CN103552525B - Anti-electrostatic discharge structure for gasoline filter of automobile and method - Google Patents
Anti-electrostatic discharge structure for gasoline filter of automobile and method Download PDFInfo
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- CN103552525B CN103552525B CN201310561170.2A CN201310561170A CN103552525B CN 103552525 B CN103552525 B CN 103552525B CN 201310561170 A CN201310561170 A CN 201310561170A CN 103552525 B CN103552525 B CN 103552525B
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Abstract
The invention provides a kind of Anti-electrostatic discharge structure for gasoline filter of automobile and method, described structure comprises and forms the metallic conductor of electrical contact with the gasoline intercepter of automobile and metal body respectively.The problem of a large amount of static charge buildup on the metal device of transfer line that the present invention can produce for the high speed severe friction between fuel delivery process IFO intermediate fuel oil and transfer line, there is provided and effectively prevent partial electrostatic lotus from accumulating and form the means of large electric potential difference, avoid the generation of self-burning of vehicle accident.
Description
Technical field
The present invention relates to a kind of Anti-electrostatic discharge structure for gasoline filter of automobile and method.
Background technology
At present, report is had during self-burning of vehicle accident, usual industry think cause the major cause of self-burning of vehicle accident be electric leakage, namely during engine operation, the temperature of high-tension coil is very high, make that the insulating barrier of high-voltage ignition conductive wire is softening, aging, rhegma, igniting high-tension current easily punctures insulating barrier, easily produces high-tension current electric leakage, causes electric leakage place temperature and constantly raises, the gasoline that ignition engines, carburettor etc. leak, causes ignition.But some do not exist electrical leakage problems automobile also incidents of spontaneous combustion can occur, for this kind of situation, current industry does not also work out reason place wherein.
Summary of the invention
The object of the present invention is to provide a kind of Anti-electrostatic discharge structure for gasoline filter of automobile and method, for another major reason of the automobile generation incidents of spontaneous combustion found, namely the problem of a large amount of static charge buildup on the metal device of transfer line that the high speed severe friction between fuel delivery process IFO intermediate fuel oil and transfer line produces, take effectively prevent partial electrostatic lotus from accumulating and form the means of large electric potential difference, avoid the generation of self-burning of vehicle accident.
For solving the problem, the invention provides a kind of Anti-electrostatic discharge structure for gasoline filter of automobile, comprising and forming the metallic conductor of electrical contact with the gasoline intercepter of automobile and metal body respectively.
Further, in said structure, described metallic conductor is metal conductor tracks.
Further, in said structure, described metallic conductor is metallic conduction shell fragment.
Further, in said structure, described metallic conduction shell fragment is V-shape, wherein, two ends and the described gasoline intercepter of the metallic conduction shell fragment of V-shape form electrical contact, and the middle part of V-shape metallic conduction shell fragment to be connected with described metal body by a shell fragment fix screw and to form electrical contact.
According to another side of the present invention, a kind of car gasoline filter anti-electrostatic-discharge method is provided, comprises:
One metallic conductor is formed electrical contact with the gasoline intercepter of automobile and metal body respectively.
Further, in the above-mentioned methods, described metallic conductor is metal conductor tracks.
Further, in the above-mentioned methods, described metallic conductor is metallic conduction shell fragment.
Further, in the above-mentioned methods, when described metallic conductor is the metallic conduction shell fragment of V-shape, the step that a metallic conductor forms electrical contact with the gasoline intercepter of automobile and metal body is respectively comprised:
The middle part of V-shape metallic conduction shell fragment to be connected with described metal body by a shell fragment fix screw and to form electrical contact;
The two ends of V-shape metallic conduction shell fragment and described gasoline intercepter are formed electrical contact.
Compared with prior art, the present invention is directed to another major reason of the automobile generation incidents of spontaneous combustion of discovery, namely the problem of a large amount of static charge buildup on the metal device of transfer line that the high speed severe friction between fuel delivery process IFO intermediate fuel oil and transfer line produces, by forming the metallic conductor of electrical contact with the gasoline intercepter of automobile and metal body respectively, gasoline intercepter and metal body is allowed to become equipotentiality body, can be formed and effectively prevent partial electrostatic lotus from accumulating and form the means of large electric potential difference, avoid the generation of self-burning of vehicle accident.
