CN109029231A - A kind of current vortex sensor and its processing technology and a kind of magnetic suspension motor - Google Patents
A kind of current vortex sensor and its processing technology and a kind of magnetic suspension motor Download PDFInfo
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- CN109029231A CN109029231A CN201810660313.8A CN201810660313A CN109029231A CN 109029231 A CN109029231 A CN 109029231A CN 201810660313 A CN201810660313 A CN 201810660313A CN 109029231 A CN109029231 A CN 109029231A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
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Abstract
The present invention relates to magnetic levitation technology fields, and in particular to a kind of current vortex sensor and its processing technology and a kind of magnetic suspension motor.Current vortex sensor provided by the invention includes mounting base and inductance coil, including mounting base and the inductance mechanism being fixed in the mounting base, the inductance mechanism includes insulating support and inductance coil, inductance coil is first wound on formation inductance mechanism in the winding slot on insulating support, then it is fixed in the mounting base by inductance mechanism, the problem of this avoid winding inductance coil is easily snapped off because of inductance coil lead-out wire caused by narrow space in mounting base, it is simpler for the fixation of current vortex sensor, structure is simple, it is compact, it is small in size, it is advantageously implemented the miniaturization that the equipment of displacement detecting is done using the current vortex sensor, improve the whole mechanical positioning accuracy of equipment.
Description
Technical field
The present invention relates to magnetic levitation technology fields, and in particular to a kind of current vortex sensor and its processing technology and a kind of magnetic
Floatation electric motor
Background technique
Miniature motor is the most common form for converting electrical energy into mechanical energy, is had in household electrical appliance and industrial circle
It is widely applied.Traditional motor mainly includes motor stator portion, rotor part, rotor supports bearing, casing etc.
Part.The mechanical bearing as used in conventional motors will lead to bearing retainer under ultrahigh rotating speed and cross cause thermal damage and cannot achieve
Long-term operating, and mechanical bearing needs lubricating oil to maintain, and had not only influenced electrical machinery life in this way but also had been unfavorable for the cleaning of equipment.Cause
This is in order to realize that the long-life of ultrahigh rotating speed operation and equipment, cleaning oil-free must use contactless support side in the motor
Formula, i.e. magnetic suspension supporting way.And magnetic suspension bearing can also realize vibration suppression by active control, realize equipment
Super steady super quiet operation.The core component of magnetic suspension bearing includes magnetic suspension bearing ontology, displacement sensor, playing floating ring, (machinery is standby
With bearing).
Current vortex sensor can statically and dynamically non-contact, high linearity, measure metal conductor measured to high resolution
Away from detecting head surface distance.It is a kind of non-contacting linearisation metering outfit.Current vortex sensor can accurately measure measured body (must
Must be metallic conductor) and probe tip face between static and dynamic relative displacement change.
Current vortex sensor probe coil is wound on plastics probe in the prior art, passes through a bracket (or circuit
Plate) plastics probe is placed near detected body, probe coil is connected by cable with fore-lying device.Entire technical process is more numerous
It is trivial, and the cable being connected with coil needs properly to fix, and otherwise the junction of cable and coil easily disconnects.Therefore, at present
Current vortex sensor volume it is larger.
Summary of the invention
(1) the technical problems to be solved by the present invention are: existing Eddy current sensor coil is not fixed firmly with cable
It leans on, conveniently, the lead-out wire on inductance coil is thinner, and the problem of inductance coil fracture, and inductance occurs in operating space hour
Coil and cable are easy to disconnect in junction, and in addition the volume of current vortex sensor is larger.
(2) technical solution
In order to solve the above-mentioned technical problems, the present invention provides a kind of current vortex sensor, including mounting base and it is fixed on
Inductance mechanism in the mounting base, the inductance mechanism include insulating support and inductance coil, and the insulating support is equipped with
Winding slot, the inductance coil are wound around in the winding slot, and the mounting base is equipped with terminals, and the inductance coil draws
Outlet is electrically connected with the terminals.
