CN104849486A - Rotating speed sensor - Google Patents
Rotating speed sensor Download PDFInfo
- Publication number
- CN104849486A CN104849486A CN201410679515.9A CN201410679515A CN104849486A CN 104849486 A CN104849486 A CN 104849486A CN 201410679515 A CN201410679515 A CN 201410679515A CN 104849486 A CN104849486 A CN 104849486A
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- China
- Prior art keywords
- stepped hole
- housing
- sleeve
- circuit board
- epoxy resin
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- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
The invention discloses a rotating speed sensor, comprising a housing (1); a segment of external threads (11) are arranged on the outside of a left end of the housing (1); a left stepped hole (2), a middle stepped hole (3) and a right stepped hole (4) are axially arranged in the housing (1); an epoxy resin sleeve (21) is embedded in the left stepped hole (2); the epoxy resin sleeve (21) is internally provided with a Hall element (22) and a neodymium boron iron magnetic steel (23); the middle stepped hole (3) is internally provided with a printed circuit board combination (31), a sleeve (32) and a mounting sleeve (33); the right stepped hole (4) is also internally provided with an aviation plug (41). The rotating speed sensor is provided with the external threads, and the housing is internally provided with the epoxy resin sleeve, allowing a relevant circuit board to be arranged in a relatively sealed space; the housing is prepared by stainless steel materials, and possesses the functions of dust prevention and corrosion protection; the rotating speed sensor has a reasonable and compact structure, is convenient to assemble and disassemble, and can prolong the service life of a product.
Description
Technical field
The present invention relates to the speed probe for monitor vehicle engine or vehicle wheel rotational speed.
Background technology
At present, ordinary rotational speed inductor for monitoring all types of motor vehicle engine rotating speed or Vehicle Speed generally adopts mechanical type sensing arrangement, mostly correspondence position due to motor vehicles is to adopt gear drive, ordinary rotational speed sensor is easily mixed into impurity and dust, the wearing and tearing of associated components can be increased, and cause parts to damage, not only damage the serviceable life of section product, also can affect the judgement of testing the speed with driver, drawback is produced to traffic safety.
Summary of the invention
The technical problem to be solved in the present invention there is provided a kind ofly to be convenient to install and can the speed probe of preventing dust corrosion.
Technical scheme of the present invention is as follows:
A kind of speed probe, comprise housing, one section of external thread is provided with in the outside of described housing left end, step-like through hole is provided with vertically in described housing, described step-like through hole is made up of left stepped hole, middle stepped hole and right stepped hole, in described left stepped hole, be embedded with epoxy resin cover, the left end in described epoxy resin cover is provided with Hall element and Nd-Fe-B magnet steel from left to right successively; Printed circuit board combination, sleeve and installation sleeve is provided with from left to right successively in described middle stepped hole, described printed circuit board combination wears left into epoxy resin cover and is connected with neodymium ferro-boron magnet steel, the profile of described installation sleeve is left small and right large step-like, the left end of this installation sleeve is inserted in middle stepped hole, the step surface of right-hand member with abut at the bottom of the hole of right stepped hole fixing; In described right stepped hole, be also provided with aviation plug, in described aviation plug, be provided with wire, described wire is fed through installation sleeve and sleeve left, and combines with printed circuit board and be communicated with.
Adopt above structure, epoxy resin cover is set in housing, not only high temperature resistantly also sealing function can be played, high temperature resistantly guarantee to arrange Hall element wherein and printed circuit board normally works, the sealing of epoxy resin cover can be dust-proof, avoid Hall element and printed circuit board to be subject to engine or pass the impurity effect of fast gear, the serviceable life of Hall element and printed circuit board can be extended; Installation sleeve and sleeve can the positions of fixing cord, and carry out spacing to the position of aviation plug, can prevent aviation plug from loosening, in order to avoid affect the stability tested the speed, simultaneously, speed circuit plate is arranged in epoxy resin cover, the space of relative closure that formed between housing and sleeve, also can avoid the impact of dust and introduced contaminants, extend the serviceable life of speed circuit plate; The external thread of hull outside is convenient to outside and is spirally connected fixing, avoids the performance affecting other parts during dismounting.
In order to save the space shared by installation site, simultaneously for the ease of being welded and fixed printed circuit board combination, and guarantee that printed circuit board combination does not interfere with other assembly and lost efficacy, as preferably, the left end of described sleeve is provided with breach, and the size that this breach and printed circuit board combine correspondence position is suitable.
For the ease of Received signal strength, as preferably, the left side wall thickness of housing described in source is 1mm.
In order to make the present invention play etch-proof effect, and can protect the security performance of each assembly better, as preferably, described housing is made up of stainless steel material.
