JP2010286174A - Air temperature control device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air temperature control device which prevents a rise in indoor temperature and humidity during drying heating operation for removing dew condensation adhered to the surface of a heat exchanger. <P>SOLUTION: The air temperature control device 10 is installed under the floor or under the roof and performs cooling/heating operation for heating or cooling sucked air by the heat exchanger 13 connected to an outdoor unit 11 and supplying the air to the indoor side and dehumidification operation for lowering indoor humidity. A discharge mechanism 20 for discharging air heated by the heat exchanger 13 to outside a living room space is connected to the air temperature control device 10, and the air temperature control device 10 includes a control means 30 performing drying heating operation for evaporating dew condensation adhered to the surface of the heat exchanger 13 generated by the cooling operation or the dehumidification operation by increasing the temperature of the heat exchanger 13 and discharging the dew condensation together with the sucked air. When detecting that the cooling operation or the dehumidification operation is continuously performed for a predetermined time or longer, the control means 30 performs the drying heating operation after the completion of the continuous operation to dry the surface of the heat exchanger 13, and discharges the air heated by the heat exchanger 13 to outside the living room space via the discharge mechanism 20. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

The present invention relates to an air temperature controller that is installed under a floor or behind a ceiling, exchanges heat of sucked air, supplies the air into a room, and performs an air conditioning operation.

2. Description of the Related Art Conventionally, an air temperature controller that heats or cools sucked air by heat exchange with a heat exchanger and supplies the air indoors to perform air conditioning operation has been commercialized. However, during cooling operation, condensation forms in the main body of the air temperature controller, for example, on the surface of the heat exchanger, and mold and other bacteria grow on the air temperature controller if left without removing this condensation. . When the air temperature controller is operated while mold and other bacteria are breeding, it gives off a strange odor inside the room, and mold and bacteria are released into the room along with the air, and the health of the resident who inhaled it. Can be a harmful factor.

Therefore, air temperature control is performed for a short heating operation (drying heating operation) in order to evaporate the condensation that has adhered to the surface of the heat exchanger during the cooling operation or after completion of the cooling operation, and to dry the surface of the heat exchanger. A machine has been proposed (see, for example, Patent Document 1).

JP-A-4-24454

However, in the drying heating operation for drying the surface of the heat exchanger, the heated air is discharged into the room, so that the temperature of the room cooled by the cooling operation rises somewhat.
The present invention has been made in view of such circumstances, and an object of the present invention is to provide an air temperature controller that does not discharge warm air into the room when water droplets attached to the surface of the heat exchanger are removed.

An air temperature controller according to the present invention that meets the above-mentioned object is installed under a floor or behind a ceiling, and heats or cools the sucked air by a heat exchanger connected to an outdoor unit and supplies the room indoors. An air temperature controller that performs a dehumidifying operation to reduce the humidity of the heat exchanger, and is connected to a discharge mechanism for discharging the air heated by the heat exchanger out of the living room space, and the heat exchanger of the heat exchanger generated by the cooling operation and the dehumidifying operation Control means for performing a heating operation for drying that exhausts the condensation attached to the surface by evaporating the heat exchanger by evaporating and sucking it together with the sucked air, and the control means continues the cooling operation or the dehumidifying operation for a predetermined time or more. The surface of the heat exchanger is dried by performing a heating operation for drying after completion of the cooling operation or dehumidifying operation continuously performed for a predetermined time or longer. Added by Has been the air discharged out room space through the discharge mechanism.

In the air temperature controller according to the present invention, the air temperature controller is installed under the floor, and the discharge mechanism is attached to the underfloor duct for sending the air heated by the heat exchanger, and the underfloor duct, An underfloor heating function that discharges air heated from the blowout chamber through the underfloor duct to the underfloor to heat the underfloor. Is preferably provided.

The air temperature controller according to claim 1 and 2, wherein the air heated by the heat exchanger during the heating operation for drying is discharged out of the room space through the discharge mechanism, and thus the heated air is discharged from the room space. It is possible to avoid an increase in the room temperature by discharging into the room.

In the air temperature controller according to claim 2, the discharge mechanism has an underfloor duct and a blowout chamber, and the control means discharges the air heated by the blowout chamber through the underfloor duct to heat the underfloor. Underfloor heating function is provided, and the discharge mechanism is used for both air discharge during drying heating operation and air discharge during underfloor heating function operation, so air is released for underfloor heating separately from the discharge mechanism There is no need to provide a mechanism for reducing the manufacturing cost.

It is explanatory drawing of the air temperature controller and discharge mechanism which concern on one embodiment of this invention. It is a side view of the air temperature controller. It is a schematic explanatory drawing of the air temperature control system using the air temperature controller.

