if dehumidification with a low running cost is performed by controlling the air volume in the energy saving mode, the target humidity W1 or near it can be reached early by increasing the air volume for a predetermined time, and the dehumidification purpose is almost achieved. Can be done.

The examples shown in FIGS. 5 and 6 are specific control examples in the case where the "sleep mode", which is one of the automatic dehumidifying modes, is achieved in the energy saving mode without using the humidity sensor 7. As shown in the figure, for energy saving, “strong” is not used in the air volume setting of the fan 3,
Using "weak" and "stop", regardless of the current humidity W,
Therefore, it is not necessary to detect or read this, and dehumidification is performed for a predetermined period of time, for example, 2 hours at the air volume "medium" to help sleep and to prevent discomfort during the initial stage of sleep, and then the initial stage. Timer time preset by setting or user setting from the operation unit 6,
For example, during 4 hours when 6 hours are over, the air volume is switched to "weak" and dehumidification is performed to the extent that no discomfort is felt during a relatively deep sleep, and dehumidification is stopped when 6 hours have passed. ing. However, the time and air volume can be freely set, and dehumidification control that does not currently use humidity can be performed even in energy-saving operation.

The example shown in FIG. 7 is a concrete example of the "automatic mode" as one of the automatic dehumidifying modes in which the automatic dehumidifying is performed by the air volume setting according to the current humidity every predetermined time by the program set as standard. This is a control example. As shown in the figure, first, the current humidity W is taken in. When the current humidity W is, for example, 65% or more, the air volume is set to “strong”, and when it is 62% to less than 65%, the air volume is set to “air”. During"
If it is 60% to less than 61%, the air volume is set to "weak" to perform dehumidification operation, and if it is less than 60%, it is determined to be comfortable and "deactivation" is not performed to prevent dehumidification operation. The setting is repeated for a predetermined time t, for example, every 10 minutes.

As described above, when a plurality of air volumes are set depending on the current humidity W, the higher the humidity is, the earlier the air volume is reduced. It is preferable that the number of steps of the air flow is large, but in dehumidification intended for people who are comfortable or uncomfortable, if the humidity difference that can be felt is set as a step, no waste occurs and it is suitable for energy saving. Further, it is preferable to save energy without waste because it is set to a time interval at which a difference in humidity that can be experienced for a predetermined time of 10 minutes is generated.

In this example, particularly when the air volume is set to "weak" or "stop", it is determined whether or not the dehumidifying operation has just started, and if so, "weak" until a predetermined time, for example, 30 minutes, elapses. After performing the operation in "," the normal control is returned to.

As a result, the user feels uncomfortable and needs to start dehumidification, but immediately becomes "stop" because the humidity is currently low, or "stop" immediately after "weak" is set.
It is possible to eliminate the inconvenience that the humidity is not improved so that the user can feel it.

In the example shown in FIG. 8, automatic dehumidification is performed at predetermined time intervals by standard airflow initialization or by air volume setting according to the difference between the set humidity W1 set by the user through the operation unit 6 and the current humidity W. It is a specific control example of the "automatic dehumidification mode" to be performed. As shown in FIGS. 8 and 9, first, the set humidity W
The difference between 1 and the current humidity W is calculated, and when the difference is, for example, 15% or more, the air volume is set to "strong", and 5% or more and 15% or more.
When it is less than 5%, the air volume is set to "medium", and when it is less than 5%, the air volume is set to "weak" to perform dehumidification operation, and 0%
When it is less than, it is judged to be comfortable, and the dehumidifying operation is not performed as "stop" is repeated every predetermined time t, for example, every 15 minutes.

As described above, when a plurality of air volumes are set according to the difference between the set humidity W1 and the present humidity W, the larger the difference in humidity, the closer the set humidity is to the set humidity, but when the difference is small, a small air volume commensurate with that is set. It is possible to prevent waste, and it is better that the number of steps of the air flow is larger, but in dehumidification intended for people who are comfortable or uncomfortable, if the humidity difference that can be felt is set as a step, waste does not occur and it is suitable for energy saving. is there. Further, it is suitable for energy saving that there is no waste and that the time interval is set to such a degree that a humidity difference that can be felt for a predetermined time of 15 minutes is generated.

Also in this example, when the air volume is set to "weak" or "stop" as in the example shown in FIG. 7, it is determined whether or not the dehumidifying operation has just started, and if so, a predetermined time, for example, It is possible to return to the normal control after the "weak" operation is performed until 30 minutes have passed.

