JP2013050282A - Air-conditioning indoor unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air-conditioning indoor unit which suppresses leakage of air blown out from a gap between an back end of a vertical wind direction adjusting blade and a blowout outlet.SOLUTION: In an air-conditioning indoor unit 10, when a vertical wind direction adjusting blade 30 juts out to the front of a blowout outlet 15 and takes a posture substantially in a horizontal condition, an auxiliary blade 130 narrows a gap between a back end of the vertical wind direction adjusting blade 30 and the blowout outlet 15, so that air leaked behind the blowout outlet 15 from the gap between the back end of the vertical wind direction adjusting blade 30 and the blowout outlet 15 is blocked by the auxiliary blade 130 and flown along a slant of the auxiliary blade 130. As the result, a phenomenon that a wall becomes dirty by the blown out air is suppressed.

Description

  The present invention relates to an air conditioning indoor unit.

  The air blown from the air outlet of the air conditioning indoor unit can be changed in the blowing direction by the vertical airflow direction adjusting blades arranged in the vicinity of the air outlet. For example, in an indoor unit disclosed in Patent Document 1 (Japanese Patent Application Laid-Open No. 2011-33299), during operation, the up / down airflow direction adjusting blades protrude forward of the air outlet and are substantially parallel to the opening surface of the air outlet. Either the first open state or the second open state inclined at a predetermined angle with respect to the opening surface is brought out, and air conditioned air is blown out in a target direction.

  However, if the vertical wind direction adjusting blades are parallel to the opening surface of the air outlet during operation, the blown air is likely to leak backward from the gap between the rear end of the vertical air direction adjusting blades and the air outlet. Since the leaked air hits the wall behind the air outlet, it may contaminate the wall.

  The subject of this invention is providing the air-conditioning indoor unit which suppressed that blowing air leaked from the clearance gap between the rear end of an up-and-down wind direction adjustment blade | wing and a blower outlet.

  The air conditioning indoor unit according to the first aspect of the present invention includes an up / down airflow direction adjusting blade and an auxiliary blade. The vertical direction adjustment blade can change the direction of the air blown out from the air outlet. The auxiliary blade reduces the gap between the rear end of the vertical airflow direction adjusting blade and the outlet when the posture is close to the horizontal state. Further, the auxiliary blade is stored in a predetermined position when the operation is stopped.

  In this air conditioning indoor unit, air that leaks from the gap between the rear end of the vertical airflow direction adjusting blade and the air outlet to the rear of the air outlet is blocked by the auxiliary blade and flows along the inclination of the auxiliary blade. As a result, the phenomenon that the wall is soiled by the blown air is suppressed.

  The air conditioner indoor unit according to the second aspect of the present invention is the air conditioner indoor unit according to the first aspect, and the vertical wind direction adjusting blades urge toward the front of the outlet during operation.

  In this air conditioning indoor unit, since the vertical airflow direction adjustment blades urge toward the front of the air outlet, the blown air is likely to leak behind the air outlet, but the auxiliary air blade described in the first aspect is applied, so that the air leaks. Is blocked by the auxiliary blades and flows along the inclination of the auxiliary blades. As a result, the phenomenon that the wall is soiled by the blown air is suppressed.

  An air conditioning indoor unit according to a third aspect of the present invention is the air conditioning indoor unit according to the second aspect, wherein the auxiliary blade is housed above the vertical airflow direction adjusting blade when operation is stopped.

  In this air conditioning indoor unit, when the operation is stopped, the auxiliary blades are covered with the vertical airflow direction adjusting blades and cannot be seen from the outside, so that the appearance of the air conditioning indoor unit is impaired by the auxiliary blades.

  The air conditioning indoor unit according to the fourth aspect of the present invention is the air conditioning indoor unit according to the third aspect, and the vertical airflow direction adjusting blade moves to a closed position that closes the outlet when operation is stopped. The auxiliary blade moves upward from the closed position before the vertical airflow direction adjusting blade reaches the closed position.

  In this air conditioning indoor unit, the auxiliary blades move above the closed position of the vertical airflow direction adjustment blades, so that the vertical adjustment blades and auxiliary blades can be stored in the same space, and space saving is achieved.

  An air conditioning indoor unit according to a fifth aspect of the present invention is the air conditioning indoor unit according to the fourth aspect, wherein the auxiliary blade is rotatably supported in the vicinity of the outlet, and when the operation is stopped, the vertical airflow direction adjusting blade It rotates to a position that is substantially parallel to the posture in the closed position.

  In this air-conditioning indoor unit, when the operation is stopped, the air-conditioning indoor unit rotates to a position that is substantially parallel to the posture of the up / down airflow direction adjusting blade in the closed position, so that interference with other members arranged in the outlet is minimized. be able to.

  In the air conditioning indoor unit according to the first aspect or the second aspect of the present invention, air that leaks behind the blowout port from the gap between the rear end of the vertical airflow direction adjustment blade and the blowout port is blocked by the auxiliary blades and is inclined to the auxiliary blades. Since it flows along, the phenomenon that a wall becomes dirty with blowing air is suppressed.

  In the air conditioning indoor unit according to the third aspect of the present invention, when the operation is stopped, the auxiliary blades are covered with the vertical airflow direction adjusting blades and are not visible from the outside, so that the appearance of the air conditioning indoor unit is impaired by the auxiliary blades. The

  In the air conditioning indoor unit pertaining to the fourth aspect of the present invention, the auxiliary blades move upward from the closed position of the vertical airflow direction adjustment blades, so that the vertical adjustment blades and auxiliary blades can be stored in the same space, saving Space can be achieved.

