CN112837479B - Alarm horn - Google Patents

Alarm horn Download PDF

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Publication number
CN112837479B
CN112837479B CN201911165446.9A CN201911165446A CN112837479B CN 112837479 B CN112837479 B CN 112837479B CN 201911165446 A CN201911165446 A CN 201911165446A CN 112837479 B CN112837479 B CN 112837479B
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China
Prior art keywords
light
emitting
groove
ring
light source
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CN201911165446.9A
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CN112837479A (en
Inventor
潘梦旗
诸葛欣
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Hangzhou Hikvision Digital Technology Co Ltd
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Hangzhou Hikvision Digital Technology Co Ltd
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Priority to CN201911165446.9A priority Critical patent/CN112837479B/en
Publication of CN112837479A publication Critical patent/CN112837479A/en
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    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B7/00Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
    • G08B7/06Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00Reflectors for light sources

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)

Abstract

The application discloses an alarm number, which comprises a shell, a light-emitting panel and a light-emitting component; the shell is provided with an outer side surface and an inner side surface, the outer side surface is provided with a light-emitting groove formed by sinking the outer side to the inner side, the light-emitting groove is provided with a notch, a groove bottom opposite to the notch and groove walls adjacent to the notch, and a light-emitting opening communicated with the inner side is formed in one groove wall; the light emitting panel is provided with a light incident surface, a reflecting surface and a light emitting surface, the light incident surface is adjacent to the light emitting surface, and the reflecting surface is opposite to the light incident surface and the light emitting surface and is used for reflecting incident light entering from the light incident surface to the light emitting surface; the light-emitting component comprises a light source plate and a side light-emitting source, wherein the side light-emitting source is arranged on the light source plate and emits light rays in a direction parallel to the light source plate; the light emitting assembly is arranged inside, the side light emitting source is aligned to the light outlet, the light emitting panel is arranged in the light outlet groove, the light inlet surface is opposite to the light outlet, and the light outlet surface is exposed out of the groove opening. The police dispatch sign provided by the embodiment can effectively improve the light emitting effect.

Description

Alarm horn
Technical Field
The application relates to the technical field of alarming, in particular to an alarm number.
Background
Along with the increasing safety consciousness of people, monitoring and alarming equipment is more and more emphasized, and the development is greatly achieved. In the related art, a warning sign is a device capable of warning a relevant person by sound and light when an emergency occurs.
Because of the limitation of sound transmission, the sensitivity of people to sound alarm can be reduced under the condition of long distance or large environmental noise, and the light can not be influenced by the sound alarm, so that the auxiliary alarm can be carried out through the light at the moment.
Police officers in the related art usually adopt a direct type light source, and because the internal space of the police officer is narrow and small, the light source is close to the light panel, so that light can form an obvious light spot on the light panel and cannot be uniformly dispersed to the light-emitting surface of the light panel, the light-emitting effect of the light-emitting surface is uneven, the light can not be obviously observed at some positions where the local part of the light-emitting surface can be observed, and the warning situation is delayed.
Disclosure of Invention
The embodiment of the application provides an alarm signal to solve the problems.
The embodiment of the application adopts the following technical scheme:
the embodiment of the application provides an alarm, which comprises a shell, a light-emitting panel and a light-emitting component;
the shell is provided with an outer side surface and an inner side surface, the outer side surface faces to the outer side, the inner side surface faces to the inner side, a light-emitting groove formed by sinking the outer side to the inner side is formed in the outer side surface, the light-emitting groove is provided with a groove opening, a groove bottom opposite to the groove opening and a groove wall adjacent to the groove opening, and a light-emitting opening communicated with the inner side is formed in one groove wall;
the light emitting panel is provided with a light incident surface, a reflecting surface and a light emitting surface, the light incident surface is adjacent to the light emitting surface, and the reflecting surface is opposite to the light incident surface and the light emitting surface and is used for reflecting incident light entering from the light incident surface to the light emitting surface;
the light-emitting component comprises a light source board and a side light-emitting source, wherein the side light-emitting source is arranged on the light source board and emits light rays in a direction parallel to the light source board;
the light emitting assembly is arranged on the inner side, the side light emitting source is aligned to the light outlet, the light emitting panel is arranged in the light outlet groove, the light inlet face is opposite to the light outlet, and the light outlet face is exposed out of the groove opening.
