JP5683138B2 - Dehumidifying dryer - Google Patents

Description

  The present invention relates to a dehumidifying dryer for dehumidifying and drying indoor air.

  Conventionally, a dehumidifying dryer using an adsorbent has been proposed. For example, Patent Document 1 includes a dehumidification rotor configured using ceramic paper carrying an adsorbent (hygroscopic material) such as zeolite or silica gel, and sucks air in the bathroom and enters the bathroom via the dehumidification rotor. There is described a dehumidifying dryer (a bathroom heating dryer with a dehumidifying function) having a circulating air path to be returned and a regenerating air path that sucks air in the bathroom and discharges it outside the bathroom via a regenerating heater and a dehumidifying rotor. In this dehumidifying dryer, since the dehumidification rotor is arranged so as to cross each of the circulation air passage and the regeneration air passage, dehumidification in the bathroom by flowing the air in the bathroom to the circulation air passage, It is possible to perform regeneration of the adsorbent at a time by heating the air sucked into the regeneration air passage by the regeneration heater and then sending it to the dehumidification rotor.

  In Patent Document 2, a refrigerant circuit is configured using two heat exchangers carrying an adsorbent, and the circulation direction of the refrigerant in the refrigerant circuit is configured to be reversible, so that the refrigerant circulation direction is reversed. Thus, each of the two heat exchangers alternately functions as an evaporator and a condenser so that the dehumidification in the room is performed on the evaporator side and the moisture is transferred to the outdoor air on the condenser side. A dehumidifying dryer (humidity control device) that switches the distribution channel is described. In the dehumidifying dryer, the refrigerant circuit is disposed in the casing.

Japanese Patent No. 3804866 Japanese Patent No. 3815485

  However, as in the dehumidifying dryer described in Patent Document 1, it is difficult to reduce the number of parts in a dehumidifying dryer having a regeneration heater and a dehumidification rotor for regenerating the adsorbent separately. In addition, when the dehumidification rotor is disposed so as to cross each of the circulation airflow path and the regeneration airflow path, the two airflows are prevented from mixing the air dehumidified by the dehumidification rotor and the air humidified by the regeneration of the adsorbent. Since the seal structure for dividing the path becomes complicated, it is difficult to reduce the size of the apparatus. Furthermore, since the air heated by the regenerative heater is sent to the dehumidification rotor to regenerate the adsorbent, only a part of the heat energy generated by the regenerative heater is used for regenerating the adsorbent, resulting in a lot of energy waste.

  Moreover, in the dehumidification dryer of patent document 2 which comprises a refrigerant circuit using two heat exchangers which carry | supported adsorption agent, and each of these two heat exchangers functions as an evaporator and a condenser alternately, Is complicated, it is difficult to reduce the size of the apparatus. The adsorbent carried on the heat exchanger is regenerated when the heat exchanger functions as a condenser, but the adsorbent is adsorbed on the adsorbent because the temperature at the time of regeneration is about 60 ° C. at the maximum. It is difficult to sufficiently desorb the moisture, and the regeneration efficiency of the adsorbent is low.

  In consideration of the above-mentioned problems, a configuration in which moisture is adsorbed and desorbed by one air blower and a heater capable of heating to a high temperature carrying one adsorbent to perform dehumidification drying in the room is conceivable. In this case, since moisture is alternately adsorbed and desorbed by a single heater, the air sucked from the room is blown into the circulation air path for exhausting the air into the room, the exhaust air path for exhausting the air to the outside, and the air is blown out to both the room and the outdoor. It is necessary to configure three air paths of the dry air path. When the air path is configured in the general configuration, an open / close damper that opens and closes the outlet and an open / close damper that opens and closes the exhaust outlet are required, and at least two air path dampers need to be arranged. For this reason, there is a problem that the product cost increases, and a space for the damper opening / closing portion is required, making it difficult to reduce the size of the apparatus.

  The present invention has been made in view of the above, and an object of the present invention is to obtain a dehumidifying dryer that can efficiently regenerate an adsorbent, can be easily reduced in size, and can further reduce costs.

  In order to solve the above-described problems and achieve the object, the present invention provides an air inlet for sucking indoor air, an air outlet for blowing the sucked air into the room, and exhausting the sucked air to the outside. A dehumidifier comprising: a housing portion provided with an exhaust port for performing the operation; and a blower disposed in the housing portion for sucking air into the housing portion from the air suction port and blowing out the air from at least one of the air outlet and the exhaust port An air passage having a circulation air passage connected from the air suction port to the exhaust outlet and an exhaust air passage branched in the middle of the circulation air passage and connected to the exhaust outlet is formed inside the housing portion. And a blocking portion that is provided at a branch portion between the circulation air passage and the exhaust air passage and is movable to a position that closes the air passage to the air outlet and a position that closes the exhaust air passage in the circulation air passage. And a control unit for controlling the position of the damper and an adsorbent that adsorbs moisture in the air are carried, and the branching part is provided in the vicinity of the blocking part, and the part close to the blocking part is the blocking part. And a heater having substantially the same shape as the movement trajectory.

  According to the present invention, since the adsorbent is supported on the heater, most of the heat energy generated by the heater can be used for regeneration of the adsorbent. Further, the number of parts is reduced as compared with the case where parts for supporting the adsorbent are provided separately from the heater.

  In addition, since the dehumidifying air passage and the exhaust air passage can be formed by moving the position of the damper, the sealing structure of the air passage in the housing portion can be made relatively simple. Further, since the heater is provided in the branch portion, that is, the housing portion, the apparatus can be reduced in size.

