JP3368707B2 - Air conditioner - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to, for example, an improvement in the mechanism of a ceiling-mounted air conditioner, which improves the serviceability of components, saves labor, and reduces the number of parts. The present invention relates to an air conditioner capable of reducing the cost and cost. 2. Description of the Related Art FIG.
FIG. 11 is a left side view of the conventional indoor unit, FIG. 12 is a detailed view of a part A in FIG. 10, and FIG. FIG.
2 is a left side view of FIG. 10 to 13, 101 is a main body casing of an indoor unit, 102 is a use side heat exchanger, 103 is a drain pan, 104 is a fan for blowing air, 105 is a motor for driving the fan 104 to rotate,
Reference numeral 06 denotes a blower stand for mounting a blower including a fan 104 and a motor 105 in the main body casing 101;
Reference numeral 07 denotes side plates located on both sides of the main body casing 101, reference numeral 108 denotes a cut-and-raised piece formed by cutting and raising two places in the front-rear direction on both side plates 107, respectively, and reference numeral 109 denotes a blower stand 106 to the main body casing 101. A fixing screw 110 is a front panel mounted on the front of the main body casing 101, and 111 is a front panel 11
Reference numeral 112 denotes an air suction portion formed by opening at a lower portion of the front panel 110, and an air suction portion formed by opening at a lower portion of the front panel 110. The end of the cut-and-raised piece 108 is bent upward, and the receiving groove portion 108 is provided between each of the side plates 107 and 107.
a are respectively formed. The fan base 106 has a bent portion 106a inserted into the receiving groove 108a, and is fixed to the front surface of the side plate 107 with screws 109. In such a conventional air conditioner, notches 113 are provided at both ends of a bent portion 106c on the rear surface of the blower stand 106 so that the upper end of the cut-and-raised piece 108 can pass through the bent portion 106c. By sliding the bent portion 106a of 106 on the groove 108a, the blower stand 106 can be easily installed and removed. [0004] Incidentally, there is no problem when the blower stand of the indoor unit is slid sideways like the above-mentioned conventional blower support mechanism in the vertical indoor unit. However, when the blower stand is installed in a posture inclined from the horizontal direction or in a vertical position such as an air conditioner with an indoor unit suspended from the ceiling, the blower stand is mounted by sliding in these directions. Even so, since there was no effective drop prevention mechanism in the direction of gravity, the blower stand might fall as soon as the screws and the like were removed. Therefore, work such as mounting and removing is difficult and involves danger. In particular, in such a ceiling-suspended type air conditioner, the work is often performed from the ceiling opening facing the room, that is, from below the device, and there have been many requests for work improvement. When inspecting the inside of the main body casing, a cover plate, a bottom plate and the like covering the inspection opening are removed.
Furthermore, after taking out the blower stand and the electric heater for air heating, the inside of the casing has to be looked into. In other words, the number of parts handled is large,
There was a problem that a great deal of labor was required for the removal work. In view of the above, the present invention has been made in view of the above-mentioned conventional problems, and is an apparatus of a ceiling-hanging type. It is an object of the present invention to provide an excellent air-conditioning apparatus that is easy to remove and work easily and to inspect the inside. [0007] [0008] [0009] [Means for Solving the Problems] To achieve the above and other objects
Therefore, the air conditioner according to the present invention, an air suction portion formed at the rear end of the casing and sucks air from the room,
It has an air blowing section formed at the front end of the casing and blows air into the room, and is equipped with a use side heat exchanger, a humidifying element for humidifying the air from the use side heat exchanger, a water supply device for supplying water to the humidifying element, and the like. In an air conditioner including a main body casing provided in a ceiling above a ceiling opening facing a room, the air conditioner is internally provided with a predetermined gap along a side plate parallel to a blowing direction constituting the main body casing. Having an internal casing, an internal insertion hole through which the humidifying element can be inserted is drilled in the internal casing on the downstream side in the air blowing direction of the use side heat exchanger, and a fixing plate larger than the inner insertion hole is provided at the end of the humidifying element. A water supply device is provided integrally, and an outer insertion hole through which the fixing plate and the water supply device can be inserted is formed in the main body casing at a position facing the inner insertion hole, and the outer insertion hole is provided. The is provided with a cover plate for clamping between the fixing plate and the water supply device is pressed against the outer end of the locked water supply apparatus to sealably body casing and the inner casing. [0010] [0011] [0012] [action] In this invention, charged in the main casing humidifying element and the water supply device from the outside through holes.