Beneficial effects of the present invention: current vortex sensor provided by the invention includes mounting base and inductance coil, including peace
Dress seat and the inductance mechanism that is fixed in the mounting base, the inductance mechanism include insulating support and inductance coil, first will be electric
Sense coil is wound on the formation inductance mechanism winding slot on insulating support Nei, and inductance mechanism is then being fixed on the mounting base
On, this avoid in mounting base winding inductance coil ask because what inductance coil lead-out wire caused by narrow space easily snapped off
Topic, simpler for the fixation of current vortex sensor, structure is simple, compact, small in size, is advantageously implemented and uses the current vortex
Sensor does the miniaturization of the equipment of displacement detecting, improves the whole mechanical positioning accuracy of equipment；
In addition the lead-out wire of inductance coil is electrically connected with the terminals in mounting base, and working space is bigger, attended operation letter
It is single, it is convenient for connection operation, avoiding because lead-out wire volume size is too small causes lead-out wire to connect difficult problem with terminals,
External cable is electrically connected by terminals with lead-out wire, and this makes it possible to keep away the junction of the existing cable of solution and coil easily
The connection of the problem of disconnection, lead-out wire and terminals is relatively reliable.
Further, the inductance mechanism further includes pad, and the lead-out wire of the inductance coil is connected with the pad, institute
Pad is stated to be electrically connected with the terminals.
Further, the insulating support includes rack body, connecting column and connecting plate, one end of the connecting column and institute
State rack body one end be connected, the other end is connected with the connecting plate, the rack body, connecting column and the connecting plate it
Between surround the winding slot.
Further, the pad is set to the other end of the rack body relative to the connecting column.
Further, the rack body is equipped with metallic channel, the lead-out wire of the inductance coil pass through metallic channel with
The pad is connected.
Further, the metallic channel is equipped with two, and the pad is arranged in a one-to-one correspondence with the metallic channel, described in two
Metallic channel is set to the upper surface of the rack body, and one end of the metallic channel is connected to the winding slot, the other end with it is corresponding
The pad be connected.
Further, the outside of the inductance coil is equipped with magnetic glue shielded layer.
Further, the mounting base is circular mounting plate, and the middle part of the mounting plate forms one for be measured
The circular through hole that object passes through, the inductance mechanism be equipped with it is multiple, multiple inductance mechanisms are distributed in the upper of mounting plate
Surface, and the inductance coil of each inductance mechanism is respectively positioned on the upside of the circular through hole；The terminals is set on institutes
The binding post on mounting plate is stated, an inductance mechanism corresponds to two binding posts, inductance coil in each inductance mechanism
Two lead-out wires be electrically connected with corresponding two binding posts.
Further, there are four the inductance mechanism is set, four inductance mechanisms are oppositely arranged two-by-two and in the peace
The upper surface of loading board is uniformly distributed.
Further, the mounting base is circuit board, and the circuit board is equipped with control circuit and the terminals, described
Terminals electrical connection in inductance mechanism on circuit board described in two lead-out wires of inductance coil.
The present invention also provides a kind of magnetic suspension motors, it is characterised in that: including shell, shaft, is sheathed on the shaft
The motor stator and magnetic suspension support component in outside and current vortex sensor described in any of the above embodiments, the current vortex sensor
For detecting the displacement of the shaft；The shaft, motor stator, magnetic suspension support component and sensor are set to the shell
In vivo；The magnetic suspension support component is used to support the shaft.
The present invention also provides a kind of processing technologys of current vortex sensor as described above, comprising the following steps:
S1, prefabricated insulating support, and mounting groove is formed on the insulating support；
S2, forms inductance coil in the mounting groove, and the insulating support and the inductance coil constitute the inductance
Mechanism；
Inductance mechanism in step S2 is fixed in the mounting base by S3, by the lead-out wire and mounting base of inductance mechanism
On terminals electrical connection, form the current vortex sensor.
Further, it in step S1, is integrally formed to form the insulating support using ceramic material.