  In addition, since the heater has a portion in the vicinity of the closing portion that has substantially the same shape as the movement trajectory of the closing portion, the heat dissipation area of the heating portion and the region for carrying the adsorbent are limited within the limited region in the housing portion. Larger can be secured. Therefore, it is possible to improve the regeneration efficiency of the adsorbent. Moreover, it becomes easy to increase the adsorbent carry | supported by a heater, and the improvement of the dehumidification efficiency of indoor air can also be aimed at.

FIG. 1 is a cross-sectional view schematically showing a dehumidifying dryer according to Embodiment 1 of the present invention, and is a view showing the position of a rotary damper during adsorption operation / heating operation. FIG. 2 is a diagram showing the position of the rotary damper during the ventilation operation / regeneration operation in the cross-sectional view shown in FIG. FIG. 3 is a diagram showing the position of the rotary damper during the cool air operation / dry operation in the cross-sectional view shown in FIG. FIG. 4 is an external perspective view of the rotary damper. FIG. 5 is a cross-sectional view schematically showing a dehumidifying dryer according to Embodiment 2 of the present invention, and is a view showing the position of the rotary damper during the adsorption operation / heating operation. FIG. 6 is a diagram showing the position of the rotary damper during the regeneration operation in the dehumidifying dryer shown in FIG. FIG. 7 is a diagram showing the position of the rotary damper during the cool air operation / drying operation in the dehumidifying dryer shown in FIG. FIG. 8 is a diagram showing the position of the rotary damper during the ventilation operation in the dehumidifying dryer shown in FIG. FIG. 9 is an external perspective view of the rotary damper. FIG. 10 is a cross-sectional view showing a detailed configuration of the protrusion mechanism 15 provided in the rotary damper shown in FIG. FIG. 11 is a cross-sectional view schematically showing a dehumidifying dryer according to Embodiment 3 of the present invention. FIG. 12 is a cross-sectional view schematically showing a dehumidifying dryer according to Embodiment 4 of the present invention.

  Below, the dehumidification dryer which concerns on embodiment of this invention is demonstrated in detail based on drawing. Note that the present invention is not limited to the embodiments.

  Note that the dehumidifying dryer shown in the embodiment of the present invention is operated by a remote controller, and includes five types of “dehumidifying operation”, “ventilation operation”, “drying operation”, “heating operation”, and “cool air operation”. Has a function to drive.

  "Dehumidification operation" is a dehumidification of the room by alternately repeating an adsorption operation in which moisture in the room air is adsorbed by the adsorbent and a regeneration operation in which the moisture adsorbed on the adsorbent is dried to regenerate the adsorbent. Driving.

  “Ventilation operation” is an operation for exhausting indoor air to the outside. “Dry operation” means that air sucked from a room by a blower is heated using a heater and blown into the room as warm air, and part of the room air sucked by the blower is exhausted to the outside. It is the operation which performs drying of.

  The “heating operation” is an operation in which room air sucked by a blower is heated using a heater and is blown into the room to perform heating. The “cool wind operation” is an operation in which indoor air is circulated and blown using a blower, and part of the indoor air sucked by the blower is exhausted to the outside.

Embodiment 1 FIG.
FIG. 1 is a cross-sectional view schematically showing a dehumidifying dryer according to Embodiment 1 of the present invention, and is a view showing the position of a rotary damper during adsorption operation / heating operation. FIG. 2 is a diagram showing the position of the rotary damper during the ventilation operation / regeneration operation in the cross-sectional view shown in FIG. FIG. 3 is a diagram showing the position of the rotary damper during the cool air operation / dry operation in the cross-sectional view shown in FIG. A dehumidifying dryer 1A shown in these drawings is installed at a desired location in a building, for example, a ceiling portion of a bathroom, and performs dehumidification and drying of air in the bathroom (room).

  The dehumidifying dryer 1A includes a housing portion 2, a suction port 3 for sucking indoor air, a blower 4, a motor M for driving the blower 4, a rotary damper 6, an adsorbent (see FIG. A heater 5 carrying an unillustrated), an air outlet 7 into the room, an exhaust port 9, a control unit (not shown), and a remote controller (not shown) are provided. Hereinafter, the components of the dehumidifying dryer 1A will be described individually.

  The housing part 2 (see FIGS. 1 to 3) includes an exhaust duct connection part 8, a box-shaped housing body 10, and a partition case 11 (see FIG. 1). The housing main body 10 has a box shape with the indoor side open, and the exhaust duct connection portion 8 is attached to the side surface of the housing main body 10.

  The exhaust duct connecting portion 8 has an exhaust port 9 (see FIG. 1) that communicates with the inside of the housing body 10 through a ventilation port (not shown) provided on the side surface of the housing body 10, and an exhaust duct (not shown). Connected).

  The exhaust duct is provided to communicate with the outdoors. A motor shaft insertion opening (not shown) for inserting the rotation shaft of the motor M of the blower 4 is formed on the upper surface of the housing body 10. In addition, a holding member insertion port (not shown) for fixing and holding the heater 5 and the rotary damper 6 is provided on the side surface of the housing body 10.

  The partition case 11 is disposed on the open end side (indoor side) of the housing body 10 to divide the interior of the housing body 10. The partition case 11 is formed with an air inlet 12 for sucking indoor air.

  An air passage 13 through which room air passes is formed inside the housing body 10. The partition case 11 also constitutes a part of the wall surface of the air passage 13. The air passage 13 has a circulation air passage 13a that leads from the air suction port 3 to the air outlet 7 and an exhaust air passage 13b that branches off in the middle of the circulation air passage 10a (branch portion 19) and leads to the exhaust port 9. Configured.

