JP2017053565A - Wall-mounted air-conditioning indoor machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To relax restriction on air flow control without impairing designability, in a wall-mounted air-conditioning indoor machine.SOLUTION: A wind direction adjustment member 50 is provided with a concave part 57 recessed on a rear end part of a wind direction adjustment member lower surface 52. The wind direction adjustment member 50, when generating a first air flow flowing toward not a blowout port 27 but an installation side wall, is made into a first attitude such that an upper surface rotates reward to a vertical surface and a front end is positioned at the rear of a rear end 56. The wind direction adjustment member 50, when being made into the first attitude, is attached so that a lower edge 27b of the blowout port 27 is inserted into the concave part 57.SELECTED DRAWING: Figure 14

Description

  The present invention relates to a wall-mounted air conditioning indoor unit.

  2. Description of the Related Art Conventionally, wall-mounted air conditioning indoor units have been proposed that include a wind direction adjusting member for adjusting the vertical wind direction. For example, as disclosed in Patent Document 1 (Japanese Patent Application Laid-Open No. 2007-93092) and the like, the air conditioning that can change the blowing direction of the conditioned air blown from the blower outlet through the air passage to the lower side by the wind direction adjusting member. There is an indoor unit.

  In the air conditioning indoor unit described in Patent Document 1, although the air blown from the outlet can be changed downward, the airflow control using the wind direction adjusting member is limited because the rotation range of the wind direction adjusting member is small. Therefore, the function to provide a comfortable environment is not sufficient.

  An object of the present invention is to alleviate restrictions on airflow control in a wall-mounted air conditioning indoor unit.

  A wall-hanging air conditioning indoor unit according to a first aspect of the present invention includes a casing in which a rear surface portion is fixed to an installation side wall, and an air outlet that blows conditioned air is formed in front of the rear surface portion, and an air outlet of the casing A rear end close to the rotation center set at the lower edge, a front end far from the rotation center, an upper surface for adjusting the air direction of the blown air blown out from the outlet, and a lower surface opposite to the upper surface. A wind direction adjusting member formed with a recessed portion recessed upward at the rear end portion, and when the wind direction adjusting member generates the first air stream that is directed toward the installation side wall from the blowout port, the upper surface is a vertical surface. On the other hand, when taking the first posture in which the front end is positioned behind the rear end and generating the second air flow forward toward the outlet, the upper surface is rotated forward with respect to the vertical surface. And take a second posture with the front end positioned in front of the rear end. Doo is capable constructed, it mounted so as the lower edge of the air outlet enters the recess when taking the first posture, those.

  In this wall-mounted air conditioning indoor unit, the lower edge of the blowout port enters the recessed portion of the recessed portion of the airflow direction adjusting member when taking the first posture, so that the range of the rotating operation can be increased.

  A wall-hanging air conditioning indoor unit according to a second aspect of the present invention is the air conditioning indoor unit according to the first aspect, wherein the casing is the lower edge of the air outlet and is the lower edge of the air outlet and takes the first posture. A receding portion corresponding to the shape of the lower surface of the wind direction adjusting member is formed at a position facing the rear end portion.

  In this wall-mounted air-conditioning indoor unit, the retracted portion provided at the lower edge of the air outlet of the casing is provided corresponding to the shape of the lower surface of the wind direction adjusting member, so that the retracted portion is not provided. In comparison, the rotation range of the wind direction adjusting member to the rear side can be increased.

  The wall-mounted air conditioning indoor unit according to the third aspect of the present invention is the air conditioning indoor unit according to the first or second aspect, wherein the casing is the lower edge of the air outlet and takes the first posture. A groove portion is formed at a position facing the rear end portion of the lower surface of the member.

  In this wall-mounted air conditioning indoor unit, the groove provided at the lower edge of the air outlet of the casing is formed so as to face the gap between the air direction adjusting member and the casing. The airflow flowing through the can be stirred.

  A wall-mounted air conditioning indoor unit according to a fourth aspect of the present invention is the air conditioning indoor unit according to the first aspect, wherein the wind direction adjusting member and the casing face each other when the wind direction adjusting member assumes the first posture. In addition, an inclined end face is formed.

  In this wall-mounted air conditioning indoor unit, the inclined end surface of the wind direction adjusting member and the inclined end surface of the casing are opposed to each other when the air direction adjusting member is in the first posture. Can be bigger.

  A wall-hanging air conditioning indoor unit according to a fifth aspect of the present invention is the air conditioning indoor unit according to any one of the first to fourth aspects, wherein the wind direction adjusting member has a flange on a side portion of the recess, and the casing Is such that the airflow direction adjusting member pivotally supports the flange so as to be rotatable in the vertical direction.

  In this wall-mounted air conditioning indoor unit, the strength of the rear end portion of the wind direction adjusting member is reduced by the recess at the rear end portion of the wind direction adjusting member. Even if a recess is provided at the rear end of the member, deformation of the wind direction adjusting member can be suppressed.

  In the wall-mounted air-conditioning indoor unit according to the first aspect of the present invention, the range of the rotation operation is increased, so that the restriction of airflow control for ensuring comfort can be relaxed. Moreover, since the hollow part is not conspicuous and easily formed on the lower surface of the wind direction adjusting member, it is possible to maintain good design properties.

  In the wall-mounted air conditioner indoor unit according to the second aspect of the present invention, the restriction on the air flow control can be relaxed by the amount that the rotation range is increased by the step of the wind direction adjusting member.

