JP6662600B2 - Indoor unit - Google Patents

Description

  The present invention relates to an indoor unit having an air outlet for blowing out an air-conditioned airflow.

  An indoor unit that air-conditions air sucked from an air inlet and blows out the air from an air outlet, and covers an upper side of the air blown out from the air outlet, and has a guide surface formed so as to become higher upward as going forward. An indoor unit having a surface extending rearward from a front end of a guide surface is known (for example, see Patent Document 1). In such an indoor unit, the air blown out from the outlet is directed upward along the guide surface due to the Coanda effect. Since a surface extending rearward from the front end of the guide surface is formed, air flowing along the guide surface separates from the front surface of the indoor unit at the front end of the guide surface and flows toward the ceiling in the room.

JP-A-2003-232559

  In the indoor unit as described above, at the front end of the guide surface, the blown airflow from the air outlet and the indoor air flowing downward from above along the front surface of the indoor unit above the guide surface are mixed. Therefore, during the cooling operation, the blown airflow (cool air) and the room air (warm air) are mixed, and dew condensation occurs at the front end of the guide surface. Therefore, a problem arises in that dew condensation water drops and soils the floor and household goods of the house.

  Then, this invention is made in order to solve the above subject, and an object of this invention is to provide the indoor unit which can suppress that dew condensation occurs on the surface of a structure.

An indoor unit according to a first aspect of the present invention includes an air outlet for blowing out an air-conditioned airflow, a first surface disposed in front of the air outlet, and extending horizontally or obliquely upward, and above the first surface. A second surface having a surface that is formed so as to be more upward as it goes rearward, a first separation portion that separates the blown airflow blown from the outlet from the first surface, includes a second peeling unit for peeling the indoor air flowing down along the second surface from said second surface, and a connecting portion connecting the second stripping unit and the first peeling unit, wherein the first The peeling portion is located at a front end of the first surface, and the second peeling portion is located at a lower end of a surface of the second surface formed so as to be more rearward toward the rear. The connecting portion is configured such that the blown airflow separated from the first surface in the first separating portion and the blown airflow; The room air separated from the second surface in the separation unit is arranged inside the extension surface of the first surface and the extension surface of the second surface so that the room air separated from the connection unit is mixed at a position away from the connection unit. It is characterized by being.

  In this indoor unit, the blown airflow and the indoor air mix after being separated from the first surface and the second surface, respectively. Therefore, it is possible to suppress the occurrence of dew condensation on the structure of the indoor unit by mixing the cool air blown out from the outlet and the warm air of the indoor air during the cooling operation.

An indoor unit according to a second aspect of the present invention is the indoor unit according to the first aspect, wherein the first peeling portion is located at a front end of the first surface, and the second peeling portion is located at the second end of the second surface. It is characterized in that it is located at the lower end of a surface formed so that it goes upward as it goes backward in the surface. An indoor unit according to a third aspect of the present invention is the indoor unit according to the first or second aspect , wherein the connection portion is configured by one plane or one curved surface curved backward. .

  In this indoor unit, it is possible to reliably suppress the occurrence of condensation on the structure of the indoor unit.

An indoor unit according to a fourth invention is the indoor unit according to any one of the first to third inventions, wherein a distance A from the first peeling portion to the second peeling portion in the connection portion is 5 mm or more, and , 20 mm or less, and the angle θ1 between the tangent plane of the first surface at the end of the first peeling portion and the tangent plane of the connecting portion at the end of the first peeling portion is 30 ° or more, and , 90 ° or less, and the angle θ2 between the tangent plane of the second surface at the end of the second peeling portion and the tangent plane of the connecting portion at the end of the second peeling portion is 30 ° or more, In addition, it is characterized by being 90 ° or less.

  In this indoor unit, the blown airflow and the indoor air are surely separated at the first separation portion and the second separation portion, and the separated blown airflow and the indoor air are surely merged at a position separated from the structure of the indoor unit. be able to. Therefore, it is possible to more reliably suppress the occurrence of condensation on the structure of the indoor unit.

