CN2224121Y

CN2224121Y - Universal electronic flasher for motor vehicle

Info

Publication number: CN2224121Y
Application number: CN 94222970
Authority: CN
Inventors: 陈学理
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-10-12
Filing date: 1994-10-12
Publication date: 1996-04-10
Anticipated expiration: 2004-10-12

Abstract

The utility model provides a universal electronic flasher for motor vehicles. The arranged voltage-stabilizing tube DW< 1 > is connected between the 4, 8 feet and the 1 foot of the IG< 1 > in parallel. An isolation diode D1 is connected between the normally open contact KA < 1-1 >, and the resistor R1 of a relay KA<1>. The universal electronic flasher for motor vehicles can reliably operate in the voltage range from DC10V to 28V. The flash frequency is stable. The utility model is suitable for turning indication of the motor vehicles which have the service voltage of DC12V or DC24V.

Description

Self-propelled vehicle universal electric Der Blink und Abblendschalter

The utility model relates to a kind of electronic flasher that is suitable for various motor turning indications.

No matter existing electronic flasher is that contact or breakerless is arranged, and operating voltage is divided into two kinds of DC12V or DC24V, and the electronic flasher of these two kinds of operating voltages can not exchange when using, and therefore gives using and keeping in repair and make troubles of guarantee factory and chaufeur.

The utility model purpose be to provide a kind of can be in the operating voltage range of DC10-28V reliable operation, flicker frequency is stable, is suitable for the self-propelled vehicle universal electric Der Blink und Abblendschalter that various self-propelled vehiclees use.

For achieving the above object, electronic flasher provided by the utility model comprises the monostable circuit of being made up of 555 o'clock base integrated packages, relay K A ₁, with set stabilivolt DW ₁Be attempted by between 4,8 pin and 1 pin of 555 o'clock base integrated packages.When input voltage is DC10-28V, can guarantee that 555 o'clock base integrated packages are operated in stabilivolt DW ₁Voltage stabilized range in, the resistance R of relay normally open contact and monostable circuit ₁Between serial connection isolation diode D ₁Under the closed situation of the open contact of relay, can effectively prevent power supply by open contact to capacitor C ₁Charging, thus the stable of flicker frequency guaranteed.

The utility model 6 months on probation through entrucking, prove its can be between operating voltage DC10-28V reliable operation, flicker frequency is stable, the self-propelled vehicle that can be suitable for operating voltage and be DC12V or DC24 uses.

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1-be electrical schematic diagram of the present utility model.

As shown in the figure, the utility model is mainly by monostable circuit and relay K A ₁Form, monostable circuit comprises 555 o'clock base ic chips ₁, resistance R ₁, R ₂, capacitor C ₁, relay K A ₁Be attempted by IC ₁1,3 pin between, relay K A ₁Open contact KA _1-1Be serially connected between positive source B and the change-over swith K.With stabilivolt DW ₁Be connected in parallel on

IC

₁4,8 pin and 1 pin between, in order to guarantee stabilivolt DW ₁Reliable operation is at the anodal B and the IC of

power supply

₁4,8 pin between be serially connected with dropping resistor R ₃, isolation diode D ₁Negative pole and relay K A ₁Open contact KA _1-1Link to each other, its positive pole is connected on resistance R ₁On.After the self-propelled vehicle switch was opened, power supply added to B, E two ends, when pole changer places midway location, because capacitor C ₁Both end voltage can not be suddenlyd change, so IC ₁2,6 pin be in low level, its 3 pin output high level is attempted by IC ₁1,3 pin between relay K A ₁Get electric adhesive, be connected the relay K A between positive source B and the pole changer K ₁Open contact KA _1-1Closure is owing to be subjected to isolation diode D ₁Buffer action, power supply can only pass through resistance R ₃, R ₂To capacitor C ₁Capacitor C is worked as in charging ₁Two ends charging valtage 〉=2/3VDW ₁During the voltage stabilizing value, IC ₁Upset, its 3 pin output low level, relay K A ₁Dead electricity discharges, its open contact KA _1-1The disconnection that resets, transient process finishes, and pole changer K is connected with BD left side lamp, owing to (R ₂+ R ₃)＞R ₁, this moment capacitor C ₁Through resistance R ₁, isolation diode D ₁, pole changer K, BD ₁C is worked as in left side lamp, power cathode E discharge ₁Both end voltage≤1/3DW ₁During the voltage stabilizing value, IC ₁Upset, IC ₁3 pin output high level, relay K A ₁Get electric adhesive, open contact KA _1-1Closure is lighted a left turn indicator lamp BD left side, at this moment, and isolation diode D ₁Negative pole is in high potential, C ₁Discharge finishes to transfer to charging, as long as C ₁Both end voltage 〉=2/3VDW ₁During the voltage stabilizing value, IC ₁Upset once more, its 3 pin output low level, relay K A ₁Dead electricity discharges, open contact KA _1-1Disconnect, left turn indicator lamp BD extinguishes on a left side, go round and begin again, and the constantly flicker of a left turn indicator lamp BD left side, in like manner, the right lamp of pole changer K and BD is connected, the constantly flicker of right turn indicator lamp BD the right.

The utility model also can will be attempted by IC ₁1,3 pin between relay K A ₁Be changed to high power transistor V ₁, V ₁Base stage pass through resistance R ₄With 555 o'clock base ic chips ₁3 pin connect, its emitter change-over swith K connects, collecting electrode is connected on the positive source B, passes through IC ₁Upset, control high power transistor V ₁Conducting with end, thereby the flicker of control turning indicator, the principle of work of this contactless electron Der Blink und Abblendschalter has the identical of contact electronic flasher with above-mentioned.

Claims

1, a kind of self-propelled vehicle universal electric Der Blink und Abblendschalter comprises monostable circuit, relay K A ₁, wherein monostable circuit was by 555 o'clock base ic chips ₁, resistance R ₁, R ₂, capacitor C ₁Form, it is characterized in that being provided with stabilivolt DW ₁, stabilivolt DW ₁Be connected in parallel on IC ₁4,8 pin and 1 pin between, the negative pole of isolation diode D1 is connected relay K A ₁Open contact KA _1-1On, its positive pole links to each other with resistance R 1.

2, electronic flasher according to claim 1 is characterized in that resistance R ₃Be serially connected in positive source B end and stabilivolt DW ₁Between the negative pole.