JPH0228345Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a recessed indoor unit that can be installed in any location such as in the ceiling, in a ceiling bag, in a ground bag, or under the floor. It is.

(Prior art) Conventionally, recessed indoor units have been installed at
For example, special types are used depending on the installation location, such as in the ceiling, in the ceiling, in the basement, under the floor, etc. For example, there are ceiling cassette types and ceiling-embedded duct types for use in ceilings, and machines exclusively for ceiling and base bags.

(Problem to be solved by the invention) Therefore, in the past, it was necessary to prepare a dedicated machine depending on the implantation location, which increased the number of product models and made product management difficult.

The present invention was developed in view of these points, and its purpose is to integrate the types of recessed indoor units by making it possible to install them freely regardless of the installation location. It is in.

(Means for Solving the Problems) In order to achieve the above object, the solving means of the present invention, as shown in FIG. The mouth 7 is provided with an air outlet 10 on the other surface 1b, and a flow passage 4 is formed in the casing 1 to communicate the suction port 7 and the air outlet 10. A heat exchanger 2 and a fan 3 are arranged downstream thereof. A corner portion formed by the orthogonal surfaces 1a and 1b in the casing 1 includes a flow passage 4a on the upstream side of the heat exchanger 2.
A communication space S communicating with the flow path 4b on the downstream side of the fan 3 is formed, and a first entrance/exit 8 is formed on one surface 1a of the corner portion of the orthogonal surfaces 1a, 1b of the casing 1, and a first entrance/exit 8 is formed on the other surface 1b. 2
The entrances and exits 9 are provided adjacent to each other and in communication with the communication space S, respectively. The above communication space S
is provided with a switching member 11 that selectively switches communication between the heat exchanger upstream flow path 4a and the fan downstream flow path 4b of the communication space S.

(Function) As a result, when the casing 1 is installed embedded in the ceiling or under the floor as shown in FIG. The switching member is installed in the ceiling or under the floor, and a blind plate or the like is attached to the surface 1a of the casing 1 having the suction port 7 and the first entrance/exit port 8 so as to close the suction port 7 and the first entrance/exit port 8. 11 so that the communication space S communicates with the heat exchanger upstream flow path 4a, indoor air is sucked in from the second inlet/outlet 9, passes through the heat exchanger 2 and the fan 3, and is blown out from the outlet 10. do. In addition, when installing the casing 1 embedded in a top bag or a base bag, the casing 1 is
and the surface 1a having the second entrance/exit 9 and the air outlet 10 of the casing 1 is installed on the top and bottom so that the surface 1a having the first entrance 8 faces forward.
A blind plate or the like is attached to the surface 1b having the second inlet/outlet 9 and the air outlet 10 so as to close the second inlet/outlet 9 and the air outlet 10, and the switching member 11 is connected to the communication space S. By positioning the fan so as to communicate with the downstream flow path 4b, indoor air can be sucked in through the suction port 7, passed through the heat exchanger 2 and the fan 3, and then blown out from the first inlet/outlet 8.

(Effects of the invention) Therefore, according to the recessed indoor unit of the present invention, it can be recessed in any location such as in the ceiling, in the ceiling, in the basement, under the floor, etc. This makes it possible to integrate the models of recessed indoor units, which simplifies product management and is advantageous in practice.

(Example) Hereinafter, an example of the present invention will be described in detail based on the drawings.

1 and 2 show a recessed indoor unit A according to an embodiment of the present invention, in which 1
is a casing with a rectangular cross section, and one surface 1a of the adjacent orthogonal surfaces 1a and 1b of the casing 1
A suction port 7 is provided in the center of the casing 1, and a blowout port 10 is provided in the center of the other surface 1b, and a flow path 4 that communicates the suction port 7 and the blowout port 10 is provided in the casing 1. It is formed. The flow path 4 is provided with a heat exchanger 2 that is arranged upright at an angle and a cross-flow type fan 3 on the downstream side thereof. are connected to each other for cross-flow. At the top and bottom of the heat exchanger 2, there are drain pans 5, 5 and discharge ports 6, which can be installed upside down.
6 is provided.

A communication space S that communicates with the flow path 4a on the upstream side of the heat exchanger 2 and the flow path 4b on the downstream side of the fan 3 is formed in a corner portion formed by the orthogonal surfaces 1a and 1b in the casing 1. In addition, at the corner portion of the orthogonal surfaces 1a and 1b of the casing 1, a first entrance/exit 8 is adjacent to one surface 1a and a second entrance/exit 9 is adjacent to the other surface 1b, and each communicates with the communication space S. It is provided.

Further, in the communication space S, a switching member 11 made of a damper is rotatably provided to selectively switch communication between the heat exchanger upstream flow passage 4a and the fan downstream flow passage 4b of the communication space S. It is provided.

On the other hand, 12 is the orthogonal surface 1a of the casing 1,
1b, and the blind plate 12 is removably attached to the surfaces 1a, 1b via screws 13 so as to cover either one of the orthogonal surfaces 1a, 1b. It can be attached to orthogonal surfaces 1a, 1
The suction port 7 and the first entrance/exit port 8 on one side 1a of b.
Alternatively, the second inlet/outlet 9 and the outlet 10 on the other surface 1b are closed.

Further, 14 is the orthogonal surface 1a of the casing 1,
It is a decorative panel formed slightly larger than each surface of 1b, and the decorative panel 14 has the orthogonal surface 1
a suction port 7 and a first entrance/exit port 8 on each side of a and 1b;
In addition, suction and blowout grilles 15 and 16 are formed corresponding to the second inlet/outlet 9 and the outlet 10, and are removably attached to either of the orthogonal surfaces 1a, 1b via screws 17. It is something. Note that 18 is provided at the side end of the casing 1, and a means for fixing the casing 1 to the installation location (for example, in the case of installation in the ceiling as shown in FIG. 1, a hanging metal fitting 1 is provided)
9) is a fixing flange for fixing via.

Next, the installation method of the above-mentioned indoor unit A will be explained with reference to FIG.
The casing 1 is installed in the ceiling B with the surface 1b having the second entrance/exit 9 and the air outlet 10 facing downward. At that time, of the orthogonal surfaces 1a and 1b, the surface 1a having the suction port 7 and the first entrance/exit port 8
A blind plate 12 is attached to close the suction port 7 and the first inlet/outlet 8, and the switching member 11 is positioned so that the communication space S communicates with the heat exchanger upstream flow path 4a. Further, the decorative panel 14 is attached to the surface 1b having the second entrance/exit 9 and the air outlet 10, with suction and air outlet grilles 15, 16 corresponding to each other. As a result, when the fan 3 operates, the indoor air sucked in from below through the second inlet/outlet 9 undergoes heat exchange in the heat exchanger 2, and then is blown out downward from the outlet 10 via the fan 3. , consists of an indoor unit _A1 that is recessed in the ceiling.

In addition, when installing it embedded in the top bag C, among the adjacent orthogonal surfaces 1a and 1b of the casing 1, the surface 1a having the suction port 7 and the first entrance/exit port 8 is connected to the suction port 7.
The casing 1 is installed in the top bag C with the casing 1 facing forward so that the opening is on the upper side and the first opening 8 is on the lower side. A blind plate 12 is attached to the fan, and the switching member 11 is positioned so that the communication space S communicates with the flow path 4b on the downstream side of the fan.
Further, the decorative panel 14 is attached to the surface 1a having the above-mentioned suction port 7 and the first entrance/exit port 8 so as to correspond to suction and discharge grilles 15 and 16, respectively. As a result, indoor air sucked in from the front through the suction port 7 by the operation of the fan 3 is heat exchanged with the heat exchanger 2, and then is blown out from the first entrance/exit port 8 forward through the fan 3. A bag-embedded indoor unit _A2 is constructed.

