JPH01273960A - Integral type or multi-chamber type air conditioner - Google Patents

Abstract

PURPOSE:To increment only an indoor unit as required and enable other rooms to be air conditioned by a method wherein a pipe connection part capable of being connected to the indoor unit separately arranged in order to air condition other rooms is provided in a freezing cycle. CONSTITUTION:A major freezing cycle of an integral type air conditioner is constituted by a compressor 14, an outdoor heat exchanger 12, a major opening or closing valve 18, a major pressure reducing unit 22, a heat exchanger 3 within a main room and an accumulator 32 which are connected in a ring-like manner. Each of branch circuits for indoor units A and B is constructed such that its high pressure side connects between an outdoor heat exchanger 12 and the major opening or closing valve 18 and with a high pressure connection unit 7a and through auxiliary opening or closing valves 19, 20 and auxiliary pressure reducing units 23, 24. Its low pressure side is constructed such that it is connected between the major indoor heat exchanger 3 and the compressor 14 and with a low pressure connecting unit 7b. The indoor units A and B constitute a major freezing cycle and a freezing cycle by connecting a heat exchanger 16 to a high pressure connection side 7a and a low pressure connecting side 7b through a pipes 5 and 6.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an air conditioner to which a plurality of indoor units can be connected to an integrated air conditioner installed in a window, wall, or the like.

Conventional technology Conventionally, an air conditioner that adjusts the air in multiple rooms has a 7th
It was constructed as shown in the figure.

That is, in the same figure, 101 is an outdoor unit, 102
．． Reference numeral 103 indicates an indoor unit, and reference numerals 104 and 105 indicate refrigerant pipes connecting the indoor units 102 and 103 and the outdoor unit 101, and connecting pipe bodies in which connecting wires are molded. The outdoor unit 101 is connected by a connecting refrigerant pipe led through an L'v hole drilled in the wall, and is connected to a balcony,
Or placed outdoors on the floor.

This configuration is a so-called separate type multi-air conditioner.

Further, US Pat. No. 4,641,503 discloses an air conditioner having the configuration shown in FIGS. 8 and 9.

In the figure, 201 is a main body, a cylindrical outer box 202,
A substrate 203, a compressor 20 placed on this substrate 203
4. Connection with a heat source side unit 206 equipped with a heat source side heat exchanger (not shown) and a blower 205, the compressor 204, a partition plate 207 that shields the heat source side unit 206, and a plurality of indoor units 301 and 302. Part a-b-c-d
-e, tg, h, and an electrical equipment box 208 in which an electric control circuit is built-in.

301a, 3o1b, 302a, and 302b are connecting portions provided on the main body 201 and indoor units 301 and 302, respectively, and 210m, 210b, 211a, and 211b are connecting portions 1 and 301a, and 301b, respectively.
, piping that connects the connecting portion C and 302a, and the connecting portion d and 302b, and passes through the notch 212 provided in the outer box 202.

The main body 201 has a zone 213 shown in FIG.
The indoor units 301 and 302 are mounted on the walls of the room.

Problems to be Solved by the Invention However, the above conventional configuration
01 is required, so especially in high-rise residences, a balcony is required as the installation location.

Therefore, restrictions on installation are limited, and it cannot be installed in high-rise houses without balconies.

In addition, in the latter conventional configuration, the main body 101 can be installed through a wall or a window, so the above problem can be solved, but the main body 101 protruding into the room cannot be installed inside the room. There is no air conditioning function, and one of the indoor units (301) must be installed in parallel.

This requires construction to protrude the main body 101 and installation of the indoor unit 301 in order to perform indoor air conditioning, resulting in large-scale construction.

Further, since the main body 101 simply protrudes into the room and does not air condition the room, it has a strong negative effect on the aesthetic appearance of the room.

In view of the above-mentioned conventional problems, the present invention provides all units constituting a multi-room air conditioner, that is, the main body and the indoor unit, with the function of air-conditioning the room, while easing the constraints on the installation location of the units. The purpose is to enable rational air conditioning of multiple rooms.

Means for Solving the Problems The means of the present invention for solving the above problems is an integrated air conditioner that performs indoor air conditioning and is equipped with a refrigeration cycle system and a blower device. It is equipped with a piping connection part that allows connection to a separately provided indoor unit for air conditioning.

Another aspect of the present invention is that, in the above structure, a pipe connection part is provided on a side surface of the integrated air conditioner, and a cover is further provided to cover the pipe connection part.

