CN103033238A - Oil pump oil quantity sensor of automobile - Google Patents
Oil pump oil quantity sensor of automobile Download PDFInfo
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- CN103033238A CN103033238A CN2012105654578A CN201210565457A CN103033238A CN 103033238 A CN103033238 A CN 103033238A CN 2012105654578 A CN2012105654578 A CN 2012105654578A CN 201210565457 A CN201210565457 A CN 201210565457A CN 103033238 A CN103033238 A CN 103033238A
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- rocker arm
- hole
- fuel
- oil
- oil pump
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Abstract
The invention provides an oil pump oil quantity sensor of an automobile. The oil pump oil quantity sensor comprises a case assembly, an upper cover assembly, an oil pump motor assembly, a filter screen assembly and an oil quantity sensor, wherein the oil quantity sensor comprises a floater, a floating rod, a ceramic circuit board, an elastic sheet, a conducting wire combination and a bottom case, the oil pump oil quantity sensor also comprises a sealing case, a fixing shaft, an outer rocker arm, an inner rocker arm and two pieces of magnetic steel, wherein the sealing case is arranged on the surface of the ceramic circuit board, the fixing shaft is arranged in a through hole of the sealing case and is tightly combined with a through hole of the sealing case so that fuel oil cannot be leaked, the outer rocker arm is rotatablely sheathed on one end of the fixing shaft contacting the fuel oil through a fixing shaft installing hole, then, the position of the outer rocker arm is limited on the outer rocker arm through a gasket and an opening gasket after the sheathing, the inner rocker arm is rotatablely sheathed on the other end of the fixing shaft through a fixing shaft hole, and the two pieces of magnetic steel are respectively provided with magnetic steel holes of the outer rocker arm and the inner rocker arm. The invention provides the oil pump oil quantity sensor with the advantages that the structure is simple, the work is reliable, the indication is accurate, and the service life is long.
Description
Technical field
The present invention relates to a kind of fuel-quantity transducer, particularly a kind of oil quantity sensor of vehicle oil pump is used for demonstration and the metering of oil mass in the automotive oil tank.
Background technology
Normally used fuel-quantity transducer is the rheostatic type float sensor in the automotive oil tank, its principle of work is: float moves up and down along with the height of oil level, make the variation of float position convert the displacement of rheostat contact to by lever, thereby change rheostatic output resistance, rheostatic output resistance is input to fluid level meter, the pointer of fluid level meter content gauge will rotate along with the variation of rheostat output resistance, thereby reach the purpose of indication oil level, prior art oil pump fuel-quantity transducer comprises sensor outer housing 16 shown in figure l, sensor loam cake 1, float assembly 15, be sleeved on the spring 7 on the guide pillar 6, screen modules 13 and Oil pump electrical machinery 12, motor fixing frame 11, motor base 14.2 is that fuel sucking pipe joint, 3 is that attaching plug, 4 is that oil returning pipe joint, 5 is that oil suction leather hose, 8 is that motor oil outlet, 9 is that motor power plug, 10 is that resistor disc makes up among Fig. 1.The Oil pump electrical machinery 12 of this oil pump fuel-quantity transducer is fixedly mounted in the sensor outer housing 16 by motor fixing frame 11, the direct fixed combination of motor pump and sensor is installed together, this sensor is immersed in the fuel tank content and is vulnerable to the pollution of fuel oil in the fuel tank and damages, for example the impurity of fuel oil is attached to resistor disc and causes the bad even brushing piece wear and rupture of conduction, or be subject to the influence of peak current fuel oil and produce silver oxide, the materials such as silver sulfide directly cause output impedance to change, cause bad phenomenon, cause the oil level misregister, the fault of even not indicating, make human pilot can not correctly judge the trapped fuel amount that fuel tank is interior, cause very large inconvenience, further have influence on the fixed accuracy of fuel tank fuel measuring, the life-span of reliability and use is so provide a kind of simple in structure, effective and fuel-quantity transducer long service life becomes the important topic of each producer's research.
Summary of the invention
The purpose of this invention is to provide a kind of simple in structure, reliable operation, indication accurately, the oil pump fuel-quantity transducer of long service life, to solve prior art oil pump fuel-quantity transducer owing to be immersed in the oil plant, the loose contact that causes, oil level misregister are not even indicated, and cause the technical matters that serviceable life is short, product quality is bad.
