JP2011027319A - Air temperature controller - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air temperature controller preventing inflow of air from an outlet, and supplying heated, cooled, or dehumidified air into a room. <P>SOLUTION: In the air temperature controller 10, air taken in from a suction opening 14 is heat-exchanged and heated, cooled, or dehumidified by a heat exchanger 13 connected to an outdoor unit 11 and disposed in a casing 12, and supplied into a room. A plurality of outlets 35, 36, 37 blowing the heat-exchanged air from an inside of the casing 12 to the outside is provided in the casing 12; and fans 15, 16, 17 sending the air in the casing 12 to the outside of the casing 12 from the outlets 35, 36, 37, and backflow preventing means 55, 56, 57 opened by air supply pressures of the fans 15, 16, 17 and closed by gravity when there is no air supply pressure of the fans 15, 16, 17 are respectively provided in each outlet 35, 36, 37. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

The present invention relates to an air temperature controller that heats or cools sucked air to heat or cool, or dehumidifies and supplies the air to a room.

Air conditioners (indoor units) are installed in each room for air conditioning, while multiple air temperature controllers are used to reduce the installation space and reduce installation costs. The room is air-conditioned. For example, Patent Literature 1 includes a heat exchanger that heats or cools air by heat exchange, a plurality of fans that send out the heat-exchanged air into the room, a blowout port that blows out air corresponding to each fan, An air temperature controller that is connected to the air outlet and has an air outlet duct that sends heated or cooled air into the room. The air temperature controller sends air that is heat-exchanged into the plurality of rooms through the air duct by the rotation of the fan. It is disclosed.
Since this air temperature controller has fewer components and parts than the air temperature controller installed in each room, the manufacturing cost can be reduced.

JP 2000-283548 A

However, when only a part of a plurality of rooms is air-conditioned, some fans rotate and the other fans stop, so the air temperature is adjusted from the outlet corresponding to the stopped fan. Air will flow into the aircraft. In general, an air temperature controller is provided with a heat exchanger between a suction port (suction opening) for taking in air and a blow-out port for blowing out air. The air is taken into the room by a rotating fan mixed with the air that has been taken in through the suction port and heat-exchanged without passing through the chamber, and cannot be cooled or heated at a predetermined temperature.
The present invention has been made in view of such circumstances, and an object thereof is to provide an air temperature controller that prevents air that does not pass through a heat exchanger from being sent indoors.

The air temperature controller according to the present invention that meets the above-mentioned object is connected to an outdoor unit and heat-exchanged, heated or cooled, or dehumidified by air exchanged from a suction port by a heat exchanger arranged in the housing. And a plurality of air outlets for blowing out the heat-exchanged air from the inside of the housing to the outside, and each of the air outlets includes: A fan for sending the air in the housing from the outlet to the outside of the housing, and a backflow prevention means that opens by the air pressure (air blowing pressure) of the fan and closes by its own weight when there is no air pressure of the fan are provided. It has been.

In the air temperature controller according to the present invention, it is preferable that the backflow prevention means includes a hinge attached to an upper portion of the air outlet and an opening / closing plate that rotates through the hinge.

In the air temperature controller according to the present invention, the air temperature controller is installed under the floor, and a part of the plurality of air outlets includes air for underfloor heating heated by the heat exchanger. It is preferable that an underfloor duct is connected to the underfloor, and a blowout duct is connected to the other outlets to send heat-exchanged air for heating and cooling into the room.

The air temperature controller according to any one of claims 1 to 3, wherein a plurality of air outlets for blowing heat-exchanged air out of the housing are opened by a fan and a fan air pressure, respectively, and there is no fan air pressure. In some cases, a backflow prevention means that closes by its own weight is provided, so that when some fans are operating and other fans are stopped, air is blown into the housing from the outlets corresponding to the stopped fans. Without flowing in, only the air that has been taken in through the suction port and subjected to heat exchange can be supplied to the room, and the room can be efficiently cooled and heated. In addition, since the backflow prevention means is provided at the air outlet provided in the housing, the inspector of the air temperature controller can use the heat exchanger, the fan, etc. The presence or absence of defects can be checked in a lump, and for example, the check time can be shortened as compared with the case where a backflow prevention means is provided in a duct connecting the air outlet and the room.

In particular, in the air temperature controller according to claim 2, since the backflow prevention means includes a hinge attached to the upper part of the air outlet and an opening / closing plate that rotates via the hinge, the operation and the stop of the fan are performed. The backflow prevention means can be configured with a simple structure with a small number of parts without requiring a control device or the like for controlling the operation of the backflow prevention means in conjunction with the control. It is possible to use excellent backflow prevention means.

