Fire emergency lamp

Abstract

The utility model provides a fire-fighting emergency lamp which comprises a shell, a plurality of light uniformizing cavities are formed in the shell, profiling light outlets communicated to the outside of the shell are formed in the front sides of the light uniformizing cavities, and reflection parts are arranged on the rear sides of the light uniformizing cavities; the light source assembly comprises a circuit board and a plurality of lamp beads arranged on the circuit board, the circuit board extends into each light uniformizing cavity, and at least one lamp bead is arranged in each light uniformizing cavity; the lamp bead is located between the reflection part and the profiling light outlet in the direction from the front side to the rear side of the light uniformizing cavity, and the reflection part gradually and obliquely extends towards the profiling light outlet in the direction away from the lamp bead. Compared with the prior art, the fire-fighting emergency lamp has the advantages that light rays emitted by the lamp beads are reflected in the light uniformizing cavity and then are emitted from the profiling light outlet, so that the brightness of the light rays at different positions of the profiling light outlet is more uniform, and the light source assembly is more stable and convenient to install.

Description

Technical Field

[0001] The utility model relates to the technical field of lamps, in particular to a fire emergency lamp. Background Art

[0002] Fire emergency lights are a guarantee for safety emergencies in public places and a mandatory measure for public fire protection. They have a wide range of uses and are arranged in a relatively complex environment. Among them, fire emergency lighting / sign lights are usually installed in fire escape passages. When power outages, fire alarms, etc. occur, they can realize emergency lighting and escape guidance functions.

[0003] The internal light path of existing fire emergency lights is usually as follows: the lamp beads emit light, the light passes through the diffuser plate, and then is emitted through a light outlet with a specific shape. However, this design easily causes the position where the light outlet corresponds to the lamp beads to be brighter, resulting in uneven light output. In addition, different numbers of lamp beads need to be arranged according to the shape of the light outlet, which is relatively cumbersome. In addition, the provision of the diffuser plate also easily increases the thickness of the fire emergency light, resulting in a more abrupt appearance after installation. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings and deficiencies in the prior art and provide a fire emergency light.

[0005] One embodiment of the present invention provides a fire emergency light, comprising:

[0006] A housing having a plurality of light balancing cavities disposed therein, wherein a shaped light outlet communicating with the outside of the housing is disposed on the front side of the light balancing cavity, and a reflective portion is disposed on the rear side of the light balancing cavity;

[0007] A light source assembly includes a circuit board and a plurality of lamp beads arranged on the circuit board, wherein the circuit board extends into each of the light-distributing cavities, and each of the light-distributing cavities has at least one lamp bead arranged therein;

[0008] The lamp bead is located between the reflective portion and the shaped light outlet in the direction from the front side to the rear side of the light-evening cavity, and the reflective portion gradually extends obliquely toward the shaped light outlet in the direction away from the lamp bead.

[0009] In some optional implementations, a plurality of the lamp beads are arranged in each of the light averaging cavities.

[0010] In some optional embodiments, the plurality of light averaging cavities are divided into at least one first light averaging cavity and at least one second light averaging cavity, the distance between the shaped light outlet of the first light averaging cavity and the corresponding lamp bead located in the first light averaging cavity is greater than a preset distance, and the distance between the shaped light outlet of the second light averaging cavity and the corresponding lamp bead located in the second light averaging cavity is not greater than the preset distance;

[0011] Wherein, a light shielding plate is provided in the second light-averaging cavity, and the light shielding plate is arranged on a side of the lamp bead facing the contoured light outlet.

[0012] In some optional embodiments, the sunshade is connected to the housing via a connecting portion.

[0013] In some optional embodiments, a plurality of first positioning grooves are provided on the circuit board, and parts of the connecting portion are located in the first positioning grooves.

[0014] In some optional embodiments, a plurality of partition plates are provided in the shell, and the partition plates divide the interior of the shell into a plurality of the light-averaging cavities.

[0015] In some optional embodiments, a limiting groove is formed between the end of the partition plate and the inner wall of the shell, and the circuit board is arranged in the limiting groove.