For achieving the above object, the present invention has adopted following technical scheme:
A kind of oil quantity sensor of vehicle oil pump, comprise casing assembly, cover assembly, the Oil pump electrical machinery assembly, screen modules and fuel-quantity transducer, described cover assembly, the Oil pump electrical machinery assembly, screen modules and fuel-quantity transducer are arranged on the described casing assembly, described fuel-quantity transducer is for detection of the residue oil plant in fuel tank, described fuel-quantity transducer comprises float, floating lever, ceramic circuit-board, shell fragment, call wire combination and drain pan, described fuel-quantity transducer is connected with casing assembly by described drain pan, described fuel-quantity transducer also comprises: a capsul, described capsul is installed on the surface of described ceramic circuit-board, described capsul closely is connected with the surface of described ceramic circuit-board, and has a through hole in described capsul; One stationary shaft, described stationary shaft is fixedly mounted in the through hole of described capsul, and the through hole of described stationary shaft and described capsul is combined closely and can not be allowed fuel blow; One outer rocker arm, described outer rocker arm is a microscler lamellar body, described outer rocker arm is provided with stationary shaft mounting hole, magnet steel mounting hole and floating lever mounting hole, described outer rocker arm is by on the rotatable end that is set in described stationary shaft contact fuel oil of stationary shaft mounting hole, and is spacing on described outer rocker arm with packing ring and split washer again after sheathed; One inner rocker arm, described inner rocker arm is a microscler lamellar body, described inner rocker arm is provided with fixed shaft hole and magnet steel hole, described magnet steel hole is corresponding to the magnet steel mounting hole of described outer rocker arm, described inner rocker arm is by on the rotatable other end that is set in described stationary shaft of fixed shaft hole, and described shell fragment is installed on the described inner rocker arm; And two magnet steel, described two magnet steel are installed on respectively the magnet steel hole of magnet steel mounting hole and the described inner rocker arm of described outer rocker arm.
According to the described oil quantity sensor of vehicle oil pump of preferred embodiment of the present invention, described inner rocker arm is provided with the shell fragment mounting hole, and described shell fragment is installed on the described inner rocker arm by described shell fragment mounting hole.
According to the described oil quantity sensor of vehicle oil pump of preferred embodiment of the present invention, described shell fragment is compressive state and contacts with described ceramic circuit-board.
According to the described oil quantity sensor of vehicle oil pump of preferred embodiment of the present invention, the described floating lever mounting hole of described outer rocker arm is manhole, and described floating lever inserts in the described floating lever mounting hole.
According to the described oil quantity sensor of vehicle oil pump of preferred embodiment of the present invention, the corresponding surface of described two magnet steel has relative magnetic pole.
According to the described oil quantity sensor of vehicle oil pump of preferred embodiment of the present invention, described shell fragment is to be made by copper material.
According to the described oil quantity sensor of vehicle oil pump of preferred embodiment of the present invention, described outer rocker arm is provided with the roller mounting hole, places steel ball in the described roller mounting hole, and in addition, described inner rocker arm is provided with the roller hole, and described roller is placed steel ball in the hole.
Since adopted above technical characterictic, so that the present invention, has following advantage and good effect than prior art:
The first, handling ease simple in structure of the present invention has reduced processing cost;
The second, the isolated fuel oil of the present invention contact with ceramic circuit so that the fuel-quantity transducer reliable operation, indicate accurate, long service life;
Three, the present invention is provided with rolling steel ball, so that the more stable swing of rocking arm increases the service life.
Certainly, implement any one specific embodiment of content of the present invention, might not have simultaneously above whole technique effect.
Description of drawings
Fig. 1 is the synoptic diagram of prior art oil pump fuel-quantity transducer;
Fig. 2 is the sealed structural representation of fuel-quantity transducer of the present invention;
Fig. 3 is the front view of capsul of the present invention;
Fig. 4 is the synoptic diagram of stationary shaft of the present invention;
Fig. 5 is the synoptic diagram of outer rocker arm of the present invention;
Fig. 6 is the cut-open view of the floating lever mounting hole of Fig. 5;
Fig. 7 is the schematic perspective view of inner rocker arm of the present invention;
Fig. 8 is the schematic perspective view of shell fragment of the present invention;
Fig. 9 is the combination schematic perspective view of inner rocker arm of the present invention and shell fragment;
Figure 10 is the sealed structural representation of another embodiment of the present invention fuel-quantity transducer;
Figure 11 is the inner rocker arm of another embodiment of the present invention and the combination schematic perspective view of shell fragment.