Optionally, in the police stand, the light-emitting groove is of an annular structure, the light-emitting ports are circumferentially arranged on a wall of the light-emitting groove facing the ring center, the light-emitting panel extends annularly, and the side light-emitting sources are annularly arranged on the light source plate and emit light towards a side far away from the ring center.
Optionally, in the police cruiser, the light source plate is of an annular structure.
Optionally, in the police stand, the inner side surface is further provided with a circle of anti-channeling optical fiber, the anti-channeling optical fiber is surrounded by the groove wall facing the ring center, and the light source plate, the anti-channeling optical fiber and the groove wall facing the ring center jointly enclose an enclosed space with only a light outlet as an opening.
Optionally, in the police stand, the anti-channeling plain rib is concentrically disposed with the groove wall.
Optionally, in the above police stand, the police stand further includes a sound generating device, the housing is provided with a sound outlet array penetrating through the inner side surface and the outer side surface, the sound outlet array is surrounded by the light source board, and the sound generating device is penetrated through the middle of the light source board and aligned with the sound outlet array.
Optionally, in the police stand, the inner side surface is further provided with a sound gathering ring, the sound gathering ring is arranged around the sound outlet hole array, and the sound generating device extends into the sound gathering ring.
Optionally, in the police stand, the light emitted by each of the side light-emitting sources covers a part of the length of one side edge of the light source board away from the ring core, and the light emitted by all the side light-emitting sources completely covers one side edge of the light source board away from the ring core.
Optionally, in the police stand, the inner side surface is further provided with a positioning column, the light source plate is provided with a positioning notch, and the light source plate and the housing are positioned by matching the positioning notch with the positioning column.
Optionally, in the police horn described above, a plurality of reinforcing ribs are circumferentially disposed on the inner side surface, the reinforcing ribs connect one side of the groove wall facing the ring center, which is close to the notch, and one side of the groove wall facing the ring center, which is close to the groove bottom, and one light outlet is formed between two adjacent reinforcing ribs.
Optionally, in the police horn, the reflection surface is an inclined ring surface that is inclined with respect to the light incident surface.
Optionally, in the police horn, the light emitting panel further includes a heat-melting pillar, and the heat-melting pillar is disposed on the reflection surface and protrudes toward a side away from the light emitting surface;
the shape of the groove bottom is matched with that of the reflecting surface, a hot melting hole is formed in the groove bottom, and the hot melting column penetrates through the hot melting hole and is in hot melting connection with the hot melting hole.
Optionally, in the police stand, a circle of first convex edge is disposed on a side, close to the notch, of the groove wall facing the ring center, a circle of second convex edge is disposed on the light incident surface, and when the light emitting panel is disposed in the light emitting groove, the second convex edge and the first convex edge are stacked.
Optionally, the police tag further comprises a main board, and the light emitting assembly is mechanically and electrically connected to the main board.
Optionally, in the police stand, the main board is provided with a plurality of battery interfaces around the light emitting component, the inner side surface is provided with a reinforcing member corresponding to the battery interfaces, and when the main board is assembled in the housing, the reinforcing member can fix the battery interfaces.
Optionally, the police tag further comprises an antenna board, and the antenna board is mechanically and electrically connected to the main board.
Optionally, in the police horn described above, the housing includes a front shell and a rear shell, the front shell and the rear shell together enclose an assembly cavity, the inner side surface faces the assembly cavity, and the light exit groove is disposed on the front shell.
