CN215895901U - Emergency sign lamp - Google Patents

Abstract

The utility model relates to the field of emergency equipment, and provides an emergency sign lamp which is characterized by comprising the following components: a light guide plate; a first case and a second case which are fastened to each other to sandwich the light guide plate therebetween; the first shell and/or the second shell are/is provided with mark holes, and the light guide plate is exposed outwards through the mark holes; and the light source body is optically connected to the middle part of the light guide plate. Therefore, the complexity of wiring in the fire emergency sign lamp is reduced, and the assembly performance of the fire emergency sign lamp is improved.

Description

Emergency sign lamp

Technical Field

The utility model relates to the field of emergency equipment, in particular to a fire-fighting emergency sign lamp.

Background

According to the fire safety requirement, a fire emergency sign lamp is required to be installed in the public building and used for fire emergency evacuation indication.

The fire emergency light is a guarantee of public place safety emergency, is the mandatory measure of public fire control, and its application range is wide, arranges the environment relatively complicated, and wherein, fire emergency marker light is installed in fire escape way department usually, when the condition such as power failure, fire alarm takes place, can turn on the light automatically and realize emergent mark function.

The traditional fire-fighting emergency marker lamp manufacturing method is formed by manually integrating and installing a plurality of plastic parts and easily-deformed metal parts by workers. And the lamp body of the emergent marker light of fire control is formed in the lock position lock that plastics made, then does not have water-proof effects basically, and when the wall infiltration, inside water can get into the lamp body, influences the lamp body life-span.

Furthermore, in traditional fire emergency marker lamp, the LED light source is usually arranged at the upper and lower end portions, or the left and right end portions, of the light guide plate, which causes the light to be attenuated to a greater extent when being conducted to the other end in the plate body, thereby affecting the light emitting effect. And if all lay LED lamp pearl at both ends, the multiterminal of light guide plate, then can improve the complexity of casing internal wiring, the adaptation power module to LED lamp pearl in traditional emergency sign lamps and lanterns will use each LED circuit board of connection of electric lines, because LED's line is very thin, links to each other through the welding moreover many times, and extremely easy disconnection drops, winds around going, shifts easily, and the fault rate is very high, leads to lamps and lanterns to be unable to carry out work.

SUMMERY OF THE UTILITY MODEL

One of the objects of the utility model is to reduce the structural complexity or wiring complexity inside the housing of a fire emergency sign light fitting.

At least for the above purposes, one embodiment of the present invention proposes an emergency sign light, comprising:

a light guide plate;

a first case and a second case which are fastened to each other to sandwich the light guide plate therebetween; the first shell and/or the second shell are/is provided with mark holes, and the light guide plate is exposed outwards through the mark holes;

and the light source body is optically connected to the middle part of the light guide plate.

Optionally, in some embodiments of the emergency sign light, the sign aperture comprises a plurality of transverse portions; the light source body is disposed between adjacent ones of the plurality of portions in a longitudinal direction.

Optionally, in the emergency sign light fixture of some embodiments, the light guide plate includes a plurality of sub light guide plates respectively corresponding to a plurality of portions of the sign hole;

the emergency sign lamp further comprises a circuit board which is in a strip shape and is longitudinally arranged between the adjacent sub light guide plates;

the light source body is a plurality of groups of LEDs and is longitudinally arranged on two sides of the circuit board.

Optionally, in the emergency sign lamp of some embodiments, the emergency sign lamp further includes an adaptive power module for the plurality of sets of LEDs, integrated on the circuit board, and respectively connected to the plurality of sets of LEDs through printed circuits on the circuit board;

a plurality of light inlets are respectively formed in two opposite end parts of two adjacent sub light guide plates along the longitudinal direction so as to correspondingly accommodate the plurality of groups of LEDs;

a mark pattern is formed on the light guide plate in a protruding mode and is matched with the mark hole in shape;

the first shell and the second shell are buckled with each other through the plurality of pairs of fasteners so as to clamp the light guide plate in the first shell, and the mark patterns protrude into the mark holes;

the light guide plate has one or more of a light guiding property and a light transmitting property and a self-light emitting property.

Optionally, in some embodiments of the emergency sign light fixture, i) a perimeter of the first housing and ii) a perimeter of the second housing abut each other and form a waterproof groove circumferentially therebetween;

the waterproof groove is positioned on the periphery of the first shell and/or the periphery of the second shell; and the number of the first and second groups,

the first shell and/or the second shell are/is provided with mark holes, and the light guide plate is exposed outwards through the mark holes.

Optionally, the emergency sign lamp of some embodiments further includes a plurality of pairs of snap fasteners disposed circumferentially at the periphery of the first housing and the periphery of the second housing, respectively; and the number of the first and second groups,

a) the periphery of the first shell forms a circumferential groove which is used for limiting the waterproof groove together with the periphery of the second shell; or

b) The periphery of the first shell and the periphery of the second shell correspondingly form a circumferential groove, and the circumferential groove jointly define the waterproof groove.

Optionally, in the emergency sign light of some embodiments, an opening of the groove on the inner wall of the periphery of the first housing abuts against the inner wall of the periphery of the second housing with the snap-fitting of the plurality of pairs of snap-fasteners, thereby enclosing the waterproof groove; or,

the openings of the corresponding grooves on the periphery of the first shell and the periphery of the second shell are mutually butted/abutted along with the snap-fit of the plurality of pairs of fasteners, so that the waterproof groove is formed in a closed manner.

The "inner wall of the periphery of the housing" is in other embodiments or also simply referred to as "inner wall of the periphery of the housing" or "inner wall of the periphery of the housing". The "inner wall of the periphery of the face cover" is also simply referred to as "inner wall of the periphery of the face cover" or "inner wall of the periphery of the face cover" in other embodiments. The "inner wall of the periphery of the back plate" may be simply referred to as "inner wall of the periphery of the back plate" or "inner wall of the periphery of the back plate" in other embodiments. This abbreviation also applies to the "inner wall of the periphery of the housing". The inner wall refers to a surface on which a) the peripheral portion of the surface cover and b) the peripheral portion of the back plate are relatively attached, or may be understood as follows: after the lamp is assembled, the side of the periphery of the shell, the periphery of the face cover and the periphery of the back plate, which is not exposed to the outside, is arranged. And the "inside", "outside" or the like of the housing/back plate/face cover in other embodiments will not be described again.

Optionally, in some embodiments of the emergency sign light, the waterproof groove/groove is distributed on an upper side periphery and/or a side periphery of the first housing and/or the second housing, and the emergency sign light further includes a plurality of mounting holes distributed on and penetrating the upper side periphery and/or the side periphery of the first housing and the second housing; the plurality of mounting holes are discontinuous with the waterproof grooves, and the emergency sign lamp further comprises watertight parts which are distributed along the waterproof grooves; the watertight part comprises waterproof glue or a sealing rubber ring.

Optionally, in some embodiments of the emergency sign light fixture, i) the first housing is a face cover and the second housing is a back plate, or ii) both the first housing and the second housing are face covers; the mark hole is arranged on the face cover;

the emergency sign lamp further comprises a hanging piece independent of the back plate, the hanging piece and the back plate are respectively provided with mutually adaptive connecting portions, and the hanging piece is connected to the back plate through the connecting portions.

