JP2011080616A - Air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate assembly work in an air conditioner, in which a wind direction changing blade changed in its attitude by transmission of drive power of a driving mechanism via a link mechanism is arranged in an outlet of conditioned air. <P>SOLUTION: An indoor unit 1 includes the horizontal blade 6, driving motors 82a, 82b, and link mechanisms 83a, 83b. The horizontal blade 6 is arranged in the outlet 4, and its attitude is changed within a prescribed attitude changing range. The link mechanisms 83a, 83b include driving side arms 86a, 86b, and driven side arms 87a, 87b freely rotatably connected to the driving side arms 86a, 86b. The link mechanisms 83a, 83b further include locking parts 101 mutually locking the driving side arms 86a, 86b and the driven side arms 87a, 87b at prescribed positions except for a normal rotation range, which is a rotation range of the driven side arms 87a, 87b to the driving side arms 86a, 86b corresponding to the prescribed attitude changing range. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an air conditioner, and more particularly, to an air conditioner in which wind direction changing blades whose posture is changed by transmitting a driving force of a drive mechanism via a link mechanism are provided at an outlet of conditioned air.

  Conventionally, there exists an air conditioning apparatus as shown by patent document 1 (Unexamined-Japanese-Patent No. 2002-295887). In this air conditioner, wind direction changing blades provided at a conditioned air outlet are connected to a drive motor via a link mechanism.

  The conventional link mechanism includes an arm (hereinafter referred to as a drive side arm) driven by a drive motor, and an arm (hereinafter referred to as a driven side) that is rotatably connected to the arm and transmits a driving force to a wind direction changing blade. Arm). There is a possibility that the driven arm may face various directions before the link mechanism is connected to the wind direction changing blade.

  For this reason, when the operation of connecting the link mechanism to the wind direction adjusting blade is performed, the position of the driven arm is not constant, so that the operator who performs the assembly work of the air conditioner searches for the driven arm. It may be necessary.

  Thus, in a state before the link mechanism is connected to the wind direction change blade, if the driven arm may be disposed at a position inconvenient for the air conditioner assembly operation, the air conditioner assembly operation is performed. There is a possibility that it cannot be easily performed.

  An object of the present invention is to facilitate assembly work in an air conditioner in which wind direction changing blades whose posture is changed by transmission of driving force of a drive mechanism via a link mechanism are provided at an outlet of conditioned air. Is to be able to do.

  An air conditioner according to a first aspect of the present invention includes a main body, a wind direction changing blade, a drive mechanism, and a link mechanism. The main body has a casing in which an outlet for blowing out conditioned air is formed. The wind direction changing blade is provided at the air outlet, and the posture is changed within a predetermined posture changing range. The link mechanism has a driving side arm driven by the driving mechanism and a driven side arm rotatably connected to the driving side arm. The link mechanism is connected to the wind direction changing blade and transmits the driving force of the drive mechanism to the wind direction changing blade. The link mechanism is a mechanism for locking the drive side arm and the driven side arm at a predetermined position other than the normal rotation range that is the rotation range of the driven side arm with respect to the drive side arm corresponding to the predetermined posture change range. It further has a stop. Here, the predetermined posture change range refers to a range in which the posture of the wind direction changing blade is changed in the air conditioner that has been assembled, including during operation and when stopped.

  In this air conditioner, the driven arm can be temporarily fixed to the driving arm at a predetermined position outside the normal rotation range.

  As a result, in the state before the link mechanism is connected to the wind direction changing blade, the position of the driven arm can be made constant so as not to be inconvenient for the assembly work of the air conditioner. Work can be done easily. Moreover, after the link mechanism is connected to the wind direction changing blade, the locking between the driving side arm and the driven side arm is released, so that the driving side arm and the driven side are not assembled during the assembly work of the air conditioner. Never forget to release the temporary fixation with the arm. Further, in the air conditioner that has been assembled, the driving side arm and the driven side arm are not locked again at the time of operation and stop, and the posture change of the wind direction changing blade can be performed stably. it can.

  An air conditioner according to a second aspect is the air conditioner according to the first aspect, wherein the predetermined position is a position where the angle formed by the driving side arm and the driven side arm is smaller than the normal rotation range. It is.

  In this air conditioner, the driven arm can be temporarily fixed to the driving arm in a state where the driven arm is folded to the driving arm.

  Thereby, in the state before connecting a link mechanism to a wind direction change blade | wing, it can avoid easily that a link mechanism interferes with another member.

  An air conditioner according to a third aspect of the present invention is the air conditioner according to the first or second aspect of the present invention, wherein the airflow direction change blade is connected to the driven arm and the airflow of the conditioned air blown out from the air outlet It is a horizontal blade | wing which adjusts the angle of the up-down direction. The casing is configured by mounting the front grill on the bottom frame from the front side of the main body. The air outlet is formed in the front grill. In a state where the link mechanism is not connected to the horizontal blade and the driving side arm and the driven side arm are not locked to each other by the locking portion, at least a part of the driven side arm is Protrudes outside the body.

  In this air conditioner, horizontal vanes that adjust the vertical angle of the air flow of conditioned air blown out from the air outlet are provided as wind direction changing vanes. The horizontal blade is connected to the driven arm after the front grill is mounted on the bottom frame. In this air conditioner, in a state before the front grille is mounted on the bottom frame, when the driving side arm and the driven side arm are not locked to each other, at least a part of the driven side arm is blown. It protrudes toward the outside of the main body from the position where the outlet is formed. For this reason, when performing the operation | work which mounts a front grill to a bottom frame, there exists a possibility that the malfunction where the driven arm of a link mechanism may be pinched | interposed between a front grill and a bottom frame may arise.

