JP6314949B2 - Indoor unit - Google Patents

Description

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

  An indoor unit that harmonizes the air sucked from the suction port and blows it out from the air outlet, covering the upper side of the air blown out from the air outlet, and formed so as to be higher as it goes forward An indoor unit having a surface extending rearward from the front end of the guide surface is known (see, for example, Patent Document 1). In such an indoor unit, the panel of the indoor unit has a guide surface (Coanda surface), and the air blown out from the air outlet is directed upward along the guide surface by the Coanda effect.

JP 2003-232559 A

  In the indoor unit as described above, during cooling operation, the temperature of the guide surface (Coanda surface) decreases due to the temperature of the cold air flowing through the surface, and the temperature is transmitted to the back surface of the guide surface, so that the back surface of the guide surface in the panel is It becomes low temperature. On the other hand, since warm air exists on the back side of the panel, there arises a problem that condensation occurs on the back surface of the guide surface of the panel.

  Therefore, the present invention has been made to solve the above-described problems, and an object of the present invention is to provide an indoor unit that can suppress the occurrence of condensation on the back surface of the Coanda surface of the panel.

An indoor unit according to a first aspect of the present invention is an air outlet for blowing an air-conditioned air flow, a first surface that is disposed in front of the air outlet and extends horizontally or obliquely upward, and is disposed above the first surface. And a panel having a second surface having a surface facing forward, and a heat insulating member in contact with at least a part of the back surface of the first surface is disposed on the back side of the panel, A first peeling portion for peeling the blown airflow blown from the blowout port from the first surface; a second peeling portion for peeling indoor air flowing downward along the second surface from the second surface; A planar connecting portion connecting the first peeling portion and the second peeling portion, wherein the heat insulating member is a second portion separated from the first portion contacting the back surface of the first surface; Between the panel and the heat insulating member, Disposed serial rear surface side of the first surface and the connecting portion, the heat insulating space extending in the longitudinal direction of the indoor unit is formed.

  In this indoor unit, since the heat insulating member that contacts at least a part of the back surface of the first surface (Coanda surface) is disposed on the back side of the panel, the back surface of the first surface cooled by the blown air flow and the panel By avoiding contact with the warm air existing on the back side, the occurrence of condensation can be suppressed.

In this indoor unit, since a space is formed between the panel and the heat insulating member, by avoiding contact between the back surface of the first surface cooled by the blown airflow and the warm air existing on the back side of the panel, dew condensation Generation can be effectively suppressed.
In this indoor unit, the blown airflow and the room air are mixed 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 from the outlet during the cooling operation and the warm air of the room air.

An indoor unit according to a second aspect of the invention is the indoor unit according to the first aspect of the invention, wherein the heat insulating member has a hollow portion formed therein.

  In this indoor unit, since the heat insulating member has a hollow portion formed therein, dew condensation is avoided by avoiding contact between the back surface of the first surface cooled by the blown airflow and the warm air existing on the back side of the panel. Can be more effectively suppressed.

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

  In the first invention, since the heat insulating member that contacts at least a part of the back surface of the first surface is disposed on the back surface side of the panel, it exists on the back surface of the first surface cooled by the blowing airflow and the back side of the panel. By avoiding contact with warm air, the occurrence of condensation can be suppressed.

In the first invention, since a space is formed between the panel and the heat insulating member, dew condensation is avoided by avoiding contact between the back surface of the first surface cooled by the blown airflow and the warm air existing on the back side of the panel. Can be effectively suppressed.

In the first invention, the blown airflow and the room air are mixed 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 from the outlet during the cooling operation and the warm air of the room air.
In the second invention, since the heat insulating member has a hollow portion formed therein, by avoiding contact between the back surface of the first surface cooled by the blowing airflow and the warm air existing on the back side of the panel, The occurrence of condensation can be more effectively suppressed.

It is a 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. It is a cross-sectional view of the indoor unit of FIG. It is a cross-sectional view of an indoor unit according to a modification of the present invention.

