CN103552525A - 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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- CN103552525A CN103552525A CN201310561170.2A CN201310561170A CN103552525A CN 103552525 A CN103552525 A CN 103552525A CN 201310561170 A CN201310561170 A CN 201310561170A CN 103552525 A CN103552525 A CN 103552525A
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- automobile
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- gasoline
- gasoline filter
- discharge structure
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- 239000003502 gasoline Substances 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000002184 metal Substances 0.000 claims abstract description 61
- 239000004020 conductor Substances 0.000 claims abstract description 30
- 238000009825 accumulation Methods 0.000 abstract description 12
- 230000008569 process Effects 0.000 abstract description 7
- 238000002485 combustion reaction Methods 0.000 abstract description 6
- 230000002269 spontaneous effect Effects 0.000 abstract description 6
- 230000001154 acute effect Effects 0.000 abstract 1
- 239000012634 fragment Substances 0.000 description 26
- 230000003068 static effect Effects 0.000 description 26
- 238000012546 transfer Methods 0.000 description 12
- 239000010761 intermediate fuel oil Substances 0.000 description 10
- 239000000446 fuel Substances 0.000 description 9
- 239000003921 oil Substances 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 239000002828 fuel tank Substances 0.000 description 5
- 240000002853 Nelumbo nucifera Species 0.000 description 4
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 4
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 4
- 239000000295 fuel oil Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000011241 protective layer Substances 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- -1 3-petrol feed pump Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
Images
Landscapes
- Elimination Of Static Electricity (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The invention provides an anti-electrostatic discharge structure for a gasoline filter of an automobile and a method. The structure comprises a metallic conductor which is respectively in electric contact with the gasoline filter and a metal automobile body of the automobile. In order to solve the problem that a large number of electrostatic charges generated by the high-speed acute friction between the gasoline and a conveying pipeline during a gasoline conveying process are accumulated on a metal device of the conveying pipeline, the invention provides the method for effectively preventing the local electrostatic charge accumulation and the forming of a big potential difference, so as to avoid the happening of automobile spontaneous combustion accidents.
Description
Technical field
The present invention relates to a kind of car gasoline filter anti-static discharge structure and method.
Background technology
At present, during self-burning of vehicle accident, there is report, conventionally industry thinks that causing the major cause of self-burning of vehicle accident is electric leakage, and during engine operation, the temperature of high-tension coil is very high, make the insulating barrier of high-voltage ignition conductive wire 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 driving engine, carburettor etc. leak that ignites, causes ignition.Yet some do not exist electric leakage problem automobile incidents of spontaneous combustion can occur yet, for this kind of situation, industry does not also work out reason place wherein at present.
Summary of the invention
The object of the present invention is to provide a kind of car gasoline filter anti-static discharge structure and method, another major reason for the automobile generation incidents of spontaneous combustion of finding, be that the violent fricative a large amount of static charges of high speed between fuel delivery process IFO intermediate fuel oil and transfer line are gathered in the problem on the metal device of transfer line, the means of taking effectively to prevent the accumulation of partial electrostatic lotus and forming large electric potential difference, avoid the generation of self-burning of vehicle accident.
For addressing the above problem, the invention provides a kind of car gasoline filter anti-static discharge structure, comprise respectively and form with gasoline intercepter and the metal body of automobile the metallic conductor electrically contacting.
Further, in said structure, described metallic conductor is metallic conduction band.
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, the two ends of the metallic conduction shell fragment of V-shape and described gasoline intercepter form and electrically contact, and the middle part of V-shape metallic conduction shell fragment is connected and forms with described metal body by a shell fragment fix screw and electrically contacts.
According to another side of the present invention, a kind of car gasoline filter anti-electrostatic-discharge method is provided, comprising:
One metallic conductor is electrically contacted with gasoline intercepter and the metal body formation of automobile respectively.
Further, in said method, described metallic conductor is metallic conduction band.
Further, in said method, described metallic conductor is metallic conduction shell fragment.
Further, in said method, when metallic conduction shell fragment that described metallic conductor is V-shape, a metallic conductor is formed to the step electrically contacting with the gasoline intercepter of automobile and metal body respectively and comprises:
The middle part of V-shape metallic conduction shell fragment is connected and is formed with described metal body by a shell fragment fix screw and electrically contact;
The two ends of V-shape metallic conduction shell fragment and the formation of described gasoline intercepter are electrically contacted.
