CN104880236A - Novel oil level sensor structure - Google Patents
Novel oil level sensor structure Download PDFInfo
- Publication number
- CN104880236A CN104880236A CN201510351509.5A CN201510351509A CN104880236A CN 104880236 A CN104880236 A CN 104880236A CN 201510351509 A CN201510351509 A CN 201510351509A CN 104880236 A CN104880236 A CN 104880236A
- Authority
- CN
- China
- Prior art keywords
- contact
- reed
- level sensor
- swing arm
- conduction band
- 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.)
- Pending
Links
Abstract
The invention discloses a novel oil level sensor structure. The novel oil level sensor structure comprises a framework, a swing arm, a reed, a first contact, a second contact, an input wire and an output wire. The swing arm is hinged to the framework through a pin shaft, the reed is fixed to the swing arm and can swing along with the swing arm, and the first contact and the second contact are precious metal alloy contacts. The first end of the first contact and the first end of the second contact are fixed to the first end of the reed in a resistance welding mode. The second end of the first contact and the second end of the second contact make contact with a conduction band. The input wire is connected with the conduction band, and the output wire is connected with the reed. The two precious metal alloy contacts are arranged on the reed and are good in corrosion resistance, oxide films cannot be generated on the surfaces of the contacts, the output resistance value precision is high, and it is ensured that an automobile oil level meter performs accurate displaying. The two precious metal alloy contacts are welded and fixed to the reed through precise resistance welding, the service life is long, and the maintaining cost is saved.
Description
Technical field:
The invention belongs to automobile oil level sensor technical field, specifically relate to a kind of oil-level sensor structure.
Background technology:
Fuel level sensor is the vitals detecting automotive oil tank oil level, this sensor is the change causing electric capacity between sensor housing and induction electrode after utilizing oil to enter container, and is the part that curent change detects oil position or height in container by this change transitions.How many fuel level sensor and automobile power system, automobile oil level list catenation, first measure oil mass in automotive oil tank inside, then send automobile oil level table to, carry out display Fuel Oil Remaining after process.
Traditional fuel level sensor is made up of parts such as float, float lever, conduction band, sliding contacts, wherein conduction band is exactly a slide rheostat, the size of its resistance is controlled by the position of float, along with the change of Fuel Oil Remaining in fuel tank, float also can fluctuate thereupon, thus float lever just can drive sliding contact to slide, the resistance of conduction band will change thereupon, when on-load voltage is fixing, the output current of sensor also just there occurs change, and electric current to be reflected on automobile oil level table and to be converted into Fuel Oil Remaining according to certain ratio.The variable resistor of traditional fuel level sensor adopts contact to rub with thick-film resistor sheet and contacts, due to the contact using general material to make, serviceable life is short, its life-span is 1 ~ 2 year, the use of a large amount of sulphur and Novel oil product is contained as methanol gasoline, ethanol petrol in current domestic common oil product, fuel level sensor uses contact surface easily to produce layer of metal sulphur silver oxide film in these oil products, oxide film can increase contact resistance, make the resistance value signal of sensor output error, cause automobile oil level table to show inaccurate; In addition, contact generally direct welding or be molded on reed, changes very inconvenient, is unfavorable for maintenance, increases auto repair cost simultaneously.
Summary of the invention:
For this reason, technical matters to be solved by this invention is that the fuel level sensor contact surface for automobile in prior art easily produces oxide film, and output resistance precision is low, Fuel Oil Remaining display is inaccurate, change inconvenient, maintenance cost is high, thus proposes a kind of oil-level sensor structure.
For achieving the above object, technical scheme of the present invention is as follows:
A kind of oil-level sensor structure, comprising:
Skeleton, described skeleton is fixedly installed bearing pin.
Swing arm, described swing arm is by described hinge on described skeleton, and described swing arm swings around described bearing pin.
Reed, described reed to be fixed in described swing arm and to swing with described swing arm.
First contact and the second contact, described first contact and described second contact are precious metal alloys contact, the first end of described first contact and the first end of described second contact adopt the mode of resistance welded to be fixed on the first end of described reed, and the second end of described first contact contacts with conduction band with the second end of described second contact.
Input lead and output lead, described input lead is connected with described conduction band, and described output lead is connected with described reed.
Preferred as technique scheme, the precious metal alloys that described in described first contact, the second contact adopts are nickel billon or polarium.