  The blower 4 (see FIG. 1) is a single-suction sirocco fan blower, and is arranged in the housing body 10 such that the air suction port of the blower 4 is connected to the air suction port 12 of the partition case 11. ing. The air blower 4 is arrange | positioned upstream from the branch part 19 of the circulation air path 13a. The blower outlet (see FIG. 1) of the blower 4 is on the heater 5 side, and the motor M (see FIG. 2) is arranged at the upper part of the housing body 10.

FIG. 4 is an external perspective view of the rotary damper 6. The rotary damper 6 has a curved surface portion (blocking portion) 6a and a wall surface portion 6b. The curved surface portion 6a has substantially the same shape as a shape obtained by cutting the cylinder along two planes parallel to the central axis. In the first embodiment, an example is shown in which the angle formed by two planes that cut the cylinder is about 120 degrees.

  The wall surface portion 6b has a fan shape that closes both ends of the curved surface portion 6b. The rotary damper 6 is rotatable around the central axis of the original cylinder of the curved surface portion 6a. The rotary damper 6 is rotated by driving means such as a stepping motor.

  The rotary damper 6 is rotatable clockwise to the position shown in FIGS. Moreover, it can rotate to the position which contacts the stopper 14 counterclockwise shown in FIGS. When the rotary damper 6 rotates, the curved surface portion 6a can be moved to a position where the air passage to the air outlet 7 in the circulation air passage 13a is closed and a position where the exhaust air passage 13b is closed.

  The rotational position of the rotary damper 6 is controlled by rotating the rotary damper 6 counterclockwise once and rotating it to the position (reference position) in FIG. This is done by rotating the rotary damper clockwise to the rotation angle necessary to form the air path.

  The heater 5 (see FIG. 1) is configured, for example, by arranging a plurality of heating elements at intervals or by providing a plurality of radiating fins around the heating elements. An air flow path is formed around the heating element and the heat dissipating fins. By letting air pass through the flow path, the heat from the heating element is dissipated. As the heating element, an electric heater or the like in which a heating element in which an electric insulator and a heat conductor are arranged around is placed in a metal pipe is used.

  Adsorbents such as silica gel and zeolite are supported on the surfaces of the heating elements and the radiation fins that constitute the heater 5. The heater 5 is disposed on the outlet side of the blower 4. From the viewpoint of suppressing overheating of the heater 5, it is preferable to use a PTC (Positive Temperature Coefficient) heater as the heater 5.

  The PTC heater uses a PTC element whose resistance increases abruptly at a certain temperature (Curie temperature) as a heating element, so it has a self-temperature control function, is excellent in safety, and is overheated. In order to prevent this, it is also suitable for cost reduction by omitting the temperature control device.

  The heater 5 is a branching portion 19 of the air passage 13 and is disposed closer to the central axis than the curved surface portion 6 a of the rotary damper 6. The heater 5 is provided so as to be close to the curved surface portion 6 a of the rotary damper 6. The proximity portion of the heater 5 to the curved surface portion 6a has substantially the same shape as the movement locus of the curved surface portion 6a. In this Embodiment 1, the shape as the whole of the heater 5 is made into the column shape by forming the radiation fin of the heater 5 in circular shape. In addition, the proximity | contact part to the curved surface part 6a of the heater 5 should just be a shape substantially the same as the movement locus | trajectory of the curved surface part 6a, and the whole shape of the heater 5 is not restricted to a cylindrical shape.

  As described above, by setting the proximity portion of the heater 5 to the curved surface portion 6a to have substantially the same shape as the movement locus of the curved surface portion 6a, it is possible to reduce a useless space necessary for the rotation of the rotary damper 6. Further, if the heat radiating fins have a circular shape, and if a heat generating portion is provided at the center of the heat radiating fins, temperature unevenness during heating can be suppressed, and the adsorbent can be easily regenerated efficiently.

  Further, by making the proximity portion of the heater 5 to the curved surface portion 6a substantially the same shape as the movement locus of the curved surface portion 6a, the heat radiation area and the adsorbent are supported in a limited region within the housing body 10. A larger area can be secured. Therefore, it is possible to improve the regeneration efficiency of the adsorbent. Moreover, it becomes easy to increase the adsorbent carry | supported by the heater 5, and the improvement of the dehumidification efficiency of indoor air can also be aimed at.

  The air outlet 7 has wing plates arranged in parallel, and the wind direction can be adjusted by providing a rotating shaft on the wing plate and adjusting the opening degree by electric driving means. In addition, you may comprise without providing an electric drive means for cost reduction. In this case, the wind direction can be adjusted by manually rotating the slats.

  The control unit (not shown) has a storage element (not shown) in which a predetermined control program is stored, and the blower 4, the heater 5, and the rotary damper according to a command input from a remote controller (not shown). 6 is controlled separately, and the dehumidifying dryer 1A is caused to perform a dehumidifying operation, a regeneration operation, and the like.

  Next, the dehumidifying operation, the regeneration operation, the drying operation, the heating operation, and the cool air operation in the dehumidifying dryer 1A will be described.

  In the dehumidifying operation, as shown in FIG. 1, the rotary damper 6 rotates counterclockwise until the end of the curved surface portion 6 a comes into contact with the stopper (positioning means) 14. When the rotary damper 6 is driven and positioned at a position as shown in FIG. 1, the flow path to the exhaust port 9 is blocked by the curved surface portion 6a. As a result, a flow path (circulation air path 13 a) connected from the air inlet 3 to the air outlet 7 is formed inside the housing portion 2. At this time, the operation of the blower 4 is started. In the dehumidifying operation, the heater 5 is not energized.

