CN207649727U - A kind of fuel-quantity transducer - Google Patents
A kind of fuel-quantity transducer Download PDFInfo
- Publication number
- CN207649727U CN207649727U CN201820034193.6U CN201820034193U CN207649727U CN 207649727 U CN207649727 U CN 207649727U CN 201820034193 U CN201820034193 U CN 201820034193U CN 207649727 U CN207649727 U CN 207649727U
- Authority
- CN
- China
- Prior art keywords
- outer tube
- fuel
- ring flange
- quantity transducer
- wiring board
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000000034 method Methods 0.000 claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 6
- 238000009434 installation Methods 0.000 claims abstract description 6
- 239000010959 steel Substances 0.000 claims abstract description 6
- 238000000465 moulding Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 11
- 230000001681 protective effect Effects 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 14
- 238000003466 welding Methods 0.000 abstract description 8
- 239000002828 fuel tank Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 230000035939 shock Effects 0.000 abstract description 4
- 238000004512 die casting Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 238000001746 injection moulding Methods 0.000 description 4
- 239000002253 acid Substances 0.000 description 2
- 238000002161 passivation Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 238000005488 sandblasting Methods 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 210000002478 hand joint Anatomy 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Level Indicators Using A Float (AREA)
Abstract
A kind of fuel-quantity transducer will be made of ring flange, outer tube, float, wiring board, bottom cover, bundle assembly.Ring flange upper end can installation wiring assembly, lower end weld outer tube top.Inner sealing has the float of magnet steel that can float up and down through outer tube with oil level.Circuit board having built-in in outer tube, several resistance and tongue tube are welded on wiring board, and the top of wiring board passes through ring flange to be welded with bundle assembly.The soldered bottom cover in the bottom end of outer tube seals, and axis or spring can be connected and fixed under bottom cover.Ring flange is big with the area of outer tube contact surface through die-casting process integrated molding, reduces welding difficulty, enhances the fastness and external shock resistance ability of junction.Fixing axle or spring can withstand fuel tank bottom surface, and fuel-quantity transducer shakes therewith when preventing vehicle from shaking.Bundle assembly carries out also reaching sealing effect when being molded encapsulated guarantee high/low temperature.
Description
Technical field
The utility model is related to fuel-quantity transducer field, more particularly to a kind of automobile-used fuel-quantity transducer of engineering.
Background technology
The use environment of engineering truck is severe and complicated relative to commercial car, thus engineering truck parts it is functional can
It is more by designing factor needed to be considered.Wherein fuel-quantity transducer mostly uses straight barrel type, and operation principle is by float
Magnet steel triggers the open and close and resistance value of tongue tube on wiring board, and resistance value corresponds to highly shows oil mass value accordingly.
But have Railway Project do not consider it is thorough if, fuel-quantity transducer may fail during the work time.
First problem is that ring flange is connect with outer tube, mostly uses ring flange and only carries out spot welding in a plane with outer tube
It connects, and the usual top heavy of ring flange, upper big lower thin, commissure resists the ability of outer impact force weaker.
When Second Problem is that vehicle shakes, the fuel-quantity transducer in fuel tank also easily follows shaking, acutely shakes on the one hand
It can make to damage between parts, fuel-quantity transducer flexural deformation can on the one hand be even broken.
Third problem is sealing problem, and fuel-quantity transducer transmits signal by circuit part, causes if sealing is improper
Sensor internal is intake oil inlet and etching lines plate, and fuel-quantity transducer cisco unity malfunction will be finally caused.
Patent announcement number is CN201575849U's《A kind of fuel-quantity transducer》In terminal assembly using injection molding once at
Type plays sealing function to a certain extent, but this scheme has 2 defects.First, terminal assembly is inserted by plastics and conduction
Piece form, in high and low temperature environment due to the shrinking percentage of two kinds of materials of plastics and metal difference, still will appear gap and cannot
Antiseepage.Second is that terminal assembly use single injection-molded, the fixed-type port that can only just connect same model in port, without
The port switching connection requirement of different model is adapted to, flexibility is poor.
Utility model content
To solve the above-mentioned problems, the technical solution of the utility model is：A kind of fuel-quantity transducer, ring flange upper end can
The top of outer tube is welded in installation wiring assembly, lower end.Inner sealing has the float of magnet steel can be with being floated downward on oil level through outer tube
It is dynamic.Circuit board having built-in in outer tube, several resistance and tongue tube are welded on wiring board, and the top of wiring board passes through ring flange and line
Beam assembly welds.One end that bundle assembly is connect with wiring board to conducting wire be molded encapsulated using encapsulated technique, and the other end is
Terminal assembly is the port with external connection.The soldered bottom cover sealing in the bottom end of outer tube, can be connected and fixed under bottom cover axis or
Spring.