Wherein the suspension is independent of the back plate, which means: the hanger and back plate are two separately manufactured components that can be joined together during subsequent lamp assembly.

Optionally, in some embodiments of the emergency sign light fixture, the connecting portion on the hanger and the connecting portion on the back panel are snap-fitted to each other.

Optionally, in some embodiments of the emergency sign light fixture, the connecting portion on the hanger and the connecting portion on the back plate are press-fit.

Optionally, in some embodiments of the emergency sign light fixture, the connecting portion on the hanger and the connecting portion on the back plate are male-female fitted.

Optionally, in some embodiments of the emergency sign light fixture, the hanger is a suspension plate, the suspension plate and the back plate are made of metal, and the connecting portion includes: a) a first riveting location and a second riveting location respectively located on the suspension plate and the back plate, or b) a bolt connection;

optionally, in the emergency sign light of some embodiments, the connecting portion includes: a) a first riveting location and a second riveting location on the suspension plate and the back plate, respectively, or b) a bolt connection.

Optionally, in some embodiments of the emergency sign lamp, the first riveting location protrudes from the suspension plate and is pressed into the second riveting location recessed on the back plate, and an opening of the second riveting location recessed shrinks to clamp/snap the protruding first riveting location.

Further optionally, i) a portion of the back plate opposite to the hanging hole of the hanging plate is recessed into the emergency sign lamp; or, ii) the back plate, partially recessed into the emergency sign light fixture to a) abut the light guide plate and/or b) form a wire passing space/channel between the light guide plate and the back plate.

The hanging holes usually opened on the back plate are formed on a separate hanging plate, and can be riveted on the back plate as required in the assembling process to support the hanging of the lamp. The back plate has no hanging hole, so that the back plate and the second riveting position on the back plate have watertight structures, and the waterproofness of the lamp is improved.

Further, the suspension plate and the back plate are made of metal, or, ii) at least one of the suspension plate and the back plate may also be made of plastic. The structures and materials support the suspension plate and the back plate to be connected with each other through one or more combinations of three connection modes of a) clamping, b) press fitting and c) convex-concave fitting through respective connecting parts.

In another embodiment of the present invention, there is provided an emergency sign light fixture, comprising:

a light emitting panel;

the first shell and the second shell are buckled/jointed along the periphery so as to clamp (sandwich) a light-emitting plate in the first shell and/or the second shell, and the first shell and/or the second shell are/is provided with mark holes through which the light-emitting plate is exposed to the outside;

the periphery of the first shell and the periphery of the second shell are abutted against each other, and a waterproof groove is formed between the periphery of the first shell and the periphery of the second shell along the circumferential direction;

the waterproof groove is located on the periphery of the first shell and/or the periphery of the second shell.

In one embodiment of the utility model, an emergency sign light fixture is provided, comprising:

the waterproof device comprises a first shell and a second shell, wherein the periphery of the first shell and the periphery of the second shell are attached to each other, and a waterproof groove is formed between the periphery of the first shell and the periphery of the second shell along the circumferential direction;

a light emitting panel interposed between the first case and the second case;

wherein the waterproof slot is located on the periphery of the first shell and/or the periphery of the second shell; and the number of the first and second groups,

the first shell and/or the second shell are/is provided with mark holes, and the light-emitting plate is exposed to the outside through the mark holes.

Optionally, the emergency sign lamp of some embodiments further includes a plurality of pairs of fasteners, which are disposed on the periphery of the first housing and the periphery of the second housing correspondingly along the circumferential direction;

the periphery of the first shell forms a circumferential groove which defines the waterproof groove together with the periphery of the second shell.

Optionally, in the emergency sign lamp according to some embodiments, an opening of the groove on the inner wall of the periphery of the first housing abuts against the inner wall of the periphery of the second housing with the snap-fitting of the plurality of pairs of snap-fasteners, thereby enclosing and forming the waterproof groove.

Optionally, the emergency sign lamp of some embodiments further includes a plurality of pairs of snap fasteners disposed circumferentially at the periphery of the first housing and the periphery of the second housing, respectively;

the periphery of the first shell and the periphery of the second shell are correspondingly provided with circumferential grooves which jointly limit (define) the waterproof groove.

Optionally, in the emergency sign lamp of some embodiments, the openings of the corresponding grooves on the peripheries of the first housing and the second housing abut with each other with the snap-fitting of the plurality of pairs of snap-fasteners, thereby enclosing and forming the waterproof groove.

Optionally, in the emergency sign lamp according to some embodiments, the waterproof grooves/grooves are distributed on the upper side periphery and/or the side periphery of the first width on the first housing and/or the second housing, and the emergency sign lamp further includes a plurality of mounting holes distributed on and penetrating the upper side periphery and/or the side periphery of the first housing and the second housing; the plurality of mounting holes are discontinuous with the waterproof grooves, and the emergency sign lamp further comprises watertight parts which are distributed along the waterproof grooves; the watertight part comprises waterproof glue or a sealing rubber ring.

Here, the distribution of the watertight slots/grooves around the perimeter of the housing does not mean: forming a complete closed loop along the perimeter. For example, the lower periphery may not be provided with the waterproof groove, since the lower periphery is less likely to be filled with water. In addition, the upper side periphery and/or the side periphery of the shell are provided with a certain width space, so that a waterproof groove/groove is more conveniently formed, and in some preferred examples, two layers of waterproof grooves in the circumferential direction can be formed. Further, the waterproof groove is not limited to a continuous section, and may be divided into a plurality of sections. When the waterproof groove is configured as a continuous section of groove, the mounting hole may be disposed at a more peripheral position of the peripheral region, and the fastener may be disposed at an outermost position of the periphery of the housing. Compared with the prior art, the waterproof groove is interrupted into the structure of multistage by the mounting hole, so that the peripheral layout of the shell is more compact while the better waterproof performance is kept, more functional elements are arranged on the periphery of the shell in a smaller width, and the volume of the whole lamp body is reduced.

In addition, the mounting holes on the periphery of the upper side can be provided with hanging rings or hanging rod seats for hanging, and the mounting holes on the side sides can be directly penetrated by screws and mounted on a wall or a pre-buried box.

When the back plate is disposed in the sign lamp, the lamp may be suspended and mounted through the back plate, but the suspension portion on the back plate needs to be disposed through the back plate, which causes the lamp housing of the entire lamp to communicate with the outside through the back plate, and affects the sealing property and the waterproof property of the lamp housing. Therefore, in the case where a hanging position needs to be provided on the back plate, it is necessary to improve the waterproofness and/or assemblability of the back plate or the lamp housing.

In this regard, optionally, in the emergency sign lamp according to some embodiments, both the first housing and the second housing may be surface covers, so that the whole sign lamp may have a double-surface display capability. In the emergency sign lamp according to another embodiment, the second housing is a back plate, and the first housing is a face cover; emergent marker light still including connect in the backplate hang the board, hang the board with be provided with respectively on the backplate: a) a first riveting position and a second riveting position which are mutually matched, or b) a bolt connecting piece.