  In the wall-hanging air conditioner indoor unit according to the third aspect of the present invention, it is possible to suppress the occurrence of condensation in the gap between the wind direction adjusting member and the casing by the groove.

  In the wall-hanging air conditioning indoor unit according to the fourth aspect of the present invention, the restriction on the airflow control can be relaxed by the amount of the rotation range increased by the wind direction adjusting member and the inclined end surface of the casing.

  In the wall-mounted air conditioner indoor unit according to the fifth aspect of the present invention, by suppressing the deformation of the wind direction adjusting member, it is possible to prevent the wind direction adjusting function from being lowered and to prevent the designability from being deteriorated. it can.

The perspective view which shows the external appearance of the air-conditioning indoor unit which concerns on embodiment of this invention. Sectional drawing which shows the outline | summary of a structure of the air conditioning indoor unit of FIG. The perspective view of a wind direction adjustment member. The partial expanded sectional view for demonstrating a scroll air blowing flow path. The partial expanded sectional view for demonstrating the relationship between a wind direction adjustment member and the lower edge of a blower outlet. Sectional drawing for demonstrating the attitude | position of the wind direction adjustment member of a 2nd wind direction. The perspective view which shows the left side part of the air conditioning indoor unit cut | disconnected by the plane perpendicular | vertical with respect to the left-right direction. (A) Partial sectional view for explaining another example of the posture of the first auxiliary flap and the second auxiliary flap in the second wind direction, (b) The posture of the first auxiliary flap and the second auxiliary flap in the second wind direction The fragmentary sectional view for demonstrating another example. (A) Partial sectional view for explaining the attitude of the third wind direction wind direction adjusting member, (b) Partial sectional view for explaining the attitude of the fourth wind direction adjusting member, (c) Wind direction of the fifth wind direction The fragmentary sectional view for demonstrating the attitude | position of an adjustment member. (A) Sectional drawing of a wind direction adjustment member, (b) Side view of a wind direction adjustment member. The partial expansion perspective view which fractured | ruptured a part of wind direction adjustment member. The partial expansion perspective view which shows the periphery of the center rear end part of a wind direction adjustment member. (A) The side view for demonstrating the 1st airflow of the air conditioning indoor unit installed indoors, (b) The side view for demonstrating the 2nd airflow of the air conditioning indoor unit installed indoors. The partial expanded sectional view for demonstrating the relationship between a wind direction adjustment member and the lower edge of a blower outlet. The fragmentary sectional view for demonstrating the relationship between the wind direction adjustment member which concerns on a modification, and the lower edge of a blower outlet. The partial expanded sectional view which expanded the part of the lower edge of the wind direction adjustment member and blower outlet of FIG.

(1) Configuration of Air Conditioning Indoor Unit FIG. 1 shows an external view of the air conditioning indoor unit 10 as viewed obliquely from the lower front right. In the following description, the top, bottom, front, back, left, and right of the air conditioning indoor unit 10 are as indicated by the orthogonal coordinates in FIG. FIG. 2 shows the main shape of a cross section of the air conditioner indoor unit 10 cut at a plane perpendicular to the left and right direction at the approximate center in the left and right direction. The air conditioning indoor unit 10 is a wall-hanging type, and the rear part is attached to an indoor installation side wall WL. The air conditioning indoor unit 10 can perform a cooling operation for cooling the indoor space RS and a heating operation for heating the indoor space RS.

(2) Detailed Configuration As shown in FIGS. 1 and 2, the air conditioning indoor unit 10 includes a casing 11, an air filter 12, an indoor heat exchanger 13, an indoor fan 14, and a plurality of vertical flaps 15. A second auxiliary flap 30, a first auxiliary flap 40, and a wind direction adjusting member 50.

(2-1) Casing 11
The casing 11 has a box shape that is elongated in the lateral direction (the left-right direction of the air-conditioning indoor unit 10 (see orthogonal coordinates in FIG. 1)) and has a plurality of openings. As shown in FIGS. 1 and 2, the casing 11 has a three-dimensional space surrounded by a top surface portion 11a, a front surface portion 11b, a rear surface portion 11c, a right side surface portion 11d, a left side surface portion 11e, and a bottom surface portion 11f. . The top surface portion 11 a, the front surface portion 11 b, the right side surface portion 11 d, the left side surface portion 11 e, and the bottom surface portion 11 f of the casing 11 are covered with a decorative board 20. The casing 11 is attached to the installation side wall WL by the back plate 28 in the rear surface part 11c. In the three-dimensional space of the casing 11, an air filter 12, an indoor heat exchanger 13, an indoor fan 14, and a bottom frame 16 are accommodated. In order to store these in the three-dimensional space, the decorative board 20 is configured to be covered from the front to the back.

  The top surface portion 11 a is located at the upper end portion of the casing 11. The front surface portion 11b of the decorative plate 20 includes a front plate 21 whose upper end is rotatably supported by a top surface portion 11a by a hinge (not shown). The front plate 21 is separated from the right side plate 22 constituting the right side surface portion 11 d of the decorative plate 20 and the left side plate 23 constituting the left side surface portion 11 e of the decorative plate 20.

  The back plate 28 constitutes the rear surface portion 11 c of the casing 11. The rear plate 28 is attached to a mounting plate (not shown) installed on the indoor installation side wall WL by screws or the like, so that the air conditioning indoor unit 10 is installed on the installation side wall WL.

