JPH10160188A - Ceiling-recessed air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily perform the maintenance and inspection such as the cleaning, replacement, etc., of parts in an air conditioner which is used, being buried in the ceiling. SOLUTION: For a ceiling recessed air conditioner 1, bottom plates 3 and 4 of a machine body can be removed from the machine body, and a frame exists within a same plane as a ceiling face, and regulates an opening for maintenance and inspection of the machine body, in a position on the ceiling face corresponding to an area under the machine body, and also, supports ceiling boards 102 and 103 for closing the opening. At least, a filter unit part 20, a fan motor unit 30, and a coil unit part 40 within the machine body are fixed in specified positions within the machine body by means of lock mechanisms capable of being released manually. Releasing this lock will enable each unit to be moved in a sliding manner along a guide sliding mechanism in the vertical direction of the machine body in the installed state.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an embedded air conditioner installed behind a ceiling. More specifically, the present invention relates to an embedded air conditioner capable of performing maintenance and inspection by easily removing main internal components from an airframe fixed on the ceiling.

[0002]

2. Description of the Related Art Conventionally, in an embedded type air conditioner installed above a ceiling, an operator enters the inside of the ceiling or accesses the inside of the body from the inside of the body through an inspection port formed in the ceiling. Maintenance work such as part cleaning and part replacement was performed. In any case, such maintenance work is performed on parts fixed on the back side of the ceiling, so that the efficiency of the work is inferior, and furthermore, the maintenance work corresponding to the side or lower surface of the aircraft body. It is necessary to provide a number of inspection openings at the position on the ceiling surface, and the design of the ceiling surface is poor.

Further, in the case of a major replacement of parts, it may be necessary to lower the unit from behind the ceiling, in which case the ceiling must be disassembled.

Japanese Patent Application Laid-Open No. 8-200727 discloses an air-conditioning panel which solves such a problem.
This air conditioning panel is attached to an opening provided on the ceiling surface corresponding to the air conditioner embedded in the ceiling, and when the panel is fully opened, the interior of the embedded air conditioner is exposed on the ceiling surface. Thus, the maintenance and inspection can be performed by accessing the inside of the body from the indoor side. However, even if such an air-conditioning panel is used, units that require maintenance and inspection such as filters and coils inside the fuselage are usually firmly fixed inside the fuselage by bolts, welding, etc. It is still necessary to carry out maintenance and inspection work on the parts fixed at the. Furthermore, it is necessary to provide a dedicated opening for attaching the air conditioning panel to the ceiling surface, and therefore it is necessary to process the ceiling base material, and once such an opening is formed, There is also a disadvantage that the position cannot be changed.

[0005]

SUMMARY OF THE INVENTION Therefore, a technical problem to be solved by the present invention is to easily perform maintenance and inspection such as cleaning and replacement of parts in an air conditioner embedded and used in the ceiling. Is to provide a configuration that enables

[0006]

SUMMARY OF THE INVENTION The present invention has been made in order to effectively solve the above-mentioned problems, and has been made on a ceiling surface so that the inside of an air conditioner can be accessed from the indoor side. In addition to being able to be exposed, the exposed main unit inside the body is attached to the inside of the body so that the main unit can be manually slid downwardly toward the room side. The term "air conditioner" used in this specification means an air conditioner in a broad sense, and includes not only a central air handling unit but also an individual fan coil unit and the like. It is a concept.

In the air conditioner of the present invention, the fuselage bottom plate can be removed from the fuselage body. The frame of the air conditioner defines a maintenance / inspection opening of the airframe at a position on the ceiling surface corresponding to a lower portion of the airframe that is present on the same plane as the ceiling surface. Support the ceiling board closing the part. At least the filter unit, the fan motor unit, and the coil unit in the body are fixed at predetermined positions in the body by a lock mechanism that can be manually released. When the lock is released, each unit is slidable along the guide sliding mechanism in the vertical direction of the body in the installed state.

In the air conditioner configured as described above, the main unit requiring maintenance and inspection of the airframe can be removed indoors as follows. First, the ceiling surface is accessed from the indoor side, and the ceiling board supported by the frame provided in the air conditioner is slid to the rear side of the ceiling to open the maintenance / inspection opening. Next, the body bottom plate is removed, and the inside of the body is exposed to the indoor side.
In this state, for example, the filter unit can be removed by manually releasing the locked state and sliding the filter unit downward along the guide sliding mechanism toward the indoor side.

