JP4098704B2 - Wind direction changing device and air conditioner equipped with the same - Google Patents

Description

    The present invention relates to a wind direction changing device in which a louver unit including a plurality of vertical louvers is provided detachably with respect to a blowout port, and an air conditioner including the same.

    Conventionally, in an indoor unit of an air conditioner, there has been a demand for detachably forming a louver unit having a plurality of vertical louvers at an outlet to facilitate cleaning of the louver unit and an indoor fan built in the indoor unit. is there.

  Patent Document 1 discloses a technique that allows a blowout port provided with a vertical louver to be detachable from an indoor unit.

  Patent Document 2 discloses a technique for making a louver unit including a vertical louver detachable from an outlet.

Patent Document 3 discloses a technique in which a blade and a louver are integrally held by a holder that is detachable from an indoor unit, and can be separated from a drive source disposed on the indoor unit side via a magnetic coupling or a magnetic reduction gear. It is disclosed.
JP 2001-201090 A (see paragraphs 0015 and 0033 to 0037 of the specification) Japanese Patent No. 3306250 (see paragraphs 0033 to 0037 and 0045 to 0046 of the specification) JP 2001-147024 A (see paragraphs 0007 to 0011 of the specification)

  By the way, the vertical louver of the louver unit can change the wind direction in the left-right direction in conjunction with a connecting rod or the like, but in recent years, a mechanism for rotating the vertical louver with a drive motor is provided. Therefore, when the louver unit is configured to be detachable from the outlet, how to smoothly communicate between the louver unit and the drive motor becomes a problem.

  However, Patent Documents 1 and 2 do not disclose any connection to the drive source of the vertical louver when the louver unit is attached or detached. Patent Document 3 discloses an example in which a magnetic coupling or a magnetic reduction gear is used. However, since the holder for holding the blades, the louvers, and the indoor fan is removed from the indoor unit, large-scale attachment / detachment is performed. It becomes work, and it is not possible to easily remove only the louver unit.

  In addition, although it is conceivable to connect the drive motor and the louver power transmission part of the louver unit using a power transmission gear, in this case, the louver unit that is a large part is connected to the gear that is a small part, The fitting / assembling accuracy is required, and there is a possibility that gear noise may be generated due to poor meshing in the louver operation.

  In view of the above problems, an object of the present invention is to provide a wind direction changing device that can smoothly communicate between a drive motor and a louver unit and that can reduce noise, and an air conditioner including the same.

    In order to achieve the above object, the present invention includes a louver unit in which a plurality of vertical louvers are arranged on a louver base at intervals in the horizontal direction and are pivotally supported. The louver base is detachably provided with a wind direction changing device, and a rotary shaft communicating with the vertical louver is rotatably provided on the louver base, and the rotary shaft is connected to a motor shaft of a wind direction changing drive motor of the outlet. A fitting portion is provided, and the fitting portion is detachably connected to the motor shaft through an opening formed in the louver base.

  According to the above configuration, since the fitting portion for detachably connecting the motor shaft of the drive motor to the rotation shaft of the louver unit is provided through the opening, the connection between the louver unit and the motor shaft should be connected without using a gear. Therefore, it is possible to prevent the generation of abnormal noise due to the biting of the gear.

  Here, in addition to the direct connection, the motor shaft and the rotation shaft are directly connected, and a joint shaft is fitted to the tip of the motor shaft, and the joint shaft is detachably connected to the fitting portion of the rotation shaft. Includes configuration. The reason for using such a joint shaft is to match a general-purpose drive motor with the specifications of the louver unit. Also, the impact generated when the motor shaft of the drive motor and the rotary shaft of the louver unit are fitted together is used for the joint shaft. This is to prevent damage to the drive motor.

  In this case, the material of the joint shaft and the louver unit is not limited, but if they are made of synthetic resin, it is suitable for absorbing the impact generated when the two are fitted.