The air temperature controller according to claim 3, wherein an underfloor duct for sending underfloor heating air to the underfloor is connected to a part of the air outlet, and an air for heating and cooling air exchanged to the other air outlet to the room Since the ducts are connected, the air outlet provided with the backflow prevention means can be used not only for cooling and heating a plurality of rooms but also for underfloor heating, and adopting the backflow prevention means having the same components and parts. Thus, the manufacturing cost can be reduced.

It is a plane sectional view of the air temperature controller concerning one embodiment of the present invention. It is a side view of the air temperature controller. It is a front 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 FIG. 1 to FIG. 4, an air temperature controller 10 according to an embodiment of the present invention is connected to an outdoor unit 11 and a suction port 14 by a heat exchanger 13 disposed in a housing 12. This is a device for supplying air to the room by heat exchange, heating or cooling, or dehumidifying the air taken in from the room. The air temperature controller 10 is installed under the floor.
The housing 12 is provided with a plurality of (in this case, three) air outlets 35, 36, and 37 that blow out the air heat-exchanged by the heat exchanger 13 from the inside of the housing 12, and the air outlet 35, 36 and 37 are provided with sirocco fans 15, 16 and 17 (an example of a fan) for sending the air in the housing 12 out of the housing 12 through the air outlets 35, 36 and 37, respectively. The air outlets 35, 36, and 37 are opened by the supply pressure of the sirocco fans 15, 16, and 17, and when there is no supply pressure of the sirocco fans 15, 16, and 17, the backflow prevention means 55, 56, and 57 are closed by their own weight. Is provided

As shown in FIG. 4, an air temperature controller 10, an outdoor unit 11 that converts the refrigerant into a high-temperature and high-pressure gas, or condenses the gaseous refrigerant into a liquid state and sends it to the heat exchanger 13, and a refrigerant in the outdoor unit 11. The air temperature control system 51 is configured to have an operation panel 50 for performing an input operation for requesting gasification and liquefaction of the sirocco and an input operation for starting and stopping the rotation of the sirocco fans 15, 16 and 17. .
The heat exchanger 13 is provided with a refrigerant gas pipe 23 and a refrigerant liquid pipe 24 that connect the heat exchanger 13 and the outdoor unit 11, and is heated to high temperature and high pressure by the outdoor unit 11 during heating operation. The refrigerant is sent to the heat exchanger 13 through the refrigerant gas pipe 23, cooled and liquefied by the heat exchanger 13, and then returned to the outdoor unit 11 through the refrigerant liquid pipe 24. The room can be heated with the condensation heat generated by the liquefaction of the refrigerant in the heat exchanger 13.
Further, during the cooling operation, the liquid refrigerant is sent from the outdoor unit 11 to the heat exchanger 13 through the refrigerant liquid pipe 24, heated in the heat exchanger 13 to be in a gaseous state, and then through the refrigerant gas pipe 23. Return to the outdoor unit 11. The heat exchanger 13 can cool and dehumidify the room with the heat of evaporation generated when the refrigerant becomes gaseous.

The control means 30 of the air temperature controller 10 is signal-connected to the operation panel 50 and the outdoor unit 11. When an input operation is performed on the operation panel 50, a signal corresponding to each input operation is sent from the operation panel 50. It is transmitted to the control means 30. The control means 30 transmits a predetermined signal to the outdoor unit 11 when the signal transmitted from the operation panel 50 is a signal related to the operation of the outdoor unit 11 such as a signal requesting the start of an air conditioning operation.

As shown in FIGS. 1 and 2, the casing 12 of the air temperature controller 10 has separable box-shaped first and second casings 21 and 22, and one side of the first casing 21. The part is screwed to one side of the second casing 22, and the other side of the first casing 21 is connected to the other side of the second casing 22 by a hinge 31. The first and second casings 21 and 22 have a rectangular opening region through which air passes in the center, and a contact portion disposed around the opening region. The first and second casings 21 and 22 The contact part 22 is contacted via a seal material (not shown) that prevents air leakage.
In addition, the first and second casings 21 and 22 are made of iron, aluminum, etc., and the outside is covered with a heat insulating material (not shown), so the air contained in the first and second casings 21 and 22 is Prevents large temperature changes from outside air.

A storage chamber 27 for storing the control means 30 is formed in the first casing 21, and a substrate cover 28 for preventing dust and the like from entering the storage chamber 27 is attached to the storage chamber 27.
Further, the first casing 21 is provided with a plurality of, for example, four suction ports 14 for taking air into the first casing 21, and each suction port 14 has a side wall portion 48 (first portion) of the first casing 21. A circular opening region for taking in air provided side by side on the side facing the connecting portion with the casing 2 is formed.

