JP4504827B2 - Air conditioner indoor unit - Google Patents

Air conditioner indoor unit Download PDF

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JP4504827B2
JP4504827B2 JP2005017128A JP2005017128A JP4504827B2 JP 4504827 B2 JP4504827 B2 JP 4504827B2 JP 2005017128 A JP2005017128 A JP 2005017128A JP 2005017128 A JP2005017128 A JP 2005017128A JP 4504827 B2 JP4504827 B2 JP 4504827B2
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node
drive
indoor unit
panel
follower
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JP2006207858A (en
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哲朗 小澤
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東芝キヤリア株式会社
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Description

  The present invention relates to an indoor unit of an air conditioner including a movable panel that can open and close a front air inlet of an indoor unit body, and more particularly to an improvement in a panel opening / closing drive mechanism that opens and closes a movable panel.

An air conditioner composed of an indoor unit and an outdoor unit is often used. In an indoor unit, a heat exchanger and a blower that configure a refrigeration cycle are arranged in an opposing manner in an indoor unit body that is a casing. A front suction port is provided at the upper front of the indoor unit main body, an upper suction port is provided at the upper surface, and an outlet is provided at the lower front.
The outlet is provided with a louver and can be switched so that it can be blown in an optimum direction in accordance with the switching of the operation mode. For example, cold air is not directly applied to the occupant in the horizontal direction during cooling operation, and warm air is blown out to the occupant's feet so as to generate so-called cold head heat during heating operation.

On the other hand, the front suction port is provided with a front panel provided with a grill for shielding the inside of the main body from the room through the front suction port. Initially, the front panel simply constitutes the front surface of the indoor unit main body, and is, so to speak, fixedly provided. Therefore, it is troublesome to attach and detach the filter interposed between the front suction port and the front panel, and workability is poor.
Therefore, for example, as shown in [Patent Document 1], the front panel is attached to the indoor unit main body so that the filter interposed between the front suction port and the front panel can be easily attached and detached. A type of indoor unit has been used frequently. Furthermore, as shown in [Patent Document 2], the opening / closing body is attached to the front panel through a drive mechanism so that the opening / closing body can be freely opened and closed, and the upper end of the opening / closing body and the front panel are separated from the upper front suction port and the upper suction port, An air conditioner that can suck a larger amount of air has also been proposed.
Utility Model Registration No. 2539585 JP 2000-234760 A

By the way, the front panel described in the above-mentioned [Patent Document 1] is attached to the front surface of the indoor unit main body via a four-bar link opening / closing mechanism, and is in close contact with the front surface of the indoor unit main body when stopped and during operation. When the filter is replaced, the indoor unit body is fully opened. In other words, the front panel is limited to only the fully closed or fully opened positions, and the opening degree cannot be adjusted such as being fixed at an intermediate position.
In [Patent Document 2] described above, the drive mechanism for driving the opening / closing body is a combination of a drive motor and a link mechanism, and the drive motor directly drives the link mechanism. Therefore, the driving torque for driving the front panel via the opening / closing body becomes large, and the enlargement of the driving motor is inevitable, and the link mechanism itself is rugged and requires a large space for mounting. End up.

  The present invention has been made paying attention to the above circumstances, and its purpose is to reduce the driving torque for driving the movable panel on the premise that the front suction port is opened and closed by the movable panel. Therefore, it is intended to provide an indoor unit for an air conditioner that suppresses the increase in the size of the indoor unit main body by reducing the cost with a smaller drive motor and saving the space of the mechanism for opening and closing the movable panel. .