Accompanying drawing explanation
Fig. 1 is the Anti-electrostatic discharge structure for gasoline filter of automobile figure of the employing metal conductor tracks of one embodiment of the invention;
Fig. 2 is the Anti-electrostatic discharge structure for gasoline filter of automobile figure of the employing metallic conduction shell fragment of one embodiment of the invention;
Wherein, 1-metal body, 2-fuel tank, 3-petrol feed pump, oil pipe before 4-fil, 5-fil fixing hoop, 6-gasoline intercepter, oil pipe after 7-fil, insulative water-proof protective layer at the bottom of 8-car, 9-driving engine, 10-metal conductor tracks, 11-metallic conduction shell fragment, 12-shell fragment fix screw, 13-fil fixing hoop screw.
Detailed description of the invention
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, and below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Embodiment one
As shown in Figure 1, the invention provides a kind of Anti-electrostatic discharge structure for gasoline filter of automobile, comprise and form the metallic conductor of electrical contact with the gasoline intercepter 6 of automobile and metal body 1 respectively.Concrete, before the fil of current automobile especially manned vehicle, after oil pipe 4, fil, oil pipe 7 and fuel tank 2 generally adopt non-metallic material to make.Rock the friction causing fuel oil and fuel tank 2 in vehicle enforcement thus produce static charge, high speed severe friction between course of conveying IFO intermediate fuel oil and transfer line more can cause producing a large amount of static charge, and these static charges are attached on fuel molecule and flow in pipeline together.During fuel delivery, as gasoline intercepter 6 etc. on the metal device that above-mentioned static charge is very easily gathered in transfer line; If these metal devices are not electrically connected with metal body 1, do not form equipotentiality body, the static charge of a large amount of accumulation will cause occurring static discharge phenomenon between above-mentioned metal parts and vehicle body, and form jumper spark, this is very unsafe for gasoline-fueled vehicle.Observe from the whole path of fuel delivery, top is opened in conveying, effective measures are compared to how avoiding static charge accumulation and electric discharge generally to have in use procedure during fuel tank 2 designs, such as petrol feed pump 3 uses electric conductor to be connected with metal body 1, make fuel tank and metal body become equipotentiality body, thus avoid electric charge local accumulation and electric discharge; At the end of fuel delivery, although driving engine 9 cylinder body and spraying nipple etc. are also metal pieces, and all have good electrical connection with metal body 1, but the static charge poured in can cause the potential change of driving engine 9 cylinder body, to sensitive electrical devices, such as sensor signal causes interference, so be also necessary that the static charge to producing in fuel delivery path suppresses; But generally lack enough understanding for how effectively to control static charge accumulation in fuel delivery process and discharge in Car design at present.Although be in particular in that gasoline intercepter 6 local uses metallic material to make, do not realize good conductive with metal body 1 and contact, make gasoline intercepter 6 become a potential static charge on the contrary and discharge and export; If a little seepage appears in the joint of fil two ends and pipeline, then very easily lighted by electrostatic spark, form detonation, cause and burn car accident.Cause gasoline intercepter 6 and metal body 1 cannot keep the reason of excellent electric contact to be: for preventing corrosion, the multiplex plastics clip 5 of gasoline intercepter 6 is fixed on below compartment, also be coated with insulative water-proof protective layer 8 at the bottom of thick car below compartment, plastics clip 5 and insulative water-proof protective layer 8 make cannot form excellent electric contact between gasoline intercepter 6 and metal body 1 simultaneously.
