CN108828257A - A kind of motor-car velocity sensor - Google Patents
A kind of motor-car velocity sensor Download PDFInfo
- Publication number
- CN108828257A CN108828257A CN201811044871.8A CN201811044871A CN108828257A CN 108828257 A CN108828257 A CN 108828257A CN 201811044871 A CN201811044871 A CN 201811044871A CN 108828257 A CN108828257 A CN 108828257A
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- CN
- China
- Prior art keywords
- shell
- circuit board
- velocity sensor
- motor
- fixed
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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.)
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
- G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P1/00—Details of instruments
- G01P1/02—Housings
- G01P1/026—Housings for speed measuring devices, e.g. pulse generator
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Abstract
The present invention provides a kind of motor-car velocity sensors, including shell and connecting terminal on its interior, cold end terminal, connection circuit board, single cord and probe assembly, the shell is equipped with axially open, which is equipped with cover board, cover board and shell fixed seal connection；The connecting terminal is soldered on connection circuit board, and cold end terminal crimps external connecting cables, and is fixed on connecting terminal, and probe assembly and connection are connected with circuit board by single cord, and are fixed on shell.The monitoring of gearbox gear wheel speed under various particular surroundings can be applicable in.
Description
Technical field
The present invention relates to gearbox gear velocity measuring technique fields, particularly, are related to a kind of motor-car velocity sensor.
Background technique
Currently, the velocity sensor for monitoring EMU gearbox gear wheel speed exists in actual motion use process
Certain risk：First is that signal measurement is inaccurate, since interior of shell probe assembly is mainly fixed on the shell by insulating cement,
Under severe vibratory impulse environment, in fact it could happen that it is slight mobile, causes measuring signal inaccurate；And sensor internal connects
Cable is directly welded on circuit board, and weld cracking is easy to appear under high-speed cruising environment causes measuring signal inaccurate
Really.Second is that insulation performance is poor, and since its internal structure design space is limited, under extreme electromagnetic environment, product itself
Breakdown strength is not able to satisfy application requirement, in fact it could happen that high-voltage breakdown phenomenon and the case where lead to false alarm.These failure risks,
The safe operation order for having seriously affected EMU is badly in need of a kind of product of more reliable performance to substitute and use, to ensure motor-car
The safe and reliable operation of group.
Summary of the invention
It is an object of that present invention to provide a kind of motor-car velocity sensor, inadequate with solution measurement inaccuracy and safety
Technical problem.
To achieve the above object, the present invention provides a kind of motor-car velocity sensors, including shell and position are in the inner
Connecting terminal, cold end terminal, connection circuit board, single cord and the probe assembly in portion, the shell are equipped with axially open, should
Opening is equipped with cover board, cover board and shell fixed seal connection；The connecting terminal is soldered on connection circuit board, is cold-pressed end
Son crimping external connecting cables, and be fixed on connecting terminal, probe assembly and connection are connected with circuit board by single cord, and
It is fixed on shell.
Preferably, the connecting terminal is fence type connecting terminal.
Preferably, the velocity sensor further includes connection circuit board, connects printing electricity by small line footpath single cord
Road plate solves external 4 core, line footpath 2mm2Cable can not be directly welded at the technological difficulties on printed circuit board.Connect electricity consumption
Connecting terminal is welded on the plate of road, connecting terminal is equipped with the screw for compressing conducting wire, can bear huge torque, press securely
Tight conducting wire guarantees the contact area of electric wire, and every being individually completely fixed for electric wire enables velocity sensor to bear motor-car in high speed
The vibration generated in operational process, and thus the internal component of velocity sensor will not generate loosening.
Preferably, the shell is stainless steel material.
Preferably, the bottom of the shell is equipped with notch I, the encapsulating insulating cement at notch I, and the depth of notch I is further
Preferably 2~4mm.