In order to achieve the above object, the present invention accommodates a heat exchanger and a blower constituting a refrigeration cycle device inside an indoor unit body comprising a housing, and includes a front suction port at the upper front and a blower outlet at the lower front. In an indoor unit of an air conditioner in which a movable panel that opens and closes a front suction port via a panel opening / closing drive means is attached to the front of the machine body,
The panel opening / closing drive means has a drive motor attached to the indoor unit main body, and a drive shaft that is rotatably supported over the entire length in the width direction of the front surface of the indoor unit main body. The link mechanism to
The link mechanism includes a fixed node attached to the indoor unit main body, a power transmission member that is provided on the fixed node and is detachably connected to the drive shaft and receives power from the drive shaft, and one end of the fixed node rotates. A drive node that is freely supported and through which power is transmitted from the drive motor via a power transmission member and a drive shaft, and one end portion of the drive node is rotatably supported by a fixed node portion having a predetermined interval. A second follower that is integral with a movable panel that is rotatably supported with a predetermined distance between the other end of the drive follower and the other end of the first follower, Elastic force is applied to the second follower or the first follower in the direction opposite to the direction of its own weight, which is stretched between at least one of the second follower and the first follower and the fixed joint. And an elastic body for biasing.

  According to the present invention, it is possible to reduce the cost by reducing the size of the drive motor and to suppress the increase in the size of the indoor unit main body.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 schematically shows a cross section of an indoor unit constituting an air conditioner.
In the figure, reference numeral 1 denotes an indoor unit main body comprising a housing, which is composed of a front panel 1A that is curved in a side view, and a rear plate portion 1B in which an upper surface portion, a lower surface portion, and left and right side portions are substantially flat. Is done. A top suction port 2 is provided on the upper surface of the rear plate portion 1B, a front suction port 3 is provided on the upper side of the front panel 1A, and a blowout port 4 is opened between the lower portion of the front panel 1A and the lower front portion of the rear plate portion 1B. The

  A grill 5 is fitted into the upper surface suction port 2, and the upper surface suction port 2 is always open. The upper end portion of the front panel 1A is rotatably supported on the front upper end of the rear plate portion 1B via a hinge portion (not shown) here, and the lower end portion can be opened and closed with respect to the rear plate portion 1B. The front suction port 3 provided in the front panel 1A is opened and closed by a movable panel 6 attached to the front panel 1A via a panel opening / closing driving mechanism (panel opening / closing driving means) K described later. The outlet 4 can be opened and closed by two outlet louvers 7A and 7B that are individually controlled to rotate.

In the indoor unit main body 1, a heat exchanger 9 formed in a substantially inverted V shape by the front heat exchanger portion 9A and the rear heat exchanger portion 9B is disposed. The front heat exchanger section 9A is curved substantially parallel to the front panel 1A and the movable panel 6 with a gap. The rear heat exchanger section 9 </ b> B is straight and inclined obliquely and faces the upper surface inlet 2.
An electric dust collector 10 is attached to the front side of the front heat exchanger portion 9A of the heat exchanger 9. The electric dust collector 10 can be operated not only as a dust collecting operation but also as an ozone generator. A filter 11 is interposed between the front heat exchanger portion 9A and the rear heat exchanger portion 9B, and the front suction port 3 and the upper suction port 2. The filter 11 can be easily inserted into and removed from the indoor unit body 1 by opening the front panel 1A together with the movable panel 6.

A blower 12 is disposed between the front and rear heat exchanger portions 9A and 9B of the heat exchanger 9 and facing the outlet 4. The blower 12 has an axial dimension that is substantially the same as the width dimension of the heat exchanger 9, and includes a cross-flow fan disposed facing the heat exchanger 9 and a fan motor that rotationally drives the cross-flow fan. Is done.
The lower end portion of the front heat exchanger portion 9A is placed on the front drain pan 13a, and the lower end portion of the rear heat exchanger portion 9B is placed on the rear drain pan 13b and is drained from the respective heat exchanger portions 9A and 9B. It receives water and can drain to the outside through a drain hose (not shown). Further, the outer surfaces of the side walls of the front and rear drain pans 13a and 13b are provided at positions close to the blower 12, and these constitute a nose n for the fan of the blower 12.