  In the air-conditioning indoor unit according to the fifth aspect of the present invention, when the operation is stopped, the air-conditioning indoor unit rotates to a position substantially parallel to the posture of the vertical airflow direction adjustment blade in the closed position. Interference can be minimized.

It is an air conditioning indoor unit concerning one embodiment of the present invention, and is a perspective view of the air conditioning indoor unit at the time of operation. FIG. 2 is a cross-sectional view of the air conditioning indoor unit according to FIG. 1 when the operation is stopped. The side view of the lower part of an air-conditioning indoor unit when an up-and-down wind direction adjustment blade | wing opens the blower outlet. The side view of the up-and-down wind direction adjustment blade | wing of the bottom blowing attitude | position taken at the time of heating operation. The side view of the up-and-down wind direction adjustment blade | wing of the top blowing attitude | position taken at the time of heating operation.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The following embodiments are specific examples of the present invention and do not limit the technical scope of the present invention.

(1) Configuration of Air Conditioning Indoor Unit 10 FIG. 1 is an air conditioning indoor unit 10 according to an embodiment of the present invention, and is a perspective view of the air conditioning indoor unit 10 during operation. FIG. 2 is a cross-sectional view of the air conditioning indoor unit 10 according to FIG. 1 when the operation is stopped.

  1 and 2, the air conditioning indoor unit 10 is a wall-hanging indoor unit, and includes an indoor heat exchanger 11, an indoor fan 12, a main body casing 13, a bottom frame 17, a filter 25, and a control unit 40. .

  The main body casing 13 forms a three-dimensional space by the front grill 13a, the front panel 13b, and the back plate 13c, and the indoor heat exchanger 11, the indoor fan 12, the bottom frame 17, the filter 25, and the control unit 40 are included in the three-dimensional space. It is settled. The front panel 13b covers the front surface of the front grill 13a, and an upper end of the front panel 13b is rotatably supported by the front grill 13a, and can operate in a hinged manner. The main body casing 13 is attached to the wall via a mounting plate (not shown).

  The indoor heat exchanger 11 and the indoor fan 12 are attached to the bottom frame 17. The indoor heat exchanger 11 exchanges heat with the passing air. In addition, the indoor heat exchanger 11 has an inverted V shape in which both ends are bent downward in a side view, and the indoor fan 12 is located below the indoor heat exchanger 11. The indoor fan 12 is a cross-flow fan, blows air taken in from the room against the indoor heat exchanger 11 and then blows it into the room.

  An air outlet 15 is provided on the lower surface of the main casing 13. A vertical air direction adjusting blade 30 for guiding the air blown from the blower outlet 15 is rotatably attached to the blower outlet 15. The up-and-down air direction adjusting blade 30 is driven by a motor (not shown) and can open and close the air outlet 15 as well as change the air blowing direction. The air outlet 15 is connected to the inside of the main body casing 13 by the air outlet passage 18, and the air outlet passage 18 is formed along the bottom frame 17 from the air outlet 15.

  Moreover, the vertical blade | wing 20 is arrange | positioned at the blowing flow path 18, as shown in FIG. The vertical blades 20 can direct blown air at least in the direction of either the front surface or the side surface of the main body casing 13.

  A filter 25 is disposed between the front grill 13 a of the main casing 13 and the indoor heat exchanger 11. The filter 25 removes dust contained in the air that flows in toward the indoor heat exchanger 11.

  A suction port 22 is provided in the front upper portion of the front grill 13a. The indoor air in the vicinity of the suction port 22 is sucked into the indoor fan 12 through the suction port 22, the filter 25 and the indoor heat exchanger 11 by the operation of the indoor fan 12, and from the blower outlet 18 through the blowout flow path 18 from the indoor fan 12. Blown out.

  The control unit 40 is housed in the front portion of the main casing 13 and controls the rotational speed of the indoor fan 12 and adjusts the opening of the air outlet 15. The opening degree of the air outlet 15 is adjusted via the up / down airflow direction adjusting blade 30 and the auxiliary blade 130.

(2) Detailed configuration (2-1) Vertical blade 20
As shown in FIG. 1, the vertical blade 20 includes a plurality of blade pieces 201 and a connecting rod 203 that connects the plurality of blade pieces 201. Further, as shown in FIG. 2, the vertical blade 20 is disposed in the vicinity of the indoor fan 12 in the blowout flow path 18 rather than the second surface 30 b of the vertical airflow direction adjusting blade 30 in the closed position.

  The blade piece 201 is a plate piece whose area gradually expands from the indoor fan 12 side to the blowout port 15 side of the blowout flow path 18, and a slit hole 201 a into which the connecting rod 203 is inserted is formed on the blowout port 15 side. In addition, a support portion 201b that is supported inside the main body casing 13 is formed at an end portion on the indoor fan 12 side. In addition, the blade piece 201 is formed with two slits 201c extending from the central portion toward the support portion 201b.

  The plurality of blade pieces 201 swing left and right around a state perpendicular to the longitudinal direction of the main casing 13 as the connecting rod 203 horizontally reciprocates along the longitudinal direction of the air outlet 15. The connecting rod 203 is horizontally reciprocated by a motor (not shown).

