CN107894513A - Track traffic hall speed sensor and its manufacture method - Google Patents
Track traffic hall speed sensor and its manufacture method Download PDFInfo
- Publication number
- CN107894513A CN107894513A CN201710977863.8A CN201710977863A CN107894513A CN 107894513 A CN107894513 A CN 107894513A CN 201710977863 A CN201710977863 A CN 201710977863A CN 107894513 A CN107894513 A CN 107894513A
- Authority
- CN
- China
- Prior art keywords
- low
- injection molding
- pressure injection
- molding module
- clamping cap
- 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.)
- Granted
Links
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
- G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
- G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
- G01P3/487—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by rotating magnets
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Track traffic hall speed sensor, it includes integral type device seat, low-pressure injection molding module, tail pipe, expansion controlling ring-shaped insert, clamping cap；The integral type device seat inner chamber and anti-rotation interannular limited position mechanism, there is phase detent mechanism between low-pressure injection molding module；The tail pipe inner cavity surface has printed board mounting groove；The expansion controlling ring-shaped insert be enclosed on tail pipe be placed in it is spacing by position-limit mechanism in integral type device seat inner chamber；The clamping cap periphery is connected with integral housing tailing screw flight, and clamping cap front end sets expansion controlling ring-shaped insert compressive plane, and expansion controlling ring-shaped insert is compressed by extruding expansion controlling ring-shaped insert compressive plane to make low-pressure injection molding module and integral type device seat is in close contact and fixed when clamping cap rotates；The low-pressure injection molding module includes inner core member and support member, inner core member forms support member by plastics low-pressure injection molding outside it, there are two parallel kidney-shaped plane breach on the external cylindrical surface of low-pressure injection molding module, kidney-shaped plane breach surface is parallel with the printed board plane of inside chip.A kind of manufacture method is also correspondingly provided.
Description
Technical field
The present invention relates to the Hall revolution speed transducer of track traffic.
Background technology
2 passage hall principle speed probes, by permanent-magnet steel, Hall element, amplification and rectification circuit, housing, cable, company
Connect the parts such as device composition.Magnet steel, Hall element and amplification and rectification circuit are encapsulated in enclosure interior, housing band installation positioning knot
Structure；It is electrically connected by cable and connector with system, to sensor power supply and output speed signal in tested rotating speed
Rotating shaft on install a speed measuring fluted disc, velocity sensor sensitive surface is close to fluted disc.The rotation of fluted disc makes the magnetic resistance of magnetic circuit with gas
The change of gap and periodically change, when tooth top be aligned Hall element when, the magnetic line of force concentrate through Hall element, can produce larger
Hall electromotive force, amplification, export high level after shaping；Conversely, when bottom of the tooth is directed at Hall element, export as low level.It is defeated
The rotary speed of measure speed gearses can be followed and change by going out the change frequency of level, it may be determined that the rotating speed of measured object.
The conventional hall speed sensor housing that track transportation industry now uses uses Split type metal housing unit more, interior
Fixed between core assembly and housing unit by way of colloid embedding is tamped, product manufacturability is poor, production cycle length, cost
Height, and because inside is without glue strain relief, easily occur solder joint when being used under long-term big temperature changing environment and the failure conditions such as be broken,
Product reliability is poor.Non-modular designs, can not by stocking up in advance, pre-manufactured nucleus module realize the shortening of production cycle,
The client response cycle is longer.
The content of the invention
The technical problems to be solved by the invention are to overcome the above-mentioned deficiency of prior art and provide a kind of Hall rotating speed and pass
Sensor, make its reliability high.
Technical scheme is used by the present invention solves the above problems：Track traffic hall speed sensor, it includes
Integral type device seat, low-pressure injection molding module, tail pipe, expansion controlling ring-shaped insert, clamping cap；The integral type device seat inner chamber and anti-rotation interannular limited location
There is phase detent mechanism between mechanism, with low-pressure injection molding module；The tail pipe inner cavity surface has printed board mounting groove；The anti-rotation ring set
It is placed on tail pipe spacing by position-limit mechanism in integral type device seat inner chamber；The clamping cap periphery and integral housing afterbody
Threaded connection, clamping cap front end set expansion controlling ring-shaped insert compressive plane, anti-rotation are compressed by extruding expansion controlling ring-shaped insert compressive plane when clamping cap rotates
Ring and low-pressure injection molding module and integral type device seat is in close contact and is fixed；The low-pressure injection molding module includes inner core member and branch
Support member, inner core member form support member by plastics low-pressure injection molding outside it, have two on the external cylindrical surface of low-pressure injection molding module
Individual parallel kidney-shaped plane breach, kidney-shaped plane breach surface are parallel with the printed board plane of inside chip.