  Embodiments 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 a wall surface in the room so that its longitudinal direction is horizontal. It is what The indoor unit 1 constitutes an air conditioner together with an outdoor unit (not shown), and performs indoor air conditioning. 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 includes a substantially rectangular parallelepiped grill 21 and a front panel 22 that covers the front surface 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 21 a is formed across the grill 21 and the front panel 22. An air outlet 21 b is formed on the lower surface of the grill 21. As shown in FIG.1 (b), the blower outlet 21b is a rectangular-shaped opening long in a longitudinal direction.

  The heat exchanger 3, the indoor fan 4, and the filter 5 are disposed inside the grill 21. The indoor fan 4 extends along the longitudinal direction, and is configured to suck air into the casing 2 through the suction port 21a and blow out the air in the casing 2 from the blowout port 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 side and the front side of the indoor fan 4. In the heat exchanger 3, heat exchange is performed with the passing air. 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 and 6b are disposed at the air outlet 21b. The horizontal blades 6a and 6b are provided to change the airflow direction in the vertical direction of the airflow blown from the blower outlet 21b and to open and close the blower outlet 21b. The horizontal blades 6a and 6b are rectangular plate members that are long in the longitudinal direction. The horizontal blade | wing 6a is arrange | positioned in the front side part in the blower outlet 21b, and the horizontal blade | wing 6b is arrange | positioned in the rear side part in the blower outlet 21b.

  The front panel 22 covers the front surface of the grill 21 as described above, and the upper end portion thereof constitutes a part of the suction port 21a, and the lower end portion thereof is positioned in the vicinity of the front end of the air outlet 21b. The front panel 22 is a surface facing forward, and has a front surface 22a extending downward from the vicinity of the front end of the suction port 21a to the vicinity of the lower end portion of the front panel 22. At the lower end of the front panel 22, it is disposed in front of the air outlet 21b, and is disposed above the first surface 23 and the first surface 23 that extend obliquely upward, so that it goes upward as it goes rearward. And a planar connecting portion 25 that connects 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 air flow blown from the blower outlet 21 b flows along the first surface 23, and peels from the first surface 23 at the front end portion of the first surface 23. That is, the front end portion of the first surface 23 functions as a peeling portion 23 a from which the blown airflow from the air outlet 21 b peels from the front panel 22. The room air flowing downward along the front surface 22 a and the second surface 24 of the front panel 22 is separated from the second surface 24 at the lower end portion of the second surface 24. That is, the lower end portion 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 peeling part 23a of the blowing airflow, and the peeling part 24a of room air.

  The blown air flow peeled off from the front panel 22 in the peeling portion 23a and the indoor air peeled off from the front panel 22 in the peeling portion 24a are mixed at a position away from the front panel in front of the front panel 22. The connecting portion 25 is disposed inside the extended surface of the first surface 23 and the extended surface of the second surface 24 indicated by broken lines in FIG.

  A heat insulating member 26 that contacts the back surface of the first surface 23 is disposed on the back side of the front panel 22. The heat insulating member 26 contacts the back surface of the second surface 24 at a first portion 26 a that contacts the back surface of the first surface 23 and a second portion 26 b that is separated from the first portion 26 a. The heat insulating member 26 is disposed in substantially the entire longitudinal direction of the indoor unit 1, and contacts the back surface of the first surface 23 and the back surface of the second surface 24 in substantially the entire region in the longitudinal direction. Therefore, a heat insulating space 27 extending in the longitudinal direction of the indoor unit 1 is formed between the front panel 22 and the heat insulating member 26.

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. The air sucked into the casing 2 is subjected to heat exchange after passing through the heat exchanger 3 after dust is removed by the filter 5. And after passing the indoor fan 4, it flows along the horizontal blade | wings 6a and 6b, and the airflow which was air-conditioned blows off from the blower outlet 21b. The blown airflow blown out from the blower outlet 21b flows along the first surface 23 that extends obliquely upward due to the Coanda effect, and then the first surface 23 (front panel 22) at the peeling portion 23a at the end of the first surface 23. Peel from. The blown air flow peeled off from the front panel 22 is mixed with the room air peeled off from the second surface 24 (front panel 22) in the peeling portion 24a at a position separated from the front panel 22, and then heads toward the ceiling.

  As described above, in the indoor unit 1 of the present embodiment, since the heat insulating member 26 that contacts the back surface of the first surface 23 is disposed on the back side of the front panel 22, the first surface cooled by the blown airflow. By avoiding contact between the back surface of 23 and the warm air existing on the back side of the front panel 22, the occurrence of condensation can be suppressed.