  A top surface suction port 25 is provided in the top surface portion 11 a of the casing 11. When the indoor fan 14 is driven, room air in the vicinity of the top surface suction port 25 is taken into the casing 11 from the top surface suction port 25. The room air taken in from the top surface suction port 25 passes through the indoor heat exchanger 13 and is sent to the indoor fan 14.

  A bottom surface suction port 26 is formed in the bottom surface portion 11 f of the casing 11. Moreover, the blower outlet 27 is formed in the bottom face part 11f. The bottom suction port 26 is provided behind the air outlet 27. The suction channel 16 a of the bottom frame 16 connects the bottom suction port 26 and the space above the air filter 12 in the casing 11. Therefore, by driving the indoor fan 14, the indoor air near the bottom suction port 26 is sent from the bottom suction port 26 to the indoor heat exchanger 13 through the suction flow path 16a. The suction channel 16a is formed along the channel upper surface 16c and the channel lower surface 16d of the bottom frame 16 from the bottom surface suction port 26. The suction channel 16a and a scroll air outlet channel 16b described later are adjacent to each other with the channel lower surface 16d interposed therebetween. The bottom surface suction port 26 is provided with an opening / closing plate 17 for opening and closing the bottom surface suction port 26.

  In the air conditioning indoor unit 10, the air outlet 27 provided in front of the bottom surface inlet 26 is connected to the inside of the casing 11 by a scroll air outlet channel 16 b. The indoor air sucked from the top surface suction port 25 and the bottom surface suction port 26 is subjected to heat exchange in the indoor heat exchanger 13, and then blown out from the blowout port 27 into the room through the scroll air blowing channel 16b.

(2-2) Configuration for adjusting the wind direction The air outlet 27 has an upper edge 27a and a lower edge 27b that extend long in the left-right direction. On the side of the upper edge 27a of the air outlet 27, a flat plate-like second auxiliary flap 30 that extends to the left and right and a first auxiliary flap 40 that extends to the left and right are provided. Further, a wind direction adjusting member 50 that extends long to the left and right is provided on the lower edge 27 b side of the air outlet 27. The second auxiliary flap 30, the first auxiliary flap 40, and the airflow direction adjusting member 50 are respectively the second auxiliary flap upper surface 31, the second auxiliary flap lower surface 32, the first auxiliary flap upper surface 41, the first auxiliary flap lower surface 42, and the airflow direction adjustment. A member upper surface 51 and a wind direction adjusting member lower surface 52 are provided. The first auxiliary flap 40 and the wind direction adjusting member 50 have a hollow structure, and the weight of the first auxiliary flap 40 and the wind direction adjusting member 50 is reduced.

  The 2nd auxiliary flap 30, the 1st auxiliary flap 40, and the wind direction adjustment member 50 are each attached to the casing 11 so that rotation is possible. The second auxiliary flap 30, the first auxiliary flap 40, and the airflow direction adjusting member 50 are each independently rotated by a flap driving motor (not shown) provided to the respective rotation centers 35, which extend to the left and right. 45 and 58 (refer FIG. 6), It is comprised so that rotation is possible. FIG. 3 shows a view of the wind direction adjusting member 50 as viewed obliquely from the upper right. A straight line connecting the supported portions 53 of the wind direction adjusting member 50 becomes the rotation center 58 of the wind direction adjusting member 50. These flap driving motors are controlled by a control device (not shown) provided in the air conditioning indoor unit 10. And these 2nd auxiliary | assistant flap 30, the 1st auxiliary | assistant flap 40, and the wind direction adjustment member 50 adjust the wind direction of the air which blows off from the blower outlet 27 up and down independently or in cooperation with each other. The wind direction adjusting member 50 has a function of opening the air outlet 27 when air is blown from the air outlet 27 and closing the air outlet 27 when the operation is stopped. Further, the first auxiliary flap 40 is configured to be close to the casing 11 and take a posture like a part of the casing 11 when the operation is stopped. When the operation is stopped, the first auxiliary flap lower surface 42 and the wind direction adjusting member lower surface 52 are assimilated to the decorative plate 20 of the casing 11 to constitute the design of the air conditioning indoor unit 10.

  In the back of the second auxiliary flap 30 at the air outlet 27, a plurality of vertical flaps 15 having a plane intersecting with the left-right direction are provided. A vertical flap 15 can be rotated left and right around a rotation center extending vertically by a flap driving motor (not shown). The flap driving motor that drives the vertical flap 15 is also controlled by the aforementioned control device provided in the air conditioning indoor unit 10. And these several vertical flaps 15 adjust the wind direction of the air which blows off from the blower outlet 27 right and left.

(2-3) Indoor heat exchanger 13
The indoor heat exchanger 13 includes a plurality of fins and a plurality of heat transfer tubes that penetrate the plurality of fins. The indoor heat exchanger 13 is attached to the bottom frame 16 inside the casing 11. The indoor heat exchanger 13 functions as an evaporator or a condenser according to the operating state of the air conditioning indoor unit 10, and exchanges heat between the refrigerant flowing in the heat transfer tube and the air passing through the indoor heat exchanger 13. Let it be done.

  As shown in FIG. 2, the indoor heat exchanger 13 has a substantially inverted V shape in which both ends are bent downward in a side view. And the indoor heat exchanger 13 is arrange | positioned so that the indoor fan 14 may be enclosed from the top.

