JP2019184124A - Air conditioner - Google Patents

Abstract

To provide an air conditioner suppressing electric power consumption of a humidification unit, capable of continuously transferring humidified air into a room without causing dew condensation and the like, and improving humidification performance.SOLUTION: An air conditioner includes: an outdoor air conditioning unit having an indoor refrigerant circuit; an indoor air conditioning unit having the indoor refrigerant circuit connected to the outdoor refrigerant circuit; and a humidification unit removing moisture in outer air adsorbed in the adsorption material from the adsorption material and transferring the humidified air to the air conditioning unit. The indoor air conditioning unit and the humidification unit are installed outdoors. The humidification unit is integrally formed with the indoor air conditioning unit, is located below the indoor air conditioning unit, and is provided with a humidified air passage through which the humidified air transferred from the humidification unit is directly communicated to the indoor blowing passage of the indoor air conditioning unit.SELECTED DRAWING: Figure 4

Description

  The present invention relates to an air conditioner that can humidify indoor air by directly transporting humidified air into the room using a humidifying unit.

In general, in the heating operation of an air conditioner, it is known that only the room temperature rises without supplying moisture, so that the relative humidity in the room decreases. For this reason, it has been proposed to humidify the room by providing a humidifying unit in the air conditioner.
The humidification unit is provided in the outdoor unit, adsorbs moisture contained in the outdoor air with a moisture absorbent material, desorbs the adsorbed moisture, and transports the humidified air into the room via a thermally insulated pipe or the like. .
In such an air conditioner, since the humidifier unit is provided in the outdoor unit, the pipe for transporting the humidified air from the humidifier unit to the indoor unit becomes long, and heat is taken from the humid air from the cool air of the outside air during the transport. Condensation may occur in the piping. Therefore, the room cannot be sufficiently humidified.
Therefore, a sensor that detects a condition related to condensation is provided near the outlet of the humidifying passage or in the vicinity of the outlet, and a drying operation that blows dry air into the humidifying passage, and a humidifying operation that blows humidified air from the outside into the room. It is disclosed that a humidifying device that performs the above-described operation is provided, and the drying operation and the humidifying operation are appropriately alternately operated to prevent the accumulation and generation of condensed water in the humidifying passage (see, for example, Patent Document 1).

  In addition, the humidification unit is configured separately from the outdoor air conditioning unit, and it is attached to the outdoor side in the vicinity of the installation position of the indoor air conditioning unit, making it possible to shorten the piping that transports humidified air from the humidifying unit to the indoor unit. It has been disclosed that it is possible to prevent the generation of condensed water in the piping and maintain an appropriate amount of humidification (for example, see Patent Document 2).

JP 2001-324198 A JP 2002-089898 A

However, in the above-mentioned prior art document, since a pipe that conveys humidified air generated by the humidifying unit into the room is used, a sufficient flow path cross-sectional area cannot be secured, and the air volume that conveys humidified air into the room Is difficult to increase, and sufficient humidification performance cannot be improved.
Further, in the above prior art, the humidifying unit takes out the moisture contained in the outdoor air, uses the outdoor air as an air source to be desorbed and transported when the moisture is desorbed and transported indoors, The outdoor air is warmed by a heating means such as a heater to obtain the amount of heat required for desorption.
In particular, when heating using a humidifying operation is used, the outdoor air temperature is low, and a large amount of heat is required to desorb moisture from the moisture-absorbing material, and a large amount of power is required, such as a heater as a heating means.

  Therefore, an object of the present invention is to suppress the power consumption of the humidifying unit, enable the humidified air to be continuously conveyed into the room without causing condensation, and improve the humidifying performance.

  In order to solve the above problems, according to one aspect of the present invention, an outdoor air conditioning unit having an outdoor refrigerant circuit, an indoor air conditioning unit having an indoor refrigerant circuit connected to the outdoor refrigerant circuit, and adsorption A humidifier unit that desorbs moisture from the adsorbed air from the adsorbent and conveys humidified air to the indoor air conditioning unit, wherein the indoor air conditioning unit and the humidifying unit are outdoor The humidifying unit is integrated with the indoor air conditioning unit, and is located at the lower part of the indoor air conditioning unit. The humidified air conveyed from the humidifying unit is directly passed to the indoor air passage of the indoor air conditioning unit. An air conditioner is provided, which is provided with a humidified air passage for communication.

