JPH0752593Y2 - Ceiling-mounted detector case - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a case for an in-ceiling type detector arranged on the back side of the ceiling.

[Conventional technology]

In recent years, for reasons such as beautification of wall surfaces and efficient use of wall surfaces, attempts have been made to mount the detectors (temperature detectors, humidity detectors, etc.) that were previously attached to the wall surface on the back side of the ceiling. There is.

Figure 10 shows an example of mounting the detector on the system ceiling.
L-shaped mounting bracket 2 on the back side of the system ceiling 1
Is fixed, and the detector 3 is attached to the mounting bracket 2. That is, the detector 3 is provided with a plurality of ventilation holes (not shown) in the vertical direction of the case body (module body) 3-1 from the air vent 1-1 provided in the system ceiling 1. The desired detection value can be obtained by causing the recirculation flow of the above to act on a sensor (not shown) arranged inside the case body 3-1.

[Problems to be solved by the device]

However, according to the method shown in FIG. 10, since the position of the detector 3 on the mounting bracket 2 is fixed,
It is difficult to adjust to the optimum detection position.

In addition, the detector 3 often receives heat radiation from the lighting fixture 4 or the like installed in the ceiling, which causes an error in the detection accuracy.

[Means for Solving the Problems]

The present invention has been made in order to solve such a problem, and the base end surface is in contact with the outer lower end portions of the side surfaces of the one side and the other side of the module main body which face each other, and the heat radiation to the sensor is prevented. First and second radiation plates that reduce the influence are attached, and a radiation surface that opens at a predetermined angle with respect to the side surfaces on one side and the other side is attached to the first and second radiation plates. The extending portion is formed so as to extend from the partial surface, and a joint portion having a substantially V-shaped cross section that protrudes outward is bent and formed at a joint portion of the radiating surface and the base end portion surface on the radiating surface side. The second radiation plate is also used as an elastic locking member when the module body is detachably arranged in a rail groove installed on the rear surface side of the ceiling.

[Action]

Therefore, according to this invention, the influence of heat radiation from the adjacent other heat source to the sensor is reduced by the first and second radiation plates, and the first and second radiation plates are used as the elastic locking member. The position of the module main body in the rail groove, that is, the position of the sensor can be freely adjusted.

〔Example〕

Hereinafter, a case for a ceiling-mounted detector according to the present invention will be described in detail.

FIG. 2 is an exploded perspective view showing an embodiment of the case for the ceiling-mounted detector. In the figure, 5 is a cover and 6
Is a sensor unit mounting bracket, 7 is a sensor mounting bracket fixed to the sensor unit mounting bracket 6, 8 is a sensor (temperature sensor, humidity sensor, etc.) removably mounted on the sensor mounting bracket 7, and 9 is its Connector top cover with black paint on the inside, 10-1 and
10-2 is a connector, and 11-L and 11-R are radiation plates made of elastic members.

The cover 5 is formed into a substantially U-shaped bent shape, and the bent curved surface 5-
A plurality of ventilation holes 5a are formed in 1 and 5-2. Further, the upper end portion 5-31 of the base surface 5-3 of the cover 5 is bent and extended in a substantially L shape, and a long hole 5-32 is formed in the side portion thereof. Similarly, the sensor mounting bracket 6 also has an upper end 6-31 of the base surface 6-3 bent and extended in a substantially L shape, and a long hole 6-32 is formed in the side thereof. Connector top cover 9
Has a substantially L-shaped cross section, and has connectors 10-1 and 10-2 attached to its base surface 9-1. The sensor mounting bracket 7 is made of a resin member in order to reduce heat transfer, is formed into a substantially "" shape in cross section, and is fixed to the sensor unit mounting bracket 6 with rivets or the like. At least the surface sides 11-La and 11-Ra of the radiation plates 11-L and 11-R are nickel-plated.
At the joint on the radiation surface 11-L3 and 11-R3 side of 1-R3 and the base end surface 11-L1 and 11-R1, the locking part 11-L2 with a cross-section of a substantially dogleg shape
And 11-R2 are bent. 9-11, 9-12 and 6-4 are load line fixing hooks.

FIG. 3 is an external perspective view showing an assembled state of the case for a ceiling-mounted detector. Sensor part mounting bracket 6
Are inscribed in the folding curved surfaces 6-1 and 6-2 and the folding curved surfaces 5-1 and 5-2, and are screwed to the cover 5 with screws 12-1 to 12-4. Also, the connector upper cover 9 has a base surface 9-1.
Inscribe the lower end 9-13 of the above into the upper end 6-31 of the base surface 6-3,
As shown in Fig. 4, using the long hole 6-32, screw 12-5 and
12-6 is screwed to the sensor portion mounting bracket 6.
The radiation plates 11-L and 11-R have their base end surfaces 11-L1 and 11-
R1 is circumscribed on the outer lower ends of the base surfaces 5-3 and 6-3, and is attached to the cover 5 and the sensor portion mounting bracket 6 by rivets or welding. At this time, the radiation surfaces 11-L3 and 11-R3 extended and formed from the base end surfaces 11-L1 and 11-R1 of the radiation plates 11-L and 11-R are the base surfaces 5-3 and 6-3. The bending angle is defined as that which opens at an angle α. In addition, in such a configuration, the module main body including the sensor 8 is configured by a combination of the cover 5, the sensor unit mounting bracket 6, and the connector upper cover 9.