The bolt in the bolt connecting piece can be fixed on the back plate, the screw hole can be arranged on the suspension plate, and the bolt penetrates through the screw hole and is fastened with the back plate and the suspension plate through the nut. Of course, on the contrary, the bolt in the bolt connecting piece can be fixed on the suspension plate, and the screw hole can be arranged on the back plate. For bolted connection spare, the mode of riveting connection has avoided bolted connection to break the backplate (if the bolt is located and hang board one side), and then has destroyed the leakproofness of lamps and lanterns casing, has also avoided bolted connection structure to form a convex bolt on the backplate (if the bolt is located backplate one side), and then has destroyed the surface planarization of lamps and lanterns casing, has increased the volume of lamp body.

Optionally, in the emergency sign lamp according to some embodiments, the first riveting position and the second riveting position are in convex-concave fit, the first riveting position protrudes from the suspension plate and is pressed into the second riveting position recessed on the back plate, and an opening of the second riveting position recessed is contracted to clamp/clamp the protruding first riveting position; the back plate and the suspension plate are made of metal, and the metal material is more suitable for forming riveting connection between the first riveting position and the second riveting position. In addition, the back plate and the hanging plate are spaced, namely, the back plate and the hanging plate are connected through riveting positions and are basically parallel to each other and opposite in a spaced mode, for example, the part, opposite to the hanging hole of the hanging plate, of the back plate is sunken into the emergency sign lamp. Therefore, in the process of installing the lamp, the hook can extend into the hanging hole in the hanging plate conveniently.

Further optionally, the back plate may also be partially recessed into the emergency sign light fixture to a) abut the light guide plate, and/or, b) form a gap between the light guide plate and the back plate, e.g. a channel adapted for wiring/routing.

Since the suspension plate is physically independent from the back plate, it can be determined whether to couple the suspension plate to the back plate according to the needs of the installation site so that the lamp can be installed through the suspension plate, which increases the flexibility of the lamp in the installation and assembly process. The structure of the back plate which is independent and separated from the suspension plate is simplified, and the manufacturability and the modularized assembly degree of the lamp shell and the lamp are improved.

The hanging holes on the independent hanging plates of some embodiments of the present application are often directly opened on the back plate in the prior art, which destroys the waterproofness of the prior art lamp. In the related embodiment of the utility model, the hanging plate which is independent from the back plate and exists independently is provided with the hanging hole, so that the back plate can be not provided with the through hole as the hanging hole, and the water tightness of the whole back plate and the lamp is further enhanced by matching with the waterproof groove on the periphery of the back plate/the surface cover.

In some embodiments, the light source body such as LED lamp beads needs to be connected and powered by wires, because the wires for connecting the LEDs in the body of the lamp are thin and are often connected by welding, and are easily disconnected and detached, and for the connection of a large number of LED lamp beads, the wires are complicated and therefore easily displaced, and the failure rate is high. Therefore, it would be beneficial if the complexity of wiring within the housing for the light source body could be reduced.

Optionally, in the emergency sign light fixture of some embodiments, i) the first housing is a face cover and the second housing is a back plate, or ii) both the first housing and the second housing are face covers; the mark hole is arranged on the face cover.

The luminescent plate is a light guide plate, and the emergency sign lamp further comprises a light source body which is optically connected to the end part or the middle part of the light guide plate and distributed outside the part, corresponding to the sign hole, of the light guide plate.

Optionally, the connecting portion on the back plate is a female buckle, and the connecting portion on the suspension member is a male buckle.

Optionally, the connecting portion on the back plate is a concave sliding joint portion, and the connecting portion on the hanger is a convex sliding joint portion.

Optionally, the connecting portion on the back plate is a male buckle, and the connecting portion on the suspension member is a female buckle.

Optionally, the connecting portion on the back plate is a convex sliding joint portion, and the connecting portion on the hanger is a concave sliding joint portion.

Optionally, the emergency sign lamp of some embodiments further includes a circuit board in a shape of a bar, and the light source bodies are multiple groups of LEDs and are longitudinally arranged on two sides of the circuit board.

The flag hole includes a plurality of portions in a lateral direction; the circuit board is arranged between two adjacent parts in the plurality of parts along the longitudinal direction;

and a plurality of light inlets are formed in the light guide plate along the longitudinal direction, correspond to the plurality of groups of LED spaces and respectively contain the plurality of groups of LEDs.

Optionally, the emergency sign lamp further includes an adaptive power module for the plurality of groups of LEDs, integrated on the circuit board, and respectively connected to the plurality of groups of LEDs through a printed circuit on the circuit board.

The light guide plate can be a continuous plate body, and only the position of the connection circuit board is provided with a light inlet and a light inlet to accommodate the LED on the circuit board, thereby establishing optical connection between the light guide plate and the light source body.

Since there is a location on the front cover between two adjacent portions of the logo holes where no light transmission is needed, in some embodiments, the LED circuit board is disposed in the interior space of the luminaire inside the opaque locations on the covers, and in some embodiments, the opaque locations also correspond to the adjacent areas of the two sub-light guide plates. That is, the LED circuit board is disposed between the two sub-light guide plates, and the LED beads arranged along the two sides of the LED circuit board provide light sources to the sub-light guide plates on the two sides, so that the number of wires is greatly reduced, and even no wires need to be arranged, especially under the condition that the LED light source body and the power supply module supplying power to the light source body are integrated on the circuit board, compared with the condition that "a) each LED circuit board and b) the power supply adapting module which are physically independent by using a plurality of discrete wires" are connected between the two, so that the complexity and failure rate of the wires in the lamp are greatly reduced.

Compared with a structure that a) "the light source body is arranged at the end part of the single side of the light guide plate", the structure that b) "the light source body or the circuit board integrating the light source body is arranged at the middle part of the light guide plate instead of the end part" is more likely to uniformly distribute the light energy of the light source body to the light guide plate, because the light source bodies in some embodiments of the present application are positioned at the middle part and can irradiate to the plate bodies at two sides, the distance from the light source body to any position on the light guide plate is less than the length of the whole light guide plate, which makes the light energy distributed by the light source body have less loss in the process of conducting through the plate bodies, compared with the structure in a), the light energy is distributed more uniformly on the plate bodies, and on average, the brightness of the plate bodies to the outside through the mark holes is also stronger and uniform. In contrast to the structure of c) "the light source bodies are disposed at both side ends of the light guide plate", the structure of b) provided in some embodiments of the present invention simplifies the wiring or circuit complexity of the space inside the lamp, because, especially in the case where i) the light source bodies and ii) the power adapter module for the light source bodies are physically separated/independent, disposing the light source bodies at the ends of the light guide plate respectively requires the power adapter module to establish electrical connection with each light source body, which increases the wiring complexity and the failure rate accordingly.

Optionally, a mark pattern is formed on the light guide plate in a protruding mode and is matched with the mark hole in shape; the first shell and the second shell are mutually buckled along the periphery through the plurality of pairs of fasteners so as to clamp the light guide plate in the first shell, and the mark pattern protrudes into the mark hole; the light guide plate has one or more of a light guiding property and a light transmitting property and a self-light emitting property.