  ADVANTAGE OF THE INVENTION According to this invention, the air volume which conveys humidified air indoors can be increased, the dew condensation of the water | moisture content contained in the air for humidification can be suppressed, and humidification performance can be improved. In addition, it is possible to provide an air conditioner with a humidifying function that consumes less power than before.

The schematic perspective view of the outdoor part of the air conditioner concerning one embodiment of this invention 1 is a schematic configuration diagram of an air conditioner according to an embodiment of the present invention. Schematic sectional view around the humidification rotor in the humidification unit Schematic sectional view of a main unit and a humidifying unit during heating operation according to one embodiment of the present invention The perspective view of the indoor front panel in FIG. Schematic sectional view of a main unit and a humidification unit when operation is stopped according to one embodiment of the present invention Schematic sectional view of a main unit and a humidifying unit during cooling operation according to one embodiment of the present invention The perspective view of the indoor front panel in FIG. The schematic perspective view of the outdoor part of the air conditioner concerning another embodiment of this invention Schematic sectional view of the main unit and the humidifying unit in FIG. Schematic sectional view of an air conditioner according to yet another embodiment of the present invention.

  The first invention includes an outdoor air-conditioning unit having an outdoor refrigerant circuit, an indoor air-conditioning unit having an indoor refrigerant circuit connected to the outdoor refrigerant circuit, and moisture from outside air adsorbed by an adsorbent. And a humidifying unit that conveys humidified air to the indoor air conditioning unit, wherein the indoor air conditioning unit and the humidifying unit are installed outdoors, and the humidifying unit includes the indoor air conditioning unit. The unit is configured to be integrated with a unit, and is provided at a lower portion of the indoor air conditioning unit so as to provide a humidified air passage that directly communicates humidified air conveyed from the humidifying unit to an indoor air passage of the indoor air conditioning unit. Yes.

  With this configuration, the humidifying unit is adjacent to the lower part of the indoor air conditioning unit, and the humidified air is conveyed to the indoor air conditioning unit through the humidified air passage directly communicating with the humidifying unit. A road cross-sectional area can be secured, and the amount of air that conveys humidified air into the room can be increased. Moreover, since the humidified air passage is in the housing, it is possible to suppress dew condensation of moisture contained in the humidifying air.

According to a second aspect of the present invention, the humidifying unit includes a moisture absorbing member that adsorbs and desorbs moisture in the air, heating means for desorbing moisture from the moisture absorbing member, and humidified air containing moisture desorbed from the moisture absorbing member. Transporting means for transporting the indoor air conditioning unit to the indoor air conditioning unit, adsorbing moisture of outdoor air to the moisture absorbing member, transporting a part of the indoor air sucked from the room by the indoor air conditioning unit to the humidifying unit, and heating means Then, moisture is desorbed from the adsorbing member, a part of the room air is humidified, and conveyed to the room again via the room air conditioning unit. With this configuration, since the indoor air having a temperature higher than that of the outdoor cold air can be used as the air source of the heated air necessary for desorbing moisture from the moisture absorbing member, the input heat amount of the heating means The power consumption of the humidifying unit can be suppressed.
3rd invention is a humidification rotor which the said moisture absorption member arrange | positions so that an axial direction may turn into a substantially horizontal direction, and rotates. Thereby, in a humidification rotor, an adsorption | suction area | region and a desorption area | region can be provided, and it can humidify continuously, without drying operation by rotating, and the depth size of a humidification unit can be reduced in size.
4th invention is arrange | positioned so that the upper part of the said humidification rotor may be located upwards by the front view from the lower side of the blower outlet of the said indoor air conditioning unit. Thereby, it becomes possible to arrange a part of the humidification rotor of the humidification unit on the rear guider back side of the indoor air conditioning unit, and when the indoor air conditioning unit and the humidification unit are combined, the height size of the main body is reduced. Can be
According to a fifth aspect of the present invention, the humidifying unit includes a supply port to which a part of room air is supplied from the indoor air conditioning unit, and a discharge port that conveys humidified air to the indoor air conditioning unit. Both the supply port and the discharge port are connected to the downstream side of the blowing means. Thereby, the influence on the ventilation performance of the indoor air conditioning unit can be suppressed, the transport path of the air from the humidification unit can be shortened, and the occurrence of condensation in the humidified air transport path can be suppressed. Can do. Further, since the air in the vicinity of the supply port of the humidifying unit is disposed at the downstream side of the air blowing means of the indoor air conditioning unit, the air temperature becomes higher than the indoor air temperature when heating is used, and moisture is desorbed from the moisture absorbing member. The required heat capacity of the heating means can be reduced.
According to a sixth aspect of the present invention, in the humidification unit, the discharge port is provided in the vicinity of the heating means. Thereby, in the conveyance path | route connected from the said humidification unit to the said indoor air conditioning unit, even if the outside temperature is low, it suppresses generation | occurrence | production of dew condensation and conveys humidified air by the heating means. be able to.
Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, the specific structure of the air conditioner concerning this invention is not restricted to the following embodiment and its modification, It can change in the range which does not deviate from the summary of invention.

