Air conditioners

Abstract

To provide an air conditioner including a fan inside, which blows out air sucked by the fan from a suction port out of a blowout port, the blowout port being formed surrounded by an upper wall surface, a lower wall surface, and right and left wall surfaces, which has at least one vertical wind direction deflecting plate and an auxiliary wind direction deflecting plate connected roughly in parallel to the vertical wind direction deflecting plate through a plurality of support pieces, provided so as to be rotatable with respect to the blowout port, and which is capable of preventing dew condensation in the vertical wind direction deflecting plate during a cooling operation.SOLUTION: In an air conditioner of the present invention, when a cross section area of a support piece in a connection surface between the support piece and an auxiliary wind direction deflecting plate is represented as A0, and a cross section area of the support piece in a cross section parallel to an upper surface of a wind direction deflecting plate is represented as A1, the relation between the cross section areas A0 and A1 in at least one support piece is A0>A1.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to an air conditioner in which an auxiliary air deflector is supported by support pieces on the upper surface side of an up / down air deflector when the air conditioner is in operation. [Background technology]

[0002] Patent Document 1 discloses an air conditioner that is provided with up and down air direction vanes for controlling the direction of air generated by the rotation of a cross flow fan at an air outlet in the vertical direction within a room.

[0003] This air conditioner is equipped with an upper air direction deflector that is rotatably supported at the upper part between the left and right side walls of the air outlet, a first auxiliary air direction deflector that is supported by a first support piece approximately parallel to the upper air direction deflector with a specified gap on the back side of the upper air direction deflector, an upper and lower air direction deflector that is rotatably supported at the lower part between the left and right side walls of the air outlet, and a second auxiliary air direction deflector that is supported by a second support piece with a specified gap on the front side of the upper and lower air direction deflectors. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 8-334255 Summary of the Invention [Problem to be solved by the invention]

[0005] The present disclosure provides an air conditioner that suppresses heat conduction via the support pieces from the auxiliary air deflector, which is constantly exposed to cool blown-out air and becomes cold during cooling operation, to the upper and lower air deflectors, and suppresses heat conduction via the support pieces from the auxiliary air deflector to the upper and lower air deflectors, thereby suppressing cooling of the upper and lower air deflectors and maintaining high controllability of the blown-out airflow, while preventing condensation on the surfaces of the upper and lower air deflectors facing the indoor air even in environments with high indoor air humidity. [Means for solving the problem]

[0006] The air conditioner of the present disclosure has an internal fan and blows air drawn in by the fan through an intake port out of an exhaust port, wherein at least one upper and lower air direction deflector and an auxiliary air direction deflector connected approximately in parallel to the upper and lower air direction deflector via a plurality of support pieces are arranged to be freely rotatable relative to the exhaust port, and wherein when the cross-sectional area of ​​the support piece at the connection surface S0 between the support piece and the auxiliary air direction deflector is A0 and the cross-sectional area of ​​the support piece at a cross section S1 parallel to the upper surface of the air direction deflector is A1, the relationship between the cross-sectional areas A0 and A1 of at least one of the plurality of support pieces is A0>A1. Effect of the Invention

[0007] The air conditioner disclosed herein is provided with an auxiliary air deflector with a predetermined gap on the upper surface side of the upper and lower air deflectors, and when controlling the direction of the blown airflow toward the floor surface, the auxiliary air deflector holds the blown airflow from the air outlet further downward, thereby improving the controllability of the blown airflow. At least one support piece has an area A0 of the connection surface S0 between the support piece and the auxiliary air deflector and an area A1 of the support piece cross section S1 in a surface S1 parallel to the upper surface of the upper and lower air deflectors, such that A0 > A1. This suppresses heat conduction from the auxiliary air deflector, which is constantly exposed to cool blown air and becomes cold, to the upper and lower air deflectors via the support piece during cooling operation, thereby mitigating cooling of the upper and lower air deflectors and reducing the risk of condensation on the surfaces of the upper and lower air deflectors facing the indoor air in environments with high indoor humidity. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a cross-sectional view showing an example of the configuration of an air conditioner according to a first embodiment. [Diagram 2] FIG. 1 is an enlarged cross-sectional view showing the vicinity of an air outlet of an air conditioner according to a first embodiment of the present invention. [Diagram 3] FIG. 11 is an enlarged cross-sectional view showing the vicinity of an air outlet of an air conditioner according to a second embodiment of the present invention. [Figure 4] Cross-sectional view of a conventional air conditioner DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, the embodiments will be described in detail with reference to the drawings. However, more detailed description than necessary may be omitted. For example, detailed description of already well-known matters or duplicate description of substantially the same configuration may be omitted.