The light emitting panel is either a) integrally formed of a light transmissive plastic, or b) made of a self-luminous plastic, or c) made of a light transmissive plastic doped with a self-luminous material, or d) made of a plastic having a color/fluorescence, which is green.

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

In addition, the utility model has the following advantages:

the peripheral region of the housing in the circumferential direction over the entire area defined by the housing is understood to be the periphery of the housing, which may have a first width in the radial direction, at which the periphery of the first housing and the periphery of the second housing abut against each other, within which width a waterproof groove or a refill watertight member is formed, which blocks the flow of water through the joint between the first housing and the second housing into the interior of the lamp, protecting the light guide plate and the circuit board inside from the external, in particular from the upper/lateral periphery of the lamp, of the permeated water.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:

FIG. 1 shows an exploded view of a fire emergency sign light of one embodiment of the present invention;

FIG. 2 is an enlarged side-up partial schematic view of the back plate in the rear view orientation of the fire emergency sign light of the embodiment shown in FIG. 1;

FIG. 3 illustrates a partial cross-sectional view of a perimeter portion of a snap-fit connection of a face cover and a back plate in the fire emergency sign light of the embodiment illustrated in FIG. 1;

FIG. 4 is a schematic view of the light guide plate in the fire emergency sign light of the embodiment shown in FIG. 1;

FIG. 5 is a schematic structural diagram of a middle portion of the light guide plate optically coupled to the circuit board and the light source body in the embodiment shown in FIG. 4;

FIG. 6 is a schematic perspective view of a suspension plate on a back plate of the fire emergency sign light in the embodiment shown in FIG. 1;

FIG. 7 shows a front view of the hanger plate in the embodiment shown in FIG. 6;

FIG. 8 shows a partial cross-sectional view of a riveted structure between a suspension plate and a back plate in the fire emergency sign light of the embodiment shown in FIG. 1;

FIG. 9 is a schematic structural view of a face cap in the fire emergency sign light of the embodiment shown in FIG. 1;

FIG. 10 is a schematic partial cross-sectional view showing another connecting structure between a back plate and a suspension plate in the fire emergency sign lamp of the embodiment shown in FIG. 1;

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

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.

Middle lamp strip

Fig. 1-9 illustrate different aspects of an emergency sign light fixture in an embodiment of the utility model. The emergency sign light fixture of the related embodiment will be described in detail below with reference to fig. 1, fig. 4, and fig. 5, in which the structural design of the "middle light bar" of the light source body of the main light fixture located in the middle of the light guide plate is possible, but this does not prevent any component of the light fixture of the "middle light bar" related embodiment from being applied to the light fixture of the "peripheral snap flashing groove" heading related embodiment and other embodiments, and the combination forms a variety of variants. In other words, the "middle light bar" and the "peripheral snap-fit waterproof groove" are described with particular emphasis on one aspect of the emergency sign light. The two headings represent 2 aspects of the structure of the emergency sign lamp, which may be combined arbitrarily to form more complex and diversified embodiments, and for the sake of brevity, the present application does not provide any exhaustive description of the combination possibility and the specific combination structure of these 2 aspects.

As shown in the related drawings, in one embodiment of the utility model, an emergency sign lamp is provided, comprising:

a light guide plate;

a first case Mask _1 and a second case Back _1 fastened to each other to sandwich the light guide plates LEB _ P1, LEB _ P2 therebetween; the first shell Mask _1 and/or the second shell Back _1 are/is provided with mark holes H1, and the light guide plates LEB _ P1 and LEB _ P2 are exposed to the outside through the mark holes H1;

and a light source body optically connected to the middle of the light guide plates LEB _ P1 and LEB _ P2.

Optionally, in the emergency sign light of some embodiments, the sign hole H1 includes a plurality of transverse portions H1_1, H1_ 2; and a light source body disposed between adjacent two of the plurality of portions H1_1, H1_2 in the longitudinal direction.

Optionally, in the emergency sign light fixture of some embodiments, the light guide plate includes a plurality of sub light guide plates LEB _ P1, LEB _ P2 corresponding to the plurality of portions H1_1, H1_2 of the sign hole, respectively;

the emergency sign lamp further comprises a circuit board PCB _1 which is in a strip shape and is longitudinally arranged between two adjacent sub light guide plates LEB _ P1 and LEB _ P2;

the light source body is a plurality of groups of LEDs and is longitudinally arranged on two sides of the circuit board PCB _ 1.

Optionally, the emergency sign light fixture of some embodiments further includes an adaptive power module for the plurality of groups of LEDs, integrated on the circuit board PCB _1, and respectively connected to the plurality of groups of LEDs through printed circuits on the circuit board PCB _ 1;

a plurality of light inlets LEDHo _1 are respectively formed in the two opposite end parts of the adjacent two of the plurality of sub light guide plates LEB _ P1 and LEB _ P2 along the longitudinal direction so as to correspondingly accommodate a plurality of groups of LEDs;

mark patterns are formed on the light guide plates LEB _ P1 and LEB _ P2 in a protruding manner and are matched with the mark holes H1_1 and H1_2 in shape;

the first shell Mask _1 and the second shell Back _1 are buckled with each other through a plurality of pairs of buckles Snap _1 so as to clamp the light guide plates LEB _ P1 and LEB _ P2 in the first shell Mask _1 and the second shell Back _1, and the mark patterns protrude into the mark holes H1_1 and H1_ 2;

the light guide plates LEB _ P1, LEB _ P2 have one or more of a light guide property and a light transmission property, and a self-light emission property.

Peripheral buckling waterproof groove

As shown in fig. 1, the fire emergency sign lamp of this embodiment includes:

the first casing Mask _1 and the second casing Back _1, the peripheral PerM _1 of the first casing Mask _1 and the peripheral PerB _1 of the second casing Back _1 are attached to each other, and waterproof grooves Groo _1, Groo _2 and Groo _3 are formed between the peripheral PerM _1 of the first casing Mask _1 and the peripheral PerB _1 of the second casing Back _1 along the circumferential direction.

The light emitting panels LEB _ P1, LEB _ P2 are interposed between the first case Mask _1 and the second case Back _1, as shown in fig. 1.

The waterproof grooves Groo _1, Groo _2 and Groo _3 are positioned on the peripheral PerM _1 of the first shell Mask _1 and/or the peripheral PerB _1 of the second shell Back _ 1; and the number of the first and second groups,

the first housing Mask _1 and/or the second housing Back _1 are provided with mark holes H1, and the light-emitting panels LEB _ P1 and LEB _ P2 are exposed to the outside through the mark holes H1.

In another embodiment of the present invention, an emergency sign light fixture is provided, comprising: light-emitting panels LEB _ P1, LEB _ P2;

the first shell Mask _1 and the second shell Back _1 are buckled/jointed along the periphery so as to clamp (sandwich) light-emitting plates LEB _ P1 and LEB _ P2, mark holes H1 are formed in the first shell Mask _1 and/or the second shell Back _1, and the light-emitting plates LEB _ P1 and LEB _ P2 are exposed outwards through the mark holes H1;

wherein, the peripheral PerM _1 of the first casing Mask _1 and the peripheral PerB _1 of the second casing Back _1 are abutted against each other, and waterproof grooves Groo _1, Groo _2 and Groo _3 are formed between the peripheral PerM _1 of the first casing Mask _1 and the peripheral PerB _1 of the second casing Back _1 along the circumferential direction.

The waterproof grooves Groo _1, Groo _2, and Groo _3 may be located on the peripheral PerM _1 of the first casing Mask _1, or on the peripheral PerB _1 of the second casing Back _1, or the waterproof grooves Groo _1, Groo _2, and Groo _3 may be defined by the peripheral PerM _1 of the first casing Mask _1 and the peripheral PerB _1 of the second casing Back _ 1.

Optionally, the emergency sign lamp of some embodiments further includes a plurality of pairs of Snap fasteners Snap _1, which are circumferentially and correspondingly disposed on the peripheral PerM _1 of the first casing Mask _1 and the peripheral PerB _1 of the second casing Back _ 1;

the perimeter PerM _1 of the first casing Mask _1 forms a circumferential groove (not marked in the figure), and defines (define) waterproof grooves Groo _1, Groo _2, Groo _3 together with the perimeter of the second casing Back _ 1.

Optionally, in the emergency sign lamp according to some embodiments, the opening of the groove on the inner wall of the peripheral PerM _1 of the first housing Mask _1 abuts against the inner wall of the peripheral PerB _1 of the second housing Back _1 along with the Snap-fit of the plurality of pairs of Snap fasteners Snap _1, so as to form the waterproof grooves Groo _1, Groo _2, and Groo _3 in a closed manner.

Optionally, the emergency sign lamp of some embodiments further includes a plurality of pairs of Snap fasteners Snap _1, which are correspondingly arranged on the periphery of the first shell Mask _1 and the periphery of the second shell Back _1 along the circumferential direction;

circumferential grooves are correspondingly formed in the periphery PerM _1 of the first shell Mask _1 and the periphery PerB _1 of the second shell Back _1, and the water-proof grooves Groo _1, Groo _2 and Groo _3 are defined (define) together.

Optionally, in the emergency sign lamp according to some embodiments, the openings of the corresponding grooves on the peripheral PerM _1 of the first housing Mask _1 and the peripheral PerB _1 of the second housing Back _1 are butted/abutted with each other along with the Snap-fitting of the plurality of pairs of Snap fasteners Snap _1, so as to form the waterproof grooves Groo _1, Groo _2, and Groo _3 in a closed manner.

Since water has a property of flowing downward, optionally, in some embodiments of the emergency sign lamp, the waterproof grooves Groo _1, Groo _2, Groo _3 or grooves are distributed on the upper side periphery and/or the side periphery of the first housing Mask _1 and/or the second housing Back _1, which have the first width, and since the upper side periphery and the side periphery have a certain width, there is more sufficient space to form the grooves/waterproof grooves. Further optionally, the emergency sign lamp further includes a plurality of mounting holes Hang _2 distributed and penetrating upper and/or lateral peripheries of the first housing Mask _1 and the second housing Back _1, as shown in fig. 1 and 2. The plurality of mounting holes are used for interrupting the waterproof grooves Groo _1, Groo _2 and Groo _3, which means that the waterproof grooves are not a continuous groove body, but are separated by the mounting holes Hang _2 to become the sub waterproof grooves Groo _1, sub waterproof grooves Groo _2 and sub waterproof grooves Groo _3, and the emergency sign lamp further comprises watertight members (not marked in the figure) arranged along the waterproof grooves Groo _1, Groo _2 and Groo _ 3; the watertight part comprises waterproof glue or a sealing rubber ring.

The waterproof groove structure can understand that: the fact that the watertight grooves Groo _1, Groo _2, Groo _3 or grooves are distributed around the perimeter of the housing does not mean that: a complete closed loop is formed along the perimeter of the housing. For example, the lower periphery may not be provided with the waterproof groove, since the lower periphery is less likely to be filled with water. In addition, since the upper side periphery and/or the side periphery of the shell has a certain width space, it is more convenient to form the waterproof groove/groove, and in some preferred examples, two layers of waterproof grooves in the circumferential direction can be formed, as shown in fig. 3. The waterproof groove is not limited to a continuous segment, and may be divided into a plurality of segments Groo _1, Groo _2, and Groo _ 3. When the waterproof groove is configured as a continuous section of groove, the mounting hole may be disposed at a more peripheral position (not labeled) of the peripheral region, and the Snap fastener Snap _1 may be disposed at an outermost position of the periphery of the housing, for example, at an end section of the periphery of the housing in the figure. In comparison, the waterproof grooves Groo _1, Groo _2 and Groo _3 are interrupted by the mounting holes to be multi-segment structures, so that the peripheral layout of the shell is more compact while the good waterproof performance is maintained, more functional elements are arranged on the periphery of the shell in a smaller width, and the volume of the whole lamp body is reduced.

In addition, the mounting hole Hang _2 on the periphery of the upper side can be provided with a hanging ring or a hanging rod seat for hanging, and the mounting hole Hang _2 on the side can be directly penetrated by a screw and mounted on a wall or mounted on an embedded box.

When the second housing in the sign lamp is configured as the Back plate Back _1, the lamp may be normally mounted in a suspended manner through the Back plate Back _1, but the suspended portion on the Back plate Back _1 may need to be disposed through the Back plate Back _1, which causes the lamp housing of the entire lamp to communicate with the outside through the Back plate Back _1, thereby affecting the sealing/waterproof performance of the lamp housing. Therefore, in the case that a hanging position needs to be arranged on the Back plate Back _1, it is necessary to improve the waterproofness and/or the assemblability of the Back plate Back _1 or the lamp housing.

In this regard, optionally, in the emergency sign lamp of some embodiments, both the first casing Mask _1 and the second casing Back _1 may be surface covers, so that the whole sign lamp may have a double-sided display capability. In the emergency sign lamp of other embodiments, the second shell Back _1 is a Back plate Back _1, and the first shell Mask _1 is a face cover; the emergency sign lamp further comprises a hanging plate Hang _1 connected to the Back plate Back _1, and the hanging plate Hang _1 and the Back plate Back _1 are respectively provided with: a) the first riveting position Rivet _1 and the second riveting position Rivet _2 which are mutually matched, or b) a bolt connecting piece (not shown in the figure).

The bolt in the bolt connecting piece can be fixed on the Back plate Back _1, the screw hole can be arranged on the hanging plate Hang _1, and the bolt penetrates through the screw hole and is fastened with the Back plate Back _1 through the nut. Of course, on the contrary, the bolt in the bolt connecting piece can be fixed on the hanging plate Hang _1, and the screw hole can be arranged on the Back plate Back _ 1. Compared with a bolt connecting piece, the riveting connection mode avoids the situation that the bolt connection needs to break the Back plate Back _1 (if the bolt is positioned on one side of the hanging plate Hang _ 1) so as to further damage the tightness of the lamp shell, and also avoids the situation that the bolt connection structure needs to form a protruding bolt on the Back plate Back _1 (if the bolt is positioned on one side of the Back plate Back _ 1) so as to further damage the smoothness of the outer surface of the lamp shell and increase the volume of the lamp body.

