JP2000213767A - Air conditioning unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioning unit which achieves a smaller size as well as lower noises and excellent workability by sufficiently effective utilization of a limited space in ceiling imbedded type air conditioning unit. SOLUTION: A heat exchanger 2 is arranged in shape of U to cover a suction surface, not on the side of a diffuser 7 of a unit and a sirocco fan 6 is arranged on the downstream side of the heat exchanger 2. The heat exchanger 2 is made to almost inscribe the inside of the suction surface of the unit body 1, and an intake port 11 is disposed outside the unit body 1. Sucked air A from the intake port 11 runs through the unit body 1 from outside to pass through the heat exchanger 2. Thus, a larger size (length) of the heat exchanger 2 can significantly improve heat exchange performance, thereby providing an air conditioning unit with excellent workability along with lower noises.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suction structure of an air conditioner of a ceiling embedded type.

[0002]

2. Description of the Related Art Conventionally, as an air conditioning unit of this kind, for example, a structure as shown in FIGS. 14 and 15 has been provided.

That is, a heat exchanger 2, a water receiving tray 3, and a fan device 4 are disposed in a unit body 1, and the fan device 4 is provided with a fan motor 5 formed on both shafts.
It comprises a sirocco fan 6 attached to each shaft, a casing 9 having a blowout port 7 and a suction port 8, and the like. The heat exchanger 2 is disposed in a U-shape so as to cover three surfaces other than the outlet 7 side of the unit, and the sirocco fan 6 is disposed downstream of the heat exchanger 2. , And a post-installed decorative panel 10
The suction port 11 is formed.

According to such a conventional configuration, the suction air A sucked from the grill suction port 11 passes through the heat exchanger 2, then passes through the suction port 8 of the casing 9, and is blown out by the sirocco fan 6. The air is blown out from the mouth 7 into the room as air B. At this time, since the sirocco fan 6 is located downstream of the heat exchanger 2, the suction air A passes through the heat exchanger 2 at a substantially uniform wind speed unless there is an extreme resistance difference at the suction port 11. Become. Therefore, the heat exchange performance is improved by the increase in the width of the heat exchanger 2, and the required air volume is reduced to reduce noise.

[0005]

However, according to the above-mentioned conventional structure, the indoor air suction port 11 is located inside the unit main body 1, so that in the case of an air conditioner of a ceiling-embedded type, the construction and the landscape are difficult. From the above viewpoints, restrictions are imposed on the dimensions of the main body and the opening of the ceiling. That is, from the viewpoint of construction, it is easier to construct the ceiling with a larger opening, but in that case, the decorative panel 10 is inevitably large, which is a problem in view. Conversely, if the panel dimensions are determined from the viewpoint of the landscape, the main body dimensions are determined, and the arrangement and size (length) of the heat exchanger 2 are also determined within the restrictions.

The present invention solves the above-mentioned conventional problems, and makes full use of the limited space of an air-conditioning unit of a ceiling-embedded type. An object is to provide an excellent air conditioning unit.

[0007]

In order to achieve the above-mentioned object, an air conditioning unit according to the first aspect of the present invention comprises a heat exchanger, a water exchanger and a water supply unit in a unit body having a suction surface and an air outlet. Receiving a tray and a fan device, the fan device is constituted by a fan motor formed on both shafts and a sirocco fan attached to each shaft, and the heat exchanger is connected to the outlet side of the unit. Is arranged in a U-shape so as to cover another suction surface, and the sirocco fan is disposed downstream of the heat exchanger, and the heat exchanger is substantially inscribed inside the suction surface of the unit body. It is characterized by having been arranged.

Therefore, according to the first aspect of the present invention, the size (length) of the heat exchanger is increased by the configuration in which the air sucked from the suction port is passed through the unit main body from the outside and passes through the heat exchanger. Thus, the heat exchange performance can be greatly improved, the noise can be reduced, and an air conditioning unit excellent in workability can be provided.

According to a second aspect of the present invention, in the air conditioning unit according to the first aspect of the present invention, a suction panel and a discharge port are provided on a decorative panel which is rear-mounted on the unit main body side. An outer wall is provided outside of the center of the main body, and when the decorative panel is installed, a substantially closed space is formed between the outer wall and the heat exchanger.

Therefore, according to the second aspect of the present invention, the suction air from the suction port is guided by the outer wall,
By passing through the space formed outside the unit body and then passing through the heat exchanger, the size (length) of the heat exchanger can be increased and the heat exchange performance can be greatly improved. Thus, it is possible to provide an air-conditioning unit that can achieve low noise and excellent workability.

