Lamp box and fire emergency lighting lamp thereof

Abstract

The utility model relates to the field of emergency equipment, and provides a lamp box and an emergency lighting lamp, the lamp box and the emergency lighting lamp comprise a bottom wall and a plurality of walls, the plurality of walls are erected from the bottom wall along the periphery of the bottom wall, every two adjacent walls of the plurality of walls are mutually jointed to form a box body corner angle, and a port is enclosed in the direction far away from the bottom wall; the cover body is covered on the port; wherein the corner angles of the box body outwards form an arc transition surface. Therefore, the use safety of the emergency lighting lamp is improved.

Description

Technical Field

[0001] The utility model relates to the field of lighting / sign equipment, in particular to a light box and a fire emergency lighting fixture thereof. Background Art

[0002] Fire emergency lights are a guarantee for public safety and emergency response, and are a mandatory measure for public firefighting. They are used in a wide range of areas and are relatively complex to deploy. Fire emergency lighting is usually installed in fire escape passages. When power outages or fire alarms occur, the lights can be automatically turned on to achieve emergency lighting functions. This type of fire emergency lighting fixture has two lamp heads, so it is also referred to as a double-head lamp.

[0003] The existing double-head lamp consists of a light box, a circuit board installed in the light box, a lamp holder installed on the light box and a lamp holder installed above the lamp holder. The light box can be made of metal or plastic. Due to the convenience of installation and insulation requirements, a fixing plate made of plastic is often provided between the metal light box and the circuit board to support and fix the circuit board, thereby avoiding leakage caused by direct contact between the circuit board and the metal light box. Both the fixing plate and the lamp holder need to be manually installed on the light box using additional screws or other mechanical structures. The structure is relatively complicated, the assembly process is labor-intensive and time-consuming, and the assemblability is poor.

[0004] Moreover, the light boxes of fire emergency lighting fixtures in the prior art all have right-angled edges, whether it is a box structure formed by casting or a box structure formed by bending a plate. The edges of these right-angled edges are relatively sharp. Especially after the light box is formed by bending a plate, the sharp edges of the plate are often exposed to the outside, posing a safety hazard to the use of the lamp. Summary of the invention

[0005] One of the purposes of the present invention is to improve the safety of using a light box and a light fixture thereof.

[0006] At least for this purpose, a new box structure is proposed in one embodiment of the present application. The light box with this new box structure includes:

[0007] A bottom wall and a plurality of walls, the plurality of walls rising from the bottom wall along the periphery of the bottom wall, two adjacent walls of the plurality of walls being joined to each other to form a corner of the box body, and enclosing in a direction away from the bottom wall to form a port;

[0008] The cover body covers the port; wherein the edges and corners of the box body form an arc transition surface facing outwards.

[0009] Optionally, in some embodiments, two adjacent ends of two adjacent walls among the plurality of walls are bent toward each other and connected and fixed; or,

[0010] At least one of two adjacent end portions of two adjacent walls among the plurality of walls is bent and connected and fixed to the other.

[0011] Optionally, in some embodiments, the bottom wall has a curvature at the corner of the box body that matches the arc transition surface;

[0012] The light box is in a rectangular parallelepiped shape, and the multiple walls are four walls; the arc transition surface smoothly transitions between two adjacent walls that are perpendicular to each other among the four walls;

[0013] The bottom wall is bent at the corner of the box body to form an extension piece, which extends toward the circular arc transition surface and is adjacent to the circular arc transition surface with a seam or without a seam.

[0014] Optionally, in some embodiments, the outer peripheral edge of the port is raised to form a buckle strip;

[0015] The cover body further comprises a cover body and a peripheral portion extending outward from the cover body, wherein the peripheral portion is formed as an inner curling structure and is buckled and connected to the buckling strip.

[0016] Optionally, in some embodiments, at least a portion of the edge of the port is retracted inward to form a stepped portion, and the buckle strip includes a plurality of protrusions arranged along the stepped portion;

[0017] The peripheral portion is rolled inwardly and backwardly to be engaged with the plurality of raised positions;

[0018] Wherein, the stepped portion includes: a first extension formed by bending the edge of the port toward the inner side of the light box, and a second extension extending from the first extension toward the peripheral portion; and the plurality of protrusions are arranged along the outer periphery of the second extension.

[0019] Optionally, the light box of some embodiments further includes a wire storage groove, which is formed by the bottom wall being recessed into the light box; the recess is convex or square, and the proportion of its area to the bottom wall belongs to any of the following ranges: [40%, 90%], [50%, 80%], [60%, 70%], [40%, 60%], [50%, 70%], [60%, 90%], [70%, 90%].

[0020] In another embodiment of the present application, a fire emergency lighting fixture is provided, characterized in that it includes the light box in any other embodiment.

[0021] Optionally, the light box or fire emergency lighting fixture of some embodiments further includes:

[0022] A fixed position, a depression formed on the wall of the light box;

[0023] The assembly part has a protrusion formed on its surface and is fixed in the fixing position, so that the assembly part is assembled on the light box.

[0024] Optionally, in some embodiments, the protrusion is integrally formed on the surface of the assembly part to form an integrally connected injection molded part / plastic part; the fixing position is a through hole;

[0025] Wherein, the through hole is a countersunk through hole; the head of the protrusion extends to the countersunk head portion of the countersunk through hole, the head of the protrusion fills the countersunk head portion, and the head of the protrusion expands in the countersunk head portion so that its size is larger than the aperture of the through hole portion of the countersunk through hole.

[0026] Optionally, in some embodiments, the fixing position is a through hole, which is opened on the bottom wall of the light box; the protrusion passes through the through hole and is embedded / riveted into the through hole;

[0027] The head of the protrusion extends to the outside of the light box, and the head is extended / expanded to a diameter larger than the aperture of the through hole;

[0028] The assembly part is covered on the inner side of the light box, and the raised part covers / sticks to the edge of the through hole;

[0029] The assembly further includes a fixing plate;

[0030] The protrusions and through holes are arranged on the fixing plate and the bottom wall correspondingly, and the protrusions are connected to the through holes to fix the fixing plate to the inner side of the bottom wall;

[0031] The four walls and the bottom wall are formed by bending four protruding ends of a substantially cross-shaped plate body toward each other;

[0032] The two opposite ends of the plate body in the longitudinal direction are bent toward each other to form the upper wall and the lower wall of the four walls; the two opposite ends of the plate body in the transverse direction are bent toward each other to form the two side walls of the four walls

[0033] The plate body is a metal plate body, and the metal plate body is a color-coated steel plate;

[0034] Two opposite ends of the plate body in the longitudinal direction are bent toward each other to form an upper wall and a lower wall among the four walls; two opposite ends of the plate body in the transverse direction are bent toward each other to form two side walls among the four walls;

[0035] The fixing member is fixed to a) the bottom wall and b) the upper wall / the lower wall from the inner side of the light box through the fixed connection between the protrusion and the through hole;

[0036] The assembly also includes a lamp holder and / or a fixing member;

[0037] The upper wall is provided with a mounting hole for accommodating the lamp holder, and the mounting hole is communicated with the port;

[0038] The periphery of the lamp holder extends toward the port to form a buckle, which is buckled and connected with the peripheral part;

[0039] The protrusions and through holes are also arranged correspondingly around the peripheral portion of the lamp holder and around the mounting hole;

[0040] The fixing member spans the bottom wall and one or more of the four walls and is fixed relatively thereto; the protrusions and through holes are also correspondingly arranged on i) the fixing member and ii) the bottom wall and / or the upper wall and / or the lower wall;

[0041] Two adjacent ends of two adjacent walls among the four walls are overlapped and riveted with each other at a bent step position or a Z-shaped joint position;

[0042] The fire emergency lighting fixture also includes a lamp cap, the bottom of which forms a ball head structure;

[0043] The lamp holder is provided with a ball socket adapted to the ball head structure;

[0044] The ball head structure is rotatably installed in the ball socket, and a first wire-passing channel is opened at the bottom of the ball socket, connecting to the interior of the emergency equipment box; and a stopper is also provided on the outer side of the bottom of the ball head structure, which extends into the first wire-passing channel and abuts against the edge / inner wall of the first wire-passing channel as the ball head structure rotates.

[0045] The peripheral portion of the cover body includes cover body corners corresponding to the corners of the box body and is formed into rounded corners.

[0046] Optionally, in some embodiments of the light box, the size of the head and the assembly part are larger than the aperture of the through hole, and the head is clamped to the edge of the through hole. Thereby, the raised part forms a (similar to) riveting / riveting structure for the through hole. Of course, optionally, the raised part can be a heat riveted part, the assembly part and the raised part can be an integral injection molded part, etc.

[0047] [Technical Effect]: In some embodiments, the edges and corners of the light box form an arc transition surface facing outward, making it difficult for the sharp edges and corners of the box to come into contact with the human body, effectively avoiding damage to the human body and improving the safety of the light box and lamps.

[0048] In some embodiments, the through hole can be implemented as a countersunk through hole, and the head of the protrusion extends to the countersunk head of the countersunk through hole and expands / fills the countersunk head. Therefore, the size of the head is larger than the diameter of the through hole of the countersunk through hole, so that the head of the protrusion can be fixed in the countersunk through hole, so that the assembly connected to the protrusion is installed inside the box. In this structure, since the head of the protrusion can be accommodated in the countersunk through hole, the end is basically flush with the outer wall of the light box without much protrusion. Therefore, the exterior of the light box is made smoother, and the safety of the fire emergency lighting fixture is improved.

[0049] Optionally, in some embodiments of the light box, the protrusion extends into the through hole, and the head of the protrusion protrudes out of the through hole through the through hole; the head extends along the outer wall of the box body toward the periphery of the through hole, the size of the head is larger than the aperture of the through hole, and the head is clamped to the edge of the through hole. Thus, the assembly part is assembled to the inner wall of the box body.

[0050] Since the box wall is generally thin, the length of the protrusions such as columns adapted to the through holes is usually short, and the cross-section of the protrusions / columns can be circular, square, polygonal, or other irregular shapes.

[0051] Optionally, the light box in some embodiments can be implemented as an emergency lighting light box; therefore, in some of the following embodiments, the emergency lighting light box (referred to as: light box) may be used as an example to provide a more specific and scenario-based description of the light box.

[0052] In another alternative, the fixing plate extends from the inner side of the bottom wall to the upper wall and / or lower wall and / or side wall; the insulating plate, the wire fixing plate and the fixing plate are integrally fixed to i) the bottom wall and ii) the upper wall and / or lower wall and / or side wall, and the column is embedded / riveted in the through hole. If the insulating plate, the wire fixing plate and the fixing plate are injection molded during the manufacturing process, the insulating plate and the fixing plate are coated on the inner side of the bottom wall, and there is a gap between the wire fixing plate protrusion and the bottom wall, then the insulating plate and the fixing plate themselves have a certain adhesion to the inner side of the bottom wall, and the riveted / embedded structure of the column in the through hole is also integrally formed in the through hole as the plate body (of the insulating plate / fixing plate) is formed during the injection molding process. The head of the column is relatively large and clamps the edge of the through hole, thereby further enhancing the firmness of the connection between the "insulating plate and the fixing plate" and the bottom wall. Therefore, the new structural design of the insulating plate and the fixing plate made of plastic "as a whole against / covering the inner wall of the box, and the columns thereon being embedded / riveted in the through-holes" makes it possible to automatically complete "the integral injection molding assembly of the insulating plate, the wire fixing plate and the fixing plate onto the inner wall of the box" or "the hot-melt riveting connection of the prefabricated parts on the through-holes" by injection molding or other methods, and is no longer limited to the fixing methods such as screws in the prior art and the corresponding manual assembly / manufacturing. Therefore, these embodiments of the present application greatly improve the assemblability and manufacturability of the light box.

[0053] The covering structure of the insulating plate and the fixing plate on the inner wall of the box, the covering structure of the head of the fixed end on the box from the outside of the box, or the covering structure of the raised part on the edge of the through hole on the assembly part, these covering structures not only enhance the structural stability between the assembly part and the box, but also enhance the sealing of the box, so that the box will not be connected to the air outside the box through the through hole.

[0054] In another embodiment of the present application, a fire emergency lighting fixture is provided, including the emergency lighting light box in any other embodiment.

[0055] Optionally, the fire emergency lighting fixture of the above or some of the following embodiments further includes a lamp cap, the bottom of which forms a ball head structure;

[0056] The lamp holder is provided with a ball socket adapted to the ball head structure;

[0057] The ball head structure is rotatably installed in the ball socket, and a first wire-passing channel is opened at the bottom of the ball socket, which is connected to the interior of the light box; and a stopper is also provided on the outer side of the bottom of the ball head structure, which extends into the first wire-passing channel and abuts against the edge / inner wall of the first wire-passing channel as the ball head structure rotates.

[0058] In some embodiments of the light box, the assembly part is assembled to the box body by receiving the protrusion extending integrally from the assembly part through the fixing position of the box body, and forming a fixed connection between the two. Since the protrusion protrudes integrally from the surface of the assembly part, the connection and assembly between the assembly part and the box body do not require a third separate component such as a screw. The assembly parts are reduced, the assembly structure is simplified, and it is more conducive to the realization of automated assembly, thereby improving the assemblability / manufacturability of the light box.

[0059] In some preferred embodiments, the fixing position is implemented as a through hole, which passes through the wall of the box body. The protrusion extends into the through hole, and the head of the protrusion protrudes out of the through hole through the through hole; the head extends along the wall of the box body to the periphery of the through hole, and the size of the head is larger than the aperture of the through hole, and is clamped to the edge of the through hole.

[0060] The above-mentioned protrusion passes through the through hole and extends in a similar "riveting" structure, which can realize the planar installation of a plate-shaped assembly part on the inner wall of the box, and the assembly part can be firmly combined with the flat inner wall of the box without covering the corners of the box. In addition, the above-mentioned matching structure between the through hole and the column is also very convenient for introducing hot riveting, injection molding and other methods to assemble the assembly part and the box during the manufacturing process of the light box. In this case, the relative fixation of the assembly part and the box wall can be formed by relying on "the covering force of the assembly part on the inner wall of the box and the covering force of the column on the edge of the through hole". In addition, the head of the protrusion extends to a size larger than the aperture of the through hole so as to be clamped in the through hole, which makes the assembly part more firmly installed on the box wall. Alternatively, a press fit can be achieved between the protrusion on the assembly part and the fixed position by applying mechanical pressure, and the two are connected / clamped together by the stress generated by the protrusion pressing into the fixed position. Therefore, with the help of the new structural design of "the protrusion formed integrally on the assembly part and the fixing position on the box body" in these embodiments of the present application, it is more conducive to the automated assembly / manufacturing of the assembly part on the box body, thereby improving the assemblability / manufacturability.

[0061] In some preferred examples, the assembly parts such as the connecting plate, insulating plate, fixing plate, and wire fixing plate are fixed with the bottom wall or the box wall by convex-concave matching. This convex-concave matching structural design can allow the use of injection molding methods such as in-mold casting during the manufacturing process, which can be completed by automated processes. In particular, for the structure in which the insulating plate, fixing plate, and wire fixing plate are connected as one, the manufacturing is more convenient. Compared with the screw fixing method in the prior art, the technical solutions of these embodiments of the present application greatly improve the manufacturability and assemblability of the light box. In particular, in some embodiments, the protrusion and the fixing position are respectively implemented as a protruding column and a through hole on the box body, and the head of the column extends through the through hole to the outside of the box body and extends to a hole larger than the through hole. This structural design allows the column to be directly processed into the through hole of the box body by in-situ casting using plastic raw materials during the manufacturing process of the light box, thereby greatly improving the manufacturability and / or assemblability of the light box and the lamp.

[0062] In addition, in some preferred embodiments, since the light box is a box structure formed by bending a cross plate, most parts of the box, such as through holes, hanging installation positions, etc., can be stamped on the plate before bending, and the manufacturing efficiency is very high. However, some boxes in the prior art have four walls with an integrally connected structure. The through holes on this structure need to be stamped after the integrally connected structure of the box is stretched and formed, so as to avoid deformation due to stretching. This integrally connected box structure is difficult to manufacture and has a high defective rate. Therefore, the new light box design with a bending structure proposed in some embodiments of the present application has better manufacturability. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0064] Figure 1 A front-side stereoscopic diagram of a fire emergency lighting fixture according to an embodiment of the utility model is shown;

[0065] Figure 2 Shows Figure 1 An exploded diagram of the lamp at the side front angle;

[0066] Figure 3 Shows Figure 2 A partial enlarged schematic diagram of the integrated lamp holder and connecting plate;

[0067] Figure 4 Shows Figure 1 A side view of a light box in a lamp;

[0068] Figure 5 Shows Figure 4 A partial enlarged view of the top in the side view;

[0069] Figure 6 Shows Figure 1 A perspective diagram of the side and rear of the middle lamp;

[0070] Figure 7 Shows Figure 6 Schematic diagram of the cross-sectional structure of the fire emergency lighting fixture along the section line AA;

[0071] Figure 8 Shows Figure 7 A partial enlarged schematic diagram of the top of the cross-sectional structure in FIG.

