JPH04120534U - Indoor unit of indoor/outdoor separated air conditioner - Google Patents

Abstract

(57) [Summary] [Purpose] The present invention provides an indoor unit of an indoor/outdoor separate type air conditioner that can contribute to alleviating indoor temperature unevenness and also contribute to improving the overall furnishing balance in the room. [Structure] The indoor unit S includes a casing 11 that is attached to the ceiling R and formed thin and flat in the vertical direction;
1, an air outlet 13 formed in the wall of the casing 11, and an air outlet 12 formed in the lower wall of the casing 11. 13
An electric fan 14 that forcibly exhausts air through the housing 11
It includes a heat exchanger 15 provided between an air inlet 12 and an air outlet 13, and lighting fixtures 16a and 16b for indoor lighting supported by the casing 11.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to an indoor unit for a separate indoor/outdoor air conditioner, and in particular, to an indoor unit for a ceiling-mounted indoor air conditioner. Regarding machines.

0002

[Conventional technology]

Some air conditioners have separate parts that are located indoors and parts that are located outdoors. There is also a so-called indoor/outdoor separated type. This indoor/outdoor separated air conditioner Because all you need to do is connect the indoor unit and outdoor unit with piping and wiring, the building can be completed. It can be easily installed even after the installation has been completed, and it also prevents noise from the outdoor unit from entering the room. It has the advantage of being able to prevent

0003 By the way, such indoor/outdoor separated type air conditioners generally have a structure as shown in Fig. 11. In other words, the indoor unit X is fixed to the inner surface of the wall Y, using a so-called wall-mounting method. The indoor unit X has a heat exchanger 2 in the housing 1, as shown in FIGS. , an electric fan 3, a rectifying plate 4, a casing 5 and a drain pan 6, A fan 3 draws indoor air from an inlet 7 provided on the front wall of the housing 1 to a filter 8. This air is brought into contact with the heat exchanger 2 and then placed at the lower part of the front wall of the housing 1. It is configured to blow out diagonally downward through the provided blow-off port 9.

0004 However, the indoor unit configured as above has the following problems. there were. In other words, since it uses a wall-mounting method, it is inevitably installed in the corner of the room. You will be kicked. For this reason, it is inevitable that temperature fluctuations will occur indoors, and residents will There was a problem that made me feel uncomfortable. In addition, since it is wall-mounted, it can be used to decorate the entire room. There were also problems that worsened the balance.

[0005]

[Problem that the idea aims to solve]

Therefore, this invention can contribute to alleviating indoor temperature unevenness and improve the overall furnishings of the room. To provide an indoor unit of an indoor/outdoor separate type air conditioner that can also contribute to improving the balance. It is an object.

[0006]

[Means to solve the problem]

In order to achieve the above purpose, the indoor unit according to the present invention is installed on the ceiling. Both have a casing that is thin and flat in the vertical direction, and a void formed on the bottom wall of this casing. an air inlet, an air outlet formed in the wall of the casing, and an air outlet formed in the wall of the casing; The air sucked in through the air intake port is forcibly exhausted through the air outlet. an electric fan provided between the air intake port and the air outlet within the housing; and a lighting fixture for indoor lighting supported by the housing.

[0007]

[Effect]

The indoor unit has a ceiling-mounted structure, so it can be installed in the center of the ceiling. It is easiest to balance the furniture in the room, and it is also easier to alleviate uneven temperature in the room. It is possible to install it in any position. Moreover, the indoor unit provides lighting for the room. Since lighting equipment is installed, when the indoor unit and lighting equipment are installed separately on the ceiling. The balance of furniture in the room will not deteriorate like this.

[0008]

【Example】

Examples will be described below with reference to the drawings.

[0009] Figure 1 is a cross-sectional view of an indoor unit according to an embodiment of the present invention when it is actually installed indoors. It is shown. In other words, R in the figure indicates the ceiling, and S is attached to the bottom surface of the ceiling R. This shows the indoor unit that has been installed.