Further, the humidifying element is inserted into the inner casing through the inner insertion hole until the fixing plate contacts the inner casing. In this state, the outer end of the water supply device is pressed with a lid plate to seal the outer insertion hole, and the lid is attached to the main body casing with screws or the like, whereby the water supply device and the humidifying element are firmly incorporated into the main body casing. Conversely, when the screws or the like are loosened to remove the lid plate from the main casing, the humidifying element and the water supply device are smoothly removed from the main casing. Embodiment 1 FIG. 1 is a side external view showing an air conditioner according to a first embodiment of the present invention, FIG. 2 is a schematic side view showing a main part in a main body casing of the first embodiment, and FIG. It is an outline side view showing a stand. In each of the drawings, reference numeral 1 denotes a main body casing of an indoor unit in an air conditioner, which is formed in a rectangular casing from a top plate 2, a right side plate 3, a left side plate 4, a bottom plate 5, a front plate 6, and a back plate 7. I have. An air suction portion 9 for sucking air from the room is formed at a lower rear end of the main casing 1. Main body casing 1
At the front end of the air blower 10 for blowing air into the room.
A duct flange 8 for connecting a duct (not shown) is provided in a state where the air outlet 10 is covered. The main body casing 1 is disposed in a ceiling above a ceiling opening (not shown) facing the room. The indoor unit includes a refrigerant cycle element such as an accumulator, a compressor, a four-way switching valve, and an outdoor heat exchanger. It is connected to a general-purpose outdoor unit (all devices are not shown) that is stored and arranged outside the room. Further, reference numeral 13 denotes the fan casing 11 and the fan 1
4 is a blower comprising a motor 12; 15 is a plate-shaped blower stand which is disposed and fixed in the main casing 1 at an angle from the horizontal direction while supporting the blower 13; 18 is a side plate 3 constituting the main casing 1; A first cut-and-raised portion 16 formed by cutting and raising inward at the upper part of the blower 4
5 is provided on the tip of the first cut-and-raised portion 18 and is engaged with the first cut-and-raised portion 18 so as to be freely detachable.
A second cut-and-raised portion, which is provided below the side plates 3 and 4 on the downstream side in the air blowing direction and formed by being cut and raised inward, 1
Reference numeral 7 denotes a screwed portion provided at the end of the blower stand 15 and screwed to the second cut-and-raised portion 21 with a screw 22. 19 and 20 are formed by cutting and raising inwardly on the upper portions of the side plates 3 and 4. A cut-and-raised portion for locking the blower table 15 swinging around the cut-and-raised portion 18 at a predetermined position, 25 is a cover plate for mounting a humidifier (see Example 3 described later), and 26 is a blower table 15 is a cover plate for inspection, 52 is a use side heat exchanger disposed in front of the blower stand 15 in the main body casing 1, and 53 is a drain pan for receiving drain water from the use side heat exchanger 52 during cooling operation. is there. In the air conditioner according to the first embodiment, when the blower stand 15 is inserted into the main body casing 1 through the opening of the air suction portion 9, first, the blower stand 15 formed on the side plates 3, 4 is formed. The locking portion 16 is locked to the cut-and-raised portion 18, whereby the blower stand 15 is suspended. Therefore, even if the air conditioner is a ceiling-hanging type air conditioner in which an opening for assembling and inspecting parts is provided on the lower surface of the main body casing 1, the blower stand 15 can be reliably prevented from dropping during installation. Next, the suspended blower stand 15 is cut and raised around the first cut and raised portion 18.