A plurality of, for example, four suction ducts 32 for sucking air taken from the room into the housing 12 are connected in parallel to the first casing 21 of the housing 12 via the suction port 14. Yes. Each suction duct 32 is fixed to each suction port 14 by a fixture 33 made of a band or aluminum tape.
If one suction port and one suction duct are used, it is necessary to increase the diameter of the suction port and the suction duct in order to take in a sufficient amount of air into the housing. This is not easy and takes time to install. In addition, when one suction port having an opening area having the same area as the total area of the opening areas formed in the first casing 21 by the plurality of suction openings 14 is provided in the first casing, the first suction port is connected to the first casing 21. Since the air that has flowed into the casing passes through the heat exchanger in a specific part, the heat exchange rate is lower than when a plurality of air inlets 14 are provided and air flows through the heat exchanger 13 as a whole. To do.

The heat exchanger 13 is mounted in the first casing 21, and a drain receiver is received on the lower side of the heat exchanger 13 to receive condensation that adheres to the surface of the heat exchanger 13 during cooling operation and drops as water droplets. 18, and a drain pipe 19 that discharges water drops received by the drain receiver 18 to the outside of the housing 12 can be attached to the drain receiver 18.
Further, on the lower side of the heat exchanger 13 in the first casing 21, air taken in from the suction port 14 passes through a space below the heat exchanger 13 and does not pass through the heat exchanger 13. It is possible to provide an air blocking member 20 to prevent.

In the second casing 22, there are installed sirocco fans 15 and 16 for sending the air heated and cooled by the heat exchanger 13 into the room, and a sirocco fan 17 for sending the air heated by the heat exchanger 13 below the floor. ing. The air outlets 35, 36, and 37 are provided in the second casing 22.
The sirocco fans 15, 16, and 17 are controlled by the control means 30 connected to the sirocco fans 15, 16, and 17, and correspond to the outlets 35, 36, and 37, respectively. 30 rotates the sirocco fans 15, 16, and 17 at different rotational speeds, so that the air in the housing 12 is sent out of the housing 12 at different speeds from the air outlets 35, 36, and 37, respectively.

The air outlets 35 and 36 each have one end arranged in the room that is the air conditioning target of the air temperature controller 10 and the air ducts 38 and 39 that send the air for air conditioning that has been heat-exchanged by the heat exchanger 13 to the room. The other end of each is connected by a fixture 33. The air exchanged by the heat exchanger 13 is supplied into the room through the blowout ducts 38 and 39 by the rotation of the sirocco fans 15 and 16.
Since one end portions of the blowout ducts 38 and 39 are arranged in different rooms (rooms), the air volume can be adjusted for each room by separately controlling the rotation speeds of the sirocco fans 15 and 16.

In addition, one end of an underfloor duct 40 that sends underfloor heating air heated by the heat exchanger 13 to the underfloor is fixed to the air outlet 37 of the air outlets 35, 36, and 37 by the fixture 33. Connected to the other end of the underfloor duct 40 is a blowing chamber 42 that discharges heated air in different directions under the floor. The control means 30 can rotate the sirocco fan 17 and send the air heated by the heat exchanger 13 through the underfloor duct 40 and the blowout chamber 42 to the underfloor for underfloor heating.
In addition, since the air hole 43 which blows off air in a different direction under the floor is formed in the blowout chamber 42 and the blowout chamber 42 is arranged at the base of the building at the center under the floor, the heated air is By rotating the sirocco fan 17, the air is blown out in different directions from the plurality of air holes 43, and the underfloor space can be evenly heated.

Here, in the housing 12, a heat exchanger 13 for exchanging heat is arranged downstream of the suction port 14 for taking in air along the air flow, and the sirocco fans 15, 16, 17 are arranged downstream thereof. Is arranged, and further, outlets 35, 36, and 37 are arranged downstream thereof. Further, the housing 12 is not provided with a mechanism for restricting the flow of air from the heat exchanger 13 to the air outlets 35, 36, 37, for example, a partition plate or the like, and is taken in from the suction port 14. The air flows through the entire surface of the heat exchanger 13 and flows to the air outlets 35, 36, and 37. Therefore, the flow of air is restricted and a partial area of the heat exchanger 13 is assigned to each of the outlets 35, 36, and 37, and the assigned area of the heat exchanger 13 is assigned to each of the outlets 35, 36, and 37. Compared to the structure in which only the air that has passed through is sent, the air blown out from the housing 12 is effective for the entire heat exchanger 13 even when some of the sirocco fans 15, 16, and 17 are rotated. The heat exchange used can be used.

