JP3709777B2 - Air conditioner - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an air conditioner, and more particularly to an air conditioner having a substantially rectangular outlet.
[0002]
[Prior art]
As an example of an air conditioner, a ceiling-suspended indoor unit has been conventionally provided. This ceiling-suspended indoor unit is provided with a main body casing that has a substantially rectangular air outlet in front and can be suspended from the ceiling, a multi-blade fan that sucks and exhausts air, and a heat exchanger. Yes.
[0003]
The main body casing mainly includes a top plate portion, a bottom plate portion disposed to face the top plate portion, and a decorative member made of synthetic resin for covering that covers the front surface, both side surfaces, and the bottom surface. The top plate is suspended from the ceiling by a hanging metal fitting. The decorative member is screwed to the top plate portion and the bottom plate portion.
The blowout port is provided with one or a plurality of wind direction changing blades that swing up and down. The wind direction changing blades are swingably supported by bearings whose ends are screwed to the main body casing, for example. When the longitudinal direction of the outlet is long, the length of the wind direction changing blade is also long. For this reason, the wind direction changing blade is supported not only at both ends but also at an intermediate portion by an intermediate support portion screwed and fixed to the main casing.
[0004]
In such an indoor unit, by rotating the fan, air is introduced into the main body casing from the suction port of the main body casing, heat is exchanged between the air and the refrigerant in the heat exchanger, and the temperature is adjusted. Temperature-controlled air is sent into the room through the outlet. Further, the wind direction can be changed up and down by swinging the wind direction changing blade.
[0005]
In the indoor unit having such a configuration, the wind direction changing blade may be removed for maintenance. When removing the wind direction change blade, conventionally remove the screw that holds either side of the decorative side plate with a screwdriver, and then remove the screw that holds the bearing and shift the wind direction change blade in the horizontal direction. Remove.
[0006]
[Problems to be solved by the invention]
In the conventional configuration, in order to remove the wind direction changing blade, the decorative side plate of the indoor unit must be removed and the bearing must be removed. For this reason, the maintenance space which can use the driver for removing the screw | thread with which the side plate and the bearing were mounted | worn is needed in the side surface of an indoor unit. Moreover, it is necessary to prepare a driver for removing the side plate and the bearing, and to remove two members. For this reason, the installation place of the indoor unit is limited, and the work for attaching and detaching the wind direction changing blade becomes troublesome.
[0007]
An object of the present invention is to facilitate attachment / detachment of a wind direction change blade and reduce the restriction of an installation place in an air conditioner having a rectangular outlet.
[0008]
[Means for Solving the Problems]
The air conditioner according to claim 1 is a device having a substantially rectangular outlet, and includes a wind direction changing blade and an intermediate support portion. A wind direction change blade | wing is provided in the blowing outlet along the longitudinal direction, and has the elasticity supported by the blowing outlet at the substantially both ends of the longitudinal direction and the intermediate part between both ends. The intermediate support part supports the intermediate part of the wind direction changing blade, and one end is fixed to one side of the long sides of the outlet. Moreover, the other end of the intermediate support part is provided with a plate-like receiving part arranged with a slight gap with respect to the other long side of the outlet.
[0009]
Here, while fixing the intermediate support part only at one end, and providing a plate-like receiving part at the other end of the intermediate support part, even if a load acts on the outlet, If there is no slight gap between the receiving part and the other long side, the receiving part can receive a load, so that the device can be restrained from being deformed within the elastic deformation range even when a load is applied during transportation. Further, since there is a gap between the other end of the intermediate support portion and the other long side of the outlet, the intermediate support portion can be easily bent.
[0010]
An air conditioner according to a second aspect of the present invention is the air conditioning apparatus according to the first aspect, wherein both ends and intermediate portions of the wind direction changing blades extend in the direction intersecting the long side, respectively, and the bracket extends along the long side at the tip. The support shafts arranged at the both ends are respectively protruded outward, and the support shafts at the intermediate portion are protruded in one direction of the long side. In this case, the support shafts protrude in different directions at both ends, and protrude in either one of the intermediate portions. For this reason, since at least one support shaft protrudes in a direction different from the other, the wind direction changing blade is unlikely to be detached from the outlet.