  In addition, a rotation preventing means for rotating the rotating shaft integrally with the motor shaft or the joint shaft can be provided in the fitting portion of the rotating shaft, so that the motor shaft can be prevented from idling. As the rotation preventing means, the simplest configuration is to form the cross-sectional shape of the fitting portion of the rotating shaft and the motor shaft or joint shaft fitted thereto in a non-circular shape with respect to the shaft center.

  Further, the motor shaft or the joint shaft and the rotating shaft are connected to the rotating shaft fitting portion from the lateral direction (direction orthogonal to the motor shaft) with respect to the motor shaft, and the upper side with respect to the motor shaft. Any of the configurations that are fitted from (the axial direction of the motor shaft) can be employed. In the case of a configuration in which the motor shaft is fitted from the axial direction, the louver unit can be attached and detached by moving the motor shaft or the joint shaft up and down freely with respect to the outlet.

  Moreover, when fitting to the fitting part of a rotating shaft from the horizontal direction, the following structure can be illustrated. That is, the opening of the louver base is continuously formed from the side surface to the bottom surface of one end portion of the louver base, and the insertion port for fitting the motor shaft or the joint shaft from the lateral direction is formed in the fitting portion of the rotating shaft. Thus, a mode in which the louver unit enters the motor shaft or the joint shaft from the lateral direction through the opening can be exemplified.

  Such a configuration is simpler than the type in which the motor shaft is fitted from the axial direction because no special device is applied to the motor shaft side.

  Here, since the louver unit is a removal member, it is desirable that the louver unit has a certain degree of rigidity. Therefore, if the louver base is formed in a horizontally long rectangular frame shape, and the vertical axis of each vertical louver is rotatably supported on the top and bottom of the louver base, the frame-shaped louver base and the vertical axis However, the rigidity of the louver unit can be increased by the louver base and the vertical louvers pivotally supported on the top and bottom. Furthermore, in order to increase the rigidity of the louver unit, it is possible to employ a configuration in which partition walls that connect the top and bottom of the louver base are arranged at intervals in the lateral direction. Note that the vertical louver is pivotally supported by the louver base at its upper and lower ends, so that it is possible to prevent the shaft from collapsing.

  In addition, the louver base is formed in a horizontally long rectangular frame shape, the upper end of the rotation shaft is rotatably supported on the top of the louver base, the fitting portion is formed at the lower portion, and the fitting portion is formed on the louver base. It is possible to adopt a configuration that supports the bottom portion in a freely rotatable manner. As a result, the rotating shaft is also supported by the louver base at the upper and lower ends thereof, so that the shaft does not collapse and a stable power transmission function can be achieved.

  Furthermore, since the motor shaft or the joint shaft is arranged coaxially in the fitting portion below the rotation shaft, the fitting portion is arranged so as to surround the motor shaft or the joint shaft. In order to securely support the rotating shaft at the upper and lower ends of the louver base, an arcuate guide is provided in the fitting portion in order to rotatably support the fitting portion, and the louver base facing the guide is provided. A configuration in which a guide groove for movably engaging the guide is formed in a receiving seat on the bottom side can be suitably employed. As a result, the fitting portion rotates while being guided by the guide groove on the bottom side of the louver base, so that a more stable power transmission function can be achieved.

  Furthermore, if a retaining rib that protrudes upward from the receiving seat of the louver base is formed on the groove wall of the guide groove, the impact when the fitting portion of the rotating shaft and the motor shaft or joint shaft of the driving motor are fitted together. For example, the fitting portion of the rotating shaft can be prevented from coming out of the louver base.

  Moreover, a guide means for guiding the fitting portion of the louver unit to the motor shaft or the joint shaft can be provided. The guide means can be configured such that a cylindrical portion on the outlet side through which the motor shaft or the joint shaft passes projects from the wall surface of the outlet, and the cylindrical portion is guided from the opening of the louver base to the fitting portion. . Thereby, it is possible to prevent the motor shaft or the joint shaft from being damaged by the attaching / detaching operation of the louver unit.

