JP6477737B2 - Indoor unit - Google Patents

Description

  The present invention relates to an indoor unit including a cross flow fan, for example.

  Conventionally, in an indoor unit of an air conditioner equipped with a cross flow fan, the flow velocity is slow at the outlet end, and there is a problem of surging due to the back flow from the outlet. Therefore, conventionally, by forming a protrusion at the end of the air outlet, backflow from the air outlet is prevented and countermeasures for surging are taken.

Japanese Patent Laid-Open No. 2006-128142

  In conventional indoor units, if the height of the protrusion is increased to improve the surging proof strength, the area of the outlet decreases, and the blowing resistance increases, thereby reducing the air volume and increasing the noise. There is.

  Then, the objective of this invention is providing the indoor unit which can improve a surging proof stress.

An indoor unit according to a first aspect of the present invention forms a casing having an inlet and an outlet, a cross flow fan disposed inside the casing, and an air flow path between the cross flow fan and the outlet. and a stabilizer and rear guider, said stabilizer or the rear guider has a feature in that it has a projecting portion arranged in the longitudinal direction end portion of the air outlet, and a rough surface formed on a part of the protrusion to To do.

In this indoor unit, the stabilizer or rear guider comprises a protruding portion disposed in the longitudinal direction end portion of the air outlet, and a part which is formed on the rough surface of the projecting portion, the outlet end, air blowing Becomes difficult to peel off from the stabilizer or the rear guider. Therefore, since the backflow from the part from which the blown air peels can be prevented, the surging proof strength can be improved.

The indoor unit according to a second aspect of the present invention is the indoor unit according to the first aspect , wherein the projecting portion extends from the stabilizer or the rear guider substantially vertically and from the front end of the extended surface toward the blowing direction. And an inclined surface that is inclined so as to be thin, and the rough surface is disposed on the inclined surface.

  This indoor unit has a rough surface arranged on the inclined surface on the downstream side in the blowing direction of the protruding portion of the stabilizer or the rear guider, and can effectively prevent the blown air from separating from the stabilizer or the rear guider at the outlet end portion. .

Indoor unit according to the third invention, the first or second inventions in Oite, the stabilizer, and having a top Chiara surface.

In this indoor unit, the stabilizer has the rough surface, it is possible to improve the surging strength.

The indoor unit according to a fourth aspect of the present invention is characterized in that, in any one of the first to third aspects, the rough surface is configured by a surface on which irregularities are formed.

  In this indoor unit, when the indoor unit is manufactured, a surface with unevenness is formed as the rough surface, and a rough surface for preventing the blown air from peeling from the stabilizer or the rear guider can be easily formed.

An indoor unit according to a fifth aspect of the present invention is characterized in that, in the fourth aspect , the rough surface is configured by a surface on which a plurality of grooves extending substantially perpendicular to the blowing direction is formed.

  In this indoor unit, the rough surface is configured by a surface in which a plurality of grooves extending substantially perpendicular to the blowing direction is formed, and the blowing air can be effectively prevented from being separated from the stabilizer or the rear guider.

The indoor unit according to a sixth aspect of the present invention is characterized in that, in any one of the first to third aspects, the rough surface is configured by a surface on which a nonwoven fabric is pasted.

  In this indoor unit, after the indoor unit is manufactured, it is possible to easily form a rough surface for preventing the blown air from being peeled off from the stabilizer or the rear guider by forming the surface with a nonwoven fabric as the rough surface.

An indoor unit according to a seventh aspect is characterized in that in any one of the first to sixth aspects, the indoor unit is a ceiling-embedded indoor unit.

  In this indoor unit, the surging proof strength can be effectively improved in the ceiling embedded type indoor unit having a low surging proof strength as compared with the wall-mounted indoor unit.

  As described above, according to the present invention, the following effects can be obtained.

In the first aspect of the invention, the stabilizer or rear guider comprises a protruding portion disposed in the longitudinal direction end portion of the air outlet, and a part which is formed on the rough surface of the projecting portion, the outlet end, balloon Air becomes difficult to peel off from the stabilizer or the rear guider. Therefore, since the backflow from the part from which the blown air peels can be prevented, the surging proof strength can be improved.

In 2nd invention, it has the rough surface arrange | positioned at the inclined surface downstream of the blowing direction of the protrusion part of a stabilizer or a rear guider, and prevents blowing air from peeling from a stabilizer or a rear guideer in an outlet end part effectively it can.

In 3rd invention, a stabilizer has the said rough surface and can improve a surging proof stress.

In 4th invention, when manufacturing an indoor unit, the surface in which the unevenness | corrugation was formed is comprised as a rough surface, and the rough surface for preventing that blowing air peels from a stabilizer or a rear guider can be formed easily. .

