CN103016675B - Electronic differential lock sensor - Google Patents
Electronic differential lock sensor Download PDFInfo
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- CN103016675B CN103016675B CN201210520080.4A CN201210520080A CN103016675B CN 103016675 B CN103016675 B CN 103016675B CN 201210520080 A CN201210520080 A CN 201210520080A CN 103016675 B CN103016675 B CN 103016675B
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- contact pin
- cylinder
- differential lock
- link
- piston
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Abstract
The invention discloses a kind of electronic differential lock sensor, comprise and be connected to pressure detection mechanism on cylinder casing wall and be arranged in cylinder block and the piston mechanism matched with pressure detection mechanism, pressure detection mechanism comprises inside and is provided with cavity and the link of one end open and be connected together at the plug at link aperture position place, link is connected on cylinder casing wall, plug is made up of plug body and the contact pin be arranged in plug body, the quantity of contact pin is three and is respectively the first contact pin, second contact pin and the 3rd contact pin, first contact pin connects with the second contact pin, normally closed dry reed-pipe is provided with in the internal cavities of link, piston mechanism comprises the piston matched with cylinder block inner space and the magnet be connected to towards normally closed dry reed-pipe on piston.Structure of the present invention is simple, reasonable in design, and use simple operation, failure rate is low, long service life, good stability, practical, using effect is good, is convenient to promote the use of.
Description
Technical field
The present invention relates to a kind of differential lock sensor, especially relate to a kind of electronic differential lock sensor.
Background technique
In prior art, the differential lock sensor that automobile bridge differential lock uses is mechanical sensor, there is following defect and deficiency:
1) mechanical sensor is mechanical due to what adopt, therefore the length of differential lock sensor can not be shortened, differential lock sensor the is arrived side of transmission shaft, cause differential lock sensor and transmission shaft almost parallel, in installation and using process, be vulnerable to the impact of extraneous factor, such as, installing carrying deposits in process, and the plastic interface of differential lock sensor easily lands, and causes fracture; In using process, the easy impact switch of the foreign material taken out of in drive axis process, causes plastic interface part to touch disconnected; Touching now disconnected rate is 2.5%;
2) mechanical sensor is because adopting spring and push rod principle, by spring and push rod quality problems, the personal factor impacts such as extraneous installations, extruding often, easily cause differential tutorial light glittering with Chang Liang etc. Its Failures;
3) mechanical sensor is owing to being in normally off for a long time, adopts seal ring and rubber to intercept circle, and easily because seal ring is aging or the impact of the not controlling of rubber material, cause switch seal to reduce, return is not in place, malfunctioning switch, and working life shortens;
4) because mechanical speed difference lock sensor adopts spring and push rod principle, when air inlet, gas can enter into differential lock sensor inside, and cause spring to get rusty, differential lock sensor is malfunctioning; In addition, also can leak gas after fracture, cause automobile pressure to leak, affect its brake system, bring potential safety hazard.
Summary of the invention
Technical problem to be solved by this invention is, for above-mentioned deficiency of the prior art, to provide a kind of electronic differential lock sensor, and its structure is simple, reasonable in design, use simple operation, failure rate is low, long service life, good stability, practical, using effect is good, is convenient to promote the use of.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of electronic differential lock sensor, it is characterized in that: comprise and be connected to pressure detection mechanism on cylinder casing wall and be arranged in cylinder block and the piston mechanism matched with described pressure detection mechanism, described pressure detection mechanism comprises inside and is provided with cavity and the link of one end open and be connected together at the plug at described link aperture position place, described link is connected on described cylinder casing wall, described plug is made up of plug body and the contact pin be arranged in described plug body, the quantity of described contact pin is three and is respectively the first contact pin, second contact pin and the 3rd contact pin, described first contact pin connects with the second contact pin, normally closed dry reed-pipe is provided with in the internal cavities of described link, one end of described normally closed dry reed-pipe connects with described first contact pin and the second contact pin, the other end of described normally closed dry reed-pipe connects with described 3rd contact pin, described piston mechanism comprises the piston matched with described cylinder block inner space and the magnet be connected to towards described normally closed dry reed-pipe on described piston.
Above-mentioned electronic differential lock sensor, is characterized in that: described link is threaded on described cylinder casing wall, and described cylinder casing wall is provided with tapped hole, described link is provided with the outside thread matched with the internal thread in described tapped hole.