[0072] Fig. 9 shows the bending process used to form Figure 2 A plate body of the box;

[0073] Fig.10 shows the bending process used to form Figure 2 Another plate of the box;

[0074] Fig.11 Shows Fig.10 A side and rear perspective diagram of a fire emergency lighting fixture;

[0075] Fig.12 Shows Figure 1 An exploded schematic diagram of the lamp from the side and rear perspective;

[0076] Fig.13 Shows Fig.11 Schematic diagram of the cross-sectional structure of the fire emergency lighting fixture along the section line AA;

[0077] Fig.14 Shows Fig.13 A partial enlarged view of the top of the light box in the cross-section;

[0078] Fig.15 Shows Figure 2 A partial enlarged view of the middle insulating plate and circuit board and their surrounding components;

[0079] Fig.16 Shows Figure 8 A partial enlarged schematic diagram of the junction between the connecting plate and the through hole near the top;

[0080] Fig.17 A cross-sectional schematic diagram showing an assembly part in a light box in an embodiment of the utility model being assembled on a box body;

[0081] Fig.18 Figure 1The figure shows an exploded schematic diagram of a fire emergency lighting fixture according to an embodiment of the present utility model from a side front angle;

[0082] Fig.19 shows that it can be used to form a bend Fig.18 A schematic diagram of the structure of a plate body of a box in an emergency lighting fixture;

[0083] Fig. 20 Shows Fig. 22 A partial enlarged schematic diagram of the top (shoulder) of the middle lamp from the upper side;

[0084] Fig.21 Shows Fig. 22 A partial enlarged schematic diagram of the corner of the light box from the port angle;

[0085] Fig. 22 A side and rear perspective schematic diagram of a fire emergency lighting fixture according to an embodiment of the utility model is shown;

[0086] Fig.23 Shows Fig. 22 Schematic diagram of the cross-sectional structure of the fire emergency lighting fixture along the section line BB;

[0087] Fig.24 Shows Fig.23 A partial enlarged schematic diagram of the top of the cross-sectional structure in FIG.

[0088] In the description of the drawings, the same, similar or corresponding reference numerals represent the same, similar or corresponding units, elements or functions. DETAILED DESCRIPTION

[0089] The terms used in the description of the various embodiments described herein are only for the purpose of describing specific embodiments, and are not intended to be limiting. As used in the description of the various embodiments described and in the appended claims, the singular forms "a", "an" and "the" are intended to also include plural forms, unless the context clearly indicates otherwise. It will also be understood that the term "and / or" used herein refers to and encompasses any and all possible combinations of one or more items in the items listed in association. It will also be understood that the term "includes", "including", "comprises" and / or "comprising" when used in this specification specifies the presence of stated features, integers, steps, operations, elements and / or parts, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, parts and / or their groupings.

[0090] It should be understood that although the terms first, second, third, etc. may be used in the present disclosure to describe various information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, the first may also be referred to as the second, and vice versa, without departing from the scope of the present disclosure. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0091] The present application is further described below by way of examples, but the present application is not limited to the scope of the examples.

[0092] The bottom wall 1110 and a plurality of walls are erected from the bottom wall 1110 along the periphery of the bottom wall 1110 , and two adjacent walls among the plurality of walls are joined to each other to form a box corner 114 , and are enclosed in a direction away from the bottom wall 1110 to form a port 596 .

[0093] A cover body 15, covering the port 596;

[0094] The box body corners 114 form an arc transition surface to the outside. Fig.18 shown.

[0095] In the relevant embodiment, two walls of the box, such as wall 1112 and wall 1111, are joined to each other, which means that wall 1112 and wall 1111 are not an integrally formed structure or an integrally connected structure.

[0096] In some embodiments, the bottom wall 1110 and the cover 15 can be implemented as: the back plate and the front cover of the light box, respectively, located at the rear side and the front side of the light box. In other embodiments, the bottom wall 1110 and the cover 15 can be implemented as: the front plate and the back cover of the light box, respectively, located at the front side and the back side of the light box.

[0097] Optionally, the plurality of walls are four walls 1112, 1111, 1113, and the four walls and the bottom wall 1110 are formed by bending four protruding ends 1112', 1111', 1113' around a substantially cross-shaped plate body 111' toward each other, such as Fig.19 The bottom wall 1110 and the four walls 1112, 1111, 1113 together form the box body 111 of the light box.

[0098] The two opposite ends 1112', 1113' of the plate body 111' in the longitudinal direction L1 are bent toward each other to form an upper wall 1112' and a lower wall 1113' of the four walls; the two opposite ends 1111' of the plate body in the transverse direction T1 are bent toward each other to form two side walls 1111 of the four walls.

[0099] Combination Fig.18 , Fig.19As shown, the adjacent two ends 11111 and 11121 of the adjacent upper wall 1112 and side wall 1111 of the four walls have an extra length, and the two ends are bent toward each other and connected and fixed.

[0100] Among the two adjacent ends 11111 and 11121 on the adjacent upper wall 1112 and the side wall 1111 among the four walls, the end 11121 of the upper wall 1112 has an extra length, and the end 11121 of the upper wall 1112 is bent and connected and fixed to the end 11111 of the side wall 1111 .

[0101] Further optionally, two adjacent ends on two adjacent walls of the four walls 1112, 1111, 1113, such as end 11121 and end 11111, are overlapped and riveted with each other at a bent step position or a Z-shaped joint position. In this embodiment, end 11111 is formed into a box corner 114.

[0102] The upper wall 1112 and the two adjacent end portions 11111 and 11121 on the side wall 1111 are bent to form a box corner 114 having an arc transition surface. Correspondingly, the bottom wall 1110 has a curvature matching the arc transition surface at the box corner 114. Further, the bottom wall 1110 is bent at the box corner 114 to form an extension piece 11101, which extends toward the arc transition surface 114 and is adjacent to the arc transition surface 114 with a seam or seamlessly. Fig. 20 This prevents the bottom wall from being directly exposed to the outside, especially the end of the bottom wall from being exposed to the outside in the longitudinal direction, and the end face of the extended edge 11101 curved in the rounded direction may be sharp, but the side end face facing the corner 114 of the box body is not easy to cause harm to external users.

[0103] As shown in the figure, the light box 111 is in the shape of a rectangle. Through the enclosure structure of four walls, the rectangular light box is actually open to the outside on one surface to form a port 596. The arc transition surface of the box corner 114 smoothly transitions between two adjacent walls 1112, 1111, and 1113 that are perpendicular to each other, for example: the upper wall 1112 and the side wall 1111, or the lower wall 1113 and the side wall 1111.

[0104] Optionally, the outer periphery of the port 596 is raised to form a snap-fit ​​strip;

[0105] The cover body 15 further includes a cover body and a peripheral portion 151 extending outward from the cover body. The peripheral portion 151 is formed as an inner curling structure and is buckled and connected to the buckling strip.

[0106] Further optionally, at least part of the edge of the port 596 is retracted to form stepped portions 111231, 111232, and the buckle strip includes a plurality of raised positions 11123 arranged along the stepped portions 111231, 111232, such as Fig.21 , Fig. 22 , Fig.23 , Fig.24 shown. Fig.24 Shows Fig.23 The partially enlarged schematic diagram of the top of the cross-sectional structure is intended to more clearly reflect the structural relationship between the peripheral portion, the step portion and the buckle strip of the cover body. Therefore, only the cross-sectional view of the top of the light box from a side view angle is shown, and some other irrelevant elements are ignored.

[0107] The peripheral portion 151 is rolled inward and backward to be engaged with the plurality of protrusions 11123;

[0108] Among them, the stepped portions 111231 and 111232 include: a first extended edge 111231 formed by bending the edge of the port 596 toward the inside of the light box, and a second extended edge 111232 extending from the first extended edge 111231 toward the peripheral portion 151; a plurality of raised positions 11123 are arranged along the outer periphery of the second extended edge 111232, so as to engage with the inward and backward curling structure of the peripheral portion 151, and the peripheral portion 151 is accommodated in the stepped portions 111231 and 111232, so that the outer surface of the entire light box is flat.

[0109] Optionally, the light box of the emergency lighting fixture in some embodiments further includes a wire storage groove 200, which is formed by the bottom wall 1110 being recessed into the light box; the recess is in a convex shape, such as Fig. 22 As shown, the recess can also be shaped as a square or a rectangle. Optionally, its area is larger, and the proportion of the recessed wire storage groove to the bottom wall 1110 belongs to any of the following ranges: [40%, 90%], [50%, 80%], [60%, 70%], [40%, 60%], [50%, 70%], [60%, 90%], [70%, 90%].

[0110] In another embodiment, a fire emergency lighting fixture is also proposed, including the light box of any other embodiment. In addition, the emergency lighting fixture may also include a fixing position and an assembly part. The fixing position is recessed on the wall of the light box. The recessed fixing position may not penetrate the wall, or may be implemented as a through hole penetrating the wall. Preferably, the through hole is a countersunk through hole 119-1 (in some other embodiments, the countersunk through hole may also be referred to as a through hole). The assembly part has a protrusion 1141 formed on its surface, which is fixed in the through hole 119-1 on the wall, so that the assembly part is assembled on the light box.

[0111] The protrusion 1141 is preferably formed as a whole protruding from the surface of the assembly to form an integrally connected injection molded part / plastic part. In this case, the assembly is coated on the inside of the light box, and the protrusion 1141 or the head 777 of the protrusion is coated on the edge of the through hole, or coated on the outside of the light box.