More specifically, above-mentioned integral type device seat inner chamber and the position-limit mechanism of anti-rotation interannular are：Integral housing inner chamber is limited
Position groove, the annulus periphery of expansion controlling ring-shaped insert have two corresponding spacing tongues, spacing tongue insertion stopper slot and it is spacing.
More specifically, the phase detent mechanism between above-mentioned integral type device seat inner chamber and low-pressure injection molding module is：Integral type shell
Intracoelomic cavity has phase neck, has phase orientation Block- matching on low-pressure injection molding module is cylindrical.
Preferably, above-mentioned phase neck has two, corresponds to the measure speed gearses of two different moduluses respectively.
Preferably, set up defences on above-mentioned plastic tailpipe external cylindrical surface one end wrong breach, mistake proofing block breach and low-pressure injection molding module
On mistake proofing block coordinate, realize assembling when mistake proofing.
Preferably, there is frock hole above-mentioned double thread clamping cap end face, coordinates with special locking fixture, is turned by frock double
Screw thread clamping cap, is installed in place it.
A kind of manufacture method of traffic hall speed sensor is additionally provided, is comprised the following steps：
Step 1, inner core member is molded to form low-pressure injection molding module；
Step 2, cable is welded at the exposed pad of printed board in inner core member, plastic tailpipe is filled in into low pressure injection mould
Components above, is then vertically arranged by block afterbody, and casting glue is inserted at plastic tailpipe cavity, forms cable line assembly；
Step 3, the afterbody that expansion controlling ring-shaped insert is installed to plastic tailpipe；
Step 4, by step 3 gained component be placed into integral housing, the phase orientation of low-pressure injection molding module periphery
Block is filled in the phase neck in integral housing；The boss of expansion controlling ring-shaped insert aligns with integral housing groove to be filled in；
Step 5 and then the connection of the tailing screw flight of double thread clamping cap and integral housing is tightened, until surface both flushes,
Subsequent assembling step is carried out after being welded again in joint.
Preferably, locking fixture is caught in the frock hole of double thread clamping cap afterbody in above-mentioned steps 5, utilizes Flexible spanner
Hand tightens locking fixture, drives screw thread clamping cap to be screwed into integral housing, until surface both flushes, then removes locking work
Dress, subsequent assembling step is carried out after being welded in joint.
The advantage of the invention is that：1st, low-pressure injection molding technology introduces the track traffic velocity pick-up with metal shell protection
The production of device, to substitute traditional process for filling colloid, it is huge successfully to solve casting glue expanded by heating generation in closed metal cavity
The problem of internal stress and then destruction electrical connection, improve long-term reliability of the product in complex environment；Low-pressure injection molding technology
Dosing technology is compared, there is the advantages of with short production cycle, production efficiency is high, be substantially shorter life cycle of the product.Demonstrate,prove after tested
Bright, product complies fully with requirement.
2nd, using structures such as integral housing, its components modularizations, good versatility, high reliability, Gao Ke can be obtained
The track traffic hall speed sensor of manufacturing, and manufacture efficiency can be improved.
Brief description of the drawings
Fig. 1 is the overall structure diagram of Hall revolution speed transducer of the embodiment of the present invention.
Fig. 2 is the dimensional structure diagram of Hall revolution speed transducer device seat of the embodiment of the present invention.
Fig. 3 is the dimensional structure diagram of the sensor assembly of Hall revolution speed transducer of the embodiment of the present invention.
Fig. 4 is the dimensional structure diagram of Hall revolution speed transducer tail pipe of the embodiment of the present invention.
Fig. 5 is the three-dimensional structure diagram of Hall revolution speed transducer expansion controlling ring-shaped insert of the embodiment of the present invention.
Fig. 6 is the schematic perspective view of Hall revolution speed transducer clamping cap of the embodiment of the present invention.
Fig. 7 is the schematic perspective view of Hall revolution speed transducer clamping cap other direction of the embodiment of the present invention.
Fig. 8 is the structural representation after sensor assembly of the embodiment of the present invention, plastic tailpipe, expansion controlling ring-shaped insert, CA cable assembly assembling
Figure.
