CN203148528U - Wear-free long-service-life high-reliability liquid level sensor - Google Patents
Wear-free long-service-life high-reliability liquid level sensor Download PDFInfo
- Publication number
- CN203148528U CN203148528U CN 201320132701 CN201320132701U CN203148528U CN 203148528 U CN203148528 U CN 203148528U CN 201320132701 CN201320132701 CN 201320132701 CN 201320132701 U CN201320132701 U CN 201320132701U CN 203148528 U CN203148528 U CN 203148528U
- Authority
- CN
- China
- Prior art keywords
- thick
- contact
- resistor disc
- liquid level
- level sensor
- 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.)
- Expired - Lifetime
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 15
- 238000007789 sealing Methods 0.000 claims abstract description 18
- 229920000297 Rayon Polymers 0.000 claims abstract description 13
- 238000007639 printing Methods 0.000 claims abstract description 4
- 239000000758 substrate Substances 0.000 claims description 15
- 239000003292 glue Substances 0.000 claims description 12
- 239000002828 fuel tank Substances 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 210000001138 tear Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
Images
Landscapes
- Level Indicators Using A Float (AREA)
Abstract
Disclosed is a wear-free long-service-life high-reliability liquid level sensor. A rocker arm (6) is hinged to a sensor base (4) through a pin shaft (5); a contact (8) is fixed on the rocker arm (6), and electrically makes contact with a resistor disc (1); an electrical signal of the contact (8) is transmitted through an outgoing line (7); the resistor disc (1) is fixed on a thick-film resistor base plate (9) in a printing and bonding mode; the thick-film resistor base plate (9) is fixed on the sensor base (4), and is characterized in that a flexible circuit contact plate (3) is bonded and fixed on the thick-film resistor base plate (9) through sealing viscose (2), and is placed on the upper portion of the resistor disc (1). The wear-free long-service-life high-reliability liquid level sensor is longer in service life, stronger in reliability, more stable in resistance output, hardly affected by the environment and good in reliability.
Description
Technical field:
The utility model relates to liquid level, fuel level sensor technical field, does not have the liquid level sensor of the high life high reliability of wearing and tearing more specifically to a kind of resistor disc.
Background technology:
Liquid level sensor is the important component part of automotive oil tank, and its every index directly influences the performance of automobile instrument indication.
As shown in Figure 1, the resistor disc A1 of liquid level sensor of the prior art directly expose in vehicle fuel and with contact A 3 sliding contacts that are fixed on the rocking arm A2.Float is connected on the rocking arm A2, when the float oscilaltion, causing rocking arm A2 rotates, resistance on the resistor disc A1 changes, thereby by the liquid level in the variation perception fuel tank of this resistance, this liquid level sensor is owing to be sliding contact, and contact portion is easy to wear, life-span is short, and produces the debris influence signal quality.Owing to expose in fuel oil, be vulnerable to the corrosion of fuel oil simultaneously, influence life-span and reliability.
The utility model content:
The purpose of this utility model is exactly the deficiency at prior art, and a kind of liquid level sensor that does not have wearing and tearing high life high reliability is provided, and its life-span is longer, and reliability is stronger, and resistance output is more stable, affected by environment little, good reliability.
Technology solution of the present utility model is as follows:
A kind of liquid level sensor that does not have wearing and tearing high life high reliability, it comprises resistor disc, the sealing viscose glue, the flexible circuitry contact plate, sensor base, bearing pin; rocking arm and extension line; rocking arm is hinged on the sensor base by bearing pin; fixedly have the contact electrically to contact with resistor disc on the rocking arm; the electric signal of contact is carried by extension line; the resistor disc printing is adhesively fixed on the thick-film resistor substrate; the thick-film resistor substrate is fixed on the sensor base; be adhesively fixed with the flexible circuitry contact plate by the sealing viscose glue on the thick-film resistor substrate, the flexible circuitry contact plate places the top of resistor disc.
Described flexible circuitry contact plate, sealing viscose glue and thick-film resistor substrate form a seal cavity, and resistor disc is arranged in the sealing space.
The beneficial effects of the utility model are:
1, flexible circuitry contact plate, sealing viscose glue and thick-film resistor substrate form a seal cavity, and resistor disc is arranged in the sealing space.Resistor disc not with fuel tank in oil directly tactile, increased the serviceable life of resistor disc, thereby improved the serviceable life of sensor, also make resistor disc good stability, good reliability.
2, the contact contacts with resistor disc by pressing the flexible circuitry contact plate, and resistor disc is not subjected to the contact friction in the course of the work and weares and teares.
Description of drawings:
Fig. 1 is the prior art constructions synoptic diagram;
Fig. 2 is structural representation of the present utility model;
Fig. 3 is the structural representation of flexible circuitry contact plate part;
Fig. 4 is the decomposing schematic representation of flexible circuitry contact plate part.