Next, embodiments of the present invention will be described with reference to the accompanying drawings for understanding of the present invention.
As shown in FIGS. 1 to 3, an air temperature controller 10 according to an embodiment of the present invention is sucked from a suction port 14 by a heat exchanger 13 installed under the floor and connected to an outdoor unit 11. It is a device that performs a heating / cooling operation in which air is heated or cooled by heat exchange and supplied to the room and a dehumidifying operation for reducing the humidity in the room. In addition, the air temperature controller 10 is connected to a discharge mechanism 20 that discharges the air heated by the heat exchanger 13 to the outside of the living room space, and the dew condensation that adheres to the surface of the heat exchanger 13 caused by the cooling operation and the dehumidification operation The heating means 13 is provided with a control means 30 for performing a heating operation for drying which is discharged to the floor under the room space together with the air sucked from the inlet 14 by elevating the temperature of the heat exchanger 13 and evaporating it.
The heat exchanger 13 is arranged in a box-shaped casing 12, and sirocco fans 15, 16, which are examples of fans that send out the heat exchanged by the heat exchanger 13 to the outside of the casing 12. 17 is installed.

As shown in FIG. 3, the air temperature controller 10, the discharge mechanism 20 connected to the air temperature controller 10, and the refrigerant is changed to a high-temperature and high-pressure gas, or the gaseous refrigerant is condensed and liquefied to perform heat exchange. And an operation panel 50 on which an input operation for requesting the outdoor unit 11 to gasify and liquefy the refrigerant and an input operation for controlling the rotation of the sirocco fans 15, 16, and 17 are performed. Thus, the air temperature control system 51 is configured.

A gas pipe 23 and a liquid pipe 24 for connecting the heat exchanger 13 and the outdoor unit 11 are provided. During the heating operation (including the drying heating operation), the outdoor unit 11 causes high-temperature and high-pressure gas. The cooled refrigerant is sent to the heat exchanger 13 through the gas pipe 23, cooled and liquefied by the heat exchanger 13, and then returned to the outdoor unit 11 through the liquid pipe 24. Further, during the cooling operation and the dehumidifying operation, the liquid refrigerant is sent from the outdoor unit 11 to the heat exchanger 13 through the liquid pipe pipe 24 and heated by the heat exchanger 13 to be in a gaseous state. It returns to the outdoor unit 11 through the pipe 23.
The operation panel 50 is signal-connected to the control means 30 of the air temperature controller 10 through the connection line 26, and signals corresponding to each input operation performed on the operation panel 50 are controlled through the connection line 26. It is transmitted to the means 30. Further, the control means 30 is connected to the outdoor unit 11 by a connection line 45, and the control means 30 is transmitted from the operation panel 50 to the operation of the outdoor unit 11 such as a signal for requesting the start of an air conditioning operation. In the case of a related signal, a predetermined signal is transmitted to the outdoor unit 11.

As shown in FIGS. 1 and 2, the casing 12 of the air temperature controller 10 includes first and second casings 21 and 22 that are separable, and the first casing 21 is one of both side portions. Is screwed to one side of the second housing 22 and the other of both sides is connected to the other side of the second housing 22 by a hinge 31. The first and second casings 21 and 22 have a rectangular opening through which air passes in the center and a contact portion disposed around the opening, and both contact portions are air leaks. It is contact | abutted via the sealing member which is not shown in figure which prevents this.

The first housing 21 includes a plurality of suction ports 14 for taking air into the first housing 21, and the heat exchanger 13 is attached in the first housing 21. A storage chamber 27 for storing the control means 30 is formed in the first housing 21, and a substrate cover 28 for preventing entry of dust and the like into the storage chamber 27 is attached to the storage chamber 27.
A suction duct 32 that sends air taken in from the room or the outside to the first housing 21 is fixed to the suction port 14 by a fixture 33 made of a band or aluminum tape.

In the second casing 22, sirocco fans 15 and 16 that send out the air heated and cooled by the heat exchanger 13 to the room, and a sirocco fan 17 that sends out the air heated by the heat exchanger 13 to the floor below. Is installed. The sirocco fan 17 is stopped during the cooling or dehumidifying operation.
The second casing 22 includes air outlets 35 and 36 respectively corresponding to the sirocco fans 15 and 16, and the air outlets 35 and 36 each have an air outlet duct 38 that reaches a room that is air-conditioned by the air temperature controller 10. , 39 are attached by a fixture 33, and the air exchanged by the rotation of the sirocco fans 15, 16 is blown out into the room through the blowing ducts 38, 39. The blowout ducts 38 and 39 can also be formed by branching, and the air exchanged by the heat exchanger 13 passes through the blowout ducts 38 and 39 by arranging the branched tip portions in different chambers. Thus, it can be sent to a plurality of rooms.