0010 The indoor unit S can be roughly divided into a flat type that is thin in the vertical direction, and whose outer diameter is, for example, a disk shape. The formed casing 11 and the air suction port 12 formed in the center of the lower wall of this casing 11 , a plurality of air outlets 13 formed along the circumferential direction on the side wall of the casing 11 , and the casing 1 1 to face the suction port 12, and suck indoor air through the suction port 12. and blows it out in a radial direction centered on the suction port 12 through the blowout port 13. For example, there is a centrifugal electric fan 14 and a diagram between the electric fan 14 and the air outlet 13. As shown in FIG. 2, the heat exchanger 15 is arranged in an annular manner, and the heat exchanger 15 is housed in the housing 11. A lighting fixture provided for indoor lighting, such as an annular fluorescent lamp 16a. , 16b.

[0011] The housing 11 has a lower wall 11a made of a transparent member such as acrylic resin. The suction port 12 is formed in the center thereof. And inside the suction port 12 A dustproof filter 17 is provided to cover the suction port 12 from the inside. Also, The lower part of the heat exchanger 15 receives water droplets that are condensed on the surface of the heat exchanger 15 and fall. A drain pan 18 is arranged inside the drain pan 18. A bell mouth 19 is integrally formed to separate the suction path and the outlet path of the electric fan 14. It is. The lower surface of the bell mouth 19 is coated with reflective paint, As shown in FIG. 3, the fluorescent lamps 16a, 16b are is located.

0012 Below the drain pan 18, there is a drain leading to the drain pan 18, as shown in FIG. A tank 21 is provided. Then, on the top surface of bell mouth 19, drain tank 2 A pump 22 is installed in a portion located above 1. Suction of pump 22 The port is inserted into the drain tank 21 through the pipe 23, and the discharge port is inserted into the drain tank 21 through the pipe 23. Connected to 4. The pipe 24 is a pipe for fluid circulation to the heat exchanger 15. power supply wiring for the pump 25, electric fan 14, pump 22, and fluorescent lamps 16a and 16b. the ceiling as shown in Figure 1, together protected by a pipe 26 that protects the Inura is guided toward an outdoor unit and a switch (not shown). In addition, in Figure 4, 2 7a and 27b are when the level of water 28 in the drain tank 21 increases above a predetermined level. 2 shows electrodes that are electrically connected through the water to drive the pump 22. With this configuration, an example of when it is used as an air conditioner is as follows. It is as below.

[0013] That is, the refrigerant liquefied by the outdoor unit is passed through the pipe 25 to the heat exchanger 15. At the same time, the electric fan 14 is driven. Electric fan 14 rotates Then, the indoor air is sucked into the housing 11 from the suction port 12, as shown by the solid line arrow in FIG. Rarely, the direction is changed by almost 90 degrees by the electric fan 14 and comes into contact with the heat exchanger 15. After that, the air is blown out from each outlet 13 in the radial direction. As mentioned above, the heat exchanger 15 has Since the refrigerant is flowing, cold air is eventually blown out from each outlet 13. It becomes. It also condenses on the surface of the heat exchanger 15 and collects in the drain tank 21. The water 28 is pumped outdoors by the pump 22 every time the liquid level reaches a predetermined level or higher. It is pumped out, and the function as an air conditioner is demonstrated well here. this When the fluorescent lamps 16a and 16b are turned on, the room can be illuminated at the same time. I can do that.

[0014] In this way, since the indoor unit S is formed into a ceiling-mounted structure, this indoor unit S The central part of the ceiling R, that is, the area where it is easiest to balance the furniture in the room, and where the room temperature is It becomes possible to install it at a position where it is easy to alleviate the unevenness of the degree. Moreover, the indoor unit S Since the lighting equipment used for indoor lighting is installed, the indoor unit S and the lighting are installed on the ceiling R. It will not worsen the furniture balance in the room as it would if the fixtures were installed separately. .

