JP3537264B2 - Air conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner for performing convection and radiation combined cooling and heating using a jet flow attached to a ceiling of a corander, which is excellent in comfort for a person living in a room of a building.

[0002]

2. Description of the Related Art As an example of this type of air conditioner, there is known an air conditioner disclosed in Japanese Patent Laid-Open Publication No. Hei 5-141718. As shown in FIGS. 11 and 12, cold or hot air is blown into a panel unit box 1 incorporated in a ceiling of a conventional method, and heat is exchanged with a ceiling plate 2 to blow out with a vane mechanism 3. The configuration is such that the conditioned air is blown into the room 6 through the mouth 4. The direction of the blown air is variable by the vane mechanism 3, and when the blown air is blown in a direction along the ceiling surface 2a, the ceiling surface is further cooled (heated) by the convection heat transfer effect, and the radiation effect is increased. The air after blowing is returned to the air conditioner after the indoor heat load processing. 5 is a duct in the ceiling.

The conventional example described above is a combined convection / radiation air conditioner capable of performing forced convection air conditioning in addition to radiant air conditioning using the same panel unit, but has the following disadvantages. In addition to the air conditioner, a radiation panel unit and a connection duct are required, and the air conditioner body cannot use a simple device such as a wall-mounted room air conditioner. The radiation effect can be obtained only from the ceiling surface area of the panel unit, and the radiation effect cannot be obtained from a wide surface of the ceiling having a large view factor. Since the ceiling surface is cooled from the upper surface of the ceiling by the cool air in the box of the panel unit rather than from the lower surface of the ceiling, the heat insulation coating of the panel unit box is required to prevent heat exchange between the ceiling space and the panel unit box. In addition, there is also a concern about dew condensation on the lower surface of the ceiling when the air conditioner is turned on and off.

On the other hand, when a popular wall-mounted room air conditioner is used as an air conditioner, since it is a direct system,
When it is inexpensive and is applied to condominiums, etc., it is easy to accommodate options for the air conditioner itself. However, if a packaged air conditioner such as a room air conditioner is used as it is, the temperature of the regulated air and the amount of the blown air are limited at low and low airflow, and the indoor surface of the ceiling is maintained at about 20 ° C or more. This makes it difficult to control dew condensation on the ceiling surface, and to ensure the amount and speed of the adjusted air to be blown out to form a jet flow attached to the ceiling of the corander ceiling.

Accordingly, the present inventors have improved the above-mentioned drawbacks, and have proposed a basic air-conditioning system using a hybrid method that eliminates both drawbacks while retaining the advantages of both the convection heat transfer method and the radiation heat transfer method. Regarding technology, Japanese Patent Application No. 7-64
Patent Application No. 930 (not disclosed) is already pending.

[0006]

SUMMARY OF THE INVENTION The present invention is a further development of the invention according to the prior application, and is a new combination of a wall-mounted type room air conditioner satisfying the required indoor cooling capacity and a cross fan. It is an object of the present invention to provide an air conditioner that enables free setting of the temperature and amount of air blown out of the adjusting air by combination, and that can perform cooling and heating combined with convection and radiation using a jet flow attached to the ceiling of the corander. .