According to a third aspect of the present invention, there is provided an air conditioning unit according to the first aspect, wherein at least two suction surfaces on the left and right sides or the rear surface when the outlet side of the unit body is set to the front. Corresponding to the above, a convex space is provided on the outer wall of the unit main body, a suction port and a discharge port are provided on a rear-installed decorative panel, and a suction port is provided at a position where air is introduced into the space. It is characterized by doing.

Therefore, according to the third aspect of the present invention, the suction air from the suction port is guided by the convex outer wall, passes through the space formed outside the unit body, and then passes through the heat exchanger. In addition, the size (length) of the heat exchanger can be increased, the heat exchange performance can be greatly improved, the noise can be reduced, and an air conditioning unit excellent in workability can be provided. .

According to a fourth aspect of the present invention, there is provided the air conditioning unit according to the first aspect, wherein at least two suction surfaces on the left and right sides or the rear surface when the outlet side of the unit body is set to the front. In response to the above, on the unit body side, a member that can be opened and closed and that creates a convex space when opened is provided, and a suction panel and a blowout port are provided on a rear-installed decorative panel, and suction is performed at a position where air is guided to the space. It is characterized in that the mouth is arranged.

According to the fourth aspect of the present invention, after the suction air from the suction port is guided by the member opened to the unit main body, it passes through the convex space formed outside the unit main body. Due to the configuration for passing the heat exchanger, the size (length) of the heat exchanger can be increased, the heat exchange performance can be greatly improved, the noise can be reduced, and the workability is excellent. An air conditioning unit can be provided.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below.
This will be described with reference to FIGS. Note that the same or substantially the same components as those in the conventional example are denoted by the same reference numerals, and detailed description thereof will be omitted. That is, in FIGS. 1 to 13, 1 is a unit body, 2 is a heat exchanger, 3 is a water tray,
4 is a fan device, 5 is a fan motor, 6 is a sirocco fan, 7 is an outlet, 8 is a suction port of a casing, 9
Denotes a casing, 10 denotes a decorative panel, 11 denotes a grill suction port, A denotes suction air, and B denotes blowing air. (First Embodiment) A first embodiment of the present invention will be described with reference to FIGS.

1 to 3, the heat exchanger 2 is
It is disposed inside the unit body 1 so as to be substantially inscribed.
Here, the unit main body 1 is configured such that the unit main body side plate 1a and the unit main body back plate 1b are formed on a suction surface by a perforated structure or a bar structure through which the suction air A can flow, and the unit main body side plate 1a and the unit The filter 12 is provided between the back plate 1b and the heat exchanger 2.
Is provided.

Therefore, according to the first embodiment, the suction air A drawn from the suction port 11 of the grill is
Through the space in the ceiling, the unit main body side plate 1a and the unit main body back plate 1b pass through the filter 12, pass through the heat exchanger 2, and then pass through the suction port 8 of the casing 9, and then through the sirocco fan 6, the outlet port. 7 is blown into the room as blown air B. At this time, since the sirocco fan 6 is located downstream of the heat exchanger 2, the suction air A passes through the heat exchanger 2 at a substantially uniform wind speed unless there is an extreme resistance difference at the suction port 11. Become.

As in the first embodiment, a specified area provided in the unit main body 1 at a position smaller than the unit main body side plate 1a or the unit main body back plate 1b and away from the heat exchanger 2 is specified. If the suction port is not provided, the width (area) of the heat exchanger 2 can be greatly increased, and the heat exchange performance can be greatly improved.
The required air volume is reduced and noise can be reduced. Second Embodiment A second embodiment of the present invention will be described with reference to FIGS.

In FIGS. 4 to 6, a decorative panel 10 installed rearward with respect to the unit main body 1 has a suction port 11 attached thereto.
And the outlet 7 are provided. An outer wall 13 is provided outside the center of the main body of the suction port 11, and the outer wall 1
Reference numeral 3 includes a side outer wall portion 13a and a rear outer wall portion 13b. The outer surface of the heat exchanger 2 is provided with a filter 12 corresponding to the same suction surface as in the previous embodiment, and when the decorative panel 10 is installed, the outer wall 13 and the filter 12
The heat exchanger 2 is configured so that a substantially closed space 14 is formed between the heat exchanger 2 and the heat exchanger 2.

Therefore, according to the second embodiment, the suction air A sucked into the space 14 from the suction port 11 of the grill is guided by the outer wall 13 attached to the decorative panel 10, passes through the filter 12, and then exchanges heat. Vessel 2
, And then through the suction port 8 of the casing 9,
Then, the sirocco fan 6 blows out the air B from the outlet 7 into the room. At this time, since the sirocco fan 6 is located downstream of the heat exchanger 2, the suction air A passes through the heat exchanger 2 at a substantially uniform wind speed unless there is an extreme resistance difference at the suction port 11. Become.

