CN216957371U

CN216957371U - Marker lamp panel and fire-fighting emergency marker lamp

Info

Publication number: CN216957371U
Application number: CN202121758174.6U
Authority: CN
Inventors: 曾凡昌
Original assignee: Lose International Electric Co ltd
Current assignee: Lose International Electric Co ltd
Priority date: 2021-04-17
Filing date: 2021-07-29
Publication date: 2022-07-12
Anticipated expiration: 2031-07-29

Abstract

The utility model provides a marker light panel and a fire-fighting emergency marker light, which belong to the field of emergency equipment, wherein the marker light panel comprises: the face cover is provided with a mark hole; the light guide plate is covered on the inner side of the coating; the light guide plate is provided with a mark hole, and the mark hole is provided with a part which covers/corresponds to the mark hole and protrudes into the mark hole. The utility model simplifies the structure of the sign lamp panel and improves the whole assembly property of the sign lamp.

Description

Marker lamp panel and fire-fighting emergency marker lamp

Technical Field

The utility model relates to the field of emergency equipment, in particular to an emergency sign lamp panel and an emergency sign lamp.

Background

The fire-fighting emergency marker lamp is used as a lamp for guiding people to escape in danger and is widely applied to large-scale building places such as various markets, and due to the importance and the particularity of the lamp, the national standard GB17945-2010 has clear regulations on production requirements and various parameters of the fire-fighting emergency lamp.

Patent application CN202020065064.0 describes a structure adopted by a large category of marker lights on the market, in which an LED light source is mounted on a frame, light is irradiated from the frame position to the front side of the frame, and the light diffusion and the light reflection of a bottom plate are utilized to achieve the purpose of lighting the marker pattern on the marker panel; however, due to the size of the sign pattern and the attenuation of light, the problems that the brightness of the part of the sign pattern close to the LED light source is normal but the brightness of the part of the sign pattern far from the LED light source is too low, or the brightness of the part of the sign pattern far from the LED light source is normal but the brightness of the part close to the LED light source is too high, and the like, do not meet the requirements of 6.3.1.3 in the national standard GB17945-2010 on the surface brightness of the sign, and are not solved in the industry all the time. Moreover, the light rays of the bottom LED lamp bead strips are scattered, diffused and diffused in the internal space of the marker lamp to display the marker patterns on the marker lamp, and the characteristics of the structural design of the marker lamp lead to large dimensionality, difficulty in reducing the thickness and the structural complexity, and poor structural strength, so that the assembly performance is poor, and the assembly efficiency is low.

SUMMERY OF THE UTILITY MODEL

Based at least in part on the above-mentioned disadvantages, it is an object of the utility model to improve the assemblability of emergency marker lights.

In one embodiment of the present invention, there is provided a marker light panel including:

a light guide plate having a first surface;

the surface cover covers/is compounded on the first surface and is provided with a mark hole;

the part of the light guide plate corresponding to the mark hole is exposed to the outside through the mark hole, and the light guide plate extends to the periphery of the mark hole and is used for being optically connected with the light source body.

the face cover is provided with mark holes and can be optionally provided with the shape of a mark pattern;

a light guide plate bonded (conforming to) or covered (covering/overlaying) on the inner side of the face cover;

the light guide plate covers or corresponds to the mark hole and protrudes into the mark hole, and the light guide plate extends to the periphery of the mark hole so as to be optically connected with the light source body. This means that: the portion of the light guide plate protruding into the index hole is formed to protrude from the light guide plate body in an integrally extending structure.

Some embodiments of the light guide plate with protrusions in the shape of a logo pattern (the protrusions partially protruding into the logo holes) may be referred to as light guides in other embodiments.

In addition, the inner side of the face cap is understood to be the side which is located inside the lamp when the face cap is assembled to the emergency marker lamp, and vice versa the outer side.

Optionally, the marker light panel in some embodiments, further comprising: a circuit board; wherein, the light source body is arranged on the circuit board; the circuit board and the end part of the light guide plate are relatively fixed below the mark hole. The circuit board may be implemented in the form of a flexible/rigid printed circuit board or the like.

Optionally, in the sign light panel in some embodiments, the light guide plate includes a plurality of portions respectively covering different portions of the sign pattern. Of course, a complete light guide plate can also independently cover all the sign patterns, but different parts of the light guide plate are respectively adapted to different sign patterns, so that materials can be saved, or the different parts can be conveniently and independently maintained. The different parts of the light guide plate may be independent from each other, which means separate from each other, or may be integrally connected to each other.

Optionally, in some embodiments, the light guiding dots are distributed on the first surface and exposed along the mark hole to the outside, or, b) the light guiding dots are distributed on a portion of the first surface exposed through the mark hole to the outside.

Optionally, in some embodiments, a logo pattern is formed on the first surface in a planar manner or in a protruding manner, and the light guide points are distributed on the logo pattern;

optionally, in some embodiments, the logo pattern is formed on the first surface and/or the second surface in a planar/concave/convex manner, and the light guide points are distributed on the logo pattern; generally, the more the logo patterns protrude from the first surface and the second surface, the better the optical effect of the lamp on externally presenting the logo patterns may be in some scenes, and the logo patterns can be more clearly visually presented to the outside. However, in other applications, the logo may be recessed to some extent into the panel body or recessed from the first surface of the light-transmitting panel. The specific formation of the logo pattern on the first surface is not a limitation of the present invention.

Optionally, in some embodiments, the landmark holes have a shape that fits/matches the landmark pattern, which is embossed into the landmark holes;

optionally, in some embodiments, the logo apertures are aligned with the logo pattern to position the first cover on the first surface or the second cover on the second surface;

optionally, in some embodiments, the light guide plate further comprises light guide points, at least a portion of the light guide points being exposed along the mark holes;

optionally, in some embodiments, the light guide points a) are distributed on the first surface and/or the second surface in the shape of the logo pattern, or B) are distributed on the first surface and/or the second surface in the shape of the outline of the logo pattern, or C) are distributed on the raised logo pattern; or D) are distributed over the first surface and/or the second surface as a whole; or,

E) the first surface and/or the second surface form the planar mark pattern through the light guide points; or,

F) the first surface is provided with the mark pattern formed by the light guide point in a plane;

optionally, in some embodiments, the first cover is positioned and laminated to the first surface by the logo pattern protruding from the first surface, and/or the second cover is positioned and laminated to the second surface by the logo pattern protruding from the second surface;

the first cover and the second cover (or in other embodiments, back cover) are connected to each other along the periphery of the light source board. The back cover is partially recessed toward the second surface to abut against the second surface, thereby defining a gap between the back cover and the second surface.

In the enclosed space (enclosure) of the second cover BC1 and the first cover FC1, the concave portion is recessed from the second cover (from the outer surface of the back cover), and the concave portion ACC23 protrudes from the inner surface of the back cover and abuts against the second surface, so that the light guide plate and the back cover and the first cover FC1 are more stably fixed relatively. Meanwhile, since the inner recess is partially/partially formed on the rear cover, a gap is formed between a) the relatively flat portion of the rear cover where the inner recess is not formed, and b) the second surface, and this gap space can be used for wiring/outlet in the lamp. The inner space between the face cover and the rear cover is fully utilized, and an extra plastic part with thickness is not needed to be adopted to pad the wire outlet position of the power line between the light guide plate and the rear cover, so that the structure of the lamp is simplified, the thickness of the lamp is reduced, the structural strength and the structural stability of the lamp are improved, and the lamp is more compact and simpler to assemble on the whole.

The surface covers (the first surface cover and the second surface cover) are coating layers, the coating layers are plastic plates, aluminum films, metal films, stainless steel plates or aluminum plates, and the thickness of the coating layers is 0.05mm-0.2mm, 0.2mm-0.4mm, 0.4mm-0.6mm, 0.6mm-0.8mm, 0.8mm-1mm, or any value of more than 1mm and less than 0.05 mm; the metal film is an aluminum film, and the plastic plate is a PVC plate or a PE plate.

Optionally, in the sign light panel in some embodiments, the circuit board is disposed in a strip shape below the sign hole;

the light source body is multiunit LED lamp pearl (or for short multiunit LED, wherein, every group LED lamp pearl includes one or more LED lamp pearl), lays on the circuit board, respectively corresponding to each part in the multiple parts of light guide plate, or each sub-light guide plate.

Optionally, in the sign light panel in some embodiments, the light guide plate covers the inside of the face cover, and extends to an outer contour (outline) larger than the corresponding sign pattern/sign hole inside the face cover. The light guide plate and the surface cover are combined in a covering mode to form an integrated structure, so that the mechanical strength of the surface cover assembly formed by the light guide plate and the surface cover is enhanced, and the assembly performance of the surface cover assembly in the overall production process of the lamp is improved.

The lower end part of the light guide plate is respectively provided with a plurality of inwards concave light inlets which are used for respectively accommodating a plurality of groups of LED lamp beads; wherein the light inlet is not through/through the sign board. The light inlet on the light guide plate and the LED lamp beads accommodated in the light inlet form optical connection between the light guide plate and the light source body.

Optionally, in the sign light panel in some embodiments, the light guide plate is compositely/integrally connected with the face cover inside the face cover; the portion of the light guide plate corresponding to the mark hole is optically exposed to the outside of the face cover through the mark hole or a light-transmitting member (e.g., light-transmitting paper) in the mark.

Optionally, in some embodiments of the marker light panel, a portion of the light guide plate corresponding to the mark hole protrudes out of the mark hole, and distributed light guide points are formed thereon. Compared with the prior art which depends on the diffusion and reflection of air to display the mark pattern, the mark pattern is displayed outwards with more uniform brightness through the conduction of the light guide plate/light guide part to the light and the emergence of the light through the light guide point.

Optionally, in the marker light panel in some embodiments, the light guide plate is compositely/integrally connected with the face cover inside the face cover; the light guide plate is covered with a mark hole portion, and is exposed to the outside of the cover through a mark hole or a light transmitting member (e.g., light transmitting paper) in the mark.

Optionally, in the sign light panel in some embodiments, a) a thickness of the light guide plate decreases as the light guide plate extends away from the circuit board; or, b) the part of the light guide plate, which is farther away from the circuit board, has smaller thickness; or c) the thickness of the light guide plate is gradually reduced as the light guide plate extends away from the circuit board;

optionally, in some embodiments, the light guide plate covers/covers the edge of the logo hole, or covers or fits the surface cover along the logo pattern/logo hole.

Optionally, in the sign light panel in some embodiments, a portion of the light guide plate covering/corresponding to the sign hole protrudes outward through the sign hole.

Optionally, in the sign light panel in some embodiments, the portion of the light guide plate protruding beyond the sign hole extends/expands toward the periphery of the sign hole so as to have a dimension larger than that of the sign hole; the edge of the mark hole is clamped at the part of the light guide plate inside and outside the mark hole;

optionally, in the sign light panel in some embodiments, the portion of the light guide plate protruding out of the sign hole forms a sign pattern, and forms distributed light guide points thereon.

