CN203615955U - Crankshaft position sensing device - Google Patents
Crankshaft position sensing device Download PDFInfo
- Publication number
- CN203615955U CN203615955U CN201320854053.0U CN201320854053U CN203615955U CN 203615955 U CN203615955 U CN 203615955U CN 201320854053 U CN201320854053 U CN 201320854053U CN 203615955 U CN203615955 U CN 203615955U
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- CN
- China
- Prior art keywords
- housing
- iron core
- sensing device
- crankshaft position
- position sensing
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- 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 - Fee Related
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Abstract
The utility model discloses a crankshaft position sensing device. The device comprises a housing, a housing cover, an iron core, a permanent magnet, a coil assembly sleeving outside the iron core and the permanent magnet, a wiring harness assembly connected with the coil assembly, and an epoxy resin body filled in the housing, wherein the iron core is integrally disposed inside the housing, and the iron core and the housing are in an integral structure formed through integral injection moulding. According to the crankshaft position sensing device provided by the utility model, the iron core and the housing are in an integrally formed through injection moulding, and the iron core is fully disposed inside the housing, and water vapor cannot enter into the housing even when gaps are generated between the iron core and the housing during usage, so the crankshaft position sensing device is excellent in waterproof performance, and high in working stability and reliability; and during manufacture of the sensing device, the iron core and the housing only need to be integrally formed through one injection moulding, tools, moulds and equipment invested into the production process are few, and thus the production costs are low.
Description
Technical field
The utility model relates to a kind of sensor, particularly a kind of crankshaft position sensor.
Background technology
Crankshaft position sensor (Crankshaft Position Sensor, CKPS or CKP) is also referred to as engine speed sensor.The function of crankshaft position sensor is the position signalling that gathers distribution bent axle, and inputs ECU, so that ECU identification cylinder compression top center, thereby carry out order oil spout control, time of ignition control and detonation control.In addition when, crankshaft-position signal is also for engine start, identify time of ignition for the first time.Because which cylinder piston crankshaft position sensor can identify be about to arrive top dead centre, so be called again cylinder identification sensor.
The stability of crankshaft position sensor output signal and reliability and sensor water-proof performance have direct relation, existing sensor water-proof performance mainly guarantees by epoxy resin encapsulated, but because the iron core of sensor is different with shell material, in use procedure between iron core and housing easily because there is gap in temperature shock, sensor water-proof performance is reduced, affect the serviceability of sensor.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of crankshaft position sensing device, to improve the water proofing property performance of crankshaft sensor in prior art.
The utility model crankshaft position sensing device, comprise housing, case lid, iron core, permanent magnet, be enclosed within iron core with coil block, the wire harness assembly being connected with coil block outside permanent magnet and be filled in the epoxy resin body in housing, described iron core entirety is positioned at housing, and iron core and housing are integrated the monolithic construction of injection mo(u)lding.
Further, described wire harness assembly and coil block are welded to connect.
Further, the embedding of described epoxy resin body is in housing, and epoxy resin body is wrapped in outside iron core, permanent magnet and coil block.
Further, described case lid is connected on housing by supersonic welding.
The beneficial effects of the utility model:
1, the utility model crankshaft position sensing device, because iron core and housing are one-body molded by Shooting Technique, and iron core is positioned at housing completely, even if in use produce gap between iron core and housing, steam can not enter enclosure interior, therefore the water resistance of this crankshaft position sensing device is good, and job stability and reliability are high.
2, the utility model crankshaft position sensing device, it is by one-body molded by Shooting Technique to iron core and housing, and only carries out an injection moulding, and the frock dropping in production run, mould and equipment are less, and production cost is low.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model crankshaft position sensing device.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
As shown in the figure, the present embodiment crankshaft position sensing device, comprise housing 1, case lid 2, iron core 3, permanent magnet 4, be enclosed within iron core 3 with coil block 5, the wire harness assembly 6 being connected with coil block 5 outside permanent magnet 4 and be filled in the epoxy resin body 7 in housing 1, described iron core 3 entirety are positioned at housing 1, and iron core 3 and housing 1 are integrated the monolithic construction of injection mo(u)lding.
The present embodiment crankshaft position sensing device, because iron core 3 and housing 1 is one-body molded by Shooting Technique, and iron core 3 is positioned at housing completely, even if in use produce gap between iron core and housing, steam can not enter enclosure interior, therefore the water resistance of this crankshaft position sensing device is good, and job stability and reliability are high.This crankshaft position sensing device is by one-body molded by Shooting Technique to iron core 3 and housing 1 simultaneously, and only carries out an injection moulding, and the frock dropping in production run, mould and equipment are less, and production cost is low.
As the improvement to the present embodiment, described wire harness assembly 6 and coil block 5 are welded to connect, and connection reliability is good.
As the improvement to the present embodiment, described epoxy resin body 7 embeddings are in housing 1, and epoxy resin body 7 is wrapped in outside iron core 3, permanent magnet 4 and coil block 5, can eliminate the gap between housing 1 and iron core 3, permanent magnet 4 and coil block 5 completely by dosing technology, prevent that steam from entering sensor internal, water resistance is good.
As the improvement to the present embodiment, described case lid 2 is connected on housing 1 by supersonic welding, and welding back casing lid 2 is as a whole with 1 one-tenth of housing, is connected firmly, and can not become flexible separation in use procedure.
Finally explanation is, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (4)
1. a crankshaft position sensing device, comprise housing, case lid, iron core, permanent magnet, be enclosed within iron core with coil block, the wire harness assembly being connected with coil block outside permanent magnet and be filled in the epoxy resin body in housing, it is characterized in that: described iron core entirety is positioned at housing, and iron core and housing are integrated the monolithic construction of injection mo(u)lding.
2. crankshaft position sensing device according to claim 1, is characterized in that: described wire harness assembly and coil block are welded to connect.
3. crankshaft position sensing device according to claim 1, is characterized in that: the embedding of described epoxy resin body is in housing, and epoxy resin body is wrapped in outside iron core, permanent magnet and coil block.
4. crankshaft position sensing device according to claim 1, is characterized in that: described case lid is connected on housing by supersonic welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320854053.0U CN203615955U (en) | 2013-12-23 | 2013-12-23 | Crankshaft position sensing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320854053.0U CN203615955U (en) | 2013-12-23 | 2013-12-23 | Crankshaft position sensing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203615955U true CN203615955U (en) | 2014-05-28 |
Family
ID=50768589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320854053.0U Expired - Fee Related CN203615955U (en) | 2013-12-23 | 2013-12-23 | Crankshaft position sensing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203615955U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103674099A (en) * | 2013-12-23 | 2014-03-26 | 重庆集诚汽车电子有限责任公司 | Crankshaft position sensing device and manufacturing method thereof |
-
2013
- 2013-12-23 CN CN201320854053.0U patent/CN203615955U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103674099A (en) * | 2013-12-23 | 2014-03-26 | 重庆集诚汽车电子有限责任公司 | Crankshaft position sensing device and manufacturing method thereof |
| CN103674099B (en) * | 2013-12-23 | 2016-04-13 | 重庆集诚汽车电子有限责任公司 | Crankshaft position sensing device and manufacture method thereof |
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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 |
Granted publication date: 20140528 Termination date: 20181223 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |