JP2000009329A - Air conditioner buried in ceiling - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ceiling buried air conditioner in which it corresponds to a contact test of overseas article specification where the number of parts is reduced, and maintenance, etc., are facilitated. SOLUTION: The present air conditioner includes a casing 4 suspended down into a space located on an upper portion of a ceiling plate with a decorative panel facing it and fixed to an opening in a ceiling plate with a method requiring a tool such as a screw 3 covering a lower portion opening end, an air fan 5 provided at the center of the casing 4, a heat exchanger 6 provided around the air fan 5, a dew reception pan 8 fixed to a lower end of the casing 4 with a suction hole 7 to the air fan 5 for receiving condensation of the heat exchanger 6, and a finger guard 9 provided at the suction hole 7 such that a hand and a finger are prevented from making contact with the air fan 5. Herein, one end of the fan guard 9 and one end of the dew reception pan 8 are integrally formed through a a thin hinge section, and a stopper section is provided at the other end of the fan guard 9 for engaging with the dew reception pan 8.

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, and more particularly, to a configuration of a fan guard.

[0002]

2. Description of the Related Art A conventional ceiling-mounted air conditioner is designed to support a tactile test according to overseas product standards such as Europe and the United States, as disclosed in Japanese Utility Model Publication No. Sho 63-82123. The guard was integrally formed with the bell mouth always closed.

[0003]

However, in the present configuration, when the blower fan or the like is maintained, it is necessary to remove a screw fixing the bell mouth to the exposure tray.
There is a problem that it takes extra time and the cost increases. In the present invention, in view of the above problems, it is an object of the present invention to provide a ceiling-mounted air conditioner capable of supporting a tactile test of an overseas product standard with a small increase in the number of parts and easy maintenance. .

[0004]

In order to solve the above-mentioned problems, the present invention is directed to a decorative panel fixed to an opening of a ceiling plate by a method requiring a tool such as a screw for covering a lower opening end. A housing suspended in the space above the ceiling plate, a blower fan provided in the center of the housing, a heat exchanger provided around the blower fan, and affixed to a lower end of the housing. A ceiling-embedded air conditioner comprising a dew tray for receiving dew condensation of the heat exchanger having an opening for the blower fan and receiving dew from the heat exchanger, and a fan guard provided on the suction port so that hands and fingers do not touch the blower fan. In the machine, one end of the fan guard and one end of the dew tray are integrally formed via a thin hinge portion, and a locking portion for locking the dew tray at the other end of the fan guard is provided. ing.

[0005] The engaging portion is engaged with an engaging hole formed in the dew tray and the engaging hole, and is integrally formed with the fan guard, and a knob detachable from below the fan guard is provided. And a locking claw provided.

[0006] A housing suspended from a space above the ceiling plate with a decorative panel covering the lower opening end facing the opening of the ceiling plate, a blower fan provided at the center of the housing, A heat exchanger provided around the blower fan, a dew tray fixed to the lower end of the housing and receiving the dew of the heat exchanger having an inlet opening to the blower fan, In a ceiling-mounted air conditioner comprising a fan guard provided at the suction port so as not to touch the one end, one end of the fan guard and one end of the dew tray are formed integrally via a thin hinge portion, On the back surface near the other end of the fan guard, a protrusion is provided on one side to be engaged with an opening edge of the suction port,
On the other side, a locking claw having an L-shaped extension extending downward is protruded, and an opening is formed in an outer frame of the fan guard below the L-shaped extension. A rod-shaped tool is inserted into the opening, the tip of the rod-shaped tool is hooked on the L-shaped extension, and the rod-shaped tool is tilted to deflect the locking claw to release the locking. The guard is opened.

[0007] Further, the locking portion is formed as a locking rib protruding from one end of the outer frame of the fan guard in an outer peripheral direction and locked to an opening edge of the suction port.

An opening edge for locking the projection of the locking claw is an edge of an independent locking hole formed in the decorative panel, and is opposite to an edge of the locking hole where the projection is locked. A restricting rib is provided on the back surface side of the edge of the locking claw so that the L-shaped extension of the locking claw abuts when the locking claw is bent.

Further, the outer corner of the bent portion of the L-shaped extending portion abutting on the regulating rib is formed as a curved surface.

[0010] In addition, a taper is provided at the tip of the locking claw on the convex side.

Further, the rod-shaped tool is used as a driver, and the opening is formed in such a size that the tip of the driver can be inserted.

