CN203688573U - Revolution speed sensor - Google Patents
Revolution speed sensor Download PDFInfo
- Publication number
- CN203688573U CN203688573U CN201320766615.6U CN201320766615U CN203688573U CN 203688573 U CN203688573 U CN 203688573U CN 201320766615 U CN201320766615 U CN 201320766615U CN 203688573 U CN203688573 U CN 203688573U
- Authority
- CN
- China
- Prior art keywords
- assembly
- hall element
- sensor
- measuring mechanism
- seal ring
- 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
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- 238000001746 injection moulding Methods 0.000 claims abstract description 8
- 239000000523 sample Substances 0.000 claims description 8
- 230000007797 corrosion Effects 0.000 abstract description 6
- 238000005260 corrosion Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 6
- 239000002184 metal Substances 0.000 abstract description 3
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 238000004806 packaging method and process Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 210000003298 dental enamel Anatomy 0.000 description 2
- 238000009713 electroplating Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 150000002739 metals Chemical group 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
Images
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- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
The title of the utility model is a revolution speed sensor, and the utility model belongs to the technical field of electronic velocity sensors. The sensor mainly solves problems that integrated packaging of an existing metal housing is high in cost, complex in assembling process, and poor in corrosion resistance. The sensor is mainly characterized by comprising a housing assembly, a terminal assembly, an insert, a circuit board, a Hall element, a small O-shaped seal ring, and a large O-shaped seal ring. The housing assembly is formed by performing injection molding on the insert through a mould. The circuit board is welded on the terminal assembly. The Hall element is assembled on the terminal assembly. The Hall element and the circuit board are welded, forming a measuring mechanism assembly. The small O-shaped seal ring is assembled on the measuring mechanism assembly and is in the housing assembly. The small O-shaped seal ring and the housing assembly form a main body assembly through injection molding. The sensor is characterized by good corrosion resistance, not easy damaged appearance, low cost, and good vibration resistance capability. The sensor is mainly used to measure camshaft positions of vehicle motor and crandshaft speed above Europe III standards.
Description
Technical field
The utility model belongs to magnetoelectric velocity transducer technical field, is specifically related to a kind of for measuring more than Europe three emission standards camshaft of car engine position and the sensor of crankshaft speed.
Background technology
At present, the overall package of the magnetoelectric speed sensor in motor car engine generally adopts the mode of metal shell to encapsulate, and its weak point is that the cost of metal is high, work flow is grown (needing machining, electroplating processes), outward appearance easy damaged, corrosion-resistant etc.Conventional magnetoelectric velocity transducer comprises cover, weldering circle, housing, hexagonal nut, housing assembly, pole plate, magnet steel, pole shoe, coil former, enamel covered wire, coil assembly, inserted sheet, terminal assembly, packing ring.Wherein, housing assembly is by covering, weld circle, housing and hexagonal nut by ratio-frequency welding moulding, coil assembly is by coil former, enamel covered wire coiling moulding, terminal assembly passes through mold injection molding by inserted sheet, main body assembly passes through welding, impact briquetting by housing assembly, coil assembly, pole plate, magnet steel, pole shoe and terminal assembly, its weak point is that assembly technology difficulty is large, flow process is loaded down with trivial details, cost high (part needing is many).
Summary of the invention
It is that plastic injection piece carrys out alternative metals part that the purpose of this utility model provides a kind of outward appearance (enclosing) part for above-mentioned weak point exactly, utilize back of the body magnetic Hall element to replace enameled wire, magnet steel, pole shoe and coil former, have good corrosion resistance, outward appearance not easy damaged, cost is low, assembly technology is simple, and the amplitude of output signal is not assembled air gap and frequency influence, and can identify the speed probe of zero rotating speed.
Technical solution of the present utility model is: a kind of speed probe, comprise cage assembly, terminal assembly, and it is characterized in that: also comprise inserts, wiring board, Hall element, little O RunddichtringO and large O RunddichtringO; Described cage assembly is that inserts passes through mold injection molding; Described wiring board is welded on terminal assembly, and Hall element is assemblied on terminal assembly, and Hall element and wiring board weld together, and forms measuring mechanism assembly; Described little O RunddichtringO is assemblied on measuring mechanism assembly, is placed in cage assembly, forms main body assembly with cage assembly by injection moulding; Described large O RunddichtringO is assemblied on main body assembly.
Between cage assembly described in technical solution of the present utility model and measuring mechanism assembly, tank has HT1101 two-component insulating vibrationproof gel.
Hall element described in technical solution of the present utility model adopts two difference Hall elements, can realize the slow-speed of revolution and the identification of zero rotating speed.
