CN2132187Y

CN2132187Y - Multifunction detector for car circuit

Info

Publication number: CN2132187Y
Application number: CN 92217572
Authority: CN
Inventors: 易军
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-08-06
Filing date: 1992-08-06
Publication date: 1993-05-05
Anticipated expiration: 2002-08-06

Abstract

The utility model relates to a circuit detector of automobiles, which has the functions of automobile circuit automatic display and alarm, automobile circuit fault detection, etc. The utility model is mainly composed of a body case and a circuit board which is composed of a power supply automatic conversion circuit, a voltage display and detection, a detection circuit of electricity existence or nonexistence, a wire breaking detection circuit, a headlamp automatic conversion and alarm circuit, an automatic display and alarm circuit, etc. and the utility model is connected with the circuit of an automobile. The utility model adopts electronic elements such as a thermosensitive relay, a luminous diode, a photoelectric coupling device, a music integrated block, etc. Therefore, the utility model is a multifunctional circuit detector of automobiles which has the advantages of simple structure and convenient use.

Description

Multifunction detector for car circuit

The utility model relates to a kind of automotive circuit detector.

At present, the circuit protection form of taking on the automobile circuit mainly contains two kinds, and a kind of is ball bearing made using protection form, and promptly by burning insurance with holding circuit, this mode is simple, is convenient to maintenance.Another kind is a way of taking many branch road power supplies, and its advantage is that consumer can not quit work because of breaking down, but complex circuit does not have automatic Presentation Function, is not easy to maintenance.

The purpose of this utility model be to provide a kind of have automatic conversioning power, automatically show fault, report to the police automatically, the automobile circuit multi-tester of fault detection capability.

The purpose of this utility model is achieved in that

1, adopt two circuits that consumer is powered, and by power supply automatic switching circuit conversion electric power;

2, setting has or not electro-detection and break detection circuit, detects the external circuits fault with test pencil;

3, headlight is set and changes warning circuit automatically, when big circuit for lamp broke down, sounding alarm and conversion automatically made the headlight operate as normal;

4, adopt light emitting diode and music-integrating block, luminous demonstration and sounding alarm when external circuits breaks down.

Circuit of the present utility model has been owing to adopted electronic component such as thermal relay, light emitting diode, music-integrating block and be provided with testing circuit and multiple safety apparatus, has automatic conversioning power, shows functions such as fault, warning automatically.

Accompanying drawing 1 is the utility model circuit diagram;

Accompanying drawing 2 is the utility model machine shell panel synoptic diagram.

Among the figure: 1-ammeter 2-display lamp 3-loudspeaker 4-test pencil jack 5-switch

Below in conjunction with a description of drawings embodiment of the present utility model.

The utility model is shown testing circuit, is had or not that power detection circuit, break detection circuit, headlight are changed warning circuit automatically, circuit board and the casing formed of Display and Alarm Circuit constitutes automatically by power supply automatic switching circuit, voltage, be connected with the consumer on the automobile, be used for automatically showing and detecting the situation of automobile circuit.Circuit board is fixed on the inside of casing.On the front plate of casing, be fixed with the light emitting diode that shows usefulness in voltage table V, K switch, loudspeaker Y and the circuit, also have test pencil jack A, B, C.At the back side of casing the input and output joint is arranged, external power supply is connected with its input adapter by lead, and automobile electrical equipment is connected with its out splice going splice by lead.

The power supply automatic switching circuit is made up of LED 6 LED7, resistance R 13 R14, fuse RD7 RD0, relay YJ2, thermal relay RJ1 and K switch 2.

The utility model is to two circuits of consumer power supply employing, article one, be that power supply enters consumer (A, B through K switch 1, fuse RD6 ...), second is that power supply promptly passes through the power supply automatic switching circuit through relay YJ2 and thermal relay RJ1(when total insurance RD6 blows) enter consumer.When article one supply line just often, LED 6 does not show that relay YJ2 coil gets electric, its normally closed contact tripping becomes normally opened contact, has cut off the second line powering.When total insurance RD6 of article one supply line blows, LED 6 luminous demonstration faults, relay YJ2 coil losing electricity, the closing of contact, to the second line powering, power supply enters consumer through thermal relay RJ1, insurance RD0.At this moment, the luminous demonstration second of LED7 line powering.K switch 2 and insurance RD7 connect, and make the usefulness of standby insurance.