  The blade piece 201 not only swings but can stop at any angle by stopping the motor after swinging. Therefore, the blade piece 201 is either in a first state (see FIG. 1) in which the air blowing state from the outlet 15 is blown out to the front side of the main body casing 13, or in a second state in which it is blown out to the side surface side of the main body casing 13. Can be switched to.

(2-2) Vertical wind direction adjusting blade 30
The up-and-down air direction adjusting blade 30 is a plate-like member having a substantially rectangular shape as shown in FIG. 1 and FIG. , Called the closed position). The first surface 30 a that can be visually recognized from the outside at the closed position of the vertical airflow direction adjustment blade 30 serves as a part of the lower surface of the main body casing 13.

  Moreover, the 1st front connection part 311, the 2nd front connection part 312 and the 3rd front connection part 313 are provided in the 2nd surface 30b which is the back surface of the 1st surface 30a of the up-and-down wind direction adjustment blade 30 ( (See FIG. 1). The first front connecting part 311, the second front connecting part 312, and the third front connecting part 313 are in the longitudinal direction of the second surface 30 b on the front end side of the second surface 30 b at the closed position of the vertical airflow direction adjusting blade 30. It is arrange | positioned at substantially equal intervals along.

  Furthermore, a first rear connection part 321 and a second rear connection part 322 are provided on the second surface 30 b of the vertical airflow direction adjusting blade 30. The first rear connecting portion 321 and the second rear connecting portion 322 are arranged at the center in the longitudinal direction of the second surface 30 b on the rear end side of the second surface 30 b at the closed position of the up-and-down airflow direction adjusting blade 30.

  One end of an arc-shaped rack member 46 is coupled to each of the first front coupling portion 311, the second front coupling portion 312, and the third front coupling portion 313. The rack member 46 is formed with a rack 46a of a rack and pinion mechanism on the convex side surface, and the rack member 46 takes a posture in which the rack 46a is directed obliquely above the air outlet 15.

  Further, as shown in FIG. 1, one end of a foldable link member 47 is connected to each of the first rear connection part 321 and the second rear connection part 322. The link member 47 has a configuration in which ends of two rod-like members are joined to each other in a freely rotatable manner. Of the two rod-like members of the link member 47, the upper side of the node 47c is called the upper link 47a, and the lower side is called the lower link 47b.

  FIG. 3 is a side view of the lower part of the air conditioning indoor unit 10 when the up / down airflow direction adjusting blade 30 opens the air outlet 15. In FIG. 3, a first stepping motor 51 is mounted inside the main body casing 13, and a pinion gear 51 a is attached to the rotation shaft of the first stepping motor 51. The pinion gear 51a meshes with the rack 46a, and the first stepping motor 51 rotates the pinion gear 51a clockwise as viewed from the front in FIG. 3, so that the rack member 46 moves toward the front of the air outlet 15 and moves up and down. The front part of the wind direction adjusting blade 30 approaches toward the front of the air outlet 15. This is called the first operation of the first stepping motor 51.

  Conversely, the first stepping motor 51 rotates the pinion gear 51a counterclockwise as viewed from the front of FIG. 3, so that the rack member 46 moves backward toward the back side of the main casing 13. This is called a second operation of the first stepping motor 51.

  Further, a second stepping motor 52 is mounted inside the main body casing 13, and a drive gear 52 a is attached to the rotation shaft of the second stepping motor 52. Further, a driven gear 48 is provided at the end of the upper link 47a of the link member 47, and the second stepping motor 52 rotates the driven gear 48 in the clockwise direction as viewed from the front in FIG. 3 via the driving gear 52a. As a result, the central angle formed by the upper link 47a and the lower link 47b is enlarged around the node 47c, and the rear portion of the vertical airflow direction adjusting blade 30 approaches toward the front of the air outlet 15. This is called the first operation of the second stepping motor 52.

  Conversely, the drive gear 52a rotates the driven gear 48 counterclockwise as viewed from the front in FIG. 3, thereby reducing the center angle formed by the upper link 47a and the lower link 47b around the node 47c and adjusting the vertical wind direction. The rear part of the blade 30 moves backward toward the air outlet 15. This is called a second operation of the second stepping motor 52.

  Therefore, when the first operation of the first stepping motor 51 and the first operation of the second stepping motor 52 are executed simultaneously or successively, the up / down airflow direction adjusting blade 30 approaches the front of the air outlet 15. put out. Further, when the second operation of the first stepping motor 51 and the second operation of the second stepping motor 52 are executed simultaneously or successively, the up / down airflow direction adjusting blade 30 moves backward toward the air outlet 15.

  In addition, although the attitude | position of the up-and-down air direction adjustment blade | wing 30 shown in FIG. 3 is an up-and-down blowing attitude | position taken at the time of dehumidification operation etc., the 1st operation | movement of the 1st stepping motor 51, 2nd operation | movement, 2nd stepping Various forms may be taken depending on the combination of the first operation and the second operation of the motor 52. Hereinafter, typical postures will be described with reference to the drawings.

  FIG. 4 is a side view of the up-and-down air direction adjusting blade 30 in the down-blowing posture taken during the heating operation. FIG. 5 is a side view of the up-and-down air direction adjusting blade 30 in the upward blowing posture that is taken during the heating operation. In FIG. 4, the bottom blowing posture during the heating operation of the up / down air direction adjusting blade 30 is based on the closed position, and the first stepping motor 51 rotates the pinion gear 51a clockwise by an angle A1 when viewed from the front in FIG. The second stepping motor 52 is realized by rotating the driven gear 48 by an angle B1 in the clockwise direction in the front view of FIG.