  As a result, in the dehumidifying operation, the room air in the room where the dehumidifying dryer 1A is installed flows into the housing part 2 via the air inlet 3 and the air inlet 12 of the blower 4 (see FIG. 1). The air is blown out from the air outlet 7 (see FIG. 1) through the flow path in the heater 5 into the room. Since the flow path toward the exhaust port 9 (see FIG. 1) is blocked by the rotary damper 6, room air does not flow into the exhaust port 9. In the process of passing through the heater 5, moisture in the air is adsorbed by the adsorbent carried on the heater 5, and the room air is dehumidified.

  In the adsorbent regeneration operation, as shown in FIG. 2, the rotary damper 6 rotates clockwise until the other end of the curved surface portion 6a contacts the partition case. As a result, the air outlet 7 is blocked by the rotary damper 6, and a flow path (exhaust air path 13 b) connected to the exhaust port 9 is formed inside the housing portion 2.

  At this time, in order to efficiently regenerate the adsorbent, it is necessary to blow high-humidity air containing moisture desorbed from the adsorbent to the heater 5 in order to exhaust it from the periphery of the heater 5. On the other hand, in order to efficiently desorb moisture from the adsorbent, it is necessary to raise the temperature of the heater 5 to some extent, and thus it is necessary to suppress the blowing rate. Therefore, the blower 4 operates at a lower rotational speed than during the dehumidifying operation. Moreover, in order to raise the temperature of the heater 5, electricity supply to the heater 5 is performed.

  As a result, the air in the room where the dehumidifying dryer 1A is installed flows into the blower 4 through the air suction port 3 and the air suction port 12 (see FIG. 1) of the blower 4, and blows out into the housing part 2. After that, it is discharged to the exhaust port 9 through the heater 5. In addition, since the adsorbent (not shown) carried by the heater 5 is heated by the heater 5, moisture is desorbed from the adsorbent and the adsorbent is regenerated. The humid air containing moisture desorbed from the adsorbent is exhausted to the outside through the exhaust port 9 together with the air blown from the blower 4.

  The temperature of the heater 5 during the regeneration operation can be set as appropriate according to the type of adsorbent carried on the heater 5. For example, when silica gel is used as the adsorbent, moisture can be sufficiently desorbed from the silica gel even when the heating operation is performed at a relatively low temperature (for example, about 60 ° C. to 100 ° C.). Can do.

  On the other hand, when zeolite is used as the adsorbent, the zeolite is an adsorbent suitable for drying indoors or objects to be dried, but in order to desorb the moisture once adsorbed, when regenerating silica gel Therefore, it is preferable to set the temperature of the heater 5 during the regeneration operation to a relatively high temperature.

  In addition, the timing of the regeneration operation can be selected as appropriate. For example, the regeneration operation may be performed after the adsorption capacity of the adsorbent is greatly reduced by performing the dehumidification operation for a long time, or the adsorption capacity of the adsorbent is not significantly decreased by performing the dehumidification operation for a relatively short time. Regeneration operation may be performed later.

  If a large heater cannot be used because the installation space is small, a small heater may be used. When a small heater is used as the heater 5, the amount of adsorbent that can be carried on the heater 5 is reduced, so that the speed of moisture adsorption and dehumidification is reduced. Even in this case, it is possible to secure a desired amount of dehumidification by repeating dehumidification and regeneration in a short cycle, although it takes time. Moreover, it becomes easy to attain size reduction of 1 A of dehumidification dryers by using a small heater.

  Further, during the dehumidifying operation performed following the regeneration operation, heat generated in the heater 5 during the regeneration operation is input into the room by blowing air, and the temperature of the room rises. Therefore, the regeneration operation is repeated with a relatively short cycle. If it carries out, drying will be efficiently performed when using the said dehumidification drying machine 1A as a bathroom dryer, a dryer of a to-be-dried object, etc.

  If necessary, a cooling operation for cooling the heater 5 may be performed following the regeneration operation. For example, the cooling operation can be performed in the same manner as the regeneration operation except that the heater 5 is not energized. Further, the cooling efficiency of the heater 5 may be increased by increasing the amount of air blown from the blower compared to the regeneration operation.

  In the dehumidifying dryer 1 that performs the dehumidifying operation and the adsorbent regeneration operation as described above, since the adsorbent is carried on the heater 5, most of the heat energy generated in the heater 5 is regenerated. Can be used. Further, the number of parts is reduced as compared with the case where the parts for supporting the adsorbent are parts different from the heater 5. In addition, since the air passage for dehumidification and the air passage for exhaust can be formed by one rotary damper, the number of parts is reduced compared to the case where the damper having the rotary structure is not used.

  Further, by making the radiating fin of the heater 5 into a circular shape, the outer shape of the radiating fin can be made substantially the same as the movement locus of the curved surface portion 6 a of the rotary damper 6. Thereby, while making the heater 5 accommodate in the inside of the housing part 2, it can be set as a bigger radiation fin in the range which does not prevent the movement of the rotation damper 6. FIG.

  By increasing the size of the heat dissipating fins, the amount of adsorbent supported can be easily increased. By increasing the adsorbent, it is possible to improve the moisture absorption efficiency. In addition, by housing the heater 5 in the housing part 2, the dehumidifying dryer 1A can be easily downsized and the cost can be reduced.