  However, in this air conditioner, the driven arm and the driven arm are locked together by the locking portion, so that the driven arm is temporarily fixed to the driving arm at a predetermined position outside the normal rotation range. Can be done.

  Thus, in a state before the front grille is mounted on the bottom frame, the driven arm can be prevented from protruding toward the outside of the main body from the position where the blowout opening is formed by the front grille. For this reason, the operation | work which mounts the front grille which is one of the assembly operations of an air conditioning apparatus to a bottom frame can be performed easily.

  The air conditioner according to a fourth aspect of the present invention is the air conditioner according to the first or second aspect of the invention, wherein the wind direction changing blade is connected to the driven arm, and the airflow of the conditioned air blown out from the outlet. It is a vertical blade | wing which adjusts the angle of the left-right direction.

  In this air conditioner, a vertical vane that adjusts the angle in the left-right direction of the airflow of conditioned air blown out from the air outlet is provided as a wind direction changing vane. This vertical blade | wing is connected with a to-be-driven side arm at the time of the assembly operation of an air conditioning apparatus. In this air conditioner, when the driving side arm and the driven side arm are not locked to each other, the driven side arm enters toward the back side of the main body, and the work for connecting the link mechanism to the vertical blade is performed. There is a possibility that the worker who performs the work needs to grope for the driven arm.

  However, in this air conditioner, the driven arm and the driven arm are locked together by the locking portion, so that the driven arm is temporarily fixed to the driving arm at a predetermined position outside the normal rotation range. Can be done.

  Thereby, it is possible to make it difficult for the operator to search for the driven arm. For this reason, the operation | work which connects the link mechanism which is one of the assembly operations of an air conditioning apparatus to a vertical blade | wing can be performed easily.

  As described above, according to the present invention, the following effects can be obtained.

  In the first invention, the driven arm can be temporarily fixed to the driving arm at a predetermined position outside the normal rotation range. Thereby, the assembly operation | work of an air conditioning apparatus can be performed easily. Moreover, when assembling the air conditioner, it is not forgotten to release the temporary fixing between the driving side arm and the driven side arm. Furthermore, the attitude | position change of a wind direction change blade | wing can be performed stably.

  In the second invention, it is possible to temporarily fix the driven arm to the driving side arm in a state where the driven side arm is folded to the driving side arm side. Thereby, in the state before connecting a link mechanism to a wind direction change blade | wing, it can avoid easily that a link mechanism interferes with another member.

  In the third invention, in a state before the front grille is mounted on the bottom frame, the driven arm is prevented from protruding outward from the position where the air outlet is formed by the front grille. it can. For this reason, the operation | work which mounts the front grille which is one of the assembly operations of an air conditioning apparatus to a bottom frame can be performed easily.

  In the fourth aspect of the invention, it is possible to make it difficult for the operator to search for the driven arm. For this reason, the operation | work which connects the link mechanism which is one of the assembly operations of an air conditioning apparatus to a vertical blade | wing can be performed easily.

It is a front view (state where a horizontal blade | wing closed) of the indoor unit as one Embodiment of the air conditioning apparatus concerning this invention. It is a bottom view (state where a horizontal blade | wing closed) of the indoor unit as one Embodiment of the air conditioning apparatus concerning this invention. It is a right view (state where a horizontal blade | wing closed) of the indoor unit as one Embodiment of the air conditioning apparatus concerning this invention. It is a perspective view (state where a horizontal blade | wing closed) of the indoor unit as one Embodiment of the air conditioning apparatus concerning this invention. It is a perspective view (state where a horizontal blade | wing opened) of the indoor unit as one Embodiment of the air conditioning apparatus concerning this invention. It is a right view (state where a horizontal blade | wing closed) which shows the blower outlet vicinity of an indoor unit. It is a right view which shows the blower outlet vicinity of an indoor unit (The state which opened so that the airflow of the conditioned air which a horizontal blade | wing blows off from a blower outlet may be guided ahead). It is a right view which shows the blower outlet vicinity of an indoor unit (The state which opened so that the airflow of the conditioned air which a horizontal blade | wing blows off from a blower outlet may be guided below). It is a perspective view which shows the mechanism for driving a horizontal blade | wing and a horizontal blade | wing. It is a perspective view which shows the mechanism for driving a horizontal blade | wing. It is a right view (state in which the horizontal blade | wing is not connected with the link mechanism) which shows the blower outlet vicinity of an indoor unit. It is a perspective view which shows the state by which the link mechanism was temporarily fixed. It is a right view which shows the state by which the link mechanism was temporarily fixed. It is a right view which shows the state by which temporary fixing of the link mechanism was cancelled | released. It is a perspective view which shows the mechanism for driving a vertical blade | wing and a vertical blade | wing. It is a top view which shows the mechanism for driving a vertical blade | wing and a vertical blade | wing (state which guides the airflow of the conditioned air which a vertical blade | wing blows off from a blower outlet straight ahead). It is a top view which shows the mechanism for driving a vertical blade | wing and a vertical blade | wing (state which guides the airflow of the conditioned air which a vertical blade | wing blows off from a blower outlet right front). It is a top view which shows the mechanism for driving a vertical blade | wing and a vertical blade | wing (state which guides the airflow of the conditioned air which a vertical blade | wing blows off from a blower outlet to the left front). It is a top view which shows the mechanism for driving a vertical blade | wing and a vertical blade | wing (state which the vertical blade | wing is not connected with the link mechanism). It is a perspective view which shows the state by which the link mechanism was temporarily fixed. It is a perspective view which shows the state by which temporary fixation of the link mechanism was cancelled | released.