  Further, in FIG. 5, the top blowing posture of the vertical airflow direction adjusting blade 30 during the heating operation is based on the closed position, and the first stepping motor 51 moves the pinion gear 51 a clockwise by an angle A1 when viewed from the front in FIG. 3. This is realized by rotating the second stepping motor 52 by rotating the driven gear 48 by an angle B2 in the clockwise direction in the front view of FIG. Note that angle B2 ≧ angle B1.

(2-3) Auxiliary blades 130
In FIG. 1, two auxiliary blades 130 having a rotation axis parallel to the long side are provided at the rear portion of the air outlet 15. The two auxiliary blades 130 are adjacent to each other along the longitudinal direction of the air outlet 15.

  Two central support portions 131 that support one end of the rotating shaft of the auxiliary blade 130 are provided at a position facing the central portion of the air outlet 15 in the main body casing 13. Further, a side support portion 132 that supports the other end of the rotation shaft of the auxiliary blade 130 is provided at the rear corner of the air outlet 15 in the main body casing 13.

  As shown in FIG. 2, when the up / down airflow direction adjustment blade 30 is in the closed position, the auxiliary blade 130 is stored above the up / down airflow direction adjustment blade 30 in a posture substantially parallel to the up / down airflow direction adjustment blade 30, It is not visible from the outside. At this time, since the auxiliary blades 130 are close to each other so as to overlap the second surface 30b of the vertical airflow direction adjusting blades 30, the space in which the auxiliary blades 130 occupy the outlet flow path 18 is small, and the vicinity of the outlet 15 and the outlet flow Interference with other members (for example, vertical blades 20) arranged in the path 18 is minimized.

  In addition, when the up / down air direction adjusting blade 30 adopts the up / down blowing posture during the dehumidifying operation as shown in FIG. 3, the tip of the auxiliary blade 130 rotates so as to face the rear end of the up / down air direction adjusting blade 30. According to the applicant's research, when the up / down airflow direction adjusting blade 30 takes the up / down blowing posture, the air blown out from the air outlet 15 hits the second surface 30b of the up / down airflow direction adjusting blade 30 and is inclined obliquely upward. Divided into downward air. However, since the gap between the rear end of the up-and-down airflow direction adjusting blade 30 and the outlet 15 is large, a part of the air directed obliquely downward flows toward the wall behind the outlet 15 (wall to which the air conditioning indoor unit 10 is attached). Causes the walls to become dirty.

  In the case of this embodiment, since the auxiliary blades 130 are interposed in the gap between the rear end of the up / down airflow direction adjusting blade 30 and the outlet 15, the blowout air that tries to leak backward through the gap is assisted. The blades 130 block. As a result, the wall surface is prevented from being contaminated by the blown air.

  Further, when the up / down airflow direction adjusting blade 30 adopts the bottom blowing posture in the heating operation as shown in FIG. 4 or when taking the upwinding posture in the heating operation as shown in FIG. 5, the auxiliary blade 130 adjusts the up / down airflow direction. It rotates so as to be substantially parallel to the blade 30. In this case, the auxiliary blade 130 not only blocks the blown air that leaks backward, but also guides the blown air in a direction parallel to the vertical airflow direction adjusting blade 30.

(3) Features (3-1)
In the air conditioning indoor unit 10, the auxiliary blade 130 is located between the rear end of the vertical airflow direction adjusting blade 30 and the air outlet 15 when the vertical airflow direction adjusting blade 30 protrudes forward of the air outlet 15 and takes a posture close to a horizontal state. Therefore, air leaking from the gap between the rear end of the vertical airflow direction adjusting blade 30 and the outlet 15 to the rear of the outlet 15 is blocked by the auxiliary blade 130 and flows along the inclination of the auxiliary blade 130. Become. As a result, the phenomenon that the wall is soiled by the blown air is suppressed.

(3-2)
Further, since the auxiliary blade 130 is housed above the vertical airflow direction adjusting blade 30 when the operation is stopped, the auxiliary blade 130 is covered with the vertical airflow direction adjusting blade 30 and cannot be seen from the outside. Therefore, a situation in which the appearance of the air conditioning indoor unit is impaired by the auxiliary blade 130 is avoided.

(3-3)
Further, since the auxiliary blade 130 moves upward from the closed position of the vertical wind direction adjusting blade 30 before the vertical wind direction adjusting blade 30 reaches the closed position, the vertical direction adjusting blade 30 and the auxiliary blade 130 are stored in the same space. It is possible to save space.

(3-4)
In addition, the auxiliary blade 130 is rotatably supported in the vicinity of the air outlet 15, and when the operation is stopped, the auxiliary blade 130 is rotated to a position that is substantially parallel to the posture in the closed position of the vertical airflow direction adjusting blade 30. Interference with other members (for example, the vertical blades 20) disposed in the space is minimized.

  As described above, according to the present invention, the auxiliary vane 130 suppresses the flow of blown air from the blowout port 15 toward the rear thereof, so that the air conditioning that requires a mode in which the blown air does not flow in a predetermined direction. Useful for equipment.

10 Air-conditioning indoor unit 15 Air outlet 30 Vertical wind direction adjusting blade 130 Auxiliary blade

JP 2011-33299 A

  The present invention relates to an air conditioning indoor unit.