Compared with prior art, the present invention is directed to another major reason of the automobile generation incidents of spontaneous combustion of discovery, be that the violent fricative a large amount of static charges of high speed between fuel delivery process IFO intermediate fuel oil and transfer line are gathered in the problem on the metal device of transfer line, by forming with gasoline intercepter and the metal body of automobile the metallic conductor electrically contacting respectively, allow gasoline intercepter and metal body become equipotentiality body, can form the means that effectively prevent the accumulation of partial electrostatic lotus and form large electric potential difference, avoid the generation of self-burning of vehicle accident.
Accompanying drawing explanation
Fig. 1 is the car gasoline filter anti-static discharge structure figure of the employing metallic conduction band of one embodiment of the invention;
Fig. 2 is the car gasoline filter anti-static discharge structure 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-metallic conduction band, 11-metallic conduction shell fragment, 12-shell fragment fix screw, 13-fil fixing hoop screw.
The specific embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Embodiment mono-
As shown in Figure 1, the invention provides a kind of car gasoline filter anti-static discharge structure, comprise respectively and form with gasoline intercepter 6 and the metal body 1 of automobile the metallic conductor electrically contacting.Concrete, at present automobile especially before the fil of manned vehicle after oil pipe 4, fil oil pipe 7 and fuel tank 2 generally adopt non-metallic material to make.Thereby vehicle rocks in exercising and causes the friction of fuel oil and fuel tank 2 to produce static charge, the violent friction of high speed between course of conveying IFO intermediate fuel oil and transfer line more can cause producing a large amount of static charges, and these static charges are attached on fuel molecule and in pipeline, flow together.During fuel delivery, above-mentioned static charge is very easily gathered on the metal device of transfer line as gasoline intercepter 6 etc.; If these metal devices are not electrically connected to 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, forms jumper spark, and this is very unsafe for gasoline-fueled vehicle.From the whole path of fuel delivery, observe, in conveying, open top, in fuel tank 2 designs, to how to avoid static charge accumulation in use procedure and discharge, generally there are comparison effective measures, for example petrol feed pump 3 is used electric conductor to be connected with metal body 1, make fuel tank and metal body become equipotentiality body, thereby avoided electric charge local accumulation and electric discharge; End in fuel delivery, although driving engine 9 cylinder bodies and spraying nipple etc. are also metal pieces, and all there is good being electrically connected to metal body 1, but the static charge pouring in can cause the potential change of driving engine 9 cylinder bodies, to sensitive electrical devices, for example sensor signal causes interference, so be also necessary that the static charge to producing in fuel oil transmission path suppresses; But for how effectively to control static charge accumulation in fuel delivery process and discharge, generally lack enough understanding in vehicle design at present.Although be in particular in the making of the local use metallic material of gasoline intercepter 6, do not realize good conductive with metal body 1 and contact, make gasoline intercepter 6 become on the contrary a potential static charge and discharge outlet; If there is a little seepage in the joint of fil two ends and pipeline, very easily by electrostatic spark, lighted, form detonation, cause the car accident of burning.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, below compartment, also applied insulative water-proof protective layer 8 at the bottom of thick car, plastics clip 5 and insulative water-proof protective layer 8 make gasoline intercepter 6 and 1 of metal body cannot form excellent electric contact simultaneously.
There are three kinds of approach can make an entity accumulate static charge: to rub, induct and electric charge transfer.Two kinds of different material entities contacts or after friction, charge accumulated has reached balance.Then they are separated, the quantity of electric charge now retaining on single entity depends on the electric conductivity on material or surface.Surface electrical resistance is larger, just fewer by the electric charge of last contact point neutralization.In this, be τ=RC with the time constant of discharge process, wherein, R is resistance, and C is electric capacity, and very fast when separated speed, so that its time t<< τ used, the electric charge neutralizing by last contact point just seldom.With two entities of the equivalent charges of different polarity, formed two utmost points of electric capacity, distance is larger, and electric capacity is less, and according to formula U=Q/C, the difference of potential between two entities is larger, and wherein, U is voltage, and Q is electric weight, and C is electric capacity.In some situation, if when difference of potential reaches air breakdown voltage EBD ≈ 30kV/cm, will there is disruptive spark electric discharge.The intuitivism apprehension of electrostatic discharge is exactly the neutralization of positive and negative charge and at two, has the flow of charge producing 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 large electric potential difference, just can avoid the generation of 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, allow gasoline intercepter and vehicle body become equipotentiality body, vehicle body is shifted to storage pool as static charge, utilize the large surface of vehicle body metal to disperse to store static charge, avoid forming large electric potential difference, thereby avoid the generation of static discharge phenomenon.