Optionally, in some embodiments, the sign light panel may include a light guide plate covering/encapsulating the edges of the sign holes, or a cover covering or encapsulating the surface along the sign pattern/sign holes.

Optionally, in the sign light panel in some embodiments, a portion of the light guide plate protruding beyond the sign hole extends to the periphery so that the dimension of the portion is larger than that of the sign hole, or the inner edge/edge of the sign hole is engaged with the light guide plate.

Optionally, in some embodiments, the light guide plate is made of one or more of a material with a sub-lattice force, polycarbonate plastic, and polystyrene plastic, and is injection molded in the sign hole and on the inner wall of the face cover, and the face cover is a stainless steel face cover. In addition, in some embodiments of the utility model, through processes such as plastic deformation, an integrated structure of the light-transmitting part/light-transmitting plate coated metal lamp panel can be formed, the number of independent parts in the lamp and the assembly complexity among the independent parts are reduced, assembling links such as glue adhesion for a stainless steel surface cover are avoided, and the overall assembly performance of the lamp is improved.

An emergency sign light fixture comprising a sign light panel according to any one of the embodiments of the present invention.

Optionally, the emergency sign light of some embodiments, further comprising: the power line and the rear cover are matched with the face cover;

the front cover and the rear cover are connected with each other along the periphery of the light guide plate to enclose the light guide plate and the circuit board, and the power line is connected to the circuit board to supply power to the circuit board.

Optionally, the emergency sign lamp of some embodiments further includes a reflective sheet interposed between the light guide plate and the rear cover, and attached to the light guide plate.

In one embodiment of the present invention, there is provided a fire emergency sign light, comprising,

a housing provided with a mark hole for a mark pattern;

and the light guide part covers the inner side of the shell, protrudes into the mark hole and extends from the mark hole along the inner wall of the shell. The light source bodies (which are not always opposite to the sign hole) positioned in the housing at a distance from the sign hole are guided to the sign hole and emitted from the sign hole to the outside by the light guide part extending in the housing through the light guide part. This means that: the part protruding into the mark hole on the light guide part and the other part on the light guide part are integrally extended and connected.

Optionally, in the fire emergency sign lamp according to some embodiments, the light guide part is wrapped/covered/attached to the inner wall of the housing and extends to form the light guide plate, so as to receive and transmit the light emitted from the light source body.

Optionally, the fire emergency sign light of some embodiments further comprises: the light source body is arranged on the circuit board;

one end of the circuit board and the light guide plate, both of which are located below/above the mark hole and relatively fixed below/above the mark hole; the light source body is optically connected to the upper/lower end portions of the light guide plate.

The light guide plate is formed by extending different parts of the mark hole on the inner wall of the shell respectively, and the parts are mutually independent or called as a plurality of sub light guide plates.

Alternatively, different portions of the light guide plate covering the symbol holes may be formed with a plurality of sub light guide plates, which are independent of each other or integrally connected to each other, on the inner wall of the case, respectively.

Optionally, in the fire emergency sign lamp according to some embodiments, the circuit board is in a strip shape and is disposed below/around the sign hole;

the light source body comprises a plurality of groups of LED lamp beads, is arranged on the circuit board along a strip shape and respectively corresponds to different sub light guide plates in the plurality of sub light guide plates;

and the plurality of sub light guide plates respectively cover different parts of the mark holes and are respectively and optically connected with the plurality of groups of LED lamp beads.

Optionally, in the fire emergency sign lamp according to some embodiments, an upper end portion or a lower end portion of each of the plurality of sub light guide plates is recessed inward to form at least one light inlet to accommodate a spatially corresponding one of the plurality of groups of LED lamp beads; wherein the light inlet is not through/through the sign board.

Alternatively, some embodiments of the fire emergency sign light may include a light guide plate that covers/covers the edge of the sign hole, or,

and the light guide plate is attached to/covers the shell along the mark hole or the edge of the mark hole.

Optionally, in the fire emergency sign lamp according to some embodiments, the light guide portion protrudes from the sign hole to the outside of the housing, and extends/expands outside the housing toward the periphery of the sign hole, and the edge of the sign hole is clamped/fastened to: i) the light guide part protrudes out of the shell and ii) between the light guide plate.

Optionally, the fire emergency sign light of some embodiments further comprises: the light source body is arranged on the circuit board; the circuit board is fixed below/above the mark hole and opposite to the end part of the light guide plate; this means that: an end portion of the circuit board and the light guide plate, both of which are positioned below/above the index hole and relatively fixed below/above the index hole;

and a light guide plate extending from the mark hole on the inner wall of the housing to form different sub light guide plates to cover different portions of the mark pattern, respectively.

Optionally, in the fire emergency sign lamp according to some embodiments, the circuit board is in a strip shape and is disposed at a periphery below/below the sign hole;

the light source body comprises a plurality of groups of LED lamp beads, and the LED lamp beads are arranged on the circuit board along the shape of a strip and respectively correspond to different parts of the mark patterns.

Optionally, in the fire emergency sign lamp according to some embodiments, the different sub light guide plates are respectively optically connected to the light source body;

the circuit board is strip-shaped and is arranged below/below or at the periphery of the mark hole;

the light source body includes multiunit LED lamp pearl, and on the fringe shape was laid on the circuit board, it was corresponding to different sub-light guide plates respectively.

Optionally, in the fire emergency sign lamp according to some embodiments, the lower end portion of the light guide plate is recessed inward to form a plurality of light inlets for respectively accommodating a plurality of groups of LED lamp beads; wherein the light inlet is not through/through the sign board.

Alternatively, in some embodiments of the fire emergency sign light, the light guide plate may cover/cover the inner edge of the sign hole, or,

and a light guide plate covering/covering the housing along the logo pattern or along the logo hole or an inner edge thereof.

Optionally, in the fire emergency sign lamp of some embodiments, the light guide portion protrudes out of the sign hole and extends toward the periphery of the sign hole to engage with the inner edge/rim of the sign hole.

Alternatively, in some embodiments of the fire emergency sign light,

the mark hole is formed in the shape of a mark pattern, and the portion of the light guide portion protruding out of the mark hole forms the mark pattern.

I) The light guide part is arranged on the optical surface which is protruded outside the mark hole, or II) the light guide part is arranged on the optical surface which is exposed outside through the mark hole, and light guide points distributed in the mark pattern are formed.

Optionally, in the fire emergency sign lamp or the sign lamp panel of some embodiments, a) the thickness of the light guide plate decreases or gradually decreases as the light guide plate extends away from the light source body; or, b) a portion of the light guide plate farther/larger from the light source body has a smaller thickness, and a portion of the light guide plate smaller from the light source body has a larger thickness.

Adjust through "the light guide plate thickness" and "the distance of this part light guide plate and the light source body" inverse ratio ground, can make on the light guide plate apart from the farther position of the light source body, carry out certain degree of convergence/concentration with light ray through thinner light guide plate to outwards jet out stronger light on the position that corresponds, this has compensatied to a certain extent: the light in the light guide plate attenuates as the distance from the light source body increases, which makes the light intensity emitted from the entire light guide plate to the outside through the optical surfaces in the index holes more uniform.

In some embodiments, the optical connection, for example, between the light guide plate and the light source body, means: the light guide plate is connected to the light source body such that: light from the light source body may be received and transmitted by the light guide plate, or light may be emitted from the light source body and transmitted along the light guide plate.

Optionally, in the fire emergency sign lamp or the sign lamp panel of some embodiments, I) the optical surface of the light guide portion protruding out of the sign hole, or II) the optical surface of the light guide portion exposed out of the sign hole through the sign hole forms a distributed light guide point; and A) the distributed light guide points increase in size as they are positioned away from the light source body; or, B) the light guide point farther from the light source body has a larger size, and the light guide point closer to the light source body has a smaller size.

Through the size (diameter for example) that this kind of leaded light point adjusted the leaded light point along with its change with the distance of the light source body such as the circuit board that has LED, can make the position farther apart from the light source body on the light guide plate, through bigger light guide point to the external stronger light of emittings, this has compensatied to a certain extent: the light in the light guide plate attenuates as the distance from the light source body increases, which makes the light intensity emitted from the entire light guide plate to the outside through the optical surfaces in the index holes more uniform.

Optionally, the fire emergency sign light of some embodiments further comprises: a power supply line, and the case further includes i) two face covers, or ii) a face cover and a rear cover, which are connected to each other along a circumference of the light guide plate; the mark hole is arranged on the face cover;

the light guide part and the circuit board are contained between the two face covers or between the face cover and the rear cover;

the power line is connected with the circuit board to supply power to the circuit board; the surface cover is a stainless steel surface cover.

Optionally, in the fire emergency sign lamp of some embodiments, the light guide part and the light guide point thereof are made of one of a sub-grid force material, polycarbonate plastic or polystyrene plastic, and are injection molded in the sign hole and the inner wall of the face cover.

Optionally, the fire emergency sign lamp (or emergency sign lamp for short) of some embodiments further includes a reflective sheet interposed between the light guide plate and the rear cover, and attached to the light guide plate.

In some embodiments of the present application, the light guide plate has two surfaces facing away from each other, at least one of the two surfaces integrally protrudes to form a mark pattern, and in the fire emergency sign lamp, the protruding portion of the mark pattern protrudes into the mark hole on the surface cover to form the light guide plate and the fire emergency sign lamp capable of displaying on a single surface or on two surfaces. The logo pattern is a part integrally connected to the light guide plate, and forms a protrusion on one or both (side) surfaces of the light guide plate, and the protrusion protrudes from the light guide plate main body in an integrally extending structure. The protrusion direction of the protrusion is different from the main extending direction of the light guide plate body, for example, has an included angle of about 90 °, so that the light guide plate body and the protrusion together define (define) a bent light guiding path, and since the mark pattern as the protrusion is integrally formed by extending the light guide plate body, the bent light guiding path is continuous and uninterrupted. The light transmission performance is improved, for example, through the light guide path, the light in the main body part of the light guide plate can be smoothly transmitted to the mark pattern with low loss to be displayed. Moreover, the integral extending structure of the logo patterns on the light guide plate body also simplifies the structure of the light guide plate in the logo lamp, so that the light guide plate with the simple structure is convenient to be integrally processed and manufactured by injection molding and the like, and the assembly property of the logo lamp and the manufacturability of the light guide plate in the logo lamp are improved.

In some embodiments of the sign light panel or the fire emergency sign light fixture, the structural relationship between 1) the light guide plate and 2) the sign hole or the inner wall of the housing may be covering or wrapping. Taking the light guide plate and the inner wall of the housing as an example, if the light guide plate covers the inner wall of the housing, the light guide plate is generally thermally fused with the inner wall of the housing through plastic deformation of the light-transmitting plastic material of the light guide plate, and the light guide plate and the inner wall of the housing are integrally formed to form a covering structure, which is not adhered through glue. On the other hand, if the housing covers the light guide plate, the following means from one aspect: the shell contacts the light guide plate through the inner wall of the shell, and the shell and the light guide plate can be stably fixed relatively in a glue adhesion mode, a bolt connection mode and the like. The covering and covering structure relationship between the light guide plate and the mark hole is similar to that, and is not described in detail. In addition, when the light guide plate/light guide portion covers the inner wall of the case and protrudes from the logo hole to the outside of the case, the portion of the light guide portion protruding out of the case may be extended to the periphery of the logo hole by means of heat treatment, high temperature, pressing, or the like, so that the edge of the logo hole may be fixed to the inner portion and the outer portion of the logo hole by the light guide portion.