A partition wall member 14 connects the side wall portions of the front and rear drain pans 13a and 13b constituting the nose n and each side portion of the outlet 4. A space surrounded by the partition member 14 serves as a blowout air passage 15 that communicates the nose n and the blowout port 4.
Next, the panel opening / closing drive mechanism K for opening / closing the movable panel 6 will be described in detail.
2 is a front view of the front panel 1A provided with the panel opening / closing drive mechanism K, FIG. 3 is an exploded perspective view of the main part of the panel opening / closing drive mechanism K, and FIG. 4 is a part of the front panel 1A and the main part of the panel opening / closing drive mechanism K. FIG. 5 is a perspective view of a part of the movable panel 6 and the main part of the panel opening / closing drive mechanism K viewed from the back side, FIG. 6A is a side view of the link mechanism body 22, and FIG. 6B is a link mechanism. It is a perspective view of the principal part of the body.

First, the front panel 1A will be described in detail from FIG. 2. The left and right side portions and the upper end portion are left in a frame shape, and the front suction port 3 including a plurality of openings is formed on the upper side. The small opening a on the right side is opened to face an electric component box (not shown). The lower end portion is cut out in a concave shape leaving both left and right side portions, and the blowout port 4 is formed by this portion.
The hinge part b is provided at the left and right upper ends of the front panel 1A, and is rotatable with respect to the rear plate part 1B with this point as a fulcrum. A hooking portion (not shown) is provided at the lower left and right sides, and is freely detachable from the rear plate portion 1B.

For the front panel 1A, the panel opening / closing drive mechanism K includes a drive motor 20, a drive shaft 21 connected to the drive motor 20 via a speed reduction mechanism G, and a plurality of drive motors 20 as shown in FIG. It is comprised from the link mechanism body 22 which combined the link member etc. of this book. The link mechanism 22 is connected to both left and right ends of the drive shaft 21 and is provided as a pair.
The drive motor 20 is attached to an outer surface portion of a gear case (not shown), and the gear case itself is attached and fixed to a predetermined portion of the rear plate portion 1B. In the gear case, a drive gear 23A fitted and fixed to the rotation shaft of the drive motor 20 and a driven gear 23B meshing with the drive gear 23A are housed, and a speed reduction mechanism G is constituted by these. A connecting hole having a polygonal cross section (not shown) is provided along the central axis of the driven gear 23B, and is exposed from the gear case.

  On the other hand, a first bevel gear 24A is fitted and fixed to the drive shaft 21, and a second bevel gear 24B meshes with the first bevel gear 24A. These first and second bevel gears 24A and 24B are accommodated in an auxiliary case S shown only in FIGS. 4 and 5, and the auxiliary case S is attached to the front panel 1A. A protruding portion P that is integrally provided on the side surface of the second bevel gear 26 protrudes from a part of the auxiliary case 27. The protrusion P has a sharp tip and a polygonal cross section, and completely matches the cross sectional shape of the connecting hole provided in the driven gear 23B.

  The projection P provided on the second bevel gear 24B on the drive shaft 21 side is provided on the driven gear 23B on the drive motor 20 side at the normal position where the front panel 1A constitutes the front portion of the indoor unit body 1. It is inserted into the connecting hole and engaged. Therefore, the rotational driving force of the drive motor 20 is decelerated by the speed reduction mechanism G composed of the drive gear 23A and the driven gear 23B, and then the projection P of the driven gear 23B and the connection hole of the second bevel gear 24B. Thus, it is transmitted to the drive shaft 21 integral with the first bevel gear 24A, so that the drive shaft 21 can be rotationally driven.

  In this manner, the drive motor 20 and the drive shaft 21 are configured such that the projection P of the driven gear 23B and the connection hole of the second bevel gear 24B are mechanically connected and separated. When the front panel 1A is opened to the rear plate 1B together with the movable panel 6 such as when the filter 11 is replaced, the protrusion P easily comes out of the coupling hole, and the drive motor 20 and the drive shaft 21 The connection is released. When the front panel 1A is closed again together with the movable panel 6, the projecting portion P is inserted into and engaged with the coupling hole, and the mechanical coupling state between the drive motor 20 and the drive shaft 21 is restored.

