CN2141780Y - Buzz and flash relay - Google Patents

Abstract

The utility model discloses a flash buzzer which is suitable for the turning lamps of the various home-made automobiles. When a general flash buzzer is adopted, a flasher and a buzzer are installed in the inner of the same outer shell, the flasher adopts an electric heating relay or an oscillating circuit, and the noise of the buzzer is greater than equal to 80dB when the buzzer sends out buzz sound; so the physical and mental health of a driver is influenced, and the poor reliability of the flasher can be achieved. When the utility model is adopted, a flash circuit and the buzzer are respectively installed in the inner of two outer shells; while in use, a flash relay which is installed in the inner of the driving room can send out the rhythmic drip sound, and the sound of the flash relay is less than or equal to 30dB; so the driver is reminded to turn off the turning lamps after the automobile turns. The flash circuit adopts an N E555 integrated circuit to form a monostable circuit control relay. The utility model has the advantages of long service life, stable reliability, obvious flashing, etc.

Description

Buzz and flash relay

The utility model is applicable to the steering indicating light of the various domestic automobiles of control.The integrated product of general flashing buzzer, flasher relay and buzzer phone are installed in the same shell, flasher circuit, often adopt electrothermal relay or electron oscillator.During automobile turning, buzzer phone drips rings, and its sound equipment 〉=80dB though help traffic safety, has really increased the noise in the operator's compartment, the long-time physical and mental health that can influence chaufeur of using, electrothermal relay poor reliability simultaneously, flash of light instability.For the reliability that makes chaufeur that a good working environment be arranged and to improve flash of light is designed the utility model, i.e. buzzing flasher relay.

The utility model is made up of buzzer phone and flasher circuit two parts.As shown in Figure 1: 1. frame of broken lines is flasher circuit partly among the figure, by NE ₅₅₅And resistance R ₁R ₂R ₃Capacitor C ₁C ₂Monostable shape circuit and the switch transistor T formed ₁, relay J is formed, the open contact K of relay _JWith resistance R ₂Parallel connection, the outer lead of moving contact are E _CThe power connection positive pole, the outer lead L of fixed contact switches through to K switch, the outer lead D bonding of public ground wire in the circuit.Frame of broken lines is 2. partly for ring device circuit, by transistor T among the figure ₂T ₃And resistance R ₅R ₆R ₇Diode D ₁Form audio oscillator circuit with piezoelectric ceramic piece YD, two outer lead A, B by lead respectively with flasher circuit in two outer lead E _CConnect with L.Frame of broken lines is the steering indicating light circuit on the automobile with the external circuit, is made up of pole changer K and steering indicating light.Principle of work of the present utility model is as follows: after flasher circuit is connected with the mains, and capacitor C ₁On voltage be charged to and equal power line voltage V _C1=V _EC, NE ₅₅₅The output of circuit 3 pin is low level V ₃=0 circuit is in stable state, switch transistor T ₁Turn-off.When turn signal swich K connects, buzzer phone by pole changer K and steering indicating light over the ground conducting form the loop buzzer phone and begin to ring, capacitor C simultaneously ₁Pass through resistance R ₃Discharge over the ground with steering indicating light, through t discharge time ₁After, capacitor C ₁On voltage drop to zero, V _C1=0, NE ₅₅₅The output of circuit 3 pin is high level V ₃The upset of=1 monostable circuit is temporarily steady shape, switch transistor T ₁Conducting, relay J adhesive, open contact K _JConnect.Resistance R ₂By short circuit, buzzer phone stops to ring, and steering indicating light is lighted.At this moment resistance R ₃On voltage equal power line voltage V _R3=V _ECCapacitor C ₁Beginning is through resistance R ₃Charging is through charging duration t ₂After, capacitor C ₁On voltage equal power line voltage V _C1=V _ECThe circuit of stable state end temporarily reverts to stable state, NE ₅₅₅The output of circuit 3 pin is low level V ₃=0 switch transistor T ₁Turn-off relay normally open contact K _JDisconnect, steering indicating light extinguishes buzzer phone and begins to ring.Turn signal swich K is during connecting, and upset and recovery that two states of monostable circuit do not stop are glistened and buzzing hockets open contact K _JWhen switching on and off, send rhythmical " drip and rattle away " sound.

The difference of the utility model and other flashing buzzer is that flasher relay and buzzer phone are installed in respectively in two shells, and except that can ring flasher relay of buzzer phone can send rhythmical " drip and rattle away " sound simultaneously, flasher circuit adopts electric NE ₅₅₅The monostable circuit control relay J that integrated circuit is formed.

The utility model in use, buzzer phone is installed in outside the operator's compartment, flasher relay is installed in the operator's compartment, the outer buzzer phone of operator's compartment can remind the pedestrian to take care during turning, flasher relay in the operator's compartment sends rhythmical " drip and rattle away " sound, its sound equipment≤30dB can remind the driver to extinguish steering indicating light after turning.The utility model also has advantages such as long service life is stable, reliable, flash of light is obvious.

Claims (2)

1, a kind of buzzing flasher relay is characterized in that being made up of flasher circuit and buzzer circuit two parts, is installed in respectively in two shells.

2, relay according to claim 1 is characterized in that flasher circuit is by NE ₅₅₅Integrated circuit and resistance R ₁R ₂R ₃Capacitor C ₁C ₂Switch transistor T ₁Form the open contact K of relay J with relay J _JWith resistance R ₂In parallel.

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