  Hereinafter, an embodiment of an indoor unit as an air conditioner according to the present invention will be described based on the drawings.

(1) Schematic configuration of air conditioner An air conditioner according to an embodiment of the present invention includes an indoor unit installed indoors and an outdoor unit installed outdoors. The indoor unit and the outdoor unit are connected by a collective connecting pipe in which refrigerant pipes, transmission lines, and the like are gathered. In order to perform heat exchange and perform indoor air conditioning, an air conditioner includes an indoor heat exchanger of an indoor unit, a compressor of an outdoor unit, an outdoor heat exchanger, an expansion valve, and the like. It has the refrigerant circuit comprised by connecting with a refrigerant pipe. In addition, in order to control the air conditioner, an electrical component box for controlling the indoor unit device in response to a command from a control terminal such as a remote controller is provided in the indoor unit, for controlling the outdoor unit device. An electrical component box is provided in the outdoor unit. And the electrical component box of the indoor unit and the electrical component box of the outdoor unit are connected by a transmission line of the collective connecting pipe.

(2) Configuration of indoor unit <Appearance of indoor unit>
FIG. 1 is a front view of an indoor unit 1 as one embodiment of an air conditioner according to the present invention (a state where horizontal blades 6 are closed). FIG. 2 is a lower side view of the indoor unit 1 (with the horizontal blades 6 closed). FIG. 3 is a right side view of the indoor unit 1 (with the horizontal blades 6 closed). FIG. 4 is a perspective view of the indoor unit 1 (with the horizontal blades 6 closed). FIG. 5 is a perspective view of the indoor unit 1 (a state where the horizontal blades 6 are opened). In the following description, the direction from the rear surface 1f to the front surface 1a of the indoor unit 1 is referred to as the front, the direction connecting the left side surface 1b and the right side surface 1c of the indoor unit 1 is referred to as the left-right direction, and the upper side surface of the indoor unit 1 The direction connecting 1d and the lower surface 1e is referred to as the vertical direction.

  The indoor unit 1 mainly has a main body 2 and a decorative panel 5. The indoor unit 1 is a wall-mounted indoor unit that is fixed in a state where the back surface 1f faces an installation plate (not shown) attached to a wall surface of the room. The main body 2 has a casing 20 that houses various devices. The casing 20 includes a bottom frame 21 that supports various devices, and a front grill 31 that is attached to the bottom frame 21 from the front side. The decorative panel 5 is disposed on the front grill 31 of the main body 2 so as to cover four surfaces except the front surface 1a, the left side surface 1b, the right side surface 1c and the upper side surface 1d of the main body 2, that is, the lower side surface 1e and the rear surface 1f. It is installed from. The indoor unit 1 has a suction port 3 on the upper side surface 1d of the main body 2 (here, the upper side surface portion of the front grill 31), and on the lower side surface 1e of the main body 2 (here, the lower side surface portion of the front grill 31). The blower outlet 4 is provided. The blower outlet 4 is provided with a horizontal blade 6 that adjusts the vertical angle of the conditioned air stream blown from the blower outlet 4. The indoor unit 1 does not suck indoor air from the front surface 1a, and sucks indoor air exclusively from the suction port 3 on the upper side surface 1d of the main body 2. For this reason, in the interior of the indoor unit 1, the indoor air generally flows from the upper side 1 d side of the indoor unit 1 toward the lower side 1 e side of the indoor unit 1.

  Inside the main body 2 of the indoor unit 1, a cross flow fan 7 is provided near the back side at the approximate center of the main body 2 in the left side view or the right side view. Further, an upstream heat exchanger (not shown) having an inverted V shape in the left side view or the right side view is provided on the upstream side of the cross flow fan 7 and is sucked into the cross flow fan 7. Prior to this, air conditioning is performed by passing room air through an indoor heat exchanger (not shown). Further, the suction port 3 is provided with an air filter (not shown), and dust in the indoor air sucked into the indoor unit 1 is removed. Here, although not shown, the cross flow fan 7 has the same length as the suction port 3 in the front view, and is long and horizontally disposed along the longitudinal direction of the main body 2. The indoor heat exchanger (not shown) is also formed in a shape that extends long in the longitudinal direction of the main body 2, and is disposed between the suction port 3 and the air outlet 4 that extend long. Between the crossflow fan 7 and the blower outlet 4, a diffuser-shaped blowout passage 8 is provided. The guide surface 8a of the blow-out passage 8 has a smooth curve having a center of curvature on the cross flow fan 7 side in the left side view or the right side view, and the curvature radius increases toward the lower side. In addition, the cross flow fan 7 rotates in the clockwise direction and blows air when viewed from the right side, and the central axis thereof is disposed closer to the back surface 1f. And the blowing channel | path 8 is formed diagonally toward the front side of the lower surface 1e. The blowout flow path 8 is provided with a vertical blade 9 that adjusts the angle in the left-right direction of the conditioned air flow blown from the blower outlet 4 at a position that can be seen from the blower outlet 4.

<Basic configuration of horizontal blade and mechanism for driving horizontal blade>
FIG. 6 is a right side view showing the vicinity of the air outlet 4 of the indoor unit 1 (a state where the horizontal blade 6 is closed). FIG. 7 is a right side view showing the vicinity of the air outlet 4 of the indoor unit 1 (the state in which the horizontal blade 6 is opened so as to guide the air flow of conditioned air blown out from the air outlet 4 forward). FIG. 8 is a right side view showing the vicinity of the air outlet 4 of the indoor unit 1 (a state in which the horizontal blade 6 is opened so as to guide the air flow of conditioned air blown out from the air outlet 4 downward). FIG. 9 is a perspective view showing the horizontal blade 6 and a mechanism for driving the horizontal blade 6. FIG. 10 is a perspective view showing a mechanism for driving the horizontal blade 6.

