JP4358179B2 - Air conditioner indoor unit - Google Patents

Description

  The present invention relates to an indoor unit of an air conditioner that is used by being attached to a wall surface in a conditioned room, and particularly relates to an improvement in a wind direction control device.

  As a horizontal air direction control device in a conventional indoor unit of an air conditioner, for example, an uneven portion is provided on the upper surface of a movable portion that changes the direction of a blade, and the upper surface of the uneven portion protrudes from an inner surface of a blowout port that is a fixed portion. The protruding part provided on the bottom of the bar-shaped pressing part provided is arranged so that it engages in the pressed state, and the movable part slides in the left-right direction and stops at any position to control the left-right direction of the blown air (For example, refer to Patent Document 1).

JP 2004-239396 A (paragraph 0017, FIG. 2, FIG. 3)

  In the indoor unit of the conventional air conditioner configured as described above, the movable portion can be slid in the left-right direction and stopped at an arbitrary position, but the bar-shaped pressing portion is a plane that is a fixed portion. The distance from the fixing part of the pressing part to the convex part provided on the bottom of the pressing part is shortened, and stress concentrates on the fixing part. There was a problem that it was easy to break. In addition, the operating force is large and it is difficult to change the direction of the blades, and in order to reduce the operating force, lubricant is applied to the engaging portions of the concave and convex portions provided on the upper surface of the movable portion and the convex portions provided on the bottom surface of the pressing portion. There was a problem that it might be necessary.

  The present invention has been made to solve the above-described problems of the prior art, and the operation force when changing the angle of the horizontal wind direction control member is small, the operability is improved, and the application of the lubricating oil is performed. It is an object of the present invention to provide an indoor unit for an air conditioner that can reduce costs without the need for such a process.

  An indoor unit of an air conditioner according to the present invention is an indoor unit of an air conditioner provided with a heat exchanger and a blower in a ventilation path connecting a suction port and a blowout port provided in a housing, and is provided at the blowout port. A base member, a plurality of blades that are rotatably provided on one side with respect to the base member, and that are slidable in opposition to the base member. And a horizontal wind direction control member, wherein the other sides of the plurality of blades are rotatably locked, and the angle of the plurality of blades is changed in conjunction with the horizontal wind direction control member by sliding with respect to the base member. An operation knob provided in the downstream direction of the air outlet of the airflow direction control member, a back surface portion of the operation knob in the base member and the horizontal airflow direction control member, and two opposing surfaces on the upstream side of the operation knob. Each is provided, the convex portion is any one, but the other is equipped with two sets of locking means engaged with the convex portions composed of uneven strings for locking the horizontal wind direction control member.

  In the present invention, two sets of combinations of concave portions and concave and convex rows are formed on the opposing surfaces including the back portion of the operation knob between the base member and the horizontal wind direction control member slidably provided facing the base member. By providing the locking means, the operating knob can be lifted simultaneously with the operation of the horizontal air direction control member, thereby reducing the operating force and improving the operability. As a result, it is not necessary to apply lubricating oil, and the cost can be reduced.

Embodiment 1 FIG.
1 to 8 illustrate an indoor unit of an air conditioner according to Embodiment 1 of the present invention. FIG. 1 is a perspective view showing the overall configuration, FIG. 2 is a schematic sectional view of FIG. 1, and FIG. 4 is a perspective view showing a wind direction control device shown in FIG. 2, FIG. 4A is a perspective view showing a main part of the vertical wind direction control member shown in FIG. 3, and FIG. 4B is a concavo-convex row of FIG. FIG. 5A is a perspective view showing a configuration when the horizontal wind direction control device of FIG. 3 is viewed from the top side, and FIG. 5B is a configuration when viewed from the back side. FIG. 5C is an enlarged cross-sectional view showing the concavo-convex row of FIG. 5B, FIGS. 6A to 6C are operation explanatory views when operating the horizontal wind direction control member, FIG. FIG. 8 is a cross-sectional view schematically explaining the arrangement relationship between the two sets of locking means and the height of the convex portion, and FIG. 8 is a characteristic diagram measured for the relationship between the height of the convex portion and the operating force. In the drawings, the same reference numerals denote the same or corresponding parts.

