CN203221929U

CN203221929U - Automobile direct-current arc failure detector

Info

Publication number: CN203221929U
Application number: CN 201320252810
Authority: CN
Inventors: 傅加发
Original assignee: FUJIAN JUNHAO ELECTRONICS Co Ltd
Current assignee: FUJIAN JUNHAO ELECTRONICS Co Ltd
Priority date: 2013-05-11
Filing date: 2013-05-11
Publication date: 2013-10-02
Anticipated expiration: 2023-05-11

Abstract

The utility model relates to an automobile direct-current arc failure detector. Currents pass through a direct-current sensor which collects signal sources in different periods of starting, running and shutting down of an automobile, then are followed by a voltage follower, then are sent to a signal amplifier for inside amplification, then are sent to an A/D data converter, and finally are transmitted to a central processor. Output signals collected and judged by the central processor are sent to a GPRS module, output signals of the GPRS module are sent to an automobile display screen. The automobile display screen is used for displaying failure state information, direct-current failed arcs can be effectively detected, and arc fire accidents are avoided.

Description

Car direct current arc failure detector

Technical field

The utility model relates to a kind of detector, particularly be a kind of car direct current arc failure detector.

Background technology

Along with China's rapid development of economy, particularly be subjected to financial crisis to influence country to support and the encouragement of automobile industry from the beginning of this year, successively put into effect some preferential policies and facilities for the convenience of the people, made more automobile (small passenger car) come into family, the quantity of China's automobile is significantly risen; But the thing followed is the number that rises of automobile fire also constantly to rise, and loss and personal casualty that it causes also grow with each passing day, and become a very important pith of current fire-fighting work.

Chengdu, Sichuan Province Bus Group north star ancillary firm 6.5 bus fire cause dead 74 people of 27 people injured; Yinchuan City's automobile fire in May takes place again and again, in less than one month time, has 13 automobiles and catches fire.Especially be the multiple phase of automobile fire winter, so people should take effective measures, improves prevention and control and adaptibility to response, and the generation of prevention automobile fire reduces the loss that automobile fire causes.

The external data of vehicle fire overview show that vehicle fire has become an importance of fire damage both at home and abroad.2009, in 1 348 500 fire of the U.S., vehicle fire had 219 000, accounts for 16% of whole fire, and dead 280 people hinder 1 610 people, cause 1,400,000,000 dollars property damage.City public security fire-fighting detachment yesterday, statistics showed: from May 1st, 2012 to yesterday, 75 of 40 day time Shenzhen joint automobile fire alerts reach 1.8 of average every days.The fire department prompting, in general, Shenzhen enters the multiple season that be automobile fire May to September.

Automobile fire is many-sided, and from the state that takes place, a kind of is the motoring condition presence of fire, as clash on fire, mechanical friction is on fire, fault is on fire, oil path failure is on fire, careless etc. with fire; A kind of is that quiescence such as vehicle are parked in garage, parking lot or highway etc., when cleaning vehicle or part when abuse, maintenance violating the regulations with fiery, set on fire etc.With regard to chaufeur, operate against regulations and make storage battery generation electric arc initiation fire.The automotive battery current capacity is very big, generally all at 180 amperes/hour.When navigating mate maintains operation to vehicle at ordinary times; seek conveniently; only wash outward appearance or check tire, water tank and so on; whether seldom storage battery wiring, contact are carried out maintenance protection, it is loosening seldom to watch contact at ordinary times, and whether the wiring insulation is damaged aging; in case contact is loosening or the wiring damage in insulation is aging; because automobile bumpiness is easy to cause the sparking that is short-circuited of wiring and wiring, wiring and car body, or the contact sparking that is short-circuited of beating also might cause fire in travelling.In addition, automobile is runed for a long time, and electric wiring on the car (especially high-voltage electrical apparatus circuit) and the aging of insulation of electrical equipment are fast, very easily cause electric leakage, short circuit, until presence of fire; The vehicle vibrations of travelling are bigger, and the joint between electric wiring and the electrical equipment is easy to become flexible, and causes bad contact, produces electro spark, and bad contact is with presence of fire for a long time; Vehicle is when maintenance, and the maintainer is finished the work perfunctorily, misoperation, and the people exposes and electrical equipment malfunction for causing electric wiring, and phase line short circuit, overload take place, and produces the high heat of high temperature, causes that electric wiring or electrical equipment catch fire.