In 5th invention, a rough surface is comprised by the surface in which the several groove | channel extended substantially perpendicularly to the blowing direction was formed, and it can prevent effectively that blowing air peels from a stabilizer or a rear guider.

In 6th invention, after manufacturing an indoor unit, it is comprised with the surface by which the nonwoven fabric was affixed as a rough surface, and the rough surface for preventing blowing air from peeling from a stabilizer or a rear guider can be formed easily. .

In the seventh invention, the surging proof strength can be effectively improved in the ceiling embedded indoor unit having a low surging proof strength as compared with the wall-mounted indoor unit.

It is a bottom view of the indoor unit concerning the embodiment of the present invention. It is sectional drawing of the indoor unit shown in FIG. It is a perspective sectional view of the indoor unit shown in FIG. It is a figure which shows the protrusion part formed in the stabilizer shown in FIG.

  Hereinafter, an indoor unit according to an embodiment of the present invention will be described with reference to the drawings.

[Overall configuration of indoor unit]
The indoor unit 1 according to the present embodiment is a ceiling-embedded indoor unit as shown in FIGS. 1 to 3, and includes a casing 2 embedded in the ceiling and a cross flow disposed inside the casing 2. It has a fan 3 and a heat exchanger 4. A lower surface 2a of the casing 2 is disposed on the ceiling, and a suction port 7 and an air outlet 8 are formed on the lower surface 2a.

  Inside the casing 2, an air flow path is formed so that the air sucked from the suction port 7 passes through the heat exchanger 4, flows into the cross flow fan 3, and then blows out from the blowout port 8. The Among the air flow paths, an air flow path between the cross flow fan 3 and the outlet 8 is formed by the stabilizer 5 and the rear guider 6. The air outlet 8 has a rectangular shape extending in the longitudinal direction of the indoor unit 1, and the air outlet 8 is provided with two wind direction plates 8 a extending in the longitudinal direction.

  The stabilizer 5 and the rear guider 6 extend in the longitudinal direction of the air outlet 8 inside the casing 2. Therefore, the stabilizer 5 is a wall surface of the air flow path between the cross flow fan 3 and the outlet 8 on the inner peripheral side of the indoor unit, and the rear guider 6 is an air flow between the cross flow fan 3 and the outlet 8. It is a wall surface on the outer peripheral side of the road.

  In the indoor unit 1 according to the present embodiment, the stabilizer 5 has a protruding portion 5 a disposed at the longitudinal end of the air outlet 8. As shown in FIG. 1, the protruding portion 5 a is a partial region in the longitudinal direction of the air outlet 8, and is disposed in a region a at the right end portion in the longitudinal direction of the air outlet 8. About the longitudinal direction of the blower outlet 8, the cross-sectional shape of the protrusion part 5a is the same.

  As shown in FIG. 4, the protrusion 5 a has an extension surface 5 aa that extends substantially vertically from the stabilizer 5 and a thickness that increases from the tip of the extension surface 5 aa toward the blowing direction in the periphery of the cross flow fan 3. And an inclined surface 5ab which is inclined so as to be thin. A plurality of grooves 5ac extending substantially perpendicular to the blowing direction are formed on the inclined surface 5ab. The plurality of grooves 5ac extend substantially in parallel along the longitudinal direction of the air outlet 8. Therefore, the inclined surface 5ab is formed of a rough surface on which irregularities are formed as a whole. Therefore, the stabilizer 5 has the rough surface arrange | positioned at the longitudinal direction edge part of the blower outlet 8. FIG.

<Characteristics of indoor unit of this embodiment>
In the indoor unit 1 of the present embodiment, the stabilizer 5 has a rough surface arranged at the end portion in the longitudinal direction of the air outlet 8, and the blown air is less likely to be separated from the stabilizer 5 at the end portion of the air outlet 8. Therefore, since the backflow from the part from which the blown air peels can be prevented, the surging proof strength can be improved.

  In the indoor unit 1 of this embodiment, the stabilizer 5 has the protrusion part 5a arrange | positioned at the longitudinal direction edge part of the blower outlet, and the backflow from the part from which the blowing air peeled in the edge part of the blower outlet 8 is effective. Can be prevented.

  In the indoor unit 1 of this embodiment, it has the rough surface arrange | positioned at the inclined surface 5ab of the blowing direction downstream of the protrusion part 5a of the stabilizer 5, and blowing air peels from the stabilizer 5 in the edge part of the blower outlet 8. FIG. Can be effectively prevented.