The drive shaft 21 is formed in a rectangular cross section over the entire length, and both end portions thereof are engaged with the link mechanism body 22.
As shown in FIGS. 6A and 6B, the link mechanism 22 is connected to a fixed joint 25 attached to the surface of the front panel 1A and the drive shaft 21 provided in the fixed joint 25 so as to be detachable. A power transmission portion 30 having a semicircular gear portion 26a coupled to the power transmission portion 30 and one end portion j. Has a first follower 27 that is rotatably connected to a fixed joint 25 portion having a predetermined distance from the support part d of the drive joint 26, and the other end k of the drive joint 26 and the second joint attached to the back surface of the movable panel 6. A parallel four-joint link mechanism comprising a second follower joint 28 rotatably connected to the other end m of one follower joint 27 is formed.

  The link mechanism body 22 includes an elastic body and a coil spring 29 as a tension spring and a resistance member 40 as a damper mechanism. One end portion c of the coil spring 29 is hooked to a portion in the vicinity of the support portion d that is the end portion of the drive node 26 in the fixed node 25, and the other end portion e is provided integrally with the first driven node 27. It is hooked on the protruding piece part f. It should be noted that there is no problem even if the other end of the coil spring 29 is hooked on the second follower 28 instead of being hooked on the first follower 27. The resistance member 40 is a gear-shaped member that meshes with a dedicated gear (not shown) provided at one end of the drive node 26 together with the semicircular gear portion 26a. Resist the rotation of the drive node 26.

  The link mechanism body 22 will be further described. The fixed joint 25 has a long front view that is long in the vertical direction, and is formed in a substantially U shape in plan view. As shown in FIG. It is attached and fixed to the surface of 1A by an appropriate means. A drive shaft coupling member 31 and an intermittent gear 32 constituting the power transmission unit 30 are rotatably supported between both side portions at the upper end of the fixed node 25.

  The drive shaft connecting member 31 is provided with a rectangular hole g along the axis, and the end of the drive shaft 21 is detachably engaged with the hole g. . Further, the drive shaft connecting member 31 and the intermittent gear 32 are provided with gear portions h and i that are engaged with each other, and the drive shaft connecting member 31 is received by the drive shaft connecting member 31 engaging with the drive shaft 21. The transmitted power can be transmitted to the intermittent gear 32.

The intermittent gear 32 includes a semicircular gear portion along with the gear portion i along the axial direction, and the intermittent gear 32 is engaged with the semicircular gear portion 26a at the end of the drive node 26. For this reason, the intermittent gear 32 and the semicircular gear portion 26a of the drive node 26 are engaged with each other within a range of approximately a half rotation and can transmit power.
The drive node 26 is formed by opposing a pair of plate portions that are bent in a substantially U-shape when viewed from the side, and a plurality of reinforcing bars installed between these plate portions. The drive node 26 is designed to be inserted between both sides of the fixed node 25, and the central shaft portion (that is, the support portion) d of the semicircular gear portion 26 a rotates to both sides of the fixed node 25. It is supported freely.

  The first follower node 27 also has a pair of plate portions bent and formed in a substantially U shape when viewed from the side, and a plurality of reinforcing bars are installed between these plate portions. Are formed in substantially the same length and width. As described above, one end j of the first follower node 27 is rotatably supported by the fixed node 25, and a projecting piece f is integrally provided at a substantially intermediate portion, and one end e of the coil spring 29 is formed. It is hooked.

  The second driven node 28 is formed with a width and a longitudinal dimension that can be inserted into and removed from the fixed node 25 together with the drive node 26 and the first driven node 27, and is formed in a substantially straight shape in a side view. These plate portions face each other, and a plurality of reinforcing bars are installed between these plate portions. The second follower 28 is rotatably supported at the other ends k and m of the drive joint 26 and the first follower 27, and supports the drive joint 26 and the first follower 27. The distance between the portions k and m is set to be the same as the distance between the driving portions 26 and the support portions c and j of the first follower 27 in the fixed node 25.