  The horizontal blades 6 as the wind direction changing blades are plate-like members that are long in the left-right direction and can cover substantially the entire outlet 4. For this reason, the horizontal blade | wing 6 can open and close the blower outlet 4. FIG.

  The horizontal blade 6 has blade side connecting portions 61, 62, 63, 64, 65 connected to a horizontal blade moving mechanism 70 (described later). The blade side connecting portions 61, 62, 63, 64, 65 are on the side opposite to the surface of the horizontal blade 6 that can be seen from the outside of the indoor unit 1 in a state where the horizontal blade 6 covers the outlet 4. Arranged on the surface. Further, the blade side connecting portions 61, 62, 63, 64, 65 are composed of first blade side connecting portions 61, 62, 63 and second blade side connecting portions 64, 65. The first blade side connecting portions 61, 62, 63 are near the front end of the horizontal blade 6, near both ends in the left-right direction of the horizontal blade 6, and near the center of the horizontal blade 6 in the left-right direction. Has been placed. Here, the front end portion of the horizontal blade 6 refers to an end portion close to the front side of the indoor unit 1 in a state where the horizontal blade 6 is closed. The second blade side connecting portions 64 and 65 are disposed in the vicinity of the rear end portion of the horizontal blade 6 and in the vicinity of the center of the horizontal blade 6 in the left-right direction. Here, the rear end portion of the horizontal blade 6 refers to an end portion on the side close to the back side of the indoor unit 1 when the horizontal blade 6 is closed. The second blade side connecting portions 64 and 65 are arranged side by side in a direction parallel to the horizontal direction of the horizontal blade 6. The first blade side connecting portions 61, 62, 63 and the second blade side connecting portions 64, 65 each have a shaft support portion. Each shaft support portion rotatably supports support shafts 75a, 75b, 75c, 89a, 89b (described later).

  The horizontal blade 6 can change its posture within a predetermined posture change range. More specifically, the horizontal blades 6 are opened so that the horizontal blades 6 are guided forward from the state in which the horizontal blades 6 are closed (see FIG. 6). Through (see FIG. 7), the posture can be changed within a range up to the state where the horizontal blade 6 is opened so as to guide the air flow of the conditioned air blown out from the outlet 4 downward (see FIG. 8). Here, the predetermined posture change range refers to a range in which the posture of the horizontal blade 6 is changed in the indoor unit 1 that has been assembled, including during operation and when stopped.

  The horizontal blade moving mechanism 70 is arranged such that the position of the horizontal blade 6 with respect to the opening of the air outlet 4 is changed from a state in which the air outlet 4 is closed (see FIG. 6) to a state in which the air outlet 4 is opened (see FIGS. 7 and 8). Is a mechanism for adjusting the posture of the horizontal blade 6 within a predetermined posture change range.

  Although not shown in detail, the horizontal blade moving mechanism 70 is provided on the bottom frame 21 constituting the main body 2 and the casing 20 so as to face the blowout flow path 8, and has an angle with the thrusting mechanisms 71 a, 71 b, 71 c. Adjustment mechanisms 81a and 81b.

  The protrusion mechanisms 71 a, 71 b, 71 c are arranged so that the first blade side connecting portions 61, 62, 63, which are portions where the horizontal blade 6 and the protrusion mechanisms 71 a, 71 b, 71 c are connected, approach or separate from the outlet 4. As such, the first blade side connecting portions 61, 62, 63 can be moved.

  The push-out mechanisms 71a, 71b, 71c are rack / pinion mechanisms, and have pinion gears 72a, 72b, 72c and moving members 73a, 73b, 73c. Each pinion gear 72a, 72b, 72c is connected to a drive shaft 77 (described later) of a push-out mechanism driving motor 76 (described later). The moving members 73a, 73b, and 73c have racks 74a, 74b, and 74c that mesh with the pinion gears 72a, 72b, and 72c, and support shafts 75a, 75b, and 75c. The racks 74a, 74b, and 74c are provided from the vicinity of the upper end portion to the vicinity of the lower end portion of the moving members 73a, 73b, and 73c. The support shafts 75a, 75b, and 75c are inserted through the shaft support portions of the first blade side connecting portions 61, 62, and 63 of the horizontal blade 6 in parallel to the horizontal direction of the horizontal blade 6, and the horizontal blade 6 Is rotatably supported. The protrusion mechanisms 71a, 71b, 71c have a protrusion mechanism driving motor 76. The pushing mechanism driving motor 76 is a stepping motor that is driven by inputting a pulse. In addition, a drive shaft 77 that rotates when the drive mechanism driving motor 76 is driven is connected to the drive mechanism driving motor 76. Further, the drive shaft 77 is connected to the pinion gears 72a, 72b, 72c of the projecting mechanisms 71a, 71b, 71c as described above. Therefore, the push-out mechanism driving motor 76 can rotate the pinion gears 72a, 72b, and 72c by rotating the drive shaft 77.

  With such a configuration, in the thrusting mechanisms 71a, 71b, 71c, the pinion gears 72a, 72b, 72c are rotated by the thrusting mechanism driving motor 76, and the driving force is transmitted to the racks 74a, 74b, 74c to be supported. The positions of the shafts 75a, 75b, and 75c change. For this reason, the 1st blade | wing side connection part 61, 62, 63 of the horizontal blade | wing 6 can be moved by the drive of the protrusion mechanism 71a, 71b, 71c.