Accordingly, the main unit requiring maintenance and inspection inside the air conditioner can be easily and manually removed to the indoor side. Thus, maintenance and inspection work of each unit can be performed indoors, not in the ceiling. That is, maintenance and inspection are not performed on the unit fixed behind the ceiling by entering the ceiling or accessing the ceiling through the inspection port as in the related art. As used herein, "manual"
Instead of using tools or tools such as tools, this means an operation in which an operator directly works on the device only with his / her own hands. That is, since each of the above units is not fixed in the body using a bolt, welding, or the like,
The locked state can be released only by manual operation without using any tool such as a wrench, and can be removed manually only by sliding to the indoor side.

Further, when the unit is removed, the unit can be lowered along the sliding guide mechanism, so that even a relatively heavy unit can be lowered stably in the body of the machine. There is no risk of damaging other mechanisms in the body. In addition, access to the ceiling surface from the indoor side is performed by work on an appropriate scaffold, but since the unit can be lowered stably in this way, work safety can be maintained without instability of feet. It is also excellent in terms of sex.

The air conditioner of the present invention has a very advantageous feature in providing an opening for maintenance and inspection, especially when used in combination with a system ceiling. Here, the “system ceiling” means that a number of frame members are arranged in parallel at predetermined intervals in a plane above the living room where the ceiling surface is to be formed, and a number of ceiling boards are interposed between the frame members. It is a ceiling that is simply placed so that its periphery is hooked. After arranging the frame material of such a system ceiling, the air conditioner is positioned such that the frame frame of the air conditioner is located at a desired position in the same plane as a plane formed by the frame materials. Just by installing the frame, the position of the frame becomes the inspection port. Therefore, a special processing operation for providing the inspection port is not required, and the position of the inspection port can be changed with a considerable degree of freedom when installing the air conditioner.

In the present invention, the bottom plate of the body of the air conditioner is directly constituted by a removable ceiling board.
It is also possible to adopt a configuration in which the interior of the aircraft is exposed to the cabin when the ceiling board is removed. In this case, the process of exposing the inside of the machine to the indoor side is simplified, and the work efficiency is further improved.

In the present invention, as described above, the units which can be slidably attached and detached are not limited to the filter unit, the fan motor unit, and the coil unit, but need to be maintained and inspected, for example, a humidifier. The same configuration can be adopted for other elements such as. Which unit to adopt the configuration for can be appropriately selected as needed.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION A case where an air conditioner of the present invention is used by being buried under the ceiling of a system ceiling will be described in detail with reference to the accompanying drawings. Here, the “system ceiling” means that a number of frame members are arranged in parallel at predetermined intervals in a plane above the living room where the ceiling surface is to be formed, and a number of ceiling boards are interposed between the frame members. It is a ceiling that is simply placed around the periphery.

FIG. 1 is a schematic explanatory view showing an air conditioner 1 according to the present invention installed above a ceiling. FIG. 1 shows a filter unit 20, a fan motor unit 30, and a coil unit 40 arranged in a casing 2 in the air conditioner 1. The inside of the casing 2 can be exposed by removing the bottom plates 3 and 4 constituting the bottom surface. The bottom plates 3 and 4 are fixed to the casing 2 using screws or the like.

The air conditioner 1 is provided with frame frames 51 having substantially the same shape as the bottom surface of the airframe via brackets 90 and mounting rods 50 fixed to the four corners of the bottom of the airframe. The mounting rod 50 and the frame 51 are shown in FIG. Frame border
Reference numeral 51 denotes a frame formed by connecting four frame members 51a to 51d each having an L-shaped cross section in a rectangular shape.
Mounting rods 50 hanging down from the four corners of the bottom of the fuselage are fixed. A frame member 52 having a T-shaped cross section is passed between the frame members 51a and 51b constituting the long side portions of the frame frame assembled into a rectangle, but this is for the purpose of reinforcement. It is not a necessary element. As will be described later, a ceiling board is placed on the frame constituted by these frame members so as to hook the periphery thereof.