Embodiment
Design concept of the present invention is: in the use of reality, we find to be immersed in the bad phenomenon of ceramic circuit indication of fuel oil the inside, and some is after leaving fuel oil, and bad phenomenon disappears, and all parameters are normal,
Study the nucleophobic impact of fuel oil after finding to switch on, can disturb the resistance value of ceramic circuit output, cause misregister, therefore fuel oil is isolated with ceramic circuit thoroughly, can improve the fiduciary level of fuel-quantity transducer, it is more accurate to indicate; The surface of capsul and ceramic circuit-board closely is connected, and combining closely of stationary shaft and capsul do not allow fuel blow etc. in addition, guaranteed the reliability of fuel-quantity transducer.
Below in conjunction with accompanying drawing several preferred embodiments of the present invention are described in detail, but the present invention is not restricted to these embodiment.The present invention is contained any in substituting of making of marrow of the present invention and scope, modification, equivalent method and scheme.Understand for the public is had thoroughly the present invention, in the following preferred embodiment of the present invention, describe concrete details in detail, and do not have for a person skilled in the art the description of these details also can understand the present invention fully.In addition, for fear of essence of the present invention is caused unnecessary obscuring, do not describe well-known method, process, flow process, element etc. in detail.
A kind of oil quantity sensor of vehicle oil pump, comprise casing assembly, cover assembly, the Oil pump electrical machinery assembly, screen modules and fuel-quantity transducer, described cover assembly, the Oil pump electrical machinery assembly, screen modules and fuel-quantity transducer are arranged on the described casing assembly, described fuel-quantity transducer is for detection of the residue oil plant in fuel tank, described fuel-quantity transducer comprises float, floating lever, ceramic circuit-board, shell fragment, call wire combination and drain pan, described fuel-quantity transducer is connected with casing assembly by described drain pan, please refer to the sealed structural representation of Fig. 2 fuel-quantity transducer of the present invention, and please also refer to Fig. 3 to Fig. 9, comprising: capsul 20, stationary shaft 30, outer rocker arm 40, inner rocker arm 50, two magnet steel 60, packing ring 70 and split washer 80, described capsul 20 is installed on the surface of described ceramic circuit-board 90, described capsul 20 closely is connected with the surface of described ceramic circuit-board 90, the method that connects can be used laser bonding, in order to make sealing property better, glue in the extension filling can also connected, strengthen leakproofness, have a through hole 21 at described capsul 20 in addition; Then described stationary shaft 30 is fixedly mounted in the through hole 21 of described capsul 20, and described stationary shaft 30 and the through hole 21 of described capsul 20 are combined closely and can not be allowed fuel blow, and be certainly, better in order to make sealing property, can also fill with glue in the junction, strengthen leakproofness.
In addition, also comprise an outer rocker arm 40, outer rocker arm 40 is rectangle lamellar bodies, Rocker arm 40 is provided with stationary shaft mounting hole 41, magnet steel mounting hole 42 and floating lever mounting hole 43 outside, described outer rocker arm 40 is by on the rotatable end that is set in described stationary shaft 30 of stationary shaft mounting hole 41, the side at the contact fuel oil, spacing on described outer rocker arm 40 with packing ring 70 and split washer 80 again after sheathed, so mounted outer rocker arm 40 can be in stationary shaft 30 cofree rotations; In order to connect floating lever, floating lever mounting hole 43 on the outer rocker arm 40 cooperates the floating lever design, be generally manhole, floating lever inserts in the floating lever mounting hole 43, so that outer rocker arm 40 can rotate on the surface of capsul 20 around stationary shaft 30 with floating lever.
In addition, cooperate outer rocker arm 40 also to design an inner rocker arm 50, described inner rocker arm 50 is a microscler lamellar body, described inner rocker arm 50 is provided with fixed shaft hole 51, magnet steel hole 52 and shell fragment mounting hole 53, described inner rocker arm 50 is by on the rotatable other end that is set in described stationary shaft 30 of fixed shaft hole 51, the side at ceramic circuit-board 90, so mounted inner rocker arm 50 can be in stationary shaft 30 cofree rotations; Described shell fragment 91 is installed on the described inner rocker arm 50 by described shell fragment mounting hole 53, another embodiment of the present invention, described shell fragment 91 is penetrated bag and is installed on the described inner rocker arm 50, namely directly shell fragment 91 is coated on the inner rocker arm 50, mounted shell fragment 91 is to be compressive state to contact with described ceramic circuit-board 90, namely shell fragment 91 can rotate around stationary shaft 30 with inner rocker arm 50, slides on the surface of ceramic circuit-board 90 when shell fragment 91 rotates, and produces different resistance values; In addition, its back stretch of shell fragment 91 that is compressive state is supported on inner rocker arm 50 in the stationary shaft 30, can not drop out.