Further, step S2 includes:
S2-1 forms the inductance coil using enameled wire in mounting groove；
S2-2 fills the glue containing magnetic conduction particle in installation slot position and positioned at the outside of the inductance coil, is made into
Magnetic conduction but nonconducting magnetic glue shielded layer.
Further, the processing technology of the current vortex sensor, further includes:
The lead-out wire of inductance coil is passed through metallic channel by step S4, anchor pad and metallic channel on the insulating support
It is connected with pad, and the lead-out wire of inductance coil is connected by pad with the terminals in mounting base.
Detailed description of the invention
The advantages of above-mentioned and/or additional aspect of the invention, will be apparent from the description of the embodiment in conjunction with the following figures
Be readily appreciated that, in which:
Fig. 1 is the perspective view of current vortex sensor described herein；
Fig. 2 is the main view of current vortex sensor described herein；
Fig. 3 is the perspective view at one visual angle of inductance mechanism；
Fig. 4 is the perspective view at another visual angle of the inductance mechanism；
Fig. 5 is the perspective view of the insulating support；
Fig. 6 is the left view of the insulating support；
The wherein corresponding relationship in Fig. 1 and Fig. 6 between appended drawing reference and component names are as follows:
1, mounting base, 11, circular through hole, 2, inductance mechanism, 21, insulating support, 211, rack body, 212, connecting column,
213, connecting plate, 214, mounting groove, 215, pad, 216, magnetic glue shielded layer, 217, metallic channel, 22, inductance coil.
Specific embodiment
To better understand the objects, features and advantages of the present invention, with reference to the accompanying drawing and specific real
Applying mode, the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application
Feature in example and embodiment can be combined with each other.
As depicted in figs. 1 and 2, the present invention provides a kind of current vortex sensor, including mounting base 1 and it is fixed on the peace
The inductance mechanism 2 on seat 1 is filled, the inductance mechanism 2 includes insulating support 21 and inductance coil 22, is set on the insulating support 21
There is winding slot, the inductance coil 22 is wound around in the winding slot, and the mounting base 1 is equipped with terminals, the inductor wire
The lead-out wire of circle 22 is electrically connected with the terminals.
Current vortex sensor provided by the invention includes mounting base 1 and inductance coil 22, including mounting base 1 and is fixed on institute
The inductance mechanism 2 in mounting base 1 is stated, the inductance mechanism 2 includes insulating support 21 and inductance coil 22, first by inductance coil 22
It is wound on formation inductance mechanism 2 winding slot on insulating support 21 Nei, then inductance mechanism 2 is being fixed in the mounting base 1,
This avoid in mounting base 1 winding inductance coil 22 because of narrow space caused by inductance coil 22 lead-out wire easily snap off
Problem, simpler for the fixation of current vortex sensor, structure is simple, compact, small in size, is advantageously implemented and uses the electricity whirlpool
Flow sensor does the miniaturization of the equipment of displacement detecting, improves the whole mechanical positioning accuracy of equipment；In addition inductance coil 22 draws
Outlet is electrically connected with the terminals in mounting base 1, and working space is bigger, and attended operation is simple, be convenient for connection operation, avoid because
Lead-out wire is caused to connect difficult problem with terminals for lead-out wire volume size is too small, External cable is by terminals and draws
Line electrical connection, this makes it possible to keep away the junction for solving the problems, such as existing cable and coil easily to disconnect, lead-out wire and wiring
The connection at end is relatively reliable.
As shown in Figures 1 to 4, the inductance mechanism further includes pad 215, the lead-out wire of the inductance coil 22 with it is described
Pad 215 is connected, and the pad 215 is electrically connected with the terminals in the mounting base 1, wherein the pad 215 can be gold
Belong to pad 215, the lead-out wire and the pad 215 are one-to-one, i.e., two lead-out wires point of the described inductance coil 22
Not Dui Ying an individual pad 215, the lead-out wire is fixedly connected with pad 215, while the terminals in mounting base 1
It is electrically connected by conducting wire with corresponding pad 215, and then realizes the purpose that lead-out wire is electrically connected with corresponding terminals；Due to weldering
Disk 215 it is sufficiently bulky, therefore when lead-out wire is fixed on pad 215, is more convenient.
