CN2932052Y - emergency direction indicators - Google Patents

Abstract

An emergency direction indicator lamp comprises a shell and a cover body, wherein the front surface of the cover body is provided with a hollow part; the light guide plate is arranged in the shell, the surface of the light guide plate is provided with a mark of a preset character pattern, and the mark is displayed by the hollow part of the cover body; a strip-shaped light-emitting diode, which is composed of a plurality of light-emitting diodes arranged on the long circuit board, is arranged in the shell and is positioned at the side edge of the light guide plate, so that the light emitted by the light-emitting diode enters the light diffusion from the side edge of the light guide plate; the power supply control circuit board is arranged in the shell and used for controlling power supply required by the strip-shaped light-emitting diodes; the electric power storage unit is connected with the power supply control circuit board and is used for storing electric energy at ordinary times, and when an external power supply is interrupted, the electric power required by the strip-shaped light-emitting diodes is automatically supplied, so that the marks of the light guide plate are bright. The utility model discloses the equipment of being convenient for does not account for the space, makes the whole thin shape of lamp house and display surface clear bright, power saving and long service life, need not often change the light emitting source.

Description

emergency direction indicators

technical field

The utility model relates to a light-emitting sign, in particular to a light-emitting sign that is easy to assemble, does not take up space, has the effect of making the overall light box thinner and has a clear and bright display surface, saves power and has a long service life, and does not need to frequently replace the light source emergency direction indicators.

Background technique

Existing direction indicator lamps, such as: exit indicator lights, refuge direction indicator lights and dressing room, the direction indicator lights of each department; Its structure generally as shown in Figure 1, comprises a light box 11, is located at the fluorescent lamp in the light box 11 The tube 12, and the power supply device needed to supply the fluorescent tube 12, such as electronic components 13 such as transformers, starters and ballasts. In addition, a light-transmitting display panel 14 and a positioning frame 15 are arranged on the front.

Aforesaid such existing direction indicators, its main light source is the fluorescent tube 12, but because the life-span of the fluorescent tube 12 is limited, so it is easy to break down after using for a period of time, and often flickers first and then dark, which is very flickering. It is uncomfortable and has to be replaced frequently, which is really inconvenient. In addition, the use of a fluorescent tube 12 must be equipped with a starter, and the starter is also an electronic component that is prone to failure. Therefore, the existing direction indicator lights need to be repaired frequently, which causes troubles for the maintenance department. improve.

In addition, the size of the fluorescent tube has a certain length. For example, the length of 40W and 20W is twice as long. If the size of the light box 11 is between these two sizes, there will be troubles in production.

Furthermore, because the fluorescent tubes 12 and the electronic components 13 etc. take up a lot of space, the above-mentioned direction indicators are large in size, which is not conducive to installation, and lacks aesthetic feeling, which often becomes a hindrance to interior design.

In view of this, the author has long been engaged in the development of LEDs as the light source of emergency direction indicators to solve the problems of the prior art.

Utility model content

The main technical problem to be solved by the utility model is to overcome the above-mentioned defects in the prior art, and provide a new type of emergency direction indicator light, which uses LED as the light source, and can cut the required length according to the size of the light box shell. The strip-shaped light-emitting diode has the convenience of modularization, and the strip-shaped light-emitting diode is very light and thin, easy to assemble, does not take up space, has the effect of making the light box thinner and the display surface is clear and bright, and saves power and service life Long, do not need to change the light source frequently.

The technical scheme that the utility model solves its technical problem adopts is:

An emergency direction indicator light is characterized in that it includes: a shell, which is composed of a bottom shell and a cover, and the front of the cover has a hollow part; a light guide plate is arranged in the shell, and the surface is provided with The mark of the predetermined text and pattern is displayed by the hollow part of the cover; the strip-shaped light-emitting diode is composed of a plurality of light-emitting diodes arranged on a long circuit board, which is arranged in the housing and located in the guide The side of the light plate, so that the light emitted by the light-emitting diodes enters and diffuses from the side of the light guide plate; a power control circuit board is arranged in the housing to control the power supply required for the aforementioned strip-shaped light-emitting diodes; The electric unit is connected with the power control circuit board and is used to store electric energy at ordinary times. When the external power supply is interrupted, it automatically supplies the required power to the strip-shaped light-emitting diodes to make the signs on the light guide plate bright.

In the aforementioned emergency direction indicator light, wherein the light guide plate is made of an acrylic resin plate.

In the aforementioned emergency direction indicator light, the light-emitting diodes are glued on the heat sink of the elongated circuit board by direct surface-adhesive method of crystal grains.

In the aforementioned emergency direction indicator light, wherein the cooling seat is made of ceramics, and its bottom is electrically connected to the elongated circuit board.

In the aforementioned emergency direction indicator light, the electric storage unit is composed of several secondary batteries.

The beneficial effect of the utility model is that it uses LEDs as the light source, and strip-shaped light-emitting diodes of required length can be cut according to the size of the light box shell, which has the convenience of modularization, and the strip-shaped light-emitting diodes are very light and thin, which is convenient Assembled, does not occupy space, has the effect of making the overall light box thinner and clear and bright display surface, and saves power and has a long service life, so it is not necessary to frequently replace the light source.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is an exploded three-dimensional schematic diagram of an existing emergency direction indicator light

Fig. 2 is an exploded perspective view of the utility model

Fig. 3 is a combined perspective view of the utility model

Fig. 4 is the enlarged schematic view of the strip light-emitting diode of the present invention

Fig. 5 is the front view of the utility model

Fig. 6 is a sectional view of section 6-6 shown in Fig. 5

Explanation of symbols in the figure:

20 housing 53 wires

21 bottom case 60 power storage unit

22 cover body 23, 24 positioning piece

25 accommodation space 26 positioning column

30 Light guide plate 31 Marking

32 screws 40 strip light-emitting diodes

41 long circuit board 42 light-emitting diodes

421 grain 422 heat sink

50 power control circuit board 51AC power supply unit

52DC power supply unit

Detailed ways

First of all, please refer to Fig. 2 to Fig. 6, the preferred embodiment of the emergency direction indicator light of the present utility model includes:

A housing 20 is composed of a bottom shell 21 and a cover 22 , and the cover 22 has a hollow portion 221 on the front surface, and the cover 22 covers the bottom shell 21 when assembled.