Also have in addition two magnet steel 60, these two magnet steel 60 are installed in respectively the magnet steel hole 52 of magnet steel mounting hole 42 and the described inner rocker arm 50 of described outer rocker arm 40.The magnet steel hole 52 of described inner rocker arm 50 is corresponding to the magnet steel mounting hole 42 of described outer rocker arm 40, the corresponding surface of two magnet steel 60 has relative magnetic pole, so just can attract each other, when outer rocker arm 40 is subject to the drive of floating lever and rotates, see through attracting each other of magnet steel 60, also driven the rotation of inner rocker arm 50, so that shell fragment 91 slides on the surface of ceramic circuit-board 90, produce different resistance values and show then that to ECU the Fuel Remained amount is on the oil mass indicating gauge by the call wire array output, consider wearing quality and the rigidity of shell fragment 91, the shell fragment 91 of present embodiment is to be made by copper material, and is two ring type shell fragments.
In addition, please also refer to Figure 10 and Figure 11, another embodiment of the present invention is in order to allow the more stable swing of rocking arm, can roller mounting hole 44 be set at described outer rocker arm 40, then place steel ball 45 in roller mounting hole 44, steel ball 45 is smooth sliding on capsul 20, in addition, can roller hole 54 be set at described inner rocker arm 50, then in described roller hole 54, place steel ball 45, same, steel ball 45 can be on capsul 20 smooth sliding.
In sum, owing to adopted above technical characterictic, so that the present invention has following advantage and good effect than prior art:
The first, handling ease simple in structure of the present invention has reduced processing cost;
The second, the isolated fuel oil of the present invention contact with ceramic circuit so that the fuel-quantity transducer reliable operation, indicate accurate, long service life;
Three, the present invention is provided with rolling steel ball, so that the more stable swing of rocking arm increases the service life.
The invention preferred embodiment just is used for helping to set forth the present invention.Preferred embodiment does not have all details of detailed descriptionthe, does not limit this invention yet and only is described embodiment.Obviously, according to the content of this instructions, can make many modifications and variations.These embodiment are chosen and specifically described to this instructions, is in order to explain better principle of the present invention and practical application, thereby the technical field technician can utilize the present invention well under making.The present invention only is subjected to the restriction of claims and four corner and equivalent.More than disclosed only be preferred embodiment of the present invention; but be not to limit itself; anyly have the knack of those skilled in the art in the situation of spiritual connotation of the present invention, the equalization of doing changes and changes, and all should drop in protection scope of the present invention.
Claims (7)
1. oil quantity sensor of vehicle oil pump, comprise casing assembly, cover assembly, Oil pump electrical machinery assembly, screen modules and fuel-quantity transducer, described cover assembly, Oil pump electrical machinery assembly, screen modules and fuel-quantity transducer are arranged on the described casing assembly, described fuel-quantity transducer is for detection of the residue oil plant in fuel tank, described fuel-quantity transducer comprises float, floating lever, ceramic circuit-board, shell fragment, call wire combination and drain pan, described fuel-quantity transducer is connected with casing assembly by described drain pan, and it is characterized in that: described fuel-quantity transducer also comprises:
One capsul, described capsul are installed on the surface of described ceramic circuit-board, and described capsul closely is connected with the surface of described ceramic circuit-board, and has a through hole in described capsul;
One stationary shaft, described stationary shaft is fixedly mounted in the through hole of described capsul, and the through hole of described stationary shaft and described capsul is combined closely and can not be allowed fuel blow;
One outer rocker arm, described outer rocker arm is a microscler lamellar body, described outer rocker arm is provided with stationary shaft mounting hole, magnet steel mounting hole and floating lever mounting hole, described outer rocker arm is by on the rotatable end that is set in described stationary shaft contact fuel oil of stationary shaft mounting hole, and is spacing on described outer rocker arm with packing ring and split washer again after sheathed;
One inner rocker arm, described inner rocker arm is a microscler lamellar body, described inner rocker arm is provided with fixed shaft hole and magnet steel hole, described magnet steel hole is corresponding to the magnet steel mounting hole of described outer rocker arm, described inner rocker arm is by on the rotatable other end that is set in described stationary shaft of fixed shaft hole, and described shell fragment is installed on the described inner rocker arm; And
Two magnet steel, described two magnet steel are installed on respectively the magnet steel hole of magnet steel mounting hole and the described inner rocker arm of described outer rocker arm.
