CN201110486Y - Taxi top lamp - Google Patents

Abstract

The utility model relates to a taxi dome light, in particular to a taxi dome light adopting a new light source, which comprises a dome light lamp holder, a lampshade, a luminous body and a power supply. The illuminant adopts LED, and multiple LEDs are connected in series to form a group, and multiple groups are arranged in parallel in the dome light. The utility model adopts LED luminous bodies to emit light in clusters, and has high brightness and light efficiency. An appropriate number of LED luminous bodies can be arranged according to the size of the dome light and actual needs, and the LED luminous bodies are small in size and light in weight, and can withstand high-intensity mechanical shocks and vibrations without difficulty. Broken, its service life can reach 5-10 years, which can greatly reduce the replacement and maintenance costs of lamps, and it is almost maintenance-free in daily work.

Description

a taxi dome light

technical field

The utility model relates to a taxi dome light, in particular to a taxi dome light using a new light source.

Background technique

As the obvious mark of taxis, the taxi dome light is not only convenient for passengers to identify, but also can be used as an advertising carrier.

Existing taxi dome lights usually use fluorescent tubes and neon tubes as light sources, which not only have high power, but also consume a lot of power. Because they use electronic light field radiation to emit light, the filament is easy to burn out and has a short service life; , The lamp tube is easily broken and damaged by the impact of bumps or mechanical vibrations; and the fluorescent tube and neon tube are used, the brightness is not high, and sometimes it is difficult for passengers to distinguish.

Using the above-mentioned taxi dome light is not only unfavorable for energy saving, but also the maintenance cost is too high due to the frequent replacement of lamp tubes. In a modern society where energy is increasingly scarce and power supply is insufficient, it is particularly important to provide energy-saving, environmentally friendly and durable new light sources for taxi dome lights.

Utility model content

The purpose of the utility model is to provide a taxi dome light with high light efficiency, low power consumption and long service life.

The above-mentioned purpose of the utility model is achieved through the following technical solutions:

A taxi dome light, comprising a dome light lamp holder, a lampshade, a luminous body and a power supply, the dome light lamp holder is fixed on the roof surface of the vehicle, a plastic lampshade is arranged on it, the illuminant adopts LEDs, a plurality of LEDs are connected in series to form a group, and multiple groups are arranged in parallel in the ceiling light.

The LED is connected in series with several current suppression resistors, and an overcurrent and overvoltage protector is connected in the LED circuit.

LEDs can be arranged in a dome light in strips, rings or curves.

The utility model adopts LED luminous bodies to emit light in clusters, with high brightness and light efficiency, and the spectrum is almost entirely concentrated in the visible light frequency, and the efficiency can reach 50-200 lumens/watt; the power of each LED luminous body is 0.03-0.06 watts, and the power consumption is equal to the brightness The amount is only 1/3-1/2 of the neon light, and an appropriate number of LED illuminants can be set according to the size of the dome light and actual needs, which can avoid energy waste. The LED illuminant is small in size and light in weight, can withstand high-intensity mechanical shock and vibration, and is not easy to break. Its service life can reach 5-10 years, which can greatly reduce the replacement and maintenance costs of lamps, and it is almost maintenance-free in daily work.

In order to further illustrate the structural features and effects of the utility model, the utility model will be further described below in conjunction with the accompanying drawings.

Description of drawings

Fig. 1 is a LED installation structure diagram of an embodiment of the present invention;

Fig. 2 is the circuit diagram of the embodiment in Fig. 1;

Among them, 1——top lamp holder; 2—lampshade; 3—LED fixing device; 4—LED illuminant; 5—current suppression resistor; 6—overcurrent and overvoltage protector.

Detailed ways

As shown in Figure 1, the utility model comprises dome lamp holder 1, lampshade 2, LED illuminant 4 and power supply, dome lamp holder 1 is fixed on the roof surface by installing sucker and mounting bracket, is provided with plastic lampshade 2 on it. The two LED fixing devices 3 are fixed to the base plate of the dome lamp base by screws, and small holes arranged at equal distances are arranged on them. Three light emitters 4 and one current suppression resistor 5 are connected in series as a group, and each light emitter is encapsulated in the small hole of the LED fixing device 3 with epoxy resin; each LED fixing device is provided with 16 groups of LED light emitters, each The groups are connected in parallel on the two poles of the lead-in wires of the LED fixing device 3 . The LED circuit is also connected with an overcurrent and overvoltage protector 6 . The LED is connected to the battery in the car through a connecting wire.

Fig. 2 is a circuit diagram of this specific embodiment. Three LED illuminants 4 and one current suppression resistor 5 are connected in series to form a group, and there are 32 groups in total, and the groups are connected in parallel. An overcurrent and overvoltage protector 6 is also connected in the circuit.

The LEDs can be arranged in the dome light in other suitable shapes such as strips, rings, and curves.

The LED fixing device 3 can be an aluminum substrate, or a flexible board that can be bent at a large angle, so as to be suitable for taxi dome lights of different shapes and sizes.

The LED fixing device 3 can be fixed on the lamp holder of the dome lamp through screws, or can be arranged in the three-dimensional space formed by the lampshade and the lamp holder through the connecting bracket.

Of course, those of ordinary skill in the art should recognize that the above embodiments are only used to illustrate the utility model, rather than as a limitation to the utility model, as long as within the essential scope of the utility model, the above-mentioned The changes and modifications of the embodiments will fall within the scope of the claims of the present utility model.

Claims (3)

1. a taxi dome lamp comprises ceiling light lamp socket, lampshade, illuminator and power supply, and the ceiling light lamp socket is fixed on the roof face, which is provided with plastic lamp shade, it is characterized in that illuminator adopts LED, and a plurality of LED are connected into one group, organize parallel connection more and are laid in the ceiling light.

2. taxi dome lamp as claimed in claim 1 is characterized in that LED connects with several suppression resistance, is connected with an over-current overvoltage protector in the led circuit.

3. taxi dome lamp as claimed in claim 1 is characterized in that described LED is laid in the ceiling light with bar shaped, annular or shaped form.

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