The embodiment of the application adopts at least one technical scheme which can achieve the following beneficial effects:
the police dispatch newspaper disclosed in the embodiment of the application has prolonged propagation path and the dispersion effect of light through side light emitting source and plane of reflection, can promote the light degree of consistency on play plain noodles by a wide margin, effectively improves the light-emitting effect, reduces the risk that the alert feelings are delayed.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is an exploded view of an alarm tag disclosed in an embodiment of the present application;
FIG. 2 is an outer structural view of a front housing disclosed in an embodiment of the present application;
FIG. 3 is an inside structural view of the housing disclosed in an embodiment of the present application;
fig. 4 is a front surface structure view of a light emitting panel disclosed in an embodiment of the present application;
fig. 5 is a rear surface structure view of a light emitting panel disclosed in an embodiment of the present application;
FIG. 6 is a perspective view of a light emitting assembly according to an embodiment of the present disclosure;
fig. 7 is a back structural view of the main board and the sound generating device disclosed in the embodiment of the present application;
fig. 8 is a detailed structural view of an antenna board disclosed in an embodiment of the present application;
fig. 9 is an assembly structure view of a light emitting module, a sound generating device, a main board and an antenna board disclosed in an embodiment of the present application.
Description of reference numerals:
1-front shell, 10-outer side surface, 11-inner side surface, 12-light emitting groove, 120-notch, 121-groove bottom, 122-groove wall, 123-light emitting port, 124-hot melting hole, 125-first convex edge, 13-sound emitting hole array, 14-sound gathering ring, 15-anti-channeling light rib, 16-positioning column, 17-reinforcing rib, 18-reinforcing piece, 2-rear shell, 3-light emitting panel, 30-light incident surface, 31-reflecting surface, 32-light emitting surface, 33-hot melting column, 34-second convex edge, 4-light emitting component, 40-light source plate, 400-positioning notch, 41-side light emitting source, 42-row needle, 5-sound emitting device, 6-main plate, 60-row mother plate, 61-welding disc, 62-battery interface, 7-antenna board, 70-welding pin.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only a few embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The technical solutions provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings.
The embodiment of the application discloses an alarm horn, as shown in fig. 1 to 9, the basic structure of the alarm horn comprises a shell, a light-emitting panel 3 and a light-emitting component 4, and in addition, the alarm horn can also comprise a sound-generating device 5, a main board 6, an antenna board 7 and other structures. The housing is usually composed of several detachable parts, for example, the housing in this embodiment is composed of a front case 1 and a rear case 2, the front case 1 and the rear case 2 together enclose a mounting cavity (not numbered in the figure), and components except the light-emitting panel 3 can be disposed in the mounting cavity for protection.
The housing has an outer surface 10 and an inner surface 11, the outer surface 10 faces outward, the inner surface 11 faces inward of the mounting cavity, and the housing is generally thin-walled, and the direction from the outer surface 10 to the inner surface 11 is the thickness direction. As shown in fig. 2, the light-emitting groove 12 is formed by recessing the outer side of the outer surface 10 inward, the light-emitting groove 12 includes a notch 120, a groove bottom 121 facing the notch 120, and groove walls 122 adjacent to the notch 120, at least two groove walls 122 adjacent to the notch 120 are usually provided in the light-emitting groove 12, and the groove wall 122 on one side of the light-emitting groove is provided with a light-emitting port 123 communicating with the inner side (i.e., the mounting cavity).
As shown in fig. 4 and 5, the light emitting panel 3 includes a light incident surface 30, a light reflecting surface 31, and a light emitting surface 32, wherein the light incident surface 30 is adjacent to the light emitting surface 32, and an included angle of a large acute angle or an included angle close to a vertical angle exists therebetween. The reflection surface 31 is opposite to the light incident surface 30 and the light emitting surface 32, and can reflect the incident light entering from the light incident surface 30 to the light emitting surface 32, i.e. the propagation path of the light inside the light emitting panel 3 is extended.
Meanwhile, as shown in fig. 6, the light emitting assembly 4 in the present embodiment includes a light source board 40 and a side light emitting source 41, wherein the side light emitting source 41 is disposed on the light source board 40 and emits light in a direction parallel to the light source board 40. When the light emitting assembly 4 is assembled, the side light sources 41 are aligned with the light outlet 123, the light emitting panel 3 is disposed in the light outlet groove 12, the light incident surface 30 is opposite to the light outlet 123, and the light emitting surface 32 is exposed from the notch 120. The light emitted by the side light source 41 and parallel to the light source plate 40 can enter the light incident surface 30 through the light exit port 123, and then reach the light exit surface 32 through the reflection of the reflection surface 31, so that the propagation path and the dispersion effect of the light are prolonged under the condition that the distance between the light source plate 40 and the front shell 1 is not increased basically, the light uniformity of the light exit surface 32 is greatly improved, the light exit effect is effectively improved, and the risk of warning delay is reduced.