In some embodiments, the light guide plate guides light rays at a deeper position of the housing into the sign hole of the housing and emits the light rays outwards, which can also be understood as that the sign hole integrally arranged on the housing and the light guide plate inside the housing establish an optical channel based on a light guide material between the inside of the housing and the sign hole, so that the panel of the lamp can emit light rays outwards through the sign hole to present a sign pattern.

In some embodiments, the light-transmitting portion may be further compounded with the face cap, for example, by plastic deformation, which allows the bonding relationship between the light-transmitting portion and the face cap to be: the light-transmitting part covers the edge of the mark pattern/mark hole, or the light-transmitting part covers the surface cover along the edge of the mark hole, so that the structural strength between the light-transmitting part and the mark pattern is increased, the light-transmitting part can be tightly connected with the mark hole/mark pattern, the structural strength/stability/safety of the whole panel or the lamp is enhanced, and the assembly performance of the whole lamp is enhanced. In other embodiments, the light-transmitting part respectively expands/extends inside and outside the mark hole in an expanding manner, so that the edge of the mark hole and the light-transmitting part form a joint relationship in a clamping manner, the light-transmitting part and the mark hole are tightly connected, the light-transmitting part and the mark hole are combined without using adhesive and other manners, and the structural strength is further enhanced.

Furthermore, in some embodiments, since the light guide plate or the light-transmitting portion thereof covers the housing or the face cover of the lamp along the edge of the logo pattern/logo hole and the inner wall of the face cover, the logo lamp panel and the related logo lamp are integrally formed with the face cover, and the separate/independent modules in the panel assembly/face cover assembly are integrally provided, the number of parts to be assembled is reduced during the installation of the panel or lamp, and the circuit board providing the light source can be relatively fixed in the housing by the fastening fit between the ends of the light-transmitting plate, which further improves the assembling property of the lamp/panel.

In some embodiments, the light guide plate protrudes into the mark hole at a portion covering the mark hole, or protrudes out of the housing through the mark hole, that is, one side of the light guide plate facing the mark hole is not a plane but has a protruding portion adapted to the mark hole, the protruding portion and the main body portion of the light guide plate are integrally formed by injection molding or other processes, during the installation of the lamp, the protruding portion can be directly fastened into the mark hole on the surface cover/housing, the number of components of the lamp or the marker light panel is reduced, the structure is simplified, and the assembly property is enhanced. Certainly, from another perspective, in other embodiments, the light guide plate may also be regarded as being formed by covering/covering the inner wall of the surface cover or the housing with the light guide portion in the sign hole and extending along the inner wall of the surface cover/the housing to the outline (outline) of the sign hole.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 illustrates an exploded view of an emergency sign light fixture in accordance with one embodiment of the present invention;

FIG. 2 shows a schematic inside view of a panel in the emergency sign light fixture of FIG. 1;

FIG. 3 shows an outside schematic view of a panel in the emergency sign light fixture of FIG. 1;

fig. 4a shows a (partial) cross-sectional view of a panel in the emergency sign light fixture of the embodiment of fig. 1 or of a further embodiment of the utility model;

FIG. 4b is a schematic view of the face cover and light transmissive portion of the sign light panel of FIG. 4a in a separated condition;

FIG. 5a is a schematic view showing a structure of a light guide plate having a plurality of sub light guide plates in a sign light panel according to an embodiment;

FIG. 5b shows an enlarged partial side view of the light guide plate of FIG. 5 a;

FIG. 5c is a schematic diagram showing the overall outline (outline) of the light guide plate in FIG. 5a in the left-view direction;

FIG. 5d shows a schematic distribution of localized light guide points on the optical surface of the light guide plate of FIG. 5 a;

in the description of the drawings, the same, similar or corresponding reference numerals indicate the same, similar or corresponding elements, components or functions.

Detailed Description

Reference will now be made in detail to the embodiments, examples of which are illustrated in the accompanying drawings. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of various described embodiments. It will be apparent, however, to one skilled in the art that the various described embodiments may be practiced without these specific details. In other instances, well-known methods, procedures, components, circuits, and networks have not been described in detail as not to unnecessarily obscure aspects of the embodiments.

The terminology used in the description of the various embodiments herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used in the description of the various embodiments and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items. It will be further understood that the terms "comprises," "comprising," "includes," "including," and/or "including," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

The word "by" as used in this application may be construed as "by" (by), "by" (by virtual of) or "by" (by means of) depending on the context. The words "if", as used herein, may be interpreted as "at … …" or "when … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, "when … …" or "when … …" in some embodiments may also be interpreted as conditional assumptions such as "if", "like", etc., depending on context. Similarly, the phrases "if (a stated condition or event)", "if determined" or "if detected (a stated condition or event)" may be construed as "when determined" or "in response to a determination" or "when detected (a stated condition or event)", depending on the context. Similarly, the phrase "in response to (a stated condition or event)" in some embodiments may be interpreted as "in response to detecting (a stated condition or event)" or "in response to detecting (a stated condition or event)", depending on the context.

It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, a first may also be termed a second, and vice versa, without departing from the scope of the present disclosure. The word "if" as used herein may be interpreted as "at …" or "when …" or "in response to a determination", depending on the context.

The present application is further illustrated by way of the following examples, which are not intended to limit the scope of the utility model.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

FIG. 1 illustrates an exploded view of an emergency sign light fixture in accordance with one embodiment of the present invention; FIG. 2 shows a schematic inside view of a panel in the emergency sign light fixture of FIG. 1; FIG. 3 shows an outside schematic view of a panel in the emergency sign light fixture of FIG. 1;

fig. 4b is a schematic view of the cover and the transparent part of the sign panel shown in fig. 4a in a separated state. Note that, in this figure, the front cover and the light-transmitting portion are shown in a separated state, only to show the respective structural features of the front cover and the light-transmitting portion more clearly, but in the sign lamp or the panel of the actual embodiment, the front cover and the light-transmitting portion are not easily separated from each other due to the snap-fit/snap-fit structural relationship between the front cover and the light-transmitting portion, or the light-transmitting portion is coated on the front cover (for example, by means of injection molding/encapsulation).

The fire emergency sign light of some embodiments of the present invention will be described with reference to fig. 1, 2, 3 and 4.

The emergency sign lamp shown in fig. 1 according to an embodiment of the present invention includes housings FC1 and BC1, each of which has a sign hole H1;

light guide portion P1 'covers logo hole H1 from the inside of case FC1 and projects into logo hole H1 to conduct the internal light to the outside of the case, and light guide portion P1' also extends from the logo hole H1 along the inner wall of case FC 1.

Alternatively, the light guide part P1' covers/wraps the inner wall of the case FC1 around the logo hole H1, and extends to form the light guide plate P1 to receive and guide the light emitted from the light source body (not shown).

Optionally, the fire emergency sign lamp of some embodiments further comprises: circuit board C1 and the light source body of laying on circuit board C1.

Optionally, in the fire emergency sign lamp of some embodiments, the circuit board C1 is located below/above the sign hole H1 and fixed opposite to the end of the light guide plate P1. For example, the circuit board C1 may be directly fixed to the light guide plate P1, or may be fixed to the light guide plate by a housing such as a front cover or a rear cover.

Alternatively, in the fire emergency sign lamp according to some embodiments, the light guide plate P1 extends from different portions of the sign hole H1 to form a plurality of sub light guide plates P1 independent of each other on the inner wall of the housing FC 1.

Optionally, in the fire emergency sign lamp of some embodiments, the circuit board C1 is in a strip shape, and the circuit board C1 is disposed below/around the sign hole H1, as shown in fig. 1. The light source body comprises a plurality of groups of LED lamp beads, the LED lamp beads are arranged on the circuit board C1 along a strip shape and respectively correspond to different sub light guide plates P1, and 3 sub light guide plates P1 are shown in figure 1. The 3 sub light guide plates P1 respectively cover different parts of the sign hole H1, such as the corresponding 3 parts of the sign hole on the face cover FC1 of "left arrow", "right arrow" and "human-shaped sign" shown in fig. 3, and are respectively optically connected with the groups of LED lamp beads.

Optionally, between each sub light guide plate and the LED lamp bead group, there may be one-to-one, one-to-two, one-to-three, etc., and it may depend on the size of the sign hole covered by the sub light guide plate, that is, the size of the sign pattern corresponding to the sub light guide plate, as shown in fig. 2, the sub light guide plate covering the larger "human-shaped sign" pattern/sign hole may be provided with 4 light incident holes, and receive 4 LED lamp beads, so that the sub light guide plate transmits light to display the "human-shaped sign" sign pattern, while the sub light guide plate covering the smaller "right arrow" pattern/sign hole may be provided with 2 light incident holes, and receive 2 LED lamp beads, so that the sub light guide plate transmits light to display the "right arrow" sign pattern.

Optionally, in the fire emergency sign lamp according to some embodiments, an upper end portion or a lower end portion of each of the plurality of sub light guide plates P1 is recessed inward to form at least one light inlet LEDHole1, and accommodates a corresponding one of the plurality of groups of LED lamp beads (not shown in the drawings); the light inlet LEDHole1 is not penetrating through the light guide plate P1.

Optionally, in the fire emergency sign lamp of some embodiments, the light guide plate P1 is 1) covered on the edge of the sign hole H1 by plastic deformation or the like, or 2) covered on the sign hole H1 and compounded on the edge of the sign hole H1 by gluing.

Optionally, in some embodiments of the fire emergency sign light, the light guide plate P1 covers or wraps the housing FC1 along the edge of the sign hole H1 or the sign hole H1, as shown in fig. 4 a.

Optionally, in the fire emergency sign lamp of some embodiments, the light guide portion P1' protrudes from the sign hole H1 to the outside of the housing such as the face cover FC1, as shown in fig. 4a, and extends to the periphery of the sign hole H1 outside the face cover FC1 to form an extension portion EX1, and the Edge1 of the sign hole H1 is snapped/clipped to: i) the light guide portion P1' protrudes from the portion PR1 other than the face cover FC1, for example, the extension portions EX1, ii) between the light guide plates P1.

Optionally, in the fire emergency sign lamp according to some embodiments, the sign hole H1 is opened in the shape of a sign pattern, as shown in fig. 3, a portion of the light guide portion P1' protruding beyond the sign hole H1 is also correspondingly formed into the sign pattern. I) The light guide portion P1' has light guide points distributed in a logo pattern on the optical surface OS1 protruding beyond the logo hole H1. Or, II) light guide points (not shown in the figure) distributed in a logo pattern are formed on the optical surface OS1 exposed to the outside through the logo hole H1 on the light guide portion P1'.