Fig. 9 is that integral type device seat of the embodiment of the present invention assembles with sensor assembly, plastic tailpipe, expansion controlling ring-shaped insert, CA cable assembly
Schematic diagram.
Figure 10 is that integral type device seat of the embodiment of the present invention assembles with sensor assembly, plastic tailpipe, expansion controlling ring-shaped insert, CA cable assembly
Structural representation afterwards.
Figure 11 is that integral type device seat of the embodiment of the present invention assembles with sensor assembly, plastic tailpipe, expansion controlling ring-shaped insert, CA cable assembly
Schematic perspective view afterwards.
Figure 12 is the schematic diagram that the embodiment of the present invention tightens clamping cap with frock.
Embodiment
Below in conjunction with the accompanying drawings, the present invention is further described for embodiment.
As shown in figure 1, Hall revolution speed transducer, it includes integral type device seat 1, sensor assembly 2, plastic tailpipe 3, anti-rotation
Ring 4, clamping cap 5 and cable line assembly 6.
As shown in Fig. 2 above-mentioned integral type device seat 1, two expansion controlling ring-shaped insert stopper slots 11 and two phase necks are designed in its inner chamber
The measure speed gearses of 12 corresponding different moduluses, expansion controlling ring-shaped insert stopper slot 11 are used to match with expansion controlling ring-shaped insert 4, and phase neck is used to note with low pressure
Phase orientation Block- matching on mold block 2, while afterbody has internal thread 13, for the connection with double thread clamping cap 5, its inner chamber
The size of body is using the appearance and size of low-pressure injection molding module 2 as reference, to realize that both small―gap sutures coordinate.
As shown in figure 3, above-mentioned low-pressure injection molding module 2 is integral module, by being formed after inner core member low-pressure injection molding, it is logical
The clearance fit relationship with the inner chamber of integral housing 1 is crossed, plays inner core member placed in the middle, physical isolation inner core member and integral type shell
The effect of body 1, improve the insulation resistance energy of product.
There are two parallel kidney-shaped plane breach 21, kidney-shaped plane breach on the external cylindrical surface of above-mentioned low-pressure injection molding module 2
21 surfaces are parallel with the printed board plane of inside chip, make to form a sky between low-pressure injection molding module 2 and integral housing 1
Chamber, for being squeezed into during injected plastics material expanded by heating, reduce the internal stress effect in inner core member.
There are corresponding phase orientation block 22, itself and the inner chamber of integral housing 1 on the above-mentioned external cylindrical surface of low-pressure injection molding module 2
In phase neck 12 match, that inner core member and integral housing 1 are realized in a manner of machinery positioning determines angular deflection, makes speed
The phase-difference control of two output signals of sensor is spent within 90 ° ± 20 °.
The above-mentioned afterbody of low-pressure injection molding module 2 is also devised with half round bump 23, real for the cooperation with plastic tailpipe 3
Mistake proofing during both existing assemblings.
There is O-ring groove 24 in the above-mentioned head Hall element mounting seat of low-pressure injection molding module 2, an O-ring be installed thereon,
Low-pressure injection molding module 2 is interference fitted with integral housing 1 on head, improve the resistance to shock of product.
Two air discharge ducts 25 are also devised with above-mentioned Hall element mounting seat O-ring groove, are easy to low-pressure injection molding module 2 to load
When be vented.
Printed board afterbody in above-mentioned inner core member is exposed outside low-pressure injection molding block with cable weld 29, is easy to follow-up
With cable wire bonding, it low-pressure injection molding module 2 is formed a single module, be easy to stock up in advance, shorten production
Cycle.
Above-mentioned printed board exposed section is also devised with two printed board locating slots 26 and an Anti-error structure 27, is easy to inner core
Positioning and mistake proofing of the part during low-pressure injection molding with cavity body of mould.
Above-mentioned plastic tailpipe 3 uses high-temperature resistance plastice material, is installed on printed board afterbody, for by printed board afterbody and one
The inner chamber of body sandwich type element 1 is dielectrically separated from, and the afterbody of itself and low-pressure injection molding module 2 has axis hole relation and is equipped with, and passes through external cylindrical surface
On mistake proofing groove 31 realize assembling when mistake proofing, concrete structure is as shown in Figure 4.
