JPH03168542A - Air-conditioner - Google Patents

Abstract

PURPOSE:To save space for the installation and facilitate the work such as maintenance by connecting a ventilating unit directly to a branch chamber for the intake. CONSTITUTION:Ducts 11 connected to a cooling-heating air conditioner 4 are provided at an intermediate point with a polygonal branch chamber 31 having a specific cubic capacity and composed of an intake branch chamber 32 a delivery branch chamber 33 in a double structure. A ventilating unit 8 having an inlet for outdoor air is connected integrally with the intake branch chamber 32 of the branch chamber 31. Not only is this constitution advantageous in ease in work and economy in cost in installing the ventilating unit 8 itself but the concentration of the equipment at one point lends itself markedly to improvement of the work involved in installation, maintenance and inspection, and the like of the entire equipment.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an air conditioner, and particularly to an air conditioner for heating and cooling a plurality of individual spaces.

[Prior Art] Conventionally, air conditioners for heating and cooling a plurality of individual spaces have been disclosed in Utility Model Publication No. 81-22201 and Utility Model Number 132-
No. 14519, Special Publication No. 50-3?45f3, No. 14519, No. 45f3
There are those disclosed in Japanese Patent Application Laid-open No. 0-91937, Japanese Patent Application Laid-Open No. 57-186029, and Japanese Patent Application Laid-Open No. 62-37833.

Furthermore, the air conditioners disclosed in Utility Model Application No. 83-113409 and Japanese Patent Application No. 1-51950 by the present applicant are capable of supplying as constant a flow of conditioned air as possible using a simple A structure, and also provide air conditioners for each individual space. The aim is to prevent conversational sounds or noise from being transmitted into each room through the ducts.

The basic configuration of the air conditioner developed by the present applicant will be outlined based on FIG. 3.

The air conditioner 1 includes a heat pump 2, a heating/cooling air conditioner 4 connected to the heat bomb 2 via refrigerant and hot water piping 3, and a blower 5 for blowing conditioned air.
Air conditioning, heating, and air conditioning 4'! 4 is connected to an intake port 7 and a ventilation unit 8 for introducing outside air through an intake duct 6. This ventilation unit 8 is provided with a damper 9 to control the intake of outside air from the outside air inlet 10.Furthermore, the heating and cooling air conditioner 4 is provided with a polygonal shape (for example, hexagonal shape or other arbitrary shape) through a main outlet duct 11. A branch chamber 12 having a polygonal shape) is connected thereto. A plurality of branch ducts 13 are connected from this branch chamber 12 to each room (not shown). An outlet 14 is attached to each branch duct 13.

Note that the heating/cooling air conditioner 4, the branch chamber 12, etc. are suspended from the ceiling or the like using hanging members, wiring, etc. 15. Further, the branch chamber l2 may be provided with a chamber interior inspection port 16 at its bottom, and the interior thereof can be inspected by opening and closing the inspection port opening/closing lower cover 17.

A damper 18 that can be opened and closed is provided at the attachment portion of each of the branch ducts 13 to the branch chamber 12, and one unit controller is connected to each of the dampers 18 for various controls such as adjusting the degree of opening of these dampers 18 and adjusting the temperature. It is set up in the room. Note that a main controller 20 is provided for controlling the entire cooling/heating air conditioner 4 .

Furthermore, a humidifier 21 may be provided to adjust the humidity in the air-conditioned space. Note that this humidifier 21 has an external pipe for drainage, that is, a drain port 22. In addition, the code|symbol 23 shows the drain hose of the cold tofu and hot water piping 3.

In the air conditioner i with such a configuration, the suction port 7
Since it is directly connected to the air conditioning air conditioner 4, it is necessary to install it separately, which poses problems in terms of installation space, cost, and workability.

To solve this problem, the branch chamber 12 was made to have a double structure, and the main suction port was integrated into the suction branch chamber (see the above-mentioned patent application No. 1-5195).
(See No. 0).

However, since the ventilation unit 8 was also connected to the heating and cooling air conditioner 4, this ventilation unit 8
The problems of installation space, workability, and cost 1. that require separate installation of the 1.

Furthermore, in a normal heating system, the humidifier 21 is operated for humidity 'A', but it is preferable to install the humidifier 21 separately from the viewpoint of installation space, workability, and cost. isn't it. Furthermore, conventionally, the 21 humidifying rod system has a problem in that it requires not only the installation of a drain hose 22 but also a drain bomb in order to cope with the 11-bar flow in the event of a failure.