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

  In the first invention, the blown airflow and the room air mix after being separated from the first surface and the second surface, respectively. Therefore, it is possible to suppress the occurrence of dew condensation on the structure of the indoor unit by mixing the cool air blown out from the outlet and the warm air of the indoor air during the cooling operation.

According to the third aspect , it is possible to reliably suppress the occurrence of dew condensation on the structure of the indoor unit.

In the fourth invention, the blown airflow and the indoor air are surely separated at the first separating portion and the second separating portion, and the separated blown airflow and the indoor air are surely merged at a position away from the structure of the indoor unit. Can be done. Therefore, it is possible to more reliably suppress the occurrence of condensation on the structure of the indoor unit.

It is the perspective view of the indoor unit concerning embodiment of this invention, (a) is the figure seen from diagonally upward, (b) is the figure seen from diagonally downward. FIG. 2 is a cross-sectional view of the indoor unit of FIG. 1. FIG. 3 is an enlarged view of a lower end portion of the front panel shown in FIG. 2. It is a figure showing the lower end part of the front panel in the indoor unit concerning a modification of the present invention.

  An embodiment of the present invention will be described below with reference to FIGS.

  As shown in FIGS. 1 (a) and 1 (b), the indoor unit 1 of the present embodiment has an elongated shape in one direction as a whole, and is installed on an indoor wall surface so that its longitudinal direction is horizontal. It is something that can be done. The indoor unit 1 forms an air conditioner together with an outdoor unit (not shown), and performs indoor cooling and heating. In the following description, the direction protruding from the wall to which the indoor unit 1 is attached is referred to as “front”, and the opposite direction is referred to as “rear”. The longitudinal direction of the indoor unit 1 is simply referred to as “longitudinal direction”.

  As shown in FIG. 2, the indoor unit 1 mainly includes a casing 2, a heat exchanger 3, an indoor fan 4, a filter 5, and two horizontal blades 6a and 6b.

  The casing 2 has a substantially rectangular parallelepiped grill 21 and a front panel 22 that covers the front of the grill 21. A suction port 21 a is formed on the upper surface of the casing 2. As shown in FIG. 1A, the suction port 21a is formed over the grill 21 and the front panel 22. An outlet 21 b is formed on the lower surface of the grill 21. As shown in FIG. 1B, the outlet 21b is a rectangular opening that is long in the longitudinal direction.

  The heat exchanger 3, the indoor fan 4, and the filter 5 are disposed inside the grill 21. The indoor fan 4 is configured to extend in the longitudinal direction, suck air into the casing 2 via the suction port 21a, and blow out the air in the casing 2 from the outlet 21b. The heat exchanger 3 is formed in an inverted V-shape in which both ends are bent downward in a side view, and is disposed so as to surround the upper part and the front part of the indoor fan 4. In the heat exchanger 3, heat exchange is performed with the passing air. Further, a filter 5 is disposed above and in front of the heat exchanger 3. The filter 5 removes dust contained in the air flowing toward the heat exchanger 3.

  The two horizontal blades 6a, 6b are arranged at the outlet 21b. The horizontal blades 6a and 6b are provided to change the vertical direction of the airflow blown out from the outlet 21b and to open and close the outlet 21b. Each of the horizontal blades 6a and 6b is a rectangular plate member that is long in the longitudinal direction. The horizontal blade 6a is arranged at a front portion inside the outlet 21b, and the horizontal blade 6b is arranged at a rear portion inside the outlet 21b.

  The front panel 22 covers the front surface of the grill 21 as described above, and its upper end forms a part of the inlet 21a, and its lower end is located near the front end of the outlet 21b. The front panel 22 is a surface facing forward, and has a front surface 22a extending downward from near the front end of the suction port 21a to near the lower end of the front panel 22. At the lower end of the front panel 22, a first surface 23 is disposed in front of the air outlet 21b and extends obliquely upward, and is disposed above the first surface 23. Are formed, and a planar connection portion 25 connecting the first surface 23 and the second surface 24 is provided. The first surface 23 and the second surface 24 are curved surfaces that are convex downward.

