CN201264569Y - Automobile fuse blown-out intelligent changer - Google Patents

Automobile fuse blown-out intelligent changer Download PDF

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Publication number
CN201264569Y
CN201264569Y CNU2008201043574U CN200820104357U CN201264569Y CN 201264569 Y CN201264569 Y CN 201264569Y CN U2008201043574 U CNU2008201043574 U CN U2008201043574U CN 200820104357 U CN200820104357 U CN 200820104357U CN 201264569 Y CN201264569 Y CN 201264569Y
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China
Prior art keywords
circuit
resistance
series connection
fuse
relay
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Expired - Fee Related
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CNU2008201043574U
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Chinese (zh)
Inventor
陆镇椿
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Individual
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Individual
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Priority to CNU2008201043574U priority Critical patent/CN201264569Y/en
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Publication of CN201264569Y publication Critical patent/CN201264569Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model provides a vehicle fuse blown intelligent switch, mainly comprising a load power supply step-down circuit, a spare fuse circuit, a resistor string partial-voltage sampling circuit, a voltage-comparison amplification circuit and a relay control circuit. The vehicle fuse blown intelligent switch has the advantages of small size, easy installation and intelligent detecting; when the load has not short circuit, the spare fuse is bridged immediately, and a luminescent diode is used for indication; in case of the short circuit of the load, the spare fuse is not bridged, but an alarm is given. If the vehicle fuse blown intelligent switch is mounted on a vehicle, the problems of sudden shut-down on the way, poor braking effect and traffic accident after the extinction of the lamplight are avoided, and the driving safety is ensured.