(2-4) Indoor fan 14
As shown in FIG. 2, the indoor fan 14 is located at a substantially central portion inside the casing 11. This indoor fan 14 is a cross flow fan having a substantially cylindrical shape elongated in the longitudinal direction (left-right direction) of the air conditioning indoor unit 10. When the indoor fan 14 is driven to rotate, the indoor air is sucked from the top surface suction port 25 and the bottom surface suction port 26, passes through the air filter 12, and then passes through the indoor heat exchanger 13. The conditioned air is blown out from the outlet 27 into the room.

(2-5) Bottom frame 16
The bottom frame 16 serves to support the air filter 12, the indoor heat exchanger 13, and the indoor fan 14 described above. Further, the bottom frame 16 forms a suction channel 16a and a scroll air outlet channel 16b. The scroll air blowing flow passage 16b extends obliquely downward from the front of the indoor fan 14 to the front. The scroll air outlet channel 16b is a space sandwiched between the channel upper surface 16c and the channel lower surface 16d.

  FIG. 4 shows a state where the second auxiliary flap 30, the first auxiliary flap 40, and the wind direction adjusting member 50 are removed from FIG. The shape of the scroll air blowing channel 16b will be described with reference to FIG. The flow path lower surface 16 d extends upward from the lower edge 27 b of the air outlet 27 and covers the rear portion of the indoor fan 14 obliquely upward. The flow path lower surface 16d is smoothly curved so as to swell rearward. The cross-sectional shape of the flow path lower surface 16d when the flow path lower surface 16d is cut along a plane perpendicular to the left-right direction is a spiral shape. In other words, the cross-sectional shape of such a flow path lower surface 16d is a curve that moves away from the rotation center of the indoor fan 14 as it turns.

  Between the upper edge 27a of the blower outlet 27 and the upper surface front end 16f of the flow path upper surface 16c, a recess 16g extending in the left and right direction is formed. By forming the recess 16g, a step is formed in front of the upper surface front end 16f of the flow path upper surface 16c. The second auxiliary flap 30 can be accommodated in the recess 16g. In a state where the second auxiliary flap 30 is housed in the recess 16g, the rear end portion of the second auxiliary flap lower surface 32 is configured to be flush with the flow path upper surface 16c. The flow path upper surface 16c extends substantially straightly rearward and obliquely upward from the upper surface front end 16f toward the lower side of the indoor fan 14.

(2-6) Air filter 12
The air filter 12 is for collecting dust in the indoor air sucked from the top surface suction port 25 and the bottom surface suction port 26. With the air filter 12 mounted on the casing 11, the air filter 12 is positioned between the top surface portion 11 a of the casing 11 and the indoor heat exchanger 13. The air filter 12 prevents dust in the room air from adhering to the surface of the indoor heat exchanger 13. The air filter 12 can be attached to the casing 11 or removed from the casing 11 for maintenance.

(3) Vertical wind direction adjustment (3-1) First wind direction The posture of the second auxiliary flap 30, the first auxiliary flap 40, and the wind direction adjusting member 50 shown in FIGS. 1 and 2 is the first wind direction. Taken when blowing air. The first wind direction is the wind direction when the airflow is circulated to the back of the indoor space RS. In order to circulate the airflow to the interior of the indoor space RS, it is preferable to create a laminar flow having a high wind speed without being diffused at the air outlet 27. In order to create such a laminar flow, it is preferable to extend the scroll air blowing channel 16b. However, since it is difficult to extend or contract the scroll air blowing flow path 16b, the same situation as the case where the scroll air blowing flow path 16b is extended is simulated by the posture of the second auxiliary flap 30 and the wind direction adjusting member 50. The state shown in FIGS. 1 and 2 is created.

  In the first wind direction, the second auxiliary flap 30 takes a posture in which the second auxiliary flap lower surface 32 extends the flow channel upper surface 16c of the scroll air blowing flow channel 16b forward. Moreover, in this 1st wind direction, the wind direction adjustment member 50 has taken the attitude | position where the wind direction adjustment member upper surface 51 extends the flow path lower surface 16d of the scroll air blowing flow path 16b to the front side.

  As shown in FIG. 4, when the flow path upper surface 16c is extended to the front side, a first virtual plane PL1 starting from the upper surface front end 16f is formed substantially parallel to the flow path upper surface 16c. In this case, the first imaginary line formed by cutting the first imaginary plane PL1 in a cross section parallel to the rear direction and the up-down direction may coincide with the tangent of the tip of the flow channel upper surface 16c of the scroll air blowing flow channel 16b. preferable. Further, when the flow path lower surface 16d is extended to the front side, a second virtual surface PL2 starting from the lower surface front end 16h is formed substantially parallel to the lower surface front end 16h of the flow path lower surface 16d. In this case, it is preferable that the second imaginary line formed by cutting the second imaginary plane PL2 in a cross section parallel to the front-rear direction and the up-down direction coincides with the tangent of the tip end portion of the flow path lower surface 16d of the scroll air blowing flow path 16b. .