In the example shown in FIG. 10, the temperature change in the room detected by the temperature sensor 9 in the "condensation prevention mode", which is one of the automatic dehumidification modes, and the initial setting and the operation section 6 etc. are preliminarily performed to prevent dew condensation. It is a control example in the case of performing dehumidification for the purpose of preventing dew condensation by setting the air flow rate at every predetermined time based on the difference between the set humidity W2 set by the above and the present humidity W.
As shown in the figure, first, after capturing and storing the temperature and humidity at the time of start, the air volume is set to "weak" and a predetermined time t
A dehumidifying operation is performed for a minute, for example, 1 minute. As a result, it is possible to satisfy that the user feels necessary and has started the dehumidifying operation.

When a predetermined time has elapsed, the temperature and humidity at the start are read out, and the air volume is set according to the difference between the set humidity W2 and the current humidity W and the temperature change. As a result, dew condensation can be prevented more reliably without waste by more accurate humidity control in which humidity is related to temperature. Also, the current temperature and humidity are stored. For example, as shown in FIG. 10 and FIG. 11, the air volume setting is such that the temperature change ΔT is up to
When the temperature difference is 15% or more and the humidity difference is 15% or more, the air volume is set to "strong", and the temperature change ΔT is 3 ° C or more and less than 8 ° C,
And when the humidity difference is 5% or more and less than 15%, the air volume is set to "medium", and the temperature change ΔT is 0 ° C or more and less than 3 ° C,
When the humidity difference is less than 5%, the air volume is set to "weak" to perform the dehumidifying operation, and when the temperature change ΔT is less than 0 ° C and the humidity difference is less than 5%, it is determined to be comfortable. "Stop"
Not to perform the dehumidifying operation is repeated for a predetermined time t, for example, every 15 minutes. At the time of repetition, the temperature and the humidity before the predetermined time t minutes are read out, the current temperature and the humidity are read, the above calculation for the air volume setting for the next dehumidifying operation is performed, and the air volume is set based on this. Perform the next dehumidification operation.

In the example shown in FIG. 12, a target set humidity W that is initially set in the "energy saving mode", which is one of the automatic dehumidifying modes, or set by the user from the operation unit 6, is set.
As shown in FIGS. 12 and 13, the air flow rate is suppressed to “medium” or less at the same time as shown in FIGS. 12 and 13, and dehumidification is performed only when the current humidity W is less than the set humidity W3 each time a predetermined time elapses. It is a specific control example in the case. 12 and 14
As shown in, first, set the air volume to "medium", and for a predetermined time,
For example, dehumidification can be performed for 1 hour, and it can be satisfied that the user feels necessary and starts dehumidification operation.

Next, it is judged whether or not the current humidity W is less than the set humidity W3, and if it is less than this, it is judged as "comfortable" and "stopped".
The dehumidifying operation is not performed, and the dehumidifying state of 1 hour by the air volume "medium" is continued for a predetermined time t, for example, 15 minutes without waste in the energy saving mode in which the air volume is reduced to "weak" only when not less than.

When the continuous dehumidification for a predetermined time is completed, the present humidity W is taken in, the difference between the present humidity W and the set humidity W3 for determining the presence or absence of the next dehumidification is calculated, and the next dehumidification is performed based on this calculation result. Determine whether it is appropriate and repeat the action.

By the way, "comfort" experienced by humidity
The difference between “low humidity” and “high humidity” is related to temperature, and although there are individual differences, there are differences as shown in FIGS. 15 (a) to 15 (c) when showing an average example. Therefore, the control means 5 can display the current dehumidification state on the display unit 10 shown in FIG. 4 or the like from the current humidity W and the temperature T detected by the humidity sensor 7 and the temperature sensor 9. However, since there is an individual difference in the perceived humidity and the degree of comfort due to it, the user can freely set the threshold value for determining "comfort", "low humidity", and "high humidity" using the operation unit 6 or the like.