(Embodiment)
FIG. 1 is a schematic perspective view of an air conditioner according to an embodiment of the present invention viewed from the outside.
As shown in FIG. 1, the air conditioner of the present invention is configured to air-condition the room with a main unit 1 and an outdoor unit 2 arranged outside the room. Although the details will be described later, the air conditioner of the present invention is installed so that the main unit 1 is in contact with the outer surface of the wall C of a building such as a residence that separates the outdoor from the indoor.
FIG. 2: shows the schematic block diagram of the air conditioner concerning one Embodiment of this invention.
By performing a vapor compression refrigeration cycle from the air conditioner, it is possible to perform indoor cooling and heating. The air conditioner of the present invention is mainly configured by connecting a main unit 1 and an outdoor unit 2. Here, the main unit 1 includes an indoor air conditioning unit 10 and a humidification unit 20, and the outdoor unit 2 and the indoor air conditioning unit 10 are connected via a liquid refrigerant pipe 35 and a gas refrigerant pipe 36. .
In the air conditioner of the present invention, the indoor air conditioning unit 10 is installed outside and constitutes a part of a refrigeration cycle circuit. The indoor air conditioning unit 10 mainly includes a heat exchanger 11 for indoor air conditioning.
The indoor air-conditioning heat exchanger 11 functions as a refrigerant evaporator during cooling operation, cools indoor air, functions as a refrigerant radiator during heating operation, and overheats indoor air. The liquid side of the indoor air conditioning heat exchanger 11 is connected to the liquid refrigerant pipe 35, and the gas side of the indoor air conditioning heat exchanger 11 is connected to the gas refrigerant pipe 36.
The indoor air-conditioning unit 10 sucks in indoor air through a duct communicating with the wall, exchanges heat with the refrigerant in the indoor air-conditioning heat exchanger 11, and then supplies another duct communicating with the wall as supply air. In order to blow out into the room, an indoor fan 12 is provided. For example, a cross flow fan is used as the indoor fan 12. The indoor blower fan 12 is driven by a fan motor capable of controlling the rotation speed. That is, the indoor air conditioning unit 10 can control the amount of air blown out from the outlet 14 into the room.
The indoor air conditioning unit 10 includes an indoor air conditioning control unit that controls the operation of each unit constituting the indoor air conditioning unit 10. This indoor air-conditioning control unit includes a CPU, a memory, and the like, and transmits and receives control signals and the like with the remote control, and transmits and receives control signals and the like with the outdoor unit 2 via signal lines. It can be performed.
The outdoor unit 2 is installed outside and constitutes a part of the refrigeration cycle circuit. The outdoor unit 2 includes an outdoor heat exchanger 31, a compressor 33, a four-way valve 34, an expansion valve 37, a liquid side closing valve 38, and a gas side closing valve 39.
The low-pressure refrigerant of the refrigeration cycle is compressed by the compressor 33 until the pressure becomes high. The compressor 33 has a hermetically sealed structure in which a rotary type or scroll type positive displacement compression element is rotationally driven by a compressor motor whose frequency can be controlled by an inverter circuit, and the operating frequency can be controlled. It has become.
The four-way valve 34 is a switching valve for switching the direction of the refrigerant flow in the refrigerant cycle circuit. During the cooling operation, the outdoor heat exchanger 31 functions as a radiator for the refrigerant compressed by the compressor 33 so that the indoor air conditioner The heat exchanger 11 is switched to a cooling operation state in which the heat exchanger 11 functions as an evaporator for the refrigerant radiated by the outdoor heat exchanger 31. On the other hand, during the heating operation, the outdoor heat exchanger 31 is caused to function as an evaporator for the refrigerant radiated by the indoor air conditioner heat exchanger 11, and the indoor air conditioner heat exchanger 11 is used as a refrigerant radiator compressed by the compressor 33. Switch to the heating operation state to function. The expansion valve 37 reduces the high-pressure refrigerant of the refrigeration cycle radiated by the outdoor heat exchanger 31 to the low pressure of the refrigeration cycle during the cooling operation. The expansion valve 37 reduces the high-pressure refrigerant of the refrigeration cycle radiated by the indoor air conditioning heat exchanger 11 to the low pressure of the refrigeration cycle during the heating operation. The expansion valve 37 is disposed near the liquid side closing valve 38.
The outdoor unit 2 includes an outdoor blower fan 32 that sucks outside air into the outdoor unit 2, exchanges heat with the refrigerant in the outdoor heat exchanger 31, and blows it out of the outdoor unit 2. For example, a propeller fan is used as the outdoor blower fan 32. Here, an outdoor blower of a type other than the propeller type may be used, and the outdoor unit 2 of the present invention can be configured.
The outdoor unit 2 includes an outdoor air conditioning control unit that controls the operation of each unit constituting the outdoor unit 2. The outdoor air conditioning control unit includes a CPU, a memory, and the like, and can transmit and receive control signals and the like to and from the indoor air conditioning unit 10 via a signal line.
The humidification unit 20 is housed in the main unit 1 and is provided separately from the outdoor unit 2 and is attached below the indoor air conditioning unit 10 disposed outside. The humidification unit 20 and the indoor air conditioning unit 10 are connected by a supply port 25 that supplies room air to the humidification unit 20 and a discharge port 26 that discharges air humidified by the humidification unit 20. Both outlets 26 are arranged on the downstream side of the indoor air blower fan 12 in the indoor air conditioning unit 10.
FIG. 3 is a schematic cross-sectional view of the periphery of the humidification rotor 21 of the humidification unit 20 and shows the air flow in the humidification rotor 21 part. After the air supplied from the indoor air-conditioning unit 10 passes through the RA, the humidifying rotor 21 and is humidified, the air supplied to the indoor air-conditioning unit 10 is SA, the outside air sucked from the outdoor B is OA, and after passing through the humidifying rotor 21 , Air removed from the water and discharged to the outside air is represented by EA.
The indoor air RA supplied from the room is led to the desorption air passage 24 through the supply port 25, warmed by the heater 22, passes through the desorption region of the humidification rotor 21, and moisture is desorbed from the humidification rotor 21, Humidified air is generated. The humidified air SA is conveyed to the indoor air conditioning unit 10 through the outlet 26 by the detachable fan 24a.