[0112] Of course, the protrusion 1141 can also be manufactured separately from the assembly part, and then fixed and protruded on the surface of the assembly part by bonding or other methods.

[0113] Preferably, the head 777 of the protrusion 1141 extends into the countersunk head portion of the countersunk through hole 119-1, and the head 777 of the protrusion 1141 fills the countersunk head portion. Therefore, the head 777 of the protrusion 1141 expands in the countersunk head portion to form the following structure: the size of the head 777 of the protrusion 1141 is larger than the aperture of the through hole portion of the countersunk through hole 119-1.

[0114] The light box or assembly also includes a lamp holder 113. The upper wall 1112 is provided with a mounting hole 222 to accommodate the lamp holder 113. The peripheral portion of the lamp holder 113 extends toward the port 596 to form a buckle 1979, which is buckled and connected with the peripheral portion 151 of the cover 15. In this way, the cover 15 is more firmly connected to the port. The mounting hole 222 is connected to the port 596, thereby saving space on the box wall or allowing the light box to have a thinner structure.

[0115] The assembly further includes a fixing plate 16' and a fixing member 164';

[0116] The protrusion 1141 and the through hole 119 - 1 are correspondingly arranged on the fixing plate 16 ′ and the bottom wall 1110 . The protrusion 1141 is connected to the through hole 119 - 1 to fix the fixing plate 16 ′ to the inner side of the bottom wall 1110 .

[0117] The protrusions 1141 are distributed on the surfaces of the lamp holder 113, the fixing plate 16' and the fixing member 164'. The through holes 119-1 are correspondingly arranged at the installation positions of the lamp holder 113, the fixing plate 16' and the fixing member 164' on the box wall.

[0118] For example, the fixing member 164' spans the bottom wall 1110 and one or more of the four walls 1112, 1111, 1113, and is fixed relatively thereto. The protrusion 1141 and the through hole 119-1 are arranged on i) the fixing member 164' and ii) the upper wall or the lower wall, respectively. Through the fixed connection between the protrusion 1141 and the through hole 119-1, the fixing member 164' is fixed to a) the bottom wall 1110 and b) the upper wall / lower wall from the inside of the light box.

[0119] Of course, similarly, the protrusion 1141 and the through hole 119 - 1 are also correspondingly arranged around the peripheral portion of the lamp holder 113 and the mounting hole 222 .

[0120] It should be noted that in some of the following embodiments, since the size of the fixing plate is relatively large and it can be functionally divided into several parts such as insulation, fixing, and wire fixing, in these embodiments, the several parts included in the fixing plate may also be referred to as insulation plate, fixing plate, wire fixing plate, etc. The fixing plate in these embodiments, because its function is to fix the box body of the bending structure, thereby strengthening the structural strength of the box body, therefore, for this part of the fixing plate in the following embodiments, especially when it exists physically independently, in some of the other embodiments mentioned above, it may also be referred to as a fixing member.

[0121] Fig.17 A cross-sectional schematic diagram showing an assembly part in a light box in an embodiment of the utility model being assembled on a box body;

[0122] Figure 1-Figure 8 Most of them take emergency lighting fixtures / light boxes as examples, and provide structural diagrams of various panels in the light box as assembly parts assembled onto the box body, and also show the internal and external structures of such light boxes / light fixtures from different perspectives. Fig. 9 , Fig.10 Some plates used for bending to form a box are shown.

[0123] exist Figure 1-Figure 8 The light boxes of the embodiments in the drawings are implemented as emergency lighting light boxes (referred to as light boxes), and this example is used to provide a more specific and scenario-based description of the light boxes. However, it should be understood that the protection scope of this application also covers related technical solutions in other products such as emergency sign lamps, emergency sign lamp housings, and emergency sign light boxes, and the protection scope of this application shall be based on the scope of protection required by the claims.

[0124] like Fig.17 As shown, in this embodiment of the present application, a new box structure is proposed. The light box with this new box structure includes:

[0125] The box body 111 is recessed to form a fixing position 119';

[0126] The assembly part 0023 has a protrusion 1141' formed integrally thereon;

[0127] The protrusion 1141' is fixed in the fixed position, so that the assembly part 0023 is assembled on the box body 111, for example, it can be located on the inner wall of the box body 111, as shown in the figure, or the assembly part 0023 can also be assembled on the outer wall of the box body 111. In some embodiments, the assembly part 0023 refers to: a component / member to be installed or assembled on the box body.

[0128] Optionally, in some embodiments of the light box, the fixing position can be implemented as a through hole 119' that penetrates the wall of the box body 111, the protrusion 1141' extends into the through hole, and the head 777' of the protrusion 1141' protrudes out of the through hole 119', as shown in the figure. The head 777' extends along the box body 111 to the periphery of the through hole 119' ( Fig.17 Thus, the size of the head 777' and the assembly part 0023 are larger than the aperture of the through hole 119', and the head 777' engages the edge of the through hole 119'. Thus, the protrusion 1141' forms a (similar to) riveting / riveting structure for the through hole 119'.

[0129] Of course, optionally, the protrusion 1141' can be a heat-riveted part, the assembly part and the protrusion can be an integral injection molded part, etc. The mechanical coupling between the protrusion 1141' and the through hole 119' is further enhanced, and thus the firmness of the assembly part 0023 on the box body 111 is further improved.

[0130] Optionally, in some embodiments of the light box, the protrusion 1141 ′ and the assembly part 0023 are integrally connected plastic parts / injection molded parts, and the fixing position 119 ′ is a through hole opened on the box body 111 , and the protrusion fills and fixes the through hole.

[0131] It should be noted that in some embodiments, "integral with...", "integrally connected", "integrally formed", "integrally", "integrally", "integrally...", etc., mean being manufactured together at the same time, i.e., being manufactured as the same assembly part, rather than two separately manufactured assemblies that are subsequently joined together. In addition, the protrusion may also be referred to as "protrusion" for short. In some other embodiments, it is used as a fixing end and is adapted to the fixing position to form a fixed connection structure between the two.

[0132] Optionally, in some embodiments of the light box, the protrusion 1141' extends into the through hole, and the head of the protrusion protrudes out of the through hole 119' through the through hole. The head 777' extends along the outer wall of the box body 111 toward the periphery of the through hole 119', and the size of the head 777' is larger than the aperture of the through hole 119', and is engaged with the edge of the through hole 119'. Thus, the assembly part 0023 is assembled to the inner wall of the box body 111. Under this structure, a higher mechanical coupling degree between the component and the box body can be formed, thereby further improving the firmness of the assembly part 0023 on the box body 111. However, this structure is not suitable for the light box body. Fig.17 It is not shown in the figure, and can be combined with some other related embodiments and refer to Fig.16 , Figure 8 , Figure 7 etc for understanding.

[0133] Since the box wall is generally thin, the length of the protrusions such as columns adapted to the through holes is usually short, and the cross-section of the protrusions / columns can be circular, square, polygonal, or other irregular shapes.

[0134] Combine the following Figure 2 , Figure 11-Figure 15 The relevant embodiments of the present application are described in detail.

[0135] like Figure 1 As shown, the emergency lighting box of this embodiment includes:

[0136] A box body 111, the box body 111 includes a bottom wall 1110 and a plurality of walls 1111, 1112, 1113, the plurality of walls standing up from the bottom wall 1110 along the periphery of the bottom wall 1110 and enclosing the bottom wall 1110;

[0137] Insulation plate 16;

[0138] The light box 111 further includes a protrusion, such as a column 1141, and a fixing position, such as a through hole 119. The column 1141 and the through hole 119 are correspondingly arranged on the insulating plate 16 and the bottom wall 1110, and the column 1141 is connected to the through hole 119, so as to fix the insulating plate 16 to the inner side of the bottom wall 1110;

[0139] The circuit board 162 is clamped on the insulating plate 16 .

[0140] Optionally, the emergency lighting box of some embodiments further includes a wire fixing plate 163 and / or a fixing plate 164 .

[0141] The wire fixing plate 163 is provided with a wire passing hole 904 and a first wire clamping buckle 901 . The first wire clamping buckle 901 is arranged opposite to the wire passing hole 904 or the edge of the wire passing hole 904 to accommodate the wire therebetween.

[0142] The columns 1141 and the through holes 119 are also arranged on the fixing plate 164 and the bottom wall 1110 correspondingly. The fixing plate 164 is fixed to the inner side of the bottom wall 1110 through the connection between the columns 1141 and the fixing positions 119 .

[0143] Optionally, in some embodiments of the emergency lighting light box, the first part 9011 of the first wire clip 901 stands up from the edge of the wire hole 904, and the second part 9012 of the first wire clip 901 bends and extends toward the wire hole 904 or the edge of the wire hole 904, and the second part 9012 is spaced and opposite to the wire hole 901 or the edge of the wire hole to clamp the wire. Preferably, the edge of the wire hole 904 protrudes from the wire fixing plate 163, so as to be more conducive to cooperating with the first wire clip 901 to clamp the wire passing therebetween.