In the example shown in FIG. 16, the operation unit 6 having the display unit 10 has an operation mode switching key 23 and "strong""medium".
LEDs 4, 5 and 6 for displaying a "weak" operation mode, an operation stop key 24, an off timer key 25 for setting the time of the good night dehumidification mode, and the set time, 8 hours, 4 hours,
LEDs 7, 8 and 9 for displaying 2 hours are provided, and further, there is provided a tank 26 for receiving a drain, a display section 26 which is shared for displaying characters of full water, and an LED 10 for displaying full water. Further, the operation unit 6 has a clothes drying key 31 and an LED 11 indicating a clothes drying operation, and three dehumidifying operation modes of “strong”, “standard”, and “silent” are set as “strong”.
Has a dehumidifying capacity of 6 L and is small. Further, from this relationship, the drying of clothes is also performed by the dehumidifying ability 6L. The clothes can be dried by placing the clothes in the dehumidifying air space from the dehumidifier, and it is more efficient to dry the clothes in an enclosed space such as a closet. When the clothes drying mode is set, the control means 5 dehumidifies the clothes in an operation mode suitable for drying clothes.

In the example shown in FIG. 17, the operation unit 6 is provided with LEDs 12, 13, 11 for displaying the "automatic mode", "energy saving mode" and "clothes drying" corresponding to the automatic operation start key 22 and switching between these modes. So that you can choose
Both "Strong" and "Drying clothes" are compatible with the large type with a dehumidifying capacity of 10L. Others are the same as the example of FIG.

The example shown in FIG. 18 shows a specific control example in the "clothing drying mode". As shown in the figure, the air volume is set to "strong" to start dehumidification with a high forced drying capacity, and when a predetermined time, for example, 5 hours has elapsed, the air volume is set to "medium" for a predetermined time, for example, 1 hour. A dehumidifying operation with no waste of time is performed to perform final drying, stop, and wait.

In the example shown in FIG. 19, after performing the same operation as in FIG. 18, the current humidity W is taken in, and this is preset by the initial setting or the user setting from the operation unit 6 so as to correspond to the end of drying. Determine whether the drying is completed or not depending on whether it has reached the set humidity, and if it has reached or has not fallen, continue dehumidification with the air volume "medium" and stop the operation when it has reached or dropped. ing.
Therefore, the drying can be completed more reliably than in the case of the example shown in FIG.

The invention of the various embodiments described above includes the fan 3
A heater that constantly maintains a constant temperature in order to allow the indoor air 4 to pass through the heater 2 and to be dehumidified while the indoor air 4 is passed through the moisture absorbing member 1 to return to dehumidification and to be dried and regenerated. 2 is used to adjust the air flow rate of the fan 3 to some extent to adjust the dehumidification degree so as to correspond to a plurality of dehumidification modes, and the moisture absorption due to the difference in the return output to the predetermined temperature according to the difference in the temperature decrease in the heater 2 at that time A dehumidifying method for regenerating the member 1 according to the degree of dehumidification is adopted.
As a result, the advantage of realizing a plurality of dehumidifying modes including clothes drying and the like by only adjusting the air volume of the fan 3 is exhibited.

[0052]

According to one feature of the present invention, the moisture absorbing member is repeatedly moved to absorb and remove the moisture in the air that is passed from the indoor by the fan and returned to the indoor to dehumidify the indoor. The humidity is absorbed by the heated air that is passed through the heater by the fan, and the product is dried and regenerated.Continuous dehumidification is performed without moisture saturation. Corresponding to a plurality of dehumidification modes by changing the air volume, the degree of moisture absorption by the moisture absorbing member proportional to the amount of air volume, the degree of dryness by the warm air passing through the heater passing through the moisture absorbing member Guaranteed by getting
Even if it is necessary to use multiple dehumidification modes at any given time, it is possible to control moisture easily and inexpensively by just adjusting the air volume of the fan to achieve moisture absorption and dry regeneration of the moisture absorbent member. Therefore, it is possible to support multiple dehumidification modes, and further, the hygroscopic material may be saturated and the hygroscopic efficiency may be reduced, or hot air drying may be excessive and the hygroscopic member may be deteriorated by heat or generate an odor. You can avoid that.