Among the figure: 1, resistor disc; 2, sealing viscose glue; 3, flexible circuitry contact plate; 4, sensor base; 5, bearing pin; 6, rocking arm; 7, extension line; 8, contact; 9, thick-film resistor substrate.
Embodiment:
Embodiment: see shown in Fig. 2 to 4, a kind of liquid level sensor that does not have wearing and tearing high life high reliability, it comprises resistor disc 1, sealing viscose glue 2, flexible circuitry contact plate 3, sensor base 4, bearing pin 5; rocking arm 6 and extension line 7; rocking arm 6 is hinged on the sensor base 4 by bearing pin 5; fixedly have contact 8 electrically to contact with resistor disc 1 on the rocking arm 6; electric signal of contact 8 is carried by extension line 7; resistor disc 1 printing is adhesively fixed on the thick-film resistor substrate 9; thick-film resistor substrate 9 is fixed on the sensor base 4; be adhesively fixed with flexible circuitry contact plate 3 by sealing viscose glue 2 on the thick-film resistor substrate 9, flexible circuitry contact plate 3 places the top of resistor disc 1.
Described flexible circuitry contact plate 3, sealing viscose glue 2 and thick-film resistor substrate 9 form a seal cavity, and resistor disc 1 is arranged in the sealing space.
Principle of work: the rocking arm 6 of external fly rod and ball float moves under the drive of ball float, and the contact 8 on the rocking arm 6 is pressed flexible circuitry contact plate 3 and made 3 distortion of flexible circuitry contact plate, and contact 8 is pressing flexible circuitry contact plate 3 to contact with resistor disc 1.
Flexible circuitry contact plate 3, sealing viscose glue 2 and thick-film resistor substrate 9 form a seal cavity, and resistor disc 1 is arranged in the sealing space.Resistor disc 1 not with fuel tank in oil directly tactile, increased the serviceable life of resistor disc, thereby improved the serviceable life of sensor, also make resistor disc good stability, good reliability.
Contact 8 contacts with resistor disc 1 by pressing flexible circuitry contact plate 3, and resistor disc is not subjected to the contact friction in the course of the work and weares and teares.
Claims (2)
- One kind do not have wearing and tearing the high life high reliability liquid level sensor, it comprises resistor disc (1), sealing viscose glue (2), flexible circuitry contact plate (3), sensor base (4), bearing pin (5); rocking arm (6) and extension line (7); rocking arm (6) is hinged on the sensor base (4) by bearing pin (5); rocking arm (6) is gone up fixedly has contact (8) electrically to contact with resistor disc (1); the electric signal of contact (8) is carried by extension line (7); resistor disc (1) printing is adhesively fixed on the thick-film resistor substrate (9); thick-film resistor substrate (9) is fixed on the sensor base (4); it is characterized in that: thick-film resistor substrate (9) is gone up by sealing viscose glue (2) and is adhesively fixed with flexible circuitry contact plate (3), and flexible circuitry contact plate (3) places the top of resistor disc (1).
- According to claim 1 a kind of do not have wearing and tearing the high life high reliability liquid level sensor, it is characterized in that: flexible circuitry contact plate (3), sealing viscose glue (2) and thick-film resistor substrate (9) form a seal cavity, and resistor disc (1) is arranged in the sealing space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320132701 CN203148528U (en) | 2013-03-21 | 2013-03-21 | Wear-free long-service-life high-reliability liquid level sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320132701 CN203148528U (en) | 2013-03-21 | 2013-03-21 | Wear-free long-service-life high-reliability liquid level sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203148528U true CN203148528U (en) | 2013-08-21 |
Family
ID=48976045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320132701 Expired - Lifetime CN203148528U (en) | 2013-03-21 | 2013-03-21 | Wear-free long-service-life high-reliability liquid level sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203148528U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015087146A2 (en) | 2013-12-10 | 2015-06-18 | 大陆汽车有限公司 | Liquid level sensor |
| WO2018015232A1 (en) * | 2016-07-22 | 2018-01-25 | Continental Automotive Gmbh | Passive magnetic position sensor |
-
2013
- 2013-03-21 CN CN 201320132701 patent/CN203148528U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015087146A2 (en) | 2013-12-10 | 2015-06-18 | 大陆汽车有限公司 | Liquid level sensor |
| WO2018015232A1 (en) * | 2016-07-22 | 2018-01-25 | Continental Automotive Gmbh | Passive magnetic position sensor |
| CN109416274A (en) * | 2016-07-22 | 2019-03-01 | 大陆汽车有限公司 | Passive magnetic position sensor |
| US11022478B2 (en) | 2016-07-22 | 2021-06-01 | Vitesco Technologies GmbH | Passive magnetic position sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130821 |
|
| CX01 | Expiry of patent term |