JP4533664B2 - Air outlet device - Google Patents

Description

  TECHNICAL FIELD The present invention relates to an air outlet device that is disposed facing an air conditioning target space, and in particular, a pan-carver type that can blow supplied conditioned air in a desired direction in the air conditioning target space while preventing condensation on the surface. The present invention relates to an air outlet apparatus.

  In air conditioning equipment, blowout devices that blow conditioned air sent through a duct into an indoor space serving as an air conditioning target space generally have a blowing direction variable in addition to a fixed blowing direction. in use. As a mechanism for changing the blowing direction in such an outlet device, there is a mechanism that changes the angle of a vane-shaped vane that guides the airflow inside the outlet device, or a mechanism that adjusts the blowing direction by adjusting other movable guide parts. is there. Among these, for local air conditioning applications, a pan-karuba type air outlet that can blow air conditioned air in a desired direction has been generally used. As an example of the pan-carba type device, there is one described in JP-A-8-128715, which is shown in FIG. FIG. 3 is a side view of a conventional air outlet device.

In FIG. 3, the conventional air outlet device 100 is configured to include a radiant flow outlet 110 installed on the ceiling 50 and a pan-culobar type axial outlet 120 attached integrally to the tip. The axial flow outlet 120 is provided with a curved ring-shaped holding member 122 circumscribing to the outer periphery of a substantially spherical shell-shaped pan culver body 121, and the ring-shaped holding member 122 serves as a radial flow outlet 110. It is fixed on the side. The pan calver main body 121 is a mechanism that can freely rotate while being held by the ring-shaped holding member 122, and can arbitrarily change the blowing direction of the conditioned air blown from the blow outlet 121a of the pan calver main body 121.
JP-A-8-128715

  The conventional air outlet device is configured as described above. In the conventional pan culver-type air outlet portion described in Patent Document 1, a spherical shell-like shape is formed by the cold air blown through the inside during cooling. When the pan culver body 121 is directly cooled and used in an indoor space such as a kitchen where the temperature and humidity are high, the pan karuba body 121 in which warmer air in the room reaching the periphery of the blowout device is cooled by the induction of the blowing airflow. There was a problem that not only dew condensation was caused by contact with each part of the outer surface, but also the resulting dew condensation water dropped downward from the outlet surface.

  The present invention has been made in order to solve the above-described problems, and suppresses the cooling of the entire outlet by the contact of the airflow to maintain the outer surface temperature of the outlet, so that dew condensation occurs even when warmer air in the air conditioning target space comes into contact. An object of the present invention is to provide a blow-out device having a pan-caruba shape that is less likely to cause the occurrence of a blow.

The air outlet apparatus according to the present invention is formed of a substantially spherical shell having a cylindrical protrusion at a predetermined position on the outer periphery, and is supplied with air-conditioning gas at a position substantially opposite to the cylindrical protrusion. An air outlet main body in which an opening is formed and the tip of the cylindrical protrusion is the other air opening that blows out the gas to the air-conditioning target space, and the center of rotation of the sphere center of the air outlet main body A blow-out device of a pan-carba type having at least a support frame attached to a ceiling or a wall facing the air-conditioning target space while rotatably supporting the air outlet body within a predetermined angle range. An inner cylinder of a substantially cylindrical body that is formed in a shape in which each opening at one end and the other end is substantially inscribed in the opening portion and the cylindrical projecting portion, and inserted into the outlet body, and at least the outlet body Between one opening portion and one end of the inner cylinder, Beauty and a heat insulating material is interposed between the cylindrical protrusion inner surface and the inner tube the other end of the air outlet body, the inner cylinder and the other end, the one from the cylindrical protrusion tip of the outlet body The front end portion of the heat insulating material interposed between the inner surface of the cylindrical projection and the other end of the inner cylinder is arranged so as to recede by a predetermined dimension near the opening portion, and the other end of the inner cylinder and the cylindrical projection It is located in the middle of the tip .