Preferred as technique scheme, the second end of described first contact and the second end of described second contact contact the mode that employing face contacts with conduction band.
Preferred as technique scheme, also comprise spring wire, the first end of described spring wire connects described reed, and the second end of described spring wire connects described output lead, and described output lead is connected with described reed by described spring wire.
Preferred as technique scheme, also comprise substrate, described substrate is arranged on the below of described skeleton, and described conduction band is arranged on the top of described substrate.
Preferred as technique scheme, described conduction band is endless belt-shaped conduction band.
Beneficial effect of the present invention is: it by arranging two precious metal alloys contacts on reed, precious metal alloys contact excellent corrosion resistance, can meet in the gasoline containing 130PPM sulphur, continuous firing more than 2,000,000 times, contact surface can not produce oxide film, output resistance precision is high, guarantees the display of automobile oil level table accurately; It is by being weldingly fixed on reed by two precious metal alloys contacts through precision resistance, and long service life, reduces maintenance frequency, saves maintenance cost.
Accompanying drawing illustrates:
The following drawings is only intended to schematically illustrate the present invention and explain, not delimit the scope of the invention.Wherein:
Fig. 1 is the oil-level sensor syndeton schematic diagram of one embodiment of the invention;
Fig. 2 is the reed of one embodiment of the invention and the annexation schematic diagram of contact;
Fig. 3 asks the spring wire syndeton schematic diagram of one embodiment of the invention.
Symbol description in figure:
1-skeleton, 2-swing arm, 3-reed, 4-first contact, 5-second contact, 6-conduction band, 7-input lead, 8-output lead, 9-spring wire, 10-substrate, 101-bearing pin, 901-first pad, 902-second pad.
Embodiment:
As shown in Figure 1, oil-level sensor syndeton of the present invention, comprising: skeleton 1, swing arm 2, reed 3, the first contact 4 and the second contact 5, input lead 7 and output lead 8.
The center of described skeleton 1 is fixedly installed bearing pin 101.
Described swing arm 2 is hinged on described skeleton 1 by described bearing pin 101, and described swing arm 2 swings around described bearing pin 101.
Described reed 3 to be fixed in described swing arm 2 and to swing with described swing arm 2, and the lower end in the first end of described reed 3 and figure is the one end near described conduction band 6, and the upper end in the second end of described reed 3 and figure is injection-moulded in described swing arm 2.
Described first contact 4 and described second contact 5 are precious metal alloys contact, and the precious metal alloys that described first contact 4 and described second contact 5 adopt are nickel gold (AuNi) alloy or porpezite (AuPd) alloy.As shown in Figure 2, the first end of described first contact 4 and the first end of described second contact 5 adopt the mode of precision resistance welding to be fixed on the first end of described reed 3, second end of described first contact 4 contacts with conduction band 6 with the second end of described second contact 5, namely the second end of described first contact 4 and the second side pressure of described second contact 5 are on described conduction band 6, and the second end of described first contact 4 and the second end of described second contact 5 contact the mode that employing face contacts with conduction band 6.In the present embodiment, the part that the first end top at the first end top and described second contact 5 of choosing described first contact 4 contacts with described conduction band 6 adopts precious metal alloys material, this part volume taken is little, can ensure that while reducing costs contact surface can not produce oxide film, export high-precision resistance value; The first end top surface of described contact 4 and the first end top surface of described contact 5 are plane, can carry out face better contact with described conduction band 6.
Described input lead 7 is connected with described conduction band 6, and described output lead 8 is connected with described reed 3.Described input lead 7 and described output lead 8 are separately positioned on the both sides of described skeleton 1.
Oil-level sensor syndeton of the present invention also comprises spring wire 9, and described output lead 8 is connected with described reed 3 by described spring wire 9.As shown in Figure 3, the first end of described spring wire 9 connects described reed 3, and in the present embodiment, the first end of described spring wire 9 welds with described reed 3 at the first pad 901 place; Second end of described spring wire 9 connects described output lead 8, and in the present embodiment, the second end of described spring wire 9 welds with described output lead 8 at the second pad 902 place.Oil-level sensor syndeton of the present invention also comprises substrate 10, and described substrate 10 is arranged on the below of described skeleton 1, and described conduction band 6 is arranged on the top of described substrate 10.Described conduction band 6 is endless belt-shaped conduction band.