  The angle adjusting mechanisms 81a and 81b are arranged so that the second blade side connecting portions 64 and 65, which are portions where the horizontal blade 6 and the angle adjusting mechanisms 81a and 81b are connected, are close to or separated from the outlet 4. The blade side connecting portions 64 and 65 can be moved.

  The angle adjustment mechanisms 81a and 81b have angle adjustment mechanism drive motors 82a and 82b as drive mechanisms and link mechanisms 83a and 83b. The angle adjustment mechanism driving motors 82a and 82b are stepping motors that are driven by inputting a pulse. Further, the angle adjustment mechanism drive motors 82a and 82b have drive shafts 84a and 84b. Gears 85a and 85b are provided on the drive shafts 84a and 84b. The link mechanisms 83a and 83b are mechanisms for transmitting the driving force of the angle adjusting mechanism driving motors 82a and 82b to the horizontal blades 6, and include driving side arms 86a and 86b and driven side arms 87a and 87b. is doing. One end of each of the driving side arms 86a and 86b is disposed in the vicinity of the driving shafts 84a and 84b, and has gears 88a and 88b that mesh with the gears 85a and 85b. As a result, the angle adjustment mechanism drive motors 82a and 82b can drive the link mechanisms 83a and 83b via the drive shafts 84a and 84b, the gears 85a and 85b, and the gears 88a and 88b. The drive-side arms 86a and 86b are driven to swing by the rotation of the drive shafts 84a and 84b. Further, the other end portions of the driving side arms 86a and 86b are rotatably connected to the upper end portions of the driven side arms 87a and 87b. Furthermore, support shafts 89a and 89b are formed in the driven side arms 87a and 87b in the vicinity of the end opposite to the end connected to the drive side arms 86a and 86b. The support shafts 89a and 89b are respectively engaged with the shaft support portions of the second blade side connecting portions 64 and 65 of the horizontal blade 6, and support the horizontal blade 6 so as to be rotatable. Here, the driven side arm 87a and the driven side arm 87b are integrally formed, and the link mechanisms 83a and 83bb operate integrally.

  With such a configuration, in the angle adjusting mechanisms 81a and 81b, the gears 85a and 85b and the gears 88a and 88b are rotated by the angle adjusting mechanism driving motors 82a and 82b, and the driven arm is driven via the driving arms 86a and 86b. The driving force is transmitted to 87a and 87b, and the positions of the support shafts 89a and 89b change. For this reason, the position of the 2nd blade | wing side connection parts 64 and 65 of the horizontal blade | wing 6 can be moved by the drive of the angle adjustment mechanisms 81a and 81b.

  And the horizontal blade | wing 6 is in the state (refer FIG. 6) with the horizontal blade | wing 6 closed by the horizontal blade | wing moving mechanism 70 which has said protrusion mechanism 71a, 71b, 71c and angle adjustment mechanism 81a, 81b. The posture can be changed within a predetermined posture change range between the state (see FIG. 8) opened so as to guide the conditioned air flow blown out from the blow-out port 4 downward. Here, when the horizontal blade 6 is in a closed state (see FIG. 6), an angle formed by the driving side arms 86a and 86b and the driven side arms 87a and 87b is an angle α1, and the horizontal blade 6 is An angle formed by the driving side arms 86a and 86b and the driven side arms 87a and 87b in the state where the air flow of the conditioned air to be blown is opened so as to guide downward (see FIG. 8) is an angle α2. Then, the normal rotation range that is the rotation range of the driven side arms 86a and 86b with respect to the driving side arms 87a and 87b corresponding to the predetermined posture change range of the horizontal blade 6 is a range from the angle α1 to the angle α2 (here, , Α2> α1). The angle formed between the drive side arms 86a and 86b and the driven side arms 87a and 87b is the rotation center X1 at the end of the drive side arms 86a and 86b on the drive shafts 84a and 84b side and the drive side arms 86a and 86b. Is an angle between a line XY1 connecting the rotation center Y1 of the other end of the first line and a line YZ1 connecting the rotation center Y1 and the rotation center Z1 of the support shafts 89a and 89b.

<Temporary fixing structure of link mechanism of horizontal blade moving mechanism>
FIG. 11 is a right side view showing the vicinity of the air outlet 4 of the indoor unit 1 (a state where the horizontal blade 6 is not connected to the link mechanisms 83a and 83b). FIG. 12 is a perspective view showing a state in which the link mechanisms 83a and 83b are temporarily fixed. FIG. 13 is a right side view showing a state in which the link mechanisms 83a and 83b are temporarily fixed. FIG. 14 is a right side view showing a state in which the temporary fixing of the link mechanisms 83a and 83b is released.

  In the indoor unit 1 having the horizontal blade 6 and the horizontal blade driving mechanism 70 that drives the horizontal blade 6 as described above, the horizontal blade 6 is attached to the bottom frame 21 after the front grill 31 is mounted on the bottom frame 21. It is connected to the drive side arms 87a and 87b. For this reason, in a state before the front grill 31 is attached to the bottom frame 21, when the driving side arms 86a and 86b and the driven side arms 87a and 87b are not temporarily fixed, the driven side arms 87a and 87b. However, there is a possibility of facing in various directions. If the driven arms 87a and 87b are arranged at a position inconvenient for the assembly operation of the indoor unit 1, the assembly operation of the indoor unit 1 may not be easily performed.