Above-mentioned expansion controlling ring-shaped insert 4 is installed on plastic tailpipe 3, and as shown in Figure 4, traditional 2 passage Halls are fast for specific installation site
The part is not designed with degree sensor.Its structure has two spacing tongues as shown in figure 5, cyclic structure in annulus periphery
41, for coordinating with the stopper slot 11 in the inner chamber of integral housing in Fig. 21, prevent its when compressing low-pressure injection molding module 2 with
It is relatively rotated with integral housing.
As shown in Figure 6,7, above-mentioned double thread clamping cap 5 is cyclic structure, and its inner headed face is processed into internal thread 51, and part is outer
Disc is processed into external screw thread 52, and external screw thread 52 is realized with the tailing screw flight 13 of integral housing 1 matches connection, so as to realize screw thread
The conversion of specification, while double thread clamping cap 5 is also devised with expansion controlling ring-shaped insert compressive plane 53, and integral type is screwed into when it is connected through a screw thread
During 1 inner chamber of housing, the extruding of expansion controlling ring-shaped insert 4 is completed, after expansion controlling ring-shaped insert 4 is extruded, low-pressure injection molding module 2 is promoted forward, makes itself and one
Body sandwich type element 1 is in close contact and fixed
The above-mentioned end face of double thread clamping cap 5 is designed with two frock holes 54, for coordinating with special locking fixture, is twisted by frock
Dynamic double thread clamping cap 5, is installed in place it.
Above-mentioned track traffic hall speed sensor manufacture method, comprises the following steps：
Step 1, inner core member is molded to form low-pressure injection molding module 2；
Step 2, cable is welded to 29 at the exposed pad of printed board in inner core member, plastic tailpipe 3 is filled in into low pressure note
Components above, is then vertically arranged by the afterbody of mold block 2, and casting glue is inserted at the cavity of plastic tailpipe 3, forms cable line assembly；
Step 3, the afterbody that expansion controlling ring-shaped insert 4 is installed to plastic tailpipe 3, are shown in Fig. 9；
Step 4, by step 6 gained component be placed into integral housing 1, the phase of the periphery of plastic insulation casing 2 is determined
To be filled in block 22 in the phase neck 12 in integral housing 1, phase neck 22 has two, and one corresponds to modulus 1.5, another
Corresponding modulus 2；The boss of expansion controlling ring-shaped insert 6 aligns with the groove of integral housing 1 to be filled in, and sees Figure 10；
Step 5 and then double thread clamping cap 7 is connected with the tailing screw flight of integral housing 1, screw thread wouldn't be tightened, and see Figure 11；
Step 6, locking fixture is caught in the frock hole of the afterbody of double thread clamping cap 7, using monkey wrench along X to tightening locking
Frock 8, drive screw thread clamping cap 7 to be screwed into integral housing 1, until both flush on H faces surface, see Figure 12；
Step 7, mobile locking fixture, the frock hole of the afterbody of abjection double thread clamping cap 7, remove locking fixture, make in joint
Welded with Laser Welding, closed integral housing 1 and double thread clamping cap 7, pipe joint is screwed into after welding, is subsequently assembled
Step.
Claims (10)
1. track traffic hall speed sensor, it is characterised in that：It include integral type device seat, low-pressure injection molding module, tail pipe,
Expansion controlling ring-shaped insert, clamping cap；The integral type device seat inner chamber and anti-rotation interannular limited position mechanism, have phase to determine between low-pressure injection molding module
Position mechanism；The tail pipe inner cavity surface has printed board mounting groove；The expansion controlling ring-shaped insert, which is enclosed on tail pipe, is placed in integral type device seat inner chamber
In it is spacing by position-limit mechanism；The clamping cap periphery is connected with integral housing tailing screw flight, and clamping cap front end sets anti-rotation
Ring compressive plane, expansion controlling ring-shaped insert is compressed to make low-pressure injection molding module and integral type device by extruding expansion controlling ring-shaped insert compressive plane when clamping cap rotates
Seat is in close contact and fixed；The low-pressure injection molding module includes inner core member and support member, and inner core member is noted by plastics low pressure
Modeling forms support member outside it, has two parallel kidney-shaped plane breach on the external cylindrical surface of low-pressure injection molding module, kidney-shaped is put down
Face breach surface is parallel with the printed board plane of inside chip.
2. track traffic hall speed sensor according to claim 1, it is characterised in that：In the integral type device seat
The position-limit mechanism of chamber and anti-rotation interannular is：Integral housing inner chamber limited location groove, the annulus periphery of expansion controlling ring-shaped insert have two accordingly
Spacing tongue, spacing tongue is embedded in stopper slot and spacing.