  In addition, the second auxiliary flap lower surface 32 may be slightly curved. In this case, the second auxiliary flap lower surface 32 has the rear end portion of the main surface coinciding with the first virtual surface PL1. It is assumed that the flap lower surface 32 matches the first virtual surface PL1. In addition, the second auxiliary flap lower surface 32 may be slightly curved. In this case, the rear end portion of the main surface of the wind direction adjusting member upper surface 51 coincides with the second virtual surface PL2, so that the wind direction adjusting member upper surface is aligned. 51 is considered to coincide with the second virtual plane PL2. Here, the main surface refers to a surface used exclusively for wind direction adjustment, excluding portions that do not contribute to wind direction adjustment. For example, the recessed part 54 is provided corresponding to the protrusion in the casing 11. The concave portion 54 is a structure for preventing the protrusion of the casing 11 from obstructing when the air outlet 27 is closed by the air direction adjusting member 50, and does not contribute much to the air direction adjustment. Is not included.

The second auxiliary flap 30 is mounted apart from the upper surface front end 16f of the flow channel upper surface 16c in order to rotate. For the same reason, the wind direction adjusting member 50 is also mounted apart from the lower surface front end 16h of the flow path lower surface 16d. However, if the second auxiliary flap 30 and the flow path upper surface 16c and the wind direction adjusting member 50 and the flow path lower surface 16d are separated too much, the scroll air blowing flow path 16b by the second auxiliary flap lower surface 32 and the wind direction adjusting member 50 is sufficient. The extension effect cannot be obtained. Therefore, in a state where the first wind direction is set, the distance from the rear end 34 of the second auxiliary flap 30 to the upper front end 16f of the upper surface 16c of the flow path upper surface 16c is within 5 mm within a range in which the second auxiliary flap 30 can be rotated. The distance L1 from the rear end 56 of the wind direction adjusting member 50 to the lower surface front end 16h of the flow path lower surface 16d is 5 mm or less (see FIG. 5).
Since the first auxiliary flap 40 is provided on the downstream side of the second auxiliary flap 30, the front end 33 of the second auxiliary flap 30 that is the outlet of the extended scroll air blowing passage 16 b and the airflow direction adjusting member 50. The wind direction of the air blown out from the portion surrounded by the front end 55 is finely adjusted up and down. In the state shown in FIG. 2, the first auxiliary flap 40 is blown out from the scroll air blowing passage 16 b facing slightly downward from the horizontal while taking a posture in which the resistance to the blown air becomes as low as possible. It takes the posture that lifts the wind direction of the air slightly.

(3-2) 2nd wind direction The 2nd wind direction shown by FIG. 6 is a wind direction when producing the airflow along the wall to which the rear surface part 11c of the air-conditioning indoor unit 10 is attached. The second auxiliary flap 30, the first auxiliary flap 40, and the wind direction adjusting member 50 that are set so as to blow out air in the second wind direction generate an air flow that goes in the direction of the rear surface portion 11 c from the air outlet 27. At this time, in the wind direction adjusting member 50, the wind direction adjusting member upper surface 51 rotates rearward from the vertical plane perpendicular to the front-rear direction, and the front end 55 is positioned rearward of the rear end 56. Similarly, the first auxiliary flap 40 also has the first auxiliary flap upper surface 41 rotated rearward from the vertical plane perpendicular to the front-rear direction, and the front end 43 is positioned rearward of the rear end 44. Similarly, the second auxiliary flap 30 is also configured such that the second auxiliary flap upper surface 31 rotates rearward from the vertical plane perpendicular to the front-rear direction, and the front end 33 is positioned rearward of the rear end 34.

  When the second auxiliary flap 30 and the first auxiliary flap 40 are in the second wind direction, the second auxiliary flap 30 and the first auxiliary flap 40 have the first auxiliary flap 30 and the first auxiliary flap 40 so as to overlap each other when viewed from the front. Air is prevented from flowing forward from the gap between the auxiliary flaps 40.

  As the second wind direction, the second auxiliary flap 30 and the first auxiliary flap 40 can take the posture shown in FIGS. 8A and 8B. The second auxiliary flap 30 and the first auxiliary flap 40 shown in FIG. 8A are in such a posture that the second auxiliary flap upper surface 31 is in contact with the first auxiliary flap lower surface 42. Further, the second auxiliary flap 30 and the first auxiliary flap 40 shown in FIG. 8B are arranged such that the front end 33 of the second auxiliary flap 30 approaches the first auxiliary flap 40 and the second auxiliary flap lower surface 32. And the 1st auxiliary | assistant flap lower surface 42 has taken the attitude | position continued in a line.

(3-3) Third Wind Direction The third wind direction shown in FIG. 9A is the wind direction when air is blown out at the maximum air volume. When set to blow out air in the third wind direction, the second auxiliary flap 30 is housed in the recess 16g in front of the flow path upper surface 16c. In the third wind direction, the front end 43 of the first auxiliary flap 40 moves slightly higher than in the first wind direction, and the first auxiliary flap 40 takes a posture of expanding the airflow blown out from the outlet 27 upward. Yes. In the third wind direction, the front end 55 of the wind direction adjusting member 50 moves slightly lower than in the first wind direction, and the wind direction adjusting member 50 takes a posture of expanding the air flow blown out from the outlet 27 downward. That is, the 1st auxiliary | assistant flap 40 and the wind direction adjustment member 50 are taking the attitude | position which spreads so that it goes ahead and is easy to send the air blown off with the maximum air volume into indoor space RS.