Voltage demonstration testing circuit is made up of K switch 3, voltage table V.K switch 3 is connected with voltage table V by test pencil jack A, and when K switch 3 was closed, voltage table indication power supply and circuit voltage disconnected K3, can detect the magnitude of voltage of automobile circuit by test pencil.

Break detection circuit is composed in series by LED 1 and resistance R 1, R1 ground connection, and LED1 meets test pencil jack B.Test pencil is inserted test pencil hole B, can be used to detect external circuits and whether break.During detection,, when light emitting diode is not luminous, illustrate that line is not disconnected when the two ends of pointing to certain line with test pencil, luminous when an end, when the other end is not luminous, illustrate that line is disconnected.

Have or not power detection circuit to be composed in series by LED 2 and resistance R 2, R2 connects power supply, and LED2 meets test pencil jack C.Test pencil patchhole C promptly be can be used to detect have or not electricity on the external circuits, LED2 was luminous when electricity was arranged, and is not luminous when not having electricity.

The automatic translation circuit of headlight power supply is made up of resistance R 3～R10, triode BG1, BG2, LED 3, relay YJ1, photoelectronic coupler spare/IC, fuse RD1～RD3, K switch 4, change optical diode LED4.The base resistance R3 of triode BG1 collector resistance R5 in parallel, base resistance R4 emitter in parallel, the base stage of BG2 links to each other with BG1 collector resistance R6, the emitter and collector of BG2 is connected with relay YJ1, photoelectronic coupler spare/IC input end connects the base stage of BG1, and output terminal connects headlight and music-integrating block/IC1.When circuit just often, power supply is through insurance RD2, R10 and LED4, this moment, LED4 showed a kind of color, LED 3 does not show.RD3 is standby insurance.After insurance RD2 blew, LED4 became another kind of color, the luminous demonstration of LED3, and at this moment, automatic switching circuit starts, and send power supply to headlight by resistance R 7 upper ends.

Automatically demonstration and warning circuit are formed by becoming optical diode, resistance, fuse, music-integrating block and loudspeaker.Fuse is in parallel with the change optical diode of resistance in series, and is connected with the d type flip flop of consumer and music-integrating block.In circuit, adopt the variation of double-colored change optical diode and single color LED whether to show that a kind of state judges, adopt music integrated block IC 1 to make sound horn by the D trigger end.According to different automobile models, can be set corresponding the demonstration automatically and warning circuit.

Claims

1, a kind of automotive circuit detector, it is characterized in that by power supply change automatically, voltage show to detect, have or not electro-detection, burn out detection, headlight to change circuit board and the casing that circuit such as warnings, automatic display alarm form automatically forms, described circuit board is fixed on the inside of casing, on the front plate of casing, be fixed with the light emitting diode of voltage table, switch, loudspeaker and demonstration usefulness, also have the test pencil hole, on the casing backplate, be fixed with the input and output joint.

2, detector according to claim 1 is characterized in that the power supply automatic switching circuit is made up of LED 6, LED7, resistance R 13, R14, fuse RD7, RD0, relay YJ2, RJ1 and K switch 2.

3, detector according to claim 1 is characterized in that voltage shows that testing circuit is made up of K switch 3, voltage table V, and K switch 3 is passed through test pencil jack A and connected with voltage table V.

4, detector according to claim 1 is characterized in that break detection circuit is composed in series by LED 1 and resistance R 1, R1 ground connection, and the output terminal of LED1 connects test pencil jack B.

5, detector according to claim 1 is characterized in that having or not power detection circuit to be composed in series by LED 2 and resistance R 2, and R2 connects power supply, and the input end of LED2 connects test pencil jack C.

6, detector according to claim 1, it is characterized in that headlight changes warning circuit automatically by resistance R 3～R10, triode B1, BG2, diode/LED3, LED4, relay YJ1, photoelectronic coupler spare IC, fuse RD1～RD3 and switch are formed, the base resistance R3 of triode BG1 collector resistance R5 in parallel, base resistance R4 emitter in parallel, the base stage of BG2 links to each other with the collector of BG1, the emitter and collector of BG2 is connected with relay YJ1, the input end of photoelectronic coupler spare IC connects the base stage of BG1, and output terminal connects headlight and music integrated block IC 1.

7, detector according to claim 1, it is characterized in that automatic Display and Alarm Circuit forms by becoming optical diode, resistance, fuse, music-integrating block and loudspeaker, the change optical diode parallel connection that fuse is connected with resistance in series, and be connected with the d type flip flop of consumer and music-integrating block.