The second casing 22 includes a discharge port 37 that discharges air to the outside of the second casing 22 by the rotation of the sirocco fan 17. The discharge mechanism 20 is connected to the discharge port 37. The discharge mechanism 20 is attached to the underfloor duct 40 having one end fixed to the discharge port 37 by a fixture 33 and the other end of the underfloor duct 40. The blowout chamber 41 is provided. The blowout chamber 41 is formed with air holes 43 for blowing air in different directions under the floor, and the blowout chamber 41 is arranged at the base of the building at the center under the floor. By blowing out from the holes 43, the underfloor space can be evenly warmed.
Height adjusting members 44 that provide gaps between the casing 12 and the installation surface (the foundation portion of the building) are provided at the four corners (two locations of the first and second casings 21 and 22) at the bottom of the casing 12. The height adjustment member 44 is attached and can adjust the clearance gap between the casing 12 and an installation surface in the range of 10-75 mm.

When the control panel 30 performs an operation for starting air conditioning or dehumidification on the operation panel 50 and receiving a signal for requesting the start of air conditioning or dehumidification from the operation panel 50, the control means 30 performs the cooling or heating operation of the sirocco fans 15 and 16. One or both of the rotations corresponding to the room in which dehumidification is required are started, and the heat exchanged by the heat exchanger 13 is sent to the room through the blowout ducts 38 and 39. And the control means 30 changes the rotational speed of the sirocco fans 15 and 16 and performs air volume adjustment, when the change operation of the air volume which air-conditions with the operation panel 50 is performed, and the signal of air volume change is received.
The control means 30 is cable-connected to the sirocco fans 15, 16, and 17, and the rotational speeds of the sirocco fans 15, 16, and 17 can be individually adjusted. The sirocco fan 17 is rotated during the drying heating operation and the underfloor heating operation.

The control means 30 cools the air with the heat exchanger 13, rotates the sirocco fans 15 and 16, and the cooling operation or the dehumidifying operation for supplying the cooled air to the room is a preset predetermined time T1 or more, For example, when it is detected that the operation is continuously performed for 1 to 5 minutes or more (3 minutes or more in this embodiment), the drying operation is performed after the cooling operation or the dehumidification operation continuously performed for the predetermined time T1 or more. Heating operation is performed to remove dew condensation adhering to the surface of the heat exchanger 13, the surface of the heat exchanger 13 is dried, and air heated by the heat exchanger 13 is passed through the underfloor duct 40 from the air hole 43 of the blowing chamber 41 Drain under the floor.

Specifically, when it is detected that the cooling operation or the dehumidifying operation has been performed for a predetermined time T1 or more, the control means 30 performs the drying operation after the cooling operation or the dehumidifying operation continuously performed for the predetermined time or more. A bit for performing the heating operation is recorded, and after the cooling operation or the dehumidifying operation is finished, the rotation of the sirocco fans 15 and 16 is stopped, the rotation of the sirocco fan 17 is started, and the outdoor through the gas pipe 23 A high-temperature and high-pressure gaseous refrigerant is sent from the machine 11 to the heat exchanger 13, and the temperature of the heat exchanger 13 is raised to evaporate the dew on the surface of the heat exchanger 13.
The evaporated dew condensation is sucked from the suction port 14 by the rotation of the sirocco fan 17 and discharged under the floor through the underfloor duct 40 and the blowout chamber 41 together with the air heated by the heat exchanger 13.

This drying heating operation is performed in order to dry the condensation generated on the surface of the heat exchanger 13 by the cooling operation and the dehumidifying operation and prevent the growth of mold and other bacteria, and the condensation on the surface of the heat exchanger 13. For a predetermined time (e.g., 5 minutes within a range of 1 to 20 minutes). Further, the air temperature controller 10 is provided with a temperature measuring means connected to the control means 30 and measuring the surface temperature of the heat exchanger 13, and the control means 30 causes the surface temperature of the heat exchanger 13 to condense by the temperature measuring means. The drying heating operation can be ended when it is detected that the temperature is completely evaporated (for example, a temperature in the range of 40 to 50 ° C.).

In addition, when the cooling operation or the dehumidifying operation is continuously performed for 3 minutes or more, for example, the heating operation for drying is started in the surface of the heat exchanger 13 in the short-time cooling operation and the dehumidifying operation. This is because condensation does not occur in the operation panel 50. When the operation of the cooling operation or the dehumidification operation is mistakenly performed on the operation panel 50, the cooling operation or the dehumidification operation is immediately stopped (for example, within 3 minutes). It is assumed.