The humidification rotor 21 is composed of a rotating body of a moisture absorbing material formed in a honeycomb shape, for example, and air (outside air) passes through the humidification rotor 21 so that moisture is adsorbed by the humidification rotor 21. At this time, the operation of the suction fan 23a allows air (outside air) to pass through the humidifying rotor 21 and adsorbs moisture contained in the outside air.
For example, silica gel or zeolite is used as the moisture absorbing material. A gear portion (not shown) is formed on the entire circumference of the humidification rotor 21, and the adsorption region where moisture is adsorbed by the humidification rotor 21 is supplied to the humidification rotor 21 via the rotor drive gear 27 by the rotor drive motor 28. Rotates and moves to the desorption region.

As described above, the humidification unit 20 continuously rotates the humidification rotor 21 from the adsorption region to the desorption region, so that the humidified air can be continuously conveyed into the room.
FIG. 4 is a cross-sectional view when the main unit 1 is attached to a wall C of a building such as a house that separates the outside from the room, according to one embodiment of the present invention.
The main unit 1 is installed so as to be in contact with the outer surface of the wall C, a rectangular through hole is provided in the wall C, and the blowout duct 17 and the suction duct 18 are disposed in the through hole. Further, the main body unit 1 accommodates an indoor air conditioning unit 10 and a humidification unit 20. The humidifying unit 20 is disposed below the indoor air conditioning unit 10, and further disposed below the rear side of the rear guider 13 of the air blowing circuit of the indoor air conditioning unit 10. When the upper part of the humidification rotor 21 is seen from the front of the blower outlet 14, it arrange | positions so that it may be located upwards.
The heater 22 which is a heating means is disposed inside the humidification rotor 21 and below the rear guider 13 of the indoor air conditioning unit 10. A discharge port 26 through which humidified air is discharged to the indoor air conditioning unit 10 is provided in the vicinity of the heater 22. Thereby, the air in the peripheral portion is warmed by the heater 22 on the back side of the rear guider 13, and it is possible to suppress dew condensation even when the main unit 1 is installed outdoors.
In the indoor air conditioning unit 10, the air in the room A is sucked from the suction port 15, passes through the indoor air conditioning heat exchanger 11, is heat-exchanged and temperature-controlled, and then passes through the blowout duct 17 to be blown out. It blows out into the room A from the mouth 14.
FIG. 5 is a perspective view of the present embodiment as viewed from the room A.
As shown in FIG. 5, the suction port 15 is opened only upward, the side wall of the suction duct 18 is covered with a cover, and a short circuit in which air blown from the blower port 14 is sucked into the suction port 15. Is suppressed.
The front panel 16 shown in FIGS. 4 and 5 can be moved back and forth and vertically, and shows the position of the front panel 16 during heating operation. By operating the front panel 16 in the forward direction, the suction duct 18 is simultaneously moved in the forward direction, and the suction port 15 is formed on the room A side, so that the room air can be sucked.
The sucked room air is warmed by the room air conditioning unit 10, passes through the blowout duct 17, and is blown out downward from the blowout opening 14. Therefore, heated air can be delivered by the airflow to the feet.