In the direct-type design manner in the related art, in order to improve the light-equalizing effect, a large proportion (more than 0.4%) of the light-equalizing agent is usually added into the material for manufacturing the light-emitting panel 3, and even then, a good light-equalizing effect cannot be obtained. And this embodiment especially increases the propagation path of light inside the light-emitting panel 3 because of lengthening the propagation path of light, so can show the dispersion effect that promotes light. On the premise of achieving a good light-homogenizing effect, the light-homogenizing agent added into the manufacturing material of the light-emitting panel 3 can be controlled to be about 0.2% or even lower, and the cost is greatly saved.
In this embodiment, the light exit grooves 12 may have any shape, and in order to obtain a significant light exit effect, it is preferable to use the light exit grooves 12 having a ring-shaped structure to match the light emitting panel 3 extending in a ring shape, so that the space occupied by the light emitting panel 3 is limited, but a wider range of light emitting areas can be presented. In order to match the light emitting panel 3 in a ring shape, the light outlets 123 are circumferentially arranged on the groove wall 122 of the light emitting groove 12 facing the ring center, and the side light emitting sources 41 are also annularly arranged on the light source plate 40 and emit light toward the side away from the ring center. The side light-emitting sources 41 may thus emit light in a ring shape, and the emitted light is incident on various regions of the light-emitting panel 3 in a ring shape from the light-emitting ports 123 arranged in a ring shape. The reflecting surface 31 may be a ring of inclined ring surface inclined with respect to the light incident surface 30, and the specific inclination angle may be determined according to the actual reflection effect. For example, when the light incident surface 30 and the light emitting surface 32 are perpendicular to each other, the inclined ring surface may form an included angle of 45 ° with the light incident surface 30, so as to reflect the light rays incident on the light incident surface 30 at 90 ° toward the light emitting surface 32.
In order to fix the light-emitting panel 3 to the front shell 1, as shown in fig. 4 and 5, heat-fusible pillars 33 may be provided on the light-emitting panel 3, and the heat-fusible pillars 33 may be provided on the reflecting surface 31 and protrude toward a side away from the light-emitting surface 32. At the same time, as shown in fig. 2 and 3, the groove base 121 is adapted to the shape of the reflection surface 31, and a thermohole 124 is provided in the groove base 121. The heat-fusing hole 124 penetrates through the groove bottom 121, and the heat-fusing hole 124 may protrude inward to form a heat-fusing platform, and when the light-emitting panel 3 is assembled with the front case 1, the heat-fusing pillar 33 may penetrate through the heat-fusing hole 124 and be thermally fused with the heat-fusing hole 124, thereby fixing the light-emitting panel 3 with the front case 1. It should be noted that the above structure is not the only way to fix the light-emitting panel 3 and the front case 1, but is merely an example or a preferred solution, and the present embodiment may also adopt other ways to fix the light-emitting panel 3 and the front case 1.
In this embodiment, the light emitted by each side light source 41 can cover a part of the length of the edge of one side of the light source plate 40 away from the ring center, and the length covered by each side light source 41 can be overlapped by adjusting the arrangement and position of the side light sources 41, so that the light emitted by all the side light sources 41 completely covers one side edge of the light source plate 40 away from the ring center, and the light emitting assemblies 4 can obtain substantially the same light emitting effect at each position in the circumferential direction, so as to improve the final light equalizing effect. For example, as shown in fig. 6, 12 side light sources 41 are arranged on the light source board 40, and the light emitted by each side light source can cover 1/12 with a length of approximately the circumference of the edge of the side of the light source board 40 away from the ring center, so that the effect of completely covering the edge of the side of the light source board 40 away from the ring center can be substantially achieved by reasonably arranging the 12 side light sources 41, and a more uniform light emitting effect can be obtained. In this configuration, the light source board 40 may also be formed in a ring shape in order to save space, thereby making the space in the middle free for other components.