3. track traffic hall speed sensor according to claim 1, it is characterised in that：In the integral type device seat
Phase detent mechanism between chamber and low-pressure injection molding module is：There is a phase neck integral housing inner chamber, and low-pressure injection molding module is cylindrical
On have phase orientation Block- matching.
4. track traffic hall speed sensor according to claim 3, it is characterised in that：The phase neck has two
It is individual, the measure speed gearses of two different moduluses are corresponded to respectively.
5. track traffic hall speed sensor according to claim 1, it is characterised in that：The plastic tailpipe is cylindrical
Set up defences on cylinder one end wrong breach, mistake proofing block breach coordinates with the mistake proofing block in low-pressure injection molding module.
6. track traffic hall speed sensor according to claim 1, it is characterised in that：The clamping cap end face has
Frock hole, coordinate with special locking fixture.
7. track traffic hall speed sensor according to claim 1, it is characterised in that：The low-pressure injection molding module
There is O-ring groove in the Hall element mounting seat of head, an O-ring is installed thereon.
8. track traffic hall speed sensor according to claim 1, it is characterised in that：Low-pressure injection molding module is printed
There are printed board locating slot and Anti-error structure in plate exposed section.
A kind of 9. manufacture method of track traffic hall speed sensor, it is characterised in that：Comprise the following steps：
Step 1, inner core member is molded to form low-pressure injection molding module；
Step 2, cable is welded at the exposed pad of printed board in inner core member, plastic tailpipe is filled in into low pressure injection mould
Components above, is then vertically arranged by block afterbody, and casting glue is inserted at plastic tailpipe cavity, forms cable line assembly；
Step 3, the afterbody that expansion controlling ring-shaped insert is installed to plastic tailpipe；
Step 4, by step 3 gained component be placed into integral housing, the phase orientation of low-pressure injection molding module periphery
Block is filled in the phase neck in integral housing；The boss of expansion controlling ring-shaped insert aligns with integral housing groove to be filled in；
Step 5 and then the connection of the tailing screw flight of double thread clamping cap and integral housing is tightened, until surface both flushes,
Subsequent assembling step is carried out after being welded again in joint.
10. the manufacture method of traffic hall speed sensor according to claim 9, it is characterised in that：The step 5
It is middle to be caught in locking fixture in the frock hole of double thread clamping cap afterbody, locking fixture is tightened using monkey wrench, drives screw thread
Clamping cap is screwed into integral housing, until surface both flushes, then removes locking fixture, is carried out after being welded in joint follow-up
Number of assembling steps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710977863.8A CN107894513B (en) | 2017-10-19 | 2017-10-19 | Hall speed sensor for rail transit and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710977863.8A CN107894513B (en) | 2017-10-19 | 2017-10-19 | Hall speed sensor for rail transit and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107894513A true CN107894513A (en) | 2018-04-10 |
| CN107894513B CN107894513B (en) | 2020-04-07 |
Family
ID=61803573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710977863.8A Active CN107894513B (en) | 2017-10-19 | 2017-10-19 | Hall speed sensor for rail transit and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107894513B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110865208A (en) * | 2019-11-27 | 2020-03-06 | 湖南声仪测控科技有限责任公司 | Special tool for detecting Hall speed sensor |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202351458U (en) * | 2011-10-27 | 2012-07-25 | 中航光电科技股份有限公司 | Optical fiber connector with incoming line anti-rotation function and shell component thereof |
| CN203460626U (en) * | 2013-08-14 | 2014-03-05 | 联创汽车电子有限公司 | Tire pressure monitoring sensor with once-curing formed structure |
| CN103944009A (en) * | 2014-05-13 | 2014-07-23 | 威廉姆斯(苏州)控制系统有限公司 | Integrated wiring harness having high-voltage protection function |
| CN104457454A (en) * | 2013-09-25 | 2015-03-25 | 北京北方邦杰科技发展有限公司 | Firing control element for digital electronic detonator and production method of firing control element |