Preferably, the cover board is fixedly connected with shell by several screws, and spacing is fixed, and is guaranteed in velocity sensor
Long-term use process in, cover board will not be because of too long generation bending deformation；The screw is more preferably stainless steel screw,
It is still more preferably 6 stainless steel screws, guarantees the dust and water protection performance of velocity sensor.
Preferably, the probe assembly and connection are fixedly attached on shell with circuit board by screw, guarantee that connection is used
Circuit board will not loosen in vibration and shock environment.
Preferably, gasket is equipped between the cover board and shell, screw sequentially passes through cover board and gasket is fixed to outside
Shell, gasket are more preferably rubber gasket.
It is further preferred that the mounting surface of the cover board and shell is processed into the notch II of installation gasket, one is formed
Formula seal cover board.
Preferably, the external connecting cables are drawn from one end of shell, and exit passes through waterproof connector lock sealing.Just
In installation, guarantee the security reliability of waterproof performance.
It is further preferred that the waterproof connector and exit are protected with heat-shrinkable T bush.
Preferably, the probe assembly include probe protective cover, printed circuit board, locating piece, Hall element and insulation every
Layer, printed circuit board are fixedly attached to shell, and locating piece, Hall element and interlayer insulating layer are fixed on probe by encapsulating insulating cement
In protective cover, probe protective cover is soldered to shell, further preferably laser welding, ensure that bonding strength, reduces difficult processing
Degree.
It is further preferred that the locating piece and Hall element are fixed by Kapton adhesive tape.
It is further preferred that the Hall element is bonded probe protective cover by interlayer insulating layer completely.Guarantee measuring signal
Accurate, stability.
It is further preferred that the printed circuit board is fixedly attached to shell by screw, it is still more preferably stainless
Steel screw is still more preferably 4 stainless steel screws.Guarantee that printed circuit board will not loosen in vibration and shock environment.
It is further preferred that the probe protective cover and the centerline of waterproof connector are on same axis.
It is further preferred that the inside of the probe protective cover opens up round notch III, locating piece, Hall element and insulation
Interlayer is all set in the notch III, and the radius of notch III is preferably 0.1~0.3mm.Guarantee that velocity sensor insulate in encapsulating
The adhesive property of insulating cement after glue also ensures that probe assembly all parts will not fall off under exceedingly odious service condition,
Lead to operation troubles.
Preferably, cold end terminal is fixed by screws on connecting terminal, and probe assembly and connection circuit board pass through spiral shell
Nail is fixed on shell, and the screw is more preferably stainless steel screw, is still more preferably 4 stainless steel screws.
The invention has the advantages that：
Motor-car velocity sensor of the invention is adopted and is screwed probe assembly (including printed circuit board), and circuit connects
It connects internal pass through and is segmented connection, be fixed on connecting terminal using cold end terminal crimped electric wire, then by cold end terminal, greatly mention
The high resistance to shock of sensor in use, effectivelying prevent single cord to shake in the process of running leads to weld cracking.
Probe protective cover ensure that probe assembly front end interlayer insulating layer and probe protective cover by the way of laser welding and cage connection
Concentricity, improve the accuracy of signal measurement.Cover top portion is fixed on the shell and single by gasket, cover board by screw
Strand further improves its degree of protection by Waterproof connector of cable lock sealing structure, and degree of protection is up to IP68 (1m water
Deep, for 24 hours, insulation performance does not reduce).Interior of shell opens up notch, in a limited space the interior air for improving circuit board and shell
Gap, so that sensor insulation performance further increases.Probe assembly front end locating piece, Hall element, interlayer insulating layer pass through filling
It seals insulating cement and forms integral type measuring circuit, after being screwed probe assembly, encapsulating insulating cement is improved in probe protective cover
The insulation of measuring cell and resistance to shock.It is various that these features enable motor-car provided by the invention to be applicable in velocity sensor
The monitoring of gearbox gear wheel speed under particular surroundings.