Description

Automobile fuse blows intelligent changing-over device
Technical field
The utility model relates to a kind of automobile fuse and blows intelligent changing-over device.
Background technology
At present, after the blowout of automobile, mainly be to change by artificial, but when not having the instrument measurement load whether to exist to change wire fuse under the situation of short trouble, be easy to cause that the wire fuse that newly changes is blown phenomenon immediately, or enlarge fault coverage, can rise when serious and burn car etc.Simultaneously, after the blowout of automobile computer control part,, make brake system can not get the vacuum pressure that driving engine is sent here because driving engine extinguishes automatically, cause the braking effect difference or the car that travels can't be kept to the side under a period of time and check, be easy to take place traffic accident.In addition, if night at running on expressway, the wire fuse of Der Scheinwerfer mit FernlichtAbblendlichtStandlicht is blown suddenly, forces the driver to keep to the side immediately to check that traffic accident also takes place easily for this.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of automobile fuse and blows intelligent changing-over device, when on automobile, installing and using, in case automobile fuse is blown, not have in load under the situation of short trouble immediately automatically and connect backup fuse, proof load continues normal operation; And when load has short trouble to exist, the prompting of sounding.
The technical scheme that its technical matters that solves the utility model adopts is: this automobile fuse blows intelligent changing-over device, comprise housing, backup fuse socket, reset button switch, light-emitting diode and draw three leads from the housing wire hole, it is characterized in that: it is provided with load power source reduction voltage circuit, backup fuse circuit, resistance string and gets pressure sampling circuit, voltage contrasting amplified circuit and control relay circuit, and the connection mode of circuit is: bulb RL one end and relay DJ 1-1The series connection of normal contact point after receive the positive supply input end, the other end of bulb RL and resistance R 3Be connected with the resistance series connection pressure sampling circuit and first voltage contrasting amplified circuit after the series connection, another voltage contrasting amplified circuit is connected an end of backup fuse and relay DJ with the series connection point of resistance series connection pressure sampling circuit again 3-1Open contact series connection back link series relay DJ again with bulb RL 1-1Normal contact point, receive positive electrical input then, the other end of backup fuse and the resistance series connection bleeder circuit and first voltage contrasting amplified circuit are connected, second voltage contrasting amplified circuit connects the resistance bleeder circuit of connecting.When the utility model automobile fuse blows intelligent changing-over device and installs and uses on automobile, in case automobile fuse is blown, does not have in load under the situation of short trouble immediately automatically and connect backup fuse, proof load continues normal operation; And when load has short trouble to exist, the prompting of sounding.
The beneficial effects of the utility model are:
1, volume is little, simple installation.
2, Intelligent Measurement when load does not have short trouble, immediately and connect backup fuse, and is indicated with light-emitting diode; When there is short trouble in load, not and connect backup fuse, but do not send chimes of doom.
3, on automobile, install and use this automobile fuse and blow intelligent changing-over device, can effectively avoid automobile owing to after stopping working suddenly in the way, cause traffic accident easily after braking effect difference and light extinguish.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is further specified.
Fig. 1 is a shape assumption diagram of the present utility model.
Fig. 2 is a circuit diagram of the present utility model.
The specific embodiment
From Fig. 1, see, this automobile fuse blows intelligent changing-over device and can be installed in the square casing 1, housing 1 surface is provided with backup fuse socket 2, reset button switch 3 and light emitting diode lamp 4, also offer wire hole 5 on the housing 1, in housing, draw three leads in wire hole 5, wherein two is respectively positive electricity input line 6, positive electricity output line 7, and other one is negative power line 8.
In Fig. 2, see, this automobile fuse blows intelligent changing-over device, comprise that load power source reduction voltage circuit, backup fuse circuit, resistance string get pressure sampling circuit, voltage contrasting amplified circuit and control relay circuit, the connection mode of circuit is: bulb RL one end and relay DJ 1-1The series connection of normal contact point after receive the positive supply input end, the other end of bulb RL and resistance R 3Be connected with the resistance series connection pressure sampling circuit and first voltage contrasting amplified circuit after the series connection, another voltage contrasting amplified circuit is connected an end of backup fuse and relay DJ with the series connection point of resistance series connection pressure sampling circuit again 3-1Open contact series connection back link series relay DJ again with bulb RL 1-1Normal contact point, receive positive electrical input then, the other end of backup fuse and the resistance series connection bleeder circuit and first voltage contrasting amplified circuit are connected, second voltage contrasting amplified circuit connects the resistance bleeder circuit of connecting.Described load power source reduction voltage circuit is by bulb RL and resistance R 3Be composed in series connect with the resistance R of pressure sampling circuit of series connection back one end 1After the connection again with the ic chip of first voltage contrasting amplified circuit 12,6 pin connect the other end and relay DJ 1-1The series connection of normal contact point after receive the positive supply input end; Described backup fuse circuit is by backup fuse BX and relay DJ 3-1Open contact series connection after again with DJ 1-1Normal contact point be composed in series relay DJ 1-1The other end be connected the other end of BX and R with positive electrical input 1And ic chip 12,6 pin connect; Described resistance series connection pressure sampling circuit is by R 1And R 2Be composed in series R 1The other end be connected and resistance R with backup fuse BX 3Connect R 2Other end power connection negative pole, R 1And R 2Series connection point and ic chip 22,6 pin connect; Described first voltage contrasting amplified circuit is by ic chip 1Form, second voltage contrasting amplified circuit is by ic chip 2Form IC 1, IC 2Model all is NE555, IC 12,6 pin connect R 1, BX, R 3, R 4, IC 22,6 pin link to each other back and resistance R 1, R 2Connect IC 1And IC 24,8 pin meet positive electrical input, 1 pin power connection negative pole, IC 13 pin succeed electrical equipment, IC 23 pin connect diode cathode; Control relay circuit is by relay DJ 1, DJ 2, DJ 3Form DJ 1One termination power negative pole, another termination IC 13 pin, DJ 2Back one termination D connects with reset switch AN 4Negative pole, other end power connection negative pole, DJ 3A termination power negative pole, another termination DJ 2-2Open contact.
Principle of work: in Fig. 2, R represents resistance, and D represents diode, and RL represents 12 volts of bulbs, and IC represents integrated package, and DJ represents relay, and AN represents button switch, and BX represents wire fuse, and LED represents light-emitting diode, and HTD represents buzzer phone.D 1, D 2, D 3Effect be that the peak inverse voltage that two ends produce when preventing that relay from discharging punctures integrated package, D 4, D 5Play buffer action.R 3Be the low resistance high-power resistance, the former car wire fuse of the power ratio of backup fuse power is big slightly.When the B point voltage is 12 volts, set R 1And R 2Resistance value make the C point voltage just in time be 4.1 volts.R 4And R 2Resistance equate, be about about 1000 Europe.
Under normal circumstances, power supply from the A point through former car wire fuse → B point to the power supply of the electricity consumption device of automobile, at this moment since the time base ic chip 1And IC 22,6 pin trigger voltages greater than 4 volts, promptly greater than 1/3 integrated package self operating voltage, so IC 1And IC 23 pin outgoing levels be low level, so relay DJ 1And DJ 2Not adhesive, circuit is ready.
When the electricity consumption device is short-circuited fault, excessive by the electric current of former car wire fuse, make former car blowout, at this moment positive supply changes point → DJ from A into 1-1Normal contact point → RL → R 3→ B point continues to the power supply of electricity consumption device, but because the electricity consumption device has short trouble to exist, and forces the B point voltage to drop to 0 volt or near 0 volt, at this moment makes ic chip 1And IC 2Internal circuit set, i.e. IC 1And IC 23 pin output change high level, DJ into 1And DJ 2The work of adhesive simultaneously.DJ 1Adhesive → cut-out DJ 1-1Normal contact point, equal to have cut off backup fuse circuit and R 3Circuit, prevent R 3Heating burns out.DJ in addition 1DJ works → has connected 1-1Open contact make buzzer phone HTD send chimes of doom, expression electricity consumption device has short trouble to exist, and can not change former car wire fuse.And relay DJ 2Adhesive work does not have much effects, just DJ 2Produce self-locking, after short trouble was got rid of, positive supply was through R 4To IC 12,6 pin provide voltage to make DJ greater than 4 volts 1Discharge, this moment is because DJ 2Self-locking, DJ 1Discharge back → DJ 3Get electric adhesive work → connection DJ 3-1Open contact, equal automatically and connect backup fuse.Click reset button after changing former car wire fuse, circuit is ready automatically.
If because the electricity consumption device is overheated or other factors makes former car blowout, at this moment positive supply is equally from A point → DJ 1-1Normal contact point → RL → R 3→ B point continues power supply to the electricity consumption device, but this moment the B point voltage become greater than 4 volts less than 11 volts, make the C point voltage be lower than 4 volts, IC 23 pin output high level → DJ 2Adhesive → DJ 2Self-locking → DJ 3Adhesive → connection DJ 3-1Open contact, equal and met backup fuse BX, use the operating voltage of electrical part to recover normal, and make HTD and LED send acousto-optic to represent to use backup fuse, click reset button after changing former car wire fuse, make DJ 2And DJ 3Outage discharges, and circuit is ready automatically.