FIG. 6 is a cross-sectional view of the main unit 1 when the operation of the air conditioner of the present embodiment is stopped. The space occupied by the air conditioner in the room can be considerably reduced, and further, it is possible to provide a form that is easy to harmonize with the inner wall surface of the indoor space in terms of design.
FIG. 7 is a cross-sectional view of the main unit 1 when the air conditioner of the present embodiment is in cooling operation, and FIG. 8 is a perspective view when viewed from the room A at that time.
As shown in FIG. 7, the front panel 16 is moved upward, and the air cooled by the indoor air conditioning unit 10 becomes an air flow upward and blown without the blowout opening 14 being blocked by the front panel 16. If the height position of the outlet 14 is installed above the wall surface, a ceiling airflow can be easily realized, and the entire room can be comfortably cooled.
In the above embodiment, the air conditioner is configured to air-condition the room A with the main body unit 1 and the outdoor unit 2 arranged outside the room B, and a building such as a house that separates the room from the room. Although the main unit 1 is installed in contact with the outer side surface of the wall C, the air conditioner in which the present invention can be implemented is not limited to the wall surface integrated type.
For example, the present invention can be applied to a window-integrated air conditioner in which the main unit 1 is installed in the window D as shown in FIG.
FIG. 10 shows a cross-sectional view of the main unit 1 which is another embodiment of the present invention shown in FIG.
In another embodiment of the present invention shown in FIG. 9 and FIG. 10, the main unit 1 can be attached to the window frame of the window D, and the main unit 1 and the outdoor unit 2 are connected by the outdoor B. The main body unit 1 includes an indoor air conditioning unit 10 and a humidifying unit 20, and the indoor air is directly passed from the indoor air conditioning unit 10 through a suction port 15 of the front panel 16 through a suction port 15 without using a duct. Then, the temperature is controlled by the heat exchanger 11 for indoor air conditioning, and blown into the room A from the blowout port 14.
By installing the main unit 1 on the window frame of the window D, the air conditioner of the present invention can be installed without providing an opening on the wall surface of the building.
FIG. 11 is a cross-sectional view of an air conditioner according to another embodiment, which is another embodiment different from the above embodiment.
In the above embodiment, the air conditioner is configured to air-condition the room A with the main body unit 1 and the outdoor unit 2 arranged outside the room B, and a building such as a house that separates the room from the room. The main unit 1 is installed in contact with the outer surface of the wall C, and the outdoor unit 2 is installed below the main unit 1 so that the main unit 1 and the outdoor unit 2 are integrated. .
The outdoor unit 2 of the present embodiment has the same size in the depth direction and the width direction of the main unit 1 and is formed in a tower shape, and mainly includes an outdoor heat exchanger 31, an outdoor blower fan 32, and a compressor 33. Is done. As the outdoor blower fan 32, for example, a cross flow fan is used and arranged in the vertical direction as shown in FIG.
Further, the compressor 33 is disposed below the outdoor heat exchanger 31 and the outdoor blower fan 32.
In the above embodiment, since the outdoor unit 2 is integrated, the degree of freedom of installation of the outdoor unit 2 is reduced, but the liquid refrigerant pipe and the gas refrigerant pipe (not shown) can be made the shortest distance, and the amount of refrigerant is reduced. can do. Further, by integrating the main unit 1 and the outdoor unit 2, there is an effect that the appearance design in the outdoors is improved.