  In addition, a guide flange is formed at the upper end of the cylindrical portion, and a guide groove is formed from the opening edge to the fitting portion so as to guide the guide flange from the opening to the fitting portion while sandwiching the guide flange in the vertical direction. May be. Thus, the guide groove of the louver unit is attached and detached so as to sandwich the guide flange from above and below, so that the louver unit can be securely fitted to the motor shaft or the joint shaft.

  Furthermore, an angle restricting means for restricting the rotation angle of the vertical louver can be provided. This angle restricting means is constituted by a protrusion formed on one of the rotating portion and its receiving portion and a recess formed on the other side with a predetermined circumferential length in the power transmission path from the drive motor to the vertical louver. be able to. As the arrangement position, for example, a mode provided in the fitting portion of the rotating shaft, a mode provided between the joint shaft and the cylindrical portion, a mode provided in the connecting portion with the vertical louver of the rotating shaft can be exemplified, and these can be used alone or A plurality of aspects can be combined.

  The wind direction changing device as described above can be installed in various devices having an outlet. In particular, when the air outlet is provided at the outlet of the indoor unit of the air conditioner, not only the louver unit itself is cleaned, but also the indoor fan and other built-in components built in the indoor unit can be cleaned.

  In addition, if a horizontal louver is rotatably supported at the air outlet of the indoor unit and used in combination with the louver unit of the wind direction changing device, not only the horizontal direction but also the vertical direction can be changed. It is possible to form a comfortable indoor space.

  As described above, according to the present invention, since the rotation portion of the louver unit is provided with the fitting portion that is detachably connected to the motor shaft of the wind direction changing drive motor through the opening formed in the louver base, The fitting part of the rotating shaft and the motor shaft are connected directly or via a joint shaft, and the occurrence of abnormal noise can be reduced without the engagement of gears.

  Moreover, if this wind direction changing device is installed at the outlet of the indoor unit of the air conditioner, it is possible not only to clean the louver unit itself, but also to clean the indoor fan and other built-in parts built into the indoor unit. Become.

  Hereinafter, an embodiment in which a wind direction changing device according to the present invention is incorporated in an indoor unit of an air conditioner will be described with reference to the drawings. FIG. 1 is a side sectional view of an indoor unit of an air conditioner showing an embodiment of the present invention.

  The air conditioner in this embodiment exemplifies a separate type separated into an indoor unit 1 and an outdoor unit (not shown). As shown in FIG. 1, the indoor unit 1 has a suction port 3 formed in the front and upper surfaces of the casing 2, and a blowout port 4 formed in the lower front surface. Further, in the internal air flow passage of the casing 2 from the suction port 3 to the blowout port 4, auxiliary heat is further added to the back surface of the main heat exchangers 5, 6, 7 divided into three and the back side heat exchanger 7. An exchanger 8 is arranged, surrounded by main heat exchangers 5 to 7, and an indoor fan 9 made of a crossflow fan is built in the outlet 4 side.

  The blowout port 4 is supported at its front by two upper and lower horizontal louvers 10 and 11 so as to be rotatable about a horizontal axis 12 so that the vertical air blowing direction can be changed. Moreover, the horizontal louvers 10 and 11 can be closed so that the air outlet 4 can be freely opened and closed, and can close the air outlet 4 when the operation is stopped. Further, the horizontal louvers 10 and 11 can be configured so that the horizontal shaft 12 can be attached to and detached from the side wall of the outlet 4 so that the internal indoor fan 9 can be cleaned.

  A wind direction changing device 13 is provided on the air guide wall on the back side of the casing 2 on the indoor fan 8 side of the lateral louvers 10 and 11.