[0011]
The air conditioning apparatus according to a third aspect is the apparatus according to the first or second aspect, wherein the gap between the other long side of the outlet and the receiving portion is a gap of 2 mm to 10 mm.
[0012]
The air conditioning apparatus according to a fourth aspect is the apparatus according to any one of the first to third aspects, wherein the receiving portion extends along the long side of the outlet.
According to a fifth aspect of the present invention, in the air conditioner according to any one of the first to fourth aspects, the receiving portion extends along the depth direction of the outlet.
The air conditioner according to a sixth aspect is the apparatus according to any one of the first to fifth aspects, wherein the receiving portion is orthogonal to the intermediate support portion.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
1 and 2 show a ceiling-suspended indoor unit 10 for an air conditioner according to an embodiment of the present invention. FIG. 1 is a sectional side view, and FIG. 2 is a sectional plan view.
This indoor unit 10 has a thin box-shaped main body casing 11. In the main body casing 11, four fans 12, a heat exchanger 13, and a motor 14 for driving the fan 12 are provided.
[0014]
The main body casing 11 has a thin box shape that is long on the left and right as a whole, and the front lower surface side is formed in a rounded surface so that the thickness decreases from the rear side to the front side. A suction port 20 for sucking air is provided on the rear bottom surface of the main body casing 11, and a blower port 21 for blowing heat-exchanged air into the room is provided on the front surface.
[0015]
The main body casing 11 includes a top plate portion 22 that can be suspended from the ceiling, a bottom plate portion 24 that is disposed to face the front side of the top plate portion 22, and a grill that is disposed to face the rear side of the top plate portion 22. And a cover 25. The top plate portion 22 is a metal plate-like member formed by bending a pair of side surfaces and back surface by sheet metal processing. The grill cover 25 is attached to the top plate portion 22 so as to be freely opened and closed, and constitutes a suction port 20. In addition, a fan partition plate 26 is provided between the bottom plate portion 24 of the main body casing 11 and the grill cover 25, and is disposed vertically long to the left and right for mounting the fan 12. The fan partition plate 6 divides the internal space of the main casing 11 into two front and rear spaces.
[0016]
The front surface portion, the side surface portion, and the lower surface portion of the main body casing 11 are covered with a plurality of decorative members 27 made of synthetic resin. A blowing port 21 having a substantially rectangular shape and a long left and right sides is provided at the front portion of the decorative member 27. A heat insulating member 30 made of, for example, styrene foam is attached to the front side of the top plate portion 22 located inside the blowout port 21 over substantially the entire length on the left and right. Further, a drain pan 31 made of, for example, styrene foam is mounted inside the bottom plate portion 24. The blowout port 21 is configured by the front surface portion of the main body casing 11, the decorative member 27, the front portion of the heat insulating member 30, and the front portion of the drain pan 31. The outlet 21 is provided with a first flap (an example of a wind direction changing blade) 35 that swings up and down, and a plurality of second flaps 36 that swing left and right.
[0017]
As shown in FIGS. 3 and 4, the first flap 35 includes an elastic synthetic resin flap body 40, a pair of end members 41 fixed to substantially both ends of the flap body 40, and a flap body. 40 and an intermediate member 42 fixed to the intermediate portion of 40. The flap body 40 is a plate-like member that is long in the left-right direction and slightly convex upward in the front-rear direction. The end member 41 and the intermediate member 42 are members for mounting the flap body 40 on the main body casing 11 so as to be swingable around a first axis X1 that is disposed below the flap body 40 and extends along the longitudinal direction of the outlet 21. is there. The end member 41 and the intermediate member 42 include U-shaped sandwiching portions 41a and 42a for sandwiching the flap body 40, arm portions 41b and 42b extending downward from the sandwiching portions 41a and 42a, and arm portions 41b and 42b. Supporting shafts 41c and 42c projecting in the direction of the first axis X1 are provided at the tip. Here, each of the pair of support shafts 41c protrudes outward, and the protruding direction is opposite. The support shaft 42c protrudes in the same direction as the right support shaft 41c. As described above, since the protruding directions of either of the support shafts 41 c and 42 c are different, the first flap 35 does not fall off from the main body casing 11.