(3-4) Fourth Wind Direction The fourth wind direction shown in FIG. 9B is the wind direction when air is blown forward and downward. When set to blow out air in the fourth wind direction, the second auxiliary flap 30 is accommodated in the recess 16g in front of the flow path upper surface 16c. In the fourth wind direction, the front end 43 of the first auxiliary flap 40 moves slightly lower than that in the first wind direction, and the first auxiliary flap 40 takes a posture of pushing down the airflow blown from the outlet 27. ing. That is, the lower rate of the first auxiliary flap lower surface 42 at this time is lower than the first virtual surface PL1 as it goes forward, and is lower than the first virtual surface PL1. In the fourth wind direction, the front end 55 of the wind direction adjusting member 50 moves slightly lower than in the first wind direction, and the wind direction adjusting member 50 takes a posture of guiding the airflow blown out from the outlet 27 downward. . That is, the wind direction adjusting member upper surface 51 at this time has a rate of lowering downward as it goes forward is larger than the second virtual surface PL2, and is lower than the second virtual surface PL2.

(3-5) Fifth Wind Direction The fifth wind direction shown in FIG. 9C is an example of the wind direction when air is blown forward and downward using the second auxiliary flap 30 during cooling. When set so as to blow out air in the fourth wind direction, the second auxiliary flap 30 is rotated so that the front end 33 moves downward, and comes out of the recess 16g to take a front-down posture. At this time, the second auxiliary flap lower surface 32 is located close to the surface connecting the flow path upper surface 16c and the first auxiliary flap lower surface 42, and the airflow from the flow channel upper surface 16c to the first auxiliary flap lower surface 42 is smooth. The air that is blown out is relayed.

  In the fifth wind direction, the front end 43 of the first auxiliary flap 40 moves slightly lower than in the first wind direction, but the front end 43 moves slightly higher than in the fourth wind direction. The auxiliary flap 40 takes a posture of pushing down the airflow blown out from the air outlet 27 slightly. In the fifth wind direction, the attitude of the wind direction adjusting member 50 is the same as the fourth wind direction. When the second auxiliary flap 30, the first auxiliary flap 40, and the wind direction adjusting member 50 take such a posture, it is possible to carry the blown air to a far place ahead of the fourth wind direction.

(3-6) Movement of the first auxiliary flap 40, the second auxiliary flap 30, and the wind direction adjusting member 50 The position of the front end 33 of the second auxiliary flap 30 shown in FIG. 6 to FIG. This is a state below the rotation center 45 of the auxiliary flap 40. On the other hand, the second auxiliary flap 30 is positioned above the rotation center 45 of the first auxiliary flap 40 when stored in the recess 16g. In order for the second auxiliary flap 30 to turn to the position of the second auxiliary flap 30 shown in FIG. 6 to FIG. 8B, the second auxiliary flap 30 is on the orbit along which the second auxiliary flap 30 rotates. The first auxiliary flap 40 at the position shown in FIG. That is, when the second auxiliary flap 30 is housed in the recess 16g, the first auxiliary flap 40 hits the first auxiliary flap 40 if the first auxiliary flap 40 is in the position shown in FIGS. 6 to 8B. The second auxiliary flap 30 cannot rotate to the position shown in FIG. 6 to FIG. 8B. Therefore, for example, the first auxiliary flap 40 is stored in the recess 16g first in a state where the first auxiliary flap 40 is rotated forward so as to be closest to the casing 11, in other words, in a state where the first auxiliary flap 40 is along the casing 11. 2 The auxiliary flap 30 is rotated backward from the position shown in FIG. 6 to the position shown in FIG. Then, the 1st auxiliary | assistant flap 40 is rotated back to the position shown by FIG. 6B from FIG. In this way, the second auxiliary flap 30 and the first auxiliary flap 40 perform a pivoting operation to avoid mutual interference, so that the front end 33 of the second auxiliary flap 30 is above the rotation center 45 of the first auxiliary flap 40. The state and the underlying state can be interchanged.

(4) Structure of the wind direction adjusting member FIG. 10A shows an end face of the wind direction adjusting member 50 cut along the line II in FIG. FIG. 10B shows a side surface of the wind direction adjusting member 50 as viewed from the right side. FIG. 11 shows a state in which the wind direction adjusting member 50 is broken at the center and viewed from the upper right. The wind direction adjusting member 50 has a hollow structure in which a plate-like member constituting the wind direction adjusting member upper surface 51 and a plate-like member constituting the wind direction adjusting member lower surface 52 are fused. Due to the hollow structure, if the stress concentration occurs on the wind direction adjusting member upper surface 51 and the wind direction adjusting member lower surface 52, the wind direction adjusting member 50 may be deformed. When the wind direction adjusting member 50 is deformed, for example, a large gap is formed between the wind direction adjusting member 50 and the casing 11 when the operation is stopped, and the appearance is deteriorated.

  In order to prevent such stress concentration, a supported portion 53 is provided in the concave portion 60 of the central shaft support portion of the wind direction adjusting member 50. As shown in FIG. 12, the supported portion 53 of the central shaft support portion is rotatably supported by the support portion 71 spanned between the upper edge 27 a and the lower edge 27 b of the air outlet 27 of the casing 11. Has been. A flange 59 having a width wider than the thickness of the wind direction adjusting member 50 is attached to the right end portion 61 and the left end portion 62 (see FIG. 3) of the wind direction adjusting member 50. These flanges 59 are provided with supported portions 53. The supported portions 53 of the flanges 59 are rotatably fitted to support portions (not shown) provided in the casing 11.