Other than objects, features and advantages described above, there are also other objects, features and advantages by the present invention.
Below with reference to figure, the present invention is described in further detail.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings：
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the partial sectional view of Fig. 1.
Fig. 4 is the partial enlarged view of Fig. 3.
Fig. 5 is the cross-sectional view of serial number 16 in Fig. 4.
Wherein, 1 is waterproof connector, and 2 be shell, and 3 be cover board, and 4 be gasket, and 5 be connecting terminal, and 6 be cold end terminal, 7
It is connection circuit board for external connecting cables, 8,9 be single cord, and 10 be screw, and 11 be printed circuit board, and 12 be locating piece,
13 be Hall element, and 14 be interlayer insulating layer, and 15 be insulating cement, and 16 be probe protective cover.
Specific embodiment
The embodiment of the present invention is described in detail below in conjunction with attached drawing, but the present invention can be limited according to claim
Fixed and covering multitude of different ways is implemented.
Referring to FIG. 1 to FIG. 5, a kind of motor-car velocity sensor, including shell 2 and connecting terminal 5 on its interior,
Cold end terminal 6, connection circuit board 8, single cord 9 and probe assembly, shell 2 are equipped with axially open, which is equipped with lid
Plate 3, cover board 3 and 2 fixed seal connection of shell；Connecting terminal 5 is soldered on connection circuit board 8, and cold end terminal 6 crimps outside
Connecting cable 7, and be fixed on connecting terminal 5, probe assembly and connection circuit board 8 are connected by single cord 9, and are fixed on
On shell.
Wherein, connecting terminal 5 is fence type connecting terminal.
Velocity sensor further includes connection circuit board 8, is connect by single cord 9 with printed circuit board, and electricity consumption is connected
Connecting terminal 5 on road plate 8 is equipped with the screw for compressing conducting wire, can bear huge torque, compresses conducting wire securely and guarantees
The contact area of electric wire, every being individually completely fixed for electric wire enable velocity sensor to bear motor-car during high-speed cruising
The vibration of generation, and thus the internal component of velocity sensor will not generate loosening.
Shell 2 is stainless steel material.The bottom of shell 2 is equipped with notch I, the encapsulating insulating cement at notch I, the depth of notch I
Degree is 2mm.
Cover board 3 is fixedly connected with shell 2 by 6 stainless steel screws 10, and spacing is fixed, and guarantees the length in velocity sensor
In phase use process, cover board 3 will not guarantee the dust and water protection performance of velocity sensor because of too long generation bending deformation.
Probe assembly and connection circuit board 8 are fixedly attached on shell 2 by screw 10, guarantee that connection circuit board exists
It will not be loosened in vibration and shock environment.
Rubber gasket 4 is equipped between cover board 3 and shell 2, screw 10 sequentially passes through cover board 3 and rubber gasket 4 is fixed
To shell 2, the mounting surface of cover board 3 and shell 2 is processed into the notch II of installation rubber gasket 4, forms integrated sealing cover board.
External connecting cables 7 are drawn from one end of shell 2, and exit passes through 1 lock sealing of waterproof connector.It is easily installed,
Guarantee the security reliability of waterproof performance.Waterproof connector 1 and exit are protected with heat-shrinkable T bush.
Probe assembly includes probe protective cover 16, printed circuit board 11, locating piece 12, Hall element 13 and interlayer insulating layer
14, printed circuit board 11 is fixedly attached to shell 2, and locating piece 12, Hall element 13 and interlayer insulating layer 14 pass through encapsulating insulating cement
15 are fixed in probe protective cover 16, and probe protective cover 16 is laser welded to shell 2, ensure that bonding strength, reduce difficult processing
Degree.Locating piece 12 and Hall element 13 are fixed by Kapton adhesive tape.Hall element 13 is complete by interlayer insulating layer 14
It is bonded probe protective cover 16.Guarantee accurate, the stability of measuring signal.Printed circuit board 11 is solid by 4 stainless steel screws 10
Surely it is connected to shell 2, guarantees that printed circuit board 11 will not loosen in vibration and shock environment.