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, an air conditioner according to the present invention is provided on a ceiling panel having an air inlet for discharging indoor air into a ceiling space, and on a window upper wall. A wall-mounted room air conditioner that sucks a part of the return air from the pocket space through a suction port thereof, a bypass air filter that has a bypass air filter in the middle, and a bypass air passage that passes another part of the return air; And air from the bypass air passage,
It is characterized by comprising an air mixing chamber for controlling the temperature and a cross fan wider than the width of the room air conditioner for sucking air mixed in the air mixing chamber and blowing the air into the room. When the air blowing out from the room air conditioner is cold air,
A configuration is provided that has a mechanism that blows cool air downward at a predetermined angle at the time of cooling start and a blow direction control mechanism that blows cool air parallel to the ceiling surface in order to generate a jet flow attached to the ceiling of the ceiling after cooling. Is good. Further, it is preferable that the cross fan has a blowing direction control mechanism that blows the hot air vertically downward when the air blown from the room air conditioner is hot air. Package-type air conditioners such as wall-mounted room air conditioners, when the room reaches a set temperature, the fan is also repeatedly ON-OFF together with the compressor, so there is concern about condensation on the ceiling surface when the fan is OFF. , By using a cross fan
During cooling, a jet attached to the ceiling can be formed at all times, so there is no such a concern. The use of a ceiling-chamber urethane system may cause dust to collect inside the ceiling space, and this dust-containing air may be blown into the room. This problem was solved by installing a filter in the return air suction section are doing. The vicinity of the window in the room is easily affected by the radiation from the window surface and the thermal effect of solar radiation. However, the use of the air mixing chamber component plate as a radiant panel softens this and makes the indoor heat distribution uniform. Has contributed. In addition, at the time of heating, an air curtain that covers the entire window glass of the room is formed by blowing a two-dimensional jet of conditioned air from the cross fan vertically downward, thereby suppressing cold draft more effectively than a general room air conditioner. I have.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. 1 to 9 show an air conditioner according to a first example of the present invention. The building shown in each figure is composed of a concrete body, and a ceiling panel 11 constructed by a conventional construction method with a ceiling margin 10 or the like is formed on the lower surface (the indoor side surface) of the concrete ceiling slab 7. The ceiling panel 11 is made of a material having a high emissivity, such as a material in which a high emissivity paint is applied to the indoor surface of a metallic material such as a thin steel plate or an aluminum plate, in addition to a conventional material such as a gypsum board. Is done. Between the ceiling panel 11 and the ceiling slab 7, a ceiling space 12 through which air-conditioned return air flows is formed.
A room 14 is formed by being separated from the adjacent room.

An air conditioner (hereinafter referred to as a room air conditioner) 18 is provided inside a window upper wall 16 located above the window 15 by a mounting bracket 17. Room air conditioner 1
Reference numeral 8 denotes a general-purpose (wall-mounted) air conditioner, which has an air-conditioned air outlet 20 and a return air inlet 21. Also, from the room air conditioner 18, the refrigerant pipe 22 and the drain pipe 23 are led out through the window upper wall 16 to the outside,
The refrigerant pipe 22 is connected to the outdoor unit 24.

The height of the ceiling panel 11 is such that the effective height of the return air passage portion of the ceiling space is about 10 cm.
It is provided at a height position that can secure the above. As shown in FIG. 4, one end 11a of the ceiling panel 11 surrounds the room air conditioner 18 around the inlet 2 of the room air conditioner 18.
1, the other end 11 b extends to near the partition wall 13 that separates from the adjacent room, and the ceiling panel 11 further includes one or more air intakes for mixed air of conditioned air and indoor air. , Only the intermediate suction port 25, only the tip suction port 26, or both the intermediate suction port 25 and the tip suction port 26 are provided. During heating,
In addition to the above-described suction ports 25 and 26, suction may be performed from the rear end suction port 25a.

An air mixing chamber 27 is provided in front of the room air conditioner 18, and a cross-fan 28 communicating with the air outlet 20 of the room air conditioner 18 and the bypass air passage 40 is provided at the tip of the air mixing chamber 27. Is provided.

As shown in FIG. 4 as a perspective view, the width L of the room air conditioner 18 is substantially equal to the width of the cross fan 28 housed therein.
7 to the width L ₁ of the chamber width of the side where the window 15 is provided L
₂ is provided in a relationship of L> L ₁ > L ₂ .

The width dimension L of the room air conditioner 18 (this is
The width of the air outlet 20 of the room air conditioner is large or small depending on the size of the capacity. This is left to the choice of the user, and may be arbitrary, whereas the width L ₁ of the air mixing chamber 27 ( This is also the width of the room for the air outlet port 28b) is a larger than the width L of the room air conditioner 18, preferably, may be disposed on the dimensions as close possible to the chamber width L _2.