[Problems to be Solved by the Invention] The present invention has been made in view of the above-mentioned problems, and the first invention is that a ventilation unit having an outside air inlet can be installed in a space-saving and cost-saving manner. Our goal is to provide an air conditioner that is easy to install, easy to install, and easy to maintain and inspect. ! There will be one problem. The second invention also provides an air conditioner with a structure that does not require separate installation space for a humidifier, realizes cost reduction, and takes measures against overflow in the event of a failure. The task is to do so.

[A Thousand Steps to Solve the Problem] That is, the first invention is an air conditioner that includes a heating and cooling air conditioner, a blower that blows conditioned air, and a duct that sends out the conditioned air to a plurality of individual spaces. A polygonal branch channel/<- having a predetermined volume is provided in the middle of the duct connected to the above-mentioned air conditioning/heating air conditioner, and this branch channel/ku has a double structure with a branch chamber for suction and a branch chamber for blowout. This air conditioner is characterized in that a ventilation unit having an outside air inlet is connected to this suction branch chamber.

A second aspect of the invention is an air conditioner, characterized in that a humidifier is provided in the branch chamber of the branch chamber configured as a double structure including the branch chamber for suction and the branch chamber for discharge.

During maintenance and inspection of this humidifier, check the opening/closing plate of the main suction port of the suction branch chamber, and remove the opening/closing plate of the inlet of the outlet branch chamber, which is formed on the partition wall from the outlet branch chamber. The container and the humidifier drain van can be made removable together with this opening/closing plate.

[Function] In the air conditioner according to the first aspect of the invention, the ventilation unit itself having the outside air inlet is integrated into the suction branch chamber of the branch chamber, so that it can be used together with other members such as the suction branch duct and the main suction port. Since the ventilation unit will be installed centrally in the branch chamber, the installation workability and cost of the ventilation unit itself will be reduced.
Not only can L be improved, but also the workability of overall installation, maintenance and inspection, etc. can be greatly improved by concentrating the structure in one place.

Furthermore, in the air conditioner according to the second aspect of the invention, the humidifier is housed in the outlet branch chamber of the branch chamber, so space can be saved. Furthermore, in order to prevent overflow when a humidifier malfunctions, which has been a problem in the past, the pressure difference between the inside of the air conditioner and the outlet chamber is used to send overflow water to the air conditioner through the drainage hose. This can be done using the drain mechanism installed in this air conditioning/heating air yJ machine. Therefore, there is no need to separately install a drain bomb or a drain hose for the humidifier.

[Example] Next, an air conditioner 30 according to an example of the present invention will be described.
This will be explained based on the figure and FIG.

However, the same parts as in FIG. 3 are given the same reference numerals, and detailed description thereof will be omitted.

FIG. 1 is a perspective view of a portion of a branch chamber 31 corresponding to the branch chamber 12 of the air conditioner 30, viewed from the bottom, and FIG. 2 is a vertical cross-sectional view of a main part of the branch chamber 31. The branch chamber 31 is a suction branch chamber 32.
and a branch chamber 33 for blowing out. This suction branch chamber 32
By connecting the main suction duct 34 corresponding to the intake duct 6 to the main suction duct 34 and the main blowout duct l-11 to the blowout branch chamber 33, the branch chamber 31
and the heating/cooling air conditioner 4 are connected. A suction branch duct 35 from each room is connected to the suction branch chamber 32, and suction can be taken from the suction port 36 thereof. Similarly, the ventilation suction duct 37 of the ventilation unit 8 is connected to this suction branch chamber 32, and the outside air introduction port 10 is connected thereto.

The branch chamber 33 for blowing is connected to the branch duct 1.13 for blowing out conditioned air to each room.

In particular, as shown in FIG. 52, a partition wall 38 is formed in the branch chamber 31 between the suction branch chamber 32 and the blow-off branch chamber 33.

Further, a main suction port 39 which also serves as the chamber interior inspection port 16 is formed at the center of the bottom surface of the suction branch chamber 32, and an opening/closing plate 40 is provided on the main suction port 39.

This opening/closing plate 40 includes a suction grill 41 and a filter 4.
This will be constructed from 2 onwards.

Further, an opening/closing vibe unit 43 is installed at the connection part of the suction branch duct 35 to the suction branch chamber 32, the connection part of the ventilation suction duct 37, and the connection part of the branch duct 13 to the blow-off branch chamber 33. It is connected via This opening/closing pipe unit 43 may be based on the patent application "Pipe unit for outlet of air conditioner" filed by the present applicant on May 3, 1999, but any other opening/closing mechanism may be used. shall be installed. In this opening/closing pipe unit 43, a damper 45 is opened and closed by a motor actuator 44. At the center of the partition wall 38 of the blowout branch chamber 33, an opening 46 is formed in the blowout branch chamber, and an opening/closing plate 47 is attached.

