CN202344116U - Connecting structure for metal fuel tank line opening of automobile - Google Patents
Connecting structure for metal fuel tank line opening of automobile Download PDFInfo
- Publication number
- CN202344116U CN202344116U CN2011203732342U CN201120373234U CN202344116U CN 202344116 U CN202344116 U CN 202344116U CN 2011203732342 U CN2011203732342 U CN 2011203732342U CN 201120373234 U CN201120373234 U CN 201120373234U CN 202344116 U CN202344116 U CN 202344116U
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- Prior art keywords
- fuel tank
- mouth
- pipe
- welding
- line opening
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- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The utility model relates to a connecting structure of a fuel tank of an automobile, in particular to a connecting structure for a metal fuel tank line opening of an automobile, comprising a fuel tank body (1) and a line opening (2) arranged outside the fuel tank body (1) and communicated with the inside of the fuel tank body (1), wherein the line opening (2) is connected with the fuel tank body (1) in a projection welding way by a joint edge (4) of a convex area (3) arranged at the bottom of the line opening (2) and provided with lower bulges surrounding the line opening (2). By adopting the technical scheme, the joint edge of the convex area is additionally arranged on a fuel inlet pipe opening or exhaust pipe opening, and the fuel inlet pipe opening or exhaust pipe opening is connected with the fuel tank body in a projection welding way through the joint edge, thus, not only is the production efficiency high, but also no split-flow influence is caused; and the projection welding is finished instantaneously, therefore, the heat affected zone is small, and the condition that a product erosion resistant coating is damaged because of being under high temperature for a long term in the welding process is prevented.
Description
Technical field
The utility model relates to a kind of automotive oil tank syndeton, relates in particular to a kind of automobile metal fuel tank mouth of pipe syndeton.
Background technology
The automobile metal fuel tank is the critical component of automobile oil supply system, has storage and supplies with the function of fuel oil to engine, is made up of fuel oil casing, the oil-feed mouth of pipe, exhaust pipe mouth, oil pump, spoiler, safety valve and pipeline etc.The fuel oil casing is connected with filling conduit through the oil-feed mouth of pipe, is connected with exhaust manifold through exhaust pipe mouth, realizes the function of fuel up.Fuel tank belongs to state compulsion safety certification product, and fuel tank product and any connecting portion all have the requirement of sealing, intensity and corrosion resistance, and each connecting portion of metal fuel tank extensively adopts welding method.The fuel oil casing is connected intensity and the sealing that the same needs in back guarantee the junction with the oil-feed mouth of pipe, exhaust pipe mouth; Method of attachment also is welding; The welding method that adopts at present mainly contains two kinds: arc-welding welding (comprising argon arc welding and carbon dioxide gas arc welding) and copper brazing welding; When concrete welded and installed; On the fuel oil casing, offer be communicated with its cavity, with the corresponding installing hole of the oil-feed mouth of pipe or exhaust pipe mouth size; The oil-feed mouth of pipe or exhaust pipe mouth with straight tube-like is inserted in the corresponding installing hole then, welds in the hole wall junction of the oil-feed mouth of pipe or exhaust pipe mouth and installing hole, to realize being fixedly connected of the oil-feed mouth of pipe or exhaust pipe mouth and fuel oil casing.Because the lightweight requirements of automobile in design; Automobile metal oil tank fuel casing below 100 liter capacities generally adopts thickness 1.0mm to process with lower steel plate; Belong to thin plate, and filler neck is owing to being connected, so mostly its structure is revolving body cast spare with in-line.For guaranteeing the antiseptic property of fuel oil casing, be employed in fuel tank surface applying coating, as adopting plating zinc on surface plate or other coated plate processing oil box body more; The oil-feed mouth of pipe and exhaust pipe mouth then need before weldering, and be zinc-plated or be coated with other anticorrosion oil resistant coating at piece surface, because welding temperature is higher than the fusing point of coating material far away when arc-welding or soldering; And weld interval is long, and the heat-affected zone is big, is enough near the surface anticorrosion layer in scorification weld zone; And can't repair; Cause the local antiseptic property forfeiture of metal fuel tank, and arc-welding and method for welding all can produce volume of smoke in welding process, environmental pollution is serious; Must dispose smoke evacuation dirt system and appliances for labor protection, will certainly cause like this threat of employee's occupational health and increasing of manufacturing cost.In addition, arc-welding and soldering efficient are low, receive the influence of employee's operative skill bigger, and welding back welding bead air-tightness disqualification rate is high, on average about 20%, reprocesses the cost height, and the easy through welding of arc-welding thin plate, and 2% scrappage is on average arranged.
The utility model content
For solving the deficiency that exists in the prior art; The utility model provides a kind of automobile metal fuel tank mouth of pipe syndeton that prevents the coating damage and cause the product Corrosion Protection to reduce; When enhancing productivity, reduce the failure welding rate, avoided severe contamination to environment.
For realizing above-mentioned purpose; The automobile metal fuel tank mouth of pipe syndeton of the utility model; Comprise the fuel oil casing; Be arranged on fuel tank external, with the mouth of pipe of fuel oil casing internal communication, the mouth of pipe is connected through projection welding with the fuel oil casing through being arranged on the mouth of pipe applying limit bottom, that have around convexity band protruding under the mouth of pipe.
As the qualification to aforesaid way, the cross sectional shape of described protruding band is a del.
As the qualification to the utility model, the described mouth of pipe is the oil-feed mouth of pipe and exhaust pipe mouth.