  As shown by arrows in FIG. 2, the blown airflow blown out from the outlet 21 b flows along the first surface 23 and separates from the first surface 23 at the front end of the first surface 23. That is, the front end of the first surface 23 functions as a peeling portion 23a from which the airflow blown out from the outlet 21b is peeled from the front panel 22. The room air flowing downward along the front surface 22 a of the front panel 22 and the second surface 24 is separated from the second surface 24 at the lower end of the second surface 24. That is, the lower end of the second surface 24 functions as a peeling portion 24 a from which room air peels from the front panel 22. And the connection part 25 has connected the separation part 23a of the blowing airflow, and the separation part 24a of room air.

  The blown airflow separated from the front panel 22 at the separation unit 23a and the room air separated from the front panel 22 at the separation unit 24a are mixed at a position away from the front panel in front of the front panel 22. In addition, the connection part 25 is arrange | positioned inside the extension surface of the 1st surface 23 shown by the broken line in FIG. 2, and the extension surface of the 2nd surface.

  The distance A (see FIG. 3) from the peeling part 23a to the peeling part 24a in the connection part 25 is 10 mm. The angle θ1 (see FIG. 3) between the tangent plane P1 at the end of the first surface 23 on the separation portion 23a side and the surface of the connection portion 25 is 60 °. Further, an angle θ2 (see FIG. 3) between the tangent plane P2 at the end of the second surface 24 on the peeling portion 24a side and the surface of the connection portion 25 is 60 °.

Next, the operation of the indoor unit 1 will be described.
By driving the indoor fan 4, air is sucked into the casing 2 from the suction port 21a. After the dust sucked into the casing 2 is removed by the filter 5, the air passes through the heat exchanger 3 and undergoes heat exchange. After passing through the indoor fan 4, the air flows along the horizontal blades 6a, 6b, and the air-conditioned air is blown out from the outlet 21b. The blown airflow blown out from the blowout port 21b flows along the first surface 23 extending obliquely upward due to the Coanda effect, and then at the separated portion 23a at the end of the first surface 23 (the front panel 22). Peel from The blown airflow separated from the front panel 22 mixes with the room air separated from the second surface 24 (the front panel 22) at a position separated from the front panel 22 at the separation portion 24a, and then heads toward the ceiling.

  As described above, in the indoor unit 1 of the present embodiment, at the lower end of the front panel 22, the first surface 23 that is disposed in front of the outlet 21 b and extends obliquely upward, and is disposed above the first surface 23. Along the second surface 24, the second surface 24 is formed so as to become higher upward as it goes backward, the separation portion 23 a that separates the blown airflow blown out from the outlet 21 b from the first surface 23, and the second surface 24. A separating portion 24a for separating the flowing indoor air from the second surface 24 and a connecting portion 25 connecting the separating portion 23a and the separating portion 24a are provided. Therefore, the blown airflow and the room air mix after being separated from the first surface 23 and the second surface 24, respectively. Therefore, when the cool air blown from the outlet 21b and the warm air of the indoor air are mixed during the cooling operation, it is possible to suppress the occurrence of dew condensation on the structure of the indoor unit 1.

  Further, in the indoor unit 1 of the present embodiment, the connection portion 25 is disposed inside the extension surface of the first surface 23 and the extension surface of the second surface. Therefore, the occurrence of dew condensation on the structure of the indoor unit 1 can be reliably suppressed.

  Further, in the indoor unit 1 of the present embodiment, the distance A from the peeling part 23a to the peeling part 24a in the connection part 25 is 10 mm. Further, the angle θ1 between the tangent plane P1 at the end of the first surface 23 on the peeling portion 23a side and the surface of the connection portion 25, and the angle θ1 between the tangential plane P2 at the end of the second surface 24 on the peeling portion 24a side and the connection portion 25 The angle θ2 with the plane is 60 °. Therefore, the blowout airflow and the room air are reliably separated from the front panel 2 at the separation portions 23a and 24a, and the blowout airflow and the room air separated from the front panel 2 are surely merged at a position distant from the front panel 2. Can be. Therefore, the occurrence of dew condensation on the structure of the indoor unit 1 can be suppressed more reliably.