Optionally, in the emergency sign lamp according to some embodiments, the first riveting position Rivet _1 and the second riveting position Rivet _2 are in convex-concave fit, the first riveting position Rivet _1 protrudes out of the hanging plate Hang _1 and is pressed into the second riveting position Rivet _2 recessed on the Back plate Back _1, and an opening of the second riveting position Rivet _2 recessed is contracted to clamp/clamp the protruding first riveting position Rivet _ 1; the Back plate Back _1 and the hanging plate hand _1 are made of metal, and the metal material is more suitable for forming riveting connection between the first riveting position Rivet _1 and the second riveting position Rivet _ 2. In addition, the Back plate Back _1 and the hanging plate Hang _1 are spaced apart, namely, the Back plate Back _1 and the hanging plate Hang _1 are connected through riveting positions and are basically parallel to each other and opposite to each other in a spaced mode, for example, the part of the Back plate Back _1, which is opposite to the hanging hole HangHole _1 of the hanging plate Hang _1, is sunken in the emergency sign lamp. Therefore, in the process of installing the lamp, the hook can extend into the hanging hole in the hanging plate Hang _1 conveniently.

The hanging plate and the back plate are respectively provided with a connecting part, the connecting parts on the hanging plate and the back plate are mutually matched, and can realize mutual connection in one or more of a) clamping connection mode, a) press fit mode and a c) convex-concave fit mode. In addition to the rivet connection mentioned in the other embodiments, the connection structure between the connection portion on the suspension plate and the connection portion on the back plate may be implemented as follows: the hanging plate or the sliding fit part on the hanging plate slides into and is clamped in the sliding groove (not shown in the figure) on the back plate. Fig. 10 is a partial cross-sectional view schematically showing another connection structure between the back plate and the suspension plate in the fire emergency sign lamp of the embodiment shown in fig. 1. In the embodiment shown in fig. 10, the hanging plate Hand _103 has a male snap 21 protruding from the surface as a connecting portion, and the connecting portion on the back plate is implemented as a female snap 22, and the female snap 22 is recessed into the lamp, but the snap 22 and the back plate on which it is located are kept watertight. The male fastener 21 is pressed into the female fastener 22 to realize the clamping connection of the male fastener and the female fastener, so that the whole suspension plate is fixedly connected above the back plate, and the lamp can be suspended in the installation process through the suspension hole formed in the suspension plate.

Of course, in other embodiments, a hanging member may be mounted on the back plate, and the hanging member may not have a hanging hole. The hanger may be plate-shaped, and in some embodiments is also referred to as a hanger plate, and a suspension rope for suspending the lamp passes through a space (not shown) between the hanger plate and the back plate, and is tied to the whole hanger plate/hanger, thereby suspending the lamp. In other embodiments, there may be no specific space between the hanging member and the back plate, and the hanging member is fixed on the back plate only through the connecting portion and has a protrusion or other structure relative to the back plate, so that the hanging rope for hanging the lamp can still be bound to the whole hanging member, thereby achieving the binding with the lamp and the suspension to the lamp.

It should be understood that: compared with the hanging parts without hanging holes, the hanging parts/hanging plates with hanging holes can be better compatible with the existing connecting heads at the tail ends of the hanging ropes in the installation process of the lamp, because the existing connecting heads at the tail ends of the hanging ropes are designed for being mutually matched and connected with the hanging holes which are integrally formed on the back plate in the prior art. Therefore, the hanging part/hanging plate with the hanging hole is beneficial to improving the installability of the lamp.

Since the hanging plate Hang _1 is physically independent of the backboard Back _1, whether the hanging plate Hang _1 is jointed to the backboard Back _1 or not can be determined according to the requirements of an installation site, so that the lamp can be installed through the hanging plate Hang _1, and the flexibility of the lamp in the installation and assembly processes is increased. The structure of the Back plate Back _1 which is independent/separated from the hanging plate Hang _1 is simplified, and the manufacturability of the lamp shell and the lamp is improved.

The hanging hole hand _1 on the independent hanging plate hand _1 of some embodiments of the present application is often directly opened on the Back plate Back _1 in the prior art, which destroys the waterproof property of the prior art lamp. In the related embodiment of the utility model, the hanging hole HangHole _1 is arranged on the hanging plate which is independent of the Back plate, so that a through hole can be not arranged on the Back plate Back _1 as the hanging hole HangHole _1, and the water tightness of the Back plate Back _1 and the whole lamp can be further enhanced by matching with the waterproof grooves Groo _1, Groo _2 and Groo _3 on the periphery of the Back plate Back _ 1/the surface cover Mask _ 1.

Further optionally, the Back panel Back _1, may also be partially recessed into the emergency sign light fixture to a) abut against the light guide panel LEB _ P1, LEB _ P2, and/or, b) form a wire passing space/channel UNACC23 between the light guide panel LEB _ P1, LEB _ P2 and the Back panel Back _ 1.

As shown in fig. 1 and 4, the light guide plates LEB _ P1 and LEB _ P2 may include a plurality of portions, or sub light guide plates, which are independent of each other, and of course, the portions of the light guide plates may be connected to each other to form a whole.

As shown in fig. 2, in the enclosed space (enclosure) between the Back plate Back _1 and the face cover Mask _1, the inner recess ACC23 is recessed from the Back plate Back _1 (from the view of the outer surface of the Back plate Back _ 1), and protrudes from the inner surface of the Back plate Back _1 (from the view of the inner surface of the Back plate Back _ 1) through the recess ACC23 and abuts against the light guide plates LEB _ P1 and LEB _ P2, so that the light guide plates LEB _ P1 and LEB _ P2 and the Back plate Back _1 and the face cover Mask _1 are more stably fixed relative to each other. Meanwhile, since the concave portion ACC23 is partially/partially formed on the Back panel Back _1, a gap space is formed between a) the portion unadopted unadapted portion unadapted 23 of the Back panel Back _1 and b) the light guide plates LEB _ P1, LEB _ P2, and this gap space is adapted in shape to the wiring/outlet lines and the like inside the light fixture, such as the wiring/routing between the Power module PM _1 and the external Power supply Power _ 1. The internal space between the face cover Mask _1 and the Back plate Back _1 is fully utilized, and extra plastic parts with thickness are not needed to be adopted to be filled between the light guide plate LEB _ P1, LEB _ P2, the face cover Mask _1 and other parts so as to form a wire outlet position for a power line, so that the structure of the lamp is simplified, the thickness of the lamp is reduced, the structural strength, the structural stability and the assembly performance of the lamp are improved, and the overall assembly of the lamp is more compact and simpler.

In some embodiments, the light source body such as LED lamp beads needs to be connected and powered by wires, because the wires for connecting the LEDs in the body of the lamp are thin and are often connected by welding, and are easily disconnected and detached, and for the connection of a large number of LED lamp beads, the wires are complicated and therefore easily displaced, and the failure rate is high. Therefore, it would be beneficial if the complexity of wiring within the housing for the light source body could be reduced.