Optionally, the fire emergency sign light of some embodiments further comprises: the power supply line W1, and the case further include i) two face covers FC1, or ii) a face cover FC1 and a rear cover BC1, which are connected to each other along the periphery of the light guide plate, and the logo hole H1 may be opened on the face cover FC 1. The light guide portion P1' and the circuit board C1 are housed between the two face covers FC1, or between the face cover FC1 and the rear cover BC 1.

A power supply line W1 is connected to the circuit board C1 within the housings FC1, BC1 to supply power thereto; face lid FC1 is stainless steel face lid FC 1.

It will be appreciated that if the housing includes two face covers FC1 interconnected along the periphery of the light guide plate, the two face covers may each have indicia openings therein to display indicia patterns in two directions away from each other.

Here, the cover FC1 of the sign lamp may be made of metal, such as stainless steel. In the conventional metal panel marker lamp, the mark pattern on the face cover FC1 can be formed by punching, but in the prior art, in order to avoid damaging the user to the outside and protecting the electronic elements to the inside, a light-transmitting member matching with the mark pattern is adopted according to the shape of the mark pattern, and the light-transmitting member is adhered to the face cover FC 1. Because the adhesion between the metal panel and the light-transmitting member made of plastic material is not good, under the requirement of ensuring the safety performance of the product, a large amount of labor is needed and a large amount of adhesive is used, the assembly operation steps are multiple, the complexity of the product is increased, the assembly performance is reduced, the period required by glue adhesion is long, the production period of the product is prolonged, the capacity is wasted, the adhesive is easy to flow to the surface of the mark pattern, the marking function and the attractiveness of the lamp are affected, and the light-transmitting member is easy to fall off from the stainless steel surface cover FC1 in the use process of the lamp, so that the lamp is damaged.

Optionally, in the fire emergency sign lamp of some embodiments, the light guide points on the light guide portions P1 'and P1' are made of one of a subgrid material, polycarbonate plastic or polystyrene plastic, and are injection molded in the sign hole H1 and on the inner wall of the face cover FC 1.

The fire emergency sign lamp further comprises a reflecting sheet (not shown in the figure) which is arranged between the light guide plate P1 and the rear cover and is attached to the light guide plate P1.

In another embodiment, there is also provided a marker light panel comprising: the face cover FC1 is provided with a logo hole H1, and optionally, the logo hole H1 has a shape similar to the logo pattern shown in fig. 3 (the logo pattern is generally described by taking a fire emergency logo pattern as an example in the present application). The surface cover FC1 covers the light guide plate P1 with its inner side. Optionally, a portion PR1 of the light guide plate P1 covering/corresponding to the logo hole H1 protrudes into the logo hole H1, and the light guide plate P1 extends to the periphery of the logo hole H1 to be optically connected to the light source body.

Optionally, the marker light panel in some embodiments, further comprising: circuit board C1; wherein, the light source body is arranged on the circuit board C1; the circuit board C1 is fixed to the end of the light guide plate P1 below the index hole H1.

Alternatively, in some embodiments of the sign light panel, the light guide plate P1 includes a plurality of portions, or is a plurality of sub light guide plates P1, such as 3 sub light guide plates P1 shown in fig. 1 and 2, respectively covering different portions of the sign pattern. The light guide plates of the plurality of portions may be independent of each other, as shown in fig. 2; or may be integrally connected to each other as shown in fig. 5 a.

Optionally, the circuit board C1 is arranged below the mark hole H1 in a strip shape; the light source bodies are a plurality of groups of LEDs, are arranged on one side of the circuit board C1 facing the light guide plate P1 and respectively correspond to each part in the light guide plate P1. Each light guide plate P1 may correspond to one or more groups of LED lamp beads.

As shown in fig. 2 and 3, in the signboard lamp panel in some embodiments, the light guide plate P1 covers the inside of the cover FC1 and extends to a position (outer) larger than the outline of the corresponding signboard pattern/signboard hole H1.

The lower end part of the light guide plate P1 is respectively provided with a plurality of concave light inlets for respectively accommodating a plurality of groups of LEDs; wherein the light inlet is not through/through the sign board.

Optionally, in some embodiments of the sign light panel, the light guide plate P1 is combined with/integrated with the face cover FC1 inside the face cover FC 1; a portion of the light guide plate P1 covering the flag hole H1 is exposed to the outside of the face cover FC1 through the flag hole H1, or to the outside (i.e., outside the entire flag lamp) through the flag hole H1.

Optionally, in the sign light panel in some embodiments, the light guide plate P1 covers or wraps the inner Edge/Edge 1 of the sign hole H1, as shown in fig. 4a, or partially/partially wraps or covers the face cover FC1 along the sign pattern/sign hole H1.

Optionally, in the sign light panel in some embodiments, the portion PR1 of the light guide plate P1 covering the sign hole H1 (or corresponding to the sign hole) protrudes outward through the sign hole H1.

Optionally, in the sign lamp panel in some embodiments, the portion PR1 of the light guide plate P1 protruding beyond the sign hole H1 extends/expands to the periphery of the sign hole H1 to form an extension EX1, and the dimension of the protruding portion PR1 with the extension EX1 is larger than that of the sign hole H1, as shown in fig. 4 a. Therefore, the edge of the logo hole H1 is engaged with the inner and outer portions of the light guide plate P1 (or the light guide portion P1') in the logo hole H1.

Optionally, in the sign light panel in some embodiments, the portion PR1 of the light guide plate P1 protruding out of the sign hole H1 forms a sign pattern, and the optical surface OS1 of the protruding portion PR1 exposed to the outside of the housing or the luminaire forms distributed light guide points thereon.

Optionally, in some embodiments of the sign light panel, the light guide plate P1 is made of one or more of subgrid material, polycarbonate plastic and polystyrene plastic, and is injection molded in the sign hole H1 and the inner wall of the face cover FC1, and the face cover FC1 is a stainless steel face cover FC 1. In some embodiments of the utility model, through the characteristics of plastic deformation and the like, the light-transmitting part/light-transmitting plate can form a mechanism for coating a metal lamp panel, and the integrated coating structure reduces the number of independent parts in the lamp and the complexity of assembly among the independent parts, and improves the overall assembly performance of the lamp.

In other embodiments there is also provided an emergency sign light fixture including the sign light panel of any of the embodiments of the present invention.

Optionally, the emergency sign light of some embodiments further comprises: a power supply line W1 and a rear cover BC1 fitted with the face cover FC 1; the front cover FC1 and the rear cover BC1 are connected to each other along the periphery of the light guide plate to accommodate at least one light guide plate P1 and a circuit board C1 therein, and the power line W1 is connected to the circuit board C1 to supply power thereto.

Optionally, some emergency sign light fixtures further include a reflective sheet interposed between the at least one light guide plate P1 and the rear cover BC1, and attached to the at least one light guide plate P1.

Fig. 5a is a schematic structural view illustrating a light guide plate having a plurality of sub light guide plates in a sign light panel according to an embodiment. Figure 5b shows an enlarged side view of Local2 of the light guide plate of figure 5 a. Fig. 5c shows a schematic view of the overall outline (outline) of the light guide plate in fig. 5a in the left-hand direction. The structural relationship between the plurality of sub light guide plates and the structural relationship between the light guide plate and the case as the face cover will be described in detail with reference to fig. 5b, 5c, 5a, 4a, and 4 b.

As shown in FIG. 5a, the light guide plate in this embodiment includes three parts, or 3 sub-light guide plates P1-1, P1-2, P1-3. The three sub light guide plates may be independent of each other as shown in fig. 2, or may be connected to each other as one body as shown in fig. 5 a. The light guide plates P1-1, P1-2, P1-3 extend away from the LED lamp beads (not shown in the figure) in the light inlet LEDHole1, and optionally, the thickness of the light guide plates P1-1, P1-2, P1-3 gradually decreases with the extension in the direction a 2. From another perspective, this means: the parts of the light guide plates P1-1, P1-2 and P1-3, which are farther away from the LED lamp beads, have smaller thickness. Thus, overall, the outline of the light guide plate in the side view direction may have a right trapezoid shape as shown in fig. 5c, for example, the thickness of the lower base of the right trapezoid light guide plate may be 2mm and gradually become thinner until the thickness of the upper base is 0.8 mm. Of course, assuming here that the light source body is located below the sign hole outline of the luminaire, if the light source body is located above the sign hole outline, the upper base of the right trapezoid is longer and the lower base is shorter.

In addition, distributed light guide points GP1 are formed on the optical surfaces OS1 of the light guide parts/light guide plates P1-1, P1-2 and P1-3 which protrude out of the mark holes. Or, distributed light guide points GP1 are formed on the optical surfaces OS1 exposed to the outside through the mark holes on the light guide parts/light guide plates P1-1, P1-2, and P1-3. Optionally, the light guiding points GP1 distributed on the optical surface OS1 gradually increase in size as they are located away from the light source body. This means that: the farther away from the LED bead, the light guide point GP1 on optical surface OS1 has a larger dimension, such as diameter or area.

From another perspective, the thickness of the portion of the light guide plate P1-1, P1-2, P1-3 covering the logo holes gradually decreases with the distance from the light source body, or the thickness of the portion of the light guide plate decreases from the first end T11 to the opposite second end T22, the first end T11 is optically connected to the LED lamp beads on the circuit board below the logo holes, and the second end T22 extends to the upper side of the logo holes. The size of the light guiding point GP1 on the optical surface OS1 of the light guiding part/light guiding plate increases with the decreasing thickness of the light guiding plate, that is, for the light guiding point GP1 on the optical surface OS1, the smaller the thickness of the light guiding plate at the position where the light guiding point GP1 is located, the larger the size of the light guiding point GP1 is, as shown in fig. 5c and 5d, the light guiding point GP1 of the portion with larger thickness (close to the first end T11 in the figure) is smaller, and the light guiding point GP1 of the portion with smaller thickness (close to the second end T22 in the figure) is larger, as indicated by the Local3 of the light guiding plate protruding in the mark hole.

Through the a) size that adjusts the leaded light point along with the change of the distance of leaded light point and LED lamp pearl in above-mentioned embodiment, perhaps b) the thickness of each part on the light guide plate is inversely proportional with the interval of each part light guide plate and LED lamp pearl, this writing hand section all can make on light guide plate P1-1, P1-2, P1-3 apart from the position that the light source body is farther, through bigger leaded light point or thinner light guide plate to the outer stronger light of emittance, this has compensatied to a certain extent: the light in the light guide plate is attenuated as the distance from the light source body increases, which makes the light intensity/brightness of the entire light guide plate emitted to the outside through the optical surfaces in the index holes more uniform.