According to another feature of the present invention, the moisture absorbing member is repeatedly moved to absorb and remove the moisture in the air that is passed from the indoor by the fan and returned to the indoor to dehumidify the indoor. The humidity absorbed by the heated air passed through the heater by the fan is removed and the product is regenerated and dried repeatedly to perform continuous dehumidification without saturation of the humidity. By changing the air flow rate per unit time of the fan, the moisture absorption rate of the moisture absorption member proportional to the air flow rate can be adjusted in accordance with the target dehumidification in the automatic dehumidification mode in multiple dehumidification modes. Is guaranteed by obtaining the degree of dryness by passing through the moisture absorbing member according to the amount of the air volume, and is required at each time depending on the difference between the target humidity and the current humidity. Any amount of dehumidification can be achieved with just one adjustment of the air volume of the fan for moisture absorption and dry regeneration of the hygroscopic member without excess or deficiency, so it is easy to control and inexpensive with automatic dehumidification mode in multiple dehumidification modes. In addition, it is possible to avoid that the hygroscopic material is saturated and the hygroscopic efficiency is reduced, or the hot air drying is excessive and the hygroscopic member is thermally deteriorated or generates an odor. it can. Further, the target humidity can be obtained early without waste by setting the air volume according to the difference between the target humidity and the current humidity.

In this case, further, in the configuration in which the humidity control means adjusts the air volume at every predetermined time, the detection of the current humidity and the calculation of the difference between the detected current humidity and the set humidity can be performed at every predetermined time. Therefore, it is possible to reduce the frequency of simultaneous control for performing complex control, reduce the calculation function by the reduced amount, and reduce cost and control speed.

In any one of the above inventions, further, the plurality of dehumidifying modes include a dew condensation control mode, and the humidity control means obtains a difference between the present humidity and a preset humidity in the dew condensation control mode, In a configuration in which the fan air volume is larger when the temperature exceeds a predetermined range than when it does not exceed the predetermined range, the difference between the humidity preset to prevent dew condensation and the current humidity exceeds the predetermined range. By increasing the air volume compared to when it does not exceed the interval, the speed of reaching the set humidity is increased to prevent dew condensation due to high humidity as much as possible, but when the difference does not exceed the predetermined range, low humidity makes it difficult to dew. By using the above to reduce the air flow compared to the above case, energy saving operation can be performed while dew condensation is prevented, and running cost can be suppressed.

In addition, separately, a plurality of dehumidifying modes include a dew condensation control mode, the humidity control means obtains a humidity change over time in the dew condensation control mode, and changes the air volume of the fan in accordance with the degree of the humidity change. Each time the humidity change over time deviates from the set humidity to prevent dew condensation, the amount of air is set according to the degree of dehumidification to dehumidify, thereby performing dehumidification that responds to the current humidity without excess or deficiency. On the other hand, dew condensation can be surely prevented by sufficient but effective dehumidification.

Separately, the plurality of dehumidifying modes include a dew condensation control mode, and the humidity control means obtains a temperature change over time in the dew condensation control mode, and changes the air volume of the fan according to the degree of the temperature change. By dehumidifying by setting the air volume according to the temperature change over time, it is possible to respond to the current temperature without excess or deficiency, and dehumidification considering the difference in the degree of condensation depending on temperature is sufficient. Condensation can be more reliably prevented by wasteless dehumidification.

Separately, a plurality of dehumidifying modes include an energy saving mode, and when the humidity control means is in the energy saving mode, the air volume of the fan is increased for a predetermined time from the start of the energy saving mode, and the air volume of the fan is decreased after the lapse of the predetermined time. With the configuration, even if dehumidification with a low running cost is performed with the air volume suppressed by the energy saving mode, the target humidity or near humidity can be reached early by increasing the air volume during the specified time, and the dehumidification purpose is almost achieved. Can be done.

According to the dehumidifying method applied to each of the above inventions, the advantage of realizing a plurality of dehumidifying modes by only adjusting the air flow rate of the fan is exhibited.

[Brief description of drawings]

FIG. 1 is a side view schematically showing a configuration of a dehumidifier according to the present invention.

FIG. 2 is a front view showing a dehumidifying section of the dehumidifier shown in FIG.

FIG. 3 is a graph showing an ideal relationship between the air volume and dehumidification capacity of the dehumidifier of FIG.

FIG. 4 is a block diagram showing control means of the dehumidifier of FIG.

5 is a flowchart showing an example of control in a sleep mode by the control means of FIG.

FIG. 6 is a time chart in the control of FIG.

7 is a flowchart showing an example of control in an automatic automatic mode by the control means of FIG.

8 is a flowchart showing an example of control in an automatic mode by the control means of FIG.

9 is a data diagram showing an example of air volume setting in the control example of FIG. 8 arranged in a table format.

10 is a flowchart showing an example of control in a dew condensation mode by the control means of FIG.

FIG. 11 is a data diagram showing an example of air volume setting in the control example of FIG. 10 arranged in a table format.