  The air blown from the air outlet of the air conditioning indoor unit can be changed in the blowing direction by the vertical airflow direction adjusting blades arranged in the vicinity of the air outlet. For example, in an indoor unit disclosed in Patent Document 1 (Japanese Patent Application Laid-Open No. 2011-33299), during operation, the up / down airflow direction adjusting blades protrude forward of the air outlet and are substantially parallel to the opening surface of the air outlet. Either the first open state or the second open state inclined at a predetermined angle with respect to the opening surface is brought out, and air conditioned air is blown out in a target direction.

  However, if the vertical wind direction adjusting blades are parallel to the opening surface of the air outlet during operation, the blown air is likely to leak backward from the gap between the rear end of the vertical air direction adjusting blades and the air outlet. Since the leaked air hits the wall behind the air outlet, it may contaminate the wall.

  The subject of this invention is providing the air-conditioning indoor unit which suppressed that blowing air leaked from the clearance gap between the rear end of an up-and-down wind direction adjustment blade | wing and a blower outlet.

The air conditioning indoor unit according to the first aspect of the present invention includes an up / down airflow direction adjusting blade and an auxiliary blade. The vertical direction adjustment blade can change the direction of the air blown out from the air outlet. The auxiliary blade is stored in a predetermined position when the operation is stopped . In addition, the auxiliary blade reduces the gap between the rear end of the vertical airflow direction adjusting blade and the outlet when the posture is close to the horizontal state during operation .

  In this air conditioning indoor unit, air that leaks from the gap between the rear end of the vertical airflow direction adjusting blade and the air outlet to the rear of the air outlet is blocked by the auxiliary blade and flows along the inclination of the auxiliary blade. As a result, the phenomenon that the wall is soiled by the blown air is suppressed.

  The air conditioner indoor unit according to the second aspect of the present invention is the air conditioner indoor unit according to the first aspect, and the vertical wind direction adjusting blades urge toward the front of the outlet during operation.

  In this air conditioning indoor unit, since the vertical airflow direction adjustment blades urge toward the front of the air outlet, the blown air is likely to leak behind the air outlet, but the auxiliary air blade described in the first aspect is applied, so that the air leaks. Is blocked by the auxiliary blades and flows along the inclination of the auxiliary blades. As a result, the phenomenon that the wall is soiled by the blown air is suppressed.

  An air conditioning indoor unit according to a third aspect of the present invention is the air conditioning indoor unit according to the second aspect, wherein the auxiliary blade is housed above the vertical airflow direction adjusting blade when operation is stopped.

  In this air conditioning indoor unit, when the operation is stopped, the auxiliary blades are covered with the vertical airflow direction adjusting blades and cannot be seen from the outside, so that the appearance of the air conditioning indoor unit is impaired by the auxiliary blades.

  The air conditioning indoor unit according to the fourth aspect of the present invention is the air conditioning indoor unit according to the third aspect, and the vertical airflow direction adjusting blade moves to a closed position that closes the outlet when operation is stopped. The auxiliary blade moves upward from the closed position before the vertical airflow direction adjusting blade reaches the closed position.

  In this air conditioning indoor unit, the auxiliary blades move above the closed position of the vertical airflow direction adjustment blades, so that the vertical adjustment blades and auxiliary blades can be stored in the same space, and space saving is achieved.

  An air conditioning indoor unit according to a fifth aspect of the present invention is the air conditioning indoor unit according to the fourth aspect, wherein the auxiliary blade is rotatably supported in the vicinity of the outlet, and when the operation is stopped, the vertical airflow direction adjusting blade It rotates to a position that is substantially parallel to the posture in the closed position.

  In this air-conditioning indoor unit, when the operation is stopped, the air-conditioning indoor unit rotates to a position that is substantially parallel to the posture of the up / down airflow direction adjusting blade in the closed position, so that interference with other members arranged in the outlet is minimized. be able to.

  In the air conditioning indoor unit according to the first aspect or the second aspect of the present invention, air that leaks behind the blowout port from the gap between the rear end of the vertical airflow direction adjustment blade and the blowout port is blocked by the auxiliary blades and is inclined to the auxiliary blades. Since it flows along, the phenomenon that a wall becomes dirty with blowing air is suppressed.

  In the air conditioning indoor unit according to the third aspect of the present invention, when the operation is stopped, the auxiliary blades are covered with the vertical airflow direction adjusting blades and are not visible from the outside, so that the appearance of the air conditioning indoor unit is impaired by the auxiliary blades. The

  In the air conditioning indoor unit pertaining to the fourth aspect of the present invention, the auxiliary blades move upward from the closed position of the vertical airflow direction adjustment blades, so that the vertical adjustment blades and auxiliary blades can be stored in the same space, saving Space can be achieved.

  In the air-conditioning indoor unit according to the fifth aspect of the present invention, when the operation is stopped, the air-conditioning indoor unit rotates to a position substantially parallel to the posture of the vertical airflow direction adjustment blade in the closed position. Interference can be minimized.

It is an air conditioning indoor unit concerning one embodiment of the present invention, and is a perspective view of the air conditioning indoor unit at the time of operation. FIG. 2 is a cross-sectional view of the air conditioning indoor unit according to FIG. 1 when the operation is stopped. The side view of the lower part of an air-conditioning indoor unit when an up-and-down wind direction adjustment blade | wing opens the blower outlet. The side view of the up-and-down wind direction adjustment blade | wing of the bottom blowing attitude | position taken at the time of heating operation. The side view of the up-and-down wind direction adjustment blade | wing of the top blowing attitude | position taken at the time of heating operation.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The following embodiments are specific examples of the present invention and do not limit the technical scope of the present invention.