  In the indoor unit 1 of the present embodiment, the stabilizer 5 has a rough surface arranged at the end in the longitudinal direction of the air outlet 8, and the surging strength can be improved.

  In the indoor unit 1 of the present embodiment, when manufacturing the indoor unit, a rough surface is formed as the rough surface, and the rough surface for preventing the blown air from peeling from the stabilizer 5 can be easily formed. Can be formed.

  In the indoor unit 1 of the present embodiment, as the rough surface, the inclined surface 5ab is configured by a surface in which a plurality of grooves 5ac extending substantially perpendicular to the blowing direction is formed, and it is effective that the blown air is separated from the stabilizer 5. Can be prevented.

  In the indoor unit 1 of the present embodiment, the surging proof strength can be effectively improved in the ceiling embedded type indoor unit having a low surging proof strength as compared with the wall-mounted indoor unit.

  As mentioned above, although embodiment of this invention was described based on drawing, it should be thought that a specific structure is not limited to these embodiment. The scope of the present invention is shown not by the above description of the embodiments but by the scope of claims for patent, and further includes meanings equivalent to the scope of claims for patent and all modifications within the scope.

  In the said embodiment, although the indoor unit which has a rough surface where the stabilizer was arrange | positioned at the longitudinal direction right end part of the blower outlet was demonstrated, the rough surface where the stabilizer was arrange | positioned at least one of the longitudinal direction left end part and right end part of the blower outlet May be an indoor unit. In the above embodiment, the indoor unit having a rough surface with the stabilizer disposed at the longitudinal end of the air outlet has been described, but the rear guider is an indoor unit having a rough surface disposed at the longitudinal end of the air outlet. It's okay.

In the above embodiment, the stabilizer has a protruding portion arranged on the longitudinal ends of the air outlet, but rough surface has been described an indoor unit formed in a part of the protruding portion, is re Agaida, outlet It is an indoor unit which has the protrusion part arrange | positioned at the longitudinal direction edge part of this, and the rough surface was formed in a part of protrusion part.

In the above-described embodiment, the protruding portion has an extending surface that extends substantially perpendicularly from the stabilizer, and an inclined surface that is inclined so that the thickness decreases from the tip of the extending surface toward the blowing direction. plane, a case has been described which is formed on the inclined surface, rough surface may be made of a part of the protrusion, the shape of the protrusions have good have other shapes.

  In the above embodiment, the case where the rough surface is formed by a surface in which a plurality of grooves extending substantially perpendicular to the blowing direction is formed and the unevenness is formed is described. However, the surface on which the unevenness is formed as the rough surface. The configuration of is not limited. In this invention, a rough surface may be comprised by the surface on which the nonwoven fabric was affixed. In this case, after the indoor unit is manufactured, a rough surface can be easily formed by using a surface to which a non-woven fabric is applied as a rough surface to prevent the blown air from peeling from the stabilizer or the rear guider.

  In the above-described embodiment, the ceiling-embedded indoor unit has been described. However, the air flow between the casing having the suction port and the air outlet, the cross flow fan disposed inside the casing, and the cross flow fan and the air outlet is described. It may be a wall-mounted indoor unit or the like having a stabilizer and a rear guider that form a path.

  By using the present invention, the surging proof strength can be improved.

1 indoor unit 2 casing 3 crossflow fan 4 heat exchanger 5 stabilizer 5a projecting portion 5a a extending surface 5ab inclined surface 5ac groove 6 rear guider 7 inlet 8 outlet

Claims (7)

A casing having an inlet and an outlet;
A cross flow fan disposed inside the casing;
A stabilizer and a rear guider that form an air flow path between the cross flow fan and the blowout port,
The stabilizer or the rear guider are indoor unit and having a protrusion disposed in the longitudinal direction end portion of the outlet and a portion which is formed on the rough surface of the projecting portion. The protrusion is
An extending surface extending substantially perpendicularly from the stabilizer or the rear guider;
Having an inclined surface that inclines so that the thickness becomes thinner from the tip of the extended surface toward the blowing direction,
The indoor unit according to claim 1 , wherein the rough surface is disposed on the inclined surface. The stabilizer, the indoor unit according to claim 1 or 2, characterized in that it has a top Chiara surface. The indoor unit according to any one of claims 1 to 3 , wherein the rough surface is configured by a surface on which irregularities are formed. The indoor unit according to claim 4 , wherein the rough surface is configured by a surface on which a plurality of grooves extending substantially perpendicular to the blowing direction is formed. The indoor unit according to any one of claims 1 to 3 , wherein the rough surface includes a surface on which a nonwoven fabric is stuck. Indoor unit according to any one of claims 1 6, characterized in that the ceiling indoor unit.

Images