Furthermore, another means of the present invention is to branch the piping of an indoor unit installed in another room into the refrigeration cycle of an integrated air conditioner that performs indoor air conditioning and is equipped with a refrigeration cycle system and a blower. It was established.

Furthermore, another means of the present invention is to branch the piping of an indoor unit installed in another room into the refrigeration cycle of an integrated air conditioner that performs indoor air conditioning and is equipped with a refrigeration cycle system and a blower device. Further, an on-off valve is provided in each of the refrigeration cycle and the branch path.

Function By using the above means, not only can the integrated air conditioner installed indoors be used to air-condition the room, but it can also be arbitrarily connected to an indoor unit that air-conditions other rooms as needed.

In addition, the interior aesthetics of the room can be improved by using a cover that covers the pipe connections.

Furthermore, by branching and connecting an indoor unit that air-conditions other rooms to the refrigeration cycle of an integrated air conditioner installed indoors, it is possible to air-condition multiple rooms, and there is no need for a dedicated space for installing outdoor units. This allows for rational installation.

Furthermore, by providing on-off valves in the refrigeration cycle and branch paths of the integrated air conditioner, it is possible to select which rooms are to be air-conditioned.

Embodiments Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 6 of the attached drawings.
This will be explained with reference to the diagram.

First, the overall system configuration will be explained with reference to FIG.

In the figure, A and Day are indoor units installed in different rooms, and C is an integrated air conditioner.
The refrigerant pipes 5 and 6 of A-8 are branched and connected.

Next, the specific structure of the integrated air conditioner C will be described with reference to FIGS. 2 to 4, including FIG. 1.

In the figure, reference numeral 1 denotes an integrated air conditioner main body, which is composed of a cylindrical outer box 1a and a board 1b housed in the outer box 1a. 1G is formed, and an outdoor air outlet (back opening) td is provided on the back surface of the outer box 1a.

A partition plate 1C is provided on the substrate 1b to partition the inside of the integrated air conditioner into an outdoor side and an indoor side.

On the outdoor side, a compressor 14, an outdoor heat exchanger 12, a propeller fan 11 forming an outdoor ventilation circuit from the outdoor suction port 1G to the outdoor air outlet 1d, an air guider 13 of this propeller fan 11, Fan motors 15 are respectively attached to the partition plates 1e via metal fittings 15a.

Further, a main indoor heat exchanger S and a centrifugal fan 10 driven by the fan motor 15 are provided on the indoor side, and these constitute an indoor ventilation circuit together with the partition plate 1e, the top plate 10a, etc. ing. Reference numeral 4 denotes a left-right wind direction changing blade provided on the blow-off portion 4a side of the indoor ventilation circuit. Reference numeral 7 denotes a piping connection part provided on the side surface of the outlet part of the partition plate 1e, in which a high-pressure side connector 7a and a low-pressure side connector 7 are connected.
Two pairs of b are provided. Reference numeral 9 denotes an electrical equipment box provided at the bottom of the air outlet part 4a on the indoor side, which houses electrical circuit parts for controlling operation when the integrated air conditioner C and the plurality of indoor units 1-A-8 are connected. There is. Reference numeral 9a denotes a connector stand that serves as a power source for the indoor unit (indoor unit) A-8, to which electric wires are connected. Here, a cutout is provided on the indoor side of the outer box 1a so that the pipe connection part 7 is exposed, and one edge of the cutout includes the connector stand 9a and covers the pipe connection part 7. A fixing plate 1f to which the cover 8 is screwed is provided. Further, at the upper end of the cover 8, there is provided a refrigerant pipe 5.
6 and a notch 8a through which the electric wire passes.

2 is a front grill removably provided on the indoor side;
Indoor suction 1-, facing the main indoor heat exchanger 3,
] 2a, and an indoor air outlet 2b facing the air outlet part 4a. The indoor blooming outlet 2b is provided with a vertical wind direction changing blade 2C.

The indoor unit A/day may have the configuration of a well-known indoor unit of a separate type air conditioner, and as shown in Figure 4, an inlet and an outlet E are provided on the front, and a heat exchanger is installed inside. 16
and a blower 17 are provided.

Next, the refrigeration cycle having the system configuration shown in FIG. 1 will be explained with reference to FIG. 5. Here, the same parts as in FIGS. 1 to 4 will be described with the same reference numerals.

