CN202007886U - Non-contact neutral position switch - Google Patents
Non-contact neutral position switch Download PDFInfo
- Publication number
- CN202007886U CN202007886U CN2011200008113U CN201120000811U CN202007886U CN 202007886 U CN202007886 U CN 202007886U CN 2011200008113 U CN2011200008113 U CN 2011200008113U CN 201120000811 U CN201120000811 U CN 201120000811U CN 202007886 U CN202007886 U CN 202007886U
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- China
- Prior art keywords
- neutral position
- position switch
- gear arm
- gear
- permanent magnet
- 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.)
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- Gear-Shifting Mechanisms (AREA)
Abstract
The utility model discloses a non-contact neutral position switch, which resolves the problems that mechanical neutral position switches in the prior art affect position shifting quality and are short in service lift, low in reliability and the like. The non-contact neutral position switch comprises a shifting arm provided with an end a and an end b, a groove is arranged between the end a and the end b of the shifting arm, the non-contact neutral position switch further comprises permanent magnets and a magnetic sensor, one of the permanent magnets is fixedly connected to the end a of the shifting arm, and the other permanent magnet is fixedly connected to the end b of the shifting arm. The magnetic sensor is fixed outside a path corresponding to the groove of the shifting arm, and the end a and the end b of the shifting arm pass through the path.
Description
Technical field
The utility model relates to the automobile production field, relates in particular to a kind of neutral position switch that the gearbox neutral is detected of being used for.
Background technique
Characteristics such as along with global developing of automobile industry, the micro-hybrid system is because to have a cost low, and structural modification is little have become manufacturer's exploitation main flow.In the micro-hybrid system, neutral position switch is one of them critical elements, and particularly with the miniature power hybrid system of start stop system, the space switch provides the neutral signal for Engine ECU, and the Transmission gear state is discerned.
The tradition neutral position switch mostly is mechanical type, and the steel ball of neutral position switch directly contacts with the shift of transmission arm, and has certain pretightening force, influences the car load shift quality, and has not long, the not high shortcoming of reliability of wearing and tearing, working life.
On open was that July 25, publication number in 2007 are CN2926683 and were in the patent documentation of CN2206241 for August 30 nineteen ninety-five, publication number in open day, employed neutral position switch also still is traditional neutral position switch, the space switch is not improved, therefore, the shortcoming of touch switch still exists.
Summary of the invention
The purpose of this utility model is to provide a kind of contactless neutral position switch, and it does not influence shift quality, and long service life, reliability height are easy to install.
The utility model is mainly solved by following technical proposals at the prior art problem, a kind of contactless neutral position switch, comprise gear arm, gear arm has a end and b end, have groove between gear arm a end and b end, also comprise permanent magnet, magnetic quantity transducer, gear arm a holds a fixedly connected permanent magnet, gear arm b holds fixedly connected another permanent magnet, that magnetic quantity transducer is fixed on is corresponding with the gear arm groove, simultaneously again gear arm a end, b end the outside, path of process.Magnetic quantity transducer does not contact with gear arm, therefore, influences shift quality unlike mechanical switch.By the rotation of gear arm, permanent magnet is through the induction zone of magnetic quantity transducer, and magnetic quantity transducer is sensed change of magnetic field strength, output electrical signal, thereby judges the range state of speed changer.
As preferably, permanent magnet is a magnet steel.Magnet steel has advantages such as high-temperature adaptability is good, corrosion-resistant, helps further improving the reliability of contactless neutral position switch.
As preferably, the exterior edge face shape of magnet steel is a curved surface.The exterior edge face shape of magnet steel is identical with the end surface shape of a of gear arm end and b end, all is curved surface, magnet steel is embedded on the end face of a end and b end, makes the neutral position switch structure more reasonable, attractive in appearance.
As preferably, magnetic quantity transducer is a Hall transducer.Utilize that the Hall transducer volume is little, highly sensitive, temperature is floated advantages such as little output amplitude is big, can so that contactless space switch is easy for installation, the gear monitoring accurately.
As preferably, magnetic quantity transducer is a magneto diode.Utilize the strong characteristics of magneto diode output signal, can adapt to dissimilar neutral signal processing apparatus.