In the technical scheme, ring flange is integrally formed through die-casting process, ring flange material be preferably it is not magnetic not
Become rusty steel, surface sand-blasting, acid wash passivation processing.One end that ring flange is connect with outer tube is in T fonts.There are an installing port, outer tube in T-type
Top be inserted into ring flange installing port, then sealing welding.Ring flange and outer tube connecting pin are T-shaped, are on the one hand making joint face
One annular face is increased to by planar coil, junction essence becomes face by line, and another aspect T-type so that ring flange is downward
Extended, reinforces the antihunting of outer tube.Using this structure welding, the area of ring flange and outer tube contact surface is big, reduces
Welding difficulty, enhances the fastness and outer tube external shock resistance ability of junction, ensures that fuel-quantity transducer meets garage
Industry standard QC/T823-2009《Automobile, motor vehicle-oil sensor》The highest level requirement of vibration resistance.
In the technical scheme, axis can be connected and fixed under bottom cover, and either spring fixing axle or spring can withstand oil tank bottom
Face, fuel-quantity transducer shakes therewith when preventing vehicle from shaking.
Specifically, bottom cover lower end be equipped with a threaded hole, when bottom cover lower end connection be fixing axle when, oil tank bottom face is corresponding
It is provided with fixed groove.Fixing axle one end has screw thread that can screw in bottom cover threaded hole, and the other end is inserted into the groove of fuel tank bottom surface.
Optionally, bottom cover lower thread hole connects a bolt, and one end of spring will be fixed under bottom cover by bolt.Preferably
Spring is taper.
In the technical scheme, one end that bundle assembly is connect with wiring board carries out injection molding packet using encapsulated technique to conducting wire
Glue, cover material select material identical with wire insulation outer layer.Material identical makes shrinking percentage phase of the sealant with articulamentum
Together, in high and low temperature environment, it also can guarantee sealing effect.One end of bundle assembly and external connection, can be according to assembly demand certainly
It carries out being assembled into external interface end by apolegamy sheath, contact pin, seal plug.Rubber protecting jacket passes through what conducting wire can protect assembling to connect end
Mouthful.The rubber protecting jacket is by injection molding one-pass molding.
Description of the drawings
Fig. 1, existing fuel-quantity transducer structural schematic diagram；
Fig. 2, existing fuel-quantity transducer bundle assembly connection diagram；
Fig. 3, the installation diagram of the utility model fuel-quantity transducer；
Fig. 4, a kind of installation diagram of fuel-quantity transducer of the utility model；
Fig. 5, a kind of fuel-quantity transducer schematic diagram of the utility model；
Fig. 6, the encapsulated bundle assembly schematic diagram of the utility model.
Specific implementation mode
As shown in Figure 1, existing fuel-quantity transducer ring flange (1) and outer tube (2) welding surface are a planes, because outer tube is
A hollow pipe, practical upper flange plate only rely only on a linear circle contact surface with outer tube and weld.This structure shock resistance and
The ability of external force resistance impact force is very weak.
As shown in Fig. 2, the wiring board of fuel-quantity transducer is by the outside output signal of connection wiring harness assembly, the prior art
Typically directly the conducting wire of bundle assembly (804) is directly connect with wiring board, then is sealed on ring flange by process for filling colloid
End.The case where there are seal failures when sealing effect controls bad or high/low temperature situation, it is possible to permeability, infiltration corrosion
Wiring board, eventually leading to fuel-quantity transducer cannot work.
In order to overcome the above problem, the utility model improvement is illustrated with reference to embodiment.
The technical program is illustrated below in conjunction with the accompanying drawings.The elaboration of embodiment is intended to help to understand the technical program
Improvement, rather than the innovation of the utility model is limited by embodiment.In addition, being combined not to the arbitrary of the present embodiment
It needs to pay any performing creative labour again, therefore also in the protection domain of the technical program.Or else it is detached from the technical program
Innovative point under the deformation design made shall fall within the protection scope of the present invention.
As shown in Figures 3 to 5, a kind of fuel-quantity transducer, mainly by ring flange (1), outer tube (2), float (3), wiring board,
Bottom cover (4), bundle assembly (8) composition.Ring flange (1) upper end of fuel-quantity transducer can installation wiring assembly (8), lower end welding is outer
Manage the top of (2).Inner sealing has the float (3) of magnet steel (301) that can float up and down through outer tube (2) with oil level.Outer tube (2)
Middle circuit board having built-in, several resistance and tongue tube are welded on wiring board, and the top of wiring board passes through ring flange (1) and harness total
It is welded at (8).One end that bundle assembly (8) is connect with wiring board carries out conducting wire to be molded encapsulated, the other end using encapsulated technique
Be terminal assembly it is port with external connection.Soldered bottom cover (4) sealing in the bottom end of outer tube (2), bottom cover can connect under (4)
Fixing axle (5) or spring (7).