  In the figure, a casing 1 of an indoor unit of an air conditioner includes a suction port 11 that sucks air in the conditioned room into the top surface portion, and a blowout port that blows air sucked from the suction port 11 in front of the lower surface portion into the conditioned chamber. 16 is provided, and a heat exchanger 12 for adjusting the temperature and humidity of the air, a suction airflow A and a blowout airflow B are generated in the ventilation path 10 formed so as to connect the suction port 11 and the blowout port 16. A blower 13 composed of a cross flow fan is provided. Further, the air outlet 16 is provided with a wind direction control device 2 for changing the direction of the air flow B in the vertical and horizontal directions. The wind direction control device 2 has the appearance shown in FIG. 3, and in the first embodiment, the vertical wind direction control member 30 also serving as the base member shown in FIG. The horizontal wind direction control device 4 shown in FIG. 5 is an assembly that is assembled integrally.

  The vertical wind direction control member 30 as a base member is formed of a resin molded body formed in an elongated plate shape as shown in FIGS. 3 and 4, and is used to fix the horizontal wind direction control device 4 shown in FIG. The fixed portions 30a and 30b are integrally formed by injection molding. And the 1st latching means 61 for hold | maintaining the setting angle of the horizontal direction of the horizontal wind direction control apparatus 4 is comprised in the blower outlet back | inner side (upward direction of Fig.4 (a)) of the vertical wind direction control member 30. The convex portion 61a is integrally protruded, and a plurality of concave portions are continuously formed in a fan shape in the vicinity of the end portion on the opposite side (outlet outlet side) of the convex portion 61a. The uneven | corrugated row | line | column 62b which comprises the 2nd latching means 62 which becomes is formed. Note that support shafts 31 are provided at both left and right ends of the vertical wind direction control member 30, and are held rotatably with respect to the housing 1. The vertical wind direction control device 3 is configured together with a drive device (not shown). Yes. Further, the convex portion 61 a and the concave / convex row 62 b are provided in two places, one on each of the left and right predetermined portions of the vertical air direction control member 30.

  The horizontal wind direction control device 4 connects a plurality of blades 41 for deflecting the direction of air blown from the blowout port 16 in the horizontal direction and the respective leading ends of the blowing direction on one side of the lower end portions of the blades 41. The substrate 42 that is pivotably held, and the blower direction rear end on the other side of the lower end of each blade 41 are connected to be pivotably held and to the vertical air direction control member 30 that is a base member in the left-right direction And a horizontal wind direction control member 43 that changes the angle of the plurality of blades 41 in conjunction with each other. And the operation knob 43a which protrudes in the blowing direction front-end | tip side shown by the arrow B in the horizontal direction center part of the horizontal wind direction control member 43 and an upward direction is provided integrally, and the back part side is shown in FIG.5 (b). As shown, the projections 62a constituting the second locking means 62 and the concavo-convex rows 61b constituting the first locking means 61 composed of comb-like depressions in which a plurality of recesses are continuously formed in a fan shape are respectively shown. Is formed.

  The substrate 42 of the horizontal wind direction control device 4 is fitted and fixed to the fixing portion 30 b of the vertical wind direction control member 30, and the horizontal wind direction control member 43 is arcuate locking holes 43 b with respect to the vertical wind direction control member 30. Is slidably engaged with the fixing portion 30a. At that time, the convex portion 61a on the vertical wind direction control member 30 side is engaged with the concave / convex row 61b on the horizontal wind direction control member 43 side to form the first locking means 61, and the concave / convex row 62b on the vertical wind direction control member 30 side. Is engaged with the convex portion 62 a on the horizontal air direction control member 43 side to constitute the second locking means 62. In the present invention, as means for fixing the direction of the blade 41 between the opposing surfaces of the vertical wind direction control member 30 and the horizontal wind direction control member 43 as the base members, the first locking means 61 and the second locking means 61 One of the features is that two sets of locking means 62 are provided. It should be noted that the second locking means 62 is disposed in the downstream direction of the blown air flow B indicated by an arrow with respect to the first locking means 61. In addition, 14 is an upper wind path wall and 15 is a lower wind path wall. Since other configurations are the same as those of the conventional apparatus, description thereof is omitted.