[0016] In some optional embodiments, a plurality of second positioning grooves are provided on the circuit board, and portions of the partition plate are located in the second positioning grooves.

[0017] In some optional embodiments, a plurality of latches arranged around the circuit board are provided in the housing, and the latches are engaged with the circuit board to limit the position of the circuit board relative to the limiting groove.

[0018] In some optional embodiments, the shell includes a front panel and a rear shell connected to each other, a plurality of the light averaging cavities are formed between the front panel and the rear shell, the reflecting portion and the circuit board are arranged on the rear shell, and the contoured light outlet is arranged on the front panel.

[0019] Compared with the existing technology, in the fire emergency light of the present invention, the light emitted by the lamp bead is reflected in the uniform light cavity and then emitted from the contoured light outlet, so that the brightness of the light from different positions of the contoured light outlet is more uniform, and the installation of the light source component is more stable and convenient, the overall structure is simple, and the production is convenient.

[0020] In order to more clearly understand the present invention, the specific embodiments of the present invention will be described below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural diagram of a fire emergency light according to an embodiment of the present invention;

[0022] Figure 2 This is a cross-sectional view of a fire emergency light according to an embodiment of the present invention;

[0023] Figure 3This is a schematic structural diagram of a partial structure of a fire emergency light according to an embodiment of the present invention;

[0024] Figure 4 An exploded view of a partial structure of a fire emergency light according to an embodiment of the present invention;

[0025] Figure 5 This is an exploded view of a fire emergency light according to one embodiment of the present invention.

[0026] Description of reference numerals:

[0027] 10. Shell; 11. Light-distributing cavity; 111. Contoured light outlet; 112. Reflecting portion; 12. First light-distributing cavity; 13. Second light-distributing cavity; 131. Sunshade; 132. Connecting portion; 14. Partition plate; 15. Limiting groove; 16. Fastener; 17. Front plate; 18. Back shell; 20. Light source assembly; 21. Circuit board; 22. Lamp beads; 23. First positioning groove; 24. Second positioning groove. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. In the description of the present invention, unless otherwise specified, "multiple" means 2 or more, and "several" means 1 or more. In addition, unless otherwise specified, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0030] In the description of this utility model, unless otherwise expressly specified or limited, the terms "installed," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0031] In the description of this utility model, reference to the terms "one embodiment," "some optional implementations," or "some optional embodiments" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0032] See also Figures 1 to 3 One embodiment of the present invention provides a fire emergency light, comprising:

[0033] The housing 10 has a plurality of light balancing cavities 11 disposed therein. A shaped light outlet 111 communicating with the outside of the housing 10 is disposed on the front side of the light balancing cavity 11 , and a reflective portion 112 is disposed on the rear side of the light balancing cavity 11 .

[0034] The light source assembly 20 includes a circuit board 21 and a plurality of lamp beads 22 arranged on the circuit board 21. The circuit board 21 extends into each light-distributing cavity 11. At least one lamp bead 22 is arranged in each light-distributing cavity 11. By arranging all the lamp beads 22 on the circuit board 21 and installing the circuit board 21 on the housing 10, the position of the lamp beads 22 can be fixed, making installation easy.

[0035] Among them, the lamp bead 22 is located between the reflecting part 112 and the shaped light outlet 111 in the direction from the front side to the rear side of the light-distributing cavity 11, and the reflecting part 112 gradually extends toward the shaped light outlet 111 in the direction away from the lamp bead 22. The inclined design purpose of the reflecting part 112 is to guide the light reflected in the light-distributing cavity 11 to the shaped light outlet 111.

[0036] The light emitted by the lamp bead 22 is more evenly reflected by the inner wall of the light averaging cavity 11 multiple times, so that the brightness of the light emitted from the contoured light outlet 111 is even, and it is less likely that the local brightness exceeds the standard or the local light is weak.