  As described above, in the present invention, the inner cylinder is disposed inside the substantially spherical shell-shaped outlet body, and the heat insulating material is interposed between the adjacent end portions of the inner cylinder and the outer outlet body, respectively. An inner cylinder that is cooled in contact with the air-conditioning gas having a low temperature during cooling by generating a heat insulating layer including a hollow portion between the inner cylinder and the outlet body without directly contacting the cylinder and the outlet body. The heat transfer between the air outlet and the outer air outlet body is suppressed, and the temperature drop of the air outlet body is suppressed, and even if the attracted room air contacts the outer surface of the air outlet body, condensation does not occur. An air-conditioning condition peculiar to a pan-carver shape in which the blowing direction of the airflow can be appropriately changed can be obtained without dew condensation water falling from the surface of the outlet.

Also, with respect to the cylindrical projecting portion tip position which is the side from which the airflow of the outlet body is blown out, the tip position of the inner cylinder located inside thereof is set back, and the tip of the heat insulating material is further forward of the inner cylinder. The room air that is attracted to the vicinity of the end of the cylindrical protrusion by the air flow that is blown out is hardly generated on the outside of the blowing air flow path from the end of the inner cylinder to the end of the cylindrical protrusion. It is difficult to reach the inner cylinder tip position, and the contact between the room air and the inner cylinder can be suppressed, and it is possible to prevent the occurrence of condensation due to the contact between the tip of the inner cylinder whose temperature is lowered during cooling and the warm room air.

  Moreover, the blower outlet apparatus which concerns on this invention is the said heat insulating material covering and arrange | positioning over each whole surface of the internal peripheral surface of the said blower outlet main body, and the outer peripheral surface of the said inner cylinder as needed.

  As described above, in the present invention, the heat insulating material is disposed also on the outer peripheral surface of the inner cylinder surrounding the hollow portion between the outlet body and the inner cylinder and the inner peripheral surface of the outlet body, and the hollow between the inner cylinder and the outlet body is provided. By further suppressing the heat transfer through the part, it is possible to reliably suppress the temperature drop of the outlet body during cooling and to reliably prevent dew condensation on the outer surface of the outlet body, and the ability to suppress heat transfer has increased. Therefore, it is possible to blow out conditioned air at a lower temperature within a range in which condensation does not occur, and the air conditioning capability can be improved.

  Hereinafter, an air outlet apparatus according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG. 1 is a side view and a bottom view of the outlet device according to the present embodiment, and FIG. 2 is a schematic sectional view of the outlet device according to the present embodiment.

  In each of the drawings, the air outlet device 1 according to the present embodiment is provided with one opening portion to which conditioned air as air conditioning gas is supplied and another opening for directing the conditioned air toward the indoor space to be air conditioned. A substantially spherical shell-shaped outlet body 10 having a portion, and a support frame 20 attached to the ceiling 50 facing the indoor space while rotatably supporting the outlet body 10 around the center of the sphere. The inner cylinder 30 is a substantially cylindrical body that is inserted and disposed inside the air outlet body 10, and the heat insulating material 40 that is disposed between the inner surface of the air outlet body 10 and the outer surface of the inner cylinder 30.

  The blower outlet body 10 is formed of a substantially spherical shell-like body having a cylindrical tubular projecting portion 11 at a predetermined position on the outer periphery, and conditioned air is supplied to a position substantially opposed to the tubular projecting portion 11. An opening is formed, and the tip of the cylindrical protrusion 11 is formed as another opening that blows conditioned air into the indoor space, and is supported by the support frame 20 so as to be rotatable within a predetermined angle range. It is a configuration. This blower outlet main body 10 is connected to a duct 51 in the ceiling 50, and has a mechanism in which conditioned air is supplied to one opening portion.

  The support frame 20 is a substantially ring-shaped body having a curved inner peripheral surface that contacts the spherical outer peripheral surface of the blower outlet body 10, and one opening portion of the blower outlet body 10 has a space in the ceiling. It is the structure fixed to the ceiling 50 in the state which faces. In the mounted state of the support frame 20, the surface portion facing the duct 51 is subjected to heat insulation processing such as flocking or sticking of a heat insulating material, so that heat transfer through the support frame 20 hardly occurs. .