  As described above, in the link mechanism 22, the fixed node 25 and the second driven node 28 face each other, the drive node 26 and the first driven node 27 face each other, and the drive node 26 in the fixed node 25. And the distance between the support portions c and j of the first driven node 27 and the distance between the drive portions 26 and the support portions k and m of the first driven node 27 are set to be the same. It is configured as a four-bar linkage mechanism. Therefore, when the driving node 26 is urged to rotate, the second driven node 28 moves and displaces in a state parallel to the fixed node 25, and the driving node 26 and the first driven node 27 remain parallel. It will move and be displaced.

  As shown in FIG. 1 again, the indoor unit of an air conditioner configured as described above is provided in the front panel 1A in a state where the movable panel 6 is superimposed on the front panel 1A when stopped. The front suction port 3 is closed. Therefore, no dust enters the interior of the indoor unit body 1 from the front suction port 3. The outlet 4 is also closed by the two outlet louvers 7A and 7B, preventing dust from entering the main body 1 and causing various problems.

7 is a schematic cross-sectional view of the indoor unit in which the movable panel 6 is in a half-opened state, FIG. 8 is a perspective view of the indoor unit in which the movable panel 6 is fully opened, and FIG. 9 is a state in which the movable panel 6 is fully opened. It is a schematic sectional drawing of an indoor unit.
When the operation switch of the remote control is switched on, the opening posture of the movable panel 6 differs depending on the selection of the operation mode.
That is, when the dehumidifying operation mode is selected or when the internal drying operation mode of the indoor unit body 1 is selected, the movable panel 6 is half-opened with respect to the front inlet 3 of the front panel 1A as shown in FIG. It becomes a state.

At this time, the refrigerant evaporates in the heat exchanger 9, and the air volume of the blower 12 is suppressed to be extremely small. The heat exchange air blown out from the blowout port 4 is extremely small, and the rotation angle of the blowout louver 7A on the upper side and the blowout louver 7B on the lower side is slight, so that the heat exchange air is moved from the blowout port 4 to the movable panel. 6 is blown up along the front side and the back side.
Then, the air is sucked into the interior of the indoor unit body 1 from the upper side of the upper surface suction port 2 from the upper end of the movable panel 6 and the upper side of the front surface suction port 3 in a half-open state, and exchanges heat with the heat exchanger 9 again. The heat exchange air circulates in front of the indoor unit main body 1 in a short circuit state without being blown into the room from the blowout port 4.

Therefore, the dehumidifying action is performed in a state where the indoor occupant does not receive cold air, and comfortable air conditioning is obtained. Alternatively, drain water droplets adhering to the heat exchanger 9, the drain pans 13a and 13b, the air passage 15 and the like are quickly evaporated to dry the interior of the indoor unit main body 1, thereby preventing the occurrence of mold.
When the cooling operation mode or the heating operation mode is selected, the movable panel 6 is fully opened as shown in FIGS.
At this time, both the blowout louvers 7A and 7B provided at the blowout port 4 are set to rotate larger than when they are both in the half-open state. Specifically, when the cooling operation mode is selected, the blowout louvers 7A and 7B are almost directed in the horizontal direction so that cold air is not directly applied to the resident. When the heating operation mode is selected, the blowout louvers 7A and 7B are directed almost directly below, and hot air is blown out to the occupant's feet so as to generate so-called head cold foot heat.

  The fully open posture of the movable panel 6 is obtained based on the action of the panel opening / closing drive mechanism K. That is, the drive joint 26 and the first follower joint 27 of the link mechanism body 22 constituting the panel opening / closing drive mechanism K protrude forward as much as possible (front side), and the movable panel 6 itself, the front shown in FIG. The suction port 3 is moved upward from the position where the suction port 3 is completely closed and the half-open position shown in FIG.

  Cooling operation or heating operation is performed, and indoor air is guided into the indoor unit body 1 from the upper surface inlet 2 and the front surface inlet 3. At this time, since the movable panel 6 is separated from the front panel 1A, a larger amount of room air is sucked into the indoor unit main body 1 from the front suction port 3 and the upper surface suction port 2 and led to the heat exchanger 9. . Therefore, a sufficient air volume can be secured, the residence area of the suction air flow into the heat exchanger 9 can be reduced, and the heat exchange efficiency and the air conditioning performance can be improved.