The beneficial effect that the utility model brings is, do not influence shift quality, do not have mechanical wear, long service life, and the reliability height, cost of production is low, installs, easy to use.
Description of drawings
Fig. 1 is a kind of front schematic view of the present utility model;
Fig. 2 is a neutral sectional view of the present utility model;
Fig. 3 is one grade of third gear of the present utility model and five grades of sectional views;
Fig. 4 is second gear fourth gear of the present utility model and reverse gear sectional view.
Among the figure: the 1st, gear arm, the 2nd, magnetic quantity transducer, the 3rd, permanent magnet, the 4th, b end, the 5th, groove, the 6th, a end.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is further described in detail.
Embodiment: as shown in Figure 1 and Figure 2, a kind of contactless neutral position switch, comprise gear arm 1, gear arm 1 has a end 6 and b end 4, have groove 5 between gear arm a end 6 and b end 4, also comprise permanent magnet 3, magnetic quantity transducer 2, gear arm a end 6 is inlayed a permanent magnet 3, gear arm b end 4 is inlayed another permanent magnet 3, and magnetic quantity transducer 2 is fixed on corresponding with groove 5 by support and in the outside, path of gear arm a end 6,4 processes of b end.
Permanent magnet 3 is magnet steel, and magnetic quantity transducer 2 is Hall transducers.
As shown in Figure 3, gear arm a holds one grade of 6 respective notch, third gear and five grades, and is seasonable when turning to 2 pairs of Hall transducers, Hall transducer 2 output effective voltage signals.
As shown in Figure 4, gear arm b holds 4 respective notch second gears, fourth gear and reverse gear, and is seasonable when turning to 2 pairs of Hall transducers, Hall transducer 2 output effective voltage signals.
When initial, contact alignment indentation 5(Fig. 2 of Hall transducer 2), respond to less than magnetic field, the output LOW voltage signal, at this moment, speed changer is in neutral gear position.
When speed changer was hung into one, three, five grade of arbitrary gear, the gearshift drag-line drove the gear arm rotation, and the contact of Hall transducer 2 is aimed at magnet steel 3(Fig. 3), sense changes of magnetic field, Hall transducer output effective voltage signal, at this moment, speed changer is in non-neutral gear position.
In like manner, when speed changer is hung into two, four, during the arbitrary gear of reverse gear, the gearshift drag-line drives the gear arm opposite spin, the contact of Hall transducer 2 is aimed at magnet steel 3(Fig. 4), sense changes of magnetic field, Hall transducer 2 output effective voltage signals, at this moment, speed changer is in non-neutral gear position.
The output voltage signal of Hall transducer 2 offers relevant device and carries out the control relevant with neutral.
Do not influence shift quality so the utlity model has, do not have mechanical wear, long service life, the reliability height, cost of production is low, and feature is installed, easy to use etc.
Claims (5)
1. contactless neutral position switch, comprise gear arm, described gear arm has a end and b end, between gear arm a end and b end, has groove, it is characterized in that: also comprise permanent magnet, magnetic quantity transducer, the a of gear arm holds a fixedly connected described permanent magnet, fixedly connected another the described permanent magnet of the b of gear arm end, that magnetic quantity transducer is fixed on is corresponding with the gear arm groove, simultaneously again gear arm a end, b end the outside, path of process.
2. according to the described a kind of contactless neutral position switch of claim 1, it is characterized in that: described permanent magnet is a magnet steel.
3. according to claim 1 or 2 described a kind of contactless neutral position switch, it is characterized in that: the exterior edge face shape of described magnet steel is a curved surface.
4. according to the described a kind of contactless neutral position switch of claim 1, it is characterized in that: described magnetic quantity transducer is a Hall transducer.