[0144] Optionally, in some embodiments of the emergency lighting light box, the insulating plate 16, the wire fixing plate 163 and the fixing plate 164 are sequentially arranged on the bottom wall 1110, and the insulating plate 16, the wire fixing plate 163 and the fixing plate 164 are connected as one piece; this integrated connection structure of the three allows the three to be assembled as a whole on the bottom wall 1110, improving the assemblability of the insulating plate 16, the wire fixing plate 163 and the fixing plate 164 in the box, especially when the three plates 16, 163, and 164 are integrally formed on the bottom wall 1110 by in-situ casting of plastic material, relative to the three plates having physically independent structures, this integrated connection structure of the three improves the manufacturability of the light box. In addition, this integrated connection structure of the three plates also improves the mechanical coupling degree of the three plates 16, 163, and 164 as a whole with the box 111, thereby further strengthening the overall structural strength of the box 111.

[0145] Optionally, in some embodiments of the emergency lighting light box, a second wire clip 902 is further provided on the wire fixing plate 163, and the first wire clip 901 and the second wire clip 902 are bent and extended in the direction of the cross-wire, and are offset and face each other, such as Fig.15 As shown, since the two points determine a straight line, the two wire buckles 901 and 902 can determine the basic direction of the wire and basically define a wire passing channel for the wire, and the staggered arrangement of the two wire buckles 901 and 902 makes it easier for the wire to be placed in the wire passing channel defined by the first wire buckle 901 and the second wire buckle 902. With the help of a structure that bends and extends in the direction of the cross-sectional wire, the first wire buckle 901 and the second wire buckle 902 can partially wrap around different positions on the wire from the side of the wire along the direction of the wire, thereby forming a more stable fixing structure for the wire.

[0146] Optionally, in some embodiments of the emergency lighting lamp box, a first raised area is formed on the wire fixing plate 163, the first part 9011 of the first wire clamping buckle 901 is located on the first raised area 905 or on the periphery of the first raised area 905, and the second part 9012 of the first wire clamping buckle 901 cooperates with the top of the first raised area 905 to clamp the wire. The wire hole 904 is opened on the first raised area 905, and the projection of the second part 9012 of the first wire clamping buckle 901 to the bottom wall 1110 covers the edge of the wire hole 119 and the periphery of the first raised area 905. In this way, after the second part 9012 and the top of the first raised area 905 clamp the wire, the wire is immediately bent out of the wire hole 904 on the first raised area 905, and its routing direction is changed. This structure continuously forms a clamping structure for the wire and a structure that forces the wire to bend in a smaller space on the first raised area 905, which is conducive to forming a more stable fixation of the wire.

[0147] Optionally, in some embodiments of the emergency lighting light box, a second raised area 903 is further formed on the wire fixing plate 163, and a second wire clip 902 is located at the periphery of the second raised area 903. The structure of the second wire clip 902 is similar to that of the first wire clip, and the first part (not marked in the figure) thereof stands up from the wire fixing plate 163, and the second part of the second wire clip 902 is bent from the first part. The projection of the second part 9022 of the second wire clip 902 to the bottom wall 1110 covers the periphery of the second raised area 903, and cooperates with the edge of the second raised area 903 to clip the wire. With this structure, a tortuous wire passage is formed at the edge of the second raised area 903. When the wire passes between the second wire clip 902 and the flat wire fixing plate 163 and continues to extend to the edge of the second raised area 903, it is forced to bend. Therefore, this structure has a better fixing effect on the wire. Preferably, the first raised area 905 is located on the second raised area 903, and the two raised areas and the wire holes are relatively compact in overall structure, effectively utilizing the internal space of the light box.

[0148] The fixing plate 164 extends from the inner side of the bottom wall 1110 to one or more of the upper wall 1112, the lower wall 1113 and the side wall 1111, and is fixed relative to the one or more box walls. Figure 2 , Fig.12 As shown, the fixing plate 164 in this embodiment extends across the bottom wall 1110 and the lower wall 1113, and is fixed to the bottom wall 1110 and the lower wall 1113, thereby strengthening the structural strength between the bottom wall 1110 and the lower wall 1113. Moreover, by means of the connection of the fixing plate 164, the coupling / fixed connection between the bottom wall 1110 and one or more of the upper wall 1112, the lower wall 1113 and the side wall 1111 is strengthened, which further strengthens the overall structural strength of the box body formed by bending the end of the cross-shaped plate body in some other embodiments.

[0149] The bottom wall 1110 defines a wire outlet hole 904 ′ corresponding to the position of the wire through hole 904 .

[0150] Optionally, in some embodiments of the emergency lighting lamp box, the protrusion and the fixing position are not limited to being implemented as the column 1141 and the through hole 119. In some alternatives, the protrusion and the fixing position can also be implemented as male and female buckles that match each other. Alternatively, in some alternatives, the protrusion can be implemented as a protrusion on the insulating plate 16 or the fixing plate 164, and the fixing position can be implemented as a recess on the bottom wall 1110; or, in other alternatives, the protrusion can also be implemented as a protrusion on the bottom wall 1110, and the fixing position is correspondingly implemented as a recess on the insulating plate 16 or the fixing plate 164. Compared with the prior art, the convex-concave matching connection between the insulating plate 16 and the bottom wall 1110 in these embodiments of the utility model is more convenient, whether the insulating plate 16 is integrally formed on the bottom wall 1110 by injection molding, or the column 1141 as the protrusion is pressed into the through hole 119 as the fixing position by external force, which improves the assemblability. The connection between the fixing plate 164 and the bottom wall 1110 is similar and will not be described in detail.

[0151] The raised portion includes a column 1141 raised on the insulating plate 16 and the fixing plate 164, the recess includes a through hole 119 penetrating through the bottom wall 1110, the column 1141 extends into and is fixed in the through hole 119, forming a chiseled / riveted structure, and the insulating plate 16 and the fixing plate 164 are integrally abutted / wrapped on the inner side of the bottom wall 1110. The abutting structure, in addition to direct surface contact between the insulating plate 16 and the bottom wall 1110, can also be implemented as a close and close structure, that is, it does not exclude the existence of a small gap between the insulating plate 16 and the bottom wall 1110, and they are only connected to each other at the raised portion and the fixed position.

[0152] Optionally, the emergency lighting lamp box of some embodiments further includes a plurality of snap plates 161, which stand upright from the insulating plate 16, and snap plate positions 1611, 1612 are symmetrically and / or relatively arranged on these snap plates 161, which are adapted to or correspond to the two opposite ends (not marked in the figure) of the circuit board 162. Since the snap plates 161 stand upright from the insulating plate 16, after the circuit board 162 is installed to the snap plate positions thereon, the circuit board 162 and the insulating plate 16 are not in contact, thereby enhancing the insulation isolation between the two. Among them, the circuit board 162 may be spaced apart from the insulating plate 16 due to the presence of the stopper 1612 in the following embodiments.

[0153] Further optionally, in some embodiments of the emergency lighting box, the clip positions 1611, 1612 include a stop portion 1612 and an introduction slope 1611 for the circuit board, the stop portion 1612 is closer to the insulating board relative to the introduction slope 1611, and the stop portion 1612 and the introduction slope 1611 are spaced apart from each other to clamp the end of the circuit board 162 introduced through the introduction slope 1611.

[0154] Optionally, in some embodiments of the emergency lighting box, a plurality of walls are enclosed in a direction away from the bottom wall 1110 to form a port, such as Figure 2 The light box further comprises a cover body 15 adapted to and covering the port.

[0155] The light box is in a rectangular parallelepiped shape, and the multiple walls are four walls 1111, 1112, 1113. The four walls 1111, 1112, 1113 and the bottom wall 1110 are formed by Fig. 9 or Fig.10 As shown in the figure, four protruding end portions 1111', 1112', 1113' around the substantially cross-shaped plate body 111' are bent toward each other.

[0156] The two opposite ends 1112' and 1113' of the plate body 111' in the longitudinal direction are bent toward each other to form an upper wall 1112 and a lower wall 1113 of the four walls; the two opposite ends 1111' of the plate body 111' in the transverse direction are bent toward each other to form two side walls 1111 of the four walls;

[0157] A gap 115 is formed between two adjacent walls 1111, 1112, 1113; and

[0158] The light box further includes a connecting plate 114 which fills the gap 115 and connects two adjacent walls among the four walls 1111 , 1112 , 1113 , for example, the upper wall 1112 and the side wall 1111 .

[0159] The column 1141 is arranged at both ends of the connecting plate 114. Correspondingly, the through hole 119 is opened at two opposite ends 11111, 11112 of two adjacent walls 1112, 1111. The column 1141 is protruded at both ends of the connecting plate 114, and the through hole passes through the box wall.

[0160] The column 1141 is protrudingly disposed on the fixing plate 164 , and the through hole 119 is correspondingly opened through one or more of the upper wall 1112 , the lower wall 1113 and the side wall 1111 .

