CN204128569U - A kind of integral one-piece crankshaft position transducer - Google Patents
A kind of integral one-piece crankshaft position transducer Download PDFInfo
- Publication number
- CN204128569U CN204128569U CN201420354610.7U CN201420354610U CN204128569U CN 204128569 U CN204128569 U CN 204128569U CN 201420354610 U CN201420354610 U CN 201420354610U CN 204128569 U CN204128569 U CN 204128569U
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- Prior art keywords
- magnet
- sensor
- housing
- integral
- crankshaft position
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- Expired - Fee Related
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- 238000000034 method Methods 0.000 claims description 4
- 239000013536 elastomeric material Substances 0.000 claims description 3
- 238000001746 injection moulding Methods 0.000 claims description 3
- 238000005476 soldering Methods 0.000 claims description 3
- 239000000243 solution Substances 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 206010016256 fatigue Diseases 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
A kind of integral one-piece crankshaft position transducer of the present utility model, comprise housing and sensor framework, sensor framework is placed in housing, the first magnet and the terminal being wound with coil is injected with in sensor framework, magnet assembly is adopted to replace described first magnet, magnet assembly comprises the second magnet that volume is less than described first magnet, and the second magnet bottom is provided with conducting magnet core, and top is provided with compensation conducting magnet core.Relative to prior art, reduction sensor internal magnet volume can reduce magnet price to be affected sensor.Increase a conducting magnet core at the magnet back reduced, thus ensure that the output performance of sensor meets vehicle-mounted computer requirement.Conducting magnet core compares magnet, low price, is easy to processing, greatly reduces the cost of sensor.
Description
Technical field
The utility model relates to a kind of crankshaft position sensor, particularly a kind of integral one-piece crankshaft position transducer.
Background technology
Crankshaft position sensor gathers automobile engine crankshaft angle of rotation and engine rotational speed signal, and input control unit of engine, to determine time of ignition and oil injection time.Crankshaft position sensor has two kinds of job categories, and one is Hall type crankshaft position sensor, and another kind is magnetic inductive crankshaft position sensor.Hall type crankshaft position sensor cost is higher, is generally applied in luxury car; Magnetoelectric sensor utilizes electromagnetic induction principle, by the sensor that input motion velocity transformation becomes induced potential to export.It does not need accessory power supply, and just the mechanical energy of measurand can be converted to the electric signal being easy to measure, stable performance, never wornout, low price, is widely used in automobile crane velocity measuring.
Sensors with auxiliary electrode is made up of magnet, inductive coil, conducting magnet core, shielding stube cable and insulation crust usually.There is following shortcoming in sensor in the market:
1. the ndfeb magnet price owing to adopting limits by rare earth resources, and price volalility is comparatively large, causes magneto electric type crankshaft position sensor overall price to fluctuate larger.
2. shielding stube cable plug needs on car load rigid support fixing.
3. shaping with skeleton hot riveting after housing injection mo(u)lding, and non-immediate is injected on skeleton, produces rejection rate low.
Utility model content
For solving the problem, provide a kind of integral one-piece crankshaft position transducer.
The purpose of this utility model realizes in the following manner:
A kind of integral one-piece crankshaft position transducer of the present utility model, comprise housing and sensor framework, described sensor framework is placed in housing, the first magnet and terminal is injected with in described sensor framework, coil winding is connected with terminal by soldering in skeleton bottom, and adopt magnet assembly to replace described first magnet, described magnet assembly comprises the second magnet that volume is less than described first magnet, described second magnet bottom is provided with conducting magnet core, and top is provided with compensation conducting magnet core.
Described housing and sensor framework seam crossing are surrounded with the first inner seal ring; Described conducting magnet core bottom and housing junction are surrounded with the second inner seal ring; Injection moulding seal groove on described housing, exterior seal ring is arranged in groove.
Described O-ring seal is that elastomeric material is made.
Described sensor framework and housing adopt hot riveting technique to weld.
Described sensor framework is injected with plug.
Relative to prior art, the utility model has following beneficial effect: ensureing under the prerequisite that sensor output voltage requires, reduction sensor internal magnet volume can reduce magnet price to be affected sensor.When magnet volume reduces, increase a conducting magnet core at magnet back, thus ensure that the output performance of sensor meets vehicle-mounted computer requirement.Conducting magnet core compares magnet, low price, is easy to processing, greatly reduces the cost of sensor.
Accompanying drawing explanation
Fig. 1 is detonation configuration schematic diagram of the present utility model;
Fig. 2 is diagrammatic cross-section of the present utility model;
In figure, 1, sensor framework; 2, housing; 3, the second magnet; 4, conducting magnet core; 5, conducting magnet core is compensated; 6, terminal; 7, the first inner seal ring; 8, the second inner seal ring; 9, exterior seal ring; 10, coil; 11, plug.
