JPH06323565A - Ceiling mount type air conditioner - Google Patents

Abstract

PURPOSE:To allow works such as replacement of a filter, etc., to be carried out easily, quickly and safely without using a stepladder, and to prevent dust once absorbed by the filter from scattering again. CONSTITUTION:A filter 6 is hanged and held by a lift 10, and when a remote controller switch 20 is manipulated, the filter 6 is lowered to a position near a floor surface together with a cover 5 of a suction port.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ceiling-mounted air conditioner.

[0002]

2. Description of the Related Art As shown in FIGS. 7 and 8, a ceiling-mounted air conditioner comprises an apparatus body 60 and an indoor exposure panel 61 provided under the apparatus body 60. The main body 60 is hidden behind the ceiling 50, and only the indoor exposure panel 61 is attached so as to project from the ceiling 50 to the indoor side. The indoor exposure panel 61 has an outer frame body 62 having outlets 65 on the four sides of the lower surface, and a lattice shape that forms a suction port 66 fitted inside the outer frame body 62 in a swingable and openable manner. And a cover body 63. A filter 64 is detachably provided on the inner surface side of the cover body 63 so as to correspond to the opening area of the suction port 66. This type of air conditioner has the advantages that it can effectively use the indoor space and can efficiently cool and heat every corner of a large room.

[0003]

In order to inspect, clean or replace the filter 64, it is necessary for an operator to use a stepladder or the like to climb to a height that can reach the indoor exposed panel 61, which is troublesome and difficult. It goes without saying that it is dangerous. Not only that, by attaching and detaching the filter 64 at a high place, dust that has been adsorbed due to work vibration or the like may dissipate, which may deteriorate the indoor environment.
There are also cases where the position where the stepladder stands up interferes with a desk or the like arranged in the room and the desk or the like has to be moved one by one.

The present invention has been made in view of the above circumstances, and enables the inspection, cleaning, and replacement of filters to be performed easily, quickly, and safely without causing any adverse effects on the surroundings. It is an object of the present invention to provide a ceiling mounted air conditioner.

[0005]

In order to achieve the above object, the present invention takes the following technical means. That is, the present invention is a ceiling-mounted air conditioner comprising an indoor exposure panel having an air inlet and an air outlet in the lower part of the main body of the apparatus that is placed on the back of the ceiling. Is provided with a filter for at least a suction port detachably, and the apparatus body is provided with an elevating drive device for elevating or lowering the entire indoor exposure panel or a part including a filter mounting portion. .

In the indoor exposed panel, the cover body can be separated from the outer frame body, and the cover body or the filter itself can be lifted up and down by being hung by a lifting drive device in a horizontal state. Separately from this, in the indoor exposed panel, the cover body is held so as to be swingable and openable with respect to the outer frame body, and a filter that is in a vertical state when the cover body is opened is directly attached by the lifting drive device. Alternatively, it may be indirectly suspended and lifted.

A receiver circuit for a remote control switch may be provided in the lifting drive device.

[0008]

According to the present invention, in the indoor exposed panel, the whole or a part including the mounting portion of the filter is hung by the elevating and lowering drive device. Therefore, by operating the elevating and lowering drive device, The filter can be lowered to a position near the floor of the room where the worker who intends to replace the filter stands, or can be raised thereafter. Therefore, the worker
Eliminates the need to climb a stepladder.

When the cover body is separable from the outer frame body, since the cover body or the filter is hung on the elevating and lowering drive device in a horizontal state, it is possible to operate the elevating and lowering drive device. , The cover body and the filter can move up and down in a horizontal state. When the cover body is held so that it can be opened and closed with respect to the outer frame body, once the cover body and the filter are opened downward from the outer frame body, and when they are in a vertical posture, the cover body and the filter are Since at least one of the filters is suspended by the elevating and lowering drive device, by operating the elevating and lowering drive device, at least the filter is moved up and down in a vertical state.