2. oil quantity sensor of vehicle oil pump according to claim 1, it is characterized in that: described inner rocker arm is provided with the shell fragment mounting hole, and described shell fragment is installed on the described inner rocker arm by described shell fragment mounting hole.
3. oil quantity sensor of vehicle oil pump according to claim 1, it is characterized in that: described shell fragment is compressive state and contacts with described ceramic circuit-board.
4. oil quantity sensor of vehicle oil pump according to claim 1, it is characterized in that: the described floating lever mounting hole of described outer rocker arm is manhole, and described floating lever inserts in the described floating lever mounting hole.
5. oil quantity sensor of vehicle oil pump according to claim 1, it is characterized in that: the corresponding surface of described two magnet steel has relative magnetic pole.
6. oil quantity sensor of vehicle oil pump according to claim 1, it is characterized in that: described shell fragment is to be made by copper material.
7. oil quantity sensor of vehicle oil pump according to claim 1, it is characterized in that: described outer rocker arm is provided with the roller mounting hole, places steel ball in the described roller mounting hole, and in addition, described inner rocker arm is provided with the roller hole, and described roller is placed steel ball in the hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105654578A CN103033238A (en) | 2012-12-24 | 2012-12-24 | Oil pump oil quantity sensor of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105654578A CN103033238A (en) | 2012-12-24 | 2012-12-24 | Oil pump oil quantity sensor of automobile |
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| Publication Number | Publication Date |
|---|---|
| CN103033238A true CN103033238A (en) | 2013-04-10 |
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| CN2012105654578A Pending CN103033238A (en) | 2012-12-24 | 2012-12-24 | Oil pump oil quantity sensor of automobile |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86206809U (en) * | 1986-09-09 | 1987-08-05 | 李士瑛 | Magnetic liquid-level sensor with sliding rheostat |
| US20040163467A1 (en) * | 2003-02-20 | 2004-08-26 | Yazaki Corporation | Liquid level sensor and method of manufacturing the same |
| CN101476918A (en) * | 2009-01-19 | 2009-07-08 | 杭州永富电子仪表有限公司 | Oil quantity sensor of vehicle oil pump |
| CN201417167Y (en) * | 2009-06-23 | 2010-03-03 | 孙国庆 | Closed car oil level sensor |
| CN101750134A (en) * | 2008-12-02 | 2010-06-23 | 现代自动车株式会社 | Fuel sender assembly for vehicle |
| CN201724715U (en) * | 2010-04-27 | 2011-01-26 | 科博达重庆汽车电子有限公司 | Liquid level sensor |
| CN203053522U (en) * | 2012-12-24 | 2013-07-10 | 宁波洛卡特汽车零部件有限公司 | Oil quantity sensor of automotive oil pump |
-
2012
- 2012-12-24 CN CN2012105654578A patent/CN103033238A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86206809U (en) * | 1986-09-09 | 1987-08-05 | 李士瑛 | Magnetic liquid-level sensor with sliding rheostat |
| US20040163467A1 (en) * | 2003-02-20 | 2004-08-26 | Yazaki Corporation | Liquid level sensor and method of manufacturing the same |
| CN101750134A (en) * | 2008-12-02 | 2010-06-23 | 现代自动车株式会社 | Fuel sender assembly for vehicle |
| CN101476918A (en) * | 2009-01-19 | 2009-07-08 | 杭州永富电子仪表有限公司 | Oil quantity sensor of vehicle oil pump |
| CN201417167Y (en) * | 2009-06-23 | 2010-03-03 | 孙国庆 | Closed car oil level sensor |
| CN201724715U (en) * | 2010-04-27 | 2011-01-26 | 科博达重庆汽车电子有限公司 | Liquid level sensor |
| CN203053522U (en) * | 2012-12-24 | 2013-07-10 | 宁波洛卡特汽车零部件有限公司 | Oil quantity sensor of automotive oil pump |
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Application publication date: 20130410 |