Further optionally, in some embodiments of the sign light panel or the fire emergency sign light, 1) the light guide plates P1-1, P1-2, P1-3 and 2) the sign hole or the inner wall of the housing (not shown in the figure) may be covered or wrapped. Taking the light guide plates P1-1, P1-2, P1-3 and the inner wall of the housing as an example, if the light guide plate covers the inner wall of the housing, the housing is generally compounded on the light guide plate by plastic deformation of the light-transmitting plastic material of the light guide plate, and the light guide plate and the housing are integrally molded to form a covering structure, which has strong mechanical strength and does not need to be adhered by glue. If the case covers the light guide plates P1-1, P1-2, and P1-3, this means, in one aspect: the casing with on its inner wall contact light guide plate surface, it can also obtain more stable relative fixed through modes such as glue adhesion, bolted connection not to exclude between the two. The covering and covering structure relationship between the light guide plate and the mark hole is similar to that, and is not described in detail. In addition, when the light guide plate/light guide portion has a portion PR1 "protruding into or out of the index hole" the portion PR1 of the light guide portions P1-1, P1-2, and P1-3 protruding out of the housing may be extended to the periphery of the index hole by a heat treatment method, high temperature, press working, or the like to form an extended portion EX 1. Thus, the edges of the logo openings are clamped by the light guide part/light guide plate at the inner and outer portions of the logo openings, see fig. 4a, 4 b.

In addition, although the light guide plate P1 is used to cover the sign hole or the inner wall of the housing in some embodiments of the present application, in these embodiments, the light guide plate P1 may also cover the sign hole or the inner wall of the housing by means of gluing or the like. In other words, in the embodiment in which the cladding structure is applied between the light guide plate P1 and the sign hole or the inner wall of the housing, the cladding structure may be replaced by the cladding structure between the light guide plate P1 and the sign hole or the inner wall of the housing. For these modifications, detailed descriptions thereof are omitted.

There are technical prejudices in general for the person skilled in the art: the emergency sign light has to have a housing, which may be formed by i) a front cover and a rear cover, or ii) two front covers, or also a frame, and which structurally defines the outer contour (outline) of the emergency sign light and provides a receiving space for the components inside the sign light and serves as a frame for mounting these components inside the sign light. Correspondingly, in terms of the manufacturing method of the sign lamp, the assembly of the sign lamp is mostly manually participated, for example: various parts are prefabricated, are sequentially installed in the shell (or the shell is required to be opened first), and finally, the whole sign lamp is assembled.

The technical bias guides people to not consider the possibility of other aspects, limits the product design behavior of the technicians in the field under the existing design framework and product form, and hinders the research and development of the technical field of the emergency lighting lamp. Some embodiments of the present invention overcome this technical prejudice by those skilled in the art.

Specifically, the cladding/cover FC1 (in some embodiments the cover may be implemented as a thin "cladding layer", so the cover or also referred to as a cladding) in fig. 4a, 4b may be an aluminum film, a metal film, a stainless steel sheet, or an aluminum sheet with a thickness of 0.05mm to 0.2mm, or 0.2mm to 0.4mm, or 0.4mm to 0.6mm, 0.6mm to 0.8mm, or 0.8mm to 1mm, or more than 1mm, which is thin relative to the light guide plate P1. In addition, the coating FC1 is attached/adhered (adhered) to the first surface OS1, which is quite different from the covers of some prior art signage fixtures where the covers are larger in size and volume than the internal components/assemblies and form a relatively complete fixture housing that encloses all of the internal components/assemblies, and the internal components/assemblies are adhered to and supported by the larger covers/housings and positioned inside the housing. In the light fixture/light guide plate assembly of the present application, the opposite is true: in some embodiments of the present application, the FC1 coating is, for example, a very thin coating (e.g., aluminum film). The function of these very thin aluminum films is to allow the outgoing light on these surface(s) to exit through the hollow mark holes, and at the same time, the solid part of the cover/coating covers the light emitted from the first and second surfaces, so as to form the mark pattern, the structural feature of "the coating or the cover is attached/covered on the first surface OS 1" in the related embodiment means: the cladding/cover is supported and positioned by the light guide plate. Therefore, the design scheme of the sign lamp in the prior art is substantially reconstructed and is not comparable to the lamp scheme in the prior art. Although some terms of the art (e.g., housing, face cover, etc.) are used throughout some embodiments of the present application, which terms may have the conventional, general a) meaning understood by those skilled in the art or b) a structural relationship with an associated component such as a light guide plate, it should be noted that: the "cover", "housing" and "cover" in other embodiments of the present application are different from the "housing" and "cover" in the prior art in terms of functions and structural relationship with the light emitting substrate such as a light guide plate. For example, the "surface cover" of the prior art sign lamp is a cover body which is an opening of the whole housing cavity and covers the opening, and the "surface cover" in some embodiments of the present application is a covering or covering layer on the surface of the light guide plate. In these embodiments, the housing/face cover as a whole may be considered to be: is carried by the light guide plate. To the extent that the cladding/cover functions in this application scenario, although different from "mask" in the technical field such as microelectronics, etc., a little reference and analogy may be made in form/form to facilitate understanding of the structure of "cover or cladding as an adhesion layer covering/compounded on a substrate (light guide plate)" in some embodiments of the present application: the cover/cladding is attached to the light guide plate or the light guide plate is attached (with) the cladding/cover.

The coating may be implemented as a metal coating or a plastic coating, etc. And the thickness of the light guide plate layer is as follows: 0.5mm-1mm, 1mm-2mm, 2mm-3mm, 3mm-4mm, 4mm-5mm, or more than 5 mm; in combination with the thickness of the above-mentioned cladding, the light guide plate thickness is generally greater.

Furthermore, the first cover layer/surface cover and the second cover layer/surface cover are connected to each other around the periphery of the light transmissive plate/light source plate, so as to form a closed structure (package) for the plate body of the light transmissive plate, and the closed structure is mainly used to close the light emitting path of the light transmissive plate and protect the light transmissive plate and the appearance. Also, the portion where the first cover layer and the second cover layer are bonded to each other is not limited to be immediately adjacent to the periphery of the light guide plate, i.e., a certain space may be left between the "bonding portion of the cover layers on both surfaces of the light guide plate" and the "periphery of the light guide plate". In addition, the panel in some embodiments may also be regarded as a panel cover assembly, including a panel cover, a part of or all of the light guide plate, and the like, which are not described in detail.

In the prior art, the housing formed by the cover serves as a frame of the whole lamp for mounting the internal components, the volume/volume of the housing is larger than the light guide plate and fully surrounds/wraps the light guide plate and the components therein, which may require that the housing/casing serving as a cavity is firstly opened during assembly and maintenance, and then the internal components/assemblies are mounted/replaced from the housing, while in some embodiments of the present application, the cover/coating covers the light guide plate/light guide plate, in this case, actually, as a whole from the technical solution, a) the light guide plate itself, or b) the combination of the light guide plate and the back cover (if the back cover is present), already constitutes a mechanical frame (architecture) of the whole lamp, which is the case of "the cover/coating is positioned and mounted on the outer surface of the light guide plate", rather than as in the prior art: the light guide plate is positioned and mounted inside the face cover from inside the case, and in this case of the prior art, the light guide plate is assembled (assembled) on the housing frame.

Further, if plastic deformation of the light guide plate is utilized, the surface cover can also be pressed/coated on the outer surface of the light guide plate, and has more stable mechanical strength, and in this case, it can also be understood that: the light guide plate covers (the inside of) the cover. The structure is greatly different from the lamp structure in the prior art, glue or connecting pieces are not needed in combination between the structure and the lamp structure, and the lamp can be assembled only by wrapping one or two coating layers on the light guide plate P1 by utilizing the plastic deformation of the light guide plate, so that the automatic assembly of the whole process is supported, and therefore, the assembly performance of the emergency lighting lamp is greatly improved by the design structure.

It should be understood that: in some embodiments, although reference is also made to "light guide plate, light transmission plate, light guide portion cover (inside)", etc. for convenience of description, these descriptions mean, according to the above-described principle analysis: the "surface cover/coating layer covers (the surface of) the light guide plate, the light transmitting plate, and the light guide portion".

And if it is described that "a coats B" and "B coats a", it means that: b is composited (connected) with a by plastic deformation of a or the like, in a sense that it belongs to one of the structural relations of "B covers a".

In some embodiments of the utility model, the plastic deformation of the material is utilized to form an integrated structure of the light-transmitting part/light guide plate coating the lamp surface cover, so that the number of independent parts in the lamp and the assembly complexity among the independent parts are reduced, the assembly links such as glue adhesion aiming at the stainless steel surface cover are avoided, and the assembly performance of the whole lamp is improved.

In some embodiments, if the light source board assembly/sign light includes only one face cover, such as a first face cover, the first face cover may cooperate with the back cover to sandwich the light source board/light guide board. If the light source board assembly includes two covers, such as a first cover and a second cover, the first cover and the second cover may be engaged with each other and attached/pressed on the first surface and the second surface from two sides of the light guide plate, respectively, and if the first cover and the second cover are connected to each other around the periphery of the light guide plate, an enclosure (enclosure) structure (except for the mark holes) for the board body of the light source board/the light guide plate may be formed, and if the first cover and the second cover have an area smaller than that of the light guide plate, the first cover and the second cover are only attached/pressed on two surfaces of the light guide plate, so that the light guide plate/the light source board may externally present the mark pattern through the mark holes on the covers, and for this case, it may be understood that the light guide plate/the light source board is sandwiched (sandwich) between the two covers.

Here, it should be understood that: if a) the face cover/cladding and b) the surface of the light guide plate (or light source plate) are interconnected by gluing or other connectors, a "covered" structural relationship of the face cover to the first/second surface of the light guide plate is formed. If the surface cover is pressed on the light guide plate by plastic deformation of the plastic material of the light guide plate/light source plate, a more firm covering structural relationship of the light guide plate to the surface cover is further formed between the two, namely: "coating".

It should be noted that the light source board in some embodiments refers to a board body through which light can be emitted through a surface thereof, and the light source board may be implemented as: a light guide plate. The light exiting through the surface of the light source plate may a) be caused by its own self-luminous properties, for example, the light source plate may be made of a self-luminous material, or b) the light source plate may serve as a light guiding medium to conduct the light emitted by other light sources to the first and second surfaces thereof. In the case of b), the light source plate is a light guide plate, and is named as "light guide", but the "light guide plate" is not limited to have only light guide properties, and for example, the light guide plate may have light transmission properties to the outside of the sign hole at the sign hole on the face cover. For the case a) above, the light source plate may be a light guide plate. The light source board can also have both light guiding property and light transmitting property.

Under the condition that the light guide plate has self-luminous performance, the light rays transmitted out of the light guide plate can be emitted out through the mark holes on the surface cover to form a mark pattern. The (enable) lamp can display the mark pattern to the outside without additional electric energy or with little electric energy. The structure of the whole lamp is simplified to a great extent, the manufacturability and the energy saving performance of the lamp are improved, and the failure rate of the lamp is reduced due to the extremely simple design structure. Therefore, a) if the light-transmitting plastic has the light-guiding capability, the light-transmitting plastic can be matched with a simple LED light source to form a complete sign lamp, or b) if the light-transmitting plastic or the light-transmitting plastic has the self-luminous capability because of being doped with other self-luminous materials, other additional light sources are not needed, therefore, sign patterns can be displayed outside through the sign holes on the aluminum film covered on the outer surface of the light guide plate, and the light guide plate can be used as a fire-fighting emergency sign lamp to replace the lamp with a complex structure in the prior art.