Referring back to FIG. 1, the member indicated by 100 in the figure is a frame member constituting the system ceiling. That is, a large number of frame members 100 are arranged at predetermined intervals in the plane of the upper part of the living room where the formation of the ceiling surface is planned using hanging bolts (not shown). On the other hand, the ceiling boards 101 and 104 are placed so as to be hooked on the peripheral edges thereof to form a ceiling surface.

The air conditioner 1 is also fixed using suspension bolts (not shown) or the like. At this time, a frame 51 is provided between two frame members 100 extending in parallel with the system ceiling. The air conditioner 1 is suspended so that the air conditioners are matched. This state is the state shown in FIG. 1, in which the frame 51 is present in the same plane as a plane formed by a large number of frame members on the system ceiling. Then, the ceiling boards 102 and 103 are placed on the frame constituted by the frame members 51a to 51d or 52 so that the peripheral edges thereof are hooked. In this way, it is possible to configure a ceiling surface that looks as if no inspection port is provided when viewed from the room.

Next, a procedure for performing maintenance and inspection of the filter unit 20 and the like for the air conditioner 1 installed as described above will be described. First, climb the scaffolding etc. provided in the room, access the ceiling surface, and install the ceiling board 102 on the ceiling surface.
And 103 are opened. This opening operation can be performed by slightly lifting the ceiling board upward and sliding the ceiling board in any direction parallel to the ceiling surface. When the ceiling surface is opened in this manner, the bottom surface of the aircraft is exposed to the indoor side.
Further, by removing the exposed body bottom plate, the inside of the body can be accessed from the indoor side.

In the air conditioner 1 of the present invention, the units which need to be maintained and inspected, such as the filter unit 20 disposed therein, use bolts, welding, etc. as in the case of the conventional air conditioner. Instead of being fixed, it can be easily and slidably removed to the interior of the room manually without using tools. In other words, unlike the conventional air conditioner, maintenance and maintenance are performed with the internal unit removed to the indoor side instead of being fixed behind the ceiling.
It can be inspected and is very good in workability. Such a mechanism for removing the unit is described below.

FIG. 3 is a detailed perspective view of the filter unit 20 shown schematically in FIG. The filter unit has a rectangular casing and a normal filter mechanism built therein.
a is an elongated L-shaped member 2 constituting a guide sliding mechanism described later;
1 is fixed in a state of extending in the vertical direction by welding or the like. Similarly, rectangular plate members 22 extending along the casing back surface 20b are fixed to the bottom of both side surfaces 20a, and the fastening members 26 are rotated around the pins 27 on each plate member 22. Mounted freely. The function of the fastening lock 26 will be described later. In addition, the bottom surface 20 of the casing
A metal fitting 23 constituting a rounding mechanism described below is fixed to c.

FIG. 4 schematically shows the structure of a fixing frame 60 for fixing the filter unit 20 inside the air conditioner 1. The fixed frame 60 is fixed inside the casing 2 of the air conditioner by an appropriate method, and mainly includes two opposed vertical plates 61, a top plate 62 extending between the vertical plates, and And a bottom plate 64. The vertical plate 61 extends to the right in FIG. 4 beyond the edges of the top plate 62 and the bottom plate 64, and is fixed to this portion so that the rail member 66 extends in the vertical direction. I have. The rail member 66 has two protruding portions 66a and 66b extending in parallel with the longitudinal direction thereof. In the groove formed therebetween, the L-shaped member 21 fixed to the side surface of the filter unit 20 is provided. Accept the protruding end. That is, the L-shaped member 21 and the rail member 66 constitute a guide sliding mechanism that can slide and engage with each other, and the filter unit 20 is configured such that the projecting ends of the L-shaped member 21 fixed to both side surfaces thereof are connected to the rail member. By sliding and inserting into the groove 66, it is possible to assemble between the vertical plates 61 from the lower side to the upper side in FIG.