In order to oscillate (counterclockwise in FIG. 2) until it hits and is fixed, the screwing portion 17 of the blower stand 15 is screwed to the second cut-and-raised portion 21 of the side plates 3 and 4 with a screw or the like. You. As a result, the blower stand 15 is securely fixed in a predetermined inclined direction. Therefore, the blower stand 1
5 is inclined from the horizontal direction, the blower stand 1
5 can reliably prevent the blower stand 15 from dropping because the locking portion 16 at the tip thereof is securely suspended by the first cut-and-raised portion 18 formed on the upper side of the side plates 3 and 4. Also, the side plate 3,
By simply screwing the screwing portion 17 to the second cut-and-raised portion 21 of FIG. 4 with the screw 22, the blower stand 15 can be easily fixed in a state inclined from the horizontal direction. Therefore, safety can be improved by preventing the blower stand 15 from dropping, and the number of parts can be reduced. In the first embodiment described above, the first cut-and-raised portion 18 is provided on the side plates 3 and 4 of the main body casing 1, but the first cut-and-raised portion 1 is provided on the top plate 2.
8 is formed, and the blower stand 1
5 so as to suspend the locking portion 15 on the top plate 2,
It is also possible to provide the fan stand 15 with a fall prevention function. Embodiment 2 FIG. FIG. 4 is an external view of a second embodiment of the air-conditioning apparatus according to the present invention, as viewed obliquely from the lower front, and FIG.
FIG. 6 is an external view of the air conditioner of the second embodiment with the air filter removed, viewed obliquely from the lower rear, and FIG. 6 is an external view showing a closing plate and an electric heater provided in the air conditioner of the second embodiment. In each drawing, the same components as those of the air conditioner of the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted. Here, reference numeral 1a denotes a main body casing, which is different from the main body casing 1 according to the first embodiment in that a bottom plate 5a having a dimension shorter in front and rear than the bottom plate 5 is employed. 9a is a lower surface suction opening formed between the back plate 7 and the bottom plate 5a of the main body casing 1a, and 30 covers the lower surface suction opening 9a at a position where the inside of the main body casing 1a ahead of the blower stand 15 can be visually recognized. The closing plate 31 is detachably fixed to the rear end of the bottom plate 5a in the closed state, and is sandwiched between the lower end of the back plate 7 of the main casing 1a and the rear end of the closing plate 30 to be detachably held. An air filter 32 is an electric heater fixed on the upper surface of the closing plate 30 with screws or the like to heat the air from the air filter 31, and a connection terminal 33 is electrically connected to the electric heater 32 via a cord or the like. In this case, the blocking plate 30 is also screwed to the blower stand 15 and the side plates 3 and 4. In the air conditioner according to the second embodiment, the closing plate 30 is fixed to the rear end of the bottom plate 5a with a screw or the like while the air filter 31 is sandwiched between the back plate 7 and the closing plate 30. The air filter 31 is securely held by the air suction portion 9 of the lower surface suction opening 9a. Conversely, when the closing plate 30 is removed from the rear end of the bottom plate 5a, the removal operation removes the air filter 31 and the electric heater 32.