Therefore, after the light source board has the attributes, the surface of the light source board is covered by the first surface cover and/or the second surface cover, the mark holes in any shape can be formed in the surface covers according to requirements, light rays emitted by the light source board can present mark patterns in corresponding shapes through the mark holes, and therefore the patterns presented by the mark lamp can be customized by stamping the aluminum surface cover. This greatly improves the flexibility of saving materials in the manufacturing environment and also improves the manufacturability of the sign light fixture. The customized mark hole is formed on the surface cover and then covers the light source plate, so that the whole lamp can be basically assembled, the process can be completed through an automatic means without depending on manual operation, and the assembling performance of the lamp is improved due to the structural design. If the light source plate forms a coating structure for the front cover, the mechanical strength between the light source plate and the front cover is higher, the structure of the sign front cover and the structure of the lamp are simplified, the mechanical strength is improved, and the failure rate is reduced.

In some fire emergency sign lamps, the protrusions of the sign pattern protrude into the sign holes of the front cover, and form a light guide plate or a light source plate (hereinafter, some embodiments may be simply referred to as "light guide plate") capable of displaying on one side or on both sides, and a fire emergency sign lamp. The mark pattern is a part integrally connected with the light guide plate, and forms a protruding part on one or two (side) surfaces of the light guide plate, the protruding direction of the protruding part is different from the main extending direction of the light guide plate main body, for example, the protruding part has an included angle of about 90 degrees, so that the light guide plate main body part and the protruding mark pattern part are integrally formed by the same material, the two parts jointly define (define) a bent light propagation path, and the mark pattern as the protruding part is integrally formed by extending the light guide plate main body, so that the bent light conduction path is continuous and uninterrupted, which can be understood as that the light source plate has both light guiding property and light transmitting property in some embodiments, and the conduction/transmission performance of light is improved, for example, the light in the light guide plate main body part can be smoothly and smoothly transmitted through the light conduction path, Low loss conduction to the mark pattern. Furthermore, the integral extension structure of the logo patterns on the light guide plate body also simplifies the structure of the light guide plate in the logo lamp, so that the light guide plate with the simple structure is convenient to be integrally processed and manufactured by plastic deformation of the material thereof, and the assembly property of the logo lamp and the manufacturability of the light guide plate in the logo lamp are improved.

Through the size (diameter for example) that the leaded light point adjusted the leaded light point along with its change with the distance of the light source body such as the circuit board that has LED, can make the position farther apart from the light source body on the light guide plate, through bigger light guide point to the external stronger light of emittings, this has compensatied to a certain extent: the light in the light guide plate attenuates as the distance from the light source body increases, which makes the light intensity emitted from the entire light guide plate to the outside through the optical surfaces in the index holes more uniform.

In some embodiments, the light guide plate protrudes into the mark hole at a portion covering the mark hole, or protrudes out of the housing through the mark hole, that is, one side of the light guide plate facing the mark hole is not a plane but has a protrusion adapted to the mark hole, the protrusion and the main body of the light guide plate are integrally formed by plastic deformation of the light guide plate at high temperature, during the installation of the lamp, the protrusion can be directly buckled into the mark hole on the surface cover/housing, and the light guide plate and the surface cover are connected by gluing, which also reduces the number of components of the lamp or the surface cover of the marker lamp, simplifies the structure, and enhances the assembly. Certainly, from another perspective, in other embodiments, the light guide plate may also be regarded as being formed by covering/wrapping the light guide portion in the sign hole on the inner wall of the face cover or the housing and extending along the inner wall of the face cover/the housing to the outline (outline) of the sign hole.

Optionally, the mark hole H1 is aligned with the mark pattern Pat1 on the light guide plate P1 to position the first cover on the first surface or the second cover on the second surface. The logo pattern Pat1 can be defined by a raised portion on the first surface or by a specific shape of light guide points distributed on the first surface. Specifically, taking the first surface and the first cover as an example, when the first surface can be a) entirely distributed with light guiding points, as shown in fig. 5d (assuming that fig. 5d shows the whole first surface of the light guiding plate), or b) only locally distributed with light guiding points (not shown in the figure) in the region of the logo pattern shape, in the latter case the light guiding points are distributed only in the region of the logo pattern shape on the first surface, i.e. the light guiding points distributed in this part of the "specific region" define the logo pattern Pat1, the "specific region" of the logo pattern shape is not limited to be raised from the first surface, and it can be flat (flat). When the first cover covers the first surface, the marking holes H1 are needed to be aligned with the marking patterns Pat1 on the light guide plate P1, so that the first cover can be positioned on the first surface.

Of course, in the case of a), the "overall distribution" does not mean that the light guide points are distributed on the first surface 100% of the total area, and may be distributed over only 80% of the area where the logo pattern is necessarily and possibly displayed, but the area where 80% of the light guide points are distributed may not exactly form a logo pattern, and may form an outer contour of, for example, a substantially rectangular, square or circular shape on the surface of the light guide plate, and the distribution contour of the light guide points corresponds to and coincides with the approximate contour Outline109 of the logo hole H1, as shown in fig. 3. When the face cover with the mark holes covers the first surface, the whole lamp can present the mark pattern to the outside through the mark holes due to the shape of the mark pattern.

In summary, the "light guide points distributed on the first surface" may be the whole light guide points distributed in a) or the local light guide points distributed in b), and in the case of b), when the light guide points are distributed in the "specific area" with the outline in the shape of the logo pattern, the "specific area" may form the logo pattern in a plane, that is, the specific area does not protrude from the first plane but is defined by the light guide points distributed above (define) the position and shape of the specific area, or protrudes from the first surface to form the protruding logo pattern (of course, the light guide points are also distributed on the logo pattern), which is more convenient: when the first face cover and the first surface are mutually compounded/attached by gluing/gluewater, the first face cover can be aligned to the mark pattern through the mark hole, so that the first face cover is positioned and attached on the first surface. However, the "distribution of light guide points" in some implementations of the present application includes at least the following three cases: the light guide points may be a) distributed in the shape of a logo pattern on the first surface, or B) distributed in the shape of an outline of the logo pattern on the first surface, or C) directly distributed on the logo pattern formed in a protruding manner. In the above-mentioned scheme a), a marker pattern is actually defined by the light guide points distributed on the first surface, so that the marker pattern is formed in a plane (this means: a planar logo pattern is formed on the first surface by the light guide dots). And C) the scheme can be regarded as that the light guide point and the convex part on the first surface jointly define a mark pattern; and B) the scheme does not accurately define a mark pattern on the first surface, but only defines a rough outline, and after the first surface cover is compounded to the first surface, the mark pattern is defined by the mark holes hollowed out on the surface cover. Of course, the "distribution of light guide points" in the practice of the present application also includes D) an overall distribution on the first surface, where the area of the cover (cover) included in the overall distribution includes B) the outline area of the logo pattern in the solution, but may exceed this area until the light guide points are all spread over the first surface. The composite structure between the second surface cover and the second surface and the distribution of the light guide points on the second surface are similar to the above, and are not repeated. In addition, the light guide points can be formed by silk screen printing, injection molding or laser dotting. The light guide points are exposed along the mark holes, and may include "all of the light guide points are exposed along the mark holes" or "only a part of the light guide points are exposed along the mark holes". Generally, after the first surface cover is covered on the first surface, the mark holes are distributed with light guide points on the externally exposed areas of the first surface in a 'frame selection' mode, and therefore, the effect of the lamp on the externally luminous mark is better. Of course, when the light guide plate/the light transmission plate is made of self-luminous materials, light guide points are basically not needed, and the whole lamp can show better mark patterns outwards.

If the first surface is fully distributed with the light guide points, the mark pattern presented by the lamp to the outside is determined by the shape of the mark hole, namely the mark hole with which shape is provided on the surface cover, and finally the mark pattern with which shape is presented by the lamp to the outside. This improves the versatility of the cover stock for the manufacture of sign luminaires in diverse patterns and/or the flexible customizability of the sign luminaire patterns, compared to the embodiment "defining one sign pattern with light guiding points on the first surface in advance".

The light-transmitting plate and the light guide plate can be collectively called as a light source plate, the light-transmitting plate, the light guide plate and the light guide plate can have light transmission and/or light guide performance, and can be made of light-transmitting plastic, and other embodiments can be seen through the specific constitution of the light-transmitting plastic. The plate-like part of the light-transmitting plate extending along the inner wall of the cover/cladding can also be called light-guiding plate. And the part of the light guide plate protruding into the index hole on the surface cover/cladding layer may also be called light-transmitting part/light-transmitting plate.

It should be noted that the light guide plate in some embodiments refers to a plate body that can emit light through its surface. And the light exiting through the surface thereof may a) be caused by its own self-luminous property, for example, the light guide plate may be made of a self-luminous material, or b) the light guide plate serves as a light guiding medium to guide the light emitted from other light sources to the first and second surfaces thereof. In the case of b), the light guide plate is named as "light guide", but the "light guide plate" is not limited to have only light guide properties, and for example, the light guide plate may have light transmission properties to the outside of the mark hole at the mark hole on the cover. In the case of a) above, the light guide plate may be a light guide plate. The light guide plate may have both light guiding properties and one or more of light transmitting properties and self-light emitting properties.

It can be understood that: the light guide plate or the light guide plate belongs to a light source plate, and can be made of light-transmitting plastic, self-luminous plastic or light-transmitting plastic doped with self-luminous materials. This means that: in some embodiments, the light guide plate may only need light transmission performance without too strong light guiding performance, or even without any light guiding performance, and in addition, a circuit board with LED light sources is not necessary for the light fixture or light guide plate assembly in these embodiments. In view of this, the "light guide plate" in the solution of any embodiment of the present application may be literally replaced by the "light guide plate" or the "light source plate", so as to form more diversified modifications, which may not be repeated herein. The "light guide plate" or the "light source plate" may each have one or more of a light guiding property, a light transmitting property, and a self-light emitting property.

Of course, the cladding/cover in the embodiments of the present application is not limited to metal, but may be other materials suitable for being punched in a thin plate form, such as plastic plates/cladding of PVC, PE, and the like.

Of course, the cladding/cover in the embodiments of the present application is not limited to metal, but may be other materials suitable for being punched in a thin plate form, such as plastic plates/cladding of PVC, PE, and the like. Moreover, the first surface and the second surface of the light guide plate can be kept flat (flat), a protruding mark pattern does not need to be formed at the mark hole, and the whole lamp can also have the effect of presenting the mark pattern to the outside as long as the thicknesses of the first surface cover (or the first cladding layer) and the second surface cover (or the second cladding layer) are thinner.

Those skilled in the art will understand that: a "composite" structure is a bonded structure, or connection, between two plate-like or clad-like objects by means of an adhesive film, glue, coating, hot-melt adhesive/plastic deformation, or the like. Further, "compounding" may also include: A. b are pressed/laminated together by mechanical pressure alone, and other combinations known to those skilled in the art.