The cross fan 28 is blown from the air outlet 20 of the room air conditioner 18 and is connected to the bypass air passage 4.
The air-conditioned air mixed with the bypass air from 0 and passed through the air mixing chamber 27 is blown into the room as a wider two-dimensional jet. Also, the cross fan 28, in order to ensure the width dimension L ₁ of the air outlet, in the example shown in FIG. 4 is constructed by arranging connecting cross Juan alone to two aircraft series. That is, L
_In accordance with _one dimension, one or a plurality of cross fans 28 are connected to form the outlet 28b.

FIG. 2 is a sectional view taken along line AA of FIG. 6, and FIG. 3 is a sectional view taken along line BB of FIG. 6. As shown in these figures and FIG.
Are arranged so as to surround the room air conditioner 18. In other words, the air mixing chamber 27 has a substantially U-shaped cross section perpendicular to the longitudinal direction, and has a curtain 30 inside.
A lower chamber constituting plate 32 capable of incorporating a curtain box 31 for suspending the same, a chamber main body casing 33 having a cross section perpendicular to the longitudinal direction having one end facing in the horizontal direction and the other end rising vertically upward, for example, in an arc shape, Inspection port 3 formed between this chamber main body casing 33 and lower chamber constituting plate 32 for maintenance of a filter, etc.
Opening / closing plate 3 provided via hinge 35 to open / close 4
6 is comprised. Mixing chamber 2
7 is provided with a cross fan main body 39 connected to the upper end portion. The cross fan main body 39 has an upper horizontal portion 37 and a vertical portion 38, a cross section perpendicular to the longitudinal direction is formed into a substantially L-shape, and the cross fan 28 is accommodated inside the cross fan main body 39. Are supported from the ceiling slab by the suspension bolts 8 and are fixed to the lower surface of the ceiling panel 11.

The vertical portion 38 of the cross fan body 39 is spaced from the suction port 21 of the room air conditioner 18 by a predetermined distance,
By hanging down substantially in parallel with this, and further connecting the vertical plate 38a constituting the chamber to the lower end thereof, an air passage 40 for bypass is formed therebetween, and the vertical plate 38a constituting the chamber and the room air conditioner 18 are formed. Between the front bypass filter 4 and the lower part of the suction port 21
1 are provided, and side bypass filters 42 are provided on both sides thereof.

The front bypass filter 41;
The side bypass filter 42 is provided so as to cover the periphery of the room air conditioner 18 as shown in FIGS. Also, the front bypass filter 41
Is attached to the vertical plate 38 a of the chamber below the vertical portion 38 of the cross fan body 39 having the L-shaped cross section by the hinge 44.
° It is provided rotatably upward.

The side bypass filters 42 are provided on both sides of the room air conditioner 18 at the same height as the front bypass filters 41 so as to be continuous with the front bypass filters 41 in the horizontal direction. The side bypass filter 42 is slidably supported in the horizontal direction by the support means shown in FIGS. As shown in each figure, a lower position of an outside air inlet 45 provided inside the window upper wall 16 and penetrating the window upper wall 16 in and out;
Vertical plate 3 with chamber below the cross fan body 39
8a, with the respective openings facing each other,
A pair of guide rails 46 having a U-shaped cross section perpendicular to the longitudinal direction are provided in pairs at the same height position, and both end edges of the side bypass filter 42 are provided in recesses of the guide rails 46. Are slidably inserted and supported.

The reason why the side bypass filter 42 is slidably supported along the guide rails 46 is that the side bypass filter 42 can be easily replaced for maintenance and that the width of the room air conditioner 18 is adjusted to L. This is to facilitate the adjustment of the installation position of the side bypass filter 42 in both side directions.
Further, a horizontal plate member 47 is attached to the guide rail 46 at a side position of the side bypass filter 42 supported by the guide rail 46 as a member that fills the space of the drawn-in portion of the side bypass filter 42. I have.

The bypass air passage 40 includes a front bypass filter 41 and a side bypass filter 42.
Through the air mixing chamber 27.