As in the first embodiment, the second embodiment has a structure in which the suction port specified in the unit body 1 is not provided, and the width (area) of the heat exchanger 2 is greatly increased. The heat exchange performance can be greatly improved, and the required air volume can be reduced to reduce noise.

Here, in the second embodiment, as described above, the outer wall 13 is fixed to the decorative panel 10 at a predetermined position, and at the same time as the decorative panel 10 is attached, the decorative panel 10 has a broad sense including a wind circuit. Is formed. In addition, the outer wall 13 may be a perforated structure or a crossbar structure through which the suction air A can flow, or may be a plate-like structure having no opening. In the former case, it is possible to inhale from the ceiling surface, and this is the case where a high airtight house is applied. In the latter case, it is the case of a general house in which only indoor air is purely sucked. (Third Embodiment) A third embodiment of the present invention will be described with reference to FIGS.

In FIGS. 7 to 9, the outer walls 15a, 15b of the unit main body 1 are convex corresponding to at least two suction surfaces on the left and right sides or the rear side when the outlet side of the unit main body 1 is at the front. Are provided to form convex spaces 16a and 16b. The rear panel 10 has suction ports 11a and 11b and a blowout port 7, and the suction ports 11a and 11b are arranged at positions where air is guided to the convex spaces 16a and 16b. Note that a filter 12 is provided on the decorative panel 10 so as to face the suction ports 11a and 11b.

Therefore, according to the third embodiment, the suction air A drawn from the suction ports 11a and 11b of the grill passes through the filter 12 and passes through the convex outer walls 15a and 15a.
Guided by 15b, it passes through the spaces 16a, 16b and through the heat exchanger 2, then through the inlet 8 of the casing 9, and is blown out by the sirocco fan 6 from the outlet 7 into the room as blown air B. .
At this time, since the sirocco fan 6 is located downstream of the heat exchanger 2, the suction air A passes through the heat exchanger 2 at a substantially uniform wind speed unless there is an extreme resistance difference between the suction ports 11a and 11b. Will be.

As in the third embodiment, if the specified suction port is not provided in the unit body 1 as in the previous embodiments, the width of the heat exchanger 2 can be greatly increased. As a result, the heat exchange performance can be greatly improved, and the required air volume can be reduced to reduce noise.

Here, in the third embodiment, as described above, the convex outer walls 15a and 15b are provided at predetermined positions on the unit main body 1, and the filter 12 is attached to the decorative panel 10. However, as long as it is on the upstream side of the heat exchanger 2, it may be attached to the unit body 1. At that time, spaces other than the convex suction ports 11a and 11b can be effectively used for construction. Also, the convex outer walls 15a, 15
b may be a perforated structure or a bar structure through which the suction air A can flow, or may be a plate-like structure having no opening. In the former case, it is possible to inhale from the ceiling surface, and this is the case where a high airtight house is applied. In the latter case, it is the case of a general house in which only indoor air is purely sucked. (Fourth Embodiment) The fourth embodiment of the present invention will be described with reference to FIGS.
An example will be described.

In FIG. 10 to FIG.
The unit main body 1 corresponds to at least two suction surfaces on the left and right sides or the back side when the outlet side of the unit is in front.
On the side, the spaces 18a, 18b which can be opened and closed and which are convex when opened.
(Outer walls) 17a and 17b are provided. Then, the suction port 11 is inserted into the rear-mounted decorative panel 10.
a and 11b and the outlet 7 are provided, and the suction ports 11a and 11b are arranged at positions where air is guided to the convex spaces 18a and 18b. Suction port 11
a, 11b, the filter 1 is attached to the decorative panel 10.
2 are provided.

FIG. 12 shows a state in which the side member 17a is closed, and FIG. 13 shows a state in which the side member 17a is open.

Therefore, according to the fourth embodiment, the suction air A sucked from the suction ports 11a and 11b of the grill passes through the filter 12 corresponding to the suction surface, and the members 17a and 17a are opened with respect to the unit body 1. 1
7b, through the convex spaces 18a, 18b and through the heat exchanger 2, then through the suction port 8 of the casing 9, and by the sirocco fan 6,
The air is blown out from the outlet 7 into the room as blown air B. At this time, since the sirocco fan 6 is located downstream of the heat exchanger 2, the suction air A passes through the heat exchanger 2 at a substantially uniform wind speed unless there is an extreme resistance difference between the suction ports 11a and 11b. Will be.

If the suction port is not provided in the unit body 1 as in the fourth embodiment, the heat exchanger 2
Can significantly increase the width (area) of the device, thereby significantly improving the heat exchange performance and reducing the required air volume to reduce noise.