Adopt technique scheme; Owing on the oil-feed mouth of pipe or exhaust pipe mouth, set up the applying limit that has protruding band, make the oil-feed mouth of pipe or exhaust pipe mouth carry out projection welding and be connected through this applying limit and fuel oil casing, not only productivity ratio is high; And there is not a shunt influence; And because projection welding welding moment completion, the heat affected area is little, has prevented the damage of product anticorrosive coat under long-time high temperature in the welding process; Especially the cross sectional shape of the convexity band on the applying limit is set to del; In welding process; Make contact resistance big, welding moment heat production is big, is prone to realize welding; It is 50% of U-shaped heat demand that the welding heat demand of this structure is merely cross sectional shape under the same conditions, further prevents product anticorrosive coat damage at high temperature in the welding process.
Description of drawings
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is done further to specify:
Fig. 1 is the partial structurtes sketch map of the utility model;
Fig. 2 is structure shown in Figure 1 structural representation when installment state;
Fig. 3 is the local structure for amplifying sketch map of I portion among Fig. 2.
Among the figure: 1, fuel oil casing; 2, the mouth of pipe; 3, protruding band; 4, applying limit; 5, top electrode; 6, bottom electrode; 7, alignment pin; 8, fuel feed hole.
The specific embodiment
By shown in Figure 1; The automobile metal fuel tank mouth of pipe syndeton of the utility model; Comprise fuel oil casing 1, be arranged on fuel oil casing 1 outer, with the mouth of pipe 2 of fuel oil casing 1 internal communication, the bottom of the mouth of pipe 2 is provided with around the applying mouth of pipe, that turn up limit 4; The mouth of pipe 2 is connected through the projection welding welding of applying limit 4 with fuel oil casing 1, and this mouth of pipe 2 can be the oil-feed mouth of pipe or exhaust pipe mouth.
When it is installed, be example with the oil-feed mouth of pipe, by shown in Figure 2, before the projection welding welding, applying limit 4 has the following protruding convexity of an annular and is with 3, and by can clearly finding out among Fig. 3, this convexity is a del with 3 cross sectional shape.In the fuel feed hole of fuel oil casing 18 and the oil-feed mouth of pipe, insert an alignment pin 7; The internal diameter of the aperture of the external diameter of this alignment pin 7 and fuel feed hole 8 and the oil-feed mouth of pipe is corresponding; Realize the location of the welding position of the oil-feed mouth of pipe on fuel oil casing 1; Above applying limit 4, add top electrode 5, in the fuel oil casing 1 of fuel feed hole 8 peripheries, add bottom electrode 6, top electrode 5, bottom electrode 6 are applied simultaneously the pressure F of vertical direction through external force; The projection welding welding is carried out on fuel oil casing 1 and applying limit 4, finally formed syndeton shown in Figure 1.
Claims (3)
1. automobile metal fuel tank mouth of pipe syndeton; Comprise fuel oil casing (1); Be arranged on fuel oil casing (1) outer, with the mouth of pipe (2) of fuel oil casing (1) internal communication, it is characterized in that: the described mouth of pipe (2) is connected through projection welding with fuel oil casing (1) through being arranged on applying limit (4) mouth of pipe (2) bottom, that have around the following protruding convexity band (3) of the mouth of pipe (2).
2. automobile metal fuel tank mouth of pipe syndeton according to claim 1 is characterized in that: the cross sectional shape of described protruding band (3) is a del.
3. automobile metal fuel tank mouth of pipe syndeton according to claim 1 and 2 is characterized in that: the described mouth of pipe (2) is the oil-feed mouth of pipe and exhaust pipe mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203732342U CN202344116U (en) | 2011-09-30 | 2011-09-30 | Connecting structure for metal fuel tank line opening of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203732342U CN202344116U (en) | 2011-09-30 | 2011-09-30 | Connecting structure for metal fuel tank line opening of automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202344116U true CN202344116U (en) | 2012-07-25 |
Family
ID=46533146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203732342U Expired - Lifetime CN202344116U (en) | 2011-09-30 | 2011-09-30 | Connecting structure for metal fuel tank line opening of automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202344116U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103017849A (en) * | 2012-11-28 | 2013-04-03 | 荣成市宇翔实业有限公司 | Upper meter casing component of gas meter |
| CN103521904A (en) * | 2013-10-10 | 2014-01-22 | 大连三洋压缩机有限公司 | Resistance welding method |
| CN104870136B (en) * | 2012-12-21 | 2017-05-10 | 株式会社鹭宫制作所 | Weld structure for refrigerant circuit component and welding method for refrigerant circuit component |
-
2011
- 2011-09-30 CN CN2011203732342U patent/CN202344116U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103017849A (en) * | 2012-11-28 | 2013-04-03 | 荣成市宇翔实业有限公司 | Upper meter casing component of gas meter |
| CN104870136B (en) * | 2012-12-21 | 2017-05-10 | 株式会社鹭宫制作所 | Weld structure for refrigerant circuit component and welding method for refrigerant circuit component |
| US10118244B2 (en) | 2012-12-21 | 2018-11-06 | Kabushiki Kaisha Saginomiya Seisakusho | Weld structure for refrigerant circuit component and welding method for refrigerant circuit component |
| CN103521904A (en) * | 2013-10-10 | 2014-01-22 | 大连三洋压缩机有限公司 | Resistance welding method |
| CN103521904B (en) * | 2013-10-10 | 2015-11-18 | 松下压缩机(大连)有限公司 | A kind of method for resistance welding |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120725 |
|
| CX01 | Expiry of patent term |