  The present invention is applicable to any air-conditioning system that performs air-conditioning control of a space where an operator exists.

DESCRIPTION OF SYMBOLS 1 Main body unit 2 Outdoor unit 10 Indoor air conditioning unit 11 Heat exchanger for indoor air conditioning 12 Indoor air blower fan 13 Rear guider 14 Air outlet 15 Air inlet 16 Front panel 17 Air outlet duct 18 Air inlet duct 19 Filter 20 Humidifying unit 21 Humidification rotor 22 Heating heater 23 Adsorption air passage 24 Desorption air passage 25 Supply port 26 Discharge port A Indoor B Outdoor C Wall D Window

Claims (6)

An outdoor air conditioning unit having an outdoor refrigerant circuit, an indoor air conditioning unit having an indoor refrigerant circuit connected to the outdoor refrigerant circuit, and moisture from outside air adsorbed by the adsorbent are desorbed from the adsorbent and humidified. A humidifier unit that conveys air to the indoor air conditioning unit, wherein the indoor air conditioning unit and the humidifying unit are installed outdoors, and the humidifying unit is configured integrally with the indoor air conditioning unit. An air conditioner provided with a humidified air passage located below the indoor air conditioning unit and directly communicating the humid air conveyed from the humidifying unit to the indoor air passage of the indoor air conditioning unit. The humidifying unit adsorbs and desorbs moisture in the air, heating means for desorbing moisture from the moisture absorbing member, and humidified air containing moisture desorbed from the moisture absorbing member to the indoor air conditioning unit. Transporting means for transporting, adsorbing moisture of outdoor air to the moisture absorbing member, transporting a part of the indoor air that the indoor air conditioning unit sucks from the room to the humidifying unit, and heating by the heating means, 2. The air conditioner according to claim 1, wherein moisture is desorbed from the adsorbing member, a part of the room air is humidified, and the air is again conveyed into the room through the room air conditioning unit. 3. The air conditioner according to claim 1, wherein the moisture absorption member is a humidification rotor that is arranged and rotated so that an axial direction thereof is a substantially horizontal direction. 4. The air conditioner according to any one of claims 1 to 3, wherein an upper portion of the humidification rotor is disposed so as to be positioned above the lower side of the air outlet of the indoor air conditioning unit in a front view. . The humidifying unit includes a supply port to which a part of room air is supplied from the indoor air conditioning unit, and a discharge port that conveys humidified air to the indoor air conditioning unit, and is provided downstream of the air blowing means of the indoor air conditioning unit. The air conditioner according to any one of claims 1 to 4, wherein both the supply port and the discharge port are connected. The air conditioner according to any one of claims 1 to 5, wherein in the humidification unit, the discharge port is provided in the vicinity of the heating means.

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