Certainly, the pad 215 can be isolation material in this application, then can be in setting on pad 215
Be arranged wiring contact (such as hard contact), two lead-out wires of the inductance coil 22 respectively with the wiring contact on pad 215
Electrical connection, then terminals are electrically connected by conducting wire with the wiring contact on pad 215 in mounting base 1, realize inductance coil 22
Lead-out wire and the terminals in mounting base 1 be electrically connected, to guarantee the normal work of current vortex sensor.
As shown in Figure 5 and Figure 6, the insulating support 21 includes rack body 211, connecting column 212 and connecting plate 213, institute
The one end for stating connecting column 212 is connected with one end of the rack body 211, and the other end is connected with the connecting plate 213, the branch
The winding slot is surrounded between frame ontology 211, connecting column 212 and the connecting plate 213, the rack body 211 is in cuboid
Shape, the connecting column 212 is cylindrical, and the connecting plate 213 is in square plate shape, one end of the connecting column 212 and the bracket
One end of ontology 211 is fixedly connected, and the other end is fixedly connected with the connecting plate 213, connecting plate 213 and rack body 211 it
Between and be located at the outside of the connecting column 212 and form the winding slot of annular, enameled wire is wound on the outside of the connecting column 212
The inductance coil 22 is formed, wherein insulating support 21 plays the role of insulation protection using ceramic material, due to inductance mechanism 2
Space for individual mechanism, winding slot is bigger, therefore in winding inductance coil 22, enameled wire does not allow frangibility, can
Difficulty of processing is reduced, production efficiency is improved, saves manufacturing cost.
Preferably, as shown in Figures 1 to 4, the pad 215 is set to the rack body 211 relative to the connecting column
The length of 212 other end, the lead-out wire of such inductance coil 22 is bigger, and inductance coil 22 and pad 215 are when fixed
Operating space is bigger, can further reduce the difficulty that 22 lead-out wire of inductance coil is fixedly connected with pad 215.
As shown in Figures 1 to 4, the rack body 211 be equipped with metallic channel 217, the extraction of the inductance coil 22
Line passes through metallic channel 217 and is connected with the pad 215, and the lead-out wire of the inductance coil 22 is placed in the metallic channel 217,
By the lead-out wire of 217 further protection inductance coil 22 of metallic channel, the lead-out wire for reducing inductance coil 22 is damaged by scraping collision
Probability, while the lead-out wire of inductance coil 22 can be fixed with the pad 215 by welding, as passed through soldering
Mode and pad 215 are fixed, naturally it is also possible to using the other fixed forms of such as bonding.
As shown in Figure 1 to Figure 3, the metallic channel 217 is equipped with two, and two metallic channels 217 are set to the bracket sheet
One end of the upper surface of body 211, the metallic channel 217 is connected to the winding slot, the other end and the fixed company of the pad 215
It connects, since each inductance coil 22 is there are two lead-out wire, the lead-out wire of each inductance coil 22 is right in the application
A winding slot is answered, two lead-out wires is can be avoided and mutually winds, lead-out wire is caused to fracture, the in addition setting of metallic channel 217 is being propped up
It is more convenient in metallic channel 217 that the upper surface lead-out wire of frame ontology 211 is placed on, and reduces task difficulty, improves inductance mechanism 2
Production efficiency, saved production cost, since metallic channel 217 is located at upside, when lead-out wire is put into operation, working space is more
Greatly, the probability for drawing thread breakage can be further decreased；In addition the pad 215 also is provided with two, and each lead-out wire is equal
A corresponding individual pad 215.
As shown in Figure 1 to Figure 3, the outside of the inductance coil 22 is equipped with magnetic glue shielded layer 216, outside toroidal inductor 22
The glue containing magnetic conduction particle is filled in portion and position winding slot, is made into magnetic conduction but nonconducting magnetic glue shielded layer 216, is passed through magnetic glue
Shielded layer 216 completes the function of insulation and magnetic conduction.