  In particular, here, as shown in FIG. 11, at least a part of the driven side arms 87 a and 87 b protrudes toward the outside (here, the lower side) of the main body 2 from the position where the air outlet 4 is formed. There is a fear (see driven arms 87a and 87b shown by the two-dot chain line in FIG. 11). For this reason, when performing the operation | work which mounts the front grille 31 to the bottom frame 21, the malfunction that the driven side arms 87a and 87b of link mechanism 83a and 83b may be pinched | interposed between the front grille 31 and the bottom frame 21 may arise. There is.

  Therefore, in the indoor unit 1, the link mechanisms 83a and 83b are provided with a normal rotation range (that is, an angle α1) that is a rotation range of the driven side arms 87a and 87b corresponding to the predetermined posture change range with respect to the driving side arms 86a and 86b. And a locking portion 101 that locks the driving side arms 86a and 86b and the driven side arms 87a and 87b to each other at a predetermined position other than the range from the angle α2 to the angle α2.

  The locking part 101 has convex parts 102a and 102b and concave parts 103a and 103b that engage with the convex parts 102a and 102b. The convex portions 102a and 102b are portions that protrude from the vicinity of the center in the longitudinal direction of the driven side arms 87a and 87b toward the driving side arms 86a and 86b. The recesses 103a and 103b are formed near the center in the longitudinal direction of the drive side arms 86a and 86b. The angle formed between the driving side arms 86a and 86b and the driven side arms 87a and 87b in a state where the driving side arms 86a and 86b and the driven side arms 87a and 87b are locked with each other by the locking portion 101 is an angle. The angle α3 is smaller than α1, and is smaller than the normal rotation range.

  Therefore, in the indoor unit 1, the driven side arms 87a and 87b are connected to the driving side arms 86a and 86a at a predetermined position (here, the position of the angle α3) other than the normal rotation range (range from the angle α1 to the angle α2). It becomes possible to temporarily fix to 86b.

  Thereby, in a state before the link mechanisms 83a and 83b are connected to the horizontal blades 6, the positions of the driven arms 87a and 87b can be made constant so as not to be inconvenient for the assembly work of the indoor unit 1. The assembly operation of the indoor unit 1 can be easily performed. In particular, here, in a state before the front grill 31 is mounted on the bottom frame 21, the driven arms 87 a and 87 b are located on the outer side of the main body 2 than the position where the blower outlet 4 is formed by the front grill 31 (here, It is possible not to protrude toward the lower side. For this reason, the operation | work which mounts the front grille 31 which is one of the assembly operations of the indoor unit 1 to the bottom frame 21 can be performed easily.

  Further, in the indoor unit 1, the driven side arms 87a and 87b are temporarily fixed to the driving side arms 86a and 86b in a state where the driven side arms 87a and 87b are folded to the driving side arms 86a and 86b. It becomes possible.

  Thereby, in the state before connecting the link mechanisms 83a and 83b to the horizontal blade | wing 6, it can avoid easily that the link mechanisms 83a and 83b interfere with another member.

  Moreover, after the link mechanisms 83a and 83b are connected to the horizontal blades 6, the locking of the driving side arms 86a and 86b and the driven side arms 87a and 87b is released, so that the assembly operation of the indoor unit 1 is performed. Sometimes, it is not forgotten to release the temporary fixing between the driving side arms 86a and 86b and the driven side arms 87a and 87b.

  Furthermore, in the indoor unit 1 that has been assembled, the driving-side arms 86a and 86b and the driven-side arms 87a and 87b are not locked again at the time of operation and stop, and the posture change of the horizontal blades 6 can be stabilized. Can be done automatically.

<Basic configuration of vertical blade and mechanism for driving vertical blade>
FIG. 15 is a perspective view showing the vertical blade 9 and a mechanism for driving the vertical blade 9. FIG. 16 is a top view showing the vertical blades 9 and a mechanism for driving the vertical blades 9 (a state in which the vertical blades 9 guide the air flow of conditioned air blown out from the air outlet 4 straight forward). FIG. 17 is a top view showing the vertical blade 9 and a mechanism for driving the vertical blade 9 (a state in which the vertical blade 9 guides the air flow of conditioned air blown out from the outlet 4 forward to the right). FIG. 18 is a top view showing the vertical blades 9 and a mechanism for driving the vertical blades 9 (a state in which the vertical blades 9 guide the airflow of conditioned air blown out from the outlet 4 to the left front).

  The vertical blades 9 as the wind direction changing blades are plate-like members arranged in a plurality in the left-right direction in a state where they are erected in the blowout flow path 8.

  The upper and lower portions of the vertical blade 9 are pivotally supported on the wall surface of the bottom frame 21 constituting the blowout flow path 8 (see the rotation center O in FIGS. 16 to 18). The vertical blade 9 is connected to a vertical blade moving mechanism 90 (described later).

  The vertical blade 9 can change its posture within a predetermined posture change range. More specifically, in the vertical blade 9, the vertical blade 9 is blown out from the blowout port 4 from a state in which the airflow of the conditioned air blown out from the blowout port 4 is straightly guided forward (see FIG. 12). Within a range from a state in which the air flow of conditioned air is guided forward right (see FIG. 13) and a state in which the vertical blade 9 guides the air flow of conditioned air blown out from the outlet 4 to the left front (see FIG. 14). The posture can be changed. Here, the predetermined posture change range refers to a range in which the posture of the vertical blade 9 is changed in the indoor unit 1 that has been assembled, including during operation and when stopped.