[0037] The shape of the shaped light outlet 111 can be appropriately designed based on actual needs. The shapes of the shaped light outlets 111 corresponding to each balancing cavity 11 can be different or the same. For example, in this embodiment, the shaped light outlet 111 of one balancing cavity 11 is shaped like the words "Safety Exit," the shaped light outlet 111 of another balancing cavity 11 is shaped like the words "EXIT," and the shaped light outlet 111 of yet another balancing cavity 11 is shaped like a human figure.

[0038] See also Figure 3 In some optional embodiments, multiple lamp beads 22 are arranged in each light-distributing cavity 11. When the light-distributing cavity 11 is large and the shaped light outlet 111 is large, multiple lamp beads 22 can be used to ensure that the brightness of the shaped light outlet 111 reaches the standard value.

[0039] In some optional embodiments, the plurality of light-equalizing cavities 11 are divided into at least one first light-equalizing cavity 1211 and at least one second light-equalizing cavity 1311, the distance between the shaped light outlet 111 of the first light-equalizing cavity 1211 and the corresponding lamp bead 22 located in the first light-equalizing cavity 1211 is greater than the preset distance, and the distance between the shaped light outlet 111 of the second light-equalizing cavity 1311 and the corresponding lamp bead 22 located in the second light-equalizing cavity 1311 is not greater than the preset distance; wherein, a light-shielding plate 131 is provided in the second light-equalizing cavity 1311, and the light-shielding plate 131 is arranged on the side of the lamp bead 22 facing the shaped light outlet 111. Since the distance between the shaped light outlet 111 of the second light-evening cavity 1311 and the corresponding lamp bead 22 located in the second light-evening cavity 1311 is no greater than the preset distance, it indicates that the lamp bead 22 is relatively close to the shaped light outlet 111 in the second light-evening cavity 1311. This may cause the light emitted by the lamp bead 22 to be directly emitted from the shaped light outlet 111. However, the light shielding plate 131 can block the light emitted by the lamp bead 22, thereby preventing the light emitted by the lamp bead 22 from being directly emitted from the shaped light outlet 111 of the second light-evening cavity 1311. This prevents the brightness of the shaped light outlet 111 of the second light-evening cavity 1311 near the lamp bead 22 from exceeding the standard value, thereby preventing the light from the shaped light outlet 111 of the second light-evening cavity 1311 near the lamp bead 22 from appearing brighter. The preset distance can be reasonably designed based on the actual brightness of the lamp bead 22.

[0040] See also Figure 3 and Figure 4 In some optional embodiments, the light shielding plate 131 is connected to the housing 10 via the connecting portion 132, thereby facilitating the formation and fixation of the light shielding plate 131. In this embodiment, the connecting portion 132 and the light shielding plate 131 are integrally formed with the housing 10, thereby facilitating production.

[0041] In some optional embodiments, a plurality of first positioning grooves 23 are provided on the circuit board 21, and a portion of the connecting portion 132 is located in the first positioning groove 23, so that the connecting portion 132 positions the circuit board 21, so that the position of the lamp beads 22 on the circuit board 21 relative to the sunshade 131 is relatively stable and not easy to shift.

[0042] In order to facilitate the formation of the light-uniforming cavity 11 , in some optional embodiments, a plurality of partition plates 14 are provided in the housing 10 , and the partition plates 14 divide the interior of the housing 10 into a plurality of light-uniforming cavities 11 .

[0043] In some optional embodiments, a limiting groove 15 is formed between the end of the partition plate 14 and the inner wall of the shell 10, and the circuit board 21 is arranged in the limiting groove 15, thereby limiting the position of the circuit board 21 and facilitating the installation of the circuit board 21.

[0044] In some optional embodiments, a plurality of second positioning grooves 24 are provided on the circuit board 21, and part of the partition plate 14 is located in the second positioning groove 24, so that the circuit board 21 is positioned by the partition plate 14, thereby making the position of the lamp beads 22 on the circuit board 21 relative to the light averaging cavity 11 more stable and less likely to shake.