In the air mixing chamber 27, a conditioned air diffusion plate 48 having a plurality of communication ports 54 at intervals is provided below the vertical plate 38a constituting the chamber. The air-conditioning air blown forward from the air outlet 20 of the room air conditioner 18 and the return air from the bypass air passage 40 hit the air-conditioning air diffusion plate 48 and are diffused left and right. 5
Go through four. As a result, the conditioned air is diffused over the entire length of the chamber body casing 33 constituting the air mixing chamber 27 in the width direction, and is evenly sucked into the suction port (not shown) of the wide cross fan casing 28a.

The conditioned air entering the cross fan casing 28a is accelerated by a cross fan main body (not shown) and is blown into the room 14 from the indoor outlet 28b.

The construction of the cross fan body 39 is known, and a motor driven cross fan 28 is provided in a cross fan casing 28a having a cross fan outlet 28b.
When the cross fan 28 and the cross fan casing 28a are individually rotated by a driving device (not shown), the cross fan outlet 28b is moved between the solid line and the two-dot chain line in FIGS. The cooling air can be blown out toward the room over a wide width at an angle of about 45 ° with respect to the horizontal direction and downward, and when blowing out in the horizontal direction, a jet flow attached to the ceiling of the ceiling and under the ceiling is formed. Can be formed.

In front of the cross fan outlet 28b, a heating air flow guide plate 50 is rotatably suspended by a hinge 49 at the tip of the upper horizontal portion 37 of the cross fan body 39. Heating air flow guide plate 50
During the heating, the air hangs down as shown by the two-dot chain line in FIG. 2, and therefore, the warm air blown out from the cross fan outlet 28 b collides with the heating airflow guide plate 50 and moves vertically downward in the room. It is blown out.

On the other hand, during cooling, the heating airflow guide plate 50 is lifted horizontally about the hinge 49 in principle, and the change in the blowing angle of the cool air is changed by the cross fan outlet 28.
Perform by rotating b. In some cases, this may be performed by changing the angle of the heating airflow guide plate 50. The blowing angle of the cool air is set to be in a range of about 45 ° below the jet flow attached to the ceiling in the horizontal direction.

The air conditioner according to the first example is constructed as described above, and the flow of conditioned air such as cold air and hot air circulating through the room and the ceiling space 12 by the room air conditioner 18 and the cross fan 28. Is shown in the flowchart shown in FIG.

In the present invention, it is important that the room air conditioner 18, the air mixing chamber 27, and the cross fan 28 are combined. The cross fan 28 has the following four functions. That is, the air-conditioning air blown from the room air conditioner 18 is blown out as a two-dimensional jet, and the air inlet 25 or 26 or both the air inlets 25 and 26 on the ceiling in the room or the air inlets 25 and 26 during heating are heated. In addition, the function of returning the return air to the room air-conditioner 18 from the rear end suction port 25a through the ceiling air space 12 and the adjustment of the cross-fan air volume allow the mixing air volume of the return air (air-conditioning air passing through the room air-conditioner, bypass air). (The ratio of the air flowing back through the passage) to control the temperature of the blown jet from the cross-fan blow, and the air mixing chamber 2
This has the effect of preventing the inside air from being blown out from the room air conditioner 18 into a short circuit at the room air conditioner suction port by making the inside of the room 7 a negative pressure.

The air mixing chamber 27 is
It mixes the air blown out of the room air conditioner 18 and the return air from the bypass air passage 40 to form a path for introducing the mixing air into the cross fan 28, and further has an opening / closing plate 36. It functions as a cover for the device that also serves as maintenance. Furthermore, the surface of the radiant panel is cooled by forming each chamber constituting plate constituting the air mixing chamber 27 with, for example, a gypsum board, a metal plate coated with a high-emissivity paint on the indoor side surface, or another radiant panel. Alternatively, the radiation effect caused by the heating contributes to the uniformization of the heat distribution from the window side of the room to the back side of the room.