When the filter unit 20 is slid upward along the guide sliding mechanism as indicated by arrows in FIG. 4, two metal fittings fixed near the edge of the top plate 62 of the fixed frame 60 are formed. 69 contacts the upper surface 20d of the filter unit. That is, the metal fitting 69 functions as a positioning metal fitting that defines the upper end of the fixed position of the filter unit 20. At this time, the plate 22 formed on the bottom of both side surfaces of the filter unit 20 overlaps with the rectangular plate 63 protruding from the vicinity of both sides of the bottom plate 64 of the fixed frame 60. At this time, the filter
By rotating the fastening lock 26 provided on the plate material 22 on the 20 side,
The plate members 22 and 63 are held between the hook portions 26a (see the circle on the lower left side in FIG. 3). As described above, the filter unit 20 can be fixed to the fixed frame 60 so as to be sandwiched from above and below by the metal fitting 69 and the fastening and locking tool 27. That is, the tightening and locking member 26 is attached to the filter unit 20.
Is provided with a function as a lock mechanism for fixing to the fixing frame 60. This lock mechanism can be easily released by manual operation without using any tool.

As can be seen from FIG.
Because the tip is slightly curved downward,
The filter unit 20 is stably held by the elastic force due to the bending. It should be noted that although the plate member 22 indicated by the broken line in FIG. 3 is also provided with the fastening fitting 27, it is not shown in order to avoid complicating the drawing.

The filter unit 20 assembled and fixed to the fixing frame 60 as described above does not fall because it is also supported from below by the fasteners 27, but as a further safety measure, the filter unit 20 A round-off mechanism (that is, a second lock mechanism) for surely preventing the accidental drop is adopted. The round-off mechanism itself is generally known, but will be briefly described with reference to FIG. The round-off mechanism 70 includes a metal fitting 23 fixed to the bottom surface 20c of the filter unit 20, a metal fitting 65 fixed to a bottom side end of the bottom plate 64 of the fixed frame 60, and a metal rod 71 further provided with a lever 72. Composed of

FIG. 5 shows a state in which the rounding-off mechanism 70 prevents the filter unit 20 from dropping by connecting the filter unit 20 and the fixed frame 60. That is, the metal fitting 23 is fixed to the bottom surface 20c of the filter unit 20 on the upper surface 23a, and the metal fitting 65 is fixed on the upper surface 65a.
Is fixed to the back surface side of the bottom plate 64 of the fixed frame 60 at.
Since the metal rod 71 inserted into and engaged with the metal fittings 23 and 65 prohibits the relative movement of the metal fittings in the vertical direction, the filter unit 20 moves relatively downward with respect to the fixed frame 60. Is prevented.

In order to release the engagement of the rounding mechanism 70, first, the lever 72 of the metal rod 71 is rotated upward and forward.
Next, the metal rod 71 is moved to the left in FIG. 5 so that the lever 72 passes through the slit 65b formed in the metal fitting 65.
As a result, the engagement between the metal bar 71 and the metal fitting 23 is released. That is, the round-off mechanism 70 constituting the second lock mechanism can be easily released only by a manual operation without using any tool or the like. By releasing the engagement of the rounding-off mechanism and releasing the engagement between the plate member 22 of the filter unit 20 and the plate member 63 of the fixed frame 60 by the fastening fitting 26, the filter unit 20 can operate the air conditioner 1.
Can be separated by sliding down from

Further, when the filter unit 20 is slid, the unit moves along the above-mentioned guide sliding mechanism, so that even if the unit is relatively heavy, stable operation can be performed without wobbling. Can be.

The method of attaching and detaching the filter unit 20 has been described above.
The same can be applied to 30 and the coil unit 40. That is, in FIG. 1, the filter 20, the fan motor unit 30, and the coil unit 40 can be manually slid downwardly as shown by arrows A, B, and C in the same manner as described above. Can be. Reference numerals 31 and 41 in FIG. 1 denote guide sliding mechanisms of the fan motor unit 30 and the coil unit 40, respectively. Further, other than the illustrated unit, for example, a similar configuration can be adopted for other elements such as a humidifier as needed.

The coil unit 40 is conveniently configured as a unit including a drain pan, but may be configured separately from the coil unit 40. In this case, for example, a mechanism that can be easily attached and detached using a concave portion and a convex portion that can be engaged with each other should be adopted and disposed below the coil unit 40.

The case where the air conditioner of the present invention is applied to a system ceiling has been described above. However, the air conditioner of the present invention is not limited to the system ceiling, and a ceiling structure using a conventional ceiling base material. It is also applicable to In this case, the frame 51 supporting the ceiling board is disposed so as to be aligned with the opening formed in the ceiling base material.

