CN208760419U - A kind of high pressure plastic fuel tank inner bin supporting element - Google Patents
A kind of high pressure plastic fuel tank inner bin supporting element Download PDFInfo
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- CN208760419U CN208760419U CN201821291647.4U CN201821291647U CN208760419U CN 208760419 U CN208760419 U CN 208760419U CN 201821291647 U CN201821291647 U CN 201821291647U CN 208760419 U CN208760419 U CN 208760419U
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Abstract
The utility model relates to a kind of high pressure plastic fuel tank inner bin supporting element, the supporting element includes the columns assemblies being used to support and the weld assembly for connecting with inner wall of oil tank, and the weld assembly is installed to columns assemblies by Automatic manual transmission；The technical solution realizes the detachable assembly of case supports bar, and molding is easy；The cross section of the technical solution case supports bar is set as Y shape, and occupancy is small in size, reduces the nominal volume loss of fuel tank；The technical solution assembly parts share, and increase the modularization and flexibility of design.
Description
Technical field
The present invention relates to a kind of supporting elements, and in particular to a kind of high pressure plastic fuel tank inner bin supporting element belongs to
In Oiltank structure component technology field.
Background technique
With popularizing for plug-in hybrid-power automobile, the high voltage performance of fuel tank is required higher and higher.When plug-in
Motor drive is used for a long time in hybrid vehicle, i.e., when engine does not work for a long time, fuel tank is sealed for a long time at this time, nothing
Method is exhausted.For fuel tank under conditions of day and night temperature and placement sealing for a long time, the accumulation of fuel-steam will be in fuel tank
Portion generates biggish pressure, and positive pressure can achieve about 35kPa, and negative pressure can achieve about -15kPa.Therefore it needs to develop to have
The fuel tank of high voltage performance is in hybrid vehicle fuel system.
The structure and performance of the high pressure resistant fuel tank of tradition are as follows: metallic oil tank can solve plug-in hybrid-power automobile fuel tank
High voltage bearing functional requirement, but the resistance to fuel oil corrosivity of metallic oil tank is poor, weight is big, and design freedom is low, does not adapt to vapour
The trend of vehicle lightweight and the automobile chassis space to become increasingly complex.
Generalling use in blow-molding process in plastic fuel tank field utilizes mold by the upper and lower surface partial zones of plastic parison
The mode that domain is press-connected reaches the high voltage bearing functional requirement of fuel tank.This kind of structure row is commonly called as in the industry KISS-OFF, but the knot
Structure bonding strength is lower, and largely sacrifices the nominal volume of fuel tank, and economy is poor.
With the maturation of plastic fuel tank built-in part mounting technique, it may be considered that pass through the placing box inside plastic fuel tank
The mode of body support rod increases the rigidity of plastic fuel tank, reaches the high voltage bearing performance of plastic fuel tank.But traditional plastics
Fuel tank supporting bar structure is complicated, and integral forming process requires height, and occupancy fuel tank internal volume is larger, is unable to generalization and sets
Meter cannot be well matched with the different fuel tank of height.Conventional fuel oil system has the following problems: 1) the high pressure resistant fuel tank of tradition is not
Foot；2) the resistance to fuel oil corrosivity of the high pressure resistant fuel tank of metal is poor, and weight is big, and design freedom is low；3) KISS-OFF plastic high voltage fuel tank
Bonding strength is low, influences on fuel tank nominal volume big；Traditional generalization of plastic fuel tank support rod and flexible design degree is poor.Cause
This, a kind of new scheme of urgent need solves the technical problem.
Summary of the invention
The present invention exactly for the technical problems in the prior art, provides inside a kind of high pressure plastic fuel tank
Case supports part, the Technical Design is ingenious, compact-sized, which realizes the detachable dress of case supports bar
Match, molding is easy；Technical solution case supports bar occupancy is small in size, reduces the nominal volume loss of fuel tank；The technical side
Case assembly parts share, and increase the modularization and flexibility of design.
To achieve the goals above, technical scheme is as follows, a kind of high pressure plastic fuel tank inner bin
Supporting element, which is characterized in that the supporting element includes the columns assemblies being used to support and the weldering for connecting with inner wall of oil tank
Connected components, the weld assembly are installed to column body assembly by Automatic manual transmission.
As an improvement of the present invention, the columns assemblies include column ontology and are arranged at column ontology both ends
End floor.Column ontology and end floor are by being integrally formed connection.