The front bypass filter 41 and the side bypass filter 42, together with an air filter attached to the air outlet 20 of the room air conditioner 18, have a function of removing the return air and a function of maintaining the inside of the air mixing chamber 27 at a negative pressure.

The cooling / heating airflow guide plate 50 has a function as a guide vane for blowing the heating airflow from the cross fan 28 vertically downward. In some cases, the cooling air flow from the cross fan 28 can be freely angled within a range of about 45 ° below horizontal to serve as a guide vane to blow out.

FIG. 10 shows a second embodiment of the present invention. This second
The example differs from the first example in that the arrangement position of the cross fan 28 is changed and the configuration of the air mixing chamber 27a is slightly changed.

That is, the air mixing chamber 27a in the second example is provided with a hinge 51 from one end 11a of the ceiling panel 11 in front of the room air conditioner 18.
A chamber configuration rotation plate 52 is provided rotatably between a vertical position and a horizontal position. In addition, the lower end of the chamber-constituting rotating plate 52 that is rotated to the vertical position, and the window upper wall 16.
And a lower horizontal plate 53 for chamber configuration, and an air-conditioned air diffusion plate 55 having a plurality of communication ports 54 is provided in the middle of the lower horizontal plate 53 for chamber configuration. A cross fan 28 is provided below the lower horizontal plate 53 for forming a chamber so as to communicate with the chamber. In addition, a heating air flow guide plate 56 is provided at the lower end of the chamber configuration rotating plate 52 by a hinge 57 so as to be rotatable in front of the cross fan outlet 28b. Since other configurations are the same as those of the first example, the same elements as those of the first example are denoted by the same reference numerals, and the description thereof will not be repeated.

In the second example, the mixed air of the room conditioned air and the room air is supplied only to the intermediate suction port 25 of the ceiling panel 11 or only to the tip suction port 26, or to both the middle suction port 25 and the tip suction port 26. At the time of a suction port or heating, in addition to the suction ports 25 and 26 described above, suction is performed from a rear end suction port 25a. Then, a part of the return air returning through the ceiling space 12 is sucked through the inlet 21 of the room air conditioner 18 and is blown out from the outlet 20. Another part of the return air passes through the bypass air passage 40, and is introduced into the air mixing chamber 27a through a front bypass air filter 41 (a side bypass filter is not shown). Then, the return air and the conditioned air are mixed in the air mixing chamber 27 a and are sucked into the cross fan 28. At this time, the mixing air is diffused by the conditioned air diffusion plate 55, and the wind is accelerated by the cross fan 28 to be blown out into the room.

In the second example, the cross fan 28 is located at a position lower than the ceiling panel 11. For this reason, in order to generate a jet flow attached to the ceiling of the corander in the cold air blown from the cross fan 28, the cross fan 28
8b is installed so as to be able to swing within a range of about 30 ° to 45 ° above the horizontal plane.

Further, in the second example, the chamber-constituting rotary plate 52 has a function of opening and closing an inspection port for inspecting a filter of a room air conditioner, a bypass air filter, and the like. Rotating plate 5
Reference numeral 2 designates a horizontal position at a position indicated by a two-dot chain line in the figure.

In the second example, as in the first example, the combination of the room air conditioner 18, the air mixing chamber 27a, and the cross fan 28 enables comfortable cooling and heating of the room.

In the first and second examples, the suction ports 25 and 26 are provided on the ceiling surface, so that the cooling adhering jet can be prevented from dropping into the living area.

[0038]

As described above, the air conditioner of the present invention provides comfortable convection / radiation combined cooling / heating using a jet flow attached to the ceiling of a corander which cannot be achieved by a wall-mounted room air conditioner alone. The combination of a fan and an air mixing chamber makes it possible at low cost.

[Brief description of the drawings]

FIG. 1 is an overall sectional explanatory view of a state in which an air conditioner according to a first example of the present invention is installed in a room.

FIG. 2 is an enlarged view showing a main part of FIG. 1 and is a view cut along line AA of FIG. 6;

FIG. 3 is a view cut along a line BB in FIG. 6;

FIG. 4 is a schematic perspective view of an air conditioner according to the present invention.