Oil-level sensor structure described in the present embodiment, comprise: skeleton, swing arm, reed, the first contact and the second contact, input lead and output lead, swing arm by hinge on skeleton, reed to be fixed in swing arm and to swing with swing arm, first contact and the second contact are precious metal alloys contact, the first end of the first contact and the first end of the second contact adopt the mode of resistance welded to be fixed on the first end of reed, second end of the first contact contacts with conduction band with the second end of the second contact, input lead is connected with conduction band, and output lead is connected with reed.It by arranging two precious metal alloys contacts, precious metal alloys contact excellent corrosion resistance on reed, and contact surface can not produce oxide film, and output resistance precision is high, guarantees the display of automobile oil level table accurately; It is by being weldingly fixed on reed by two precious metal alloys contacts through precision resistance, and long service life, saves maintenance cost.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of extending out or variation be still among the protection domain of the invention.
Claims (6)
1. an oil-level sensor structure, is characterized in that, comprising:
Skeleton (1), described skeleton (1) is fixedly installed bearing pin (101);
Swing arm (2), described swing arm (2) is hinged on described skeleton (1) by described bearing pin (101), and described swing arm (2) swings around described bearing pin (101);
Reed (3), described reed (3) is fixed on described swing arm (2) and goes up and swing with described swing arm (2);
First contact (4) and the second contact (5), described first contact (4) and described second contact (5) are precious metal alloys contact, the first end of described first contact (4) and the first end of described second contact (5) all adopt the mode of resistance welded to be fixed on the first end of described reed (3), and the second end of described first contact (4) contacts with conduction band (6) with the second end of described second contact (5);
Input lead (7) and output lead (8), described input lead (7) is connected with described conduction band (6), and described output lead (8) is connected with described reed (3).
2. oil-level sensor structure according to claim 1, is characterized in that: the precious metal alloys that described first contact (4) and described second contact (5) adopt are nickel billon or polarium.
3. oil-level sensor structure according to claim 1 and 2, is characterized in that: the second end of described first contact (4) and the second end of described second contact (5) contact the mode that employing face contacts with conduction band (6).
4. oil-level sensor structure according to claim 1, it is characterized in that, also comprise: spring wire (9), the first end of described spring wire (9) connects described reed (3), second end of described spring wire (9) connects described output lead (8), and described output lead (8) is connected with described reed (3) by described spring wire (9).
5. the oil-level sensor structure according to claim 1 or 4, it is characterized in that, also comprise: substrate (10), described substrate (10) is arranged on the below of described skeleton (1), and described conduction band (6) is arranged on the top of described substrate (10).
6. oil-level sensor structure according to claim 5, is characterized in that: described conduction band (6) is endless belt-shaped conduction band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510351509.5A CN104880236A (en) | 2015-06-23 | 2015-06-23 | Novel oil level sensor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510351509.5A CN104880236A (en) | 2015-06-23 | 2015-06-23 | Novel oil level sensor structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104880236A true CN104880236A (en) | 2015-09-02 |
Family
ID=53947819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510351509.5A Pending CN104880236A (en) | 2015-06-23 | 2015-06-23 | Novel oil level sensor structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104880236A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105115568A (en) * | 2015-09-23 | 2015-12-02 | 浙江湖州新京昌电子有限公司 | Novel oil level sensor structure |