In addition, when a fan is provided upstream of the heat exchanger 13 instead of the sirocco fans 15, 16, and 17, in order to discharge air from a desired air outlet among the air outlets 35, 36, and 37, (1 ) Provide a mechanism for restricting the flow of air in the housing 12 to operate the fan corresponding to the air outlets 35, 36, 37, or (2) Open / close control for controlling the opening / closing of the air outlets 35, 36, 37 It is necessary to provide means. And when providing the mechanism which restrict | limits the flow of air in the housing | casing 12, the heat exchange which used the heat exchanger 13 whole effectively cannot be performed, and when an opening / closing control means is provided, the number of components and components will increase. .

Furthermore, when a fan is provided upstream of the heat exchanger 13, the air blown out by the fan hits the surface of the heat exchanger 13 and a wind noise can be generated.
The sirocco fans 15, 16, and 17 are used in the air temperature adjuster 10. Compared with the use of a mixed flow fan, a propeller fan, or the like, the air volume due to resistance generated when air is blown (when air is sent). When the air is sent through the blowout ducts 38 and 39 and the underfloor duct 40, it is possible to ensure a sufficient static pressure.

Further, since the sirocco fans 15, 16, and 17 are disposed in the housing 12, the sirocco fans 15, 16, and 17 are attached to the housing 12 in advance, and the sirocco fans 15, 16 are installed when the air temperature control system 51 is installed. The installation time can be shortened compared to installing a sirocco fan in each duct when installing an air temperature controller in order to install a sirocco fan in the blowout duct and underfloor duct. it can.
Furthermore, since the sirocco fans 15 and 16 are provided in the housing 12 arranged under the floor, the sirocco fan can be kept away from the room as compared with the case where the sirocco fan is attached to the blowout duct. It is possible to prevent the operating sound of the fan from reaching the room.

When the sirocco fan 15 is stopped, the backflow prevention means 55 provided at the air outlet 35 (the same applies to the backflow prevention means 56 provided at the air outlet 36 and the backflow prevention means 57 provided at the air outlet 37). The air outlet 35 is closed by its own weight, the inflow of air from the air outlet 35 into the housing 12 is blocked, and when the sirocco fan 15 is operating, the opening / closing plate 45 is opened by the air pressure of the sirocco fan 15; An air outflow area is provided at the air outlet 35.

The air outlets 35, 36, and 37 have openings 58, 59, and 60 formed in the side wall portion 49 (side facing the side wall portion 48) of the housing 12, respectively. Then, it flows out of the housing 12 through the openings 58, 59 and 60.
The backflow prevention means 55, 56, 57 are hinges 52, 53, 54 and hinges 52, 53 attached to the upper part of the outlets 35, 36, 37, specifically the upper parts of the openings 58, 59, 60, respectively. , 54, and open / close plates 45, 46, and 47 that rotate via the respective doors.
The opening / closing plate 45 (hereinafter, the same applies to the opening / closing plates 46, 47) rotates around the axis of the hinge 52 to open the opening 58 of the air outlet 35, and from the opening 58 to the outside of the housing 12. The outflow of air is enabled, the opening 58 is closed, and the inflow of air from the opening 58 into the housing 12 is blocked.

That is, the opening / closing plate 45 is vertically arranged due to its own weight when the sirocco fan 15 is stopped, and the outer peripheral portion is closely attached to the side wall portion 49 of the housing 12 (more precisely, the peripheral portion of the opening portion 58). When the sirocco fan 15 is closed, the air pressure generated by the operation of the sirocco fan 15 can be rotated around the axis of the hinge 52 to open the opening 58 so that the air in the housing 12 can be sent out. It becomes a state. In addition, in order to prevent the air leak between the outer peripheral part of the opening-and-closing plates 45, 46, and 47, and the side wall part 49 of the housing | casing 12, and to seal the opening parts 58, 59, and 60 each reliably, the opening-and-closing plates 45, 46, and 47 are used. A sealing material (not shown), for example, rubber packing, silicon, or the like, can be provided on the outer peripheral portion of the.