Optionally, in the emergency sign lamp according to some embodiments, i) the first housing is a face cover Mask _1, and the second housing is a Back plate Back _1, or ii) both the first housing and the second housing are face cover Mask _ 1; the mark hole H1 is opened on the face cover Mask _ 1.

The light emitting panels LEB _ P1, LEB _ P2 are light guide panels LEB _ P1, LEB _ P2, and the emergency sign light further includes a light source body optically connected to the ends or the middle of the light guide panels LEB _ P1, LEB _ P2 and distributed outside the portions of the light guide panels LEB _ P1, LEB _ P2 corresponding to the sign holes H1.

Optionally, the emergency sign lamp of some embodiments further includes a circuit board PCB _1 in a bar shape, as shown in fig. 1 and 5. The light source body is a plurality of groups of LEDs and is longitudinally arranged on two sides of the circuit board PCB _ 1.

Alternatively, the flag hole H1 includes a plurality of portions, for example, 2 portions, in the lateral direction, as shown in fig. 1 and 9. And the circuit board PCB _1 is arranged between the 2 parts along the longitudinal direction.

The light guide plates LEB _ P1 and LEB _ P2 are provided with a plurality of light inlets LEDHo _1 along the longitudinal direction, which correspond to the plurality of groups of LED spaces and respectively accommodate a plurality of groups of LEDs (not shown in the figure, located in the light inlets LEDHo _ 1).

Optionally, the emergency sign light fixture further includes an adaptive power module (not shown in the figure) for the plurality of groups of LEDs, integrated on the circuit board PCB _1, and respectively connected to the plurality of groups of LEDs through printed circuits on the circuit board PCB _ 1.

Here, the position of connecting the circuit board PCB _1 on the light guide plates LEB _ P1, LEB _ P2 may be disconnected, which forms a plurality of sub light guide plates LEB _ P1, LEB _ P2, such as two sub light guide plates LEB _ P1, LEB _ P2 demarcated by the circuit board PCB _1 in fig. 1 or fig. 4, the sub light guide plates LEB _ P1 correspond to the mark holes H1_1, and the sub light guide plates LEB _ P2 correspond to the mark holes H1_ 2. Of course, the light guide plates LEB _ P1 and LEB _ P2 may also be formed as a continuous plate, and only the position of the connection circuit board PCB _1 is opened with a light inlet and a light inlet hole LEDHo _1 for accommodating the LED lamp beads on the circuit board PCB _1, thereby establishing optical connection between the light guide plates LEB _ P1 and LEB _ P2 and the light source body.

Since there is a position on the front cover between the two adjacent part-marking holes H1_1 where no light transmission is needed, in some embodiments described above, the LED circuit boards PCB _1 are preferably arranged in the inner space of the luminaire inside the opaque position light _1 on these front covers Mask _ 1. In some embodiments, the light-tight position light _1 also corresponds to the adjacent area of the two light sub-guiding plates LEB _ P1 and LEB _ P2 in the interior of the lamp. That is, the LED circuit board PCB _1 is disposed between the two sub light guide plates LEB _ P1 and LEB _ P2, and the LED lamp beads arranged along the two sides of the LED circuit board PCB _1 respectively provide light sources to the sub light guide plates LEB _ P1 and LEB _ P2 on the two sides, so that the number of wires is greatly reduced, even no wires are needed, for example, in the case that an LED light source body and a power module for supplying power to the light source body are integrated on the circuit board PCB _1, compared with the case that "a) each LED circuit board PCB _1 and b) the power adapter module physically independent by using a plurality of discrete wires are connected" in the prior art, the wiring complexity and the failure rate in the lamp are greatly reduced.

Compared to a structure in which "the light source body is disposed at one-side end of the light guide plates LEB _ P1, LEB _ P2", such a structure in which b) "the light source body or the circuit board PCB _1 integrating the light source body is disposed at the middle of the light guide plates LEB _ P1, LEB _ P2 instead of the end" is more likely to uniformly distribute light energy of the light source body to the light guide plates LEB _ P1, LEB _ P2 because the light source bodies in some embodiments of the present application are located at the middle of the entire light guide plate, for example, between the sub-light guide plates LEB _ P1 and LEB _ P2, and can be irradiated to the plate bodies LEB _ P1, LEB _ P2 at both sides, and the distance of the light source body from any position on the light guide plates LEB _ P1, LEB _ P2 is less than the length of the entire light guide plates LEB _ P1, LEB _ P2, which causes the light energy of the light source body to be emitted during the transmission through the plate bodies a), the loss is smaller, and the light energy is distributed more uniformly on the plate bodies LEB _ P1 and LEB _ P2 and is less prone to be attenuated due to larger conduction distance. On average, the outward brightness of the plate bodies LEB _ P1 and LEB _ P2 through the marking holes H1 is also stronger and more uniform. In contrast to the structure of c) "the light source bodies are disposed at the multi-side/double-side ends of the light guide plate LEB _ P1", the structure of b) provided in some embodiments of the present invention simplifies the wiring or circuit complexity of the space inside the lamp because, especially in the case where i) the light source bodies and ii) the power adapter module for the light source bodies are physically separated/independent, disposing the light source bodies at the ends of the light guide plates LEB _ P1 and LEB _ P2, respectively, requires the power adapter module to establish electrical connection with each light source body, which increases the wiring complexity and the failure rate accordingly.

Alternatively, the light guide plates LEB _ P1, LEB _ P2 are protruded to form logo patterns, which are fitted to the logo holes H1_1, H1_2 in shape; the first shell Mask _1 and the second shell Back _1 are buckled with each other along the periphery through a plurality of pairs of buckle pieces Snap _1 so as to clamp the light guide plates LEB _ P1 and LEB _ P2 in the first shell Mask _1 and the second shell Back _1, and the mark patterns are protruded into the mark holes H1_1 and H1_ 2; the light guide plates LEB _ P1, LEB _ P2 have one or more of a light guide property and a light transmission property, and a self-light emission property.

The light emitting or guiding plates LEB _ P1, LEB _ P2 are a) integrally molded from a light transmissive plastic, or b) made from a self-luminous plastic, or c) made from a light transmissive plastic doped with a self-luminous material, or d) made from a plastic having color/fluorescence that is green.

It should be noted that the light-emitting panels LEB _ P1, LEB _ P2 in some embodiments refer to a panel body through the surface of which light can be emitted. And the light emitted through the surface thereof may a) be caused by its own self-luminous property, for example, the light-emitting panels LEB _ P1, LEB _ P2 may be made of self-luminous materials, or b) the light-emitting panels LEB _ P1, LEB _ P2 as a light-guiding medium to guide the light emitted from other light sources to the optical surfaces at both sides of the panel body. In view of the above b), the light-emitting panels LEB _ P1 and LEB _ P2 are light-guiding panels, and are named as "light-guiding" but the "light-guiding panels" are not limited to only have light-guiding properties, and for example, the light-guiding panels may have light-transmitting properties to the outside of the mark holes H1 at the mark holes H1 on the cover. In the case a), the light-emitting panels LEB _ P1 and LEB _ P2 may be transparent panels. The light-transmitting plate may have one or more of a light-guiding property, a light-transmitting property, and a self-light-emitting property.