| CN105044379A (en) * | 2015-08-28 | 2015-11-11 | 宁波南车时代传感技术有限公司 | Housing of multichannel speed sensor mounted at locomotive axle end |
| 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 |
| CN105911304A (en) * | 2016-04-20 | 2016-08-31 | 宁波中车时代传感技术有限公司 | Housing assembly for multichannel Hall velocity sensor |
| CN206020450U (en) * | 2016-09-13 | 2017-03-15 | 中国航空动力机械研究所 | Hall revolution speed transducer |
| WO2017058380A1 (en) * | 2015-10-02 | 2017-04-06 | Schaeffler Technologies AG & Co. KG | Sensor assembly with an encoder disc |
| CN206321063U (en) * | 2016-12-07 | 2017-07-11 | 北京神雾环境能源科技集团股份有限公司 | For the overhang roll of heating furnace and the heating furnace with it |
-
2017
- 2017-10-19 CN CN201710977863.8A patent/CN107894513B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202351458U (en) * | 2011-10-27 | 2012-07-25 | 中航光电科技股份有限公司 | Optical fiber connector with incoming line anti-rotation function and shell component thereof |
| CN203460626U (en) * | 2013-08-14 | 2014-03-05 | 联创汽车电子有限公司 | Tire pressure monitoring sensor with once-curing formed structure |
| CN104457454A (en) * | 2013-09-25 | 2015-03-25 | 北京北方邦杰科技发展有限公司 | Firing control element for digital electronic detonator and production method of firing control element |
| CN103944009A (en) * | 2014-05-13 | 2014-07-23 | 威廉姆斯(苏州)控制系统有限公司 | Integrated wiring harness having high-voltage protection function |
| CN105044379A (en) * | 2015-08-28 | 2015-11-11 | 宁波南车时代传感技术有限公司 | Housing of multichannel speed sensor mounted at locomotive axle end |
| WO2017058380A1 (en) * | 2015-10-02 | 2017-04-06 | Schaeffler Technologies AG & Co. KG | Sensor assembly with an encoder disc |
| 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 |
| CN105911304A (en) * | 2016-04-20 | 2016-08-31 | 宁波中车时代传感技术有限公司 | Housing assembly for multichannel Hall velocity sensor |
| CN206020450U (en) * | 2016-09-13 | 2017-03-15 | 中国航空动力机械研究所 | Hall revolution speed transducer |
| CN206321063U (en) * | 2016-12-07 | 2017-07-11 | 北京神雾环境能源科技集团股份有限公司 | For the overhang roll of heating furnace and the heating furnace with it |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110865208A (en) * | 2019-11-27 | 2020-03-06 | 湖南声仪测控科技有限责任公司 | Special tool for detecting Hall speed sensor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107894513B (en) | 2020-04-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103900617B (en) | A kind of manufacture method of current vortex sensor probe | |
| CN106946213B (en) | A kind of pressure sensor and preparation method thereof | |
| CN103354404B (en) | A kind of magnetic shoe guide device | |
| CN107894513A (en) | Track traffic hall speed sensor and its manufacture method | |
| CN107907705A (en) | Traffic hall speed sensor and its manufacture method | |
| CN102756453A (en) | Method for making built-in finished product, built-in nut, and built-in finished product | |
| CN105784260A (en) | Novel pressure sensor | |
| CN103196623A (en) | Medium isolation pressure sensor based on back metalization process | |
| CN204269226U (en) | A kind of piezoelectric vibration pickup | |
| CN105807079B (en) | The speed sensor assembly and its manufacturing method of high speed automobile motor | |
| CN101829894A (en) | Stainless steel coil press mounting system of dust cover and stainless steel coil press mounting method | |
| CN203231865U (en) | Dielectric isolation pressure sensor based on backside metallization process | |
| CN203310310U (en) | Glue-filling protective structure of electronic detonator inbuilt control module | |
| CN104514911B (en) | Electronic expansion valve and coil device thereof | |
| CN107942091A (en) | A kind of traffic hall speed sensor and its manufacture method | |
| CN201985345U (en) | Low voltage wiring harness of power module | |
| CN204376361U (en) | A kind of wire connection device of pressure-resistant seal | |
| CN104167483A (en) | LED packaging structure and manufacturing method thereof | |
| CN201993196U (en) | Integral glass sealed base for pressure sensor | |
| CN110054141A (en) | Pressure sensor and its packaging method | |
| CN202710237U (en) | Absolute pressure sensor packaging structure | |
| CN103367351B (en) | Based on silica-based LED module multiple-layer stacked structure and manufacture method | |
| CN206235510U (en) | A kind of experiment pressure head and its sealing device for rock off-load Experimental on acoustic emission | |
| CN220102236U (en) | Coil assembly of intelligent electromagnetic valve | |
| CN203857923U (en) | Timing sensor of proximity magnetic principle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |