Fireproof panel light

A fireproof panel light comprises a panel light housing having a wire hole for a wire to pass through and a fireproof pressure plate covering the wire hole disposed on the panel light housing; wherein, the fireproof pressure plate has a passage for receiving the wire, the passage extends from the wire hole outward to the edge of the fireproof pressure plate. The wire hole can be covered by using the fireproof pressure plate, the flame is prevented from fleeing outward from the wire hole, and the fire prevention effect at the wire hole is realized. And the extension direction of the passage on the fireproof pressure plate can further improve the fire prevention effect.

TECHNICAL FIELD OF THE INVENTION

The present invention relates to the field of panel lights, and in particular to a fireproof panel light.

BACKGROUND OF THE INVENTION

Panel lights are widely used for accent lighting in shopping malls, large supermarkets, offices, museums, exhibition halls, hotels, high-grade residences, etc., and can brighten the environment and also beautify the environment, thereby adding color to life. Fireproofing of panel lights is an important index. After searching, a Chinese patent CN209782342U (patent No.: 201920556397.0) titled “Downlights” and a Chinese patent CN208703672U (patent No.: 201820201018.1) titled “A Downlight” were found. All components of the panel lights disclosed in the above two patents are made of fireproof materials, avoiding the fire disaster caused by fire occurring inside the panel lights. While the panel light needs an external power box, the light emitting component inside the panel light will extend out of the housing to be connected to a wire, and a wire hole will be disposed on the housing corresponding to the position of the wire. However, no additional fire prevention measures are made at the wire hole in the existing panel lights. As a result, when there is a fire occurred inside the panel light, the flame may flee from the wire hole, resulting in a fire risk.

SUMMARY OF THE INVENTION

It is an object of the present invention to provide a fire rated panel light which can prevent flame from fleeing outside through the wire hole.

For achieving the above object, a fireproof panel light comprises a panel light housing having a wire hole for a wire to pass through and a fireproof pressure plate covering the wire hole disposed on the panel light housing; wherein, the fireproof pressure plate has a passage for receiving the wire, the passage extends from the wire hole outward to the edge of the fireproof pressure plate.

Preferably, to simplify the structure, at least one portion of top of the fireproof pressure plate is arched up to form the passage at the bottom of the fireproof pressure plate.

To realize the rapid mounting of the fireproof pressure plate, preferably, the fireproof pressure plate has a first end where the passage located, and a second end away from the passage; the fireproof pressure plate has a plurality of pins located at the second end of the fireproof pressure plate, and the panel light housing has a plurality of clamping holes, each clamping hole receiving one pin; the first end of the fireproof pressure plate is attached to the panel light housing through a fastener.

To further improve the fireproof performance, preferably, the fireproof pressure plate is disposed on the panel light housing covering the top of the wire hole, and a fireproof piece is disposed on the panel light housing for covering the bottom of the wire hole.

To further ensure the attachment of the fireproof pressure plate to the panel light housing, minimize the mounting gap between the fireproof pressure plate and the panel light housing and the wire, and improve the fireproof reliability, preferably, the wire hole is located on the top surface of the panel light housing and further comprises a first portion and a second portion in communication with the first portion; the first portion is matched with the cross-section of the wire, and the size of the second portion is greater than that of the first portion; a flexible clamping sheet attached to the panel light housing is located inside the second portion of the wire hole, and the flexible clamping sheet has a free end capable of bending relative to the panel light housing.

To ensure the clamping degree of the wire, avoiding the displacement of the fixed wire and avoiding the mounting gap as far as possible and further improving the fireproof reliability, preferably, the free end of the clamping sheet extends to the junction of the first portion and the second portion.

To facilitate the deformation of the clamping sheet and the mounting of the wire in the wire hole, preferably, a gap is defined between each side of the clamping sheet and the edge of the second portion of the wire hole.

Preferably, the wire hole is in T-shaped.

Compared with the prior art, the present invention has the following advantages: the wire can be positioned and the wire hole can be covered under the design of the fireproof pressure plate; In addition, the fireproof pressure plate can be fitted with the panel light housing and the wire, therefore the gap is minimized, and the flame is prevented from fleeing from the wire hole, and the fire prevention effect at the wire hole is realized. Besides, the passage extends from the wire hole outward to the edge of the fireproof pressure plate, that is, the extension direction from the wire hole is changed. Even if a tiny flame flees from the wire hole, the flame can be prevented from further fleeing due to the suppression of the fireproof pressure plate, thereby achieving a better fireproof effect. Moreover, compared with fixing and occluding the wire hole by only one sealing element and fixing the wire on one side of the wire hole by using a buckle in the prior art, the structure for fixing the wire is simpler and more convenient to assemble, and can effectively reduce the overall thickness of the panel light and improve the aesthetic appearance of the panel light.

DETAILED DESCRIPTION OF THE INVENTION

The present invention will be further described below in detail by embodiments with reference to the accompanying drawings.

FIG.1andFIG.2show a preferred Embodiment of the fireproof panel light of the present invention. The fireproof panel light comprises a panel light housing1and a fireproof pressure plate2.

The panel light housing1has a wire hole11, and a wire4for connecting a light-emitting component inside the panel light housing1can extend outside through the wire hole11to be electrically connected to an external terminal box. The fireproof pressure plate2covering the wire hole11is disposed on the panel light housing1and has a passage21for receiving the wire4. Since the commonly used fireproof pressure plate2has a limited thickness, in the embodiment, one portion of top of the fireproof pressure plate2is arched up to form the passage21at the bottom of the fireproof pressure plate2. The passage21extends from the wire hole11outward to the edge of the fireproof pressure plate2. After the wire4extends out from the panel light housing1through the wire hole11, the wire4is placed inside the passage21of the fireproof pressure plate2, so that the wire4is limited between the fireproof pressure plate2and the panel light housing1and tightly sticks with the both. In this way, there is almost no gap between the wire4and the fireproof pressure plate2, and between the wire4and the panel light housing1, therefore the flame is prevented from fleeing outside through the wire hole11when the flame appears inside the panel light housing1, and the fire prevention effect at the wire hole11is achieved. In addition, as the passage21extends from the wire hole11outward to the edge of the fireproof pressure plate2, the passage direction from the wire hole is changed. Even if a tiny flame flees from the wire hole, the flame can be prevented from further fleeing due to the suppression of the fireproof pressure plate, thereby achieving a better fireproof effect. Moreover, compared with occluding the wire hole by only one sealing element, and limiting the wire on one side of the wire hole by using a buckle in the prior art, the structure in the embodiment for limiting the wire is simpler and more convenient to assemble, and can effectively reduce the overall thickness of the panel light and improve the aesthetic appearance of the panel light.

To realize the rapid mounting of the fireproof pressure plate2, the fireproof pressure plate2has a plurality of pins22located at the second end2baway from the passage21of the fireproof pressure plate2. The pins22have an L-shaped cross-section and completely go down toward the second end2bof the fireproof pressure plate2. The panel light housing1has a plurality of clamping holes12, each clamping hole receiving one pin22; the first end2aof the fireproof pressure plate2is attached to the panel light housing1through a fastener20. During mounting, pins22at the second end2bof the fireproof pressure plate2insert into the clamping holes12, and the first end2aof the fireproof pressure plate2is then fixed to the panel light housing1through the fastener20, so that the mounting of the fireproof pressure plate2on the panel light housing1is rapidly realized and it is also easy to mount and operate.

The wire4in the panel light usually has a mounting portion at its fixed position. To protect the wire4and avoid the damage to the insulating skin outside the wire4caused by mounting, the insulating skin at the mounting portion of the wire4is thickened.

In this embodiment, the wire hole11is located on the top surface of the panel light housing1and further comprises a first portion111and a second portion112in communication with the first portion111.

The first portion111is matched with the cross-section of the wire4, and the size of the second portion112is greater than that of the first portion111; a flexible clamping sheet13attached to the panel light housing1is located inside the second portion112of the wire hole11, and the flexible clamping sheet13has a free end13acapable of bending relative to the panel light housing1. Based on the specific shapes of the first portion111and the second portion112, the size of the first portion111and the size of the second portion112refer to different parameters, respectively. For example, when the first portion111and the second portion112are circular, the size of the first portion111and the size of the second portion112refer to diameter, respectively. If the first portion111and the second portion112are rectangular, the size of the first portion111and the size of the second portion112include length and width, the length of the corresponding second portion112is greater than that of the first portion111, and the width of the second portion112is greater than that of the second portion112. When the first portion111is rectangular and the second portion112is circular, the size of the first portion111refers to the diagonal length of the rectangle, and the size of the second portion112refers to the diameter. The size of the second portion112is always greater than that of the first portion111, that is, the second portion112can cover the first portion111in plane. In this embodiment, the wire hole11is in T-shaped, that is, the length and width of the first portion111corresponds to the length and the width of the second portion112.

To facilitate the bending of the clamping sheet13for many times and reset the clamping sheet13effectively after being bent, in this embodiment, the panel light housing1is a metal g with a fireproof function. Based on the size of the second portion112and the size of the first portion111, the wire4can easily insert into the second portion112of the wire hole11and then be clamped into the first portion111of the wire hole11. The free end13aof the clamping sheet13extends to the junction of the first portion111and the second portion112, so that the clamping sheet3can be squeezed and placed into the sidewall of the mounting portion of the wire4in the first portion111, thereby fixing the wire4in the first portion111of the wire hole11. A gap is defined between each side of the clamping sheet13and the edge of the second portion112of the wire hole11, accordingly, it is convenient to pick up the clamping sheet13and it is convenient for the bending operation of the clamping sheet13.

During mounting, the clamping sheet13is bent upward to vacate the second portion112. Since the size of the second portion112is greater than that of the first portion111, the end of the wire4can easily insert into the second portion112. Then, the clamping slots on the mounting portion of the wire4are aligned with the plates on two sides of the first portion111of the wire hole11, and the wire4is moved into the first portion111of the wire hole11, so that the mounting portion of the wire4is clamped into the first portion111of the wire hole11and the clamping slots are clamped at the plates on two sides of the first portion111, thereby effectively preventing the wire42from sliding up and down. Then, the clamping sheet13is pressed down to make the clamping sheet13be placed in the second portion112of the wire hole11and located in the same plane as the top surface of the panel light housing1. At this time, the end of the clamping sheet13is resisted against the other side face of the mounting portion of the wire4, and the mounting portion of the wire4is effectively limited in the first portion111.

Then, a fireproof piece3is disposed on the panel light housing1for covering the bottom of the wire hole11. The fireproof piece3is fixed to the lamp housing1in the various existing fixation ways. In this embodiment, the fireproof piece3covers not only the full region of the wire hole1, but also the positions of the pins22of the fireproof pressure plate2, so that the fire prevention in regions where the wire4appears is realized as far as possible.

Based on the fixation of the wire4by the wire hole11, the wire4can be effectively fixed at the position of the wire hole11, and the structure for fixing the wire4will not protrude from the top surface of the panel light housing1, so that the attachment of the fireproof pressure plate2to the panel light housing1is further ensured, the mounting gap between the fireproof pressure plate2and the panel light housing1and the wire4is minimized, and the fireproof reliability is further improved.

It should be noted that in this specification and Claims of the present invention, the terms “front, back”, “up, down”, “left, right”, “side, top, bottom”, etc. to describe each particular structure and component are used for the purpose of facilitating the description of the invention and are based on a particular orientation in attached drawings. Since the embodiments disclosed by the present invention can be set in different directions, these terms indicating directions are only used as explanations and should not be used as restrictions. For example, the verbs “up”, “down” should not be limited to the direction opposite or consistent with the gravity.