  The vertical blade moving mechanism 90 is a mechanism for adjusting the posture of the vertical blade 9 within a predetermined posture change range by moving the position of the vertical blade 9.

  Although not shown in detail, the vertical blade moving mechanism 90 is provided on the bottom frame 21 constituting the main body 2 and the casing 20 so as to face the blowout flow path 8, and includes a connecting rod 91 and an angle adjusting mechanism 92. Have.

  The connecting rod 91 is a rod-shaped member that connects the plurality of vertical blades 9 to each other. The connecting rod 91 extends in the left-right direction so that the vertical blade 9 is inserted in the left-right direction at a position shifted forward from the rotation center O of the vertical blade. Thus, the plurality of vertical blades 9 are integrally swung left and right by moving the connecting rod 91 in the left-right direction. The connecting rod 91 is connected to the angle adjusting mechanism 92 at the blade side connecting portion 91a.

  In the angle adjusting mechanism 92, the blade connecting portion 91a of the connecting rod 91, which is a portion where the vertical blade 9 and the angle adjusting mechanism 92 are connected, can be moved in the left-right direction.

  Although not shown in detail, the angle adjustment mechanism 92 is provided on the bottom frame 21 constituting the main body 2 and the casing 20 so as to face the blowout flow path 8, and includes an angle adjustment mechanism drive motor 93 as a drive mechanism. And a link mechanism 94. The angle adjustment mechanism drive motor 93 is a stepping motor that is driven by a pulse input. The angle adjustment mechanism drive motor 93 has a drive shaft 95. The link mechanism 94 is a mechanism for transmitting the driving force of the angle adjustment mechanism driving motor 93 to the vertical blades 9, and includes a driving side arm 96 and a driven side arm 97. One end of the drive side arm 96 is connected to the drive shaft 95. Thereby, the angle adjusting mechanism driving motor 93 can drive the link mechanism 94. The drive side arm 96 is driven to swing by the rotation of the drive shaft 95. The other end of the driving side arm 96 is rotatably connected to one end of the driven side arm 97. Further, a support shaft 98 is formed on the driven arm 97 in the vicinity of the end opposite to the end connected to the drive side arm 96. The support shaft 98 is engaged with the shaft support portion of the blade side connection portion 91a of the connection rod 91 that connects the plurality of vertical blades 9, respectively.

  With such a configuration, in the angle adjusting mechanism 92, the driving shaft 95 is rotated by the angle adjusting mechanism driving motor 93, and the driving force is transmitted to the driven side arm 97 via the driving side arm 96, so The position of the blade side connecting portion 91a of the connecting rod 91 that connects the blade 9 changes. For this reason, the position of the blade | wing side connection part 91a of the vertical blade | wing 9 can be moved by the drive of the angle adjustment mechanism 92. FIG.

  And the vertical blade | wing 9 guides the airflow of the conditioned air which the vertical blade | wing 9 blows off from the blower outlet 4 to the right front by the vertical blade | wing moving mechanism 90 which has said connecting rod 91 and angle adjustment mechanism 92 (FIG. 13) and a state in which the vertical blades 9 guide the airflow of conditioned air blown out from the outlet 4 to the left front (see FIG. 14), the posture can be changed. Here, an angle formed by the driving side arm 96 and the driven side arm 97 in a state in which the vertical blade 9 guides the airflow of conditioned air blown from the outlet 4 to the left front (see FIG. 14) is an angle β1. An angle formed by the driving side arm 96 and the driven side arm 97 in a state in which the vertical blade 9 guides the airflow of the conditioned air blown from the outlet 4 forward right (see FIG. 13) is an angle β2. Then, a normal rotation range that is a rotation range of the driven arm 96 with respect to the driving arm 97 corresponding to a predetermined posture change range of the vertical blade 9 is a range from the angle β1 to the angle β2 (where β2> β1). ). The angle formed by the drive side arm 96 and the driven side arm 97 is defined as the rotation center X2 at the end of the drive side arm 96 on the drive shaft 95 side and the rotation center Y2 at the other end of the drive side arm 96. This is the angle between the connecting line XY2 and the line YZ2 connecting the rotation center Y2 and the rotation center Z2 of the support shaft 98.

<Temporary fixing structure of link mechanism of vertical blade moving mechanism>
FIG. 19 is a top view showing the vertical blade 9 and a mechanism for driving the vertical blade 9 (a state where the vertical blade 9 is not connected to the link mechanism 94). FIG. 20 is a perspective view showing a state in which the link mechanism 94 is temporarily fixed. FIG. 21 is a perspective view showing a state where the temporary fixing of the link mechanism 94 is released.

  In the indoor unit 1 having the vertical blade 9 and the vertical blade driving mechanism 90 that drives the vertical blade 9 as described above, the vertical blade 9 is connected to the link mechanism 94 via the connecting rod 91 during the assembly operation of the indoor unit 1. The drive side arm 97 is connected. For this reason, the driven arm 97 may face various directions before the link mechanism 94 is connected to the vertical blade 9. If the driven arm 97 is disposed at a position inconvenient for the assembly operation of the indoor unit 1, the assembly operation of the indoor unit 1 may not be easily performed.

  In particular, here, as shown in FIG. 19, the driven arm 97 enters toward the back side of the main body 2 (upward in the drawing in FIG. 19), and performs the work of connecting the link mechanism 94 to the vertical blade 9. It may be necessary for a person to grope the driven arm 97.

  Therefore, in the indoor unit 1, the link mechanism 94 has a normal rotation range that is a rotation range of the driven arm 97 corresponding to the predetermined posture change range with respect to the driving arm 96 (that is, a range from the angle β1 to the angle β2). A locking portion 104 that locks the driving arm 96 and the driven arm 97 to each other is further provided at a predetermined position other than.

