CN2755428Y

CN2755428Y - Built-in light

Info

Publication number: CN2755428Y
Application number: CN 200520003255
Authority: CN
Inventors: 武良举
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-01-21
Filing date: 2005-01-21
Publication date: 2006-02-01
Anticipated expiration: 2015-01-21

Abstract

The utility model discloses a built-in lamp of which the lamp body is arranged in a fireproof cover which is formed by that a fireproof heat-insulating layer is wrapped in a metal layer or is covered outside the metal layer, the fireproof cover can prevent fire from spreading towards the periphery from the lamp body in the cover body, and the fireproof heat-insulating layer can not cause some inflammable substances around the fireproof cover to fire by that the temperature of the outer surface of the fireproof cover is too high. The cover wall of the fireproof cover is provided with a heat dissipation opening which is provided with an expanded fireproof sheet, heat dissipation holes are arranged at a position of the expanded fireproof sheet corresponding to the heat dissipation opening and / or heat dissipation holes are arranged between the edge of the expanded fireproof sheet and the edge of the heat dissipation opening, so the lamp can normally dissipate heat under the general situation. When in fire, the heat dissipation opening can be automatically closed by the quick expansion of the expanded fireproof sheet, and the fireproof cover makes the lamp body isolated from the outside inflammable substances completely so as to prevent the fire from spreading from the lamp body to the periphery.

Description

A kind of recessed light fixture

Technical field

The utility model relates to a kind of light fixture, especially a kind of recessed light fixture.

Background technology

In the modern Interior finishing, for attractive in appearance and illumination, people are usually at furred ceiling, the bag wall, on the wallboard in place such as family property some recessed light fixtures are installed, fire spreading when preventing that fire from taking place, what the wallboard in above place used all is fire-proof board, the surface of fire-proof board is a fireprotection layer, the intermediate layer but is flammable, necessary again perforate on PLASTIC LAMINATED when recessed light fixture is installed, and existing recessed light fixture does not possess the function that stops fire spreading, so just cause the flare can be by the ignite intermediate layer of PLASTIC LAMINATED of these recessed light fixtures, PLASTIC LAMINATED just play due anti-fire action yet; In addition, often there are a large amount of combustibles in furred ceiling and the bag wall interlayer and the inside of family property, as yoke, clothing etc., and flare these combustibles that in a single day ignite, the intensity of a fire is with rapid spread.

Summary of the invention

In order to overcome the deficiencies in the prior art, the purpose of this utility model provides a kind of recessed light fixture with fire-proof and thermal-insulation function.

The technical scheme that its technical problem that solves the utility model adopts is:

A kind of recessed light fixture, comprise lamp body, lamp body is installed in the flameproof enclosure, fire proof heat-insulation layer constitutes or cover fire proof heat-insulation layer outward constitutes flameproof enclosure by wrapping up in the metal level, on the cover wall of flameproof enclosure thermovent is arranged, expansion type fire prevention sheet is equipped with at the thermovent place, on the expansion type fire prevention sheet, there is louvre the position corresponding with thermovent and/or between expansion type is prevented fires the edge of the edge of sheet and thermovent louvre is arranged.

The beneficial effects of the utility model are: lamp body is installed in the flameproof enclosure, flameproof enclosure is made of metal level and fire proof heat-insulation layer, so flameproof enclosure can prevent that the intensity of a fire from spreading towards periphery from lamp body when fire took place, and fire proof heat-insulation layer can not make that the hull-skin temperature of flameproof enclosure is too high and causes the burning of some combustibles around the flameproof enclosure, in addition, thermovent and expansion type fire prevention sheet is arranged so that light fixture can normally dispel the heat under the general case on the flameproof enclosure, thermovent can seal voluntarily because of the prevent fires rapid expansion of sheet of expansion type when meeting fire, flameproof enclosure is isolated lamp body and extraneous combustibles fully, can prevent that the intensity of a fire from outwards spreading from lamp body.

Description of drawings

Below in conjunction with accompanying drawing the utility model is further specified.

Fig. 1 is the structural representation of first kind of embodiment of the present utility model;

Fig. 2 is the structural representation of second kind of embodiment of the present utility model;

Fig. 3 is the structural representation of the third embodiment of the present utility model;

Fig. 4 is the structural representation of the 4th kind of embodiment of the present utility model;

Fig. 5 is the structural representation of the 5th kind of embodiment of the present utility model;

Fig. 6 is the structural representation of the 6th kind of embodiment of the present utility model.

The specific embodiment

With reference to Fig. 1, a kind of recessed light fixture, comprise lamp body 1, lamp body 1 is installed in the flameproof enclosure, and lamp body 1 is made up of light source, lamp socket and lampshade, lamp socket is inlaid on the lampshade, a light source is housed on the lamp socket, and same, lamp body 1 also can comprise a plurality of light sources, a plurality of light sources can be installed on the lamp socket, also can be installed on a plurality of lamp sockets.Lamp body 1 is fixedly mounted in the safety guard by screw, wire hole 9 is arranged on the safety guard, electric wire passes wire hole 9 light source is connected in the external circuitry, simultaneously, wire hole 9 usefulness fire proofings seal, spring clip 10 also is housed on flameproof enclosure, be used for lamp installation at sheet material, flameproof enclosure constitutes or covers fire proof heat-insulation layer 3 outward and constitute by wrapping up in fire proof heat-insulation layer 3 in the metal level 2, (as shown in Figure 2), wherein, metal level 2 selects for use some fire-resistant metal materials to make, as iron, copper, aluminium etc., the material of fire proof heat-insulation layer 3 can be selected common on the market some fire-proof heat-insulating materials such as alumina silicate now for use, rock wool, or ceramic fibre etc., like this, flameproof enclosure can prevent that the intensity of a fire from spreading towards periphery from lamp body 1 when fire takes place, and the fire proof heat-insulation layer in the flameproof enclosure 3 can not make that the hull-skin temperature of flameproof enclosure is too high and causes the burning of some combustibles around the flameproof enclosure.