Further, the humidifier 2l is attached to the opening/closing plate 47, and a humidifier is installed between the opening/closing plate 47 and the humidifier 2l.
A drain pan 48 for overflow is fixed. Further, this humidifier overflow drain pan 48 is connected to an evaporator drain pan 50 in the air-conditioning/air conditioner 4 via a drain hose 49. Incidentally, this drain pan 50 for the evaporator is provided with a drain pipe 51. In the air conditioner 30 having such a structure, circulating air can be sucked in from each room through the suction port 36 or the suction branch duct 35 and the main suction port 39, and there is also a ventilation suction port for sucking outside air for ventilation. Since the duct 37 is also connected to the suction branch chamber 32 of the branch chamber 31, the entire air suction system is concentrated in the branch chamber 31, which is advantageous not only during installation work but also during maintenance and inspection. Further, by removing the opening/closing plate 47 of the partition wall 38, the inside of the blowing branch chamber 33 can be inspected, and the humidifier 21 and the humidifier bar flow drain pan 48 can be taken out together with this opening/closing plate 47. This makes inspection easy.

In addition, when actually operating the humidifier 21, the humidifier 21
The water that has condensed on the humidifier, or the water that overflows when the humidifier malfunctions, is received by the humidifier overflow drain pan 48. Therefore, the air conditioner 4 sucks air from the main suction duct 34 and discharges the conditioned air in the direction of the branch chamber 33 through the main outlet duct 11, so that the air pressure inside the air conditioner 4 is lower than the air pressure inside the air conditioner 4. Since the air pressure is lower than the air pressure inside the blowout branch chamber 33, the moisture W accumulated in the humidifier overflow drain pan 48 flows from the humidifier overflow drain pan 48 through the drain hose 49 and reaches the evaporator drain pan 50 due to this pressure difference. It turns out. Since this evaporator drain van 50 is provided with a drain vibe 5l, water can be drained from there.

[Effects of the Invention] As explained above, according to the present invention, since the ventilation unit is directly connected to the suction branch chamber, the installation space and workability can be improved compared to the conventional method. Furthermore, since the humidifier is built into the outlet branch chamber, there is no need to separately provide a drain pump, drain hose, etc. for the humidifier.

Overall, necessary functions such as ventilation and humidity control functions can be integrated into a portion of the branch chamber, so space can be saved, and installation, maintenance and inspection work can be made more efficient and costs can be reduced.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a branch chamber 31 portion of an air conditioner 30 according to an embodiment of the present invention viewed from the bottom, FIG. 1 is a perspective view of the basic structure of an air conditioner 1. FIG. 1. ．． ．． ．． ．． Air conditioner. Heat bomb. Refrigerant and hot water piping, heating and cooling air conditioners. Blower. Intake duct. Suction port. Ventilation unit, damper. Outside air inlet. Main air duct. Branch chamber, branch duct. Air outlet. Hanging members and wiring, etc. Inspection port inside the chamber. Lower cover for opening and closing the inspection port. Damper. Unit controller. Main controller. Humidifier 2 2. 2 3. 3 0 3 1. 3 2, 3 3. 3 4. 3 5. 3 6, 3 7. 3 8. 3 9 , 4 0 4l 4 2 . 4 3. 4 4. 4 5. 4 6. Drain hose (outside piping for drain drainage) ． Drain hose for refrigerant and hot water piping 3. Air conditioner. Branch chamber. Branch chamber for suction. Branch chamber for blowing. Main suction duct｝・Suction branch duct. Suction port. Ventilation suction duct l. Bulkhead. Main suction port. Opening/closing board. Suction grill, filter, opening/closing pipe unit. Motor actuator. Dunbar. Inspection port in branch chamber for blowing 4 7 4 8 4 9 50 5l W. ．． Open/close plate humidifier overflow drain van. Drain hose, xy<trenband drain pipe for holator. Moisture accumulated in the humidifier overflow drain van 48

Claims (2)

[Claims] (1) An air conditioner comprising a heating and cooling air conditioner, a blower that blows conditioned air, and a duct that sends the conditioned air to a plurality of individual spaces, the duct having a predetermined volume in the middle of the duct connected to the heating and cooling air conditioner. A polygonal branch chamber is provided, and this branch chamber is configured as a double structure consisting of a suction branch chamber and a blow-off branch chamber, and a ventilation unit having an outside air inlet is connected to this suction branch chamber. An air conditioner featuring: (2) An air conditioner comprising a heating and cooling air conditioner, a blower that blows conditioned air, and a duct that sends the conditioned air to a plurality of individual spaces, the duct having a predetermined volume in the middle of the duct connected to the heating and cooling air conditioner. A polygonal branch chamber having a polygonal shape, the branch chamber having a double structure including a suction branch chamber and a blowout branch chamber, and a humidifier provided in the blowout branch chamber. harmonization device.