Probe protective cover 16 and the centerline of waterproof connector 1 are on same axis.The inside of probe protective cover 16 opens up
Round notch III, locating piece 12, Hall element 13 and interlayer insulating layer 14 are all set in the notch III, and the radius of notch III is
0.1mm.The adhesive property for guaranteeing velocity sensor insulating cement 15 after encapsulating insulating cement 15, also ensures each portion of probe assembly
Part will not fall off under exceedingly odious service condition, lead to operation troubles.
Cold end terminal 6 is fixed by screws on connecting terminal 5, probe assembly with connect with circuit board 8 by 4 it is stainless
Steel screw 10 is fixed on shell 2.
Embodiment 2：
The depth of notch I is 4mm, and the radius of notch III is 0.3mm, remaining is the same as embodiment 1.
Embodiment 3：
The depth of notch I is 3mm, and the radius of notch III is 0.2mm, remaining is the same as embodiment 1.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of motor-car velocity sensor, which is characterized in that including shell and connecting terminal on its interior, cold pressing end
Son, connection circuit board, single cord and probe assembly, the shell are equipped with axially open, which is equipped with cover board, cover board
With shell fixed seal connection；The connecting terminal is soldered on connection circuit board, and cold end terminal crimps external connecting cables,
And be fixed on connecting terminal, probe assembly and connection are connected with circuit board by single cord, and are screwed respectively in outer
On shell.
2. a kind of motor-car velocity sensor according to claim 1, which is characterized in that the velocity sensor further includes
Connection circuit board, is connect by single cord with printed circuit board, and connection is with welding connecting terminal, connecting terminal on circuit board
It is equipped with the screw for compressing cold end terminal.
3. a kind of motor-car velocity sensor according to claim 1, which is characterized in that the bottom of the shell is equipped with slot
Mouth I, the encapsulating insulating cement at notch I.
4. a kind of motor-car velocity sensor according to claim 1, which is characterized in that if the cover board and shell pass through
A dry screw is fixedly connected, and spacing is fixed.
5. a kind of motor-car velocity sensor according to claim 1, which is characterized in that the probe assembly with connect use
Circuit board is fixedly attached on shell by screw.
6. a kind of motor-car velocity sensor according to claim 1, which is characterized in that set between the cover board and shell
There is gasket, screw sequentially passes through cover board and gasket is fixed to shell.
7. a kind of motor-car velocity sensor according to claim 1, which is characterized in that the external connecting cables are from outer
One end of shell is drawn, and exit passes through waterproof connector lock sealing.
8. a kind of motor-car velocity sensor according to claim 1, which is characterized in that the probe assembly includes probe
Protective cover, printed circuit board, locating piece, Hall element and interlayer insulating layer, printed circuit board are fixedly attached to shell, locating piece,
Hall element and interlayer insulating layer are fixed in probe protective cover by encapsulating insulating cement, and probe protective cover is soldered to shell.
9. a kind of motor-car velocity sensor according to claim 8, which is characterized in that the inside of the probe protective cover
Round notch III is opened up, locating piece, Hall element and interlayer insulating layer are all set in the notch III.