(1) Configuration of Air Conditioning Indoor Unit 10 FIG. 1 is an air conditioning indoor unit 10 according to an embodiment of the present invention, and is a perspective view of the air conditioning indoor unit 10 during operation. FIG. 2 is a cross-sectional view of the air conditioning indoor unit 10 according to FIG. 1 when the operation is stopped.

  1 and 2, the air conditioning indoor unit 10 is a wall-hanging indoor unit, and includes an indoor heat exchanger 11, an indoor fan 12, a main body casing 13, a bottom frame 17, a filter 25, and a control unit 40. .

  The main body casing 13 forms a three-dimensional space by the front grill 13a, the front panel 13b, and the back plate 13c, and the indoor heat exchanger 11, the indoor fan 12, the bottom frame 17, the filter 25, and the control unit 40 are included in the three-dimensional space. It is settled. The front panel 13b covers the front surface of the front grill 13a, and an upper end of the front panel 13b is rotatably supported by the front grill 13a, and can operate in a hinged manner. The main body casing 13 is attached to the wall via a mounting plate (not shown).

  The indoor heat exchanger 11 and the indoor fan 12 are attached to the bottom frame 17. The indoor heat exchanger 11 exchanges heat with the passing air. In addition, the indoor heat exchanger 11 has an inverted V shape in which both ends are bent downward in a side view, and the indoor fan 12 is located below the indoor heat exchanger 11. The indoor fan 12 is a cross-flow fan, blows air taken in from the room against the indoor heat exchanger 11 and then blows it into the room.

  An air outlet 15 is provided on the lower surface of the main casing 13. A vertical air direction adjusting blade 30 for guiding the air blown from the blower outlet 15 is rotatably attached to the blower outlet 15. The up-and-down air direction adjusting blade 30 is driven by a motor (not shown) and can open and close the air outlet 15 as well as change the air blowing direction. The air outlet 15 is connected to the inside of the main body casing 13 by the air outlet passage 18, and the air outlet passage 18 is formed along the bottom frame 17 from the air outlet 15.

  Moreover, the vertical blade | wing 20 is arrange | positioned at the blowing flow path 18, as shown in FIG. The vertical blades 20 can direct blown air at least in the direction of either the front surface or the side surface of the main body casing 13.

  A filter 25 is disposed between the front grill 13 a of the main casing 13 and the indoor heat exchanger 11. The filter 25 removes dust contained in the air that flows in toward the indoor heat exchanger 11.

  A suction port 22 is provided in the front upper portion of the front grill 13a. The indoor air in the vicinity of the suction port 22 is sucked into the indoor fan 12 through the suction port 22, the filter 25 and the indoor heat exchanger 11 by the operation of the indoor fan 12, and from the blower outlet 18 through the blowout flow path 18 from the indoor fan 12. Blown out.

  The control unit 40 is housed in the front portion of the main casing 13 and controls the rotational speed of the indoor fan 12 and adjusts the opening of the air outlet 15. The opening degree of the air outlet 15 is adjusted via the up / down airflow direction adjusting blade 30 and the auxiliary blade 130.

(2) Detailed configuration (2-1) Vertical blade 20
As shown in FIG. 1, the vertical blade 20 includes a plurality of blade pieces 201 and a connecting rod 203 that connects the plurality of blade pieces 201. Further, as shown in FIG. 2, the vertical blade 20 is disposed in the vicinity of the indoor fan 12 in the blowout flow path 18 rather than the second surface 30 b of the vertical airflow direction adjusting blade 30 in the closed position.

  The blade piece 201 is a plate piece whose area gradually expands from the indoor fan 12 side to the blowout port 15 side of the blowout flow path 18, and a slit hole 201 a into which the connecting rod 203 is inserted is formed on the blowout port 15 side. In addition, a support portion 201b that is supported inside the main body casing 13 is formed at an end portion on the indoor fan 12 side. In addition, the blade piece 201 is formed with two slits 201c extending from the central portion toward the support portion 201b.

  The plurality of blade pieces 201 swing left and right around a state perpendicular to the longitudinal direction of the main casing 13 as the connecting rod 203 horizontally reciprocates along the longitudinal direction of the air outlet 15. The connecting rod 203 is horizontally reciprocated by a motor (not shown).

  The blade piece 201 not only swings but can stop at any angle by stopping the motor after swinging. Therefore, the blade piece 201 is either in a first state (see FIG. 1) in which the air blowing state from the outlet 15 is blown out to the front side of the main body casing 13, or in a second state in which it is blown out to the side surface side of the main body casing 13. Can be switched to.

(2-2) Vertical wind direction adjusting blade 30
The up-and-down air direction adjusting blade 30 is a plate-like member having a substantially rectangular shape as shown in FIG. 1 and FIG. , Called the closed position). The first surface 30 a that can be visually recognized from the outside at the closed position of the vertical airflow direction adjustment blade 30 serves as a part of the lower surface of the main body casing 13.

  Moreover, the 1st front connection part 311, the 2nd front connection part 312 and the 3rd front connection part 313 are provided in the 2nd surface 30b which is the back surface of the 1st surface 30a of the up-and-down wind direction adjustment blade 30 ( (See FIG. 1). The first front connecting part 311, the second front connecting part 312, and the third front connecting part 313 are in the longitudinal direction of the second surface 30 b on the front end side of the second surface 30 b at the closed position of the vertical airflow direction adjusting blade 30. It is arrange | positioned at substantially equal intervals along.