  When the operation switch of the remote control is turned off to end the air conditioning operation, the refrigeration cycle operation is ended, the operation of the blower 12 and the electric dust collector 10 is stopped, and the panel opening / closing drive mechanism K moves the movable panel 6 backward. As shown in FIG. 1 again, the front suction port 3 is closed because it is brought into close contact with the front panel 1A.

Next, the position of the movable panel 6 relative to the front panel 1A and the operation of the panel opening / closing drive mechanism K on the movable panel 6 will be described.
When the operation is stopped, the movable panel 6 is brought into close contact with the front panel 1A to close the front suction port 3. At this time, the drive motor 20 that constitutes the panel opening / closing drive mechanism K is stopped, and the link mechanism 22 has a drive joint 26 and a first follower joint 27 that rotate downward as shown in FIGS. It is inserted into the fixed joint 25 together with the second follower joint 28, and is brought into close contact with each other and integrated.

  When the dehumidifying operation or the in-body drying operation mode is selected, the drive motor 20 is energized to start driving, but stops in a very short time. The driving force of the driving motor 20 is decelerated by the speed reduction mechanism G, and this driving force is transmitted to the driving shaft 21 through the projection P and the connection hole, so that the driving shaft 21 is rotationally driven. Along with the rotation of the drive shaft 21, a driving force is transmitted to the power transmission unit 30 constituting the link mechanism body 22, whereby the drive node 26 rotates.

The first follower node 27 is rotated while being parallel to the drive node 26 and stops at a position slightly separated from the fixed node 25. With these rotations, the second follower node 28 and the movable panel 6 are lifted, and are kept apart from the fixed node 25 and the front panel 1A while being slightly separated. Therefore, the movable panel 6 is in a half-opened state with respect to the front panel 1A.
At this time, the engagement between the intermittent gear 32 and the semicircular gear portion 26a of the drive node 26, the engagement of the gear portions h and i between the drive shaft connecting member 31 and the intermittent gear 32 in the power transmission portion 30, and the drive shaft 21 The relationship between the meshing of the first bevel gear 24A and the second bevel gear 24B and the meshing of the drive gear 23A and the driven gear 23B constituting the speed reduction mechanism G is continued. Thus, the link mechanism 22 is prevented from returning and the position of the movable panel 6 is maintained.

When the cooling operation mode or the heating operation mode is selected, the inclination postures of the louvers 7A and 7B of the outlet 4 are set accordingly. The movable panel 6 moves in a direction away from the front panel 1A directly from a state in which the movable panel 6 is in close contact with the front panel 1A and closes the front suction port 3 or from a half-open state.
That is, the drive motor 20 rotationally drives the drive shaft 21 via the speed reduction mechanism G or the like, so that the power transmission unit 30 rotationally drives the drive node 26. Accordingly, the second follower 28 is lifted while maintaining parallel to the fixed joint 25, and the first follower 27 is rotated while maintaining parallel to the drive joint 26. The drive motor 20 is deenergized while the drive node 26 and the first driven node 27 are in a substantially horizontal position with respect to the fixed node 25 and the second driven node 28.

  At this time, as in the half-open state, the intermittent gear 32 and the semicircular gear portion 26a of the drive node 26, the gear portions h and i of the drive shaft connecting member 31 and the intermittent gear 32, the first and second bevel gears 24A, The meshing relationship between 24B and the speed reduction mechanism G continues, and these act as resistance to prevent the link mechanism body 22 from returning backward and hold the position of the movable panel 6.

  By the way, when the movable panel 6 is opened, the rotation direction of the driving node 26 and the first driven node 27 that receives the driving force of the driving motor 20 is between the fixed node 25 and the first driven node 27. This coincides with the direction in which the elastic force of the coil spring 29 is stretched. On the other hand, the total weight of the movable panel 6 and the second driven node 28 is applied to the drive node 26 and the first driven node 27, and the direction in which these total weights are applied is the direction in which the elastic force of the coil spring 29 acts. Is the opposite direction.