  In addition, since the radiating fin has a circular shape, by heating from the center, the temperature distribution of the radiating fin is likely to be uniform compared to a rectangular radiating fin, and the adsorbent regeneration efficiency can be improved. Thereby, the amount of heat input to the heater 5 can be reduced, and the running cost can be reduced. Therefore, in the dehumidifying dryer 1A, the adsorbent can be efficiently regenerated, and the size of the apparatus can be reduced and the cost can be easily reduced.

  Further, the high efficiency of adsorbent regeneration leads to a reduction in energy consumption, and the reduction in the number of parts is the workability when disassembling the dehumidifying dryer 1A for disposal, and when separating materials after disassembly. Lead to improved workability. Further, the miniaturization of the dehumidifying dryer 1A leads to a reduction in packaging at the time of packaging, efficiency of transportation at the time of distribution, improvement of collection and transportability at the time of disposal, and reduction of an environmental load at the time of disposal.

  Next, the drying operation will be described. In the drying operation, as shown in FIG. 3, the end of the curved surface portion 6 a of the rotary damper 6 rotates to a substantially intermediate position where neither the stopper 14 nor the partition case 11 is in contact, and the flow path leading to the indoor air outlet 7. And two flow paths connected to the exhaust port 9 are formed inside the housing portion 2.

  Therefore, a part of the indoor air flowing into the housing part 2 from the blower 4 is blown out into the room through the heater 5, and a part of the room air is discharged from the exhaust port 9 to the outside. At this time, the blower 4 is driven and the heater 5 is energized. For example, if the dehumidifying dryer 1A is installed in a bathroom and a drying operation is performed, the dehumidifying dryer 1A is used as a conventional hot air dryer that performs ventilation while blowing hot air to dry the bathroom and clothes. can do.

  In addition, the dehumidifying dryer 1A can perform heating operation, ventilation operation, cool air operation, etc. of the room where the dehumidifying dryer 1A is installed. The heating operation of the room in which the dehumidifying dryer 1A is installed is performed in the same manner as the dehumidifying operation described above except that the heater 5 is energized. The ventilation operation of the room in which the dehumidifying dryer 1A is installed is performed in the same manner as the above-described regeneration operation except that the heater 5 is not energized. The cool air operation in the room where the dehumidifying dryer 1A is installed is performed in the same manner as the above-described drying operation except that the heater 5 is not energized.

Embodiment 2. FIG.
FIG. 5 is a cross-sectional view schematically showing a dehumidifying dryer according to Embodiment 2 of the present invention, and is a view showing the position of the rotary damper during the adsorption operation / heating operation. FIG. 6 is a diagram showing the position of the rotary damper during the regeneration operation in the dehumidifying dryer shown in FIG. FIG. 7 is a diagram showing the position of the rotary damper during the cool air operation / drying operation in the dehumidifying dryer shown in FIG. FIG. 8 is a diagram showing the position of the rotary damper during the ventilation operation in the dehumidifying dryer shown in FIG. In addition, about the structure similar to the said Embodiment 1, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted.

  In the second embodiment, the protrusion mechanism 15 is provided at the end of the wall surface portion 6 b of the rotary damper 6, and the auxiliary damper 14 </ b> A is provided above the heater 5. FIG. 9 is an external perspective view of the rotary damper 6. FIG. 10 is a cross-sectional view showing a detailed configuration of the protrusion mechanism 15 provided in the rotary damper 6 shown in FIG.

  As shown in FIG. 9, the protrusion mechanism 15 is disposed at the end portion of the wall surface portion 6 b provided at both ends of the rotary damper 6. The protrusion mechanism 15 includes a protrusion 3K, a spring 4K, and an outer cylinder 5K. The protrusion 3K is accommodated in the outer cylinder 5K as shown in FIG. The protrusion 3K is urged in a direction of protruding from the outer cylinder 5K by the spring 4K.

  The protrusion 3K does not completely jump out of the outer cylinder 5K because the stopper 6K formed on itself is caught by the outer cylinder 5K. When the projection 3K does not receive a force from the outside, the projection 3K protrudes from the outer cylinder 5K by the force of the spring 4K. When the projection 3K receives a force that pushes the spring 4K in a direction opposite to the urging direction, the spring 4K contracts and the projection 3K is housed inside the outer cylinder 5K.

  Thus, the protrusion mechanism 15 is configured such that the protrusion 3K can be expanded and contracted. The protrusion mechanism 15 is attached to the rotary damper 6 so that the protrusion 3K protrudes outside the curved surface portion 6a when the protrusion 3K extends.

  As shown in FIG. 5, the auxiliary damper 14A has a curved plate shape. It is fixed to the housing body 10 (wall surface of the air passage 13) by a fulcrum 20 that can rotate, and the auxiliary damper 14A can be rotated about the fulcrum 20 as an axis. Further, the auxiliary damper 14A is urged downward (in the direction of the heater 5) in the figure by the force of a spring (biasing means, not shown) disposed at the fulcrum 20. Note that the urging force of the spring 4K included in the protrusion mechanism 15 is set to be larger than the urging force of the spring disposed at the fulcrum 20.

  During the dehumidifying operation and the heating operation as shown in FIG. 5, the auxiliary damper 14 </ b> A is in close contact with the rotating damper 6 by the biasing force of the spring disposed at the fulcrum 20, and the clearance between the curved surface portion 6 a and the wall surface of the air passage 13. To prevent the circulation air from leaking to the exhaust port 9 side.