Beneficial effect: the present invention is provided with external thread and is provided with epoxy resin cover in housing, the circuit board of being correlated with is made to be placed in comparatively closed space, housing adopts stainless steel material to make, the effect of good preventing dust corrosion can be played, compact conformation is reasonable, dismounting is convenient, can extend product serviceable life.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, the housing 1 etc. that the present invention is made up of stainless steel material forms, the left side wall thickness of described housing 1 is 1mm, one section of external thread 11 is provided with in the outside of described housing 1 left end, step-like through hole is provided with vertically in described housing 1, described step-like through hole is made up of left stepped hole 2, middle stepped hole 3 and right stepped hole 4, is embedded with epoxy resin cover 21 in described left stepped hole 2, is provided with Hall element 22 and Nd-Fe-B magnet steel 23 from left to right successively at the left end of described epoxy resin cover 21; Printed circuit board combination 31, sleeve 32 and installation sleeve 33 is provided with in described middle stepped hole 3, described printed circuit board combination 31 wears left into epoxy resin cover 21 and is connected with neodymium ferro-boron magnet steel 23, the left end of described sleeve 32 is provided with breach, this breach and printed circuit board combine 31, and to be welded and fixed the size of position suitable, the profile of described installation sleeve 33 is left small and right large step-like, the left end of this installation sleeve 33 is inserted in middle stepped hole 3, the step surface of right-hand member with abut at the bottom of the hole of right stepped hole 4 fixing; In described right stepped hole 4, be also provided with aviation plug 41, in described aviation plug 41, be provided with wire 42, described wire 42 is fed through installation sleeve 33 and sleeve 32 left, and combines 31 with printed circuit board and be communicated with.
Using method of the present invention is as follows:
As shown in Figure 1, the present invention is arranged on the correspondence position of motor vehicle engine or tire rotational speed monitoring, whirlpool gear drive combination (sign) of the left end alignment machine motor vehicle correspondence position of housing 1, turn signal source is received by Hall element 22, collect signal through Nd-Fe-B magnet steel 23 again and be sent to printed circuit board combination 31, be sent in aviation plug 41 through the wire 42 be connected in printed circuit board combination 31 again, and be ultimately delivered to signal output part (sign).
This wherein, the epoxy resin cover 21 arranged in housing 1, not only high temperature resistantly also sealing function can be played, high temperature resistantly guarantee to arrange Hall element 22 wherein and neodymium ferro-boron magnet steel 23 normally works, the sealing of epoxy resin cover 21 can be dust-proof, avoid Hall element 22 and neodymium ferro-boron magnet steel 23 to be subject to engine or to pass the impurity effect of fast gear, the serviceable life of Hall element 22 and neodymium ferro-boron magnet steel 23 can be extended; Installation sleeve 33 and sleeve 32 can the positions of fixing cord 42, and carry out spacing to the position of aviation plug 41, can prevent aviation plug from loosening, in order to avoid affect the stability tested the speed, meanwhile, printed circuit board combination 31 be arranged on epoxy resin cover 21, between housing 1 and sleeve 32 formed relative closure space in, wherein a part also wear epoxy resin cover 21 in, also can avoid the impact of dust and introduced contaminants, extend the serviceable life of printed circuit board combination 31.
In addition, the external thread 11 outside housing 1 is convenient to outside and is directly spirally connected fixing or is spirally connected with nut fixing, avoids the serviceability affecting other internal part during dismounting.
It is consistent with prior art that the present invention does not describe part, and therefore not to repeat here.
These are only embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every equivalent structure utilizing instructions of the present invention and accompanying drawing content to do, is directly or indirectly used in the technical field that other are relevant, all in like manner within scope of patent protection of the present invention.
Claims (4)
1. a speed probe, comprise housing (1), it is characterized in that: be provided with one section of external thread (11) in the outside of described housing (1) left end, step-like through hole is provided with vertically in described housing (1), described step-like through hole is made up of left stepped hole (2), middle stepped hole (3) and right stepped hole (4), in described left stepped hole (2), be embedded with epoxy resin cover (21), the left end in described epoxy resin cover (21) is provided with Hall element (22) and Nd-Fe-B magnet steel (23) from left to right successively; Printed circuit board combination (31), sleeve (32) and installation sleeve (33) is provided with from left to right successively in described middle stepped hole (3), described printed circuit board combination (31) wears left into epoxy resin cover (21) and is connected with neodymium ferro-boron magnet steel (23), the profile of described installation sleeve (33) is left small and right large step-like, the left end of this installation sleeve (33) is inserted in middle stepped hole (3), the step surface of right-hand member with abut at the bottom of the hole of right stepped hole (4) fixing; Aviation plug (41) is also provided with in described right stepped hole (4), wire (42) is provided with in described aviation plug (41), described wire (42) is fed through installation sleeve (33) and sleeve (32) left, and combines (31) with printed circuit board and be communicated with.
2. speed probe according to claim 1, is characterized in that: the left end of described sleeve (32) is provided with breach, and the size that this breach and printed circuit board combine (31) correspondence position is suitable.
3. speed probe according to claim 1, is characterized in that: the left side wall thickness of described housing (1) is 1mm.