  Next, the operation of the first embodiment configured as described above will be described. FIG. 6 shows the first locking means 61 side, and in the initial state shown in FIG. 6A, the convex portion 61a on the vertical wind direction control member 30 side corresponds to the concave / convex row 61b on the horizontal wind direction control member 43 side. The movement of the horizontal air direction control member 43 in the horizontal direction is constrained so as to enter the recess. From the initial state, when the operation knob 43a of the horizontal air direction control member 43 is held and the operation knob 43a is moved to the right in the horizontal direction indicated by the arrow C in FIG. 6 (a), as shown in FIG. 6 (b), the horizontal The vicinity of the concavo-convex row 61b of the wind direction control member 43 bends upward in the drawing and rides on the convex portion 61a of the vertical wind direction control member 30. When the operation knob 43a is further moved in the right direction, as shown in FIG. 6C, the operation knob 43a is fitted into the adjacent concave portion of the concave-convex row 61b or an arbitrary concave portion corresponding to a desired angle, and the position of the horizontal air direction control member 43 is changed. It is decided.

  The entire deformation when the bending of the horizontal air direction control member 43 in the vicinity of the concavo-convex row 61b in the first locking means 61 is maximized by the operation of holding the operation knob 43a with the finger 5 and moving left and right in the horizontal direction. As schematically shown in FIG. 7, the convex portion 62 a of the horizontal wind direction control member 43 that constitutes the second locking means 62 installed immediately below the operation knob 43 a is also formed in the uneven row of the vertical wind direction control member 30. The entire horizontal direction of FIG. 7 of the horizontal air direction control member 43 is bent and lifted in synchronization with the first locking means 61 side.

The wind direction control device 2 used for an indoor unit of a standard household size (width of about 80 to 85 cm) molded by using a general resin casting material was experimentally studied, and the height h of the convex portion 61a. _The results measured for the relationship between ₁ and the operating force f are illustrated in FIG.
5 (N) ≦ f ≦ 20 (N) (1)
I found out that That height appropriate range of _{h 1} of the protrusions 61a is
0.35 (mm) ≦ h ₁ ≦ 1.4 (mm) (2)
It is. The height _{h 2} of the case protrusion 62a is preferably a convex portion 61a is a height _h less than _1.

  As described above, according to the first embodiment, the first and second engagements provided on the back side of the operation knob 43a in accordance with the operation of changing the wind direction in the horizontal direction by the operation of the operation knob 43a. Since the horizontal air direction control member 43 corresponding to the means 61 and 62 is also lifted at the same time, the operation force can be reduced and the operability is improved. As a result, it is not necessary to apply lubricating oil to the locking means 61 and 62, and the cost can be reduced.

Embodiment 2. FIG.
FIGS. 9 to 10 explain the main part of the indoor unit of the air conditioner according to Embodiment 2 of the present invention. FIG. 9 is a perspective view showing the main part of the upper surface of the vertical air direction control member, and FIG. ) Is a perspective view showing a schematic configuration when the horizontal wind direction control member is viewed from the top surface side, and FIG. 10B is a perspective view of a main part showing the configuration when viewed from the back surface side. In the first embodiment, each of the vertical wind direction control member 30 and the horizontal wind direction control member 43 as the base member is provided with one convex portion and one fan-shaped uneven row, but in this second embodiment, As shown in FIGS. 9 and 10, the convex portions 61a and 62a are gathered on the vertical wind direction control member 30, and the concave and convex rows 61b and 62b are gathered on the horizontal wind direction control member 43, and the convex and concave rows are provided on the convex portion 61a. 61b is provided so as to engage with each other with the concave and convex rows 62b facing each other with respect to the convex portion 62a, and the first and second locking means 61 and 62 are formed. Other configurations are the same as those in the first embodiment.