  2 is a front view of the louver unit of the wind direction changing device, FIG. 3 is a plan sectional view of the louver unit, FIG. 4 is a perspective view showing a process of attaching the louver unit to the drive unit, and FIG. FIG. 6 is an exploded perspective view of the drive unit, FIG. 7 is an exploded perspective view of the configuration of the power transmission unit of the louver unit, FIG. 8 is a front view of the power transmission unit of the louver unit, and FIG. 8 is a cross-sectional view taken along the line AA in FIG. 8, FIG. 10 is a cross-sectional view taken along the line BB in FIG. 9, FIG. 11 is a cross-sectional view of the rotating shaft for power transmission of the louver unit, and FIG. It is a bottom view which shows a rotation prevention means.

  As shown in FIG. 5, the wind direction changing device 13 includes a louver unit 14 and a drive motor 15 that detachably connects the louver unit 14.

  The drive motor 15 is composed of a stepping motor or the like. As shown in FIGS. 1, 5 and 6, a screw 18 is provided on the back surface of the motor base 17 engaged with the guide wall 16 on the back surface side of the outlet 4. It is fixed by. The motor shaft 15a of the drive motor 15 protrudes from the motor base 17 to the outlet 4 side, and a joint shaft 19 is fitted to the tip thereof. The motor shaft 15a is partly cut away so that it can rotate integrally with the joint shaft 19, is formed into a non-circular shape such as a D-shaped cross section, and is engaged with a joint shaft hole of the same shape.

  The joint shaft 19 is formed in a cylindrical shape at least on the lower surface side in order to engage and connect the motor shaft 15a, and the shaft hole is formed in a non-circular shape corresponding to the cross-sectional shape of the motor shaft 15a. The material of the joint shaft 19 is made of a synthetic resin material having excellent sliding resistance such as POM (polyacetal).

  In addition, the joint shaft 19 has a shaft portion 19a in which a part of the peripheral wall is cut at a symmetric position with respect to the shaft center and formed in a non-circular cross section so that the joint shaft 19 can rotate integrally with the rotation shaft 20 of the louver unit 14. . The non-circular cross-section shaft portion 19a constitutes a part of the rotation preventing means for the rotating shaft 20.

  Further, on the peripheral wall of the joint shaft 19, an angle restricting projection 19 b that restricts the rotation angle of the motor shaft 18 is formed to protrude in an axially symmetric position, and the cylindrical portion 21 of the motor base 17 serving as a rotation receiving portion of the joint shaft 19. A recess 23 having a predetermined circumferential length for engaging the protrusion 21 is formed, and the recess 23 and the protrusion 19b constitute an angle restricting means for restricting the rotation angle of the joint shaft 19.

  The motor base 17 is made of synthetic resin, and has a cylindrical portion 21 that penetrates the joint shaft 19 at the center thereof, and a ring-shaped guide flange 22 that expands outward on the front surface of the cylindrical portion 21. It protrudes from the mouth 4 side. The cylindrical portion 21 is for fitting and fitting in the fitting hole 31 formed in the bottom portion of the louver base 25 of the louver unit 14 to reliably guide and position the louver unit 14. Thus, it is possible to prevent the motor shaft or the joint shaft from being damaged.

  The guide flange 22 enters from the side opening of the louver base 25 and guides the cylindrical portion 21 to the fitting hole 31 of the louver unit 14 while being sandwiched by the guide groove between the receiving seat 32 of the louver base 25 and the bottom portion 25b. It has a guide function. The motor base 17 is fixed to the rear side guide wall 16 of the outlet 4 with a tap screw 24 or the like.

  On the other hand, as shown in FIG. 2 and FIG. 3, the louver unit 14 is arranged in the louver base 25 with a space in the lateral direction and is pivotally supported by the vertical axis 26. A plurality of vertical louvers 27, a horizontally long connecting rod 28 that connects and links the plurality of vertical louvers 27, and is pivotally supported by the louver base 25 and is rotatable at one end of the connecting rod 28. And a rotating shaft 20 for power transmission to be connected. These members of the louver base 25, the vertical louver 27, the connecting rod 28 and the rotating shaft 20 are made of synthetic resin, and each member is removed at each connecting portion so that cleaning can be easily performed. Can be connected freely.