  The locking portion 104 has a convex portion 105 and a concave portion 106 that engages with the convex portion 105. The convex portion 105 is a portion protruding from the vicinity of the end of the driving side arm 96 toward the driven side arm 97. The recess 106 is formed at the end of the driven arm 97. The angle formed between the driving side arm 96 and the driven side arm 97 in a state where the driving side arm 96 and the driven side arm 97 are locked with each other by the locking portion 104 is an angle β3 (here, smaller than the angle β1). In this case, the angle is substantially 0 degree), which is smaller than the normal rotation range.

  Therefore, in this indoor unit 1, the driven arm 97 is temporarily fixed to the driving arm 96 at a predetermined position (here, the angle β3) other than the normal rotation range (range from the angle β1 to the angle β2). It becomes possible to do.

  Thereby, in the state before connecting the link mechanism 94 to the vertical blades 9, the position of the driven arm 97 can be made constant so as not to be inconvenient for the assembly work of the indoor unit 1. Assembling work can be easily performed. In particular, here, when the link mechanism 94 is connected to the vertical blade 9, it is possible to make it difficult for an operator to search for the driven arm 97. For this reason, the operation | work which connects the link mechanism 94 which is one of the assembly operations of the indoor unit 1 to the vertical blade | wing 9 can be performed easily.

  In the indoor unit 1, the driven arm 97 can be temporarily fixed to the driving arm 96 in a state in which the driven arm 97 is folded toward the driving arm 96.

  Thereby, in the state before connecting the link mechanism 94 to the vertical blade | wing 9, it can avoid easily that the link mechanism 94 interferes with another member.

  In addition, after the link mechanism 94 is connected to the vertical blade 9, the engagement between the driving side arm 96 and the driven side arm 97 is released, and thus the driving side arm 96 is assembled during the assembly operation of the indoor unit 1. And forgetting to release the temporary fixing between the arm 97 and the driven arm 97.

  Furthermore, in the indoor unit 1 that has been assembled, the driving side arm 96 and the driven side arm 97 are not locked again during operation and stop, and the posture of the vertical blade 9 can be changed stably. Can do.

(3) Other Embodiments Although the embodiments of the present invention have been described with reference to the drawings, the specific configuration is not limited to these embodiments and can be changed without departing from the scope of the invention. It is.

<A>
In said embodiment, although the latching | locking parts 101 and 104 are comprised by the recessed part and the convex part, it is not limited to this. Further, the position where the locking portions 101 and 104 are provided is not limited to the position of the above embodiment.

<B>
In the above embodiment, the present invention is applied to the link mechanisms 83a and 83b of the horizontal blade 6 and the link mechanism 94 of the vertical blade 9, but either of the link mechanisms 83a and 83b of the horizontal blade 6 or the link mechanism 94 of the vertical blade 9 is used. The present invention may be applied to either of them. Further, the present invention may be applied to an air conditioner of a type different from the above embodiment.

  INDUSTRIAL APPLICABILITY The present invention can be widely applied to an air conditioner in which a wind direction changing blade whose posture is changed by transmitting a driving force of a driving mechanism via a link mechanism is provided at a conditioned air outlet.

1 Indoor unit (air conditioner)
2 Body 4 Air outlet 6 Horizontal blade (wind direction change blade)
9 Vertical blades (wind direction change blades)
20 Casing 82a, 82b, 93 Angle adjustment mechanism drive motor (drive mechanism)
86a, 86b, 96 Driving side arm 87a, 87b, 97 Driven side arm 101, 104 Locking part

JP 2002-295887 A

Claims (4)

A main body (2) having a casing (20) formed with a blow-out opening (4) for blowing out conditioned air;
Wind direction changing blades (6, 9) that are provided at the outlet and whose posture is changed within a predetermined posture changing range;
A drive mechanism (82a, 82b, 93);
A driving side arm (86a, 86b, 96) driven by the driving mechanism, and a driven side arm (87a, 87b, 97) rotatably connected to the driving side arm; A link mechanism (83a, 83b, 94) coupled to the change blade and transmitting the driving force of the drive mechanism to the wind direction change blade;
The link mechanism includes the driving side arm and the driven side arm at a predetermined position other than a normal rotation range that is a rotation range of the driven side arm with respect to the driving side arm corresponding to the predetermined posture change range. And further have locking portions (101, 104) for locking the two to each other,
Air conditioner (1).   The predetermined position is a position where an angle formed by the driving side arm (86a, 86b, 96) and the driven side arm (87a, 87b, 97) forms an angle smaller than the normal rotation range. Item 1. An air conditioner (1) according to item 1. The wind direction changing blade (6) is connected to the driven side arm (87a, 87b), and is a horizontal blade that adjusts the vertical angle of the conditioned air flow blown out from the outlet (4). Yes,
The casing (20) is configured by mounting a front grill (31) on the bottom frame (21) from the front side of the main body (2),
The air outlet is formed in the front grille,
The link mechanism (83a, 83b) is not connected to the horizontal blade, and the driving side arm (86a, 86b) and the driven side arm are locked to each other by the locking portion (101). In a state where it is not, at least a part of the driven side arm protrudes toward the outside of the main body from the air outlet,
The air conditioner (1) according to claim 1 or 2.   The wind direction changing blade (9) is a vertical blade that is connected to the driven side arm (97) and adjusts the angle in the left-right direction of the airflow of conditioned air blown from the outlet (4). The air conditioner (1) according to claim 1 or 2.

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