The structure of "covering" is not limited to "composite", but also includes, but is not limited to: A. b are in stacked relation by bolting, etc., and A, B are in contact/non-contact structural relation in a stacked manner.

In addition, some embodiments in the present application only use one or several structural relationships such as "composite", "covering", and "coating" as examples to describe the related schemes, and it should be understood that: for the sake of brevity, in fact, in the embodiment of one of the structural relationships of "composite", "covering", "laminating", "attaching", "stacking", and the like, which are used between any related components/modules in the present application, the structural relationship that is schematically selected may be literally replaced by one of other structural relationships, so as to generate more diversified variations with different related ranges. In addition, for the sake of brevity, the related art will be described by taking only "coating" as an example in some embodiments, but the "coating" in these embodiments may be literally replaced by "cover" and vice versa, thereby generating more diversified variations involved.

In some embodiments, face cover/cladding FC1 (or cladding only as exemplified below) may comprise a plastic cladding. Further, the coating FC1 may also include both a plastic coating laminated to the first surface and a light blocking film (or simply: film in other embodiments) applied to the outer surface of the plastic coating.

Optionally, the coating/cover is substantially or completely opaque to light.

"substantially opaque" of the coating/face cover in some embodiments means: the coating/face cap has a light transmission of less than 20%, less than 10%, less than 30%, or less than 5%, or the coating has a light transmission of 0.

Optionally, cladding FC1 includes a light blocking film layer applied directly to the first surface of the light source board but does not include a plastic cladding layer.

Further optionally, the light source plate comprises a light guide plate or a light transmissive plate. And, the film can be implemented as a metal ink layer/a transferred opaque film layer (e.g., ink layer, metal ink layer, etc.). Therefore, aiming at one side of the light source plate, because of the light-tight characteristic of the light-blocking film layer, the light in the light source plate can be prevented from forming redundant external scattering, so that the internal light intensity and the brightness of the mark pattern are reduced, and for the outside of the mark lamp, the metal texture can be formed by means of the metal ink layer, the attractiveness of the lamp is enhanced, or the luminous effect/visual effect of the mark pattern is improved by the contrast of the consistent metal luster on the coating layer and the mark pattern. Moreover, in the case of the coating FC1 being implemented as a film, the overall thickness of the coating FC1 is relatively thin, e.g. less than 0.05mm, even less than 0.01mm, which is a relatively compact and low weight lamp construction. In such embodiment(s), the emergency signage lamp does not have a face cover or housing in the conventional sense, but rather, only one light source sheet itself can form the entire body of the lamp, covered on its outer surface with a film (i.e., an extremely thin coating) and having openings in the shape of a signage pattern formed in the film, thereby forming a relatively complete signage lamp. Of course, to further maintain the light transmitted in the light source board, a reflective layer may be disposed between the first surface of the light source board and the light blocking film layer to reflect light from the inside of the light source board, and the light blocking film layer is coated on the reflective layer, so that the cladding FC1 actually includes the reflective layer and the light blocking film layer combined together.

Of course, those skilled in the art will understand that: the film layer may be independently coated (coated) on the first surface, or may be coated, covered or formed on the first surface in a composite connection/integral connection manner through processes such as a) silk-screen printing of a material such as a metal ink, b) two-color injection molding or c) laser processing on the first surface, wherein, for example, the "film layer coated on a" may be regarded as a structure between the "film layer" and a, that is, the "film layer" is formed/applied to (applied to) a. The structural relationship of "coating" is formed by the above-mentioned process, and printing methods such as screen printing, (thermal) transfer printing, ink-jet printing, and laser printing can be considered as one of the coating methods. Meanwhile, "film layer, applied to a" does not mean that "a" or its surface must be 100% covered by the film layer.

In addition, the logo pattern Pat1 may be a) a plane pattern defined by light guide dots and/or logo holes on the first surface (i.e.: substantially no protrusions PR1) or b) a relief pattern protruding from the first surface. It should be understood that: the solid pattern is formed on the first surface OS1 of the light source board integrally with respect to the protrusions, which does not mean that each point on the solid pattern is protruded on the first surface, that is, a local area on the solid pattern may not be protruded on the first surface. Also, neither of the a) optical surface of the solid pattern, b) the first surface of the light source board is limited to absolute flat (flat).

Further alternatively, the flag hole H1 is an optical through hole, which means that the flag hole H1 optically penetrates the cladding FC1, and is not limited to a physical penetrating structure. The optical aperture can also be formed in the corresponding location of the cladding, for example, using some transparent material, but in this case, the flag hole H1 in the cladding FC1 is not physically through-connected, but rather retains its transparent, light-transmissive properties. In popular terms: the logo apertures remain light transmissive but are not necessarily "breathable". Accordingly, the surface of the light guide plate/light source plate is "exposed to the outside" through the logo hole on the face cover/cladding, also referred to as "optical exposure", without being limited to being physically through exposed. The sign lamp or the manufacturing method thereof of some embodiments in the present application is described by taking a fire emergency sign lamp as an example, but it should be understood that the scope of protection of the present application is not limited to the fire emergency sign lamp, and can also be applied to other emergency sign lamps. Further, most of the embodiments are described with reference to the light guide plate assembly and the lamp thereof, but it should be understood that the light guide plate assembly and the light guide plate therein are not limited to a flat plate body such as a square or a circle (for example, a shape of a more standard/regular rectangular parallelepiped, a flat cylinder, etc.), and the light guide plate assembly and the light guide plate may also be implemented in the form of a polyhedron, an ellipsoid, a sphere, a prism surface, etc. which are formed by one light guide plate being curvedly enclosed or by several sub light guide plates being collectively enclosed.

[ group 5 alternative example ]

Embodiment 1. a fire emergency sign lamp, characterized by, includes:

a housing provided with a mark hole;

and the light guide part covers the inner side of the shell, protrudes into the mark hole and extends along the inner wall of the shell from the mark hole.

2. The fire emergency sign light of embodiment 1, wherein the light guide part partially extends to form a light guide plate to optically connect the light source body.

3. The fire emergency signage light fixture of embodiment 2, further comprising: the light source body is arranged on the circuit board;

the circuit board is positioned at the periphery of the outline of the mark hole, and the light source body is optically connected with the end part of the light guide plate;

and a plurality of sub light guide plates formed on the inner wall of the case, respectively, the plurality of sub light guide plates being independent of each other or integrally connected to each other.

4. The fire emergency sign light of embodiment 3, wherein,

the circuit board is strip-shaped and is arranged below/below the mark hole;

the light source body comprises a plurality of groups of LEDs, is arranged on the circuit board along the strip shape and respectively corresponds to different sub light guide plates in the plurality of sub light guide plates;

the plurality of sub light guide plates are respectively optically connected with the plurality of groups of LEDs.

5. The fire emergency sign lamp according to embodiment 4, wherein an upper end portion or a lower end portion of each of the plurality of sub light guide plates is recessed inward to form at least one penetrating/non-penetrating light inlet to accommodate a spatially corresponding one of the plurality of groups of LEDs.

6. The fire emergency sign light of any one of embodiments 1-5, wherein a) the light guide plate covers/envelopes the sign hole edge, or,

b) the light guide plate is attached to/wraps the shell along the mark hole or the edge of the mark hole.

7. According to the fire emergency sign lamp of embodiment 6, the light guide part protrudes from the sign hole to the outside of the housing, the sign hole is formed in the shape of a sign pattern, and the part of the light guide part protruding out of the sign hole forms the sign pattern;

I) the light guide part is arranged on the optical surface which protrudes out of the mark hole, or II) the light guide part is arranged on the optical surface which is exposed out of the mark hole, so that light guide points distributed in the mark pattern are formed.

8. The fire emergency sign light of embodiment 7, wherein a portion of the lightguide protruding out of the sign hole expands toward a perimeter of the sign hole such that: a) the edge of the mark hole is clamped with the light guide part, or is clamped between i) the part of the light guide part, which protrudes out of the shell, and ii) the light guide plate.

9. The fire emergency signage light fixture of embodiment 8, further comprising: a power supply line, and the case further includes i) two face covers, or ii) a face cover and a rear cover, which are connected to each other along a circumference of the light guide plate; the mark hole is arranged on the face cover;

the power cord is connected to the circuit board within the housing to provide power thereto; the surface cover is a stainless steel surface cover.

10. The fire emergency sign light of embodiment 9, wherein the light guide portion and/or the light guide point are injection molded in the sign hole and on the inner wall of the face cover from one of a subgrid material, polycarbonate plastic or polystyrene plastic.

11. The fire emergency sign lamp according to embodiment 10, further comprising a reflective sheet interposed between the light guide plate and the rear cover and attached to the light guide plate.

12 the fire emergency signage light of any one of embodiments 2-4, wherein a) the light guide plate has a thickness that gradually decreases as the light guide plate extends away from the light source body; or, b) the part of the light guide plate, which is farther away from the light source body, has a smaller thickness.

13. The fire emergency signage light fixture of embodiments 2-4, wherein I) the optical surface of the light guide portion protruding out of the signage hole, or II) the optical surface of the light guide portion exposed out of the signage hole forms distributed light guiding points; and

A) the size of the distributed light guide points is gradually increased along with the distance of the positions of the distributed light guide points from the light source body; or B) the light guide point farther away from the light source body has a larger size.

14. The fire emergency signage light fixture of embodiment 12, wherein I) the optical surface of the light guide portion protruding out of the signage aperture, or II) the optical surface of the light guide portion exposed out of the signage aperture forms distributed light guiding points; and

A) the size of the light guide points increases as the thickness of the light guide plate decreases, or B) the smaller the thickness of the light guide plate is, the larger the size of the light guide points is distributed.

[ group 6 alternative embodiment ]

Embodiment 1. a sign light panel, comprising:

the face cover is provided with a mark hole;

a light guide plate attached/adhered to the inner side of the face cover;

the light guide plate is provided with a mark hole, and the mark hole is arranged at the periphery of the light guide plate.

2. The marker light panel according to embodiment 1, further comprising: a circuit board;

the light source body is arranged on the circuit board; the circuit board and the light guide plate are relatively fixed at the periphery of the mark hole.

3. The sign lamp panel according to embodiment 2, wherein the sign hole has a shape of a sign pattern, and the light guide plate includes a plurality of portions respectively covering different portions of the sign hole; and the number of the first and second groups,

the plurality of portions of the light guide plate are independent from each other or are connected as one body.

4. The sign light panel according to embodiment 3, wherein the circuit board is disposed in a bar shape below/above the sign hole;

the light source body is a plurality of groups of LEDs, is arranged on one side of the circuit board facing the light guide plate and respectively corresponds to each part of the plurality of parts of the light guide plate.

5. The sign light panel of embodiment 4, wherein the light guide plate extends inside the face cover beyond the outline of the sign hole;

a plurality of inwards concave light inlets are formed in the end part of the light guide plate and are used for accommodating the plurality of groups of LEDs respectively; wherein the light inlet is not through/through the light guide plate.

6. The sign light panel of embodiment 5, wherein the light guide plate is integrated with the face cover inside the face cover; the light guide plate is covered with the mark hole, and is exposed to the outside through the mark hole.

7. The signage panel of any one of embodiments 1-6, wherein the light guide panel a) wraps/covers the signage hole edges or b) wraps/conforms the face cover along the signage holes.

8. The sign light panel of embodiment 7 wherein a) the light guide plate has a thickness that decreases as the light guide plate extends away from the light source body; or, b) the part of the light guide plate, which is farther away from the light source body, has a smaller thickness.

9. The sign light panel of embodiment 7, wherein a portion of the light guide plate covering the sign hole protrudes outward through the sign hole.

10. The marker light panel according to embodiment 9, wherein a portion of the light guide plate protruding beyond the marker hole is expanded toward the periphery of the marker hole so as to have a dimension larger than that of the marker hole; the edge of the mark hole is clamped at the inner part and the outer part of the light guide plate in the mark hole.

The signage panel of embodiment 8, wherein the signage holes have a shape of a signage pattern, the portion of the light guide plate exposed to the outside of the signage holes forms the signage pattern, and light guide points are distributed on the signage pattern.

12. The marker light panel according to embodiment 11, wherein the size of the light guide point increases as the position thereof is away from the light source body; or

The light guide point, which is farther from the light source body, has a larger size.

13. The marker light panel of embodiment 11 wherein the size of the light guide point increases as the thickness of the light guide plate decreases, or

The smaller the thickness of the light guide plate is, the larger the size of the light guide points is distributed.

14. The signage panel of embodiment 12, wherein the light guide plate is injection molded in the signage holes and the inner wall of the face cover from one or more of a subgrid material, a polycarbonate plastic, and a polystyrene plastic, and the face cover is a stainless steel face cover.

15. A fire emergency sign light fixture comprising a marker light panel according to any one of embodiments 1-14.

16. The fire emergency sign light of embodiment 15, further comprising: the power line and the rear cover are matched with the face cover;

the surface cover and the rear cover are connected with each other along the periphery of the light guide plate so as to enclose the light guide plate and the circuit board, and the power line is connected to the circuit board to supply power to the circuit board.

17. The fire emergency sign lamp of embodiment 16, further comprising a reflective sheet interposed between the light guide plate and the rear cover, attached to the light guide plate.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Spatially relative terms, such as "above … …," "above … …," "above … … surface," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in other sequences than those illustrated or described herein.

The present invention has been described in terms of the preferred embodiment, and it is not intended to be limited to the embodiment. Any modification, equivalent replacement, or improvement made without departing from the spirit and principle of the present invention shall fall within the protection scope of the present invention.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, so that various optional technical features can be combined with other embodiments in any reasonable manner, and the contents among the embodiments and under various headings can be combined in any reasonable manner. Each embodiment is described with emphasis on differences from the other embodiments. In particular, as for the system embodiment, since it is substantially similar to the method embodiment, the description is relatively simple, and reference may be made to the partial description of the method embodiment for relevant points.

The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise, and "a plurality" typically includes at least two. It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

While specific embodiments of the present application have been described above, it will be understood by those skilled in the art that this is by way of illustration only, and that the scope of the present application is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the principles and spirit of this application, and these changes and modifications are intended to be included within the scope of this application.

Claims

1. An identification light panel, comprising:

a light guide plate having a first surface;

2. The sign light panel according to claim 1, wherein a portion of the first surface exposed to the outside of the sign hole forms a concave/planar/convex sign pattern and has light guide points distributed; the marking hole has the shape of the marking pattern.

3. The marker light panel of claim 2,

the part of the light guide plate corresponding to the mark hole protrudes into the mark hole;

the light guide plate is used for coating the edge of the mark hole and/or the inner side of the face cover by the first surface.

4. The sign light panel according to claim 2 or 3, wherein the light guiding dots are distributed a) in the shape of the sign pattern on the first surface, or B) in the shape of the outline of the sign pattern on the first surface, or C) in the raised sign pattern; or D) are distributed over the first surface as a whole; or alternatively

E) The first surface forms the planar mark pattern through the light guide point; F) the first surface is formed with the logo pattern planarly by the light guide point.

5. The sign light panel of claim 4,

a) the size of the light guide point is increased along with the position of the light guide point away from the light source body; or b) the size of the light guide point increases as the thickness of the light guide plate decreases; or

c) The farther the light guide point is from the light source body, the larger the size is; or d) the smaller the thickness of the light guide plate, the larger the size of the distributed light guide points.

6. The sign light panel of claim 5 further comprising said light source body;

the marker light panel further includes: a circuit board; the light source body is arranged on the circuit board; the circuit board and the light guide plate are relatively fixed at the periphery of the mark hole;

the light guide plate comprises a plurality of parts which respectively correspond to different parts of the mark hole; the plurality of parts of the light guide plate are independent of each other or connected into a whole;

the circuit board is arranged below/above the mark hole in a strip shape; the light source body is a plurality of groups of LEDs, is arranged on one side of the circuit board facing the light guide plate along the trend of the circuit board, and respectively corresponds to each part of the plurality of parts of the light guide plate.

7. The utility model provides a fire emergency sign lamps and lanterns which characterized in that: comprising a sign light panel according to claim 6.

8. A fire emergency signage light as in claim 7, wherein the face cover is a cladding having a thickness of 0.05mm to 0.2mm, 0.2mm to 0.4mm, 0.4mm to 0.6mm, 0.6mm to 0.8mm, 0.8mm to 1mm, or any one of 1mm or more and 0.05mm or less;

the thickness of the light guide plate is any one of the following values: 0.5mm-1mm, 1mm-2mm, 2mm-3mm, 3mm-4mm, 4mm-5mm, or more than 5mm and less than 0.5 mm;

I) the coating comprises: the plastic coating layer is compounded on the first surface by the inner surface of the plastic coating layer, and the light-blocking film layer is coated/covered/formed on the outer surface of the plastic coating layer; or,

II) the coating comprises: a light blocking film layer coated/covered/formed on the first surface; or

III) the coating is a metal coating or a plastic coating, and the first surface is compounded/coated with the coating;

the metal coating is an aluminum film or a stainless steel film, and the light-blocking film layer is a metal ink layer/a transfer printing film layer/an ink layer; the plastic coating is a PVC plastic plate, a PET plastic plate or a PE plastic plate.

9. A fire emergency signage light as in claim 8, wherein the portion of the signage pattern protruding beyond the signage hole extends/expands along the signage hole edge to have a dimension larger than that of the signage hole; the edge of the mark hole is clamped between i) the light guide plate inside the mark hole and ii) the mark pattern outside the mark hole; and/or

Emergent marker light utensil of fire control still includes: a rear cover covering a second surface of the light guide plate opposite to the first surface, the cover and the rear cover being connected to each other along a periphery of the light guide plate to enclose the light guide plate and the circuit board; the back cover is partially recessed toward the second surface to abut against the second surface, thereby defining a gap for wiring between the back cover and the second surface.

10. A fire emergency marker light as recited in claim 9, wherein said light guide plate extends inside said cladding beyond the outline of said marker hole;

the mark hole is an optical through hole or a physical through hole; the coating is substantially opaque;

the light guide plate is used for bearing the coating, or the coating is attached to the light guide plate; the light guide plate is optically exposed to the outside through the mark hole or a light-transmitting member therein;

a plurality of inwards concave light inlets are formed in the end part of the light guide plate and are used for accommodating the plurality of groups of LEDs respectively;

the light guide plate is integrally formed by transparent plastics, and the part of the light guide plate corresponding to/protruding into the mark hole has a light-transmitting property;

the light-transmitting plastic is one of a sub-lattice force material, polycarbonate plastic and polystyrene plastic;

a thickness of the light guide plate, a) decreases as the light guide plate extends away from the light source body; or, b) the thickness of the light guide plate is gradually reduced along the light transmission direction of the light guide plate to the light source body;

the coating has a light transmission of less than 5%.

11. The utility model provides a fire emergency sign lamps and lanterns which characterized in that: comprising a marker light panel according to any of claims 2-5.

12. A fire emergency signage light as in claim 11, wherein the face cap is a cladding having a thickness of 0.05mm to 0.2mm, 0.2mm to 0.4mm, 0.4mm to 0.6mm, 0.6mm to 0.8mm, 0.8mm to 1mm, or any one of more than 1mm and less than 0.05 mm;

II) the coating comprises: a light blocking film layer coated/covered/formed on the first surface; or alternatively

13. A fire emergency marker light fitting according to claim 12,

the circuit board is arranged below/above the mark hole in a strip shape; the light source body is a plurality of groups of LEDs, is arranged on one side of the circuit board facing the light guide plate along the trend of the circuit board and respectively corresponds to each part of the plurality of parts of the light guide plate;

the part of the mark pattern protruding out of the mark hole extends/expands along the edge of the mark hole to make the dimension of the mark pattern larger than that of the mark hole; the edge of the mark hole is clamped between i) the light guide plate inside the mark hole and ii) the mark pattern outside the mark hole; and/or

14. A fire emergency signage light as in claim 13, wherein the light guide plate extends inside the cladding beyond the outline of the signage aperture;

the coating has a light transmission of less than 5%.

15. The utility model provides a fire emergency sign lamps and lanterns which characterized in that: comprising a sign light panel according to claim 1.

16. A fire emergency signage light as in claim 15, wherein the face cap is a cladding having a thickness of 0.05mm to 0.2mm, 0.2mm to 0.4mm, 0.4mm to 0.6mm, 0.6mm to 0.8mm, 0.8mm to 1mm, or any one of more than 1mm and less than 0.05 mm;

17. A fire emergency marker light fitting according to claim 16,

the part of the first surface exposed outside the mark hole forms a concave/plane/convex mark pattern, and light guide points are distributed on the concave/plane/convex mark pattern; the marking hole has the shape of the marking pattern;

the marker light panel further includes: a circuit board; the light source body is arranged on the circuit board; the circuit board and the light guide plate are relatively fixed at the periphery of the mark hole; the light guide plate comprises a plurality of parts which respectively correspond to different parts of the mark hole; the plurality of parts of the light guide plate are independent of each other or connected into a whole; the circuit board is arranged below/above the mark hole in a strip shape; the light source body is a plurality of groups of LEDs, is arranged on one side of the circuit board facing the light guide plate along the trend of the circuit board and respectively corresponds to each part of the plurality of parts of the light guide plate;

Emergent signal light of fire control still includes: a rear cover covering a second surface of the light guide plate opposite to the first surface, the cover and the rear cover being connected to each other along a periphery of the light guide plate to enclose the light guide plate and the circuit board; the back cover is partially recessed toward the second surface to abut against the second surface, thereby defining a gap for wiring between the back cover and the second surface.

18. A fire emergency marker light as recited in claim 17, wherein said light guide plate extends inside said cladding beyond the outline of said marker hole;

the coating has a light transmission of less than 5%.