  The inner cylinder 30 has a shape in which each opening at one end and the other end is substantially inscribed in one opening portion of the outlet body 10 and the cylindrical protrusion 11, that is, inside the opening portion of the outlet body 10. A tapered cylindrical portion 31 whose inner diameter is gradually reduced starting from the one end opening along which it extends, and a cylindrical portion 32 extending straight from the end of the tapered cylindrical portion 31 along the inner surface of the cylindrical protruding portion 11. It is the structure formed as a cylindrical body. The other end part which becomes the indoor space side front end part of the inner cylinder 30 is disposed so as to recede by a predetermined dimension closer to one opening part than the front end of the cylindrical projection part 11 of the outlet body 10.

  The heat insulating material 40 has a substantially sheet shape, and is between one opening portion of the outlet body 10 and one end portion of the inner cylinder 30, and the inner surface of the cylindrical protrusion 11 of the outlet body 10 and the other end portion of the inner cylinder 30. Between the air outlet body 10 and the inner cylinder 30 so as to cover all of the inner peripheral surface of the remaining air outlet body 10 and the outer peripheral surface of the inner cylinder 30. It is to suppress. As the heat insulating material 40, for example, a polyethylene foam sheet having a thickness of about 5 mm can be used.

  Of the heat insulating material 40, the end on the indoor space side in the portion interposed between the inner surface of the cylindrical protrusion 11 and the other end of the inner cylinder 30 is the other end of the inner cylinder 30 and the tip of the cylindrical protrusion 11. The flow path of the conditioned air is shaped to expand stepwise from the other end of the inner cylinder 30 to the tip of the cylindrical protrusion 11.

  Next, the air flow blowing operation in the air outlet device based on the above configuration will be described. The conditioned air sent from the duct 51 enters the inner cylinder 30 in the outlet body 10 from one opening portion of the outlet body 10, and travels toward the indoor space through the inner cylinder 30. The conditioned air is guided to the indoor space side along the inner cylinder 30 and blows out into the indoor space through the opening at the tip of the inner cylinder 30 and the opening of the cylindrical protrusion 11 of the outlet body 10. The air current of the conditioned air is directed in a desired direction toward the cylindrical protrusion 11.

  The air flow of conditioned air blown into the indoor space attracts indoor air, but not only the front of the cylindrical projection 11 but also the air on the side and rear of the cylindrical projection 11 is strongly attracted to the vicinity of the outlet body 10. Will be. Although the indoor air is present in the vicinity of the air outlet body 10 by this attraction, the heat insulating material 40 and the hollow portion are interposed between the air outlet body 10 and the inner cylinder 30 so that the air is in a heat insulating state. There is almost no heat transfer between the outlet main body 10 and the inner cylinder 30, and in the case of cooling, even if the inner cylinder 30 is cooled by contact with cold conditioned air, the temperature of the outlet main body 10 does not decrease. In this way, the outlet body 10 can maintain a temperature state substantially equal to the room air temperature, and even when warm indoor air is in contact with the conditioned air, no condensation or the like occurs on the surface of the outlet body 10.

  The attracted room air reaches the tip of the cylindrical protrusion 11 of the outlet body 10, but the tip of the inner cylinder 30 is retracted from the tip of the cylindrical protrusion 11 of the outlet body 10. Between the front end of the inner cylinder 30 and the front end of the cylindrical protrusion 11, there is a continuous flow of conditioned air that is blown out, and there is no space for air to enter from the outside. Even when the inner cylinder 30 reaches the position of the inner cylinder 30 and does not come into contact therewith, no condensation occurs on the front surface of the inner cylinder 30 even when the inner cylinder 30 is cooled by contact with cooled conditioned air.