The main refrigeration cycle of the one-piece air conditioner C includes a compressor 14,
It is constructed by connecting an outdoor heat exchanger 12, a main on-off valve 18, a main pressure reducer 22, a main indoor heat exchanger 3, and an accumulator 32 in an annular manner.

Each branch circuit of indoor 22-1-A-8 is connected between the outdoor heat exchanger 12 and the main on-off valve 18 on the high-pressure side, the high-pressure side connector 7a, and the auxiliary on-off valves 19 and 20. Pressure reducer 23・
24, and the low pressure side is
It is constructed by connecting the main indoor heat exchanger 3 and the compressor 14 to the low pressure side connector 7b. A propeller fan 11 and a centrifugal fan 10 are positioned as shown in the figure.

In addition, indoor unit) A-8 connects the heat exchanger 16 to the piping 5.
By connecting with the high-pressure side connection part 7a and the low-pressure side connection part 7b via 6, a refrigeration cycle is constructed together with the main refrigeration cycle. Note that 17a indicates a fan motor that drives the blower 17.

An installation example of the above-mentioned integrated air conditioner C1 (indoor 22 SO) A-8 is shown in FIG.

In this installation example, the integrated air conditioner C is installed in a room C such as a living room, the indoor unit A is installed in a room A such as a bedroom, and the indoor unit B is installed in a room B such as a child's room. , In order to cool room C in the structure L, the main on-off valve 18 is opened, the auxiliary on-off valves 19 and 20 are closed, and the compressor 14 is operated.

Therefore, the refrigerant is transferred to the compressor 14 and the outdoor heat exchanger 12.
, main on-off valve 18, main pressure reducer 22, main indoor heat exchanger 3,
The air circulates through the accumulator 32 and compressor 14, making it possible to cool room C.

In addition, when cooling rooms A and B at the same time, main on-off valve 1
8, open the auxiliary on-off valves 19 and 20, and open the compressor 14.
drive.

Therefore, the refrigerant is transferred to the compressor 14 and the outdoor heat exchanger 12.
flow, and the auxiliary on-off valves 19 and 20 and the auxiliary pressure reducer 2 are activated at the branch part.
3 and 24, flows through the heat exchanger 16 of each indoor unit A-El, and flows through the accumulator 32 and compressor 14.
The air circulates, allowing room A and room B to be cooled.

It goes without saying that the combination of A-C rooms to be cooled is not limited to the above case, and can be obtained arbitrarily by opening and closing the main on-off valve 18 and the auxiliary on-off valves 19 and 20.
, Therefore, the integrated air conditioner C is
Can be used alone without connecting B.

By connecting the required number of indoor units A-B to the piping connection part 7 of this integrated air conditioner C, it is possible to perform air conditioning in the same manner as before. In addition, it can also air condition other rooms.

Note that although the case of cooling has been described in this embodiment, the present invention can be similarly implemented in a heat pump type integrated air conditioner capable of heating and cooling, and does not depart from the gist of the present invention.

Furthermore, the number of indoor units that can be connected and added can be increased or decreased to an allowable number based on the design.

Effects of the Invention As is clear from the above embodiments, the integrated air conditioner of the present invention can air-condition other rooms by adding an additional indoor unit as necessary.

Therefore, the space required for expansion is only the space for installing the indoor unit, and the installation conditions associated with expansion are also eased.

In addition, the multi-room air conditioner of the present invention has a structure in which a separate indoor unit cycle is branched and connected to the main refrigeration cycle of the integrated air conditioner.
Since no installation space is required for an outdoor unit, and this integrated air conditioner also functions as an outdoor unit, it is a reasonable installation for multi-room air conditioners and eases the constraints of the house in which it is installed. be able to.

[Brief explanation of the drawing]