[0161] The column 1141 extends into the through hole 119, and the head 777 of the column 1141 protrudes out of the through hole 119 through the through hole 119; the head 777 extends toward the periphery of the through hole 119 to a diameter larger than the through hole 119, thereby fixing the connecting plate 114 in the notch 115, or fixing the insulating plate 16 on the bottom wall 1110, or fixing the fixing plate 164 on one or more of a) the bottom wall 1110 and b) the upper wall 1112, the lower wall 1113 and the side wall 1111.

[0162] like Figure 2 The box body shown in the accompanying drawings includes a bottom wall 1110, and four walls 1111, 1112, and 1113 surrounding the bottom wall 1110 and connected to the bottom wall 1110; the four walls are enclosed along the periphery of the bottom wall 1110 and define an open port (not marked in the figures) in a direction away from the bottom wall 1110, and notches 115 are provided at the corners of the box body distributed circumferentially along the port.

[0163] The connecting plate 114 is spliced ​​to the box body 111 through the edges 11121 and 11111 of the notch 115 to form the box body corners.

[0164] The cover 15 is formed with a buckling edge extending toward the port, on which a first buckle 117 is arranged, and a second buckle 117 is arranged around the port. The cover 15 is covered on the port by the buckling fit of the second buckle 117 and the first buckle 117. Figure 4 , Figure 5 , Figure 7 , Figure 8 shown.

[0165] The four walls 1111, 1112, 1113 include an upper wall 1112 and a lower wall 1113 relative to each other, which are formed by the plate body 111' or the two opposite ends 1112', 1113' of the plate body 111' in the longitudinal direction L1 being bent toward each other. The four walls 1111, 1112, 1113 also include two opposite side walls 1111, which are formed by the two opposite ends 1111' of the plate body 111' in the transverse direction T1 being bent toward each other. The four walls 1111, 1112, 1113 are bent integrally and vertically erected along the periphery of the main body 1110' toward the inner side of the main body 1110', and two adjacent walls are spaced apart from each other to form a gap 115.

[0166] In the above embodiment, the bottom wall 1110 and the four walls 1111, 1112, 1113 of the box body 111 are surrounded by four protruding ends 1111', 1112', 1113' around a substantially cross-shaped plate body 111' (such as Fig. 9 The plate body 111' is formed by bending toward each other as defined by the dotted line outline. Fig. 9As shown, it includes a body 1110' and four protruding ends 1111', 1112', 1113' around the body 1110'. On the cross-shaped plate 111', two adjacent ends are not directly connected, for example, the corners 115' between the ends 1112' and 1111' on the body 1110' are spaced apart from each other without direct contact, so that when the four ends 1111', 1112', 1113' are bent toward each other to form the box body 111, a gap 115 will exist between two adjacent walls of the four walls 1111, 1112, 1113 of the box body 111. Those skilled in the art can understand that the bending of the four ends 1111', 1112', 1113' toward each other means that the four ends are bent toward the same side / inner side of the plate body.

[0167] The two opposite ends 1112' and 1113' of the plate body 111' in the longitudinal direction L1 are bent toward each other to form an upper wall 1112 and a lower wall 1113. The two opposite ends 1111' of the plate body 111' in the transverse direction T1 are bent toward each other to form two side walls 1111 of the box body.

[0168] Of course, this kind of bent structure box can also be based on Fig.10 Another plate body 111" shown in the figure is constructed, and the plate body 111" includes a main body 1110" (defined by the dotted outline in the figure) and four protruding ends 1111', 1112', and 1113' around the main body 1110". On this plate body 111", two adjacent ends are directly connected, for example, between the end 1112" and the end 1111", the corner 115" on the main body 1110" is directly in contact. The four ends around the cross-shaped plate body 111" are bent toward each other to form the four walls of the box body, and are enclosed at the far end (i.e., in the direction away from the main body of the plate body) to form an open port of the box body. In the upper wall, lower wall and side wall of the box body formed after the four ends are bent, the opposite ends on the two adjacent walls (not shown in the figure) are basically in direct contact, or due to the plate body processing technology or tolerance, only a very small gap (not shown in the figure) is left between the opposite ends on the two adjacent walls. This very small gap is compared to Figure 2 The gap 115 in is negligible, that is, Fig.10On the box body formed by bending the plate body, two adjacent walls among the four walls are joined to each other, and there is no need for an independent connecting plate to fill and connect the two adjacent walls of this box body. Instead, the two adjacent walls can be further connected and fixed by welding, gluing, and adhesive connection. Typical joining techniques include welding (such as ultrasonic welding), gluing, sizing, pressure hot melting, etc. Of course, the two adjacent walls can also be indirectly joined to each other through a separate connecting plate. This has been explained and illustrated in other embodiments and will not be repeated here. In these embodiments, the two adjacent walls are structures that are adjacent to each other or separated from each other to form a gap therebetween, rather than a structure connected as a whole. This new structural design makes the box structure not limited to stretch forming, but can also be bent and formed, thereby improving manufacturability.

[0169] In some embodiments described above or below, as shown in the figure, two adjacent walls of the box body 111 are not coplanar, for example, perpendicular to each other. Correspondingly, the connecting plate 114 is formed as: an arc-shaped connecting plate between two adjacent walls of the four walls, for example, between the upper wall and the side wall, and between the lower wall and the side wall, such as Figure 2 , Figure 3 As shown, the arc shape of the connecting plate located at the corner of the box body may also be called a fillet in other embodiments. Alternatively, the connecting plate 114 may also be formed as a right-angle connecting plate, which is not shown in the figure.

[0170] The box body is made of metal and is suitable for bending. The plate body is a color-coated steel plate. Compared with plastic material, the color-coated steel plate has a higher structural strength. The connecting plate is preferably made of plastic. Compared with metal material, the connecting plate made of plastic is easier to be processed to the gap, which improves the manufacturability of the light box / lamp. The connecting plate is filled into the gap and connected to the edge of the gap to form a more complete box body and enhance the structural strength of the box body. If the box body itself and the connecting plate are both made of plastic material, the boundary between the wall of the box body and the connecting plate is unclear. If the box body itself is made of metal materials such as color-coated steel plates, and the connecting plate is made of plastic material, the boundary between the wall of the box body and the connecting plate is clearer. However, the above two situations both belong to the scope of protection of this application. It should be understood that the relevant description is only used to illustrate the present application and not to limit the scope of the present application. The scope of protection of this application is limited by the scope of the claims, and other embodiments fall within the scope of protection of the claims.

[0171] Optionally, the light box also includes a protrusion 1141, which is formed at both ends of the connecting plate 114; the two end portions 11121 and 11111 of the two adjacent walls, which are close to each other, are recessed to form a fixed position, which is adapted to the protrusion 1141; the connection method between the protrusion 1141 and the fixed position is one of injection molding connection, molded connection, tight fit, press fit, convex-concave fit, chemical bonding, hot riveting or snap fit.

[0172] Further optionally, if Figure 7 , Figure 8 As shown, the protrusion 1141 is a column, and the fixing position is a through hole 119 that passes through the box body. The column extends into the through hole 119, and the head 777 of the column protrudes out of the through hole 119 through the through hole 119; the head 777 extends to the periphery of the through hole 119 to a diameter larger than the through hole 119. In terms of local shape, the cross-section of the connection structure formed by the column in the through hole is roughly "H" shaped, and the edge of the through hole 119 is engaged, as shown in FIG. Figure 8 As shown. From the overall process of the manufacturing method, the box body 111 is punched to form a through hole 119, and then the box body 111 is placed in an injection molding machine (not shown in the figure). While the plastic connecting plate 114 is being formed, the plastic material also flows into the through hole 119, fixing the plastic connecting plate 114 on the through hole 119. The connection section between the connecting plate 114 and the through hole 119 forms an "H" shape, thereby clamping the edge of the through hole 119. Similarly, the connection structure between the protrusion and the countersunk through hole between other fixing plates, fixing parts, lamp holders and other assembly parts and the box body can also be achieved in the above manner.

[0173] Optionally, the riveted / anchored connection structure between a) the connecting plate and its protrusion and b) the through hole can be formed by hot melting the prefabricated plastic parts of the "integrally connected connecting plate and column", or, the "integrally connected connecting plate and column" can be formed by in-situ injection molding at the through hole of the box body, and the column is also connected to the through hole at the same time.

[0174] Preferably, the connecting plate 114 can be processed onto the light box by injection molding, but the prefabricated thermoplastic connecting plate 114 can also be connected to the through holes 119 of the ends 11111, 11121 of two adjacent walls 1111, 1112 by hot-melt connection.

[0175] Optionally, the light box 11 also includes a lamp holder 113, and a mounting hole 222 is provided on the upper wall to accommodate the lamp holder 113; the lamp holder is integrally connected to the connecting plate 114 via a connector 888. If the combination of the lamp holder and the connecting plate is prefabricated separately, the integrated structure allows the combination of the two components to be assembled to the box as a whole, thereby improving the assembly efficiency and the assemblability of the light box. Moreover, the mechanical coupling between the lamp holder and the connecting plate is higher, and the structural stability is better. Since the connecting plate is connected to the upper wall and the side wall, and the lower wall and the side wall, the mechanical coupling between the upper wall and the side wall, and the lower wall and the side wall is also higher, and the structural stability is better.