The utility model, because structural member adopts integral plastics moulding, has been abandoned traditional metalwork, has overcome the deficiency that metalwork cost is high, work flow is grown (machine work, electroplating processes), outward appearance easy damaged, corrosion-resistant.By adopting Shooting Technique at sensor internal, overcome that assembly technology difficulty is large, flow process is loaded down with trivial details in addition, the deficiency of cost high (part needing is many).The utlity model has not easy damaged, cost is low and vibration resistance ability is strong feature of good corrosion resistance, outward appearance.The utility model can be identified the slow-speed of revolution and the identification of zero rotating speed, has overcome the defect of traditional speed probe threshold voltage, and the utility model is mainly used in measuring camshaft of car engine position and crankshaft speed more than Europe three emission standards.
brief description of the drawings
Fig. 1 is contour structures schematic diagram of the present utility model.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the vertical view of Fig. 1.
Fig. 4 is terminal assembly structure diagrammatic cross-section of the present utility model.
Fig. 5 is the cage assembly structural profile schematic diagram of utility model.
Fig. 6 is the utility model structural profile schematic diagram.
Fig. 7 is the inner structure measuring mechanism assembly diagrammatic cross-section of Fig. 6.
Embodiment
As shown in Figures 1 to 6.The utility model speed probe is made up of inserted sheet 1, little O RunddichtringO 2, wiring board 3, large O RunddichtringO 4, Hall element 5 and inserts 6.Wherein, inserted sheet 1 becomes terminal assembly 7 by mold injection, and inserts 6 becomes cage assembly 8 by mold injection, and part integral surface adopts the sub-light processing of sandblast, black.Hall element adopts two difference Hall elements, can realize the slow-speed of revolution and the identification of zero rotating speed.Output signal low and high level is not subject to the impact of rotating speed, the number of teeth and fit-up gap.
As shown in Figure 7, terminal assembly 7, wiring board 3, little O RunddichtringO 2 and Hall element 5 form measuring mechanism 9.Wiring board 3 is welded on terminal assembly 7, and Hall element 5 is assemblied on terminal assembly 7, and Hall element 5 and wiring board 3 weld together, and forms measuring mechanism assembly.Little O RunddichtringO 2 is assemblied on measuring mechanism assembly, at the inner HT1101 two-component insulating vibrationproof gel glue that injects of cage assembly, packs into after measuring mechanism assembly, forms main body assembly 10 by injection moulding, forms the utility model after assembling large O RunddichtringO.
Claims (3)
1. a speed probe, comprises cage assembly (8), measuring mechanism assembly (9), it is characterized in that: also comprise inserts (6), wiring board (3), Hall element (5), little O RunddichtringO (2) and large O RunddichtringO (4); Described cage assembly (8) passes through mold injection molding for inserts; Described wiring board is welded on terminal assembly, and Hall element is assemblied on terminal assembly, and Hall element and wiring board weld together, and forms measuring mechanism assembly (9); Described little O RunddichtringO is assemblied on measuring mechanism assembly, is placed in cage assembly, forms main body assembly (10) with cage assembly by injection moulding; Described large O RunddichtringO (4) is assemblied on main body assembly (10).
2. a kind of speed probe according to claim 1, is characterized in that: between described cage assembly and measuring mechanism assembly, tank has HT1101 two-component insulating vibrationproof gel.
3. a kind of speed probe according to claim 1 and 2, is characterized in that: described Hall element adopts two difference Hall elements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320766615.6U CN203688573U (en) | 2013-11-29 | 2013-11-29 | Revolution speed sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320766615.6U CN203688573U (en) | 2013-11-29 | 2013-11-29 | Revolution speed sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203688573U true CN203688573U (en) | 2014-07-02 |
Family
ID=51010458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320766615.6U Expired - Lifetime CN203688573U (en) | 2013-11-29 | 2013-11-29 | Revolution speed sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203688573U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104237550A (en) * | 2014-09-30 | 2014-12-24 | 永济新时速电机电器有限责任公司 | Assembled side-outlet flexible-connection velocity sensor |
| CN108061561A (en) * | 2016-11-09 | 2018-05-22 | 大陆汽车电子（连云港）有限公司 | CMPS Camshaft Position Sensor and vehicle |
-
2013
- 2013-11-29 CN CN201320766615.6U patent/CN203688573U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104237550A (en) * | 2014-09-30 | 2014-12-24 | 永济新时速电机电器有限责任公司 | Assembled side-outlet flexible-connection velocity sensor |
| CN104237550B (en) * | 2014-09-30 | 2017-01-11 | 永济新时速电机电器有限责任公司 | Assembled side-outlet flexible-connection velocity sensor |
| CN108061561A (en) * | 2016-11-09 | 2018-05-22 | 大陆汽车电子（连云港）有限公司 | CMPS Camshaft Position Sensor and vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 441000 Jiangshan South Road Venture Center, Xiangyang High-tech Zone, Hubei Province Patentee after: Dongfeng Power Drive System Co., Ltd. Address before: 441001 No. 227 Daqing East Road, Xiangfan City, Hubei Province Patentee before: DONGFENG AUTOMOBILE ELECTRONICS CO., LTD. |