10. a kind of motor-car velocity sensor according to claim 1, which is characterized in that cold end terminal is solid by screw
It is scheduled on connecting terminal, probe assembly and connection are fixed on shell with circuit board by screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811044871.8A CN108828257A (en) | 2018-09-07 | 2018-09-07 | A kind of motor-car velocity sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811044871.8A CN108828257A (en) | 2018-09-07 | 2018-09-07 | A kind of motor-car velocity sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108828257A true CN108828257A (en) | 2018-11-16 |
Family
ID=64149730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811044871.8A Pending CN108828257A (en) | 2018-09-07 | 2018-09-07 | A kind of motor-car velocity sensor |
Country Status (1)
| Country | Link |
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| CN (1) | CN108828257A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110161276A (en) * | 2019-04-29 | 2019-08-23 | 株洲电力机车电机修造有限公司 | A kind of velocity sensor for pulling motor of railway vehicle |
| CN111487430A (en) * | 2020-06-03 | 2020-08-04 | 湖南联诚轨道装备有限公司 | Speed sensor |
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| JP2002303634A (en) * | 2001-01-30 | 2002-10-18 | Sumitomo Electric Ind Ltd | Rotation detecting sensor |
| CN1725017A (en) * | 2004-07-20 | 2006-01-25 | 住电电子株式会社 | Rotation sensor |
| CN201637754U (en) * | 2010-03-09 | 2010-11-17 | 长沙南车电气设备有限公司 | Magnetoelectric velocity transducer |
| CN202075298U (en) * | 2011-05-04 | 2011-12-14 | 博世汽车部件(苏州)有限公司 | Wheel speed sensor |
| CN102645547A (en) * | 2012-04-20 | 2012-08-22 | 株洲电力机车电机修造有限公司 | Speed sensor and speed-measuring system of traction motor rotor |
| CN103487598A (en) * | 2013-10-15 | 2014-01-01 | 湖南湘依铁路机车电器股份有限公司 | Multi-channel locomotive speed measurement hall revolution speed transducer and installation method thereof |
| CN105807079A (en) * | 2016-04-20 | 2016-07-27 | 宁波中车时代传感技术有限公司 | Speed sensor assembly of motor for high-speed vehicle and manufacturing method of speed sensor assembly |
| CN107796954A (en) * | 2016-09-07 | 2018-03-13 | 本田制锁有限公司 | The connection method of sensor element and terminal board in sensor device and sensor device |
| CN208568820U (en) * | 2018-09-07 | 2019-03-01 | 株洲联诚集团控股股份有限公司 | A kind of motor-car velocity sensor |
-
2018
- 2018-09-07 CN CN201811044871.8A patent/CN108828257A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002303634A (en) * | 2001-01-30 | 2002-10-18 | Sumitomo Electric Ind Ltd | Rotation detecting sensor |
| CN1725017A (en) * | 2004-07-20 | 2006-01-25 | 住电电子株式会社 | Rotation sensor |
| CN201637754U (en) * | 2010-03-09 | 2010-11-17 | 长沙南车电气设备有限公司 | Magnetoelectric velocity transducer |
| CN202075298U (en) * | 2011-05-04 | 2011-12-14 | 博世汽车部件(苏州)有限公司 | Wheel speed sensor |
| CN102645547A (en) * | 2012-04-20 | 2012-08-22 | 株洲电力机车电机修造有限公司 | Speed sensor and speed-measuring system of traction motor rotor |
| CN103487598A (en) * | 2013-10-15 | 2014-01-01 | 湖南湘依铁路机车电器股份有限公司 | Multi-channel locomotive speed measurement hall revolution speed transducer and installation method thereof |
| CN105807079A (en) * | 2016-04-20 | 2016-07-27 | 宁波中车时代传感技术有限公司 | Speed sensor assembly of motor for high-speed vehicle and manufacturing method of speed sensor assembly |
| CN107796954A (en) * | 2016-09-07 | 2018-03-13 | 本田制锁有限公司 | The connection method of sensor element and terminal board in sensor device and sensor device |
| CN208568820U (en) * | 2018-09-07 | 2019-03-01 | 株洲联诚集团控股股份有限公司 | A kind of motor-car velocity sensor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110161276A (en) * | 2019-04-29 | 2019-08-23 | 株洲电力机车电机修造有限公司 | A kind of velocity sensor for pulling motor of railway vehicle |
| CN111487430A (en) * | 2020-06-03 | 2020-08-04 | 湖南联诚轨道装备有限公司 | Speed sensor |
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