[0018]
The pair of support shafts 41 c is supported by a pair of bearings 45 provided on both inner sides of the main body casing 11. A swing drive mechanism 48 for swinging the first flap 35 about the first axis X1 is provided in the vicinity of the bearing 45 on the right side of FIG. The swing drive mechanism 48 has a link mechanism connected to the end member 41 on the right side of FIG. 4 and a motor, and swings the first flap 35 by the rotation of the motor.
[0019]
The support shaft 42 c is supported by a support bracket (an example of an intermediate support portion) 46 that is suspended and fixed to the main body casing 11. The support bracket 46 is made of a synthetic resin having elasticity, and one end thereof is fixed to the outlet 21 by a mounting bracket 47 embedded in the heat insulating member 30. The support bracket 46 includes a fixed portion 46a on one end that is screwed to the mounting bracket 47, a leg portion 46b that extends from the fixed portion 46a to the other end on the lower side in FIG. 3, and an arm portion 46c that extends forward from the leg portion 46b. And a receiving portion 46d formed at the lower end (the other end side) of the leg portion 46b. The fixing part 46 a is a plate-like part and is fixed to the front part of the heat insulating member 30 that constitutes the outlet 21. The leg part 46b curves backward from the fixed part 46a and extends downward after being curved. The arm portion 46c extends forward from the lower portion of the leg portion 46b, and a cylindrical bearing portion 46e that supports the support shaft 42c is formed at the extended tip. The receiving portion 46 d is a rectangular plate-like portion disposed with a slight gap in the front portion of the drain pan 31 that constitutes the outlet 21. Specifically, the receiving portion 46 d is 2 mm to 10 mm with respect to the front portion of the drain pan 31. It is arranged with a gap. Here, the reason why the gap is provided between the receiving portion 46d and the front portion of the drain pan 31 is to allow the leg portion 46b to bend when the first flap 35 is attached and detached. By providing such a receiving portion 46d, even when a load is applied to the portion of the air outlet 21 when the indoor unit 10 is transported with the upside down, if the air outlet 21 is deformed and there is no gap, the support bracket 46 is provided. Can receive a load. For this reason, even if the blowout port 21 is long open to the left and right, the indoor unit 10 is less likely to be damaged during transportation.
[0020]
The first flap 35 having such a configuration is devised so that it can be easily removed without using a tool during maintenance. That is, when the first flap 35 is removed, as shown in FIG. 4B, the support shaft 46 is bent to the right in FIG. 4 by holding the tips of the leg portions 46b of the support bracket 46, that is, the receiving portions 46d. 42c is removed from the bearing portion 46e. Subsequently, holding the center of the flap body 40 and bending it upward, the support shafts 41 c at both ends are removed from the bearings 45. Thereby, since all the support shafts 41c and 42c are detached, the first flap 35 is detached from the main body casing 11. Here, the support bracket 46 is fixed only at one end, and the first flap 35 and the support bracket 46 are formed of an elastic material. Therefore, the support bracket 46 and the first flap 35 can be bent. In addition, even if it is bent, it is difficult to cause a problem that they are deformed or damaged. For this reason, the first flap 35 can be easily detached without using a tool.
[0021]
The plurality of second flaps 36 are supported by a support fitting (not shown) embedded in the front portion of the drain pan 31 so as to be swingable around the second axis X2 that is different from the first axis X1 behind the first axis X1. ing. The plurality of second flaps 36 are configured to oscillate in conjunction with, for example, three groups.
Each of the four fans 12 is a multi-blade sirocco fan, and is arranged in parallel with the heat exchanger 13 and the outlet 21. Each fan 12 is fixed to a fan partition plate 26 and is connected to and driven by a motor 14. The fan 12 is provided to introduce air into the main body casing 11 from the suction port 20 of the main body casing 11 and blow out the heat-exchanged air from the blowout port 21. The driving motor 14 is supported on the fan partition plate 26 by a fan support 14a.