  Next, the relationship between the attitude of the wind direction adjusting member 50 and the airflow will be described before describing the recess 57 provided in the wind direction adjusting member 50. As shown in FIG. 13A, the air conditioning indoor unit 10 generates an air flow along the installation side wall WL when the air flow is in the second wind direction, for example, and such an air flow is referred to as a first air flow CL1. When the first airflow CL1 is generated, the wind direction adjusting member upper surface 51 rotates rearward with respect to the vertical surface, and the front end 55 of the wind direction adjusting member 50 is positioned behind the rear end 56. Such a posture is called a first posture.

  Further, as shown in FIG. 13 (b), for example, when the first wind direction, the third wind direction, or the fifth wind direction is generated, an air flow directed forward from the outlet 27 is generated. This is called the second air flow CL2. When such second airflow CL2 is generated, the wind direction adjusting member 50 rotates the wind direction adjusting member upper surface 51 forward with respect to the vertical surface, and the front end 55 of the wind direction adjusting member 50 is more than the rear end 56. The posture positioned on the front side is taken, and such a posture is referred to as a second posture.

  FIG. 14 shows an enlarged view of the periphery of the lower edge 27b of the air outlet 27 in a state in which the wind direction adjusting member 50 is in the first posture. The recess 57 is formed by a step on the lower surface 52 of the wind direction adjusting member. In a cross-sectional shape in which the wind direction adjusting member 50 is cut along a plane perpendicular to the left-right direction, the front side of the wind direction adjusting member lower surface 52 has a downwardly convex curve, whereas the rear side has an upwardly convex curve. . Due to such a structure of the wind direction adjusting member lower surface 52, the rear side of the convex curve on the wind direction adjusting member lower surface 52 is recessed upward to form a step, and the recessed step portion is the recessed portion 57. is there.

  The wind direction adjusting member 50 is attached so that the lower edge 27b of the air outlet 27 enters the recess 57 formed in the wind direction adjusting member lower surface 52 when the second wind direction is in the first posture. Accordingly, the front end 55 of the airflow direction adjusting member 50 can be moved further by the amount of the lower edge 27b entering the indented portion 57 as compared with the case where the indented portion 57 is not provided on the airflow direction adjusting member lower surface 52. As a result, the presence of the recess 57 compared to the case where the recess 57 is not present allows the air flow to follow the installation side wall WL from a higher position.

(5) Structure of the lower edge 27b of the air outlet 27 As shown in FIG. 14, the lower edge 27b is formed with a receding portion 72 that is retracted rearward and a groove portion 73 that is recessed rearward. . Compared to the case where the lower edge 27b is cut straight and vertically, or the lower edge 27b is formed to protrude forward as it goes downward, the receding portion 72 is formed. The front end 55 of the wind direction adjusting member 50 can be moved further rearward. In other words, it is possible to take a posture in which the wind direction adjusting member upper surface 51 is rotated backward with respect to the vertical surface. As a result, in the second wind direction, the wind direction adjusting member 50 can take a first posture in which the airflow is made to flow along the installation side wall WL from a higher position than when the receding portion 72 is not formed.

  When the first posture is taken, a gap is formed between the lower edge 27b and the wind direction adjusting member lower surface 52. When cold air flows through this gap, condensation may occur on the lower edge 27b and the wind direction adjusting member 50 depending on environmental conditions. The groove part 73 plays the role which disturbs the airflow which arises in this clearance gap. Condensation is less likely to occur when the airflow generated in the gap is disturbed and the air is agitated.

(6) Modification (6-1) Modification A
In the above embodiment, the case where the recess 57 is formed in a step on the lower surface 52 of the wind direction adjusting member has been described. However, the recess is formed like the inclined end surface 57A of the wind direction adjusting member 50A shown in FIGS. The part can also be formed by the inclined end face 57A. In a cross-sectional shape obtained by cutting the airflow direction adjusting member 50A along a plane perpendicular to the left-right direction, the front side of the airflow direction adjusting member lower surface 52A draws a gentle curve that protrudes downward, whereas the rear side draws a straight line with a large slope. Yes. With such a structure of the wind direction adjusting member lower surface 52A, a recess is formed by the inclined end surface 57A on the rear side of the wind direction adjusting member lower surface 52A.

  When the airflow direction adjusting member 50A takes the first posture, the inclined end surface 74 is also formed on the lower edge 27b of the air outlet 27 facing the inclined end surface 57A of the recess. The inclined end surface 57A of the recess and the inclined end surface 74 of the lower edge 27b are configured to be parallel to each other when the wind direction adjusting member 50A rotates rearward and the front end 55 moves rearward as much as possible. Is preferred. In addition, the groove part 73 demonstrated in the said embodiment may be formed in the inclination end surface of this lower edge 27b.

(7) Features (7-1)
According to the wall-mounted air conditioner indoor unit 10 of the present embodiment, when the airflow direction adjusting members 50, 50A take the first posture, the air outlets 27 are formed in the recessed portions 57, 57A of the airflow direction adjusting members 50, 50A. The lower edge 27b enters. For example, the space surrounded by the two-dot chain line and the wind direction adjusting member lower surfaces 52 and 52A shown in FIGS. 10 and 16 is a place where the recessed portions 57 and 57A are recessed. Since the lower edge 27b enters the recessed portions of the recessed portions 57 and 57A, the range of the rotation operation can be increased, so that the restriction of airflow control for ensuring comfort can be relaxed. Further, in the air conditioner indoor unit 10, the recessed portions 57 and 57A are formed inconspicuously on the wind direction adjusting member lower surfaces 52 and 52A, so that the design can be kept good. In addition, the plane shown with the dashed-two dotted line is formed, for example, extending the plane before and behind the hollow parts 57 and 57A.