Avoid the local accumulation of electric charge and form large electric potential difference, feasible method is that electric charge is transferred on larger surface or neutralized by be allowed positive and negative charge by rational path as early as possible.
As shown in Figure 1, described metallic conductor is conductive strips to an implementation.Utilize metallic conduction band 10 as electric conductor, between positive and negative charge gathers a little, to set up the passage that electric charge shifts and neutralizes, between gasoline intercepter and vehicle body, set up a charge transferring channel.Avoid local accumulation on the one hand, can allow on the other hand positive and negative charge be neutralized.
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, the two ends of the metallic conduction shell fragment 11 of V-shape and described gasoline intercepter 6 forms and electrically contacts, and the middle part of V-shape metallic conduction shell fragment 11 is connected and forms with described metal body by a shell fragment fix screw 12 and electrically contacts.By increasing an elastic conduction shell fragment 11, electrically contact with the metal surface formation of gasoline intercepter 6, elastic conduction shell fragment is fixed on metal body 1 by metallic screw 12, forms like this flow passage of a static charge from gasoline intercepter to metal body.
To sum up, the present embodiment is for another major reason of the automobile generation incidents of spontaneous combustion of finding, be that the violent fricative a large amount of static charges of high speed between fuel delivery process IFO intermediate fuel oil and transfer line are gathered in the problem on the metal device of transfer line, using gasoline intercepter as pipeline static charge catcher, using the transfer storage pool of metal body as gasoline intercepter institute accumulate static charge, with metallic conductor, between gasoline intercepter and vehicle body, set up static charge transfering channel, effectively prevent the accumulation of partial electrostatic lotus and form large electric potential difference, avoid the generation of self-burning of vehicle accident.
Embodiment bis-
The present invention also provides another kind of car gasoline filter anti-electrostatic-discharge method, comprising:
One metallic conductor is electrically contacted with gasoline intercepter and the metal body formation of automobile respectively.
Optionally, described metallic conductor is metallic conduction band.
Optionally, described metallic conductor is metallic conduction shell fragment.
Preferably, when metallic conduction shell fragment that described metallic conductor is V-shape, a metallic conductor is formed to the step electrically contacting with the gasoline intercepter of automobile and metal body respectively and comprises:
The middle part of V-shape metallic conduction shell fragment is connected and is formed with described metal body by a shell fragment fix screw and electrically contact;
The two ends of V-shape metallic conduction shell fragment and the formation of described gasoline intercepter are electrically contacted.
Other detailed content of embodiment bis-specifically can, referring to the appropriate section of embodiment mono-, 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, be that the violent fricative a large amount of static charges of high speed between fuel delivery process IFO intermediate fuel oil and transfer line are gathered in the problem on the metal device of transfer line, by forming with gasoline intercepter and the metal body of automobile the metallic conductor electrically contacting respectively, can form the means that effectively prevent the accumulation of partial electrostatic lotus and form 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 each embodiment stresses is the difference with other embodiment, between each embodiment identical similar part mutually referring to.For the disclosed system of embodiment, owing to corresponding to the method disclosed in Example, so description is fairly simple, relevant part partly illustrates referring to method.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these change and modification.
Claims (8)
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 true CN103552525A (en) | 2014-02-05 |
| CN103552525B CN103552525B (en) | 2015-07-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11130083B2 (en) | 2015-01-26 | 2021-09-28 | Ford Global Technologies, Llc | Fuel filter |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5164084A (en) * | 1990-08-30 | 1992-11-17 | 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 |
| CN1486399A (en) * | 2001-12-12 | 2004-03-31 | ������������ʽ���� | Fuel supply device |
| 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 |
-
2013
- 2013-11-12 CN CN201310561170.2A patent/CN103552525B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5164084A (en) * | 1990-08-30 | 1992-11-17 | Allied-Signal Inc. | Electrostatically dissipative fuel filter |
| US5164084B1 (en) * | 1990-08-30 | 1995-03-28 | Allied Signal Inc | Electrostatically dissipative fuel filter |
| US5164084B2 (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 |
| CN1486399A (en) * | 2001-12-12 | 2004-03-31 | ������������ʽ���� | Fuel supply device |
| 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11130083B2 (en) | 2015-01-26 | 2021-09-28 | Ford Global Technologies, Llc | Fuel filter |
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| CN103552525B (en) | 2015-07-29 |
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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 |