  Furthermore, a first rear connection part 321 and a second rear connection part 322 are provided on the second surface 30 b of the vertical airflow direction adjusting blade 30. The first rear connecting portion 321 and the second rear connecting portion 322 are arranged at the center in the longitudinal direction of the second surface 30 b on the rear end side of the second surface 30 b at the closed position of the up-and-down airflow direction adjusting blade 30.

  One end of an arc-shaped rack member 46 is coupled to each of the first front coupling portion 311, the second front coupling portion 312, and the third front coupling portion 313. The rack member 46 is formed with a rack 46a of a rack and pinion mechanism on the convex side surface, and the rack member 46 takes a posture in which the rack 46a is directed obliquely above the air outlet 15.

  Further, as shown in FIG. 1, one end of a foldable link member 47 is connected to each of the first rear connection part 321 and the second rear connection part 322. The link member 47 has a configuration in which ends of two rod-like members are joined to each other in a freely rotatable manner. Of the two rod-like members of the link member 47, the upper side of the node 47c is called the upper link 47a, and the lower side is called the lower link 47b.

  FIG. 3 is a side view of the lower part of the air conditioning indoor unit 10 when the up / down airflow direction adjusting blade 30 opens the air outlet 15. In FIG. 3, a first stepping motor 51 is mounted inside the main body casing 13, and a pinion gear 51 a is attached to the rotation shaft of the first stepping motor 51. The pinion gear 51a meshes with the rack 46a, and the first stepping motor 51 rotates the pinion gear 51a clockwise as viewed from the front in FIG. 3, so that the rack member 46 moves toward the front of the air outlet 15 and moves up and down. The front part of the wind direction adjusting blade 30 approaches toward the front of the air outlet 15. This is called the first operation of the first stepping motor 51.

  Conversely, the first stepping motor 51 rotates the pinion gear 51a counterclockwise as viewed from the front of FIG. 3, so that the rack member 46 moves backward toward the back side of the main casing 13. This is called a second operation of the first stepping motor 51.

  Further, a second stepping motor 52 is mounted inside the main body casing 13, and a drive gear 52 a is attached to the rotation shaft of the second stepping motor 52. Further, a driven gear 48 is provided at the end of the upper link 47a of the link member 47, and the second stepping motor 52 rotates the driven gear 48 in the clockwise direction as viewed from the front in FIG. 3 via the driving gear 52a. As a result, the central angle formed by the upper link 47a and the lower link 47b is enlarged around the node 47c, and the rear portion of the vertical airflow direction adjusting blade 30 approaches toward the front of the air outlet 15. This is called the first operation of the second stepping motor 52.

  Conversely, the drive gear 52a rotates the driven gear 48 counterclockwise as viewed from the front in FIG. 3, thereby reducing the center angle formed by the upper link 47a and the lower link 47b around the node 47c and adjusting the vertical wind direction. The rear part of the blade 30 moves backward toward the air outlet 15. This is called a second operation of the second stepping motor 52.

  Therefore, when the first operation of the first stepping motor 51 and the first operation of the second stepping motor 52 are executed simultaneously or successively, the up / down airflow direction adjusting blade 30 approaches the front of the air outlet 15. put out. Further, when the second operation of the first stepping motor 51 and the second operation of the second stepping motor 52 are executed simultaneously or successively, the up / down airflow direction adjusting blade 30 moves backward toward the air outlet 15.

  In addition, although the attitude | position of the up-and-down air direction adjustment blade | wing 30 shown in FIG. 3 is an up-and-down blowing attitude | position taken at the time of dehumidification operation etc., the 1st operation | movement of the 1st stepping motor 51, 2nd operation | movement, 2nd stepping Various forms may be taken depending on the combination of the first operation and the second operation of the motor 52. Hereinafter, typical postures will be described with reference to the drawings.

  FIG. 4 is a side view of the up-and-down air direction adjusting blade 30 in the down-blowing posture taken during the heating operation. FIG. 5 is a side view of the up-and-down air direction adjusting blade 30 in the upward blowing posture that is taken during the heating operation. In FIG. 4, the bottom blowing posture during the heating operation of the up / down air direction adjusting blade 30 is based on the closed position, and the first stepping motor 51 rotates the pinion gear 51a clockwise by an angle A1 when viewed from the front in FIG. The second stepping motor 52 is realized by rotating the driven gear 48 by an angle B1 in the clockwise direction in the front view of FIG.

  Further, in FIG. 5, the top blowing posture of the vertical airflow direction adjusting blade 30 during the heating operation is based on the closed position, and the first stepping motor 51 moves the pinion gear 51 a clockwise by an angle A1 when viewed from the front in FIG. 3. This is realized by rotating the second stepping motor 52 by rotating the driven gear 48 by an angle B2 in the clockwise direction in the front view of FIG. Note that angle B2 ≧ angle B1.

(2-3) Auxiliary blades 130
In FIG. 1, two auxiliary blades 130 having a rotation axis parallel to the long side are provided at the rear portion of the air outlet 15. The two auxiliary blades 130 are adjacent to each other along the longitudinal direction of the air outlet 15.

  Two central support portions 131 that support one end of the rotating shaft of the auxiliary blade 130 are provided at a position facing the central portion of the air outlet 15 in the main body casing 13. Further, a side support portion 132 that supports the other end of the rotation shaft of the auxiliary blade 130 is provided at the rear corner of the air outlet 15 in the main body casing 13.