Further, the dew receiving tray, the fan guard, the locking rib and the locking claw are integrally formed of a synthetic resin such as polypropylene which is easily elastically deformed.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described with reference to the embodiments of the present invention shown in FIGS. First, a first embodiment of the present invention shown in FIGS. 1 to 3 will be described. Screw 3 to cover the lower opening end in the opening of the ceiling plate
A housing 4 suspended in a space above the ceiling plate with a decorative panel 2 fixed to a dew receiving tray 8 to be described later, and a blower fan 5 provided at the center of the housing 4; A heat exchanger 6 provided around the blower fan 5 and an elastically deformed polypropylene or the like which is fixed to the lower end of the housing 4 and receives dew condensation of the heat exchanger 6 having an inlet 7 for the blower fan 5 opened. A dew tray 8 made of an easy-to-use synthetic resin, and an enlarged view of a main part of FIG. 3 in which one end of the dew tray 8 is integrally formed with a thin hinge portion 10 and the other end can be manually removed from below. And the decorative panel 2 provided in the suction port 7 is removed by locking with a locking claw 12 provided with a knob 11 locked to an edge of a locking hole 13 which is an opening edge of the exposure tray 8 shown in FIG. A fan provided so that hands and fingers do not touch the blower fan 5. A guard 9, and a suction grille 25 for the decorative panel 2 filter 26 provided openably in so as to cover the suction port 7 provided on the inside.

Next, the operation and effect of the above configuration will be described. When a general user removes the filter 26 for cleaning, the suction grill 25 is opened and then the filter 26 is removed. At this time, the suction port 7 is covered with the fan guard 9, and in order to open the fan guard 9, the decorative panel 2 attached with the screw 3 that cannot be removed without using a tool is removed. Since it is necessary, a hand or a finger does not accidentally touch the blower fan 5, and it is possible to cope with a touch finger test conforming to overseas safety standards. When a service person or the like performs maintenance on the blower fan 5 or the like, after removing the screw 3 and removing the decorative panel 2,
The fan guard 9 can be easily opened by pinching the knob 11 with a finger and bending the locking claw 12 to remove the locking claw 12 from the edge of the locking hole 13, so that maintenance can be easily performed. .

Next, a second embodiment of the present invention shown in FIG. 4 will be described. The first embodiment is different from the first embodiment in the structure for mounting the decorative panel and the structure for locking the fan guard.
The decorative panel 2 is attached to the housing 4 or the dew tray 8 so as to be manually detachable. (Not shown) One end of the fan guard 9 is formed integrally with one end of the dew tray 8 via a thin hinge portion 10 as in the first embodiment, and is integrally formed with the other end of the fan guard 9. The formed locking claw 15 is locked to the edge of the locking hole 13 which is the opening edge of the suction port 7 of the exposure tray 8. As shown in the enlarged sectional view of FIG. 4, the fan guard 9 includes an outer frame 16 and a guard portion 17. A protrusion 18 is provided integrally with the edge of the locking hole 13, and a taper 19 serving as a guide when the locking claw 15 is inserted into the locking hole 13 is provided at the tip of the protrusion 18. And an L-shaped extending portion 2 extending downward on a side of the tip of the locking claw 15 opposite to the convex portion 18.
0 is provided integrally, a curved surface 21 is provided at an outer corner of the L-shaped extension 20, and a rod-shaped tool such as a driver 23 is inserted into the outer frame 16 below the L-shaped extension 20. An opening hole 22 of a possible size is formed. A regulating rib 24 for regulating the engaging claw 15 so as not to be excessively bent is provided on the back surface of the engaging hole 13 opposite to the edge on which the convex portion 18 is engaged.

Next, the operation and effects of the above configuration will be described with reference to FIG. The decorative panel 2
Remove manually. When the fan guard 9 is closed, as shown in FIG. 4A, the edge of the locking hole 13 abuts on the taper 19 and slides, thereby causing the locking claw 1 to slide.
5 is bent, the locking claw 15 is inserted into the locking hole 13,
When the fan guard 9 is closed, the projection 18 is locked to the edge of the locking hole 13 to be fixed. Since the taper 19 serves as a guide and the locking claw 15 bends, the fan guard 9 can be easily closed simply by closing the fan guard 9. The fan guard 9
When opening the opening hole, as shown in FIG.
2, the driver 23 is inserted through the L-shaped extension portion 20, and the driver 23 is inclined, as shown in FIG.
The fan guard 9 can be opened by bending the convex portion 18 off the edge of the locking hole 13 by bending the fan guard 9.
Therefore, even if the decorative panel 2 is removed, the fan guard 9 cannot be opened without a tool, and the fan guard 9 becomes an obstacle so that a finger cannot enter through the suction port 7. The finger does not touch the fan 5, and it is possible to cope with a touch test according to overseas product standards such as Europe and the United States. When the locking claw 15 bends by a certain amount, the L-shaped extending portion 20 is
4, so that the locking claw 15 is not erroneously bent beyond the elastic limit and broken. In addition, since the outer corner of the L-shaped extending portion 20 is the curved surface 21, even when the fan guard 9 is removed while the curved surface 21 is in contact with the regulating rib 24, The curved surface 2
1 smoothly slides on the surface of the regulating rib 24,
It can be removed smoothly.