For example, as shown in fig. 2 and 3, the front case 1 may be provided with a sound output hole array 13 that penetrates the inner surface 11 and the outer surface 10. When the light source board 40 is completely assembled with the front case 1, the sound outlet hole array 13 can be just surrounded by the light source board 40, and the sound generating device 5 can pass through the middle of the light source board 40 and be aligned with the sound outlet hole array 13. The sound generating device 5 may generate an alarm sound, such as a siren, buzzer or other sounds, and the sound generating device 5 may be a horn, a buzzer or other various devices according to the generated sounds. In order to make the sound emitted from the sound outlet hole array 13 more concentrated, the sound gathering ring 14 may be disposed on the inner side surface 11, the sound gathering ring 14 surrounds the sound outlet hole array 13, the sound generating device 5 extends into the sound gathering ring 14 during assembly, and the sound emitted from the sound generating device 5 may be limited in the area near the sound outlet hole array 13 by the sound gathering ring 14, so as to gather the sound, and make the sound transmitted to the outside more through the sound outlet hole array 13.
Because light source plate 40 adopts the loop configuration, consequently in order to prevent that light from scurrying to the middle part of loop configuration and being wasted, this embodiment can set up round on medial surface 11 and prevent scurrying plain noodles 15, prevent scurrying plain noodles 15 and surrounded by the cell wall 122 towards the ring center, and prevent scurrying spacing and shape between plain noodles 15 and this cell wall 122 and will match with light source plate 40, make light source plate 40 can enclose into only light-emitting opening 123 as open-ended enclosure space with preventing scurrying plain noodles 15 and towards the cell wall 122 of ring center jointly when the assembly finishes. In the closed space, light can only leave from the light outlet 123, so that the light efficiency can be greatly improved. According to the demand of the internal layout of police dispatch newspaper, prevent scurrying light muscle 15 and cell wall 122 and can set up with one heart, also can eccentric settings, and under the normal conditions, concentric settings are convenient for overall arrangement and assembly more, and light source board 40 also need of course to set up to corresponding structure.
In addition, since there is usually a certain size difference between the light-emitting panel 3 and the light-exit groove 12, a certain assembly gap may be formed between the light-emitting panel 3 and the light-exit groove 12. Some of the light may enter the assembly gap and leave the notch 120 through the assembly gap, forming local stray light. To prevent this, the present embodiment may provide a circle of the first ledge 125 (see fig. 2) on the side of the groove wall 122 facing the ring center adjacent to the notch 120, and a circle of the second ledge 34 (see fig. 4 and 5) on the light incident surface 30. When the light-emitting panel 3 is disposed in the light exit groove 12, the second convex edge 34 may be stacked with the first convex edge 125. The first protruding edge 125 and the second protruding edge 34 can close the assembly gap between the light source panel 3 and the light exit groove 12, so as to avoid the occurrence of light channeling.
In order to facilitate assembling and positioning the relative position between the light emitting assembly 4 and the front housing 1, a positioning column 16 may be further disposed on the inner side surface 11, a positioning notch 400 may be disposed on the light source plate 40, and the light source plate 40 and the front housing 1 are positioned by the positioning notch 400 and the positioning column 16. Positioning notch 400 may be disposed on one side of light source board 40 facing the center of the ring, and positioning column 16 may be disposed integrally with anti-channeling rib 15.
In this embodiment, if the groove wall 122 of the light-emitting groove 12 facing the ring center is provided with an annular light-emitting opening, the area surrounded by the light-emitting groove 12 is completely separated from other areas on the front housing 1, and in order to avoid this, a connecting structure needs to be provided between the two parts. As shown in fig. 3, in the present embodiment, a plurality of ribs 17 are circumferentially disposed on the inner side surface 11, each rib 17 connects one side of the groove wall 122 facing the ring center, which is adjacent to the notch 120, and one side of the groove wall 122 facing the ring center, which is adjacent to the groove bottom 121, and a light outlet 123 is formed between two adjacent ribs 17, so that a plurality of light outlets 123 can be separately arranged along the circumferential direction, and each light outlet 123 can respectively correspond to one side light emitting source 41.