  The louver base 25 is formed of a flat plate made of a synthetic resin such as ABS (acrylonitrile butadiene styrene) or PP (polypropylene) in a horizontally long rectangular frame shape, and is surrounded by a top portion 25a, a bottom portion 25b, and both side portions 25c and 25d. The internal space is an air flow path. A plurality of partition walls 25e are formed integrally with the top portion 25a and the bottom portion 25b at intervals in the air flow passage in the lateral direction, and the rigidity of the louver base 25 is ensured.

  At one end portion of the louver base 25, an opening 30 for fitting with the joint shaft 19 of the drive motor 15 is continuously formed across the side portion 25c and the bottom portion 25b. The opening 30 includes a side opening 30a and a bottom opening 30b. The side opening 30a has a shape that allows the cylindrical portion 21 and the flange 22 on the drive motor side and the joint shaft 19 to enter as shown in FIG. It is formed. Further, as shown in FIGS. 9 and 10, the bottom opening 30 b is set to a length that guides the cylindrical portion 21 of the motor base 17 to the fitting hole 31 directly below the rotating shaft 20.

  A receiving seat 32 that rotatably receives the lower end fitting portion 41 of the rotating shaft 20 is formed above the bottom opening 30b at a distance from the bottom portion 25b of the louver base 25. The receiving seat 32 constitutes a part of the louver base 25. As shown in FIG. 10, the receiving seat 32 is formed in a lateral L shape when viewed from the front, with one end thereof being a side portion 25c of the louver base 25 and the other end being a bottom portion. 25b is connected to each other. The space between the receiving seat 32 and the bottom 25b functions as a guide groove 32b of the flange 22 that reliably guides the louver unit 14 to the joint shaft 19. The receiving seat 32 is formed with a keyhole-shaped guide hole 32a that leads the joint shaft 19 to the fitting portion 41 of the rotary shaft 20 continuously to the side opening 30a, and a joint is formed at the rear end portion of the guide hole 32a. A fitting hole 31a for positioning and fitting the shaft 19 is formed.

  On the other hand, as shown in FIGS. 2, 3 and 7, the vertical louver 27 is composed of a flat blade piece made of synthetic resin, and a vertical longitudinal axis 26 is fixed on the back side thereof, and on the front side. A connecting pin 33 for rotatably connecting to the connecting rod 28 is projected downward. The vertical louvers 27 are arranged in the interior space of the louver base 25 at a plurality of intervals in the lateral direction, and the vertical axis 26 is rotatably supported by the top portion 25 a and the bottom portion 25 b of the louver base 25. The wind direction of the air flowing to the outlet 4 side can be changed in the left-right direction.

  The connecting rod 28 is made of a synthetic resin rod, and is arranged in the lateral direction so as to avoid the partition wall 25e on the front side of the louver base 25. As shown in FIG. 7, the connecting pin 33 of the vertical louver 27 is rotatably connected to a locking hole 28 a formed at an interval in the connecting rod 28, and a plurality of pins are moved by the lateral movement of the connecting rod 28. The vertical louver 27 is rotated in conjunction with it.

  Further, as shown in FIG. 2, an engagement portion 35 with an engagement hole 35 a for engaging and fixing the louver base 25 to the side surface of the outlet 4 is provided on the side portion 25 d on the other end side of the louver base 25. It is integrally formed.

  The power transmission rotary shaft 20 is disposed on one end side of the louver unit 14. The rotary shaft 20 is made of synthetic resin, and as shown in FIGS. 11 and 12, the rotary shaft portion 40, the fitting portion 41 formed at the lower end of the rotary shaft portion 40, The arm portion 42 is connected to the connecting rod 28. The upper end of the rotary shaft portion 40 is rotatably supported by the top portion 25 a of the louver base 25.