FIG. 5 is an enlarged cutaway perspective view of a main part of the air conditioner of the present invention.

FIG. 6 is a cross-sectional plan view of the room air conditioner in FIG. 2 at an upper position.

FIG. 7 is a cross-sectional plan view at a position above a bypass air filter in FIG. 2;

8 is a cross-sectional plan view of the air mixing chamber in FIG. 2 at a position above an opening / closing plate.

FIG. 9 is a flowchart showing the operation of the air conditioner of the present invention.

FIG. 10 is an explanatory sectional view showing a state where an air conditioner according to a second example of the present invention is installed in a room.

FIG. 11 is a sectional view of a conventional air conditioner.

FIG. 12 is a cross-sectional view of the air conditioner of FIG. 11 installed in a room.

[Explanation of symbols]

1 Panel unit box 2 ceiling boards 2a Ceiling surface 3 Vane mechanism 4 outlet 5 Duct in ceiling 6 indoors 7 Ceiling slab 8 Hanging bracket 10 Ceiling edge 11 Ceiling panels 12 Ceiling pocket space 13 Partition wall 14 rooms 15 windows 16 Window upper wall 17 Mounting bracket 18 room air conditioner 20 Room air conditioner outlet 21 Room air conditioner inlet 22 refrigerant pipe 23 Drain pipe 24 outdoor units 25 Intermediate suction port 25a Rear end suction port 26 Tip suction port 27, 27a, 27b mixing chamber 28 Cross Juan 28a Cross fan casing 28b Cross fan outlet 30 curtains 31 curtain box 32 Lower chamber component plate 33 Chamber main body casing 34 Inspection port 35 Hinge 36 Closing plate 37 Upper horizontal part 38 Vertical part 38a Chamber configuration vertical plate 39 Cross fan body 40 Bypass air passage 41 Front bypass filter 42 Side bypass filter 43 Ceiling opening 44 Hinge 45 Outside air intake 46 Guide Rail 47 Horizontal plate member 48 Air-conditioning air diffuser 49 Hinge 50 Heating air flow guide plate 51 Hinge 52 Rotating plate for chamber configuration 53 Lower horizontal plate for chamber configuration 54 communication port 55 Air-conditioned air diffuser 56 Heating air flow guide plate 57 Hinge 58 Suction port for return chamber 59 Return chamber 60 Baffle 61 Hinge 62 mixing room

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-6-137611 (JP, A) JP-A-62-46134 (JP, A) JP-A-4-281128 (JP, A) JP-A-6-137128 249460 (JP, A) JP-A-3-31622 (JP, A) JP-A-7-26615 (JP, U) JP-A-55-64027 (JP, U) JP-B-47-17981 (JP, Y1) (58) Field surveyed (Int. Cl. ⁷ , DB name) F24F 1/00-1/02

Claims (3)

(57) [Claims] In an air conditioner, a ceiling panel having an air inlet for discharging room air into a ceiling space and a window upper wall are provided, and a part of return air from the space is sucked from the suction hole. A wall-mounted room air conditioner, a bypass air filter in the middle, a bypass air passage through which another part of the return air passes, and air from the room air conditioner and the bypass air passage to be sucked, mixed, and temperature-controlled. An air-conditioning apparatus comprising: an air mixing chamber to be mixed; and a cross fan wider than the width of the room air conditioner for sucking air mixed in the air mixing chamber and blowing the air into the room. 2. When the air blown from the room air conditioner is cold air, the cross fan blows the cold air at a predetermined angle downward at the time of starting the cooling and a jet flow attached to the ceiling of the corander after the cooling is started. The air conditioner according to claim 1, further comprising: a blowing direction control mechanism that blows cool air in parallel with the ceiling surface to generate the air. 3. The cross fan has a blowing direction control mechanism for blowing out the warm air vertically downward when the air blown from the room air conditioner is a warm air. An air conditioner according to claim 1.