[0022]
A rectifying plate 50 is provided below the blowing portion 12 a of the fan 12, that is, on the tongue 12 b side of the fan 12. The rectifying plate 50 has a proximal end fixed to the fan partition plate 26, and a distal end extending toward the heat exchanger 13. The rectifying plate 50 is bent to the lower end side of the heat exchanger 13 on the way, and the bent tip extends to a position where it does not contact the heat exchanger 13. A space is formed below the current plate 50. The air blown out from the fan 12 and returned to the space after colliding with the heat exchanger 13 is guided to the space, and the air does not flow backward to the fan 12. For this reason, the noise generated by the fan 12 can be reduced.
[0023]
The heat exchanger 13 has a structure in which the refrigerant circulates inside, and is arranged so that the upper portion is inclined toward the outlet 21. Thus, by arranging the heat exchanger 13 at an inclination, it is possible to suppress the dimension (thickness) in the vertical (up and down) direction while ensuring a wide heat exchange area. The heat exchanger 13 includes a refrigerant pipe 13a through which the refrigerant flows and a large number of fins 13b arranged side by side in the refrigerant flow direction and through which the refrigerant pipe 13a passes. The refrigerant piping 13a is configured by a copper pipe bent into a hairpin shape. The fin 13b is made of a parallelogram aluminum thin plate, and the tip corner portion 13c on the upper side thereof, that is, the tip corner portion 13c having an acute angle disposed on the ceiling side among the tip corner portions along the longitudinal direction of the air outlet 21. Is arranged above the outlet 21. The refrigerant pipe 13a is connected to the outdoor unit through an external pipe (not shown).
[0024]
A cover member 51 is attached to the tip corner portion 13c of the fin 13b. The cover member 51 has a length that can protect the entire length of the heat exchanger 13 in the left-right direction, and has a mountain-shaped cross-sectional shape that is bent along the tip corner 13c. The cover member 51 is, for example, a metal plate-like member formed by extrusion molding of an aluminum material so as to prevent the tip corner portion 13c of the fin 13b from being seen from the outlet 21. Yes. The cover member is attached to the fin 13b by a seal member 52 attached to the upper side of the fin 13b. The seal member 52 has a predetermined thickness and is in the form of a compressible adhesive tape having an adhesive surface on the fin 13b side, and is provided to seal a gap between the heat insulating member 30 and the heat exchanger 13. Yes.
[0025]
By covering the tip corners 13c of the fins 13b with such a cover member 51, the heat exchanger 13 cannot be directly seen even if the heat exchanger 13 is brought close to the outlet 21 in order to reduce the front and rear dimensions. For this reason, the heat exchanger 13 does not stand out even if it is reduced in size and weight. Moreover, if the cover member 51 is attached to the tip corner portion 13c before the heat exchanger 13 is incorporated into the main body casing 11, the tip corner portion 13c of the heat exchanger 13 is protected, and the tip corner portion 13c is unlikely to be damaged during assembly. Become.
[0026]
In the indoor unit 10 configured as described above, when the fan 12 rotates, air is sucked from the suction port 20 and blown into the room from the blowout port 21. Heat is exchanged between the air that has passed through the heat exchanger 13 and the refrigerant in the middle of the air passage. By swinging the first flap 35 up and down by the swing drive mechanism 48, the wind direction can be swung up and down, and the temperature unevenness in the room can be suppressed.
[0027]
When removing the first flap 35 at the time of maintenance, as described above, the support shaft 42c is detached from the bearing portion 46e by holding the tip of the leg portion 46b of the support bracket 46 and bending it to the right in FIG. Subsequently, holding the center of the flap body 40 and bending it upward, the support shafts 41 c at both ends are removed from the bearings 45. Thereby, since all the support shafts 41c and 42c are detached, the first flap 35 is detached from the main body casing 11. On the contrary, when mounting, the support body 41c at both ends is put into the bearing 45 by holding the center of the flap body 40 and bending it upward. Next, the support shaft 42c is inserted into the bearing portion 46e by holding the tip of the leg portion 46b of the support bracket 46 and bending it to the right in FIG. Accordingly, the first flap 35 is attached to the main body casing 11.