A light guide plate 30 is arranged in the casing 20, and its surface is provided with a mark of a predetermined text and pattern. In this embodiment, a plurality of screws 32 are used to lock on the bottom case 21, and the upper and lower sides of the bottom case 21 The lower ends are respectively provided with L-shaped positioning pieces 23, 24 for the light guide plate 30 to lean against, so that the light guide plate 30 is forwardly leaned against the cover body 22 as shown in FIG. 21 forms an accommodating space 25 . In addition, the light guide plate 30 is preferably made of an acrylic resin plate, but it is not limited thereto, and equivalent materials can also be used.

The strip light emitting diode 40 is composed of a plurality of arrays of light emitting diodes 42 arranged on the elongated circuit board 41. It is arranged in the casing 20 and is located on the side of the light guide plate 30, so that the light emitted by the light emitting diodes 42 The light enters and diffuses from the side of the light guide plate 30 . In this embodiment, the strip-shaped LEDs 40 are disposed on the bottom edge of the light guide plate 30 , but it is not limited thereto, and can also be placed on the upper end. As shown in Figure 4, the light-emitting diode 42 of the present utility model adopts the method of re-exposing the die without packaging, that is, the LED die 421 is directly bonded to the heat sink 422 by surface mount (SMT), and the heat dissipation The seat 422 is preferably made of ceramics, but is not limited thereto. It is electrically connected with the elongated circuit board 41, and when the LED die 421 is adhered to the heat sink 422, it can also obtain power supply, and the LED made of SMT has a height of only a few millimeters, so The thinner shape is helpful for the overall arrangement in the light box, and the strip-shaped light-emitting diodes 40 can be produced in a modularized manner, and the required length can be cut according to the size of the light box, which is very convenient.

A power control circuit board 50 is located in the housing 20 to control the power required to supply the aforementioned strip light emitting diodes 40; it includes an AC power supply unit 51 and a DC power supply unit 52, the AC power supply unit 51 The electric power is supplied from the external commercial power through the electric wire 53 , and is converted into a direct current voltage by the DC power supply unit 52 to supply the electric power required by the strip-shaped LED 40 . Since its circuit is a prior art, it will not be described in detail.

An electric storage unit 60 is connected to the power control circuit board 50 and is used to store electric energy at ordinary times. When the external AC power supply is interrupted, the power control circuit board 50 will automatically switch the circuit, and the electric storage unit 60 will supply the strip light Diode 40 required power. In this embodiment, the power storage unit 60 is composed of several secondary batteries connected in series, which are installed in the accommodation space 25 of the housing 20, as shown in FIG. Column 26 is positioned.

With the above technical means, the utility model has the following advantages:

1. The light-emitting diode 42 enters the light guide plate 30 from the side, and is used after the light diffuses.

The sign 31 on its board is bright, and this diffusion light is different from that illuminated by fluorescent tubes in the prior art.

Bright light is different in that not only is the light source uniform and soft, but also the marking 31 is clearly visible.

2. Due to the arrangement of light-emitting diodes (LEDs) of the present invention, the entire light box is thinner and symmetrical, and the display surface is located in the center to give people a comfortable and smooth visual experience, which can increase the aesthetic feeling of the installation site. Will not be an obstacle to spoil the interior design.

3. The LED of the present invention has the advantages of power saving and long service life, which can save energy, prolong the emergency power supply time, and be safe to use.

The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the utility model, All still belong to within the scope of the technical solution of the utility model.

In summary, the utility model fully meets the needs of industrial development in terms of structural design, practicability and cost-effectiveness, and the disclosed structure also has an unprecedented innovative structure, novelty, creativity and practicability, and meets the needs of industrial development. According to the requirements of the new patent requirements, the application is filed in accordance with the law.

Claims (5)

1. An emergency direction indicator light, characterized in that it comprises: A shell is composed of a bottom shell and a cover, and the front of the cover has a hollow part; A light guide plate is installed in the housing, and its surface is provided with a mark of a predetermined text pattern, which is displayed by the hollow part of the cover; A strip-shaped light-emitting diode, which is composed of a plurality of light-emitting diodes arranged on an elongated circuit board, is arranged in the housing and is located on the side of the light guide plate, so that the light emitted by the light-emitting diodes is emitted by the light guide plate. Side light diffusion; A power control circuit board, which is located in the casing, is used to control the power supply required for the aforementioned strip-shaped light-emitting diodes; An electric storage unit is connected with the power control circuit board. 2. The emergency blinker according to claim 1, wherein said light guide plate is made of acrylic resin plate. 3. The emergency indicator light according to claim 1, wherein the light-emitting diodes are mounted on the heat sink of the elongated circuit board by direct surface-attaching of dies. 4. The emergency direction indicator light according to claim 3, characterized in that the heat sink is made of ceramics, and its bottom is electrically connected to the elongated circuit board. 5. The emergency direction indicator light according to claim 1, characterized in that said power storage unit is composed of several secondary batteries.

Images