  According to the configuration of the second embodiment, the operation knob 43a is also lifted at the same time as the operation of changing the horizontal wind direction in the same manner as in the first embodiment, so that the operation force can be reduced. Improved operability. As a result, it is not necessary to apply lubricating oil and the cost can be reduced. It goes without saying that the concavity and convexity rows 61 b and 62 b may be gathered on the vertical wind direction control member 30 and the convex portions 61 a and 62 a may be gathered on the horizontal wind direction control member 43. In short, the first set consisting of the back surface of the operation knob 43a and the surface of the base member (here, the vertical air direction control member 30) facing the back surface, and the housing inner direction of the operation knob 43a (in FIG. 10). Any one of the back surface portion and the surface portion of the second set consisting of the back surface portion of the horizontal air direction control member 43 located in the upper right direction and the surface portion of the base member facing the back surface portion is a convex portion. And two sets of locking means formed in a concavo-convex row for positioning the horizontal wind direction control member 43 by engaging the other convex portion arranged in a horizontal direction with the other. A similar effect can be obtained.

Embodiment 3 FIG.
FIG. 11 is a sectional view conceptually showing a main part of an indoor unit of an air-conditioning apparatus according to Embodiment 3 of the present invention. In the first embodiment, the vertical wind direction control member 30 is used as the base member constituting the wind direction control device 2, and the horizontal wind direction control device 4 is integrally combined with the vertical wind direction control member 30. The vertical wind direction control member 30 is not necessarily required. In the third embodiment, as shown in FIG. 11, the upper air channel wall 14 of the indoor unit body is used as a base member, and the horizontal air direction control device 4 is connected to the upper air channel. It is attached to the lower surface of the wall 14. In the case of this example, the engagement means corresponding to the fixing portions 30a and 30b in FIG. 4 for fixing the horizontal wind direction control device 4 and the first and second for positioning the horizontal wind direction control member 43. It goes without saying that the concave and convex rows or the convex portions constituting the locking means 61 and 62 are similarly installed on the upper air passage wall 14 side (not shown).

  According to the configuration of the third embodiment as described above, in addition to the same effects as those of the first embodiment, the horizontal wind direction control device 4 can be brought closer to the blower 13 including a cross flow fan that sends out the wind. The effect that the wind direction control performance in the horizontal direction is improved is obtained. Further, since the vertical wind direction control member 30 can be simplified to a simple plate shape, the effect that the vertical wind direction control device 3 can be used together as an opening / closing flap of the outlet 16 can be expected.

Embodiment 4 FIG.
FIG. 12 is a sectional view conceptually showing a main part of an indoor unit of an air-conditioning apparatus according to Embodiment 4 of the present invention. In Embodiment 4, as shown in FIG. 12, the lower air passage wall 15 of the indoor unit body is used as a base member, and the horizontal air direction control device 4 is attached to the lower air passage wall 15. In the case of this example, the engagement means corresponding to the fixing portions 30a and 30b in FIG. 4 for fixing the horizontal wind direction control device 4 and the first and second for positioning the horizontal wind direction control member 43. Needless to say, the concave and convex rows or convex portions constituting the locking means 61 and 62 are similarly installed on the lower air passage wall 15 side (not shown).

  According to the fourth embodiment configured as described above, since the horizontal wind direction control device 4 can be brought closer to the blower 13 that sends out the wind, the horizontal wind direction control performance is the same as in the third embodiment. Effects such as improvement can be obtained.

  In the description of each of the above embodiments, the concave and convex rows 61b and 62b are formed by the comb-shaped concave portions formed in a fan shape, but the shapes of the concave and convex rows 61b and 62b, the shapes of the convex portions 61a and 62a, and the like are of course exemplified. It is not limited to things. For example, as for the uneven | corrugated row | line | column 62b shown in FIG.4 (b), the recessed part may be penetrated in the plate | board thickness direction. Further, the concave / convex rows are not particularly limited as long as the horizontal wind direction control member 43 can be locked, such as a mountain shape having a triangular cross section or a concave portion having a semicircular cross section, and the same effect is expected. it can. In addition, it goes without saying that various modifications and changes can be made within the spirit of the present invention.