Referring to fig. 6 to 9, in the present embodiment, the main board 6 may be used as a centralized power supply and control module for the police station, and may also be used as a fixing structure for some components. For example, the light emitting device 4 in this embodiment can be mechanically and electrically connected to the main board 6. For example, the row pin 42 may be disposed on a side of the light source board 40 of the light emitting assembly 4 away from the side light source 41, and the row nut 60 is disposed on the main board 6 to complete the mechanical connection and the electrical connection between the light emitting assembly 4 and the main board 6, in this embodiment, other structures may be adopted to achieve the mechanical connection and the electrical connection between the light emitting assembly 4 and the main board 6, and the mechanical connection and the electrical connection structure may be integrated into a whole, or different connection structures may be respectively adopted, for example, a wire may be adopted to perform the electrical connection, and a clamping structure and the like are adopted to perform the mechanical connection.
The police horn can be controlled in a wired mode, but the mode needs to be wired and is inconvenient to use in some cases, so that the antenna plate 7 can be arranged in the police horn to receive external wireless instructions. The antenna board 7 can be mechanically and electrically connected to the main board 6. As shown in fig. 8, the soldering pins 70 may be disposed on the antenna board 7, and the soldering pads 61 are disposed on the main board 6 to be soldered to the soldering pins 70, so that the antenna board 7 and the main board 6 can be mechanically and electrically connected together after the soldering is completed. Similarly, the mechanical connection and the electrical connection structure between the antenna board 7 and the main board 6 may be integrated, or different connection structures may be adopted, for example, a wire may be used for electrical connection, and a clamping structure or the like may be used for mechanical connection.
In general, the police horn can be powered by an external power supply, but in the case that the external power supply is difficult to be connected or disconnected, a battery is required to be used as the power supply for maintaining a normal working state. Therefore, in the present embodiment, a plurality of battery interfaces 62 are disposed on the main board 6 around the light emitting assembly 4, each battery interface 62 has a power connection structure for connecting the positive electrode and the negative electrode of the battery, and the power connection structures have limited structural strength, and in order to prevent the power connection structures of the battery interfaces 62 from being extruded and deformed by the battery, the reinforcing member 18 is disposed on the inner side surface 11 corresponding to the battery interfaces 62, and when the main board 6 is assembled in the housing (front case 1), the reinforcing member 18 can fix the battery interfaces 62, thereby structurally reinforcing the battery interfaces 62 and preventing the battery interfaces from being extruded and deformed.
In conclusion, the alarm provided by the embodiment can effectively improve the light emitting effect and reduce the risk of delaying the alarm situation.
In the embodiments of the present application, the difference between the embodiments is described in detail, and different optimization features between the embodiments can be combined to form a better embodiment as long as the differences are not contradictory, and further description is omitted here in view of brevity of the text.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims (17)

1. The police horn is characterized by comprising a shell, a light-emitting panel and a light-emitting component;
the shell is provided with an outer side surface and an inner side surface, the outer side surface faces to the outer side, the inner side surface faces to the inner side, a light-emitting groove formed by sinking the outer side to the inner side is formed in the outer side surface, the light-emitting groove is provided with a groove opening, a groove bottom opposite to the groove opening and a groove wall adjacent to the groove opening, and a light-emitting opening communicated with the inner side is formed in one groove wall;
the light emitting panel is provided with a light incident surface, a reflecting surface and a light emitting surface, the light incident surface is adjacent to the light emitting surface, the reflecting surface is opposite to the light incident surface and the light emitting surface and is used for reflecting incident light entering from the light incident surface to the light emitting surface, and the reflecting surface is a circle of inclined ring surface which is obliquely arranged relative to the light incident surface;
the light-emitting component comprises a light source board and a side light-emitting source, wherein the side light-emitting source is arranged on the light source board and emits light rays in a direction parallel to the light source board;
the light emitting assembly is arranged on the inner side, the side light emitting source is aligned to the light outlet, the light emitting panel is arranged in the light outlet groove, the light inlet face is opposite to the light outlet, and the light outlet face is exposed out of the groove opening.