As an improvement of the present invention, the end of the end floor is provided with end claw.It is fixed for assembled
In the fitting groove of welding ontology.
As an improvement of the present invention, the column body cross-section is set as y-shaped cross-section, the end floor setting
For end Y shape floor.In addition to this, the end floor can also be designed to other shapes according to actual needs, mainly be
Erection welding component, and it is fixed on fuel tank internal.
As an improvement of the present invention, the root at column ontology both ends is provided with gap slot, the angle of the gap slot
Degree is 30 ° -60 °.Notch feature is designed in column ontology root, when fuel tank, which is in, the operating conditions such as falls, collides, column ontology
Stress concentration causes to be broken at root gap, and Impact energy can be absorbed, fuel tank is avoided to leak.Notch angle generally at 30 ° extremely
It is designed within the scope of 60 °, it is recommended to use 40 ° of Notch angle.Due to all being designed on the direction of column ontology y-shaped cross-section end three
Gap structure, the collision of any direction can form stress in indentation, there and concentrate, convenient for fracture, it is ensured that oil tank body is not
It is damaged.
As an improvement of the present invention, the weld assembly includes the fiber crops welding ontology and being arranged on welding ontology
Point is provided with fitting groove and welding ontology floor on the welding ontology, and the welding ontology floor setting is in fitting groove
Between.It welds body upper part and designs cylinder point structure.By point structure, welding ontology can be fused in plastic fuel tank
Wall.The claw of column body end is assembled by the fitting groove of the flexible deformation indentation welding ontology of itself when claw reaches
Slot end, claw restore to the original state, and welding ontology can be assembled to column ontology by the connection type of this fabricated construction
On.Welding ontology can assembly method reduce the design difficulty of support rod, simplify moulding process, shorten opening for support rod
Send out the period.In order to guarantee the flatness of point structure, bar easy to support is welded to inner wall of oil tank, among welding ontology fitting groove
Design rib structure.
As an improvement of the present invention, the quantity of the weld assembly is at least 2, is separately fixed at columns assemblies
Both ends.
As an improvement of the present invention, the quantity of the weld assembly is 6, is separately fixed on columns assemblies both ends
On portion's Y shape floor.
As an improvement of the present invention, the angle of the gap slot is 40 °.
As an improvement of the present invention, the column ontology is set as plastic part or metalwork coating plastic part knot
Structure.
Compared with the existing technology, the invention has the advantages that, 1) the technical solution overall construction design is compact, ingenious,
The performance and quality of fuel system can be improved in the program: the technical solution realizes the detachable assembly of case supports bar,
Molding is easy；2) the case supports bar occupies small in size, reduces the nominal volume loss of fuel tank；3) program is in column ontology
Y-shaped cross-section end three all devises gap structure on direction, that is, is provided with gap slot, and the collision of any direction can lack
Stress concentration is formed at mouthful, convenient for fracture, it is ensured that oil tank body is not damaged；4) claw of program column body end with
By means of in the fitting groove of the flexible deformation indentation welding ontology of itself, when claw reaches fitting groove end, claw restores to the original state, passes through
Welding ontology can be assembled on column ontology by this mode；Welding ontology can assembly method reduce the design of support rod
Difficulty simplifies moulding process, shortens the development cycle of support rod, and program assembly parts share, and increases the module of design
Change and flexibility.
Detailed description of the invention
Fig. 1 is overall structure of the present invention；
Fig. 2 is support rod perspective view of the explosion；
Fig. 3 is column body construction schematic diagram；
Fig. 4 is column body cross-section structural schematic diagram；
Fig. 5 is column root gap structural schematic diagram；
Fig. 6 is welding body construction schematic diagram；
Fig. 7 is structural schematic diagram after welding ontology assembly；
Fig. 8-Figure 11 is the fuel tank completed state schematic diagram for being provided with supporting element；
In figure: 1, weld assembly, 2, columns assemblies, 21, end claw, 22, column body cross-section, 23, end floor,
24, gap slot, 25, column ontology, 11, point, 12, fitting groove, 13, welding floor, 14, welding ontology, 3, mold, 4, type
Base, 5, intermediate mold, 6, supporting element.
Specific embodiment:
In order to deepen the understanding of the present invention, the present embodiment is described in detail with reference to the accompanying drawing.