If the elevator drive device can be operated remotely by a remote control switch, the required elevator drive device can be operated no matter where the worker is in the room.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 show a first embodiment of a ceiling-mounted air conditioner according to the present invention, in which 1 is an apparatus main body and 2 is an indoor exposed panel. In this indoor exposed panel 2,
The cover body 5 is fitted inside the outer frame body 4, and the filter 6 is mounted on the upper surface side of the cover body 5 as in the conventional case (see FIGS. 7 and 8).
Is separable from the outer frame 4, and its four corners are
4 of the lifting drive device 10 provided inside the device body 1 or the like
It is adapted to be suspended by a hanging rope 11 of a book.

As shown in FIG.
The four suspension ropes 11 can be wound up and unwound by separate reels 12. Each reel 1
2 are fixed to both ends of a pair of front and rear reel holding shafts 15. Since the hanging rope 11 is hung so as to be unwound toward the front side of the front reel 12 and toward the rear side of the rear reel 12 (see FIG. 1), the cover body 5 is lowered or raised. To do so, it is necessary to rotate the front and rear reel holding shafts 15 in synchronism with each other and rotate them in opposite directions. Therefore, in this embodiment, the drive shaft 14 connected to one end of each reel holding shaft 15 and the motor 13
Are connected to each other via a bevel gear 16 in which the front and rear directions are different from each other. That is,
When the drive shaft 14 is rotated in the A direction by the motor 13,
The front and rear reel holding shafts 15 rotate in opposite directions in the respective a directions so that the entire suspension rope 11 is unwound, and the cover body 5 at the lower end thereof descends in a horizontal state. When the drive shaft 14 is rotated in the B direction, the front and rear reel holding shafts 15 reversely rotate in the respective b directions to wind up the entire suspension rope 11, and the cover body 5 at the lower end thereof rises in a horizontal state. Come to do. As the hanging rope 11, a flat belt made of resin, metal, leather, or the like, a chain, a wire cable, a rope, or other suitable wire or cord can be used.

The lifting drive device 10 is provided with a receiving circuit (not shown) that can start or stop the motor 13 by remote control by an infrared method or an ultrasonic method. Reference numeral 20 is a remote control switch, and 21 is a receiver thereof. Therefore, when the remote control switch 20 is operated while the cover body 5 is fitted in the outer frame body 4, the cover body 5 is automatically lowered to a predetermined height and stopped. The stop height of the cover body 5 may be set arbitrarily within a range of about 80 to 120 cm from the floor of the room in advance. Of course, the cover body 5 may be lowered until it reaches the indoor floor surface, or the stop height of the cover body 5 may be adjusted as desired each time the remote control switch 20 is operated. is there.
On the other hand, when the remote control switch 20 is operated again from this state, the cover body 5 is automatically raised to the original state of being fitted into the outer frame body 4 and stopped.

As shown in FIG. 3, since the filter 6 is placed on the upper surface side of the cover body 5, the filter body 6 is lightly contacted with the cover body 5 to the extent that displacement of the filter 6 can be prevented. A relatively simple engagement claw 7 and the like are provided. 5a is a suction port. By reducing the weight of the cover body 5 and the filter 6, the wall thickness or diameter of the suspension rope 11 used in the lifting drive device 10 can be made as small as possible, and the diameter of the reel 12 and the size of the motor 13 can be reduced. It is desirable to promote

Incidentally, as shown in FIG.
The filter 6 may be directly suspended and held by each of the hanging ropes 11, and the cover body 5 may be fitted to the lower surface side of the filter 6. Of course, it is necessary that the filter 6 and the hanging rope 11 and the filter 6 and the cover body 5 have a structure in which they can be detached from each other as necessary. In addition, although not shown, it is also possible to adopt a structure in which the indoor exposure panel 2 itself is moved up and down from the device body 1 by the lifting drive device 10.