Embodiment
As shown in Figure 1, a kind of integral one-piece crankshaft position transducer, comprise housing 2 and sensor framework 1, sensor framework 1 is placed in housing 2, is injected with the first magnet and terminal 6 in sensor framework 1, and coil 10 is wrapped in skeleton bottom and is connected with terminal 6 by soldering, magnet assembly replaces described first magnet, magnet assembly comprises the second magnet 3, second magnet 3 bottom that volume is less than described first magnet and is provided with conducting magnet core 4, and top is provided with and compensates conducting magnet core 5.
As shown in Figures 1 and 2, O-ring seal comprises inner seal ring and exterior seal ring 9, and inner seal ring comprises the first inner seal ring 7 and the second inner seal ring 8; First inner seal ring 7 is looped around sensor framework 1 and housing 2 seam crossing; Second inner seal ring 8 is looped around the seam crossing of conducting magnet core 4 bottom and housing; Injection moulding seal groove on housing, exterior seal ring 9 is arranged in groove.O-ring seal can completely cut off air, stops coil oxidation, the serviceable life of extension coil; Be fixed due in the hole that crankshaft sensor needs insertion engine to arrange, the aperture of engine is slightly larger than diameter of the housing, housing and engine hole directly contact and there will be a seam, this seam can not completely cut off outside air completely and enter engine, therefore, an O-ring seal is set in the junction in housing and engine hole, engine interior and outside air can well be completely cut off.O-ring seal is that elastomeric material is made.Housing 2 outside weld is connected to plug 11.Adopt one-piece construction, plug and sensor stand combine, and remove shielding stube cable, cost-saving, and do not need to arrange that rigid support fixes plug on car load, avoid cable and contact the potential safety hazard of burning and bringing with high temperature place in car.
Sensor framework 1 and housing 2 adopt hot riveting technique to weld, and relative to integral molded plastic, ratio of briquetting is high, and defect rate is low.
Set forth a lot of detail in the above description so that fully understand the utility model.But above description is only preferred embodiment of the present utility model, the utility model can be much different from alternate manner described here to implement, and therefore the utility model is not by the disclosed concrete restriction implemented above.Any those skilled in the art are not departing under technical solutions of the utility model ambit simultaneously, the Method and Technology content of above-mentioned announcement all can be utilized to make many possible variations and modification to technical solutions of the utility model, or be revised as the Equivalent embodiments of equivalent variations.Every content not departing from technical solutions of the utility model, according to technical spirit of the present utility model to any simple modification made for any of the above embodiments, equivalent variations and modification, all still belongs in the scope of technical solutions of the utility model protection.
Claims (5)
1. an integral one-piece crankshaft position transducer, comprise housing (2) and sensor framework (1), described sensor framework (1) is placed in housing (2), the first magnet and terminal (6) is injected with in described sensor framework (1), coil (10) is wrapped in skeleton bottom and is connected with terminal (6) by soldering, it is characterized in that: replace described first magnet with magnet assembly, described magnet assembly comprises the second magnet (3) that volume is less than described first magnet, described second magnet (3) bottom is provided with conducting magnet core (4), top is provided with and compensates conducting magnet core (5).
2. integral one-piece crankshaft position transducer according to claim 1, is characterized in that: described housing (2) and sensor framework (1) seam crossing are surrounded with the first inner seal ring (7); Described conducting magnet core (4) bottom and housing (2) seam crossing are surrounded with the second inner seal ring (8); The upper injection moulding seal groove of described housing (2), exterior seal ring (9) is arranged in groove.
3. integral one-piece crankshaft position transducer according to claim 2, is characterized in that: described O-ring seal is that elastomeric material is made.
4. integral one-piece crankshaft position transducer according to claim 1, is characterized in that: described sensor framework (1) adopts hot riveting technique to weld with housing (2).
5. integral one-piece crankshaft position transducer according to claim 1, is characterized in that: described sensor framework (1) is injected with plug (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420354610.7U CN204128569U (en) | 2014-06-30 | 2014-06-30 | A kind of integral one-piece crankshaft position transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420354610.7U CN204128569U (en) | 2014-06-30 | 2014-06-30 | A kind of integral one-piece crankshaft position transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204128569U true CN204128569U (en) | 2015-01-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420354610.7U Expired - Fee Related CN204128569U (en) | 2014-06-30 | 2014-06-30 | A kind of integral one-piece crankshaft position transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204128569U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106197508A (en) * | 2016-08-30 | 2016-12-07 | 宁波市鄞州永林电子电器有限公司 | A kind of modified model engine sensor |
| CN107328428A (en) * | 2017-06-07 | 2017-11-07 | 常州普宸电子有限公司 | Electromagnetic induction sensor and its processing method |
-
2014
- 2014-06-30 CN CN201420354610.7U patent/CN204128569U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106197508A (en) * | 2016-08-30 | 2016-12-07 | 宁波市鄞州永林电子电器有限公司 | A kind of modified model engine sensor |
| CN107328428A (en) * | 2017-06-07 | 2017-11-07 | 常州普宸电子有限公司 | Electromagnetic induction sensor and its processing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150128 |