FIG. 6 shows an air conditioner 11 according to a second embodiment of the present invention. This air conditioner 11 differs from the air conditioner of the first embodiment shown in FIG.
Is that the bottom plates 13 and 14 constituting the bottom surface are directly constituted by ceiling boards. That is, in the air conditioner 11, only by removing the bottom plates 13 and 14, the inside of the air conditioner can be accessed, and
Inspection work can be further simplified. The method of removing each element is the same as in the first embodiment. As described above, when the bottom plate of the air conditioner is directly formed of a ceiling board, as shown in FIG. 7, by providing the suction board 15 and the blow-out apparatus 16 on the ceiling board, a ductless system using no duct is used. It is also possible to use an air conditioning system.

In the embodiment shown in FIGS. 6 and 7, the air conditioner is disposed adjacent to the ceiling surface unlike the case of FIG. Is preferred.

In each of the embodiments of the present invention described above, a fastener or a round-off mechanism is employed as a fixing mechanism (lock mechanism) for each unit that slides. Of course, the present invention is not limited to such a device, and any means may be adopted as long as the position of the unit can be locked simply by manual operation without using a tool.

[Brief description of the drawings]

FIG. 1 is a schematic explanatory diagram showing a state in which an air conditioner of the present invention is installed above a ceiling.

FIG. 2 is a perspective view illustrating a frame fixed to the air conditioner of FIG. 1;

FIG. 3 is a perspective view showing the filter unit shown in FIG.

FIG. 4 is a schematic perspective view of a fixing frame for fixing the filter unit of FIG. 3 in an air conditioner.

FIG. 5 is a perspective view showing a round drop mechanism used in the present invention.

FIG. 6 is a schematic explanatory diagram showing another example of the air conditioner of the present invention installed in a space above a ceiling.

FIG. 7 is a modification of the air conditioner shown in FIG. A suction device and a blowing device are provided on a body bottom plate constituting a ceiling board.

[Explanation of symbols]

 1,11 Air conditioner 2,12 Casing 3,4 Bottom plate 13,14 Bottom plate 15 Suction device 16 Blow-out device 20,120 Filter unit 21 L-shaped member 22 Plate material 23 Metal fitting 26 Tightening locking device 27 Pin 30,130 Fan Motor unit 31 Guide sliding mechanism 40, 140 Coil unit 41 Guide sliding mechanism 50 Mounting rod 51 Frame frame 52 Frame material 60 Fixed frame 61 Vertical plate 62 Top plate 63 Plate material 64 Bottom plate 65 Metal fitting 66 Projection 69 Positioning metal fitting 70 Round drop Mechanism 71 Metal bar 72 Lever 90 Bracket 100 System ceiling frame material 101, 102, 103, 104 Ceiling board

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Katsumi Tajino 1-4-5 Minamimori-cho, Kita-ku, Osaka-shi, Osaka Inside Shinko Industry Co., Ltd. (72) Motoaki Kasahara Minamimori-cho, Kita-ku, Osaka, Osaka 1-4-5, Shinko Kogyo Co., Ltd.

Claims (3)

[Claims] 1. An embedded air conditioner installed above a ceiling
(1) A body bottom plate (3, 4) which can be removed from the body.
And a ceiling board (102, 10) that defines a maintenance / inspection opening of the aircraft at a position on the ceiling corresponding to the lower side of the aircraft and that is located on the same plane as the ceiling, and that closes the opening.
And a frame that supports the filter unit (20), the fan motor unit (30), and the coil unit (40). It is fixed to a predetermined position in the fuselage by the mechanism (26, 70), and in the unlocked state, it can be detachably slid in the vertical direction of the fuselage in the installed state along the guide sliding mechanism (21, 66). An air conditioner characterized by being attached. 2. An embedded air conditioner (1) installed above a ceiling.
1), wherein the fuselage bottom plate (13, 14) is constituted by a ceiling board which is detachable from the fuselage and forms a part of the ceiling surface in the attached state, and at least the filter unit (120) in the fuselage. ), Fan motor unit (130), and coil unit (14
(0) is fixed at a predetermined position in the body by a lock mechanism (26, 70) that can be manually released, and in the unlocked state, the guide sliding mechanism (21, 66) moves vertically in the installed state. An air conditioner characterized by being detachably mounted in a sliding manner along the line. 3. The air conditioner according to claim 1, wherein the air conditioner is installed above a ceiling of a system ceiling.