  Moreover, in the indoor unit 1 of this embodiment, since the heat insulation space 27 is formed between the front panel 22 and the heat insulation member 26, the back surface of the 1st surface 23 cooled by the blowing airflow, and the back side of the front panel 22 The occurrence of condensation can be effectively suppressed by avoiding contact with the warm air present in the.

  Further, in the indoor unit 1 of the present embodiment, the front panel 22 uses the peeling portion 23a that peels off the blown airflow blown from the blowout port 21b from the first surface 23, and the indoor air that flows along the second surface 24 is the first. Since the peeling part 24a which peels from the 2nd surface 24 and the connection part 25 which connects the peeling part 23a and the peeling part 24a are provided, the blowing airflow and room air are the 1st surface 23 and the 2nd surface 24. After peeling from each other, they are mixed. Therefore, it is possible to suppress the occurrence of condensation on the structure of the indoor unit 1 by mixing the cool air blown from the outlet 21b during the cooling operation and the warm air of the room air.

  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 all modifications within the meaning and scope equivalent to the scope of claims for patent.

  For example, in the above-described embodiment, the case where the heat insulating member 27 is disposed in substantially the entire region in the longitudinal direction of the indoor unit 1 and contacts the substantially entire region in the longitudinal direction with respect to the back surface of the first plane 23 has been described. The effect of the present invention is obtained when 27 contacts at least a part of the back surface of the first plane 23.

  Moreover, in the indoor unit 1 of this embodiment, although the case where the heat insulation space 27 was formed between the back surface of the front panel 22 and the heat insulation member 26 was demonstrated, between the back surface of the front panel 22 and the heat insulation member 26, it demonstrated. The heat insulating space 27 may not be formed.

  Moreover, in the indoor unit 1 of this embodiment, although the case where the heat insulation member 26 did not have the hollow part formed in the inside was demonstrated, as shown in FIG. 3, the heat insulation member 126 has heat insulation in the inside. The space 127 may have a hollow portion. In this case, since the heat insulating member 126 has the heat insulating space 127 formed therein, avoid contact between the back surface of the first surface 23 cooled by the blown air flow and the warm air existing on the back side of the front panel 22. Thus, the occurrence of condensation can be suppressed more effectively.

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

  Moreover, although the above-mentioned embodiment demonstrated the case where the 1st surface 23, the 2nd surface 24, peeling part 23a, 24a, and the connection part 25 were provided in the front panel 22, it is not limited to this. These may be provided on members other than the front panel 22. Moreover, the 1st surface 23, the 2nd surface 24, and the connection part 25 are not provided in the same member, and may be provided in the mutually different member. The front panel 22 may have the first surface 23, the second surface 24 connected to the first surface 23, may not have the connection portion 25, and may not have the peeling portions 23a and 24a. .

  If this invention is utilized, it can suppress that dew condensation generate | occur | produces in the back surface of the Coanda surface in a panel.

DESCRIPTION OF SYMBOLS 1 Indoor unit 21b Air outlet 23 1st surface 23a 1st peeling part 24 2nd surface 24a 2nd peeling part 25 Connection part 26,126 Thermal insulation member 27,127 Thermal insulation space

Claims (2)

An outlet for blowing out an air-conditioned airflow;
A panel having a first surface disposed in front of the air outlet and extending horizontally or obliquely upward; and a second surface having a surface disposed above the first surface and facing forward.
On the back side of the panel, a heat insulating member that contacts at least a part of the back surface of the first surface is disposed,
The panel is
A first peeling portion for peeling the blown airflow blown from the blowout port from the first surface;
A second peeling portion for peeling indoor air flowing downward along the second surface from the second surface;
A planar connecting portion connecting the first peeling portion and the second peeling portion;
The heat insulating member is in contact with the back surface of the second surface in a second portion away from the first portion that is in contact with the back surface of the first surface, and
An indoor unit characterized in that a heat insulating space is formed between the panel and the heat insulating member and disposed on the back surface side of the first surface and the connecting portion and extending in the longitudinal direction of the indoor unit. The indoor unit according to claim 1 , wherein the heat insulating member has a hollow portion formed therein.

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