The utility model content

The purpose of this utility model is to overcome above-mentioned deficiency, and a kind of car direct current arc failure detector is provided.

The technical scheme that its technical matters that solves the utility model adopts is: car direct current arc failure detector, pass direct current transducer by the automotive interior battery, described direct current transducer is gathered automobile at the signal source that starts, travels, stops flame-out different times, after voltage follower is followed, be transported to signal amplifier again behind its inner amplification, be transferred to the A/D data transducer, be sent to central process unit at last, the output signal after described central process unit collection and the judgement sends to the GPRS module.

The built-in compound arc data bank of described central process unit is set up direct current fault electric arc data bank after this compound arc data bank process analogue computing and the waveform data collection.

The output signal of described GPRS module sends to the automobile read-out.

By adopting above-mentioned technical scheme, the beneficial effects of the utility model are: the utility model is accepted and believed automobile at the signal source of different times such as starting, travel, stop when flame-out by direct current instrument transformer, after handling, signal is transferred to central process unit, be transferred to the GPRS module by central process unit and show fault status information, can detect the direct current fault electric arc effectively, prevent the generation of electric arc fire.

Description of drawings

Fig. 1 is frame structure scheme drawing of the present utility model.

The specific embodiment

Further specify the utility model below in conjunction with the drawings and specific embodiments.

As shown in Figure 1, car direct current arc failure detector of the present utility model, pass direct current transducer by the automotive interior battery, described direct current transducer is gathered automobile at the signal source that starts, travels, stops flame-out different times, after voltage follower is followed, be transported to signal amplifier again behind its inner amplification, be transferred to the A/D data transducer, be sent to central process unit at last, the output signal after described central process unit collection and the judgement sends to the GPRS module.

The built-in compound arc data bank of described central process unit is set up direct current fault electric arc data bank after this compound arc data bank process analogue computing and the waveform data collection, and direct current fault electric arc waveform database and reckoning determining method.When the automotive interior cell load carries, accepting and believing automobile through direct current instrument transformer is starting, travel, the signal source of different times such as stop when flame-out, the direct current instrument transformer two ends produce a magnitude of voltage, behind voltage follower and signal amplifier voltage gain, after being transferred to the A/D data transducer again, pass to central process unit I/O end, after the central process unit collection and judging, its mode chart meets internal database, DC current is so the fault electric arc of 8 and above semiperiod takes place in the direct current fault electric arc in 1 s, central process unit is judged repeatedly send the driving signal in 5 s, reach the GPRS module through the RIDF module, through mobile service provider, reach the automobile read-out and show current fault status information.

Above-described only is a preferred embodiment of the present utility model, can not limit the scope that the utility model is implemented, and every equalization of doing according to the utility model claim changes and decorates, and all should still belong in the scope that the utility model contains.

Claims

1. car direct current arc failure detector, it is characterized in that: pass direct current transducer by the automotive interior battery, described direct current transducer is gathered automobile at the signal source that starts, travels, stops flame-out different times, after voltage follower is followed, be transported to signal amplifier again behind its inner amplification, be transferred to the A/D data transducer, be sent to central process unit at last, the output signal after described central process unit collection and the judgement sends to the GPRS module.

2. car direct current arc failure detector according to claim 1 is characterized in that: the built-in compound arc data bank of described central process unit, this compound arc data bank are set up direct current fault electric arc data bank after through analogue computing and waveform data collection.

3. car direct current arc failure detector according to claim 1 and 2, it is characterized in that: the output signal of described GPRS module sends to the automobile read-out.