Preferably, ring flange (1) is integrally formed through die-casting process, and ring flange (1) material is preferably not magnetic stainless
Steel, surface sand-blasting, acid wash passivation processing.One end that ring flange (1) is connect with outer tube (2) is in T fonts.It is an installing port in T-type,
Ring flange (1) installing port, then sealing welding are inserted into the top of outer tube (2).Ring flange (1) and outer tube connecting pin are T-shaped, on the one hand
Joint face is being made to increase to an annular face by planar coil, junction essence becomes face by line, and another aspect T-type makes
It obtains ring flange to be extended downwards, reinforces the antihunting of outer tube.Ensure ring flange (1) with outer tube (2) even using this structure
Connect the fastness and external shock resistance ability at place so that fuel-quantity transducer meets automobile industry standard
QC/T823-2009《Automobile, motor vehicle-oil sensor》The highest level requirement of vibration resistance.
Preferably, axis (5) can be connected and fixed under bottom cover (4), and either spring (7) fixing axle (5) or spring (7) can be withstood
Fuel tank bottom surface, fuel-quantity transducer shakes therewith when preventing vehicle from shaking.
Specifically, bottom cover (4) lower end be equipped with a threaded hole, when bottom cover lower end connection be fixing axle (5) when, fuel tank bottom surface
It is corresponding to be provided with fixed groove.Fixing axle (5) one end has screw thread that can screw in bottom cover (4) threaded hole, and the other end is inserted into oil tank bottom
The groove in face.
Optionally, bottom cover (4) lower thread hole connects a bolt (6), and one end of spring (7) will be fixed on by bolt (6)
Under bottom cover (4).Preferred spring (7) is taper.
As shown in fig. 6, conducting wire (804) is noted using encapsulated technique in one end that bundle assembly (8) is connect with wiring board
Mould encapsulated, encapsulated place's (801) material selection material identical with conducting wire (804) insulating outer layer.Material identical make sealant with
The shrinking percentage of articulamentum is identical, in high and low temperature environment, also can guarantee sealing effect.Bundle assembly (8) and the one of external connection
End is external connection port (802), outer connectivity port (802) can according to assembly demand freely match sheath, contact pin, seal plug into
Row assembling.Rubber protecting jacket (803) passes through what conducting wire (804) can protect assembling to connect port (802).The rubber protecting jacket
(803) by injection molding one-pass molding.
Claims (4)
1. a kind of fuel-quantity transducer is mainly made of ring flange, outer tube, float, wiring board, bottom cover, bundle assembly, on ring flange
Installation wiring assembly, lower end is held to weld the top of outer tube, the float for being sealed with magnet steel can float up and down through outer tube with oil level,
Circuit board having built-in in outer tube, several resistance and tongue tube are welded on wiring board, and the top of wiring board passes through ring flange and harness
Assembly welds, and the bottom cover that the bottom end of outer tube is soldered seals, it is characterised in that：One end that bundle assembly is connect with wiring board uses
Encapsulated technique to harness be molded encapsulated.
2. fuel-quantity transducer according to claim 1, it is characterised in that：The cover material of bundle assembly is selected exhausted with harness
The identical material of edge layer.
3. fuel-quantity transducer according to claim 1 or 2, it is characterised in that：Bundle assembly external interface goes out to be cased with rubber
Protective case.
4. fuel-quantity transducer according to claim 3, it is characterised in that：Rubber protecting jacket is through being molded one-pass molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820034193.6U CN207649727U (en) | 2018-01-10 | 2018-01-10 | A kind of fuel-quantity transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820034193.6U CN207649727U (en) | 2018-01-10 | 2018-01-10 | A kind of fuel-quantity transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207649727U true CN207649727U (en) | 2018-07-24 |
Family
ID=62877209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820034193.6U Active CN207649727U (en) | 2018-01-10 | 2018-01-10 | A kind of fuel-quantity transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207649727U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022095200A1 (en) * | 2020-11-09 | 2022-05-12 | 深圳市大疆创新科技有限公司 | Liquid level meter and unmanned aerial vehicle |
-
2018
- 2018-01-10 CN CN201820034193.6U patent/CN207649727U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022095200A1 (en) * | 2020-11-09 | 2022-05-12 | 深圳市大疆创新科技有限公司 | Liquid level meter and unmanned aerial vehicle |
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