FIGS. 5 and 6 show a second embodiment of the ceiling-mounted air conditioner according to the present invention, which is different from the first embodiment in that the cover body 5 of the indoor exposed panel 2 is outside. The cover body 5 itself and the filter 6 are vertically movable when opened and closed with respect to the frame body 4 when they are opened.

The cover body 5 is held by a pair of left and right stay metal fittings 30 pivotably supported on the outer frame body 4 and along the longitudinal direction of the stay metal fittings 30. It is slidable. That is, the stay metal fitting 30 is provided with a pivot 32 that is rotatably held with respect to the outer frame body 4 near the upper end in the vertical state and along the longitudinal direction of the metal fitting body. A slide groove 31 is formed. On the other hand, the side wall 25 is bent and formed on the left and right sides of the cover body 5.
On the outer surface of 5, an oval projection 26 is slidably fitted to the slide groove 31 of the stay fitting 30 near the upper end in the vertical state.

On both side walls 25 of the cover body 5, groove rails 27 for holding the filter 6 are formed on the inner surfaces facing each other. These groove rails 27 are arranged so as to be parallel to the direction in which the cover body 5 slides with respect to the stay metal fitting 30, and the lower end in the vertical state is an open end. An engaging member 37 is provided at the center of the upper surface of the peripheral wall of the filter 6 in the vertical state. A hook tool 40 attached to the lower end of the hanging rope 11 of the lifting drive device 10 can be engaged with and disengaged from the engaging tool 37. The lifting drive device 10 has only one suspension line 11. Further, on the left and right side walls of the peripheral wall of the filter 6, a pair of left and right sector gears 36 protruding upward in a vertical state are provided, and
Two pairs of left and right sliding pins 35 (four in total) that fit into the groove rails 27 of the cover body 5 are provided. Of these, the axial center Y of the pair of left and right sliding pins 35 coincides with the center of the engaging member 37. Therefore, from the state shown in FIG. 6, the engaging tool 37 of the filter 6 is engaged with the hook tool 40 of the hanging rope 11 so that the upper sliding pin 35 of the filter 6 fits into the groove rail 27 of the cover body 5. In this state, when the motor 13 is operated in the winding direction of the hanging rope 11, the filter 6 independently rises between the side walls 25 of the cover body 5, and eventually the lower sliding pin 3 is moved.
5 also automatically fits into the groove rail 27, and the upper sliding pin 35 comes into contact with the inner surface of the upper end of the groove rail 27. Then, after this, the cover body 5 together with the filter 6 can be pulled up between the stay metal fittings 30. At this time, the filter 6 is provided on the upper end side of the cover body 5.
The respective sector gears 36 are protruding. Further, at the time when the oblong protrusion 26 of the cover body 5 abuts on the inner surface of the upper end of the slide groove 31 of the stay metal fitting 30, the axis X of the pivot 32 of the stay metal fitting 30 and the upper sliding pin 35 of the filter 6 are removed. The axis Y (= the center of the engaging member 37) is in a state of being in agreement.

The outer frame body 4 of the indoor exposure panel 2 has a sector gear 36 of the filter 6 when the filter 6 and the cover body 5 are raised to their uppermost positions as described above.
A pair of left and right racks 38, which are long in the vertical direction, are attached in such a position that they start to mesh with. for that reason,
After the sector gear 36 and the rack 38 are meshed with each other, if the raising operation of the motor 13 is further continued, the filter 6 becomes
It swings around the axis X of the pivot 32 via the cover body 5 and the stay fitting 30, and eventually fits inside the outer frame body 4 in a horizontal state. Although not shown in the drawings, after the filter 6 is placed in the horizontal state on the outer frame body 4 as described above, it is horizontally projected to the lower surface of the filter 6 or the cover body 5 by being driven by a solenoid or the like. Then, it is preferable to provide a hook tool for engaging and holding those horizontal postures.