Optionally, the mounting base 1 is circular mounting plate, and the middle part of the mounting plate forms one and is used for determinand
The circular through hole that body passes through, the inductance mechanism 2 be equipped with it is multiple, multiple inductance mechanisms 2 are distributed in the upper of mounting plate
Surface, and the inductance coil 22 of each inductance mechanism 2 is respectively positioned on the upside of the circular through hole；The terminals be set on
Binding post on the mounting plate, an inductance mechanism 2 correspond to two binding posts, inductance in each inductance mechanism 2
Two lead-out wires of coil 22 with corresponding pad 215 be electrically connected, and each pad 215 can by conducting wire with it is corresponding
The binding post electrical connection.
Preferably, as shown in Figure 1 to Figure 3, there are four the inductance mechanism 2 is set, four inductance mechanisms 2 are opposite two-by-two
Setting, and be uniformly distributed in the upper surface of the mounting plate, such four inductance mechanisms 2 are respectively used to detection four up and down
The displacement signal in orientation, measurement result are more accurate.
In another example of the invention, the mounting base 1 is circuit board, and the circuit board is equipped with control circuit and institute
Terminals are stated, two lead-out wires of inductance coil 22 are electrically connected with the terminals on the circuit board in the inductance mechanism 2；Such as
Shown in Fig. 1 to Fig. 3, circular through hole 11 is again provided in the middle part of the circuit board, the circuit board is equipped with control route and connects
Line end, the terminals can be wiring contact, and the lead-out wire of such inductance coil 22 can be connect with terminals, and then directly
It connects to the control circuit, system is controlled according to the signal that inductance mechanism 2 detects by control circuit, wherein the circuit
Plate is annulus plate structure, while the inductance mechanism 2 also is provided with multiple, multiple fixations of inductance mechanisms 2 in this example
In the upper surface of the circuit board；Further, there are four the inductance mechanism 2 is set, four inductance mechanisms 2 are opposite two-by-two
Setting, and be uniformly distributed in the upper surface of the circuit board, such four inductance mechanisms 2 are respectively used to detection four up and down
The displacement signal in orientation, measurement result are more accurate；Optionally, the electromagnetic coil in each inductance mechanism 2 is respectively positioned on institute
State the upside of circular through hole 11.
The present invention also provides a kind of magnetic suspension motors, determine including shell, shaft, the motor being sheathed on the outside of the shaft
Son and magnetic suspension support component and current vortex sensor described in any of the above embodiments, the current vortex sensor are described for detecting
The displacement of shaft；The shaft, motor stator, magnetic suspension support component and sensor are set to the shell；The magnetcisuspension
Over draft support component is used to support the shaft, and one end of the shell is equipped with control circuit board；The magnetic suspension support component is used
In the support shaft；The magnetic suspension support component includes multiple magnetizing coils, and the lead of the multiple magnetizing coil is logical
It crosses main line collecting plate to connect with the control circuit board, the main line collecting plate is flexible circuit board.Magnetic suspension electricity provided by the invention
Machine is using current vortex sensor described in above-described embodiment, therefore its measurement structure is more accurate, and manufacturing cost is lower.
The present invention also provides a kind of processing technologys of current vortex sensor as described above, comprising the following steps:
S1, prefabricated insulating support 21, and mounting groove 214 is formed on the insulating support 21；
S2, forms inductance coil 22 in the mounting groove 214, and the insulating support 21 and the inductance coil 22 are constituted
The inductance mechanism 2；
Inductance mechanism 2 in step S2 is fixed in the mounting base 1 by S3, by the lead-out wire of inductance mechanism and installation
Terminals electrical connection on seat 1, forms the current vortex sensor.
Wherein in step sl, it is integrally formed to form the insulating support 21 using ceramic material, such as passes through injection molding manner
It is integrally formed, the insulating support 21 can also be manufactured using other modes in this application certainly.
