CN204788580U - Novel engine oil level sensor structure - Google Patents
Novel engine oil level sensor structure Download PDFInfo
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- CN204788580U CN204788580U CN201520438920.1U CN201520438920U CN204788580U CN 204788580 U CN204788580 U CN 204788580U CN 201520438920 U CN201520438920 U CN 201520438920U CN 204788580 U CN204788580 U CN 204788580U
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- reed
- swing arm
- conduction band
- level sensor
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Abstract
The utility model discloses a novel engine oil level sensor structure, include: the skeleton, the swing arm, the reed, first contact and second contact, input lead and output lead, the swing arm articulates on the skeleton through the round pin axle, the reed is fixed in the swing arm and along with the swing arm swing, your metal alloy contact first contact and second contact are, the first end of first contact and the first end of second contact adopt resistance weld's mode to fix the first end at the reed, the second end of first contact and the second end of second contact and conduction band contact, the input lead is connected with the conduction band, output lead is connected with the reed. It is through setting up two your metal alloy contacts on the reed, your metal alloy contact corrosion resistance is excellent, and the contact surface can not produce the oxide film, and output resistance value precision is high, and it is accurate to ensure that the car oil level gauge shows, it is through fixing two your metal alloy contacts on the reed through accurate resistance weld, and long service life has saved cost of maintenance.
Description
Technical field:
The utility model belongs to automobile oil level sensor technical field, specifically relates 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.
Utility model content:
For this reason, technical problem to be solved in the utility model 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, the technical solution of the utility model 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.
The beneficial effects of the utility model are: 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 utility model and explain, does not limit scope of the present utility model.Wherein:
Fig. 1 is the oil-level sensor syndeton schematic diagram of the utility model embodiment;
Fig. 2 is the reed of the utility model embodiment and the annexation schematic diagram of contact;
Fig. 3 is the spring wire syndeton schematic diagram of the utility model embodiment.
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 utility model, 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 utility model 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 utility model 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 that the utility model creates.
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, is characterized in that, also comprise: 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).
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 |
|---|---|---|---|
| CN201520438920.1U CN204788580U (en) | 2015-06-23 | 2015-06-23 | Novel engine oil level sensor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520438920.1U CN204788580U (en) | 2015-06-23 | 2015-06-23 | Novel engine oil level sensor structure |
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| Publication Number | Publication Date |
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| CN204788580U true CN204788580U (en) | 2015-11-18 |
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| CN201520438920.1U Active CN204788580U (en) | 2015-06-23 | 2015-06-23 | Novel engine oil level sensor structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104880236A (en) * | 2015-06-23 | 2015-09-02 | 浙江湖州新京昌电子有限公司 | Novel oil level sensor structure |
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- 2015-06-23 CN CN201520438920.1U patent/CN204788580U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104880236A (en) * | 2015-06-23 | 2015-09-02 | 浙江湖州新京昌电子有限公司 | Novel oil level sensor structure |
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| C14 | Grant of patent or utility model | ||
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