12 is a flow chart showing an example of control in the energy saving mode by the control means of FIG.

13 is a data diagram showing a target humidity setting example in the control example of FIG. 12 in a table format.

FIG. 14 is a time chart in the control of FIG.

FIG. 15 shows that the degree of pleasantness and unpleasantness to be felt differs depending on the relationship between temperature and humidity in three temperature zones (a) and (b).
It is a data figure which shows an example in (c).

16 is a plan view showing another specific example of the display unit of FIG.

FIG. 17 is a plan view showing another specific example of the display unit of FIG.

18 is a flowchart showing an example of control of one dehumidifying mode for drying clothes by the control means of FIG.

19 is a flowchart showing an example of another dehumidifying mode control for drying clothes by the control means of FIG.

[Explanation of symbols]

1 Hygroscopic member 2 heater 3 fans 4 Indoor air 5 Control means 6 Operation part 7 Humidity sensor 8 timer 9 Temperature sensor 10 Display

   ─────────────────────────────────────────────────── ─── Continued front page    F-term (reference) 3L050 BD05 BE00 BE03 BF04                 3L053 BC04 BC10                 3L060 AA07 CC06 CC08 DD02 EE25                       EE26                 4D052 AA08 BA00 CB00 DA01 DA06                       DB01 FA08 GA01 GA03 GB01                       GB02 GB03 GB07 GB08 HA03                       HB02

Claims (8)

[Claims] 1. A hygroscopic member that moves repeatedly, a heater that maintains a constant temperature for regeneration by heating the hygroscopic member at a fixed position, and indoor air that is returned to the room after passing through the hygroscopic member. Dehumidification of the room air, and a fan that passes indoor air through the hygroscopic member through the heater to dry and regenerate the hygroscopic member, a plurality of dehumidifying modes, and a plurality of dehumidifying modes by changing the air volume per unit time of the fan And a humidity control means for controlling the dehumidifier. 2. A moisture absorbing member that moves repeatedly, a heater that maintains a constant temperature for regeneration by heating the moisture absorbing member at a fixed position, and indoor air is passed through the moisture absorbing member and then returned to the room. The dehumidification of the indoor air is carried out through the heater and the humidity of the indoor air is passed through the hygroscopic member to dry and regenerate the hygroscopic member, a plurality of dehumidifying modes including the automatic dehumidifying mode, and the preset humidity in the automatic dehumidifying mode. A humidity control means for determining a difference from the current humidity and adjusting the air volume to increase the air volume of the fan when the difference exceeds a predetermined range than when the difference does not exceed the predetermined range. Dehumidifier. 3. The dehumidifier according to claim 2, wherein the humidity control means adjusts the air volume at every predetermined time. 4. The plurality of dehumidifying modes include a dew condensation control mode, and the humidity control means obtains a difference between current humidity and preset humidity in the dew condensation control mode, and when the difference exceeds a predetermined range, a predetermined range is set. The dehumidifier according to any one of claims 1 to 3, wherein the air volume of the fan is increased more than when it does not exceed. 5. The plurality of dehumidifying modes include a dew condensation control mode, and the humidity control means obtains a humidity change over time in the dew condensation control mode, and changes the air volume of the fan according to the degree of the humidity change. The dehumidifier according to any one of 1. 6. The plurality of dehumidifying modes include a dew condensation control mode, and the humidity control means obtains a temperature change over time in the dew condensation control mode, and changes the air volume of the fan according to the degree of the temperature change. The dehumidifier according to any one of 1. 7. The plurality of dehumidifying modes include an energy-saving mode, and the humidity control means increases the air volume of the fan for a predetermined time after starting the energy-saving mode and lowers the air volume of the fan after the predetermined time has elapsed in the energy-saving mode. Any one of 1-3
The dehumidifier according to item. 8. A dehumidifying method for passing indoor air through a hygroscopic member and returning it to the room by a fan to dehumidify the room while passing indoor air through a hygroscopic member through a heater to dry and regenerate the hygroscopic member. Using the heater to maintain, adjust the dehumidification degree to correspond to multiple dehumidification modes by adjusting the air volume of the fan to some degree, and absorb the moisture due to the difference in the return output to the predetermined temperature according to the difference in the temperature drop of the heater at that time. A dehumidifying method, characterized in that the material is regenerated according to the degree of dehumidification of the member.