[0028]
Here, the support bracket 46 is fixed only at one end, and the first flap 35 and the support bracket 46 are made elastic, so that the support bracket 46 and the first flap 35 can be bent without causing problems. Can do. For this reason, the 1st flap 35 can be attached or detached without using tools, such as a driver, and without disassembling a side part. Therefore, the 1st flap 35 can be attached or detached easily and the restriction | limiting of the attachment place of the indoor unit 10 can be decreased.
[0029]
[Other Embodiments]
(A) In the above-described embodiment, the ceiling-suspended indoor unit has been described as an example. However, the present invention can be applied to all air conditioners having a flap in which an intermediate portion is supported. For example, the present invention can be applied to wall-mounted indoor units, ceiling-embedded indoor units, and integrated air conditioners such as window air conditioners.
[0030]
(B) In the above embodiment, the intermediate member 42 is removed by bending the support bracket 46. However, the intermediate member 42 may be removed by arranging the support bracket so as to be movable in the long side direction of the outlet. Good. In this case, the support bracket may be moved in the long side direction when the intermediate member 42 is removed.
[0031]
【The invention's effect】
In the air conditioner according to claim 1, even if the devices are stacked during transportation or the like and a load is applied to the outlet, the load is applied to the plate-shaped receiving portion when there is no slight gap between the receiving portion and the other long side. Therefore, the device will not be deformed even if a load is applied during transportation. Further, since there is a gap between the other end of the intermediate support portion and the other long side of the outlet, the intermediate support portion can be easily bent.
[0032]
In the air conditioner according to the second aspect, the support shafts protrude in different directions at both ends, and protrude in one of the intermediate portions. For this reason, since at least one support shaft protrudes in a direction different from the other, the wind direction changing blade is unlikely to be detached from the outlet.
[Brief description of the drawings]
FIG. 1 is a sectional side view of a ceiling-suspended indoor unit of an air conditioner according to an embodiment of the present invention.
FIG. 2 is a sectional plan view thereof.
FIG. 3 is an enlarged partial view of the front part of FIG. 1;
FIG. 4 is a front view showing a procedure for attaching and detaching the first flap.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Indoor unit 21 Outlet 35 1st flap 41 End member 41c Support shaft 42 Intermediate member 42c Support shaft 46 Support bracket 46d Receiving part

Claims (6)

An air conditioner (10) having a substantially rectangular outlet (21),
A wind direction change blade (12) that is provided along the longitudinal direction at the blowout port (21) and has elasticity and is supported by the blowout port (21) at substantially both ends in the longitudinal direction and an intermediate portion between the both ends. 35)
An intermediate support portion (46) that supports an intermediate portion of the wind direction changing blade (35) and has one end fixed to one side of the long sides of the blowout port (21);
With
The other end of the intermediate support part (46) is provided with a plate-like receiving part (46d) arranged with a slight gap with respect to the other long side of the outlet (21).
Air conditioner (10). Brackets (41b) and (42b) extending in the direction intersecting with the long side are provided at both ends and an intermediate portion of the wind direction changing blade (35), and the long ends are attached to the ends of the brackets (41b) and (42b). Support shafts (41c), 42c) arranged along the sides, the support shafts (41c) at both ends project outward, and the support shafts (42c) at the intermediate portion are the long sides. Projecting in one direction,
The air conditioner (10) according to claim 1. The gap is a gap of 2 mm to 10 mm,
The air conditioner (10) according to claim 1 or 2.   The receiving portion (46d) extends along the long side of the outlet (21).
The air conditioning apparatus according to any one of claims 1 to 3.   The receiving portion (46d) extends along the depth direction of the outlet (21).
The air conditioning apparatus according to any one of claims 1 to 4.   The receiving portion (46d) is orthogonal to the intermediate support portion (46).
The air conditioning apparatus according to any one of claims 1 to 5.

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