Fig. 1 is a schematic system configuration diagram of an air conditioner according to an embodiment of the present invention and a multi-room type, Fig. 2 is an exploded perspective view of the same type air conditioner, and Fig. 3 is the same air conditioner. Fig. 4 is a cross-sectional view of the indoor unit used in the multi-room air conditioner, Fig. 5 is a refrigeration cycle diagram of the multi-room air conditioner, and Fig. 6 is the same multi-room air conditioner. An indoor layout diagram showing an installation example of a room air conditioner, Fig. 7 is a system configuration diagram of a multi-room air conditioner showing a conventional example, and Fig. 8 is a system configuration diagram of an air conditioner showing a different conventional example. , FIG. 9 is a perspective view showing the configuration of the main body of the air conditioner. A: Indoor unit, B: Indoor unit,
C...Integrated air conditioner, 1...Integrated air conditioner body, 1a...Outer box, 1b...
・Board, 1c...Outdoor side suction port, 1d...
Outdoor air outlet, 1e--Partition plate, 2a... Indoor air intake, 2b... Indoor air outlet, 3...
・Main indoor heat exchanger, 5, 6... Refrigerant piping, 7.
...Piping connection, 7a...High pressure side connection, 7b...Low pressure side connection, 8...Cover, 10...Centrifugal Fan, 11...Propeller fan, 12...Outdoor heat exchanger, 14...
... Compressor, 16 ... Heat exchanger, 17.
...Blower, 18...Main opening/closing valve, 19.
20... Auxiliary on-off valve, 22... Main pressure reducer, 23, 24... Auxiliary pressure reducer. Name of agent: Patent attorney Toshio Nakao and one other person Za
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Claims (4)

[Claims] (1) The air conditioner main body is composed of a cylindrical outer box and a board removably housed in the outer box, and the inside of the air conditioner main body is shown on the indoor side and the outdoor side. A partition plate is provided for partitioning the outdoor heat exchanger, and the outdoor side has a compressor, an outdoor heat exchanger, an outdoor fan, an outdoor suction port and an outdoor air outlet opening to the outdoor side, and the outdoor side heat exchanger An outdoor ventilation circuit with a built-in outdoor fan is installed.
Further, the indoor side has a main indoor heat exchanger, an indoor fan, an indoor suction port and an indoor air outlet that open to the indoor side, and the main indoor heat exchanger and the indoor fan are built in. In the integrated air conditioner, the integrated air conditioner has a main refrigeration cycle in which the compressor, the outdoor heat exchanger, the main pressure reducer, and the main indoor heat exchanger are sequentially connected in an annular manner. The cycle is provided with a branch circuit through which the refrigerant in the main refrigeration cycle is divided, and one end of this branch circuit is connected between the outdoor heat exchanger and the main pressure reducer, and the other end is connected to a high pressure side piping fitting. a high-pressure side branch pipe provided, and a low-pressure side branch pipe whose one end is connected between the indoor heat exchanger and the compressor and whose other end is provided with a low-pressure side piping connector, An integrated air conditioner in which a main on-off valve is provided between the main pressure reducer and a high-pressure side branch pipe branch point, and a series circuit consisting of an auxiliary on-off valve and an auxiliary pressure reducer is provided on the high-pressure side branch pipe. (2) Attach the high-pressure side piping fittings and the low-pressure side piping fittings to the side of the air conditioner body, and attach a cover to the side of the air conditioner body to cover the high-pressure side piping fittings and the low-pressure side piping fittings. The integrated air conditioner according to claim 1, wherein the integrated air conditioner is detachably provided. (3) In an integrated air conditioner whose interior is partitioned into an outdoor side and an indoor side by a partition plate, a compressor,
An outdoor ventilation circuit is provided, which has an outdoor heat exchanger, an outdoor fan, and an outdoor air inlet and an outdoor air outlet that open to the outdoor side, and incorporates the outdoor heat exchanger and the outdoor fan, and The indoor side has a main indoor heat exchanger, an indoor fan, an indoor suction port and an indoor air outlet that open to the indoor side, and the main indoor heat exchanger and the indoor fan are built-in. A main air conditioner is provided with an indoor ventilation circuit, and further includes a main refrigeration cycle in which the compressor, the outdoor heat exchanger, the main pressure reducer, and the main indoor heat exchanger are sequentially connected in an annular manner; An indoor unit installed in a separate room from the main air conditioner is provided, and this indoor unit is comprised of a main body having an inlet and an outlet, and a ventilation circuit provided in the main body and communicating with the inlet and outlet. , consisting of a heat exchanger and a blower provided in this ventilation circuit, and one end of the heat exchanger is connected between the outdoor heat exchanger and the main pressure reducer via a high pressure side piping having a pressure reducer. and the other end is connected between the indoor heat exchanger and the compressor via a low-pressure side pipe. (4) A main on-off valve is provided between the main pressure reducer and the high-pressure side pipe connection in the main refrigeration cycle, and an auxiliary on-off valve is provided between the high-pressure side pipe and the pressure reducer on the high-pressure side pipe. The multi-room air conditioner according to claim 3.