Are taken out, and a lower surface opening that can be inspected inside is necessarily secured. This makes it possible to easily inspect the inside (front portion) of the inside of the main body casing 1 (or 1a) without removing the blower stand 15. Therefore, the air filter 31 can be easily held between the back plate 7 and the closing plate 30 only by fixing the closing plate 30 to the rear end of the bottom plate 5a with screws or the like. Meanwhile, the closing plate 3
By simply removing 0 from the rear end of the bottom plate 7, the air filter 31 is removed, the electric heater 32 is taken out, and the internal inspection opening for checking the LEV of the use side heat exchanger 52, the sensor, and the like is secured. Function can be used at the same time. That is, the closing plate 30 can also serve as a mounting bracket for the air filter 31, a support bracket for the electric heater 32, and an inspection opening lid member. Thus, the number of parts can be reduced. Embodiment 3 FIG. 7 is an exploded view showing a humidifying device provided in a third embodiment of the air conditioner according to the present invention, FIG. 8 is an explanatory diagram showing a mode in which the humidifying device of the third embodiment is assembled to a main body casing, and FIG. It is a principal part front sectional view which shows the aspect which attached the humidifying device of 3 to the main body casing. In each drawing, the same components as those of the air conditioners of the first and second embodiments are denoted by the same reference numerals, and the detailed description thereof will be omitted. Here, 41 is a permeable membrane type humidifying element for humidifying the air from the use side heat exchanger 52, 42 is a water supply device for supplying water to the humidification element 41, and 45 is connected to a water supply device 42 via a water supply tube 44 to supply water. 49 is a water-stop device that switches between water passing and stopping water, and 49 is a predetermined gap (space that can accommodate the water supply device 42) along the side plate 3 that is parallel to the air blowing direction and that constitutes the main body casing 1 (or 1a). The inner casing 50 is provided at a position downstream of the use-side heat exchanger 52 in the blowing direction.
, An inner insertion hole formed to have an opening dimension through which the humidifying element 41 can be inserted, 43 is a fixing plate formed to have a size larger than the opening of the inner insertion hole 50, and 48 is a main body at a position facing the inner insertion hole 50. An outer insertion hole formed in the casing 1 (or 1a) to have an opening size through which the fixing plate 43 and the water supply device 42 can be inserted, and 25 is engaged with the main body casing 1 (or 1a) so as to seal the outer insertion hole 48. And a lid plate 51 for pressing the outer end of the water supply device 42 to clamp the fixing plate 43 and the water supply device 42 with the inner casing 49.
5 is a heat insulating material attached to the inner surface. The humidifying element 41 is screwed to the fixing plate 43. Guide plates 46 and 47 for guiding and supporting the humidifying element 41 are screwed to the inner casing 49 of the use side heat exchanger 7 on the secondary air path side. Further, the humidifying device 40 is constituted by the water stopping device 45, the water supply tube 44, the water supplying device 42, the fixing plate 43, and the humidifying element 41. The water supply device 40 is integrally provided at the end of the humidifying element 41 via a fixing plate 43. Therefore, in this air conditioner, the humidifying element 41 and the water supply device 42 are inserted into the main body casing 1 (or 1a) through the outer insertion hole 48. Further, the humidifying element 41 is moved from the inner insertion hole 50 to the guide plates 46 and 47 until the fixing plate 43 contacts the inner casing 49.
Is inserted into the inner casing 49 along the line. In this state, the outer end of the water supply device 42 is pressed with the cover plate 25 and the outer insertion hole 48 is closed, and the cover plate 25 is attached to the main casing 1 (or 1a) with screws or the like,
The water supply device 42 and the humidifying element 41 are firmly incorporated in the main casing 1 (or 1a). Conversely, loosen the screws and the like and attach the lid plate 25 to the main casing 1 (or 1).