Further, the drying heating operation is performed by rotating the sirocco fan 17 in a state where the sirocco fans 15 and 16 are stopped, so that the dew condensation that is heated by the heat exchanger 13 and is on the surface of the heat exchanger 13 is performed. The air containing water vapor is discharged from the air hole 43 of the blow-out chamber 41 to the underfloor space and is not discharged indoors. Therefore, it is possible to prevent the indoor temperature and humidity from being increased by the heating operation for drying.

The control means 30 is provided with an underfloor heating function that heats the underfloor by releasing air heated from the air holes 43 of the blowout chamber 41 through the underfloor duct 40, and the underfloor duct 40 and the blowout chamber 41. Since the discharge mechanism 20 having the above function is used for both the discharge of air during the heating operation for drying and the discharge of air during the underfloor heating operation, it is not necessary to provide a mechanism for discharging (releasing) the air separately. The number of parts and members constituting the temperature control system 51 can be reduced.

The control means 30 is connected to the other end of a connection line 45 having one end connected to the outdoor unit 11, and the control means 30 is used during indoor air-conditioning operation, underfloor heating operation, dehumidifying operation, and drying heating operation. Then, a signal for making the refrigerant into a high-temperature and high-pressure gaseous state or making the gaseous refrigerant into a liquid state and sending it to the heat exchanger 13 is transmitted to the outdoor unit 11 via the connection line 45 (see FIG. 3). .
The operation panel 50 includes a display unit for displaying the set temperature and air volume in each room, a switch for performing each operation, and the control unit 30 includes, for example, a CPU, a ROM, a memory, and the like. The ROM is loaded with a program for controlling the operation of the outdoor unit 11 and the rotation operations of the sirocco fans 15, 16, and 17.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and all changes in conditions and the like that do not depart from the gist are within the scope of the present invention.
For example, the air temperature controller can be installed behind the ceiling, and in this case, one end of the discharge mechanism that discharges air during the drying heating operation and air discharge during the underfloor heating operation is connected to the air temperature controller. By connecting to the discharge port and disposing the other end of the blowout chamber under the floor, underfloor heating can be performed, and during the drying heating operation, the heated air can be prevented from being discharged into the room.
In addition, a remote control that sends and receives signals wirelessly to and from the operation panel is provided. In addition to performing the air conditioning operation and underfloor heating operation on the operation panel, these operations can also be performed on the remote control. It is also possible to control the operation of the air temperature controller and the outdoor unit by transmitting a signal corresponding to the operation to the operation panel.

10: air temperature controller, 11: outdoor unit, 12: casing, 13: heat exchanger, 14: suction port, 15, 16, 17: sirocco fan, 20: discharge mechanism, 21: first housing, 22 : Second housing, 23: gas pipe piping, 24: liquid pipe piping, 26: connection line, 27: storage chamber, 28: substrate cover, 30: control means, 31: hinge, 32: suction duct, 33: Fixing tool, 35, 36: outlet, 37: outlet, 38, 39: outlet duct, 40: underfloor duct, 41: outlet chamber, 43: air hole, 44: height adjusting member, 45: connecting line, 50 : Operation panel, 51: Air temperature control system

Claims (2)

It is an air temperature controller that is installed under the floor or behind the ceiling and performs air-conditioning operation that supplies or heats the sucked air to the room by a heat exchanger connected to the outdoor unit and dehumidification operation that reduces the humidity in the room. And
A discharge mechanism for discharging the air heated by the heat exchanger to the outside of the living room space is connected, and dew adhering to the surface of the heat exchanger caused by cooling operation and dehumidifying operation is performed by raising the temperature of the heat exchanger. Comprising a control means for performing a heating operation for drying which is discharged together with the air which has been evaporated and sucked;
When it is detected that the cooling operation or the dehumidifying operation is continuously performed for a predetermined time or longer, the control means performs the drying heating operation after the cooling operation or the dehumidifying operation continuously performed for the predetermined time or more is completed. And drying the surface of the heat exchanger, and discharging the air heated by the heat exchanger out of the living room space through the discharge mechanism. The air temperature adjuster according to claim 1, wherein the air temperature adjuster is installed under the floor, and the discharge mechanism is attached to the underfloor duct for sending the air heated by the heat exchanger, and is attached to the underfloor duct. And a blowout chamber that discharges air heated in a plurality of directions, and the control means discharges the heated air from the blowout chamber to the underfloor through the underfloor duct to heat the underfloor. An air temperature controller characterized by a function.

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