Embodiment 1: referring to Fig. 1, Fig. 2, a kind of high pressure plastic fuel tank inner bin supporting element, the supporting element packet
The columns assemblies 2 being used to support and the weld assembly 1 for connecting with inner wall of oil tank are included, the weld assembly 1 passes through machinery
Assembly is installed to columns assemblies, which is made of weld assembly and columns assemblies.The columns assemblies 2 are wrapped
It includes column ontology 25 and the end floor 23 at column ontology both ends is set.Column ontology 25 can be plastic part, by POM,
The materials such as PA, PPA, PBT, PPS, PEEK are constituted；Column ontology 25 can also pass through the techniques such as encapsulated by metalwork and plastic part
Preparation, common metal part enhance support rod strength and stiffness in outside, encapsulated play in internal metalwork in inside, plastic part
Effect.Referring to Fig. 6, Fig. 7, the weld assembly 1 includes welding ontology 14 and the point 11 welded on ontology is arranged in, and is welded
Connecing ontology generally other can be constituted by HDPE or with the material of the mutual welding of plastic fuel tank inner wall.Welding ontology 14 passes through machine
Tool assembly is installed on column ontology 25, and supporting rod is fixed by the welding ontology at both ends with plastic fuel tank inner surface welding
Onto inner wall of oil tank.When plastic fuel tank is in excessively high positive pressure or negative pressure, it can prevent plastics from firing with supporting plastic fuel tank
Fuel tank deformation, guarantees the normal use of plastic fuel tank.It welds body upper part and designs cylinder point structure, by point structure,
Welding ontology can firmly be fused to plastic fuel tank inner wall.
Embodiment 2: referring to Fig. 3, Fig. 4, Fig. 6, Fig. 7, as an improvement of the present invention, the end of the end floor 23
It is provided with end claw 21, the column body cross-section 22 is set as y-shaped cross-section, and the end floor 23 is set as end Y
Shape floor.Fitting groove 12 and welding ontology floor 13, the welding ontology floor setting are provided on the welding ontology 14
Among fitting groove；This body section of column of support rod is designed using Y shape, has not only met the intensity requirement of support rod, but also only
It occupies fuel tank internal capacity more, the design of fuel tank nominal volume can be met to greatest extent.Column body end circumferential direction
Upper design Y shape floor designs claw structure on Y shape floor, is assembled to column sheet for ontology is welded by the flexible deformation of claw
On body.By the erecting and welding ontology on three directions of column body end Y shape floor, then will welding ontology and plastic fuel tank
The mode of inner wall welding, it can be ensured that column ontology will not fall off inside fuel tank.In different height plastic high voltage fuel tank
Development process in, welding ontology can be used as general part exploitation.In addition, can realize and cut easily by simply adjusting mold
Face shape is identical, different height column ontology exploitation.The detachable assembly that support rod may be implemented using this design, is subtracted
Lack design difficulty and the development cycle of column ontology, can quickly be applied to the exploitation of different height plastic high voltage fuel tank.
The claw of column body end welds in the fitting groove of ontology by the flexible deformation indentation of itself, when claw reaches fitting groove end
End, claw restore to the original state, and welding ontology can be assembled on column ontology in this way.Weld the side of assembly of ontology
Formula reduces the design difficulty of support rod, simplifies moulding process, shortens the development cycle of support rod.In order to guarantee point knot
The flatness of structure, bar easy to support are welded to inner wall of oil tank, in welding ontology fitting groove medium design rib structure.Weld ontology
Structure and assembly after state it is as shown in Figure 7.Remaining structure and advantage are identical with embodiment 1.
Embodiment 3: referring to Fig. 5, as an improvement of the present invention, the root at column ontology both ends is provided with gap slot
24, the angle of the gap slot is 30 ° -60 °, and preferably, the angle of the gap slot is 40 °.It is designed in column ontology root
Notch feature, when fuel tank, which is in, the operating conditions such as falls, collide, stress is concentrated and causes to be broken at column ontology root gap, can be with
Impact energy is absorbed, fuel tank is avoided to leak.Notch angle generally designs within the scope of 30 ° to 60 °, it is recommended to use 40 ° of notch
Angle.Due to all devising gap structure on the direction of column ontology y-shaped cross-section end three, the collision of any direction is ok
It forms stress in indentation, there to concentrate, convenient for fracture, it is ensured that oil tank body is not damaged.Remaining structure and advantage and embodiment 1
It is identical.