2. An alarm sign according to claim 1, wherein the light-emitting slot is of an annular configuration, the light-emitting ports are circumferentially arranged on a wall of the light-emitting slot facing the ring center, the light-emitting panel extends annularly, and the side light-emitting sources are annularly arranged on the light source panel and emit light toward a side away from the ring center.
3. An alarm sign according to claim 2, wherein the light source board is of annular configuration.
4. A police horn according to claim 3 wherein the inner side face is further provided with a ring of anti-channeling optical ribs surrounded by the groove wall facing the ring center, and the light source plate, the anti-channeling optical ribs and the groove wall facing the ring center together enclose a closed space with only the light outlet as an opening.
5. An alarm tag according to claim 4, characterised in that the tamper-proof bead is arranged concentrically with the wall of the slot.
6. The police tag of any one of claims 3 to 5, further comprising a sound generating device, wherein the housing is provided with a sound outlet hole array penetrating through the inner side surface and the outer side surface, the sound outlet hole array is surrounded by the light source board, and the sound generating device penetrates through the middle of the light source board and is aligned with the sound outlet hole array.
7. An alarm sign according to claim 6, wherein said inner side surface is further provided with a sound gathering ring, said sound gathering ring being disposed around said array of sound outlet holes, said sound emitting device extending into said sound gathering ring.
8. A warning sign according to any one of claims 3 to 5 wherein each of said side light sources emits light over part of the length of the side edge of the light source board remote from the centre of the ring, all of said side light sources emitting light which completely covers the side edge of the light source board remote from the centre of the ring.
9. An alarm sign according to any one of claims 2 to 5, wherein the inner side surface is further provided with a positioning post, the light source board is provided with a positioning notch, and the light source board and the housing are positioned by matching the positioning notch and the positioning post.
10. An alarm tag according to any one of claims 2 to 5, wherein a plurality of ribs are circumferentially provided on said inner side surface, said ribs connecting a side of said groove wall facing the ring core adjacent to said notch and a side of said groove wall facing the ring core adjacent to said groove bottom, and said light outlet is formed between two adjacent ribs.
11. An alarm sign according to any one of claims 2 to 5, wherein the reflecting surface is an inclined torus disposed obliquely to the light-incident surface.
12. An alarm tag according to claim 11, wherein the light-emitting panel is further provided with heat-fusible pillars which are provided on the reflecting surface and project toward a side facing away from the light-emitting surface;
the shape of the groove bottom is matched with that of the reflecting surface, a hot melting hole is formed in the groove bottom, and the hot melting column penetrates through the hot melting hole and is in hot melting connection with the hot melting hole.
13. An alarm tag according to any one of claims 2 to 5, wherein a first ledge is provided on the side of the slot wall facing the centre of the ring adjacent the slot, and a second ledge is provided on the light-entering face, the second ledge being arranged in a stack with the first ledge when the light-emitting panel is disposed in the light-exiting slot.
14. An alarm sign according to any one of claims 1 to 5, further comprising a main board, said light emitting element being mechanically and electrically connected to said main board.
15. An alarm sign according to claim 14, wherein a plurality of battery ports are provided on the main board around the light emitting assembly, and a reinforcement member is provided on the inner side face corresponding to the battery ports, the reinforcement member being capable of securing the battery ports when the main board is assembled in the housing.
16. An alarm tag according to claim 14, further comprising an antenna board, said antenna board being mechanically and electrically connected to said main board.
17. An alarm sign according to any one of claims 1-5, wherein the outer housing comprises a front shell and a rear shell, the front shell and the rear shell together enclosing a mounting cavity, the inner side facing the mounting cavity, the light exit slot being provided on the front shell.
CN201911165446.9A 2019-11-25 2019-11-25 Alarm horn Active CN112837479B (en)

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JP5059988B1 (en) * 2011-06-24 2012-10-31 パナソニック株式会社 Light source for illumination
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