  As described above, the embodiments of the present invention have been described with reference to the drawings. However, it should be considered that the specific configuration is not limited to these embodiments. The scope of the present invention is defined by the terms of the claims, rather than the description of the embodiments, and further includes all modifications within the scope and meaning equivalent to the terms of the claims.

  For example, in the above-described embodiment, the case where the connecting portion 25 is a plane is described, but the shape of the connecting portion 25 is not limited to this. That is, as shown in FIG. 4, in the front panel 122 according to a modified example of the above-described embodiment, the connection portion 125 is a curved surface curved backward. In this case, the angle θ1 is the angle between the tangent plane P1 at the end of the first surface 123 on the peeling portion 123a side and the tangential plane P3 at the end of the connecting portion 125 on the peeling portion 123a side, and the angle θ2 is the second angle. The angle formed between the tangent plane P2 at the end of the surface 124 on the separation part 124a side and the tangent plane P4 on the end of the connection part 125 on the separation part 124a side.

  In addition, in the above-described embodiment, the case where the first surface 23 extends obliquely upward and has a curved surface that is convex downward has been described, but the present invention is not limited to this. That is, for example, the first surface 23 may be a surface extending horizontally. Further, the first surface 23 may be a flat surface.

  Further, in the above-described embodiment, the distance A from the peeling portion 23a to the peeling portion 24a in the connecting portion 25 is 10 mm, and the tangential plane P1 at the peeling portion 23a side end of the first surface 23 and the surface of the connecting portion 25 And the angle θ2 between the tangent plane P2 at the end of the second surface 24 on the peeling portion 24a side and the surface of the connecting portion 25 are both 60 °. Not limited. The distance A may be 5 mm or more, and more preferably, 5 mm or more and 20 mm or less. Further, each of the angles θ1 and θ2 may be 90 ° or less, and more preferably, 30 ° or more and 90 ° or less.

  In addition, in the above-described embodiment, the case where the first surface 23, the second surface 24, the peeling portions 23a, 24a, and the connecting portion 25 are provided on the front panel 22 has been described, but the present invention is not limited to this. These may be provided on members other than the front panel 22. In addition, the first surface 23, the second surface 24, and the connecting portion 25 may not be provided on the same member but may be provided on different members.

  The use of the present invention suppresses the occurrence of dew condensation on the surface of a structure.

1 indoor unit 21b outlet 23, 123 first surface 23a, 123a first peeling portion 24, 124 second surface 24a, 124a second peeling portion 25 connecting portion

Claims (3)

An outlet for blowing air-conditioned air,
A first surface disposed in front of the air outlet and extending horizontally or obliquely upward;
A second surface disposed above the first surface, the second surface having a surface that is formed so as to be more rearward;
A first separation unit that separates the blown airflow blown from the blowout port from the first surface;
A second separation unit that separates room air flowing downward along the second surface from the second surface;
A connection unit that connects the first peeling unit and the second peeling unit,
The first peeling unit is located at a front end of the first surface,
The second peeling portion is located at a lower end portion of a surface of the second surface that is formed to be higher as it goes rearward ,
In the connection portion, the blown airflow separated from the first surface in the first separation portion and the room air separated from the second surface in the second separation portion are mixed at a position separated from the connection portion. Thus, the indoor unit is arranged inside the extension surface of the first surface and the extension surface of the second surface. The indoor unit according to claim 1, wherein the connection unit is configured by one plane or one curved surface curved backward. A distance A from the first peeling portion to the second peeling portion in the connecting portion is 5 mm or more and 20 mm or less, and a tangential plane at the first peeling portion side end of the first surface and the connecting portion. An angle θ1 between the tangent plane at the end of the first peeling part and the tangent plane at the end of the second peeling part on the second peeling part is 30 ° or more and 90 ° or less. 3. The indoor unit according to claim 1, wherein an angle θ < b > 2 between the end of the portion and the tangent plane at the end of the second peeling portion side is 30 ° or more and 90 ° or less.

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