| CN107990960A (en) * | 2017-06-08 | 2018-05-04 | 上海盈智汽车零部件有限公司 | A kind of oil-level sensor |
| CN111103085A (en) * | 2019-12-16 | 2020-05-05 | 武汉驰电科技有限公司 | Mechanical pressure sensor |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2709955Y (en) * | 2004-06-16 | 2005-07-13 | 叶艺林 | Composite contact oil level sensor assembly |
| CN201548287U (en) * | 2009-10-26 | 2010-08-11 | 浙江湖州新京昌电子有限公司 | Zinc-white copper alloy contact liquid level and oil level sensor |
| CN201555637U (en) * | 2009-11-30 | 2010-08-18 | 浙江湖州新京昌电子有限公司 | Thick film circuit board of liquid and oil level sensor |
| CN101922956A (en) * | 2010-06-25 | 2010-12-22 | 扬州奥力威传感器有限公司 | Wear-resistant oil-proof liquid level sensor |
| CN102252734A (en) * | 2011-06-13 | 2011-11-23 | 浙江湖州新京昌电子有限公司 | Sealed type liquid level and oil level sensor |
| CN202631063U (en) * | 2012-05-07 | 2012-12-26 | 青岛海诺测控有限公司 | Laser alignment correcting device |
| CN204788580U (en) * | 2015-06-23 | 2015-11-18 | 浙江湖州新京昌电子有限公司 | Novel engine oil level sensor structure |
-
2015
- 2015-06-23 CN CN201510351509.5A patent/CN104880236A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2709955Y (en) * | 2004-06-16 | 2005-07-13 | 叶艺林 | Composite contact oil level sensor assembly |
| CN201548287U (en) * | 2009-10-26 | 2010-08-11 | 浙江湖州新京昌电子有限公司 | Zinc-white copper alloy contact liquid level and oil level sensor |
| CN201555637U (en) * | 2009-11-30 | 2010-08-18 | 浙江湖州新京昌电子有限公司 | Thick film circuit board of liquid and oil level sensor |
| CN101922956A (en) * | 2010-06-25 | 2010-12-22 | 扬州奥力威传感器有限公司 | Wear-resistant oil-proof liquid level sensor |
| CN102252734A (en) * | 2011-06-13 | 2011-11-23 | 浙江湖州新京昌电子有限公司 | Sealed type liquid level and oil level sensor |
| CN202631063U (en) * | 2012-05-07 | 2012-12-26 | 青岛海诺测控有限公司 | Laser alignment correcting device |
| CN204788580U (en) * | 2015-06-23 | 2015-11-18 | 浙江湖州新京昌电子有限公司 | Novel engine oil level sensor structure |
Non-Patent Citations (1)
| Title |
|---|
| 刘法治: "《电气控制应用技术》", 31 January 2013, 机械工业出版社 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105115568A (en) * | 2015-09-23 | 2015-12-02 | 浙江湖州新京昌电子有限公司 | Novel oil level sensor structure |
| CN107990960A (en) * | 2017-06-08 | 2018-05-04 | 上海盈智汽车零部件有限公司 | A kind of oil-level sensor |
| CN107990960B (en) * | 2017-06-08 | 2024-02-23 | 上海盈智汽车零部件有限公司 | Novel oil level sensor |
| CN111103085A (en) * | 2019-12-16 | 2020-05-05 | 武汉驰电科技有限公司 | Mechanical pressure sensor |
| CN111103085B (en) * | 2019-12-16 | 2021-08-06 | 武汉驰电科技有限公司 | Mechanical pressure sensor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5669291B2 (en) | Liquid level detector | |
| CN102252734A (en) | Sealed type liquid level and oil level sensor | |
| CN104880236A (en) | Novel oil level sensor structure | |
| US8820158B2 (en) | Liquid level detecting device | |
| CN105115568A (en) | Novel oil level sensor structure | |
| CN203203664U (en) | Non-sliding contact point type oil tank liquid level device | |
| CN204788580U (en) | Novel engine oil level sensor structure | |
| CN101793179B (en) | Oil pressure warning sensor for pressure sensitive capacitor | |
| CN201548287U (en) | Zinc-white copper alloy contact liquid level and oil level sensor | |
| CN202101738U (en) | Sealing type liquid level and oil level sensor | |
| CN201548292U (en) | Non-contact type oil level sensor | |
| CN202002706U (en) | Hall switch type through oil level indicator | |
| CN203929173U (en) | Automobile-used oil level indication sensor | |
| CN202631060U (en) | Liquid level sensor and wafer thereof | |
| CN205192576U (en) | Novel engine oil level sensor structure | |
| CN201555640U (en) | Methanol fuel liquid level sensor | |
| CN202501907U (en) | Sensor for measuring position of liquid level | |
| CN201653568U (en) | Oil surface winding thermometer for oil-immersed type transformer | |
| CN101813507A (en) | Sensor used for detecting vehicle oil level | |
| CN203376075U (en) | Temperature warning sensor | |
| CN203148528U (en) | Wear-free long-service-life high-reliability liquid level sensor | |
| CN208873559U (en) | Four high-accuracy end feet alloy Chip-Rs | |
| CN202748104U (en) | High-precision linear fuel sensor | |
| CN2426821Y (en) | Fluid media pressure sensor for vehicle and ship | |
| CN216694804U (en) | Non-contact position sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150902 |
|
| RJ01 | Rejection of invention patent application after publication |