FIG. 1 is a sectional view showing a state in which the in-ceiling-mounted detector case 100 is attached to the system ceiling 1. In the figure, 13 is a double T bar installed on the back side of the system ceiling 1 and has a rail groove 13 that is long in the depth direction in the drawing.
-3 is equipped. That is, a groove width is set to the facing distance W between the inner side surfaces of the T-bar 13-1 and the T-bar 13-2, and a rail groove 13-3 extending in the depth direction is formed with this groove width. Double T bar 13 so that air vent 1-1 faces 3
Is installed on the back side of the system ceiling 1. And
An opening 13-4 is formed on the joint surface between the T-bars 13-1 and 13-2 of the double T-bar 13 so as to face the air vent 1-1. In addition, 14
Is an attached harness connected to the connector 10-1, and 4-1 and 4-2 are lighting fixtures.

And the double T bar installed on this system ceiling 1
The rail-mounted groove 13-3 is used to attach the case 100 for the ceiling-mounted detector to the rail 13. That is, push the module body into the rail groove 13-3 (plug it in).
As a result, the radiation plate 11 attached to the module body is
-L and 11-R are T-bars of their locking parts 11-L2 and 11-R2
Elastically deformed by engagement with the inner surface of 13-1 and 13-2,
The locking force generated thereby holds the module main body in the rail groove 13-3. The detector case 100 installed in the ceiling installed in the rail groove 13-3 is the radiation plate 1
By further elastically deforming 1-L and 11-R toward the module main body side, the T-bars of the locking parts 11-L2 and 11-R2 are
The engagement state with the inner side surfaces of 13-1 and 13-2 can be released, and the upper side can be easily pulled up and removed. Therefore,
Inside the rail groove 13-3, the ceiling-mounted detector case 100 can be freely attached at any position, and therefore the adjustment of the sensor 8 to the optimum detection position is extremely easy. As described above, according to the in-ceiling-mounted detector case 100 according to the present embodiment, the flexibility of the installation location is improved, the number of construction steps is reduced, and the maintainability is also improved.

Further, according to the present embodiment, the influence of the heat radiation from the lighting fixtures 4-1 and 4-2, etc. on the sensor 8 causes the radiation plates 11-L and
It will be greatly reduced by 11-R. At this time, since the radiation plates 11-L and 11-R are nickel-plated, the radiation plates 11-L and 11-R are more effective, and the detection accuracy of the sensor 8 is improved. Further, since the radiation plates 11-L and 11-R also serve as a mounting plate (elastic locking member) for the double T-bar 13, cost reduction can be promoted.

In this embodiment, since the sensor 8 is mounted and fixed on the sensor mounting bracket 7 made of a resin member, the sensor mounting bracket 6 contacting the double T-bar 13 via the radiation plate 11-R is used as a sensor. 8 will be thermally insulated. Further, as shown by the h1 dimension in FIG. 5, a ventilation part is provided between the sensor mounting bracket 7 and the sensor part mounting bracket 6.
Since 7-1 is provided, the air permeability is extremely good, and by combining the good air permeability and the heat insulation point, the detection accuracy of the sensor 8 can be further improved.

Further, according to the present embodiment, the black coating on the inner surface of the cover surface 9-2 of the connector upper cover 9 prevents the ceiling slab from being visible from the air vent 1-1 by being inconspicuously blocked. Further, the cover surface 9-2 protects the sensor 8 against dust. Further, according to the present embodiment, the screw
By loosening 12-1 and 12-2, the sensor 8 can be easily maintained. That is, as shown in FIG. 6, since the mounting holes 5-11 and 5-21 in the cover 5 for the screws 12-1 and 12-2 are notched, the screw 12
By loosening -1 and 12-2, the sensor part mounting bracket 6 can be opened with respect to the cover 5. It is extremely easy to remove the sensor 8 from the sensor mounting bracket 7 with the sensor mounting bracket 6 open, and after performing maintenance (replacement, etc.) of the sensor 8, attach the sensor mounting bracket 6 to the cover 5. Return to the original screwed state.