(7-2)
As shown in FIG. 14, the casing 11 of the air conditioning indoor unit 10 is the lower end 27 b of the air outlet 27 and the rear end portion of the airflow direction adjustment member lower surface 52 of the airflow direction adjustment member 50 in the first posture. A retreating portion 72 corresponding to the shape of the airflow direction adjusting member lower surface 52 is formed at a position facing the front surface. Since the retreating portion 72 is provided corresponding to the shape of the airflow direction adjusting member lower surface 52, the rotation range to the rear side of the airflow direction adjusting member 50 is increased as compared with the case where the retreating portion 72 is not provided. be able to. As a result, the restriction on the air flow control of the air conditioning indoor unit 10 can be relaxed by the amount that the rotation range is increased.

(7-3)
As shown in FIG. 14, a groove 73 provided on the lower edge 27 b of the air outlet 27 of the casing 11 is formed to face the gap between the wind direction adjusting member 50 and the casing 11. As a result, the airflow flowing through the gap between the wind direction adjusting member 50 and the casing 11 can be agitated, and the groove 73 can suppress the occurrence of condensation in the gap formed between the wind direction adjusting member 50 and the casing 11. it can.

(7-4)
As shown in FIGS. 15 and 16, since the inclined end surface 57A of the recess of the airflow direction adjusting member 50A and the inclined end surface 74 of the casing 11 face each other when the airflow direction adjusting member 50A is in the first posture, The rotation range to the rear side of the wind direction adjusting member 50A can be increased. The restriction on the air flow control of the air conditioning indoor unit 10 can be relaxed by the amount of the rotation range increased by the inclined end surfaces of the wind direction adjusting member 50 and the casing 11.

(7-5)
The strength of the rear end portion of the wind direction adjusting member 50 is reduced by the recess portion 57 at the rear end portion of the wind direction adjusting member 50 as compared with the case where the hollow portion 57 is not provided in the wind direction adjusting member 50. By providing the flange 59 on the side of the recess 57, the wind direction adjusting member 50 is reinforced by the flange 59, and even if the recess 57 is provided at the rear end of the wind direction adjusting member 50, the deformation of the wind direction adjusting member 50 is suppressed. be able to. By reinforcing the wind direction adjusting member 50 by the flange 59, it is possible to prevent the wind direction adjusting function from being deteriorated due to the deformation of the wind direction adjusting member 50 and to prevent the design of the wind direction adjusting member 50 from being deteriorated by the deformation of the wind direction adjusting member 50. Can do.

DESCRIPTION OF SYMBOLS 10 Air-conditioning indoor unit 11 Casing 16 Bottom frame 16b Scroll air blowing flow path 16c Flow path upper surface 16d Flow path lower surface 27 Outlet 27a Upper edge 27b Lower edge 30 Second auxiliary flap 40 First auxiliary flap 50, 50A Airflow direction adjusting member 51 Wind direction Adjustment member upper surface 52 Airflow direction adjustment member lower surface 55 Front end 56 Rear end 57 Recessed portion 57A Inclined end surface (recessed portion)
59 Flange 72 Backward part 73 Groove part

JP 2007-93092 A

Claims (5)

A casing (11) in which a rear surface portion is fixed to the installation side wall, and a blowout port (27) for blowing out conditioned air is formed on the front side of the rear surface portion;
The rear end (56) close to the center of rotation set at the lower edge (27b) of the outlet of the casing, the front end (55) far from the center of rotation, and the wind direction of the air blown out from the outlet are adjusted. A wind direction adjusting member (50) having an upper surface (51) and a lower surface (52) opposite to the upper surface, and having a recessed portion (57, 57A) recessed upward at a rear end portion of the lower surface. , 50A)
When the wind direction adjusting member generates a first air stream that is directed toward the installation side wall from the blower outlet, the upper surface is rotated rearward from the vertical surface, and the front end is positioned rearward of the rear end. When taking the first posture and generating a second airflow that is directed forward of the air outlet, the upper surface is rotated forward with respect to the vertical surface, and the front end is positioned in front of the rear end. A wall-mounted air-conditioning indoor unit that is configured to be able to take a posture and is attached so that the lower edge of the air outlet enters the recess when the first posture is taken. The casing is in the shape of the lower surface of the airflow direction adjusting member at a position that is the lower edge of the air outlet and faces the rear end portion of the lower surface of the airflow direction adjusting member in the first posture. A corresponding recess (72) is formed,
The wall-mounted air conditioning indoor unit according to claim 1. In the casing, a groove (73) is formed at a position facing the rear end of the lower surface of the wind direction adjusting member that is the lower edge of the air outlet and takes the first posture.
The wall-hanging air conditioning indoor unit according to claim 1 or 2. The wind direction adjusting member and the casing are formed with inclined end surfaces at respective locations facing each other when the wind direction adjusting member takes the first posture.
The wall-mounted air conditioning indoor unit according to claim 1. The wind direction adjusting member has a flange (59) on a side portion of the recess,
The casing pivotally supports the flange so that the wind direction adjusting member can rotate in the vertical direction.
The wall-mounted air conditioning indoor unit according to any one of claims 1 to 4.

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