[0010] It should be noted that the accompanying drawings and the following description are provided to enable those skilled in the art to fully understand the present disclosure, and are not intended to limit the subject matter described in the claims.

[0011] (Embodiment 1) FIG. 1 is a cross-sectional view showing an example of the configuration of an air conditioner 100 according to this embodiment. FIG. 2 is an enlarged cross-sectional view showing the vicinity of the air outlet of the air conditioner 100 according to this embodiment. As shown in FIG. 1, the air conditioner 100 comprises an intake port 101, a main casing 103 having an exhaust port 102, a heat exchanger 104, a crossflow fan 105, a stabilizer 106, a rear guider 107 (lower wall surface), an upper and lower air direction deflector 108 rotatably supported between the left and right side walls (not shown) of the exhaust port 102, an auxiliary air direction deflector 110 supported by a support piece 109 with a predetermined gap on the upper surface side of the upper and lower air direction deflector 108 when the air conditioner is operating, and an upper air direction deflector 111.

[0012] The support piece 109, like the vertical airflow deflection blade 108, has a surface that follows the direction of the blown air, and serves to mutually support the vertical airflow deflection blade 108 and the auxiliary airflow deflection plate 110, as well as to straighten the blown air.

[0013] The support piece 109 and the upper and lower airflow deflection blades 108, and the support piece 109 and the auxiliary airflow deflection plate 110 are connected by surfaces.

[0014] The connection surface S0 between the support piece 109 and the auxiliary air direction deflector 110, i.e., the surface parallel to the auxiliary air direction deflector 110 where the support piece 109 and the auxiliary air direction deflector 110 are connected, is defined as the connection surface S0, the cross-sectional area of ​​the support piece 109 at this connection surface SO is defined as A0, and the surface parallel to the auxiliary air direction deflector 110 other than SO is defined as S1, and the cross-sectional area of ​​the support piece 109 at this S1 is A1, then the area A0 and the area A1 have a relationship of A0>A1.

[0015] During cooling operation, the auxiliary air deflector 110 is constantly exposed to the cool blown air and becomes cold, but since the area A0 and the area A1 have a relationship of A0>A1, the thermal resistance of the support piece increases, suppressing heat conduction via the support piece 109 between the auxiliary air deflector 110 and the up-down air deflector 108. This suppresses the cooling of the up-down air deflector 108 due to the influence of the auxiliary air deflector 110 which is constantly exposed and becomes cold, and prevents condensation on the surface of the up-down air deflector 108 facing the indoor air even in an environment with high indoor air humidity, while maintaining the controllability of the blown air flow.

[0016] In addition, the support piece 109 is shaped such that the upstream end of the support piece in the cross section S1 is located downstream of the upstream end of the support piece in the connection surface S0 with respect to the flow direction of the blown air. This suppresses heat conduction between the auxiliary airflow deflector 110 and the up-down airflow deflector 108 via the support piece 109, while positioning the upstream end of the support piece 109 close to the up-down airflow deflector 108 at a location where the airflow speed of the blown air is relatively slow, thereby suppressing cooling from the blown air to the support piece 109 at the upstream end of the support piece 109 and suppressing cooling of the up-down airflow deflector 108 as much as possible, and more effectively improving condensation on the surface of the up-down airflow deflector 108 facing the indoor air.

[0017] (Embodiment 2) FIG. 3 is an enlarged cross-sectional view showing the vicinity of the air outlet of the air conditioner 200 according to this embodiment. In FIG. 3, elements common to the first embodiment are denoted by the same reference numerals.

[0018] The length L0 of the support piece 209 in the wind direction at the connection surface S0 between the support piece 209 and the auxiliary wind direction deflector 109, and the surface parallel to the auxiliary wind direction deflector 110 other than SO are defined as S2, and the length L2 of the support piece 209 in the wind direction at the surface S2 satisfy the relationship L0=L2.