  That is, since the direction in which the total weight of the movable panel 6 and the second driven node 28 is applied is opposite to the direction in which the elastic force of the coil spring 29 acts, the output of the drive motor 20 is the same as that of the movable panel 6 and the second driven node 28. Only the power of the difference between the total weight of the follower node 28 and the elastic force of the coil spring 29 is required, and the drive motor 20 may be small in size with a small drive torque, and the cost can be reduced.

The coil spring 29 used here is selected to satisfy the conditions described below.
That is, the relationship between the strength of the coil spring 29 when the movable panel 6 is opened, the strength of the coil spring 29 when the movable panel 6 is closed, and the torque required to open and close the movable panel 6 is set. There must be.
If the spring force (spring force) of the coil spring 29 is too strong, a large torque is required when the movable panel 6 is closed. If the spring force is too weak, a large torque is required to open the movable panel 6, and a drive motor with a large output is required accordingly.

  Therefore, as shown in FIG. 10, the torque curve with respect to the spring force when the movable panel 6 is opened as indicated by the broken line and the torque curve with respect to the spring force when the movable panel 6 is closed as indicated by the solid line are substantially crossed. The spring force of the coil spring was set. As a result, the difference between the torque required at the time of opening and the torque required at the time of closing can be eliminated, the maximum torque can be lowered, and the drive motor 20 can be further downsized. For example, it has been found that when the weight of the movable panel 6 is 590 g, the spring force of the coil spring 29 may be 8.5 N.

  Further, as described above, during maintenance such as cleaning of the filter 11, the front panel 1 </ b> A is rotated using the hinge portion b as a fulcrum to open the interior of the indoor unit body 1. At this time, the protrusion P on the drive shaft 21 side and the connection hole on the drive motor 20 side are disengaged, and the drive shaft 21 and the link mechanism 22 are in a free state with respect to the drive motor 20. Since the link mechanism 22 includes a coil spring 29 that directly urges the first driven node 27 to rotate upward, the elastic force of the coil spring 29 acts instantaneously as it is, and the first driven node 27 27 and the drive node 26 are flipped up. In some cases, the influence extends to the second follower node 28 and the movable panel 6, which may be damaged.

However, in the above-described embodiment, since the resistance member 40 constituting the damper mechanism is connected to the semicircular gear portion 26a of the drive node 26, even if the elastic force of the coil spring 29 is instantaneously applied, it is sufficiently large. Thus, the sudden rotation of the first follower 27 and the drive node 26 is buffered. For this reason, there is no occurrence of defects, and reliability can be improved.
Since the coil spring 29 is used as the elastic body, the stability of the operation tends to be somewhat impaired, but an inexpensive mechanism can be realized and an adverse effect on cost can be prevented. On the other hand, a constant torque spring may be used. In this case, although it is more expensive than the coil spring 29, a constant torque can be reduced over the entire operation range, and a stable operation can be realized.

Since one end of the coil spring 29 is engaged with the fixed node 25 and the other end is engaged with the first driven node 27, it is not necessary to secure a storage space for the coil spring 29 on the upper part of the link mechanism body 22, The mechanism can be miniaturized.
Note that the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. Various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the above-described embodiments.

The schematic sectional drawing of the indoor unit in the air conditioner based on Embodiment of this invention. The front view of the front panel based on the embodiment. The disassembled perspective view of the principal part of a panel drive mechanism based on the embodiment. The partial perspective view of the panel opening-and-closing drive mechanism attached to the front panel based on the embodiment. The partial perspective view of the panel opening / closing drive mechanism seen from the movable panel back surface side based on the embodiment. The side view and partial perspective view of the link mechanism body which comprise the panel opening / closing drive mechanism based on the embodiment. The schematic sectional drawing of the indoor unit at the time of the half opening of the movable panel based on the embodiment. The perspective view of the indoor unit at the time of the fully open of the movable panel based on the embodiment. The schematic sectional drawing of the indoor unit at the time of the fully open of the movable panel based on the embodiment. The characteristic figure of the spring force and opening-and-closing torque of a coil spring based on the embodiment.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 9 ... Heat exchanger, 12 ... Blower, 3 ... Front suction port, 4 ... Outlet port, 1 ... Indoor unit main body, K ... Panel opening / closing drive mechanism (panel opening / closing drive means), 6 ... Movable panel, 20 ... Drive motor, DESCRIPTION OF SYMBOLS 21 ... Drive shaft, 22 ... Link mechanism body, 30 ... Power transmission member, 25 ... Fixed node, 26 ... Drive node, 27 ... First driven node, 28 ... Second driven node, 29 ... Coil spring (elastic body) ).