Above-mentioned electronic differential lock sensor, is characterized in that: be provided with gasket seal between described link and described cylinder casing wall.
Above-mentioned electronic differential lock sensor, is characterized in that: comprise the dry reed-pipe protecting jacket for being closed by normally closed dry reed-pipe, is provided with high temperature resistant packing material between described dry reed-pipe protecting jacket and the inwall of described link.
Above-mentioned electronic differential lock sensor, is characterized in that: described piston mechanism comprises the seal ring be arranged between described piston and described cylinder block inwall, and described piston is provided with the first groove for placing described seal ring.
Above-mentioned electronic differential lock sensor, is characterized in that: the shape of described magnet is circular, and described piston is provided with the second groove for connecting described magnet.
Above-mentioned electronic differential lock sensor, is characterized in that: the copper that described link is 59-1 by model becomes.
Above-mentioned electronic differential lock sensor, is characterized in that: described plug body is made up of nylon, and described contact pin is become by the copper of electroplate.
Above-mentioned electronic differential lock sensor, is characterized in that: described piston is made up of No. 45 steel, and described magnet is chrome-faced and the 35UH magnet of resistance to 150 DEG C of high temperature.
Above-mentioned electronic differential lock sensor, is characterized in that: described dry reed-pipe protecting jacket is made of plastics, and described high temperature resistant packing material is 905 silicone filler material of resistance to 150 DEG C of high temperature.
The present invention compared with prior art has the following advantages:
1, structure of the present invention is simple, reasonable in design, and it is convenient to realize.
2, use simple operation of the present invention, differential lock sensor total length shortens in order to 30 millimeters by original 46 millimeters, effectively decreases artificial damaged in collision rate.
3, present invention employs electronic sensor, eliminate the direct point of contact of former mechanical speed difference lock sensor and piston, without the need to considering push rod quality problems, electronic sensor have employed electronic original part and high-density and high-temperature-resistant packing material and the disposable encapsulation of shell and completes, effectively control waterproof, shockproof, anti-gas-leak (when working of plastics damage, differential mechanism cylinder also can not leak gas), the use of electronic original part, working life will be much higher than mechanical.
4, the present invention is easy to output, and disposable detection up-to-standard rate is high, good stability, avoids current supplier after the qualified supply of material of detection, occurs again the problem that product is malfunctioning during bridge general assembly.
5, of the present invention practical, using effect is good, is convenient to promote the use of.
In sum, structure of the present invention is simple, reasonable in design, and use simple operation, failure rate is low, long service life, good stability, practical, using effect is good, is convenient to promote the use of.
Below by drawings and Examples, technological scheme of the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the annexation schematic diagram of plug of the present invention, link and normally closed dry reed-pipe.
Fig. 3 is the left view of Fig. 2.
Fig. 4 is the sectional view of inventive piston.
Fig. 5 is the right elevation of Fig. 4.
Fig. 6 is the first using state schematic diagram of the present invention.
Fig. 7 is the second using state schematic diagram of the present invention.
Description of reference numerals:
1-1-plug body; 1-2-the first contact pin; 1-3-the second contact pin;
1-4-the 3rd contact pin; 2-link; 3-normally closed dry reed-pipe;
5-cylinder; 5-1-tapped hole; 5-2-pneumatic interface;
6-1-piston; 6-11-the first groove; 6-12-the second groove;
6-2-magnet; 6-3-seal ring; 7-gasket seal;
8-dry reed-pipe protecting jacket; 9-high temperature resistant packing material.
Embodiment
As Fig. 1, shown in Fig. 2 and Fig. 3, the present invention includes and be connected to pressure detection mechanism on cylinder 5 casing wall and be arranged in cylinder 5 cylinder body and the piston mechanism matched with described pressure detection mechanism, described pressure detection mechanism comprises inside and is provided with cavity and the link 2 of one end open and be connected together at the plug at described link 2 aperture position place, described link 2 is connected on described cylinder 5 casing wall, described plug is made up of plug body 1-1 and the contact pin be arranged in described plug body 1-1, the quantity of described contact pin is three and is respectively the first contact pin 1-2, second contact pin 1-3 and the 3rd contact pin 1-4, described first contact pin 1-2 connects with the second contact pin 1-3, normally closed dry reed-pipe 3 is provided with in the internal cavities of described link 2, one end of described normally closed dry reed-pipe 3 connects with described first contact pin 1-2 and the second contact pin 1-3, the other end of described normally closed dry reed-pipe 3 connects with described 3rd contact pin 1-4, described piston mechanism comprises the piston 6-1 matched with described cylinder 5 cylinder interior space and the magnet 6-2 be connected to towards described normally closed dry reed-pipe 3 on described piston 6-1.
In the present embodiment, described link 2 is threaded on described cylinder 5 casing wall, and described cylinder 5 casing wall is provided with tapped hole 5-1, described link 2 is provided with the outside thread 2-1 matched with the internal thread in described tapped hole 5-1.Gasket seal 7 is provided with between described link 2 and described cylinder 5 casing wall.The present invention also comprises the dry reed-pipe protecting jacket 8 for being closed by normally closed dry reed-pipe 3, is provided with high temperature resistant packing material 9 between described dry reed-pipe protecting jacket 8 and the inwall of described link 2.
Composition graphs 4 and Fig. 5, in the present embodiment, described piston mechanism comprises the seal ring 6-3 be arranged between described piston 6-1 and described cylinder 5 inboard wall of cylinder block, and described piston 6-1 is provided with the first groove 6-11 for placing described seal ring 6-3.The shape of described magnet 6-2 is circular, and described piston 6-1 is provided with the second groove 6-12 for connecting described magnet 6-2.
In the present embodiment, the copper that described link 2 is 59-1 by model becomes.Described plug body 1-1 is made up of nylon, and described contact pin is become by the copper of electroplate.Described piston 6-1 is made up of No. 45 steel, and described magnet 6-2 is chrome-faced and the 35UH magnet of resistance to 150 DEG C of high temperature.Described dry reed-pipe protecting jacket 8 is made of plastics, and described high temperature resistant packing material 9 is 905 silicone filler material of resistance to 150 DEG C of high temperature.
Working principle of the present invention and working procedure are: as shown in Figure 6, when differential mechanism switch cuts out, gas circuit is closed, gas is not had to enter in cylinder 5 cylinder body from pneumatic interface 5-2, piston mechanism is in the position (in reality, general distance is 5 ~ 7mm) near pressure detection mechanism, normally closed dry reed-pipe 3 senses that the magnetic signal of magnet 6-2 is opened, and the differential tutorial light being used to indicate differential mechanism working state does not work, and differential mechanism does not work.As shown in Figure 7, when differential mechanism switch opens, gas circuit is ventilated, have gas to enter in cylinder 5 cylinder body from pneumatic interface 5-2, promote piston mechanism and move to the direction away from pressure detection mechanism, piston mechanism is in the position (in reality, general distance is about 10mm) away from pressure detection mechanism, normally closed dry reed-pipe 3 responds to the magnetic signal less than magnet 6-2, be in normally off, differential tutorial light is lighted, and automobile starts differential work.
In sum, non-contact work of the present invention, good waterproof performance, (when this differential lock sensor is damaged, automobile can normally travel to have stopped gas leak phenomenon, do not affect safety problem), improve working life doubly a lot, reach 1,000,000 times (prior art 100,000 times), the shorten length of this differential lock sensor own, greatly reduce the problem of colliding with, and being easy to output, disposable detection up-to-standard rate is high, good stability.
The above; it is only preferred embodiment of the present invention; not the present invention is imposed any restrictions, every above embodiment is done according to the technology of the present invention essence any simple modification, change and equivalent structure change, all still belong in the protection domain of technical solution of the present invention.
Claims (9)
1. an electronic differential lock sensor, it is characterized in that: comprise and be connected to pressure detection mechanism on cylinder (5) casing wall and be arranged in cylinder (5) cylinder body and the piston mechanism matched with described pressure detection mechanism, described pressure detection mechanism comprises inside and is provided with cavity and the link of one end open (2) and be connected together at the plug at described link (2) aperture position place, described link (2) is connected on described cylinder (5) casing wall, described plug is made up of plug body (1-1) and the contact pin be arranged in described plug body (1-1), the quantity of described contact pin is three and is respectively the first contact pin (1-2), second contact pin (1-3) and the 3rd contact pin (1-4), described first contact pin (1-2) connects with the second contact pin (1-3), normally closed dry reed-pipe (3) is provided with in the internal cavities of described link (2), one end of described normally closed dry reed-pipe (3) connects with described first contact pin (1-2) and the second contact pin (1-3), the other end of described normally closed dry reed-pipe (3) connects with described 3rd contact pin (1-4), described piston mechanism comprises the piston (6-1) matched with described cylinder (5) cylinder interior space and the magnet (6-2) be connected to towards described normally closed dry reed-pipe (3) on described piston (6-1), also comprising the dry reed-pipe protecting jacket (8) for being closed by normally closed dry reed-pipe (3), between the inwall of described dry reed-pipe protecting jacket (8) and described link (2), being provided with high temperature resistant packing material (9).