On the cover wall of flameproof enclosure thermovent 4 is arranged, the roof that thermovent 4 can be positioned at flameproof enclosure also can be positioned on the sidewall of flameproof enclosure, but the general roof of selecting to be positioned at flameproof enclosure will be convenient to heat extraction so more.Expansion type fire prevention sheet 5 is equipped with at thermovent 4 places, and expansion type fire prevention sheet 5 is inlaid in the thermovent 4, can certainly be installed in thermovent 4 above or below, fix (as shown in Figure 5) with screw or other modes then.On the expansion type fire prevention sheet 5, there is louvre 6 position corresponding with thermovent 4 and/or between expansion type is prevented fires the edge of the edge of sheet 5 and thermovent 4 louvre 6 ' is arranged, in order to improve the light fixture thermal diffusivity, more than one thermovent 4 can be set, the more than one louvre 6 ' of formation between the edge that fire prevention is provided with more than one louvre 6 or fire prevention sheet 5 on the sheet 5 and the edge of thermovent 4 on flameproof enclosure.Be inlaid in the thermovent 4 for the ease of sheet 5 that expansion type is prevented fires, thermovent 4 can be arranged to have certain tapering, in addition, also the cover plate with opening 8 that prevents that expansion type fire prevention sheet 5 from coming off can be installed at thermovent 4 places, like this, light fixture can normally dispel the heat by thermovent 4 under general case, and thermovent 4 can seal voluntarily because of the prevent fires rapid expansion of sheet 5 of expansion type when meeting fire, flameproof enclosure is isolated lamp body 1 and extraneous combustibles fully, can prevent that the intensity of a fire from outwards spreading from lamp body 1.Expansion type fire prevention sheet 5 prolongs the burning material by fire prevention and makes, CP-25, the CS-195 that the burning material can be selected Minnesota Mining and Manufacturing Company for use prolonged in fire prevention, CPS-AA546 of U.S. Acnielsen Ltd. or the like, at this moment, also can wire hole 9 be set on safety guard no longer, electric wire can pass louvre 6 or 6 ' light source is connected in the external circuitry.

With reference to Fig. 3; as a kind of preferred implementation of above-mentioned embodiment, described flameproof enclosure is made of two metal layers 2 and one deck fire proof heat-insulation layer 3, and fire proof heat-insulation layer 3 is clipped between two metal levels 2; such structure was both simple, and metal level 2 can effectively be protected fire proof heat-insulation layer 3 again.

For expansion type fire prevention sheet 5 can not come off from thermovent 4, as shown in Figure 4, cavity 7 can be set on flameproof enclosure, thermovent 4 is positioned at the bottom, chamber of cavity 7, expansion type fire prevention sheet 5 is inlaid in the cavity 7, be pressed with cover plate 8 on the expansion type fire prevention sheet 5, have on the cover plate 8 and louvre 6 or 6 ' corresponding opening, cover plate 8 is fixedly mounted on the flameproof enclosure.

Above-mentioned is preferred implementation of the present utility model, and it does not constitute the restriction to technical solutions of the utility model.The utility model can also have other embodiment, also can only be made up of light source and lamp socket as lamp body 1, and lamp body 1 is installed in the flameproof enclosure, and flameproof enclosure had both played the effect of fire-proof and thermal-insulation, played the effect of lampshade again, and was simple in structure, reduces cost.Lamp body 1 can also be installed in other known manner in the flameproof enclosure, in addition, thermovent 4 can be set to counterbore, as shown in Figure 6, expansion type fire prevention sheet 5 is positioned at counterbore, loads onto cover plate 8 again on expansion type fire prevention sheet 5, makes things convenient for the installation of expansion type fire prevention sheet 5 like this.

Claims

1. recessed light fixture, comprise lamp body (1), it is characterized in that described lamp body (1) is installed in the flameproof enclosure, flameproof enclosure constitutes by wrapping up in fire proof heat-insulation layer (3) in the metal level (2), or cover fire proof heat-insulation layer (3) outward and constitute, thermovent (4) is arranged on the cover wall of flameproof enclosure, thermovent (4) locates to be equipped with expansion type fire prevention sheet (5), goes up at expansion type fire prevention sheet (5), there is louvre (6) position corresponding with thermovent (4) and/or between expansion type is prevented fires the edge of the edge of sheet (5) and thermovent (4) louvre (6 ') is arranged.

2. a kind of recessed light fixture according to claim 1 is characterized in that described flameproof enclosure is made of two metal layers (2) and one deck fire proof heat-insulation layer (3), and fire proof heat-insulation layer (3) is clipped between two metal levels (2).

3. a kind of recessed light fixture according to claim 1 and 2, it is characterized in that cavity (7) is arranged on the described flameproof enclosure, thermovent (4) is positioned at the bottom, chamber of cavity (7), expansion type fire prevention sheet (5) is inlaid in the cavity (7), be pressed with cover plate (8) on the expansion type fire prevention sheet (5), cover plate (8) is fixedly mounted on the flameproof enclosure.

4. a kind of recessed light fixture according to claim 1 and 2 is characterized in that described thermovent (4) is positioned on the roof of flameproof enclosure.

5. a kind of recessed light fixture according to claim 1 and 2 is characterized in that the quantity of described thermovent (4) is one or more.

6. formation more than one louvre (6 ') between a kind of recessed light fixture according to claim 1 and 2, the edge that it is characterized in that having on the described fire prevention sheet (5) more than one louvre (6) or fire prevention sheet (5) and the edge of thermovent (4).