[0045] In some optional embodiments, a plurality of clips 16 arranged around the circuit board 21 are provided in the housing 10. The clips 16 engage with the circuit board 21 to limit the position of the circuit board 21 relative to the limiting groove 15. The clips 16 facilitate the installation of the circuit board 21. In this embodiment, the circuit board 21 only needs to be placed in the limiting groove 15, and then the circuit board 21 is pressed so that the clips 16 lock the circuit board 21, so that the circuit board 21 can be quickly installed. The positions of the limiting groove 15 and the clips 16, as well as the position of the circuit board 21 on the lamp bead 22, are all fixed. Therefore, through advance design and production, the lamp bead 22 can be accurately arranged at the appropriate position in the light-distributing cavity 11 after the circuit board 21 is installed.

[0046] See also Figure 5 The specific structure of the housing 10 can be appropriately designed based on actual needs. In some optional embodiments, the housing 10 includes a front plate 17 and a rear shell 18 connected to each other, with multiple light cavities 11 formed between the front plate 17 and the rear shell 18. The reflective portion 112 and the circuit board 21 are disposed on the rear shell 18, and the contoured light outlet 111 is disposed on the front plate 17. After the circuit board 21 is installed, the front plate 17 and the rear shell 18 can be directly bonded together using colloid or welded. Of course, the front plate 17 and the rear shell 18 can also be detachably connected using a threaded structure or a snap-fit ​​structure.

[0047] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fire emergency light, characterized in that: include: A housing having a plurality of light balancing cavities disposed therein, wherein a shaped light outlet communicating with the outside of the housing is disposed on the front side of the light balancing cavity, and a reflective portion is disposed on the rear side of the light balancing cavity; A light source assembly includes a circuit board and a plurality of lamp beads arranged on the circuit board, wherein the circuit board extends into each of the light-distributing cavities, and each of the light-distributing cavities has at least one lamp bead arranged therein; The lamp bead is located between the reflective portion and the shaped light outlet in the direction from the front side to the rear side of the light-evening cavity, and the reflective portion gradually extends obliquely toward the shaped light outlet in the direction away from the lamp bead.

2. A fire emergency light according to claim 1, characterized in that: A plurality of lamp beads are arranged in each of the light averaging cavities.

3. The fire emergency light according to claim 1, characterized in that: The multiple light averaging cavities are divided into at least one first light averaging cavity and at least one second light averaging cavity, the distance between the shaped light outlet of the first light averaging cavity and the corresponding lamp bead located in the first light averaging cavity is greater than a preset distance, and the distance between the shaped light outlet of the second light averaging cavity and the corresponding lamp bead located in the second light averaging cavity is not greater than the preset distance; Wherein, a light shielding plate is provided in the second light-averaging cavity, and the light shielding plate is arranged on a side of the lamp bead facing the contoured light outlet.

4. A fire emergency light according to claim 3, characterized in that: The shading plate is connected to the housing via a connecting portion.

5. The fire emergency light according to claim 4, characterized in that: A plurality of first positioning grooves are provided on the circuit board, and parts of the connecting portion are located in the first positioning grooves.

6. A fire emergency light according to any one of claims 1 to 5, characterized in that: A plurality of partition plates are arranged in the shell, and the partition plates divide the interior of the shell into a plurality of the light-averaging cavities.

7. The fire emergency light according to claim 6, characterized in that: A limiting groove is formed between the end of the partition plate and the inner wall of the shell, and the circuit board is arranged in the limiting groove.

8. The fire emergency light according to claim 7, characterized in that: A plurality of second positioning grooves are provided on the circuit board, and parts of the partition plate are located in the second positioning grooves.

9. The fire emergency light according to claim 7, characterized in that: A plurality of latches arranged around the circuit board are provided in the housing, and the latches are engaged with the circuit board to limit the position of the circuit board relative to the limiting groove.

10. A fire emergency light according to any one of claims 1 to 5, characterized in that: The housing includes a front plate and a rear shell connected to each other, a plurality of light averaging cavities are formed between the front plate and the rear shell, the reflective portion and the circuit board are arranged on the rear shell, and the contoured light outlet is arranged on the front plate.

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