CN202770450U - Odometer sensor - Google Patents
Odometer sensor Download PDFInfo
- Publication number
- CN202770450U CN202770450U CN 201220310728 CN201220310728U CN202770450U CN 202770450 U CN202770450 U CN 202770450U CN 201220310728 CN201220310728 CN 201220310728 CN 201220310728 U CN201220310728 U CN 201220310728U CN 202770450 U CN202770450 U CN 202770450U
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- shell
- housing
- outside
- circuit board
- 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 - Fee Related
Links
Abstract
The utility model relates to and belongs to the technical field of car mileage measurement, in particular to an odometer sensor comprising an integrated shell, wherein a rotating shaft is arranged at the upper part in the shell, both the outer side and the bottom end of the rotating shaft are provided with bearings, magnetic steel is arranged on the outer side of the rotating shaft and provided with a Hall element; a circuit board is arranged at the bottom of the Hall element inside the shell and is connected with a lead, and the lead is extended out of a cavity at the bottom of the shell and connected with a terminal; and an annular boss is arranged at the upper part inside the shell, and the rotating shaft is provided with an annular groove matched with the annular boss. The odometer sensor has the advantages as follows: 1, the shell is integrated, so that the joint strength is improved greatly; 2, the middle and the bottom of the rotating shaft are provided with the two bearings to avoid radial motion of the rotating shaft in the rotating process so as to effectively improve the measurement precision; and 3, the boss and the groove are arranged on the matched sides of the rotating shaft and the shell to further prevent the radial motion of the rotating shaft under a bad working condition.
Description
Technical field
The utility model relates to and belongs to the speedometer for automobile field of measuring technique, specifically relates to a kind of kilometer sensor.
Background technology
Mainly there is following defective in kilometer sensor of the prior art:
1, housing adopts the plug-in step-by-step design, and strength of joint is lower.
2, radial-play easily occurs in rotating shaft in rotation process, causes measuring accuracy to reduce.
The utility model content
In order to solve the technical matters that exists in the prior art, the purpose of this utility model is to provide a kind of kilometer sensor of simple in structure, function admirable.
The technical solution adopted in the utility model is as follows:
Kilometer sensor is characterized in that, comprises integral housing,
The housing internal upper part is provided with rotating shaft, and the rotating shaft outside and bottom are equipped with bearing, and the outside of rotating shaft is provided with magnet steel, and the outside of magnet steel is provided with the Hall components and parts;
The bottom of Hall components and parts is provided with circuit board in the housing, and circuit board connecting lead wire, lead-in wire are stretched out by the housing bottom cavity and connect connection terminal;
The housing internal upper part is provided with annular boss, and rotating shaft is provided with the annular groove that matches with annular boss.
Comparatively perfect is that the outside of described housing is provided with several annular grooves.
Further, also be provided with end cap between described circuit board and the housing bottom.
The utility model kilometer sensor, compared with prior art, its beneficial effect shows:
1, housing is monoblock type, and strength of joint is promoted by a relatively large margin.
2, at middle part and two bearings of bottom design of rotating shaft, avoided rotating shaft that radial-play occurs when rotated, thus the Effective Raise measuring accuracy.
3, in order further to prevent bad working environments lower rotary shaft generation radial-play, at registration interface designs annular boss and the groove structure of rotating shaft and housing.
4, product structure is simple, cheap, and adaptability is wider.
Description of drawings
For the ease of it will be appreciated by those skilled in the art that below in conjunction with accompanying drawing utility model is further described.
Fig. 1 is structural representation of the present utility model.
Embodiment
See also Fig. 1, kilometer sensor comprises integral housing 2, and housing 2 internal upper parts are provided with rotating shaft 1, and rotating shaft 1 outside is provided with bearing 3, and the bottom of rotating shaft 1 is provided with bearing 10.
The outside of rotating shaft 1 is provided with magnet steel 5, and the outside of magnet steel 5 is provided with Hall components and parts 6, and this is to adopt the principle of sensor measuring and calculating mileage in the prior art to design.
Simultaneously, the bottom of housing 2 interior Hall components and parts 6 is provided with circuit board 8, and circuit board 8 connecting lead wires 9, lead-in wire 9 are stretched out by housing 2 bottom cavities and connect connection terminal, with the signal of output measurement.In addition, also be provided with end cap 7 between circuit board 8 and housing 2 bottoms.
Housing 2 internal upper parts are provided with annular boss 11, and rotating shaft 1 is provided with the annular groove that matches with annular boss 11.
In order to make things convenient for the installation of sensor, be provided with several annular grooves 4 in the outside of housing 2.
Above content only is to the utility model structure example and explanation; under those skilled in the art described specific embodiment is made various modifications or replenish or adopt similar mode to substitute; only otherwise depart from the structure of utility model or surmount this scope as defined in the claims, all should belong to protection domain of the present utility model.
Claims (3)
1. kilometer sensor is characterized in that, comprises integral housing,
The housing internal upper part is provided with rotating shaft, and the rotating shaft outside and bottom are equipped with bearing, and the outside of rotating shaft is provided with magnet steel, and the outside of magnet steel is provided with the Hall components and parts;
The bottom of Hall components and parts is provided with circuit board in the housing, and circuit board connecting lead wire, lead-in wire are stretched out by the housing bottom cavity and connect connection terminal;
The housing internal upper part is provided with annular boss, and rotating shaft is provided with the annular groove that matches with annular boss.
2. kilometer sensor according to claim 1 is characterized in that, the outside of described housing is provided with several annular grooves.
3. kilometer sensor according to claim 1 is characterized in that, also is provided with end cap between described circuit board and the housing bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220310728 CN202770450U (en) | 2012-06-29 | 2012-06-29 | Odometer sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220310728 CN202770450U (en) | 2012-06-29 | 2012-06-29 | Odometer sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202770450U true CN202770450U (en) | 2013-03-06 |
Family
ID=47777016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220310728 Expired - Fee Related CN202770450U (en) | 2012-06-29 | 2012-06-29 | Odometer sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202770450U (en) |
-
2012
- 2012-06-29 CN CN 201220310728 patent/CN202770450U/en not_active Expired - Fee Related
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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: 20130306 Termination date: 20140629 |
|
| EXPY | Termination of patent right or utility model |