The light emitting or light guiding plates LEB _ P1, LEB _ P2 in some embodiments may be integrally formed from a light transmissive plastic comprising one or more of a subgeneric material, a polycarbonate plastic, a polystyrene plastic.

Further, alternatively, the flag holes H1_1, H1_2 are optical through holes, which means that the flag hole H1 optically penetrates the face cover Mask _1, and is not limited to a physical penetrating structure. The optical openings may be formed in the corresponding positions of the cladding layer, for example, by using some transparent material, but in this case, the mark holes H1 on the face cover Mask _1 are not physically through-formed, but only the transparent and light-transmitting characteristics are maintained. In popular terms: the indicia openings H1 remain light transmissive but not necessarily "breathable". Accordingly, the optical surfaces of the light emitting or light guiding plates LEB _ P1, LEB _ P2 are "exposed to the outside" through the marking holes H1 of the first cover Mask _1, which is also referred to as "optical exposure", without being limited to being physically exposed through. For example, a light-transmitting paper or a light-transmitting member may be further disposed in the mark holes H1_1 and H1_2, and the light guide plates LEB _ P1 and LEB _ P2 are optically exposed to the outside through the light-transmitting paper or the light-transmitting member.

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 … …," "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 sequences other than those illustrated or described herein.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (10)

1. An emergency sign light, comprising:

a light guide plate;

a first case and a second case which are fastened to each other to sandwich the light guide plate therebetween; the first shell and/or the second shell are/is provided with mark holes, and the light guide plate is exposed outwards through the mark holes;

and the light source body is optically connected to the middle part of the light guide plate.

2. The emergency sign light of claim 1 wherein the sign hole comprises a plurality of portions that are transverse; the light source body is disposed between adjacent ones of the plurality of portions in a longitudinal direction.

3. The emergency sign light of claim 2, wherein the light guide plate comprises a plurality of sub light guide plates respectively corresponding to a plurality of portions of the sign hole;

the emergency sign lamp further comprises a circuit board which is in a strip shape and is longitudinally arranged between the adjacent sub light guide plates;

the light source body is a plurality of groups of LEDs and is longitudinally arranged on two sides of the circuit board.

4. Emergency sign light according to claim 3,

the emergency sign lamp also comprises an adaptive power supply module aiming at the multiple groups of LEDs, is integrated on the circuit board and is respectively connected to the multiple groups of LEDs through printed circuits on the circuit board;

a plurality of light inlets are respectively formed in two opposite end parts of two adjacent sub light guide plates along the longitudinal direction so as to correspondingly accommodate the plurality of groups of LEDs;

a mark pattern is formed on the light guide plate in a protruding mode and is matched with the mark hole in shape;

the first shell and the second shell are buckled with each other through the plurality of pairs of fasteners so as to clamp the light guide plate in the first shell, and the mark patterns protrude into the mark holes;

the light guide plate has one or more of a light guiding property and a light transmitting property and a self-light emitting property.

5. An emergency sign light of any one of claims 1 to 4 wherein i) the periphery of the first housing and ii) the periphery of the second housing abut one another and form a water-tight channel circumferentially therebetween;

the waterproof groove is positioned on the periphery of the first shell and/or the periphery of the second shell; and the number of the first and second groups,

the first shell and/or the second shell are/is provided with mark holes, and the light guide plate is exposed outwards through the mark holes.

6. The emergency sign light of claim 5, further comprising a plurality of pairs of snap members disposed circumferentially at a periphery of the first housing and a periphery of the second housing, respectively; and the number of the first and second groups,

a) the periphery of the first shell forms a circumferential groove which is used for limiting the waterproof groove together with the periphery of the second shell; or

b) The periphery of the first shell and the periphery of the second shell correspondingly form a circumferential groove, and the circumferential groove jointly define the waterproof groove.

7. The emergency sign light of claim 6 wherein the opening of the groove on the peripheral inner wall of the first housing abuts the peripheral inner wall of the second housing with the snap-fit engagement of the plurality of pairs of snaps to thereby enclose the watertight channel; or,

the openings of the corresponding grooves on the periphery of the first shell and the periphery of the second shell are mutually butted/abutted along with the snap-fit of the plurality of pairs of fasteners, so that the waterproof groove is formed in a closed manner.

8. The emergency sign light of claim 7, wherein the flashing grooves/recesses are distributed around the upper and/or lateral peripheries of the first and/or second housings, the emergency sign light further comprising a plurality of mounting holes distributed around and through the upper and/or lateral peripheries of the first and second housings; the plurality of mounting holes are discontinuous with the waterproof grooves, and the emergency sign lamp further comprises watertight parts which are distributed along the waterproof grooves; the watertight part comprises waterproof glue or a sealing rubber ring.

9. The emergency sign light of claim 8, wherein i) the first housing is a face cover and the second housing is a back plate, or ii) both the first housing and the second housing are face covers; the mark hole is arranged on the face cover;

the emergency sign lamp further comprises a hanging piece independent of the back plate, the hanging piece and the back plate are respectively provided with mutually adaptive connecting portions, and the hanging piece is connected to the back plate through the connecting portions.

10. An emergency sign light of claim 9,

a) the connecting part on the hanging part is clamped with the connecting part on the back plate; and/or β) the connection portion on the hanger is press-fitted with the connection portion on the back plate; and/or γ) the connection portion on the hanger is convex-concave fitted with the connection portion on the back plate;

A) the connecting part on the back plate is a female buckle, and the connecting part on the hanging part is a male buckle; or, B) the connecting part on the back plate is a concave sliding joint part, and the connecting part on the hanging piece is a convex sliding joint part; or, C) the connecting part on the back plate is a male buckle, and the connecting part on the hanging part is a female buckle; or, D) the connecting part on the back plate is a convex sliding joint part, and the connecting part on the hanging piece is a concave sliding joint part;

the hanger is a hanger plate, i) the hanger plate and the back plate are made of metal, or ii) the hanger plate and/or the back plate are made of plastic;

the connecting portion includes: a) a first riveting location and a second riveting location respectively located on the suspension plate and the back plate, or b) a bolt connection;

the first riveting position protrudes out of the suspension plate and is pressed into the second riveting position recessed on the back plate, and an opening of the second riveting position recessed shrinks to clamp/clamp the protruding first riveting position;

i) hanging holes are formed in the hanging plate, and the part, opposite to the hanging holes, of the back plate is sunken into the emergency sign lamp; or, ii) the back plate, partially recessed into the emergency sign light fixture to a) abut against the light guide plate and/or b) form a wire passing space/channel between the light guide plate and the back plate;

the back plate and the second riveting position on the back plate have a watertight structure/seamless structure; the connecting part/the second riveting position on the back plate is formed on the outer side of the back plate in a non-penetrating manner;

the emergency sign lamp further comprises a light-transmitting piece arranged in the sign hole, and the light guide plate is exposed outwards through the light-transmitting piece in the sign hole.

Images