[0017]

As described above, according to the present invention,
The ceiling-mounted air conditioner is compatible with overseas product standard tactile test, which has a small increase in the number of parts and is easy to maintain.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a ceiling-mounted air conditioner of the present invention.
(A) shows the entire configuration, and (B) is an enlarged view of a portion B of (A).

FIG. 2 is a perspective view of a dew tray and a fan guard of the recessed ceiling type air conditioner according to the present invention.

FIG. 3 is a sectional view of a main part of the first embodiment of the recessed ceiling air conditioner according to the present invention.

FIG. 4 is a cross-sectional view of a main part of a ceiling-embedded air conditioner according to a second embodiment of the present invention, in which (A) shows a state where a fan guard is closed, (B) shows a state where the fan guard is closed, (C)
Indicates that the fan guard is about to open.

[Explanation of symbols]

 2 decorative panel 3 screw 4 housing 5 blower fan 6 heat exchanger 7 suction port 8 exposure tray 9 fan guard 10 thin hinge part 11 knob 12 locking claw 13 locking hole 15 locking claw 18 convex part 19 taper 20 L-shaped Shaped Extension 21 Curved Surface 22 Opening Hole 23 Driver 24 Regulation Rib

Claims (9)

[Claims] 1. A housing suspended in a space above the ceiling plate with a decorative panel fixed by a method requiring a tool such as a screw for covering a lower opening end at an opening of the ceiling plate. A blower fan provided in the center of the housing, a heat exchanger provided around the blower fan, and dew condensation of the heat exchanger fixed to a lower end of the housing and opening a suction port to the blower fan. A receiving pan, and a ceiling-embedded air conditioner comprising a fan guard provided at the suction port so that hands and fingers do not touch the blower fan, wherein one end of the fan guard and one end of the dew receiving pan Characterized by being integrally formed via a thin hinge portion, and a locking portion for locking to the dew tray is provided at the other end of the fan guard. 2. The locking part is locked with a locking hole formed in the dew receiving tray and the locking hole, and is integrally formed with the fan guard, and can be disengaged from below the fan guard. 2. The ceiling-mounted air conditioner according to claim 1, wherein the air conditioner is configured by a locking claw provided with a knob. 3. A housing suspended in a space above the ceiling plate with a decorative panel covering the lower opening end facing the opening of the ceiling plate, and a blower fan provided at the center of the housing. A heat exchanger provided around the blower fan, a dew tray fixed to the lower end of the housing and receiving the dew of the heat exchanger having an inlet opening to the blower fan, In a ceiling-mounted air conditioner comprising a fan guard provided at the suction port so as not to touch the end, one end of the fan guard and one end of the dew tray are integrally formed via a thin hinge portion, On the back surface near the other end of the fan guard, a locking claw provided with a projection on one side for locking to the opening edge of the suction port and an L-shaped extension extending downward on the other side. An opening hole is formed in the outer frame of the fan guard below the L-shaped extending portion; A rod-shaped tool is inserted through the opening hole, the tip of the rod-shaped tool is hooked on the L-shaped extension, and the rod-shaped tool is tilted to deflect the locking claw and release the locking. A ceiling-mounted air conditioner characterized by opening a fan guard. 4. A locking rib protruding from one end of an outer frame of the fan guard in an outer peripheral direction and locking to an opening edge of the suction port. The ceiling-mounted air conditioner described. 5. An opening edge for locking the projection of the locking claw,
As the edge of the independent locking hole formed in the decorative panel, on the back side of the edge opposite to the edge where the convex portion of the locking hole is locked,
The ceiling-embedded air conditioner according to claim 3 or 4, wherein a regulating rib is provided so that the L-shaped extension of the locking claw abuts when the locking claw is bent. Machine. 6. The embedded ceiling air conditioner according to claim 5, wherein an outer corner of a bent portion of the L-shaped extension that abuts on the regulating rib is a curved surface. 7. The ceiling-embedded air conditioner according to claim 3, wherein a taper is provided at a tip of the locking claw on the convex side. 8. The ceiling-embedded type according to claim 3, wherein the rod-shaped tool is a driver, and the opening is formed to have a size through which a tip of the driver can be inserted. Air conditioner. 9. The apparatus according to claim 3, wherein the exposure tray, the fan guard, the locking rib, and the locking claw are integrally formed of a synthetic resin, such as polypropylene, which is easily elastically deformed. Item 7. A ceiling-mounted air conditioner according to Item 8.