2. according to electronic differential lock sensor according to claim 1, it is characterized in that: described link (2) is threaded on described cylinder (5) casing wall, and described cylinder (5) casing wall is provided with tapped hole (5-1), described link (2) is provided with the outside thread (2-1) matched with the internal thread in described tapped hole (5-1).
3. according to the electronic differential lock sensor described in claim 1 or 2, it is characterized in that: between described link (2) and described cylinder (5) casing wall, be provided with gasket seal (7).
4. according to electronic differential lock sensor according to claim 1, it is characterized in that: described piston mechanism comprises the seal ring (6-3) be arranged between described piston (6-1) and described cylinder (5) inboard wall of cylinder block, and described piston (6-1) is provided with the first groove (6-11) for placing described seal ring (6-3).
5. according to electronic differential lock sensor according to claim 1, it is characterized in that: the shape of described magnet (6-2) is circular, and described piston (6-1) is provided with the second groove (6-12) for connecting described magnet (6-2).
6. according to electronic differential lock sensor according to claim 1, it is characterized in that: the copper that described link (2) is 59-1 by model becomes.
7. according to electronic differential lock sensor according to claim 1, it is characterized in that: described plug body (1-1) is made up of nylon, described contact pin is become by the copper of electroplate.
8. according to electronic differential lock sensor according to claim 1, it is characterized in that: described piston (6-1) is made up of No. 45 steel, described magnet (6-2) is for chrome-faced and the 35UH magnet of resistance to 150 DEG C of high temperature.
9. according to electronic differential lock sensor according to claim 1, it is characterized in that: described dry reed-pipe protecting jacket (8) is made of plastics, 905 silicone filler material that described high temperature resistant packing material (9) is resistance to 150 DEG C of high temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210520080.4A CN103016675B (en) | 2012-12-01 | 2012-12-01 | Electronic differential lock sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210520080.4A CN103016675B (en) | 2012-12-01 | 2012-12-01 | Electronic differential lock sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103016675A CN103016675A (en) | 2013-04-03 |
| CN103016675B true CN103016675B (en) | 2015-09-30 |
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ID=47965616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210520080.4A Expired - Fee Related CN103016675B (en) | 2012-12-01 | 2012-12-01 | Electronic differential lock sensor |
Country Status (1)
| Country | Link |
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| CN (1) | CN103016675B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154375A (en) * | 2013-05-14 | 2014-11-19 | 上海维萨仪表制造有限公司 | Temperature measuring and pressure measuring data collection head for high pressure pipeline |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4755636A (en) * | 1987-06-24 | 1988-07-05 | Taiyo, Ltd. | Piston position detecting device for fluid pressure cylinder |
| DE19513967A1 (en) * | 1995-04-13 | 1996-10-17 | Kemptener Gmbh Maschf | Piston cylinder unit |
| CN2593165Y (en) * | 2003-01-13 | 2003-12-17 | 杭州水表有限公司 | Electronic telemetering signalling water meter |
| CN101256087A (en) * | 2008-04-09 | 2008-09-03 | 长沙矿山研究院 | Non-contact position sensor |
| CN102169350A (en) * | 2010-02-25 | 2011-08-31 | 北京中冶华润科技发展有限公司 | Fluid sensor |
| CN201796814U (en) * | 2010-05-18 | 2011-04-13 | 珠海吉泰克燃气设备技术有限公司 | Differential pressure switch |
| CN202971806U (en) * | 2012-12-01 | 2013-06-05 | 宝鸡艾迪机械电器有限公司 | Electronic type differential lock sensor |
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2012
- 2012-12-01 CN CN201210520080.4A patent/CN103016675B/en not_active Expired - Fee Related
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| CN103016675A (en) | 2013-04-03 |
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Granted publication date: 20150930 Termination date: 20171201 |