There are three kinds of approach that an entity can be made to have accumulated static charge: to rub, induct and Charger transfer.Two kinds of different material entities contacts or after friction, charge accumulated reaches balance.Then they separated, the quantity of electric charge now single entity retained depends on the electric conductivity on material or surface.Surface electrical resistance is larger, fewer by the electric charge of last contact point neutralization.In this and the time constant of discharge process be τ=RC, wherein, R is resistance, and C is electric capacity, and when the speed be separated is very fast, so that its time t<< τ used, the electric charge neutralized by last contact point is just seldom.Two entities with the equivalent charges of different polarity constitute two poles of electric capacity, and distance is larger, and electric capacity is less, larger according to the difference of potential of formula U=Q/C then between two entities, and wherein, U is voltage, and Q is electricity, and C is electric capacity.In some cases, if when difference of potential reaches air puncture voltage EBD ≈ 30kV/cm, disruptive spark electric discharge will be there is.The intuitivism apprehension of electrostatic discharge is exactly the neutralization of positive and negative charge and there is at two the flow of charge produced between the carrier of electric potential difference thus.Fuel oil is flow at high speed in oil pipe, produces static charge inevitable, by avoiding charge accumulated and forming the generation that large electric potential difference just can avoid electrostatic discharge.In order to overcome the problem of static charge local accumulation on gasoline intercepter, the present invention by setting up static charge transfering channel with conductive strips or metallic conduction shell fragment between metal vapour oil rectifier and metal body, gasoline intercepter and vehicle body is allowed to become equipotentiality body, vehicle body is shifted storage pool as static charge, the large Dispersion on surface of vehicle body metal is utilized to store static charge, avoid the formation of large electric potential difference, thus avoid the generation of static discharge phenomenon.
Avoid the local accumulation of electric charge and form large electric potential difference, feasible method electric charge is transferred on larger surface by rational path as early as possible or allows positive and negative charge neutralize.
As shown in Figure 1, described metallic conductor is conductive strips to an implementation.Utilize metal conductor tracks 10 as electric conductor set up between positive and negative charge gathers some Charger transfer and in and passage, between gasoline intercepter and vehicle body, set up a charge transferring channel.Avoid local accumulation on the one hand, positive and negative charge can be allowed to be neutralized on the other hand.
As shown in Figure 2, described metallic conductor is metallic conduction shell fragment to another implementation.Preferably, metallic conduction shell fragment 11 is V-shape, wherein, two ends and the described gasoline intercepter 6 of the metallic conduction shell fragment 11 of V-shape form electrical contact, and the middle part of V-shape metallic conduction shell fragment 11 to be connected with described metal body by a shell fragment fix screw 12 and to form electrical contact.By increasing an elastic conduction shell fragment 11, form electrical contact with the metal surface of gasoline intercepter 6, elastic conduction shell fragment is fixed on metal body 1 by metallic screw 12, forms the flow passage of a static charge from gasoline intercepter to metal body like this.
To sum up, the present embodiment is for another major reason of the automobile generation incidents of spontaneous combustion found, namely the problem of a large amount of static charge buildup on the metal device of transfer line that the high speed severe friction between fuel delivery process IFO intermediate fuel oil and transfer line produces, using gasoline intercepter as pipeline static charge catcher, the transfer storage pool of institute's accumulate static charge using metal body as gasoline intercepter, between gasoline intercepter and vehicle body, static charge transfering channel is set up with metallic conductor, effectively prevent partial electrostatic lotus from accumulating and forming large electric potential difference, avoid the generation of self-burning of vehicle accident.
Embodiment two
The present invention also provides another kind of car gasoline filter anti-electrostatic-discharge method, comprising:
One metallic conductor is formed electrical contact with the gasoline intercepter of automobile and metal body respectively.
Optionally, described metallic conductor is metal conductor tracks.
Optionally, described metallic conductor is metallic conduction shell fragment.
Preferably, when described metallic conductor is the metallic conduction shell fragment of V-shape, the step that a metallic conductor forms electrical contact with the gasoline intercepter of automobile and metal body is respectively comprised:
The middle part of V-shape metallic conduction shell fragment to be connected with described metal body by a shell fragment fix screw and to form electrical contact;
The two ends of V-shape metallic conduction shell fragment and described gasoline intercepter are formed electrical contact.
Other detailed content of embodiment two specifically see the appropriate section of embodiment one, can not repeat them here.