The humidifying element 41 and the water supply device 42 can be smoothly removed simply by removing the humidifying element 41 from the a). Therefore, in the air conditioner according to the third embodiment, the labor for assembling / removing the humidifying element 41 can be saved, and the number of components can be reduced by sharing the components. . The present invention is configured as described above, and has the following effects. Even in the case where the blower stand is inclined in the horizontal direction in the main body casing, the blower stand is suspended at the first cut-and-raised portion formed on the upper part of the side plate or the top plate, The fall of the fan stand can be prevented. Further, when fixing the blower stand by being inclined from the horizontal direction, the blower stand can be easily fixed simply by screwing the screwed portion of the blower stand to the second cut-and-raised portion of the side plate. Therefore, safety can be improved by preventing the blower stand from dropping, and the number of parts can be reduced. Further, the air filter can be easily held between the back plate and the closing plate only by fixing the closing plate to the rear end of the bottom plate with screws or the like. On the other hand, by simply removing the closing plate from the rear end of the bottom plate, various functions such as removal of the air filter, removal of the electric heater, and securing of an opening for internal inspection can be simultaneously performed. That is, the number of parts can be reduced. Further, the water supply device and the humidifying element can be easily incorporated and taken out of the main body casing simply by attaching / detaching the cover plate to / from the main body casing with screws or the like. That is, it is possible to save labor when assembling the humidifying element, and it is also possible to reduce the number of parts by sharing parts.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side external view showing Embodiment 1 of an air conditioner according to the present invention. FIG. 2 is a schematic side view showing a main part in the main body casing of the first embodiment. FIG. 3 is a schematic side view showing the inside of a main body casing and a blower stand according to the first embodiment. FIG. 4 is an external view of the air-conditioning apparatus according to Embodiment 2 of the present invention as viewed obliquely from the lower front. FIG. 5 is an external view of the air-conditioning apparatus according to Embodiment 2 from which an air filter is removed, as viewed obliquely from below and below. FIG. 6 is an external view illustrating a closing plate and an electric heater provided in the air-conditioning apparatus according to Embodiment 2. FIG. 7 is an exploded view showing a humidifying device provided in Embodiment 3 of the air conditioner according to the present invention. FIG. 8 is an explanatory view showing a mode of assembling the humidifying device according to the third embodiment to a main body casing. FIG. 9 is a main part front sectional view showing an aspect in which the humidifying device of Embodiment 3 is assembled to a main body casing. FIG. 10 is a partially cutaway front view showing an indoor unit of a conventional air conditioner. FIG. 11 is a left side view of a conventional indoor unit. FIG. 12 is a detailed view of a portion A in FIG. FIG. 13 is a left side view in FIG. [Description of Signs] 1 main body casing, 1a main body casing, 2 top plate, 3 side plate, 4 side plate, 5 bottom plate, 5a bottom plate, 6
Front plate, 7 back plate, 9 air suction portion, 9a lower surface suction opening, 10 air blowout portion, 13 blower, 15 blower stand, 16 locking portion, 17 screwing portion, 18 first cut-and-raised portion, 21 second Cut-and-raised part, 25 lid plate, 30
Closing plate, 31 air filter, 32 electric heater, 4
1 Humidifying element, 42 water supply device, 43 fixing plate,
48 outer insertion hole, 49 inner casing, 50 inner insertion hole, 52 use side heat exchanger, 53 drain pan.

Continued on the front page (72) Inventor Munehiro Yamanaka 6-5-66 Tehira, Wakayama City Mitsubishi Electric Corporation Wakayama Works (72) Inventor Katsuhiko Hayashida 6-5-66 Teira Wakayama City Mitsubishi Electric Wakayama Corporation (56) References JP-A-2-233915 (JP, A) JP-A-1-100028 (JP, U) JP-A-63-110827 (JP, U) JP-A-62-1117427 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) F24F 1/00 401 F24F 6/00 301 F24F 6/04 F24F 1/00 321

Claims (1)

(57) [Claim 1] An air suction portion formed at a rear end portion of a casing and for sucking air from a room, and an air blowing portion formed at a front end portion of a casing and blowing air into the room. A user-side heat exchanger, a humidifying element for humidifying the air from the user-side heat exchanger, a water supply device for supplying water to the humidifying element, and the like, and are disposed in the ceiling above the ceiling opening facing the room. In an air conditioner including a main body casing, the air conditioner includes an internal casing provided at a predetermined gap along a side plate parallel to a blowing direction constituting the main body casing, and a blowing direction of the use side heat exchanger. An internal insertion hole through which the humidifying element can be inserted is formed in the internal casing on the downstream side, and one end of the humidifying element is inserted through a fixing plate larger than the inner insertion hole at an end of the humidifying element. The water supply device is provided, and an outer insertion hole through which the fixing plate and the water supply device can be inserted is bored in the main body casing at a position facing the inner insertion hole, and the outer insertion hole can be sealed. An air conditioner, comprising: a lid plate that is locked to a main body casing, presses an outer end of the water supply device, and sandwiches the fixing plate and the water supply device with the inner casing.