In the above-mentioned embodiment, the case 100 for the ceiling-mounted detector is described as a single layer structure, but the cover 5
Upper end of 5-31 and upper end of sensor mounting bracket 6
By using the long holes 5-32 and 6-32 formed on the side surface of 6-31, it is possible to easily form a multilayer structure. FIG. 7 is an external perspective view of a ceiling-mounted detector case 200 having a two-layer structure. The first-layer ceiling-mounted detector case 200-1 is shown.
The groove width is defined as the gap between the inner side surfaces of the upper end 5-31 of the cover 5 and the upper end 6-31 of the sensor mounting bracket 6 and the groove width is set to the groove width. The module body of 2 shall be pushed in. As a result, the radiation plates 11-L and 11-R attached to the module body are elastically deformed, and as shown in FIG.
R2 generates a locking force and fits into the long holes 5-32 and 6-32, so that the case 200-2 for the in-ceiling type detector is within the groove width of the case 200-1 for the in-ceiling type detector. Will be retained in. The ceiling-mounted detector case 200-2 stacked on the ceiling-mounted detector case 200-1 is pulled up by further elastically deforming the radiation plates 11-L and 11-R toward the module body. Needless to say, it can be removed by

Fig. 9 shows the case 20 for the detector installed in the ceiling of this two-layer structure.
0 shows the installation state to the system ceiling 1, and the sensor case (temperature sensor, humidity sensor, etc.) is installed in the ceiling-mounted detector case 200-1 of the first layer, and the sensor is installed in the ceiling of the second layer. For example, a sensor 15 having another function is arranged in the shape detector case 200-2.

[Effect of device]

As described above, according to the in-ceiling type detector case according to the present invention, the heat radiation to the sensor is made by contacting the base end faces to the outer lower end portions of the side faces of the one side and the other side of the module body which face each other. The first and second radiation plates for reducing the influence of are attached to the first and second radiation plates, and the radiation surface that opens at a predetermined angle with respect to the side surfaces on one side and the other side is the base. Sectional "K" that extends from the end face and projects outward at the joint between the radiating face and the base end face on the radiating face side.
The character-shaped locking portion is formed in a bent shape, and the first and second radiation plates are also used as elastic locking members when the module main body is detachably arranged in the rail groove installed on the ceiling back surface side. Therefore, the influence of heat radiation from the adjacent other heat source to the sensor is reduced by the first and second radiation plates to improve the detection accuracy, and the position of the module main body in the rail groove, that is, the position of the sensor Adjustments can be made freely, the flexibility of the installation location is improved, the construction man-hours are reduced, and the maintainability is improved.

Further, since the first and second radiation plates also serve as elastic locking members for the rail groove, cost reduction can be promoted.

[Brief description of drawings]

FIG. 1 is a sectional view showing a state in which an embodiment of a detector for installation in a ceiling according to the present invention is attached to a system ceiling,
FIG. 2 is an exploded perspective view of the case for installation in the ceiling, FIG. 3 is an external perspective view showing an assembled state of the case for installation in the ceiling, and FIG. 4 is a case for installation in the ceiling. FIG. 5 is a side sectional view of a main part showing a screwing structure between the sensor part mounting bracket and the connector upper cover, and FIG. 5 is a view between the sensor part mounting bracket and the sensor mounting bracket in this ceiling-mounted detector case. FIG. 6 is a plan view showing the ventilation part, FIG. 6 is a side view for explaining the maintenance method of the temperature sensor in this ceiling-mounted detector case, and FIG. 7 is a one-layer structure shown in FIG. FIG. 8 is an external perspective view of a two-layer in-ceiling-mounted detector case, and FIG. 8 is a main part showing the attachment structure of the first layer and the second layer in this two-layer-in-ceiling mounted detector case. Side section FIG. 9 is a cross-sectional view showing a state in which this two-layer structure in-ceiling-mounted detector case is attached to the system ceiling, and FIG. 10 is a cross-sectional view showing an example of attachment of a conventional detector to the system ceiling. . 1 ... System ceiling, 1-1 ... Air vent, 5 ... Cover, 6 ... Sensor mounting bracket, 8 ... Sensor (temperature sensor, humidity sensor, etc.), 9 ... Connector upper cover, 11-L, 11-R ... Radiant plate, 11-L1, 11-R1 ... Base end surface, 11-L2, 11-R2 ... Locking part,
11-L3, 11-R3 ... Radiating surface, 13 ... Double T bar, 13-3 ... Rail groove.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tamana Tadashi, 4-1, 13 Honmachi, Chuo-ku, Osaka City, Osaka Prefecture Takenaka Corporation, Osaka Main Store (72) Inventor, Teruhito Yabu, Chuo-ku, Osaka City, Osaka Prefecture 4-13 Hommachi Takenaka Corporation Osaka Main Store (72) Inventor Yoshiyuki Tanohata 4-1-1 Hommachi Chuo-ku, Osaka City, Osaka Takenaka Corporation Osaka Main Store

Claims (1)

[Scope of utility model registration request] 1. A module main body having a sensor arranged therein, and a base end surface of the module main body, which is attached to the outer lower end portions of side surfaces of the module main body on the opposite side of the module main body. A first radiation plate and a second radiation plate that reduce the influence of heat radiation on the sensor, and the first radiation plate and the second radiation plate are opened at a predetermined angle with respect to the side surfaces on the one side and the other side. The radiation surface is formed to extend from the base end surface, and a locking portion having a substantially V-shaped cross section that protrudes outward is bent and formed at the joint between the radiation surface and the base end surface on the radiation surface side. The first and second radiation plates also serve as elastic locking members when the module main body is removably arranged in the rail groove installed on the back side of the ceiling. Case.