[0176] In some of the above embodiments, the connecting plate 114 filling the gap 115 is enclosed together with the upper wall 1112, the lower wall 1113, and the side wall 1111 to ensure the airtightness of the box body, and also connects the adjacent parts of the two adjacent walls along the circumference of the port of the box body, such as the end 11121 and the end 11111. The adjacent walls are fixedly connected by the connecting plate, and then the four walls are connected as a whole by the connecting plates at the four corners, which strengthens the structural strength between the walls of the bending structure and the structural strength of the box body as a whole. At the same time, the connecting plates in the gaps at the four corners also form the box body edges perpendicular to the bottom wall 1110, which can be rounded or right angles. The bottom wall of the box body is equivalent to the main body on the plate body in some other embodiments, so it is also called the main body in the description context of the plate body.

[0177] In addition, if the structural strength of the box body is to be further enhanced, a fixing plate 164 may be provided in some embodiments, and the protrusion 1141 is also arranged on the fixing plate 164, and the fixing positions are correspondingly distributed on the bottom wall 1110, the upper wall 1112, the lower wall 1113 and the side wall 1111. The fixing plate 164 is fixed to a) the inner surface of the bottom wall 1110 and the inner surface of the upper wall 1112, or b) the inner surface of the bottom wall 1110 and the inner surface of the lower wall 1113, or c) the inner surface of the bottom wall 1110 and the inner surface of the side wall 1111 by covering the protrusion 1141. Because the fixing plate 164 extends along the inner wall of the box body 111 and spans the bottom wall 1110 and one of the four walls, a higher structural strength is formed between the four walls and the bottom wall, thereby improving the overall structural strength of the box body.

[0178] As can be seen from the figure, the structure 111 formed by the plate 111" or the plate 111" being bent can be called a box. After the lamp holder seat, the connecting plate and the cover are assembled on the box 111, it can be defined as a fire emergency lighting light box (or simply a light box, emergency lighting light box). After further assembling the lamp holder and other components, it can be defined as a fire emergency lighting fixture (or simply an emergency lighting fixture, emergency lighting, lamp).

[0179] In some embodiments, the emergency lighting fixture further comprises: a lamp head 17, the bottom of which forms a ball head structure 501, such as Figure 2 , Figure 6 shown.

[0180] The lamp holder 113 is provided with a ball socket (not marked in the figure) adapted to the ball head structure 501;

[0181] The ball head structure 501 can be rotatably installed in the ball socket, and a first wire-passing channel (not shown in the figure) is opened at the bottom of the ball socket, which is connected to the interior of the light box 111; and a stopper 1711 is also provided on the outer side of the bottom of the ball head structure 501, and the stopper 1711 extends into the first wire-passing channel and abuts against the edge / inner wall of the first wire-passing channel as the ball head structure 501 rotates.

[0182] By means of the stopper 1711 on the outer side of the bottom of the ball head structure 501, when the rotation amplitude of the ball head structure 501 in the ball socket reaches a certain threshold, the stopper 1711 can abut against the inner wall of the first wire passage to stop the rotation, thereby preventing the ball head structure 501 from falling off from the lamp holder 113 due to excessive rotation amplitude during the rotation in the ball socket.

[0183] Each embodiment in this specification is described in a progressive manner. The same or similar parts between the embodiments can be referred to each other. Each optional technical feature can be combined with other embodiments in any reasonable manner. The contents of each embodiment and under each title can also be combined in any reasonable manner. Each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0184] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms of "a", "" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings, and "multiple" generally includes at least two. It should be understood that the term "and / or" used in this article is merely an association relationship describing associated objects, indicating that three relationships may exist, for example, A and / or B, which can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0185] Although the specific implementation methods of the present application are described above, those skilled in the art should understand that this is only for illustration, and the protection scope of the present application is defined by the appended claims. Those skilled in the art may make various changes or modifications to these implementation methods without departing from the principles and essence of the present application, but these changes and modifications all fall within the protection scope of the present application.

Claims

1. A light box, characterized in that: include: bottom wall; A plurality of walls, the plurality of walls rising from the bottom wall along the periphery of the bottom wall, adjacent two of the plurality of walls being joined to each other to form a corner of the box body, and enclosing in a direction away from the bottom wall to form a port; The corners of the box body form an arc transition surface outward; The bottom wall is bent at the corner of the box body to form an extension piece, which extends toward the arc transition surface.

2. The light box according to claim 1, characterized in that: Two adjacent ends of two adjacent walls among the plurality of walls are bent toward each other and connected and fixed; or, One of two adjacent ends of two adjacent walls among the plurality of walls is bent and extended toward the other and connected and fixed to the other; or At least one of two adjacent ends of two adjacent walls among the plurality of walls is bent and connected and fixed to the other; or Two adjacent ends of two adjacent walls among the plurality of walls are bent and extended toward each other and are connected to each other.

3. The light box according to claim 2, characterized in that: The light box also includes a cover body, covering the port; The cover further comprises a cover body and a peripheral portion extending outwardly from the cover body; The bottom wall or the extension piece has a curvature at the corner of the box body that matches the arc transition surface; The light box is in a rectangular parallelepiped shape, and the multiple walls are four walls; the four walls include an upper wall, a lower wall and two side walls; the arc transition surface smoothly transitions between two adjacent walls that are perpendicular to each other among the four walls; The extension piece is adjacent to the arc transition surface with or without seams.

4. The light box according to claim 3, characterized in that: The end section of one of the two adjacent ends on two adjacent walls of the four walls is bent inwardly to form a step position and overlapped with the end section of the other one.

5. The light box according to claim 4, characterized in that: The four walls and the bottom wall are formed by bending four protruding ends of a substantially cross-shaped plate body toward each other; The two opposite ends of the plate body in the longitudinal direction are bent toward each other to form the upper wall and the lower wall; the two opposite ends of the plate body in the transverse direction are bent toward each other to form the two side walls.

6. The light box according to claim 5, characterized in that: The plate body is a metal plate body, and the metal plate body is a color-coated steel plate.

7. The light box according to any one of claims 3 to 6, characterized in that: The outer peripheral edge of the port is raised to form a buckle strip; The peripheral portion is formed into an inner curling structure and is buckled and connected to the buckling strip; The peripheral portion includes corners of the cover body corresponding to the corners of the box body and is formed into rounded corners.

8. The light box according to claim 7, characterized in that: At least part of the edge of the port is retracted inward to form a stepped portion, and the buckle strip includes a plurality of protrusions arranged along the stepped portion; The peripheral portion is rolled inwardly and backwardly to be engaged with the plurality of raised positions; Wherein, the stepped portion includes: a first extension formed by bending the edge of the port toward the inner side of the light box, and a second extension extending from the first extension toward the peripheral portion; and the plurality of protrusions are arranged along the outer periphery of the second extension.

9. The light box according to claim 1 or 2, characterized in that: The outer peripheral edge of the port is raised to form a buckle strip; The light box also includes a cover body, covering the port; The cover body further comprises a cover body, a peripheral portion extending outward from the cover body, the peripheral portion being formed as an inner curling structure and being buckled and connected to the buckling strip; The peripheral portion of the cover body includes cover body corners corresponding to the corners of the box body and is formed into rounded corners.

10. The light box according to claim 9, characterized in that: At least part of the edge of the port is retracted inward to form a stepped portion, and the buckle strip includes a plurality of protrusions arranged along the stepped portion; The peripheral portion is rolled inwardly and backwardly to be engaged with the plurality of raised positions; Wherein, the stepped portion includes: a first extension formed by bending the edge of the port toward the inner side of the light box, and a second extension extending from the first extension toward the peripheral portion; and the plurality of protrusions are arranged along the outer periphery of the second extension.

11. The light box according to any one of claims 3 to 6, characterized in that: It also includes a wire storage groove, which is formed by the bottom wall being recessed into the light box; the recess is convex or square, and its area accounts for the proportion of the bottom wall that belongs to any of the following ranges: [40%, 90%], [50%, 80%], [60%, 70%], [40%, 60%], [50%, 70%], [60%, 90%], [70%, 90%].

12. The light box according to claim 1 or 2, characterized in that: It also includes a wire storage groove, which is formed by the bottom wall being recessed into the light box; the recess is convex or square, and its area accounts for the proportion of the bottom wall that belongs to any of the following ranges: [40%, 90%], [50%, 80%], [60%, 70%], [40%, 60%], [50%, 70%], [60%, 90%], [70%, 90%].

13. A fire emergency lighting fixture, characterized in that: Comprising the light box as described in any one of claims 3-8, 11.