In the second embodiment as well, remote operation by the remote control switch (see reference numeral 20 in FIG. 1) is possible, and the operation status and the like are the same as in the first embodiment. However, since the cover body 5 is guided and held by the stay metal fittings 30 and the filter 6 is guided and held by the cover body 5 when the filter 6 is moved up and down, the filter 6 is less susceptible to vibration and the posture is stable. There are advantages.

[0021]

The present invention has the above-mentioned structure, and when the filter is replaced, the filter can be lowered to a position near the floor of the room. The person does not have to bother to climb a stepladder. Therefore, the inspection, cleaning, and replacement of the filter can be performed easily, quickly, and safely. Of course,
There is no need to move a desk or the like in the room to stand a stepladder. Further, since the filter is not touched by hand at a high place, the dust adsorbed on the filter is not scattered again and the indoor environment is not deteriorated.

When the filter is raised and lowered in a horizontal state, since the cover body or the filter is in a state of being suspended by the lifting drive device, after the cover body is fitted to the outer frame body in the indoor exposure panel, , A structure for holding this is unnecessary. Therefore, the structure can be simplified. When the filter is raised and lowered in a vertical state, a cover body or the like which is in a vertical posture in a state of being opened from the outer frame body can be used as a guide for raising and lowering the filter. Therefore, vibration and noise when the filter is moved up and down can be suppressed to a low level.

If the elevator drive device can be remotely operated by a remote control switch, it is not necessary to reciprocate to the switch position one by one, as compared with the case where a switch is provided on the wall surface, etc. The property is improved.

[Brief description of drawings]

FIG. 1 is a side view showing a first embodiment of the present invention.

FIG. 2 is a perspective view showing a main part of the first embodiment.

FIG. 3 is an enlarged sectional view of an essential part showing a mounting state of a filter with respect to the cover body of the first embodiment.

FIG. 4 is an enlarged cross-sectional view of an essential part showing another embodiment in which a filter is directly suspended by a lifting drive device.

FIG. 5 is a partially crushed side view showing a second embodiment of the present invention.

FIG. 6 is a perspective view showing a main part of the second embodiment.

FIG. 7 is a side view showing a conventional ceiling-mounted air conditioner.

FIG. 8 is a bottom view of FIG. 7.

[Explanation of symbols]

 1 Device Main Body 2 Indoor Exposure Panel 4 Outer Frame Body 5 Cover Body 6 Filter 10 Lifting Drive Device 11 Suspension Cable 20 Remote Control Switch

Claims (4)

[Claims] 1. A lower part of a device main body arranged on a ceiling ceiling,
In a ceiling-mounted air conditioner provided with an indoor exposure panel having an air inlet and an air outlet, at least a filter for the inlet is detachably provided inside the indoor exposure panel, and the apparatus main body is provided. The ceiling-mounted air conditioner is characterized in that it is provided with a lifting drive device for lifting or lowering the entire indoor exposure panel or a part including a filter mounting portion. 2. The indoor exposure panel has an outer frame body, and a cover body that can be fitted into and removed from the outer frame body and that includes at least an opening area of a suction port, and an upper surface side of the cover body. The ceiling mount type air conditioner according to claim 1, wherein a mounting portion for the filter is provided, and the lifting drive device is configured to suspend and hold the cover body or the filter in a horizontal state. apparatus. 3. The indoor exposure panel has an outer frame body and a cover body that is swingably opened and closed inside the outer frame body and that includes at least an opening area of a suction port. The filter mounting portion is provided on the surface side that faces upward in the closed state, and the lifting drive device suspends the filter that is in a vertical state when the cover body is open, directly or indirectly. The ceiling-mounted air conditioner according to claim 1, wherein the ceiling-mounted air conditioner is held. 4. The ceiling-mounted air conditioner according to claim 1, wherein the elevation drive device is provided with a reception circuit for a remote control switch.