[0019] In addition, the width of the support piece 209 in the direction perpendicular to the wind direction, i.e., the longitudinal direction of the upper and lower wind direction deflection blades, becomes continuously smaller from the connection surface S0 to the surface S2, and the width W0 of the connection surface S0 between the support piece 209 and the auxiliary wind direction deflection plate 109 and the width W2 of the surface S2 between the support piece 209 and the upper and lower wind direction deflection plate 108 satisfy the relationship W0>W2.

[0020] In addition, the area of ​​the support piece 209 on the connection surface S0 is A0, the area of ​​the support piece 209 on the surface S2 is A2, and the area A0 and the area A2 have a relationship of A0>A2.

[0021] Since the areas A0 and A2 have a relationship of A0>A2, the thermal resistance of the support piece becomes large. Even if the support piece 209, which is constantly exposed to cool blown air during cooling, is cooled to a low temperature, the thermal conduction to the vertical air direction deflector 108 can be suppressed as much as possible, and condensation on the surface of the vertical air direction deflector 108 facing the indoor air can be more effectively improved.

[0022] In addition, the width of the support piece 209 may change discontinuously between the connection surface S0 between the support piece 209 and the auxiliary air direction deflector 109 and the surface S2 between the support piece 209 and the upper and lower air direction deflector 108, and the upstream end of the connection surface S2 between the support piece 209 and the upper and lower air direction deflector 108 may be located downstream of the upstream end of the connection surface S0 between the support piece 209 and the auxiliary air direction deflector 110. [Industrial Applicability]

[0023] The present disclosure is suitable for use in domestic and commercial air conditioning because it can reduce the risk of condensation on the surfaces of the upper and lower air direction deflectors facing the indoor air in environments with high indoor humidity while maintaining high controllability of the blown air flow. [Explanation of symbols]

[0024] 100 Air conditioner 101 Intake port 102 Air outlet 103 Main casing 104 Heat exchanger 105 Crossflow fan 106 Stabilizer 107 Rear guider (lower wall) 108 Vertical wind deflection plate (lower vertical wind deflection plate) 109 Support piece 110 Auxiliary wind deflection plate 111 Upper wind deflection plate 200 Air conditioner 209 Support piece S0 Connection surface between the support piece and the auxiliary air deflector S1 Section of the support piece parallel to the top surface of the vertical air deflector S2 Connection surface between the support piece and the upper and lower air deflectors A0 Area of ​​the support piece at the connection surface S0 A1 Cross-sectional area of ​​the support piece on surface S1 A2 Cross-sectional area of ​​the support piece on surface S2 L0: Length of the support piece in the wind direction at the connection surface S0 L2: Length of the support piece in the wind direction on surface S2 W0 Width of the support piece in the direction perpendicular to the wind direction at the connection surface S0 W2 Width of the support piece on surface S2 in the direction perpendicular to the wind direction

Claims

1. An air conditioner having an internal fan and blowing air drawn in by the fan through an intake port out of an exhaust port, wherein at least one upper and lower air direction deflector and an auxiliary air direction deflector connected approximately in parallel to the upper and lower air direction deflector via a plurality of support pieces are provided so as to be freely rotatable relative to the exhaust port, wherein when a cross-sectional area of ​​the support piece at a connection surface S0 between the support piece and the auxiliary air direction deflector is A0 and a cross-sectional area of ​​the support piece at a surface S1 parallel to the upper surface of the upper and lower air direction deflector is A1, the relationship between the cross-sectional areas A0 and A1 of at least one of the plurality of support pieces is A0>A1, and the smallest portion of the cross-sectional area A1 of the support piece has a predetermined length in the longitudinal direction of the support piece.

2. The air conditioner according to claim 1, characterized in that the surface S1 is a surface where a support piece and a lower upper and lower air direction deflector (lower upper and lower air direction deflector) are connected, the lower upper and lower air direction deflector being provided on an extension of the lower wall surface of the air outlet.

3. An air conditioner as described in any one of claims 1 to 2, characterized in that the upstream end of the support piece on the surface S1 is located downstream of the upstream end of the support piece on the connection surface S0 in the direction of air flow blown out of the air outlet.

4. An air conditioner as described in any one of claims 1 to 3, characterized in that when a surface other than SO parallel to the auxiliary airflow deflector is designated as S2, the width of the support piece at S0 in a direction perpendicular to the flow direction of the air blown out of the air outlet is larger than the width of the support piece at the surface S2.

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