CN201957292U

CN201957292U - Automatic bicycle tail lamp

Info

Publication number: CN201957292U
Application number: CN2010206637383U
Authority: CN
Inventors: 何霜; 赵成; 张�杰
Original assignee: Xian University of Technology
Current assignee: Xian University of Technology
Priority date: 2010-12-16
Filing date: 2010-12-16
Publication date: 2011-08-31
Anticipated expiration: 2020-12-16

Abstract

The utility model discloses an automatic bicycle tail lamp comprising a power module, an acceleration sensor module, a voltage comparator, an amplifying circuit and an LED lamp module. The power module is respectively connected with the acceleration sensor module and the voltage comparator, the acceleration sensor module is connected with the voltage comparator and used for converting the detected braking acceleration to the voltage value of output signal, and the output end of the voltage comparator is connected sequentially with the amplifying circuit and the LED lamp module. When the voltage value of the output signal of the acceleration sensor module is higher than a reference voltage value, the voltage comparator outputs a high level to light the LED lamp module through the amplifying circuit. The automatic bicycle tail lamp has the advantages of simple structure, convenience in use and ultra-low power, uses the active-lighting of the LED lamp module, turns on the lamp automatically according to the running situation of the bicycle, and has favorable practicability and convenience.

Description

The automatic cycle taillight

Technical field

The utility model relates to a kind of bicycle equipment technology field, is specifically related to a kind of automatic cycle taillight.

Background technology

Existing Bicycle Tail Light utilizes the reflection of light principle to send ruddiness.At night, street lamp, searchlight, neon light ... and reflex just takes place in the light-illuminating of various vehicles to Bicycle Tail Light, can point out back vehicle, avoided the generation of traffic accident, ensured our safety.But because its passive reflective principle, under situations such as in bad order, the bicycle brake suddenly of road conditions at night, can not play good warning function, security performance has to be strengthened.

Summary of the invention

The purpose of this utility model provides a kind of automatic cycle taillight, and it is simple in structure, and is easy to use, adopt active, self-action is luminous, super low-power consumption has good practicality and convenience.

The technical scheme that the utility model adopted is, the automatic cycle taillight, comprise power module, acceleration sensor module, voltage comparator, amplifying circuit and LED lamp module, power module is connected with voltage comparator with acceleration sensor module respectively, acceleration sensor module is connected with voltage comparator, and acceleration sensor module is used for detected bicycle brake brief acceleration is converted to the magnitude of voltage of output signal, the output of voltage comparator and amplifying circuit, the LED lamp module connects successively, and when the magnitude of voltage of acceleration sensor module output signal is higher than reference voltage level, voltage comparator output high level is lighted the LED lamp module by amplifying circuit then.

Power module, acceleration sensor module, voltage comparator, amplifying circuit and LED lamp module all are inserted on the same pcb board.

Power module adopts the LM1117 chip.Acceleration sensor module adopts the MMA7260 chip.Voltage comparator adopts the LM324 chip.Amplifying circuit adopts 9013 triodes.The LED lamp module is that the LED lamp of 15mA is formed by a plurality of rated current.

Automatic cycle taillight of the present utility model uses the LED lamp module active luminous, and according to the bicycle running situation, by the automatic bright lamp of amplifying circuit driving LED lamp module, has increased the fail safe of bicycle by voltage comparator; And super low-power consumption, easy for installation, have good practicality and convenience.

Description of drawings

Fig. 1 is the structural representation block diagram of automatic cycle taillight of the present utility model;

Wherein, 1. power module, 2. acceleration sensor module, 3. voltage comparator, 4. amplifying circuit, 5.LED lamp module.

Embodiment

Below in conjunction with the drawings and specific embodiments the utility model is elaborated.

Be illustrated in figure 1 as automatic cycle taillight of the present utility model, comprise power module 1, acceleration sensor module 2, voltage comparator 3, amplifying circuit 4 and LED lamp module 5.Wherein, power module 1 is connected with voltage comparator 3 with acceleration sensor module 2 respectively and the electric energy support is provided, acceleration sensor module 2 is connected with voltage comparator 3, and acceleration sensor module 2 is used for detected bicycle brake brief acceleration is converted to the magnitude of voltage of output signal, the output of voltage comparator 3 is connected successively with amplifying circuit 4, LED lamp module 5, when the magnitude of voltage of acceleration sensor module 2 output signals is higher than reference voltage level, voltage comparator 3 output high level are lighted LED lamp module 5 by amplifying circuit 4 then.

Power module 1, acceleration sensor module 2, voltage comparator 3, amplifying circuit 4 and LED lamp module 5 all are inserted on the same pcb board, and be so that make compact conformation, easy for installation.In use, pcb board is installed on the bicycle, gets final product.It has not only solved the insecurity of the passive reflective taillight of ordinary bicycle, and its super low-power consumption, has practicality and convenience.

Power module 1 adopts the LM1117 chip.Acceleration sensor module 2 adopts the MMA7260 chip.Voltage comparator 3 adopts the LM324 chip.Amplifying circuit 4 adopts 9013 triodes.LED lamp module 5 is that the LED lamp of 15mA is formed by a plurality of rated current.

Claims

1. automatic cycle taillight, it is characterized in that, comprise power module (1), acceleration sensor module (2), voltage comparator (3), amplifying circuit (4) and LED lamp module (5), described power module (1) is connected with voltage comparator (3) with acceleration sensor module (2) respectively, described acceleration sensor module (2) is connected with voltage comparator (3), described acceleration sensor module (2) is used for detected bicycle brake brief acceleration is converted to the magnitude of voltage of output signal, the output of described voltage comparator (3) and described amplifying circuit (4), described LED lamp module (5) connects successively, and when the magnitude of voltage of described acceleration sensor module (2) output signal is higher than reference voltage level, described voltage comparator (3) output high level is lighted LED lamp module (5) by amplifying circuit (4) then.

2. according to the described automatic cycle taillight of claim 1, it is characterized in that described power module (1), acceleration sensor module (2), voltage comparator (3), amplifying circuit (4) and LED lamp module (5) all are inserted on the same pcb board.

3. according to claim 1 or 2 described automatic cycle taillights, it is characterized in that described power module (1) adopts the LM1117 chip.

4. according to claim 1 or 2 described automatic cycle taillights, it is characterized in that described acceleration sensor module (2) adopts the MMA7260 chip.

5. according to claim 1 or 2 described automatic cycle taillights, it is characterized in that described voltage comparator (3) adopts the LM324 chip.

6. according to claim 1 or 2 described automatic cycle taillights, it is characterized in that described amplifying circuit (4) adopts 9013 triodes.

7. according to claim 1 or 2 described automatic cycle taillights, it is characterized in that described LED lamp module (5) is that the LED lamp of 15mA is formed by a plurality of rated current.