5. according to the described a kind of contactless neutral position switch of claim 1, it is characterized in that: described magnetic quantity transducer is a magneto diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200008113U CN202007886U (en) | 2011-01-04 | 2011-01-04 | Non-contact neutral position switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200008113U CN202007886U (en) | 2011-01-04 | 2011-01-04 | Non-contact neutral position switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202007886U true CN202007886U (en) | 2011-10-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200008113U Expired - Fee Related CN202007886U (en) | 2011-01-04 | 2011-01-04 | Non-contact neutral position switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202007886U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537341A (en) * | 2011-12-26 | 2012-07-04 | 联合汽车电子有限公司 | Neutral position sensor |
| CN102678918A (en) * | 2012-04-28 | 2012-09-19 | 长城汽车股份有限公司 | Neutral position switch and automobile |
| CN104197000A (en) * | 2014-09-23 | 2014-12-10 | 上海森太克汽车电子有限公司 | External neutral position sensor structure |
| CN104279322A (en) * | 2013-12-10 | 2015-01-14 | 苏州旲烔机电科技有限公司 | Neutral position switch on vehicle manual transmission |
| CN104494042A (en) * | 2014-12-22 | 2015-04-08 | 埃泰克汽车电子(芜湖)有限公司 | Magnetic induction module for automobile neutral-gear switch and manufacture method thereof |
| CN104712749A (en) * | 2015-02-13 | 2015-06-17 | 宁波高发汽车控制系统股份有限公司 | Neutral gear switch |
| CN105042068A (en) * | 2015-05-20 | 2015-11-11 | 格特拉克（江西）传动系统有限公司 | Integrated sensor integrating non-contact type neutral sensor and back-up lamp switch |
| CN106151511A (en) * | 2015-03-24 | 2016-11-23 | 长城汽车股份有限公司 | Shift sensor and there is its gearshift, variator and vehicle |
| CN106499807A (en) * | 2016-12-27 | 2017-03-15 | 埃泰克汽车电子(芜湖)有限公司 | A kind of back of the body magnetic-type neutral position switch structure |
| CN106870727A (en) * | 2015-12-10 | 2017-06-20 | 泰科电子科技（苏州工业园区）有限公司 | A kind of sensing system |
-
2011
- 2011-01-04 CN CN2011200008113U patent/CN202007886U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537341B (en) * | 2011-12-26 | 2016-01-20 | 联合汽车电子有限公司 | Neutral position sensor |
| CN102537341A (en) * | 2011-12-26 | 2012-07-04 | 联合汽车电子有限公司 | Neutral position sensor |
| CN102678918A (en) * | 2012-04-28 | 2012-09-19 | 长城汽车股份有限公司 | Neutral position switch and automobile |
| CN102678918B (en) * | 2012-04-28 | 2015-03-11 | 长城汽车股份有限公司 | Neutral position switch and automobile |
| CN104279322A (en) * | 2013-12-10 | 2015-01-14 | 苏州旲烔机电科技有限公司 | Neutral position switch on vehicle manual transmission |
| CN104197000A (en) * | 2014-09-23 | 2014-12-10 | 上海森太克汽车电子有限公司 | External neutral position sensor structure |
| CN104494042A (en) * | 2014-12-22 | 2015-04-08 | 埃泰克汽车电子(芜湖)有限公司 | Magnetic induction module for automobile neutral-gear switch and manufacture method thereof |
| CN104712749A (en) * | 2015-02-13 | 2015-06-17 | 宁波高发汽车控制系统股份有限公司 | Neutral gear switch |
| CN106151511A (en) * | 2015-03-24 | 2016-11-23 | 长城汽车股份有限公司 | Shift sensor and there is its gearshift, variator and vehicle |
| CN106151511B (en) * | 2015-03-24 | 2019-07-05 | 长城汽车股份有限公司 | Shift sensor and gearshift, speed changer and vehicle with it |
| CN105042068A (en) * | 2015-05-20 | 2015-11-11 | 格特拉克（江西）传动系统有限公司 | Integrated sensor integrating non-contact type neutral sensor and back-up lamp switch |
| CN106870727A (en) * | 2015-12-10 | 2017-06-20 | 泰科电子科技（苏州工业园区）有限公司 | A kind of sensing system |
| CN106499807A (en) * | 2016-12-27 | 2017-03-15 | 埃泰克汽车电子(芜湖)有限公司 | A kind of back of the body magnetic-type neutral position switch structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111012 Termination date: 20140104 |