The perspective view which shows the whole structure of the indoor unit of the air conditioner by Embodiment 1 of this invention. The schematic sectional drawing of FIG. The perspective view which shows the wind direction control apparatus shown in FIG. 4A is a perspective view showing a main part of the vertical air direction control member shown in FIG. 3, and FIG. 4B is an enlarged cross-sectional view showing the concavo-convex row of FIG. 4A. FIG. 5A is a perspective view showing a configuration when the horizontal wind direction control device of FIG. 3 is viewed from the top surface side, and FIG. 5B is a perspective view of a main part showing the configuration when viewed from the back surface side. FIG.5 (c) is an expanded sectional view which shows the uneven | corrugated row | line | column of FIG.5 (b). FIG. 6A to FIG. 6C are operation explanatory views when operating the horizontal wind direction control member. Sectional drawing which illustrates typically the arrangement | positioning relationship and the height of a convex part of two sets of latching means in the indoor unit of FIG. The characteristic view measured about the relationship between the height of the convex part shown in FIG. 7, and operating force. The perspective view which shows the upper surface principal part of the vertical wind direction control member of the indoor unit of the air conditioning apparatus by Embodiment 2 of this invention. FIG. 10A is a perspective view showing a schematic configuration when the horizontal wind direction control member shown in FIG. 9 is viewed from the top surface side, and FIG. 10B is a perspective view of the main part showing the configuration when viewed from the back surface side. . Sectional drawing which shows notionally the principal part of the indoor unit of the air conditioning apparatus by Embodiment 3 of this invention. Sectional drawing which shows notionally the principal part of the indoor unit of the air conditioning apparatus by Embodiment 4 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Housing | casing, 10 ventilation path, 11 Air inlet, 12 Heat exchanger, 13 Blower, 14 Upper wind path wall, 15 Lower wind path wall, 16 Air outlet, 2 Wind direction control apparatus, 3 Vertical wind direction control apparatus, 30 Vertical wind direction Control member (base member), 30a, 30b fixing part, 4 horizontal wind direction control member, 41 blade, 42 substrate, 43 horizontal wind direction control member, 43a operation knob, 43b locking hole, 5 fingers, 61 first locking means 61a convex part, 61b uneven | corrugated row | line | column, 62 2nd latching means, 62a convex part, 62b uneven | corrugated row | line | column, A suction airflow, B blowing airflow.

Claims (5)

  In an indoor unit of an air conditioner provided with a heat exchanger and a blower in a ventilation path connecting a suction port and a blowout port provided in a housing, a base member provided in the blowout port and a base member provided A plurality of blades whose sides are pivotably provided to deflect the direction of the air blown from the blowout port in a horizontal direction, and slidably provided so as to face the base member, and the other sides of the plurality of blades are respectively rotated. A horizontal wind direction control member that is movably locked and that slides with respect to the base member to change the angle of the plurality of blades in conjunction with each other, and is provided in the downstream direction of the outlet of the horizontal wind direction control member. The operation knob is provided on the back surface of the operation knob on the base member and the horizontal wind direction control member and on the two opposing surfaces on the upstream side thereof, and any one is a convex portion, the other There indoor unit of an air conditioner which is characterized by comprising a two sets of locking means engaged with the convex portions composed of uneven strings for locking the horizontal wind direction control member.   The indoor unit of an air conditioner according to claim 1, wherein the base member includes a vertical air direction control member that extends in the horizontal direction at the outlet and is provided to change an angle in the vertical direction. .   The indoor unit of an air conditioner according to claim 1, wherein the base member is composed of an upper air passage wall that forms an outlet of the housing.   The indoor unit of an air conditioner according to claim 1, wherein the base member is composed of a lower air passage wall that forms an outlet of the housing. The indoor unit of an air conditioner according to any one of claims 1 to 4, wherein the concavo-convex row is composed of a comb-like concave portion formed in a fan shape.

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