14. The fire emergency lighting fixture according to claim 13, characterized in that: Also includes: A fixed position, a depression formed on the wall of the light box; The assembly part has a protrusion formed on its surface and is fixed in the fixing position, so that the assembly part is assembled on the light box.

15. The fire emergency lighting fixture according to claim 14, characterized in that: The protrusion is integrally formed on the surface of the assembly part to form an integrally connected injection molded part / plastic part; the fixing position is a through hole; Wherein, the through hole is a countersunk through hole; the head of the protrusion extends to the countersunk head portion of the countersunk through hole, the head of the protrusion fills the countersunk head portion, and the head of the protrusion expands in the countersunk head portion so that its size is larger than the aperture of the through hole portion of the countersunk through hole.

16. The fire emergency lighting fixture according to claim 15, characterized in that: The fixing position is provided on the bottom wall of the light box; the protrusion passes through the through hole and is embedded / riveted into the through hole; The head of the protrusion extends to the outside of the light box, and the head is extended / expanded to a diameter larger than the aperture of the through hole; The assembly part is covered on the inner side of the light box, and the raised part covers / sticks to the edge of the through hole.

17. The fire emergency lighting fixture according to claim 16, characterized in that: The assembly further includes a fixing plate; The protrusion and the through hole are arranged on the fixing plate and the bottom wall correspondingly, and the protrusion is connected to the through hole to fix the fixing plate to the inner side of the bottom wall.

18. The fire emergency lighting fixture according to claim 17, characterized in that: The assembly also includes a lamp holder and / or a fixing member; The upper wall is provided with a mounting hole for accommodating the lamp holder, and the mounting hole is communicated with the port; The periphery of the lamp holder extends toward the port to form a buckle, which is buckled and connected with the peripheral part; The protrusion and the through hole are also arranged correspondingly around the peripheral portion of the lamp holder and the surrounding of the mounting hole; The fixing member spans a) one or more of the four walls and b) the bottom wall, and is relatively fixed thereto; the protrusion and the through hole are also correspondingly arranged on i) the fixing member and ii) the bottom wall and / or the upper wall and / or the lower wall; Through the fixed connection between the protrusion and the through hole, the fixing member is fixed to a) the bottom wall and b) the upper wall / the lower wall from the inner side of the light box.

19. The fire emergency lighting fixture according to claim 18, characterized in that: The fire emergency lighting fixture also includes a lamp cap, the bottom of which forms a ball head structure; The lamp holder is provided with a ball socket adapted to the ball head structure; The ball head structure is rotatably mounted in the ball socket, and a first wire-passing channel is provided at the bottom of the ball socket, communicating with the interior of the emergency equipment box; and a stopper is also provided at the outer side of the bottom of the ball head structure, and the stopper extends into the first wire-passing channel and abuts against the edge / inner wall of the first wire-passing channel as the ball head structure rotates; Two adjacent ends of two adjacent walls among the four walls overlap each other at a bent step position or a Z-shaped joint position; The bottom wall and the cover body are respectively: the back plate and the surface cover of the light box; or, The bottom wall and the cover body are respectively: the front plate and the rear cover of the light box.

20. The fire emergency lighting fixture according to any one of claims 14 to 17, characterized in that: The fire emergency lighting fixture also includes a lamp cap, the bottom of which forms a ball head structure; The assembly also includes a lamp holder, the upper wall is provided with a mounting hole for accommodating the lamp holder, and the mounting hole is communicated with the port; The lamp holder is provided with a ball socket adapted to the ball head structure; The ball head structure is rotatably mounted in the ball socket, and a first wire-passing channel is provided at the bottom of the ball socket, communicating with the interior of the emergency equipment box; and a stopper is also provided at the outer side of the bottom of the ball head structure, and the stopper extends into the first wire-passing channel and abuts against the edge / inner wall of the first wire-passing channel as the ball head structure rotates; Two adjacent ends of two adjacent walls among the four walls are overlapped and riveted with each other at a bent step position or a Z-shaped joint position; The bottom wall and the cover body are respectively: the back plate and the surface cover of the light box; or The bottom wall and the cover body are respectively: the front plate and the rear cover of the light box.

21. A fire emergency lighting fixture, characterized in that: Comprising the light box as described in any one of claims 1-2, 12.

22. The fire emergency lighting fixture according to claim 21, characterized in that: Also includes: A fixed position, a depression formed on the wall of the light box; The assembly part has a protrusion formed on its surface and is fixed in the fixing position, so that the assembly part is assembled on the light box.

23. The fire emergency lighting fixture according to claim 22, characterized in that: The protrusion is formed integrally on the surface of the assembly part to form an integrally connected injection molded part / plastic part; the fixing position is a through hole; Wherein, the through hole is a countersunk through hole; the head of the protrusion extends to the countersunk head portion of the countersunk through hole, the head of the protrusion fills the countersunk head portion, and the head of the protrusion expands in the countersunk head portion so that its size is larger than the aperture of the through hole portion of the countersunk through hole.

24. The fire emergency lighting fixture according to claim 23, characterized in that: The fixing position is provided on the bottom wall of the light box; the protrusion passes through the through hole and is embedded / riveted into the through hole; The head of the protrusion extends to the outside of the light box, and the head is extended / expanded to a diameter larger than the aperture of the through hole; The assembly part is covered on the inner side of the light box, and the raised part covers / sticks to the edge of the through hole.

25. The fire emergency lighting fixture according to claim 24, characterized in that: The assembly further includes a fixing plate; The protrusion and the through hole are arranged on the fixing plate and the bottom wall correspondingly, and the protrusion is connected to the through hole to fix the fixing plate to the inner side of the bottom wall.

26. The fire emergency lighting fixture according to claim 25, characterized in that: It also includes a cover body, which covers the port; The cover further comprises a cover body and a peripheral portion extending outwardly from the cover body; The assembly also includes a lamp holder and / or a fixing member; The light box is in a rectangular parallelepiped shape, and the multiple walls are four walls; the four walls include an upper wall, a lower wall and two side walls; The upper wall is provided with a mounting hole for accommodating the lamp holder, and the mounting hole is communicated with the port; The periphery of the lamp holder extends toward the port to form a buckle, which is buckled and connected with the peripheral part; The protrusion and the through hole are also arranged correspondingly around the peripheral portion of the lamp holder and the surrounding of the mounting hole; The fixing member spans a) one or more of the four walls and b) the bottom wall, and is fixed relatively thereto; the through holes are also arranged on i) the bottom wall and ii) the upper wall / the lower wall, and the protrusions are also arranged on the fixing member corresponding to the through holes; The fixing member is fixed to a) the bottom wall and b) the upper wall / the lower wall from the inner side of the light box through the fixed connection between the protrusion and the through hole.

27. The fire emergency lighting fixture according to claim 26, characterized in that: The fire emergency lighting fixture also includes a lamp cap, the bottom of which forms a ball head structure; The lamp holder is provided with a ball socket adapted to the ball head structure; The ball head structure is rotatably mounted in the ball socket, and a first wire-passing channel is provided at the bottom of the ball socket, communicating with the interior of the emergency equipment box; and a stopper is also provided at the outer side of the bottom of the ball head structure, and the stopper extends into the first wire-passing channel and abuts against the edge / inner wall of the first wire-passing channel as the ball head structure rotates; Two adjacent ends of two adjacent walls among the four walls overlap each other at a bent step position or a Z-shaped joint position; The outer peripheral edge of the port is raised to form a buckle strip; The peripheral portion is formed into an inner curling structure and is buckled and connected to the buckling strip; The peripheral portion includes corners of the cover body corresponding to the corners of the box body, which are formed into rounded corners; At least part of the edge of the port is retracted inward to form a stepped portion, and the buckle strip includes a plurality of protrusions arranged along the stepped portion; The peripheral portion is rolled inwardly and backwardly to be engaged with the plurality of raised positions; The stepped portion includes: a first edge extending from the edge of the port bent toward the inner side of the light box, and a second edge extending from the first edge toward the peripheral portion; the plurality of protrusions are arranged along the outer periphery of the second edge; The bottom wall and the cover body are respectively: the back plate and the surface cover of the light box; or, The bottom wall and the cover body are respectively: the front plate and the rear cover of the light box.

28. The fire emergency lighting fixture according to claim 27, characterized in that: The fire emergency lighting fixture also includes a lamp cap, the bottom of which forms a ball head structure; The light box is in a rectangular parallelepiped shape, and the multiple walls are four walls; the four walls include an upper wall, a lower wall and two side walls; The assembly also includes a lamp holder, the upper wall is provided with a mounting hole for accommodating the lamp holder, and the mounting hole is communicated with the port; The lamp holder is provided with a ball socket adapted to the ball head structure; The ball head structure is rotatably installed in the ball socket, and a first wire-passing channel is opened at the bottom of the ball socket, connecting to the interior of the emergency equipment box; and a stopper is also provided on the outer side of the bottom of the ball head structure, which extends into the first wire-passing channel and abuts against the edge / inner wall of the first wire-passing channel as the ball head structure rotates.

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