  Further, as shown in FIGS. 7 and 8, when the projection mechanism 15 of the rotary damper 6 comes in contact from the lower surface side, the projection mechanism 15 pushes it upward, and the outer surface of the curved surface portion 6a and the auxiliary damper 14A The exhaust air passage 13b is formed between the two.

  Next, the dehumidifying operation, the regeneration operation, the drying operation, the heating operation, and the cool air operation in the dehumidifying dryer 1B will be described. In the dehumidifying dryer 1B, the adsorption operation and the heating operation are performed according to the control content described in the first embodiment except for the control content of the control unit during the ventilation operation and the drying operation.

  In the dehumidifying operation, the rotary damper 6 rotates to a position as shown in FIG. At this time, the protrusion mechanism 15 is in an extended state as shown in FIG. Since other explanations are the same as those in the dehumidifying operation of the first embodiment, the explanation is omitted.

  In the regeneration operation, the rotary damper 6 rotates to a position as shown in FIG. At this time, the protrusion 3K is pressed by the protrusion guide 16 provided on the inner side surface of the housing body 10, and is in a contracted state. Since other explanations are exactly the same as those in the regeneration operation of the first embodiment, the explanation is omitted.

  In the drying operation, the rotary damper 6 rotates to a position as shown in FIG. At this time, the protrusion 3K is in an extended state, and pushes up the auxiliary damper 14A. As the auxiliary damper 14A moves upward, the exhaust air passage 13b is formed between the outer surface of the curved surface portion 6a and the auxiliary damper 14A.

  Since the exhaust air passage 13b is constituted by the outer side surface of the curved surface portion 6a and the auxiliary damper 14A, the exhaust air passage 13b is an air passage not through the heater 5. As a result, the indoor air sucked in by the blower 4 flows into the housing part 2 and is blown out into the room through the heater 5, and a part of the air goes from the exhaust port 9 to the outside without going through the heater 5. Discharged.

  In the drying operation of the first embodiment, since the indoor air discharged outside the room also passes through the heater 5, the heat generated in the heater 5 is discarded outside the room, resulting in wasted energy. On the other hand, in the drying operation in the dehumidifying dryer 1B according to the second embodiment, air can be discharged outside the heater 5 without passing through the heater 5, so that the heat generated in the heater 5 is discarded to the outdoors. Can be suppressed. Therefore, energy loss can be suppressed, and energy saving can be achieved as compared with the configuration of the dehumidifying dryer 1A according to Embodiment 1.

  In the ventilation operation, the rotary damper 6 rotates at a position as shown in FIG. The rotary damper 6 blocks the air path to the heater 5, and the auxiliary damper 14A is pushed up by the protrusion 3K, and the exhaust air path 13b is formed between the outer surface of the curved surface portion 6a and the auxiliary damper 14A. It becomes.

  Since the exhaust air passage 13b is constituted by the outer side surface of the curved surface portion 6a and the auxiliary damper 14A, the exhaust air passage 13b is an air passage not through the heater 5. Therefore, unlike Embodiment 1, ventilation can be performed without using the heater 5, energy loss is reduced, and the heater 5 is less likely to be clogged with dust.

  In addition, the rotational position of the rotary damper 6 in the present embodiment 2 is determined by rotating the rotary damper 360 degrees counterclockwise once so that the rotational position of the rotary damper 6 is as shown in FIG. Then, the control is performed by rotating the rotary damper 6 clockwise to the rotation position in each operation.

  In the second embodiment, the rotary damper 6 rotates 360 degrees or more clockwise, but when rotated counterclockwise, the protrusion 3K hits the auxiliary damper 14A as shown in FIG. Is done. Thus, in the second embodiment, the auxiliary damper 14A also functions as a positioning unit.

Embodiment 3 FIG.
FIG. 11 is a cross-sectional view schematically showing a dehumidifying dryer according to Embodiment 3 of the present invention. In addition, about the structure similar to the said embodiment, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted. In the dehumidifying dryer 1C according to the third embodiment, the temperature of the heater 5 is detected by the temperature sensor 17, and the amount of electric power supplied to the heater 5 is controlled according to the detected temperature.

  The dehumidifying dryer 1 </ b> C is the dehumidifying dryer 1 </ b> A described in Embodiment 1 (see FIG. 5) except for the presence / absence of the temperature sensor 17 and the control contents of the control unit during the regenerative operation (control related to the amount of power input to the heater 5) 1 to 4) and the dehumidifying dryer 1B described in Embodiment 2 (see FIGS. 5 to 10).

  The dehumidifying dryer 1 </ b> C has a temperature sensor 17 that detects the temperature of the heater 5. During the regeneration operation, the control unit monitors the temperature detected by the temperature sensor 17, and supplies the heater 5 according to the detected temperature. Controls the amount of input power. More specifically, when the temperature detected by the temperature sensor 17 reaches a preset temperature (hereinafter referred to as “first condition value”), the amount of electric power supplied to the heater 5 is reduced or the heater 5 is supplied. Stop energizing.

  The first condition value is a temperature at which moisture can be sufficiently desorbed from the adsorbent (not shown). The first condition value is set in advance according to the type and amount of the adsorbent (not shown) carried on the heater 5, and is stored in advance in a storage element (not shown) of the control unit, for example. The control unit reduces the amount of electric power supplied to the heater 5 when the temperature detected by the temperature sensor 17 is equal to or higher than the first condition value, and sets the temperature of the heater 5 to a first value over a predetermined time. The temperature is maintained at the condition value or in the vicinity thereof, the amount of electric power supplied to the heater 5 is gradually decreased to gradually decrease the temperature of the heater 5, or the energization to the heater 5 is stopped and the heater is stopped. Let 5 cool naturally.