  As shown in FIG. 2, when the up / down airflow direction adjustment blade 30 is in the closed position, the auxiliary blade 130 is stored above the up / down airflow direction adjustment blade 30 in a posture substantially parallel to the up / down airflow direction adjustment blade 30, It is not visible from the outside. At this time, since the auxiliary blades 130 are close to each other so as to overlap the second surface 30b of the vertical airflow direction adjusting blades 30, the space in which the auxiliary blades 130 occupy the outlet flow path 18 is small, and the vicinity of the outlet 15 and the outlet flow Interference with other members (for example, vertical blades 20) arranged in the path 18 is minimized.

  In addition, when the up / down air direction adjusting blade 30 adopts the up / down blowing posture during the dehumidifying operation as shown in FIG. 3, the tip of the auxiliary blade 130 rotates so as to face the rear end of the up / down air direction adjusting blade 30. According to the applicant's research, when the up / down airflow direction adjusting blade 30 takes the up / down blowing posture, the air blown out from the air outlet 15 hits the second surface 30b of the up / down airflow direction adjusting blade 30 and is inclined obliquely upward. Divided into downward air. However, since the gap between the rear end of the up-and-down airflow direction adjusting blade 30 and the outlet 15 is large, a part of the air directed obliquely downward flows toward the wall behind the outlet 15 (wall to which the air conditioning indoor unit 10 is attached). Causes the walls to become dirty.

  In the case of this embodiment, since the auxiliary blades 130 are interposed in the gap between the rear end of the up / down airflow direction adjusting blade 30 and the outlet 15, the blowout air that tries to leak backward through the gap is assisted. The blades 130 block. As a result, the wall surface is prevented from being contaminated by the blown air.

  Further, when the up / down airflow direction adjusting blade 30 adopts the bottom blowing posture in the heating operation as shown in FIG. 4 or when taking the upwinding posture in the heating operation as shown in FIG. 5, the auxiliary blade 130 adjusts the up / down airflow direction. It rotates so as to be substantially parallel to the blade 30. In this case, the auxiliary blade 130 not only blocks the blown air that leaks backward, but also guides the blown air in a direction parallel to the vertical airflow direction adjusting blade 30.

(3) Features (3-1)
In the air conditioning indoor unit 10, the auxiliary blade 130 is located between the rear end of the vertical airflow direction adjusting blade 30 and the air outlet 15 when the vertical airflow direction adjusting blade 30 protrudes forward of the air outlet 15 and takes a posture close to a horizontal state. Therefore, air leaking from the gap between the rear end of the vertical airflow direction adjusting blade 30 and the outlet 15 to the rear of the outlet 15 is blocked by the auxiliary blade 130 and flows along the inclination of the auxiliary blade 130. Become. As a result, the phenomenon that the wall is soiled by the blown air is suppressed.

(3-2)
Further, since the auxiliary blade 130 is housed above the vertical airflow direction adjusting blade 30 when the operation is stopped, the auxiliary blade 130 is covered with the vertical airflow direction adjusting blade 30 and cannot be seen from the outside. Therefore, a situation in which the appearance of the air conditioning indoor unit is impaired by the auxiliary blade 130 is avoided.

(3-3)
Further, since the auxiliary blade 130 moves upward from the closed position of the vertical wind direction adjusting blade 30 before the vertical wind direction adjusting blade 30 reaches the closed position, the vertical direction adjusting blade 30 and the auxiliary blade 130 are stored in the same space. It is possible to save space.

(3-4)
In addition, the auxiliary blade 130 is rotatably supported in the vicinity of the air outlet 15, and when the operation is stopped, the auxiliary blade 130 is rotated to a position that is substantially parallel to the posture in the closed position of the vertical airflow direction adjusting blade 30. Interference with other members (for example, the vertical blades 20) disposed in the space is minimized.

  As described above, according to the present invention, the auxiliary vane 130 suppresses the flow of blown air from the blowout port 15 toward the rear thereof, so that the air conditioning that requires a mode in which the blown air does not flow in a predetermined direction. Useful for equipment.

10 Air-conditioning indoor unit 15 Air outlet 30 Vertical wind direction adjusting blade 130 Auxiliary blade

JP 2011-33299 A

Claims (5)

An up-and-down wind direction adjusting blade (30) capable of changing the direction of the air blown out from the air outlet (15);
An auxiliary blade (130) for reducing a gap between the rear end of the vertical airflow direction adjusting blade (30) and the outlet (15) when taking a posture close to a horizontal state;
With
The auxiliary blade (130) is stored in a predetermined position when the operation is stopped.
Air conditioning indoor unit (10). The up-and-down wind direction adjusting blade (30) is pushed forward in front of the outlet (15) during operation.
The air conditioning indoor unit (10) according to claim 1. The auxiliary blade (130) is housed on the upper side of the vertical airflow direction adjusting blade (30) when operation is stopped.
The air conditioning indoor unit (10) according to claim 2. The vertical airflow direction adjusting blade (30) moves to a closed position for closing the air outlet (15) when operation is stopped,
The auxiliary blade (130) moves above the closed position before the vertical wind direction adjusting blade (30) reaches the closed position.
The air conditioning indoor unit (10) according to claim 3. The auxiliary blade (130) is rotatably supported in the vicinity of the air outlet (15). When the operation is stopped, the auxiliary blade (130) is rotated to a position that is substantially parallel to the posture of the vertical airflow direction adjusting blade (30) in the closed position. Move,
The air conditioning indoor unit (10) according to claim 4.

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