4. speed probe according to claim 1, is characterized in that: described housing (1) is made up of stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410679515.9A CN104849486A (en) | 2014-11-24 | 2014-11-24 | Rotating speed sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410679515.9A CN104849486A (en) | 2014-11-24 | 2014-11-24 | Rotating speed sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104849486A true CN104849486A (en) | 2015-08-19 |
Family
ID=53849282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410679515.9A Pending CN104849486A (en) | 2014-11-24 | 2014-11-24 | Rotating speed sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104849486A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109283352A (en) * | 2018-11-14 | 2019-01-29 | 山西维达机械制造有限公司 | A kind of speed probe and its assembly method |
| CN110164730A (en) * | 2018-02-06 | 2019-08-23 | 靠博机电(太仓)有限公司 | A kind of dry spring canister and tongue tube packaging technology of flow switch |
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| JP2003139787A (en) * | 2001-10-30 | 2003-05-14 | Mitsuba Corp | Rotating speed sensor and magnetizing method of permanent magnet used in rotating speed sensor |
| CN201589782U (en) * | 2010-01-26 | 2010-09-22 | 上海黄河仪器仪表厂有限公司 | Rotation speed sensor of internal combustion engine |
| CN202025012U (en) * | 2011-04-08 | 2011-11-02 | 无锡隆盛科技有限公司 | Rotating speed sensor case |
| CN202230097U (en) * | 2011-08-23 | 2012-05-23 | 大连美天三有电子仪表有限公司 | Magneto-electric rotating speed sensor |
| CN102645548A (en) * | 2012-05-12 | 2012-08-22 | 中国兵器工业集团第七0研究所 | Magnetoelectricity revolution speed transducer |
| CN202661478U (en) * | 2012-04-20 | 2013-01-09 | 株洲电力机车电机修造有限公司 | Passive speed sensor |
| CN202770393U (en) * | 2012-09-27 | 2013-03-06 | 宁波市北仑机械电器有限公司 | Non-contact absolute value type angular displacement sensor |
| CN203053994U (en) * | 2013-01-11 | 2013-07-10 | 南京华敏电子有限公司 | Digital rotating speed sensor |
| CN103713150A (en) * | 2013-12-06 | 2014-04-09 | 中国北方发动机研究所(天津) | Lead wire type magnetoelectric revolution speed transducer |
| CN203616336U (en) * | 2013-12-04 | 2014-05-28 | 南京华敏电子有限公司 | Differential gear rotating-speed sensor |
| CN204188635U (en) * | 2014-11-24 | 2015-03-04 | 重庆斯凯力科技有限公司 | A kind of speed probe |
-
2014
- 2014-11-24 CN CN201410679515.9A patent/CN104849486A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003139787A (en) * | 2001-10-30 | 2003-05-14 | Mitsuba Corp | Rotating speed sensor and magnetizing method of permanent magnet used in rotating speed sensor |
| CN201589782U (en) * | 2010-01-26 | 2010-09-22 | 上海黄河仪器仪表厂有限公司 | Rotation speed sensor of internal combustion engine |
| CN202025012U (en) * | 2011-04-08 | 2011-11-02 | 无锡隆盛科技有限公司 | Rotating speed sensor case |
| CN202230097U (en) * | 2011-08-23 | 2012-05-23 | 大连美天三有电子仪表有限公司 | Magneto-electric rotating speed sensor |
| CN202661478U (en) * | 2012-04-20 | 2013-01-09 | 株洲电力机车电机修造有限公司 | Passive speed sensor |
| CN102645548A (en) * | 2012-05-12 | 2012-08-22 | 中国兵器工业集团第七0研究所 | Magnetoelectricity revolution speed transducer |
| CN202770393U (en) * | 2012-09-27 | 2013-03-06 | 宁波市北仑机械电器有限公司 | Non-contact absolute value type angular displacement sensor |
| CN203053994U (en) * | 2013-01-11 | 2013-07-10 | 南京华敏电子有限公司 | Digital rotating speed sensor |
| CN203616336U (en) * | 2013-12-04 | 2014-05-28 | 南京华敏电子有限公司 | Differential gear rotating-speed sensor |
| CN103713150A (en) * | 2013-12-06 | 2014-04-09 | 中国北方发动机研究所(天津) | Lead wire type magnetoelectric revolution speed transducer |
| CN204188635U (en) * | 2014-11-24 | 2015-03-04 | 重庆斯凯力科技有限公司 | A kind of speed probe |
Non-Patent Citations (3)
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| 李晓云等: "《环氧树脂在电子封装中的应用及发展方向》", 《电子元件与材料》 * |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110164730A (en) * | 2018-02-06 | 2019-08-23 | 靠博机电(太仓)有限公司 | A kind of dry spring canister and tongue tube packaging technology of flow switch |
| CN109283352A (en) * | 2018-11-14 | 2019-01-29 | 山西维达机械制造有限公司 | A kind of speed probe and its assembly method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150819 |