Also, when installing it embedded in the base bag D, by reversing the top and bottom of the above-mentioned installation of the top bag C,
It consists of an indoor unit _A3 that is built into a ground bag.
In addition, when installing it embedded (storage) under the floor E,
By reversing the above-mentioned installation in the ceiling B, an indoor unit _A4 of the under-floor recessed type is constructed.

In addition, when storing the casing 1 on the floor, the casing 1 is stored in a louver 22 having a suction grill 20 corresponding to the suction port 7 on the front surface and a blowout grill 21 corresponding to the second entrance/exit port 9 on the top surface, and The inlet/outlet 8 and the outlet 10 are closed with a louver 22, and the communication space S between the switching member 11 and the flow passage 4b on the downstream side of the fan is
By positioning the indoor unit so as to communicate with the unit A5, a floor-standing indoor unit _A5 is constructed in which the indoor air sucked in through the suction port 7 from the front of the lower part is blown upward through the second inlet/outlet 9. In this case, the use of the blind plate 12 and the decorative panel 14 becomes unnecessary.

Therefore, as described above, the mounting positions of the blind plate 12 and the decorative panel 14 are changed with respect to the adjacent orthogonal surfaces 1a and 1b of the casing 1, and the switching member 1
By switching between 1 and 2, it can be installed freely in the ceiling B, top bag C, underground bag D, under the floor E, etc., and each type of recessed indoor unit A ₁
~ _A4 , it is possible to integrate the types of recessed indoor units into one, thereby reducing the number of product types and simplifying product management.

Incidentally, the cross-sectional shape of the casing 1 is not limited to the square shape as in the above embodiment, but may be simply rectangular, but a square shape is better in terms of unifying the sizes of the blind plate 12 and the decorative panel 14. It is preferable.

Further, as the switching member 11, instead of the damper as in the above embodiment, a connection between the communication space S to the fan downstream flow passage 4b or the heat exchanger upstream flow passage 4a of the communication space S may be provided on the back side of the decorative panel 14. A shielding plate is provided to block the communication to the fan downstream flow path 4b or the heat exchanger upstream flow path 4a of the communication space S according to the change in the mounting position of the decorative panel 14 with respect to the orthogonal surfaces 1a and 1b. The communication may be switched, and similar effects can be obtained.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, with FIG. 1 being an exploded perspective view showing the overall schematic configuration, FIG. 2 being a vertical side view, and FIG. 3 being explanatory views showing various installation examples. 1...Casing, 1a...One side, 1b...Other side, 2
...heat exchanger, 3...fan, 4...flow path, 4a...heat exchanger upstream flow path, 4b...fan downstream flow path, 7...suction port, 8...first inlet/outlet, 9...second inlet/outlet, 10 ...Air outlet, 11...Switching member, 12...Blind plate, S...Communication space.

Claims (1)

[Claims for Utility Model Registration] Adjacent orthogonal surfaces 1 of a casing 1 having a rectangular cross section
A suction port 7 is provided on one surface 1a of the casing 1b, and a blowout port 10 is provided on the other surface 1b, and a flow path 4 is formed in the casing 1 to communicate the suction port 7 and the blowout port 10. A heat exchanger 2 and a fan 3 are disposed downstream of the heat exchanger 2 in the flow path 4, and the heat exchanger A communication space S is formed which communicates with the flow path 4a on the upstream side of 2 and the flow path 4b on the downstream side of the fan 3, and a first entrance/exit port 8 is formed on one surface 1a of the corner portion of the orthogonal surfaces 1a and 1b of the casing 1. However, on the other surface 1b, second entrances and exits 9 are provided adjacent to each other and in communication with the communication space S, and the communication space S includes a flow path upstream of the heat exchanger in the communication space S. passage 4a and fan downstream flow passage 4b
A recessed indoor unit characterized by being provided with a switching member 11 that selectively switches communication with the indoor unit.