In sum, the present invention is directed to another major reason of the automobile generation incidents of spontaneous combustion of discovery, namely the problem of a large amount of static charge buildup on the metal device of transfer line that the high speed severe friction between fuel delivery process IFO intermediate fuel oil and transfer line produces, by forming the metallic conductor of electrical contact with the gasoline intercepter of automobile and metal body respectively, can be formed and effectively prevent partial electrostatic lotus from accumulating and form the means of large electric potential difference, avoid the generation of self-burning of vehicle accident.
In this specification sheets, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.For system disclosed in embodiment, owing to corresponding to the method disclosed in Example, so description is fairly simple, relevant part illustrates see method part.
Obviously, those skilled in the art can carry out various change and modification to invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (5)
1. an Anti-electrostatic discharge structure for gasoline filter of automobile, it is characterized in that, comprise and form the metallic conductor of electrical contact with the gasoline intercepter of automobile and metal body respectively, described metallic conductor is metallic conduction shell fragment, described metallic conduction shell fragment is V-shape, wherein, two ends and the described gasoline intercepter of the metallic conduction shell fragment of V-shape form electrical contact, and the middle part of V-shape metallic conduction shell fragment to be connected with described metal body by a shell fragment fix screw and to form electrical contact.
2. Anti-electrostatic discharge structure for gasoline filter of automobile as claimed in claim 1, it is characterized in that, described metallic conductor is metal conductor tracks.
3. a car gasoline filter anti-electrostatic-discharge method, is characterized in that, comprising:
One metallic conductor is formed electrical contact with the gasoline intercepter of automobile and metal body respectively;
When described metallic conductor is the metallic conduction shell fragment of V-shape, the step that a metallic conductor forms electrical contact with the gasoline intercepter of automobile and metal body is respectively comprised:
The middle part of V-shape metallic conduction shell fragment to be connected with described metal body by a shell fragment fix screw and to form electrical contact;
The two ends of V-shape metallic conduction shell fragment and described gasoline intercepter are formed electrical contact.
4. car gasoline filter anti-electrostatic-discharge method as claimed in claim 3, it is characterized in that, described metallic conductor is metal conductor tracks.
5. car gasoline filter anti-electrostatic-discharge method as claimed in claim 3, it is characterized in that, described metallic conductor is metallic conduction shell fragment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310561170.2A CN103552525B (en) | 2013-11-12 | 2013-11-12 | Anti-electrostatic discharge structure for gasoline filter of automobile and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310561170.2A CN103552525B (en) | 2013-11-12 | 2013-11-12 | Anti-electrostatic discharge structure for gasoline filter of automobile and method |
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| Publication Number | Publication Date |
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| CN103552525A CN103552525A (en) | 2014-02-05 |
| CN103552525B true CN103552525B (en) | 2015-07-29 |
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| CN201310561170.2A Active CN103552525B (en) | 2013-11-12 | 2013-11-12 | Anti-electrostatic discharge structure for gasoline filter of automobile and method |
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| US11130083B2 (en) | 2015-01-26 | 2021-09-28 | Ford Global Technologies, Llc | Fuel filter |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5076920B2 (en) * | 1990-08-30 | 1998-05-05 | Allied Signal Inc | Electrostatically dissipative fuel filter |
| US5769061A (en) * | 1996-04-01 | 1998-06-23 | Denso Corporation | Fuel supply system having a suction filter in a sub-tank |
| WO2003050407A1 (en) * | 2001-12-12 | 2003-06-19 | Mitsubishi Denki Kabushiki Kaisha | Fuel feeder |
| CN203637745U (en) * | 2013-11-12 | 2014-06-11 | 上海大众汽车有限公司 | Anti-static discharge structure for gasoline filter of automobile |
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Address after: 201102 Shanghai city Jiading District Anting Road No. 123 Patentee after: SAIC VOLKSWAGEN AUTOMOTIVE COMPANY LIMITED Address before: 201102 Shanghai city Jiading District Anting Road No. 123 Patentee before: Dazhang Automobile Co., Ltd., Shanghai |