With this configuration, for example, when the sirocco fan 15 is rotating and the sirocco fans 16 and 17 are stopped, the opening / closing plate 45 is rotated to the outside of the housing 12 by the air pressure generated by the rotation of the sirocco fan 15. Then, the opening 58 of the air outlet 35 is opened. Then, due to the pressure difference between the inside and outside of the housing 12 caused by the rotation of the sirocco fan 15, force is applied to the vertically disposed opening and closing plates 46 and 47 inward of the housing 12 to seal the openings 59 and 60 respectively. In addition, air can be prevented from flowing into the housing 12 from the air outlets 36 and 37. Therefore, air flows into the housing 12 from the air outlets 36 and 37 and is not mixed with the air taken in from the suction port 14 and heat-exchanged by the heat exchanger 13, but is taken in from the suction port 14 and heat. Only the exchanged air can be supplied into the room via the air outlet 35 and the air outlet duct 38.

In addition, since the backflow prevention means 55, 56, and 57 are provided in the air outlets 35, 36, and 37 provided in the housing | casing 12, the inspector of the air temperature controller 10 has arrange | positioned the housing | casing 12. Under the floor, together with the heat exchanger 13 and the sirocco fans 15, 16, 17 etc., the backflow prevention means 55, 56, 57 can be inspected collectively, for example, in the middle of the blowout ducts 38, 39 and the underfloor duct 40 Compared with the provision of the backflow prevention means, it is possible to shorten the time required for the collective inspection.

Further, by removing the blowout ducts 38, 39 and the underfloor duct 40 from the blowout openings 35, 36, 37, the operator can check the flow through the blowout openings 35, 36, 37 for backflow prevention means 55. , 56 and 57 can be removed from the second casing 22, so that it is not necessary to provide the air temperature adjuster 10 with a mechanism only for checking and taking out the backflow prevention means 55, 56 and 57.
On the other hand, for example, when the backflow prevention means is arranged in the blowout duct and the underfloor duct, it is necessary to provide a mechanism for taking out the backflow prevention means for inspection and repair of the backflow prevention means in the blowout duct and the underfloor duct. Increase the number of parts and parts that make up the air temperature control system.

Moreover, height adjustment which provides a clearance gap between the housing | casing 12 and an installation surface (foundation part of a building) in the four corners (two each of the 1st and 2nd casings 21 and 22) of the lower part of the housing | casing 12. The member 41 is attached, and the height adjusting member 41 can adjust the gap between the housing 12 and the installation surface within a range of 10 to 75 mm.

The operation panel 50 includes a display unit that displays the set temperature and air volume in each room, and switches that perform each operation. The control unit 30 includes, for example, a CPU, a ROM, a memory, and the like. A program for controlling the operation of the outdoor unit 11 and the rotational operation of the sirocco fans 15, 16, and 17 is installed.

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.
Further, instead of attaching a sealing material for preventing air leakage to the opening / closing plate, a sealing material can be provided at a portion where the opening / closing plate of the housing is in close contact.

10: Air temperature controller, 11: Outdoor unit, 12: Housing, 13: Heat exchanger, 14: Suction port, 15, 16, 17: Sirocco fan, 18: Drain receiver, 19: Drain pipe, 20: Air Blocking member, 21: first casing, 22: second casing, 23: refrigerant gas piping, 24: refrigerant liquid piping, 27: storage chamber, 28: substrate cover, 30: control means, 31: hinge, 32: Suction duct, 33: fixture, 35, 36, 37: outlet, 38, 39: outlet duct, 40: underfloor duct, 41: height adjusting member, 42: outlet chamber, 43: air hole, 45, 46, 47: Opening and closing plate, 48, 49: Side wall, 50: Operation panel, 51: Air temperature control system, 52, 53, 54: Hinge, 55, 56, 57: Backflow prevention means, 58, 59, 60: Opening

Claims (3)

An air temperature controller that is connected to an outdoor unit and is supplied into the room by heat exchange and heating or cooling, or dehumidifying the air taken in from the suction port by a heat exchanger disposed in the housing,
The casing is provided with a plurality of air outlets for blowing heat-exchanged air out of the casing, and each of the air outlets has air in the casing from the outlet to the housing. An air temperature controller characterized by being provided with a fan sent out to the outside and a backflow prevention means that opens by the air pressure of the fan and closes by its own weight when there is no air pressure of the fan. 2. The air temperature controller according to claim 1, wherein the backflow prevention means includes a hinge attached to an upper portion of the air outlet and an opening / closing plate that rotates through the hinge. 3. Temperature control. The air temperature adjuster according to claim 1 or 2, wherein the air temperature adjuster is installed under a floor, and a part of the plurality of air outlets has an underfloor heater heated by the heat exchanger. An air temperature adjuster characterized in that an underfloor duct for sending air for use under the floor is connected, and a blowout duct for sending heat exchanged air for heating and cooling into the room is connected to the other outlet.

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