  As described above, in the air outlet device according to the present embodiment, the inner cylinder 30 is disposed inside the substantially spherical shell-shaped air outlet body 10 and the inner cylinder 30 and the outer air outlet body 10 are close to each other. Since the heat insulating material 40 is interposed between the both end portions, and the inner cylinder 30 and the outlet body 10 are not in direct contact with each other, a heat insulating layer including a hollow portion is formed between the inner cylinder 30 and the outlet body 10. The heat transfer between the inner inner cylinder 30 cooled in contact with the low conditioned air and the outer outlet body 10 is suppressed, so that the temperature of the outlet body 10 can be prevented from decreasing. Contact with the outer surface of the main body 10 does not lead to the formation of dew condensation, and an air-conditioning condition peculiar to the pan calver shape in which the blowing direction of the airflow can be appropriately changed without the dew condensation water falling from the surface of the outlet is obtained. .

  In addition, in the blower outlet apparatus which concerns on the said embodiment, although it has set it as the structure which arrange | positions all the heat insulating materials 40 between the blower outlet main body 10 and the inner cylinder 30, it is not restricted to this, The blower outlet main body 10 and an inner cylinder 30 are close to each other, that is, between one opening portion of the outlet body 10 and one end of the inner cylinder 30, and between the inner surface of the cylindrical protrusion 11 of the outlet body 10 and the other end of the inner cylinder 30. It can also be set as the structure which arrange | positions the heat insulating material 40 only in each case, and while using the heat insulation effect which is inferior to the case where it arrange | positions to the whole, use of a heat insulating material can be suppressed to a necessary minimum and cost rise can be suppressed. .

  Moreover, in the blower outlet apparatus which concerns on the said embodiment, although it has set as the structure which does not provide in particular in the surface which contacts the conditioned air and room air of the blower outlet main body 10 and the inner cylinder 30, it is not restricted to this, A blower outlet The surface of the main body 10 and the inner cylinder 30 can also be subjected to flocking processing, so that noise such as wind noise can be absorbed, or heat insulation performance against air can be enhanced to further prevent condensation. .

It is the side view and bottom view of the blower outlet apparatus which concerns on one embodiment of this invention. It is a schematic sectional drawing of the blower outlet apparatus which concerns on one embodiment of this invention. It is a side view of the conventional blower outlet apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,100 Air outlet apparatus 10 Air outlet body 11 Cylindrical protrusion part 20 Support frame 30 Inner cylinder 31 Tapered cylindrical part 32 Cylindrical part 40 Heat insulating material 50 Ceiling 51 Duct 110 Radial flow blowing part 120 Axial flow blowing part 121 Pan culver main body 122 Ring-shaped holding member 121a outlet

Claims (2)

It is formed of a substantially spherical shell-like body having a cylindrical protrusion at a predetermined position on the outer periphery, and is provided with a single opening to be supplied with air-conditioning gas at a position substantially opposite to the cylindrical protrusion. An air outlet main body in which the tip of the protruding portion is the other opening that blows out the gas to the air-conditioning target space, and the air outlet main body within a predetermined angle range with the sphere center of the air outlet main body as the center of rotation. In a pan-carver-shaped air outlet device comprising at least a support frame attached to a ceiling or wall facing the air conditioning target space while being rotatably supported,
An inner cylinder of a substantially cylindrical body which is shaped to substantially inscribe each opening at one end and the other end of the one opening portion and the cylindrical projecting portion of the outlet body, and is inserted into the outlet body; ,
A heat insulating material interposed between at least one opening portion of the outlet body and the one end of the inner cylinder, and between the inner surface of the cylindrical protrusion of the outlet body and the other end of the inner cylinder ;
The other end of the inner cylinder is disposed with a predetermined dimension retracted closer to one opening portion than the tip of the cylindrical protrusion of the outlet body, and is interposed between the inner surface of the cylindrical protrusion and the other end of the inner cylinder. The blowout device characterized by that the front-end | tip part of the said heat insulating material provided is located in the middle of an inner cylinder other end and a cylindrical protrusion part front-end | tip . In the blower outlet device according to claim 1,
The air outlet device is characterized in that the heat insulating material is covered and disposed over the entire inner peripheral surface of the air outlet body and the outer peripheral surface of the inner cylinder .

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