Claims (1)

  1. An indoor unit body that houses a heat exchanger and a blower constituting a refrigeration cycle device inside, a front suction port at the upper front, and a blower outlet at the lower front,
    In the indoor unit of an air conditioner, which is attached to the front surface of the indoor unit main body through a panel opening / closing drive means and includes a movable panel that opens and closes the front suction port.
    The panel opening / closing drive means includes:
    A drive motor attached to the indoor unit body;
    A drive shaft connected to the drive motor and rotatably supported over the entire length in the width direction of the front surface of the indoor unit body;
    It consists of a pair of left and right link mechanisms connected to the left and right ends of this drive shaft,
    The link mechanism is
    A fixed joint attached to the indoor unit body,
    A power transmission member provided on the fixed node, detachably coupled to the drive shaft, and receiving power from the drive shaft;
    One end of the fixed node is rotatably supported, and a drive node that transmits power from the drive motor via the power transmission member and the drive shaft;
    A first follower node whose one end is rotatably supported by the fixed node part having a predetermined interval with the drive node;
    A second driven node integral with the movable panel, wherein the other end of the drive node and the other end of the first driven node are rotatably supported at a predetermined interval;
    The second follower or the first follower is stretched between at least one of the second follower and the first follower and the fixed joint in a direction opposite to the direction of the weight of the movable panel. An air conditioner indoor unit comprising: an elastic body that biases an elastic force to a driven node.
JP2005017128A 2005-01-25 2005-01-25 Air conditioner indoor unit Active JP4504827B2 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103047745A (en) * 2011-10-17 2013-04-17 珠海格力电器股份有限公司 Air conditioner with openable panel

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100762275B1 (en) 2006-10-30 2007-10-01 삼성전자주식회사 Air conditioner
KR101444361B1 (en) 2008-11-04 2014-09-24 엘지전자 주식회사 Air conditioner
CN104121628B (en) * 2013-04-27 2017-11-14 珠海格力电器股份有限公司 Air conditioner
CN104515286B (en) * 2013-09-29 2017-12-12 广东美的制冷设备有限公司 Air conditioner
JP6584894B2 (en) * 2015-09-29 2019-10-02 日本電産サンキョー株式会社 Louver device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6217546A (en) * 1985-07-15 1987-01-26 Hitachi Ltd Ventilating fan
JPH10248996A (en) * 1997-03-07 1998-09-22 Daifuku Co Ltd Pin clearing device for bowling machine
JP2000234760A (en) * 1999-02-15 2000-08-29 Fujitsu General Ltd Air conditioner
JP2001507995A (en) * 1997-01-14 2001-06-19 アセア ブラウン ボベリ アクチボラグ Device for relative displacement of two elements

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6217546A (en) * 1985-07-15 1987-01-26 Hitachi Ltd Ventilating fan
JP2001507995A (en) * 1997-01-14 2001-06-19 アセア ブラウン ボベリ アクチボラグ Device for relative displacement of two elements
JPH10248996A (en) * 1997-03-07 1998-09-22 Daifuku Co Ltd Pin clearing device for bowling machine
JP2000234760A (en) * 1999-02-15 2000-08-29 Fujitsu General Ltd Air conditioner

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103047745A (en) * 2011-10-17 2013-04-17 珠海格力电器股份有限公司 Air conditioner with openable panel
CN103047745B (en) * 2011-10-17 2015-11-04 珠海格力电器股份有限公司 Having can the air-conditioner of openable panel

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