  As shown in FIG. 12, the fitting portion 41 is formed with a fitting hole 41 a that is formed at the lower end of the rotating shaft portion 40 and fits the joint shaft 19. An insertion port 45 communicating with the fitting hole 41a and allowing the joint shaft 19 to enter from the lateral direction is formed in the lateral direction. The peripheral wall of the fitting part 41 forms a substantially C-shaped guide 46 in a plan view, and the guide 46 is an arcuate guide groove 47 (see FIG. 7) formed in the bottom 25b side receiving seat 32 of the louver base 25. ) Is engaged and guided in a swingable manner.

  Further, the fitting portion 41 is provided with a detent means 49 for rotating integrally with the joint shaft 19. The anti-rotation means 49 is formed with a pair of parallel anti-rotation walls 49a on the inner side of the guide 46 of the fitting portion 41 so as to match the non-circular cross-sectional shape of the joint shaft 19 and continuous with the mouth wall of the joint shaft insertion port 45. The distance D1 between the rotation stop walls 49a is formed to be approximately the same size as the distance D2 of the parallel cut surfaces formed in the shaft portion 19a of the joint shaft 19.

  As shown in FIGS. 7 and 9, the receiving seat 32 of the louver base 25 is formed with a guide groove 47 that is opposed to the guide 46 of the fitting portion 41 and guides the guide 46 so as to be rotatable. The guide groove 47 is formed between two arcuate ribs 50 protruding upward from the receiving seat 32 of the louver base 25. The rib 50 causes the fitting portion 41 of the rotating shaft 20 to come out of the receiving seat 32 of the louver base 25 due to an impact when the fitting portion 41 of the rotating shaft 20 and the joint shaft 19 of the drive motor 15 are fitted. Is to prevent.

  Further, as shown in FIG. 10, a recess 52 for restricting the angle is formed with a predetermined circumferential length at the bottom of the guide groove 47, and a part of the lower end of the guide 46 on the fitting portion 41 side is A protrusion 53 that moves by engaging with the recess 52 is formed to project, and the movement of the protrusion 53 is prevented by the wall surface 52a (see FIG. 9) at the end and the start of the recess 52, whereby the turning angle of the fitting portion 41 is predetermined. The angle is regulated.

  The arm portion 42 of the rotating shaft 20 protrudes in the horizontal direction from the peripheral wall of the fitting portion 41, and a connecting pin 54 is rotatably connected to the locking hole 28 a of the connecting rod 28 at the tip of the arm portion 42. When the rotation of the rotary shaft 20 causes the arm portion 42 to pivot, the connecting rod 28 moves in the horizontal direction, and the movement of the connecting rod 28 causes the vertical louver 27 to rotate about the vertical axis 26. The wind direction in the left and right direction can be changed.

  The connecting portion of the connecting rod 28 where the arm portion 42 and the vertical louver 27 are connected is formed with a concave portion 28b for restricting the rotation angle, and the side wall surface of the concave portion 28b and the arm portion 42 and the vertical louver 27 are in contact with each other. By contacting, the rotation angle of these members is regulated.

  In the above configuration, when it is desired to clean the louver unit 14 or the indoor fan 9 on the back side, the louver unit 14 can be removed from the outlet 4 of the indoor unit 1. To remove the louver unit 14, first, the engaging portion 35 at the other end of the louver unit 14 is detached from the side of the outlet 4, and the joint shaft 19 is engaged with the fitting hole 41 a of the louver unit 14. To be removed from the opening 30. Thereby, the louver unit 14 can be easily removed from the outlet 4.

  To attach the louver unit 14 to the outlet 4 after cleaning the louver unit 14 or the like, the opening 30 of the louver unit 14 is inserted into the joint shaft 19 as shown in FIG. Then, the bottom opening 30b of the louver unit 14 is inserted into the cylinder portion 21 of the motor base 17, the side opening 30a of the louver unit 14 is inserted into the joint shaft 19, and the bottom portion 25b of the louver base 25 and the receiving seat 32. The cylinder 21 is positioned in the fitting hole 31 of the louver base 25, and the joint shaft 19 is inserted into the fitting hole 41 a of the fitting 41. The shaft portion 19a is fitted while being regulated by the detent wall 49a. Thereby, the rotating shaft 20 is connected to the joint shaft 19 so as to be integrally rotatable.

  Then, if the louver unit 14 is rotated around the cylinder portion 21 of the motor base 17 and the engaging portion 35 at the other end of the louver base 25 is engaged with the engaging portion at the side surface of the outlet 4, Installation of the unit 14 is completed.

  If the drive motor 15 is driven and rotated in this state, the rotation is transmitted to the joint shaft 19 via the motor shaft 15a. At this time, the protrusion 19b of the joint shaft 19 and the concave portion of the cylinder portion 21 of the motor base 17 are transmitted. 23, the rotation of the joint shaft 19 is restricted to a predetermined angle.

  The rotational force transmitted to the joint shaft 19 is transmitted to the fitting portion 41 of the rotary shaft 20 through the rotation stop wall 49a, rotates the rotary shaft 20, and from the connecting rod 28 to each vertical louver via the arm portion 42. The louver angle can be changed by a desired angle.

  As described above, the rotating shaft 20 of the louver unit 14 is provided with the fitting portion 41 that is detachably connected to the motor shaft (including the joint shaft) of the wind direction changing drive motor 15 of the outlet 4 through the opening 30 of the louver base. Since the fitting part 41 of the rotating shaft and the motor shaft 15a are directly connected without a gear, it is possible to prevent the generation of noise due to the engagement of the gear. Further, since the rotation preventing means 49 is provided in the fitting portion 41, reliable power transmission is possible.

  In addition, this invention is not limited to the said embodiment, Of course, correction and a change can be added within the scope of the present invention. For example, although the example which provided the wind direction change apparatus in the indoor unit of the air conditioner was shown in the said embodiment, you may install in air outlets, such as a unit bath air conditioning equipment and a warm air heater. In the above embodiment, the connection structure between the joint shaft 19 and the fitting portion 41 of the rotating shaft 20 has been described. However, the motor shaft 15a is directly connected to the fitting portion 41 of the rotating shaft 20 without using the joint shaft. A configuration may be adopted.

Side surface sectional drawing of the indoor unit of the air conditioner which shows embodiment of this invention Front view of louver unit Plan sectional view of the louver unit The perspective view which shows the attachment process to the drive part of a louver unit. Side sectional view showing how the louver unit is mounted on the drive unit Exploded perspective view of drive unit Exploded perspective view showing the configuration of the power transmission part of the louver unit Front view of the power transmission part of the louver unit AA sectional view of FIG. BB sectional view of FIG. Cross section of the louver unit's power transmission rotary shaft The bottom view which shows the detent | locking means of the rotating shaft and joint shaft of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Indoor unit 2 Casing 3 Suction inlet 4 Outlet 5-7 Main heat exchanger 8 Auxiliary heat exchanger 9 Indoor fan 10,11 Horizontal louver 12 Horizontal axis 13 Wind direction change apparatus 14 Louver unit 15 Drive motor 15a Motor shaft 16 Back side Guide wall 17 Motor base 18 Screw 19 Joint shaft 20 Rotating shaft 21 Tube portion 22 Guide flange 25 Louver base 27 Vertical louver 28 Connecting rod 20 Opening 31 Fitting hole 32 Receiving seat 33 Connecting pin 35 Engaging portion 40 Rotating shaft portion 41 Fitting Joint part 42 Arm part 45 Insertion slot 46 Guide 47 Guide groove 49 Anti-rotation means 50 Rib 53 Restriction piece

Claims (21)

A wind direction changing device provided with a louver unit in which a plurality of vertical louvers are arranged on a louver base at intervals in the horizontal direction and pivotally supported, and the louver unit is detachably provided at an outlet. A rotating shaft communicating with the vertical louver is rotatably provided on the louver base, and a fitting portion is provided on the rotating shaft to be connected to a motor shaft of a driving motor for changing the air direction of the outlet. A wind direction changing device, wherein a portion is detachably connected to the motor shaft through an opening formed in the louver base. The wind direction changing device according to claim 1, wherein a joint shaft is fitted to a tip of the motor shaft, and the joint shaft is detachably connected to a fitting portion of the rotating shaft. The wind direction changing device according to claim 2, wherein the louver unit and the joint shaft are made of synthetic resin. The wind direction changing device according to claim 1 or 2, wherein the fitting portion of the rotating shaft is provided with a rotation preventing means for rotating the rotating shaft integrally with a motor shaft or a joint shaft. The said rotation prevention means is formed in the cross-sectional shape of the fitting part of the said rotating shaft, and the motor shaft or joint shaft fitted to this in the non-circular shape with respect to the shaft center. Wind direction change device. An opening of the louver base is formed continuously from one side of the louver base to the bottom surface of the louver base, and an insertion port for fitting the motor shaft from the side in the fitting portion of the rotating shaft. The fitting portion is detachably fitted to the motor shaft or the joint shaft from the lateral direction by allowing the louver unit to enter the motor shaft or the joint shaft from the lateral direction through the side and bottom openings of the louver unit. The wind direction changing device according to claim 1, wherein the wind direction changing device is combined. The wind direction changing device according to claim 1, wherein the louver base is formed in a horizontally long rectangular frame shape, and the vertical axis of the vertical louver is rotatably supported on the top and bottom of the louver base. . The wind direction changing device according to claim 7, wherein a partition wall that connects the top and bottom of the louver base is disposed at a lateral interval. The louver base is formed in a horizontally long rectangular frame shape, the upper end of the rotating shaft is rotatably supported on the top of the louver base, and the fitting portion formed at the lower portion of the rotating shaft is a bottom portion of the louver base The wind direction changing device according to claim 1, wherein the wind direction changing device is rotatably supported by a side receiving seat. An arcuate guide is provided in the fitting portion, and a guide groove for movably engaging the guide is formed in a receiving seat on the bottom side of the louver base facing the guide. The wind direction change apparatus of 9. The wind direction changing device according to claim 10, wherein a retaining rib that protrudes upward from a receiving seat of the louver base is formed on a groove wall of the guide groove. The wind direction changing device according to claim 1 or 2, further comprising guide means for guiding the fitting portion of the louver unit to the motor shaft or the joint shaft. 13. The wind direction changing device according to claim 12, wherein the guide means is formed of a cylindrical portion that is formed so as to protrude from the wall surface of the outlet so that the motor shaft or the joint shaft passes therethrough. A guide flange is formed at the upper end of the cylindrical portion, and a guide groove is formed from the opening edge to the fitting portion so as to guide from the opening to the fitting portion while sandwiching the guide flange in the vertical direction. The wind direction changing device according to claim 13. The wind direction changing device according to claim 1, wherein an angle regulating means for regulating a rotation angle of the vertical louver is provided. In the power transmission path from the drive motor to the vertical louver, the angle restricting means is composed of a protrusion formed on one of the rotating part and its receiving part, and a recess formed on the other with a predetermined circumference. The wind direction changing device according to claim 15. The wind direction changing device according to claim 16, wherein the angle regulating means is formed in a fitting portion of a rotating shaft. The wind direction changing device according to claim 16, wherein the angle regulating means is formed between the joint shaft and the cylindrical portion. The wind direction changing device according to claim 16, wherein the angle regulating means is formed between a rotating shaft and a vertical louver. An air conditioner characterized in that the wind direction changing device according to any one of claims 1 to 19 is provided at an outlet of an indoor unit. The air conditioner according to claim 20, wherein a horizontal louver is rotatably supported at the outlet.

Images