[0015] In addition, in the case of this embodiment, the air sucked into the housing 11 is simply rotated at approximately 90 degrees. Air is blown out only when the direction is changed, and air is blown out in a radial direction centered on the suction port 12. Therefore, the noise level can be suppressed to a sufficiently low value. Furthermore, examples As shown in the figure, when a centrifugal electric fan 14 is used, the sucked air is automatically Since the direction can be changed 90 degrees and sent out, there is a bell mouth inside the housing 11. It is only necessary to provide a simple guide mechanism, which simplifies the overall configuration.

[0016] Note that the present invention is not limited to the embodiments described above. For example, in Figure 5 As shown, the housing 11 has a flat rectangular shape, and air outlets 13 are provided on each of the four side walls. It may be provided. In addition, as shown in FIG. 6, a heat exchanger is installed around the electric fan 14. 15 are arranged in a U-shape, and as shown in FIG. An air outlet 13 is provided on the side wall facing the air outlet, and air is blown out in three directions. It's okay. In addition, the shape of the housing 11 is not limited to a flat disk shape or a square shape, as shown in FIG. As shown, it may be formed into a flat triangular shape. Also incorporated fluorescent lamp For example, as shown in FIG. 9, a linear fluorescent lamp 16c is arranged in parallel or arranged in a frame shape surrounding the suction port 12 as shown in FIG. It's okay. Of course, they may be arranged so that they are exposed. Also, pipe 26 It is not limited to the space above the ceiling, but may be placed along the lower surface of the ceiling. In addition, as an electric fan In addition to the centrifugal fan, a mixed flow fan may also be used.

[0017]

[Effect of the idea]

As described in detail above, according to the present invention, the central part of the ceiling can disrupt the furniture balance in the room. It is installed in a condition that can reduce the temperature fluctuations in the room without causing any damage, and also serves as a lighting fixture. can do.

[Brief explanation of drawings]

FIG. 1 is a vertical cross-sectional view of an indoor unit according to an embodiment of the present invention;

[Fig. 2] A diagram of the indoor unit cut along the line A-A in Fig. 1 and viewed in the direction of the arrow,

[Fig. 3] A diagram of the indoor unit cut along line B-B in Fig. 1 and viewed in the direction of the arrow,

[Fig. 4] Local longitudinal cross-sectional view of the indoor unit,

FIG. 5 is an external view of an indoor unit according to another embodiment of the present invention;

FIG. 6 is a diagram for explaining the relationship between an electric fan and a heat exchanger in an indoor unit according to yet another embodiment of the present invention;

[Figure 7] External view of the indoor unit,

FIG. 8 is a plan view of an indoor unit according to a different embodiment of the present invention;

FIG. 9 is a bottom view of an indoor unit according to yet another embodiment of the present invention;

FIG. 10 is a bottom view of an indoor unit according to another embodiment of the present invention;

FIG. 11 is a perspective view showing the installation state of a conventional indoor unit of this type;

FIG. 12 is a vertical cross-sectional view showing the internal configuration of a conventional indoor unit;

FIG. 13 is a vertical cross-sectional view showing the internal configuration of another conventional indoor unit.

[Explanation of symbols]

11...Housing, 12...Suction port, 13
...Air outlet, 14...Electric fan, 15...Heat exchanger, 16a, 16b, 16c...Fluorescent lamp, S, _S0 , _S1 , _S2 , _S3 , _S4 ...Indoor unit, R...Ceiling.

Claims (1)

[Scope of utility model registration request] Claims: 1. A casing that is attached to a ceiling and formed thin and flat in the vertical direction; an air inlet formed in a lower wall of the casing; and an air outlet formed in a wall of the casing. an electric fan provided in the casing for forcibly exhausting air sucked in through the air intake port through the air outlet; An indoor unit of an indoor/outdoor separated type air conditioner, characterized in that it comprises a heat exchanger provided in between, and a lighting fixture for indoor lighting supported by the casing.