  In the dehumidifying dryer 1C configured as described above, it is possible to suppress heating of the adsorbent more than necessary during the regeneration operation, and thus wasteful energy consumption can be suppressed. Although various types of heaters can be used as the heater 5, by using the PTC heater described in the first embodiment, overheating of the heater 5 can be prevented and wasteful energy consumption can be easily suppressed.

Embodiment 4 FIG.
FIG. 12 is a cross-sectional view schematically showing a dehumidifying dryer according to Embodiment 4 of the present invention. In addition, about the structure similar to the said embodiment, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted. In the dehumidifying dryer 1D according to the fourth embodiment, the state of air in the room (own room) in which the dehumidifying dryer 1D is installed, specifically, the humidity and temperature are detected, and during the dehumidifying operation and the regeneration operation. The control part (not shown) selects the control content of at least one of the above. When the dehumidifying dryer 1D is configured as described above, the sensing unit 18 for detecting the state of air in the room is disposed in the vicinity of the air inlet 3, for example.

  The configuration of the dehumidifying dryer 1D includes the sensing unit 18 and the point that the control unit selects the control content according to the detection result of the sensing unit 18 when performing at least one of the dehumidifying operation and the regeneration operation. For example, it can be set as the same structure as 1 A of dehumidification dryers demonstrated in Embodiment 1. FIG.

  For example, the example which provided the humidity sensor as the sensing part 18 is shown. When the humidity of the room in which the dehumidifying dryer 1D is installed is high, the amount of moisture adsorbed per unit time by the adsorbent (not shown) carried on the heater 5 increases, so that the time is short. So much moisture is adsorbed on the adsorbent. If the amount of moisture adsorbed by the adsorbent is large, the thermal energy required to desorb moisture from the adsorbent in the regeneration operation also increases.

  On the other hand, when the humidity of the room where the dehumidifying dryer 1D is installed is low, the amount of moisture adsorbed per unit time by the adsorbent decreases. If the amount of moisture adsorbed by the adsorbent is small, the thermal energy required to desorb moisture from the adsorbent in the regeneration operation is also reduced.

  Therefore, when the sensing unit 18 is configured by a humidity sensor, the control unit detects that the humidity (relative humidity) equal to or higher than a predetermined value (hereinafter referred to as “second condition value”) is the sensing unit 18 (humidity sensor) during the dehumidifying operation. ), The duration of one regeneration operation relative to the duration of one dehumidifying operation is relatively longer than when the detection result of the sensing unit 18 is less than the second condition value, Alternatively, the amount of power input to the heater 5 during the regeneration operation is increased.

  The second condition value is determined in advance and stored, for example, in a storage element (not shown) in the control unit. There may be only one second condition value, or two or more different values. Further, for each of the detection result of the sensing unit 18 equal to or greater than the second condition value and less than the second condition value, the duration of one dehumidifying operation and the duration of one regeneration operation A value such as the amount of power input to the heater 5 during the regeneration operation may be determined in advance for each condition value, and data for managing these values by a method such as table management may be stored in advance in the storage element.

  The control unit selects the control contents during the dehumidifying operation and the regeneration operation using the second condition value and data stored in the storage element and the detection result of the sensing unit 18. For example, when the detection result of the sensing unit 18 is equal to or greater than the second condition value, the operating condition in which the duration of the dehumidifying operation is short and the amount of heat input to the heater 5 during the regeneration operation is large is selected, and the sensing unit 18 When the detection result is less than or equal to the second condition value, the operation duration time during the dehumidifying operation is long, and the operating condition with a small amount of heat input to the heater 5 is selected to operate the dehumidifying dryer 1D.

  At this time, the control content selected by the control unit includes an operation time at the time of dehumidification and regeneration, a rotation speed of the blower 4, an operation of the heater 5, an energization time, and the like. In addition, when the control is performed according to the detection result of the sensing unit 18 only during the dehumidifying operation or the regeneration operation, the operation condition in which the control unit does not select the control content is that of the sensing unit 18. Regardless of the detection result, it may be controlled by preset control contents.

  When the dehumidifying operation and the regeneration operation are alternately performed under the control of the control unit, the sensing unit 18 may be configured by a temperature sensor. In this case, the temperature of indoor air is detected by the sensing unit 18. Since the residual heat of the heater 5 is input into the room during the dehumidifying operation after the regeneration operation, the room temperature gradually increases in accordance with the degree of drying and the humidity of the object to be dried. Therefore, the control unit calculates the degree of temperature rise based on the detection result of the sensing unit 18, and the dehumidifying dryer is configured to select the control content at least during the dehumidifying operation and the regeneration operation based on the result. 1D can be configured.

  That is, if the degree of temperature rise is less than a predetermined value (hereinafter referred to as “third condition value”), it is considered that the degree of drying of the indoor object to be dried is low and the humidity is high, and the degree of temperature rise is If it is more than 3rd condition value, it can be judged that the degree of drying of a to-be-dried thing is high, and humidity is low.

  For example, in the same manner as when the sensing unit 18 is configured by a humidity sensor, the control content of at least one of the dehumidifying operation and the regenerating operation is determined according to the humidity determined from the detection result of the sensing unit 18 (temperature sensor). It can comprise so that a control part may select. Note that the third condition value is determined in advance and stored, for example, in a storage element (not shown) in the control unit. There may be only one third condition value, or two or more different values.