Here, in the fourth embodiment, as described above, the members 17a, 17b
Is disposed at a predetermined position, and the filter 12 is attached to the decorative panel 10. However, the filter 12 may be attached to the unit body 1 on the upstream side of the heat exchanger 2.
At that time, spaces other than the convex suction ports 11a and 11b can be effectively used for construction. Openable and closable member 1
7a, 17b may be a perforated structure or a cross-bar structure through which the suction air A can flow, or may be a plate-like structure having no opening. In the former case, it is possible to inhale from the ceiling surface, and this is the case where a high airtight house is applied. In the latter case, it is the case of a general house in which only indoor air is purely sucked.

[0032]

As described above, according to the present invention, the heat exchanger of the ceiling-embedded type air conditioning unit is disposed in a U-shape so as to cover a suction surface different from the outlet side of the unit. A sirocco fan is arranged downstream of the heat exchanger, and the heat exchanger is substantially inscribed inside the unit main body, so that the suction port can be located outside the unit main body, It is possible to provide an air-conditioning unit that can have a large size (length), greatly improve heat exchange performance, reduce noise, and have excellent workability.

[Brief description of the drawings]

FIG. 1 is a cross-sectional plan view of an air conditioning unit according to a first embodiment of the present invention.

FIG. 2 is a longitudinal side view of the same.

FIG. 3 is a longitudinal sectional front view of the same.

FIG. 4 is a cross-sectional plan view of an air conditioning unit according to a second embodiment of the present invention.

FIG. 5 is a longitudinal side view of the same.

FIG. 6 is a longitudinal sectional front view of the same.

FIG. 7 is a cross-sectional plan view of an air conditioning unit according to a third embodiment of the present invention.

FIG. 8 is a longitudinal side view of the same.

FIG. 9 is a longitudinal sectional front view of the same.

FIG. 10 is a cross-sectional plan view of an air conditioning unit according to a fourth embodiment of the present invention.

FIG. 11 is a longitudinal side view of the same.

FIG. 12 is a longitudinal sectional front view when the member is closed.

FIG. 13 is a longitudinal sectional front view when the member is opened.

FIG. 14 is a cross-sectional plan view of an air conditioning unit in a conventional example.

FIG. 15 is a longitudinal side view of the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Unit main body 1a Unit main body side plate (suction surface) 1b Unit main body back plate (suction surface) 2 Heat exchanger 3 Water receiving tray 4 Fan device 5 Fan motor 6 Sirocco fan 7 Outlet 8 Casing inlet 9 Casing 10 Decorative panel 11 Grill inlet 11a Grill inlet 11b Grill inlet 12 Filter (suction surface) 13 Outer wall 13a Side outer wall 13b Back outer wall 14 Space 15a Convex outer wall 15b Convex outer wall 16a Convex space 16b Convex space 17a Side member 17b Back member 18a Convex space 18b Convex space A Suction air B Blow air

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Keiji Nakao 1006 Kadoma Kadoma, Kadoma City, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd. Terms (Reference) 3L049 BB08 BB10 BB11 BC01 BD01 BD05 3L051 BE07 BG06 BH01

Claims (4)

[Claims] 1. A heat exchanger, a water receiving tray, and a fan device are provided in a unit body having a suction surface and an outlet, and a fan motor formed on both shafts, The heat exchanger is arranged in a U-shape so as to cover a suction surface different from the outlet side of the unit, and the heat exchanger is provided downstream of the heat exchanger. An air-conditioning unit, wherein a sirocco fan is arranged, and the heat exchanger is arranged so as to be substantially inscribed inside the suction surface of the unit body. 2. A suction panel and a blow-out port are provided in a decorative panel installed rearward with respect to the unit main body, and an outer wall is provided outside the center of the suction port from the center of the main body. The air conditioning unit according to claim 1, wherein a substantially closed space is formed between the air conditioning unit and the air conditioning unit. 3. A convex space is provided on an outer wall of the unit main body corresponding to at least two suction surfaces on the left and right sides or the rear surface when the outlet side of the unit main body is facing forward,
2. A suction panel and a blow-off port are provided on a rear-installed decorative panel, and the suction port is arranged at a position where air is introduced into the space.
The air conditioning unit as described. 4. A space which is openable and closable on the side of the unit body, and which is convex when opened, corresponding to at least two suction surfaces on the left and right sides or on the rear side when the outlet side of the unit body is on the front side. 2. An air conditioner according to claim 1, wherein a member is provided, and a suction port and a discharge port are provided on a rear-mounted decorative panel, and the suction port is disposed at a position where air is introduced into the space. unit.