Claims (6)

1. an automobile fuse blows intelligent changing-over device, comprise housing (1), backup fuse socket (2), reset button switch (3), light emitting diode lamp (4) and draw three leads from housing wire hole (5), it is characterized in that: it is provided with load power source reduction voltage circuit, backup fuse circuit, resistance string and gets pressure sampling circuit, voltage contrasting amplified circuit and control relay circuit, and the connection mode of circuit is: bulb RL one end and relay DJ 1-1The series connection of normal contact point after receive the positive supply input end, the other end of bulb RL and resistance R 3Be connected with the resistance series connection pressure sampling circuit and first voltage contrasting amplified circuit after the series connection, another voltage contrasting amplified circuit is connected an end of backup fuse and relay DJ with the series connection point of resistance series connection pressure sampling circuit again 3-1Open contact series connection back link series relay DJ again with bulb RL 1-1Normal contact point, receive positive electrical input then, the other end of backup fuse and the resistance series connection bleeder circuit and first voltage contrasting amplified circuit are connected, second voltage contrasting amplified circuit connects the resistance bleeder circuit of connecting.
2. automobile fuse according to claim 1 blows intelligent changing-over device, it is characterized in that the load power source reduction voltage circuit is by bulb RL and resistance R 3Be composed in series connect with the resistance R of pressure sampling circuit of series connection back one end 1After the connection again with the ic chip of first voltage contrasting amplified circuit 12,6 pin connect the other end and relay DJ 1-1The series connection of normal contact point after receive the positive supply input end.
3. automobile fuse according to claim 1 and 2 blows intelligent changing-over device, it is characterized in that the backup fuse circuit is by backup fuse BX and relay DJ 3-1Open contact series connection after again with DJ 1-1Normal contact point be composed in series relay DJ 1-1The other end be connected the other end of BX and R with positive electrical input 1And ic chip 12,6 pin connect.
4. automobile fuse according to claim 3 blows intelligent changing-over device, it is characterized in that resistance series connection pressure sampling circuit is by R 1And R 2Be composed in series R 1The other end be connected and resistance R with backup fuse BX 3Connect R 2Other end power connection negative pole, R 1And R 2Series connection point and ic chip 22,6 pin connect.
5. automobile fuse according to claim 3 blows intelligent changing-over device, it is characterized in that first voltage contrasting amplified circuit is by ic chip 1Form, second voltage contrasting amplified circuit is by ic chip 2Form IC 1, IC 2Model all is NE555, IC 12,6 pin connect R 1, BX, R 3, R 4, IC 22,6 pin link to each other back and resistance R 1, R 2Connect IC 1And IC 24,8 pin meet positive electrical input, 1 pin power connection negative pole, IC 13 pin succeed electrical equipment, IC 23 pin connect diode cathode.
6. automobile fuse according to claim 3 blows intelligent changing-over device, it is characterized in that control relay circuit is by relay DJ 1, DJ 2, DJ 3Form DJ 1One termination power negative pole, another termination IC 13 pin, DJ 2Back one termination D connects with reset switch AN 4Negative pole, other end power connection negative pole, DJ 3A termination power negative pole, another termination DJ 2-2Open contact.
CNU2008201043574U 2008-07-04 2008-07-04 Automobile fuse blown-out intelligent changer Expired - Fee Related CN201264569Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008201043574U CN201264569Y (en) 2008-07-04 2008-07-04 Automobile fuse blown-out intelligent changer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008201043574U CN201264569Y (en) 2008-07-04 2008-07-04 Automobile fuse blown-out intelligent changer

Publications (1)

Publication Number Publication Date
CN201264569Y true CN201264569Y (en) 2009-07-01

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106154154A (en) * 2016-09-05 2016-11-23 郭金虎 One key multiple-effect automobile fuse relay device for fast detecting

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106154154A (en) * 2016-09-05 2016-11-23 郭金虎 One key multiple-effect automobile fuse relay device for fast detecting

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20090701

Termination date: 20100704