  Moreover, you may comprise the sensing part 18 with a humidity sensor and a temperature sensor. In this case, a control part calculates | requires indoor absolute humidity from the detection result of a humidity sensor and a temperature sensor. The control unit can be configured to select the control content of at least one of the dehumidifying operation and the regeneration operation according to the obtained absolute humidity.

  In this case, data for obtaining the absolute humidity from the detection result of the humidity sensor and the detection result of the temperature sensor is stored in advance in a storage element (not shown) in the control unit, for example. The control content can be selected in the same manner as when the sensing unit 18 is configured by a humidity sensor without using a temperature sensor.

  As described above, in the dehumidifying dryer 1D, at least during the dehumidifying operation and the regeneration operation, depending on the state of air in the room (own room) in which the dehumidifying dryer 1D is installed and other rooms (other rooms). Since one operating condition can be set to an appropriate condition, useless energy consumption can be suppressed.

  Even if the relative humidity is the same value, the amount of moisture per unit volume in the air varies depending on the temperature, and as a result, the amount of moisture adsorbed by the adsorbent also changes. The humidity sensor and the temperature sensor constitute a sensing unit 18, and the control unit controls at least one of the contents of the dehumidifying operation and the regenerating operation according to the absolute humidity of the room obtained from the detection results of these sensors. It is preferable to configure the dehumidifying dryer 1D so as to select.

  As described above, the dehumidifying dryer according to the present invention is useful for use as a household or commercial dehumidifying dryer for dehumidifying and drying indoor air.

1A, 1B, 1C, 1D Dehumidifying dryer 2 Housing part 3 Air inlet 4 Blower 5 Heater 6 Rotating damper 6a Curved part (blocking part)
6b Wall surface portion 7 Air outlet 8 Exhaust duct connection portion 9 Exhaust port 10 Housing body 11 Partition case 12 Air suction port 13 Air passage 13a Circulating air passage 13b Exhaust air passage 14 Stopper (positioning means)
15 Protrusion mechanism 16 Protrusion guide 17 Temperature sensor 18 Sensing section 19 Branching section 20 Support point 3K Protrusion 4K Spring 5K Outer cylinder 6K Stopper 14A Auxiliary damper

Claims (12)

A housing part provided with an air inlet for sucking in indoor air, an air outlet for blowing out the sucked air into the room, and an exhaust outlet for exhausting the sucked air to the outside, and in the housing part A dehumidifying dryer comprising: a blower that is disposed and blows air from at least one of the air outlet and the exhaust outlet by sucking air into the housing part from the air inlet;
An air passage having a circulation air passage connected from the air inlet to the air outlet and an exhaust air passage branched in the middle of the circulation air and connected to the exhaust outlet is formed in the housing portion. ,
Provided at a branch portion between the circulation air passage and the exhaust air passage, and is movable to a position of the circulation air passage that closes the air passage to the air outlet and a position that closes the exhaust air passage. A damper having a blocking portion;
A control unit for controlling the position of the damper;
Together with adsorbent which adsorbs moisture in the air is carried, adjacent portions of the said closure part is a moving locus and the same shape of the closed portion provided adjacent to the closed portion at the branch portion a heater, further comprising a
The closed portion has the same shape as the shape of the cylinder cut by a plane parallel to the central axis thereof,
The damper is rotatable about the central axis of the cylinder,
The heater dehumidifying dryer and said Rukoto provided on the central axis side of the occlusion. The dehumidifying dryer according to claim 1 , wherein the heater has a cylindrical shape as a whole. A protrusion attached to the damper, capable of expanding and contracting in a radial direction of the cylinder, and protruding outward from the closing portion when extended;
An auxiliary damper that is rotatably supported with respect to the wall surface of the air passage, and closes a gap between the obstruction portion and the air passage when the obstruction portion is in a position of closing the exhaust air passage. ,
3. The dehumidifying dryer according to claim 1, wherein the auxiliary damper forms an exhaust air passage between the auxiliary damper and the outer surface of the closed portion by being pushed into the protrusion and rotating. 4. The dehumidifying dryer according to claim 3 , further comprising a biasing unit that biases the auxiliary damper toward the closed portion. A positioning portion for positioning a reference position of the damper;
The dehumidifying dryer according to any one of claims 1 to 4 , wherein the control unit controls the position of the damper based on the reference position. Drive means for moving the damper under the control of the control unit,
The dehumidifying dryer according to any one of claims 1 to 5 , wherein the driving means is a stepping motor. The dehumidifying dryer according to any one of claims 1 to 6 , wherein the adsorbent is silica gel or zeolite. A temperature sensor for detecting the temperature of the heater;
The dehumidifying dryer according to any one of claims 1 to 7 , wherein the control unit controls an amount of electric power supplied to the heater according to a temperature detected by the temperature sensor. The dehumidifying dryer according to any one of claims 1 to 8 , wherein the heater is a PTC heater. A sensing unit for detecting a state of the indoor air;
The control unit determines at least one of the operation content of the blower when dehumidifying the room and the operation content of the heater and the blower when regenerating the adsorbent according to a detection result of the sensing unit. The dehumidifying dryer according to any one of claims 1 to 9 , wherein the dehumidifying dryer is selected and controls operations of the blower and the heater according to the selected operation content. The dehumidifying dryer according to claim 10 , wherein the sensing unit is at least one of a humidity sensor and a temperature sensor. An electric louver is disposed at the air outlet,
Wherein, claim 1-11, characterized by controlling the blowing direction of the air from the air outlet by adjusting the opening of the louver by controlling the operation of the louver 1 Dehumidifier dryer as described in 1.

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