Embodiment 4: referring to Fig. 1, Fig. 2, as an improvement of the present invention, the quantity of the weld assembly is at least 2,
The both ends of columns assemblies are separately fixed at, in the technical solution, the quantity of the weld assembly is 6, is separately fixed at column
On the Y shape floor of component both ends top.Remaining structure and advantage are identical with embodiment 1.
The fuel tank forming process of the supporting element is arranged: referring to Fig. 8-Figure 11, plastic fuel tank support rod places technique, support
Bar is installed to the whole process inside plastic fuel tank and needs the equipment such as blow moulding machine, mold, intermediate mold, manipulator, specifically such as
Under:
A. blow moulding machine forms two panels parison between left and right half module 3 and intermediate mold 5, blow moulding machine blanking process schematic diagram,
It is illustrated in fig. 8 shown below；
B. left and right half module and intermediate mold molding, fuel tank is preforming, as shown in Figure 9；
C. after fuel tank is preforming, left and right half module die sinking, intermediate mold is moved out to the other side, will be supported by mechanical arm
Bar 6 is placed on the fuel tank shell in the half module of left and right, as shown in Figure 10；
D. mechanical arm removes, and left and right half module molding, fuel tank final molding as shown in figure 11 can be with by above method
Plastic support rods are installed to inside plastic fuel tank.
The present invention can also be formed in combination with example 1 at least one of described technical characteristic of examples of implementation 2,3,4
New embodiment.
It should be noted that above-described embodiment, is not intended to limit the scope of protection of the present invention, in above-mentioned technical proposal
On the basis of made equivalents or substitution each fall within the range that the claims in the present invention are protected.
Claims (10)
1. a kind of high pressure plastic fuel tank inner bin supporting element, which is characterized in that the supporting element includes being used to support
Columns assemblies and weld assembly for being connect with inner wall of oil tank, the weld assembly column is installed to by Automatic manual transmission
Component.
2. high pressure plastic fuel tank inner bin supporting element according to claim 1, which is characterized in that the column
Component includes column ontology and the end floor that column ontology both ends are arranged in.
3. high pressure plastic fuel tank inner bin supporting element according to claim 2, which is characterized in that the end
The end of floor is provided with end claw.
4. high pressure plastic fuel tank inner bin supporting element according to claim 3, which is characterized in that the column
Body cross-section is set as y-shaped cross-section, and the end floor whole installation is end Y shape floor.
5. high pressure plastic fuel tank inner bin supporting element according to claim 2, which is characterized in that in column sheet
The root at body both ends is provided with gap slot, and the angle of the gap slot is 30 ° -60 °.
6. high pressure plastic fuel tank inner bin supporting element according to claim 2, which is characterized in that the welding
Component includes the point welding ontology and being arranged on welding ontology, is provided with fitting groove and welding on the welding ontology
Ontology floor, the welding ontology floor are arranged among fitting groove.
7. high pressure plastic fuel tank inner bin supporting element according to claim 2, which is characterized in that the welding
The quantity of component is at least 2, is separately fixed at the both ends of columns assemblies.
8. high pressure plastic fuel tank inner bin supporting element according to claim 4, which is characterized in that the welding
The quantity of component is 6, is separately fixed on the morning Y shape floor of columns assemblies both ends.
9. high pressure plastic fuel tank inner bin supporting element according to claim 5, which is characterized in that the notch
The angle of slot is 40 °.
10. high pressure plastic fuel tank inner bin supporting element according to claim 2, which is characterized in that described vertical
Column ontology is set as plastic part or metalwork coating plastic part structure.
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| CN201821291647.4U CN208760419U (en) | 2018-08-12 | 2018-08-12 | A kind of high pressure plastic fuel tank inner bin supporting element |
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| CN201821291647.4U CN208760419U (en) | 2018-08-12 | 2018-08-12 | A kind of high pressure plastic fuel tank inner bin supporting element |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109203980A (en) * | 2018-08-12 | 2019-01-15 | 亚普汽车部件股份有限公司 | A kind of high pressure plastic fuel tank inner bin supporting element |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109203980A (en) * | 2018-08-12 | 2019-01-15 | 亚普汽车部件股份有限公司 | A kind of high pressure plastic fuel tank inner bin supporting element |
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