Optionally, step S2 includes: S2-1, forms the inductance coil 22 in mounting groove 214 using enameled wire, will paint
The outside that envelope curve is successively wound around connecting column 212 forms inductance coil 22 and draws the lead-out wire of inductance coil 22；S2-2,
The glue containing magnetic conduction particle is filled in outside in mounting groove 214 and positioned at the inductance coil 22, is made into magnetic conduction but is not led
The magnetic glue shielded layer 216 of electricity.
Optionally, the processing technology of the current vortex sensor, further includes: step S4, it is solid on the insulating support 21
Determine pad 215 and metallic channel 217, the pad 215 is fixed on the rack body 211 in the one of the gorgeous inductance coil 22
End, the pad 215 can be fixedly connected by way of welding, clamping or bonding with the rack body 211, then institute
The upper surface for stating rack body 211 opens up winding slot, when the winding slot can be the integrated molding of rack body 211, in bracket
It is formed on ontology 211, then the lead-out wire of inductance coil 22 is put into winding slot, and be fixedly connected with the pad 215, institute
Stating can be by the way of welding when lead-out wire is connect with pad 215, can also be by the way of glue bonding.
In conclusion current vortex sensor provided by the invention includes mounting base and inductance coil, including mounting base and solid
The inductance mechanism being scheduled in the mounting base, the inductance mechanism include insulating support and inductance coil, first by inductance coil around
Inductance mechanism is formed in winding slot on insulating support, is then fixed in the mounting base by inductance mechanism, is kept away in this way
The problem of inductance coil lead-out wire easily snaps off caused by winding inductance coil in mounting base is because of narrow space is exempted from, for electricity
The fixation of eddy current sensor is simpler, and structure is simple, compact, small in size, is advantageously implemented and is done using the current vortex sensor
The miniaturization of the equipment of displacement detecting improves the whole mechanical positioning accuracy of equipment；
In addition the lead-out wire of inductance coil is electrically connected with the terminals in mounting base, and working space is bigger, attended operation letter
It is single, it is convenient for connection operation, avoiding because lead-out wire volume size is too small causes lead-out wire to connect difficult problem with terminals,
External cable is electrically connected by terminals with lead-out wire, and this makes it possible to keep away the junction of the existing cable of solution and coil easily
The connection of the problem of disconnection, lead-out wire and terminals is relatively reliable.
In the description of the present invention, it should be noted that the orientation or positional relationship of the instructions such as term " on ", "lower" is base
In orientation or positional relationship shown in the drawings, it is merely for convenience of description of the present invention and simplification of the description, rather than indication or suggestion
Signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this
The limitation of invention.In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relatively heavy
The property wanted.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation " " connects
It is logical ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be direct connection, can also be can be by intermediary indirect communication
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.In addition, in the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or two
More than.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (15)
1. a kind of current vortex sensor, it is characterised in that: including mounting base and the inductance mechanism being fixed in the mounting base, institute
Stating inductance mechanism includes insulating support and inductance coil, and the insulating support is equipped with winding slot, and the inductance coil is wound around
In the winding slot, the mounting base is equipped with terminals, and the lead-out wire of the inductance coil is electrically connected with the terminals.
2. current vortex sensor according to claim 1, it is characterised in that: the inductance mechanism further includes pad, described
The lead-out wire of inductance coil is connected with the pad, and the pad is electrically connected with the terminals.
3. current vortex sensor according to claim 2, it is characterised in that: the insulating support includes rack body, connects
Column and connecting plate are connect, one end of the connecting column is connected with one end of the rack body, and the other end is connected with the connecting plate,
The winding slot is surrounded between the rack body, connecting column and the connecting plate.
4. current vortex sensor according to claim 3, it is characterised in that: it is opposite that the pad is set to the rack body
In the other end of the connecting column.
5. current vortex sensor according to claim 3, it is characterised in that: the rack body is equipped with metallic channel,
The lead-out wire of the inductance coil passes through metallic channel and is connected with the pad.
6. current vortex sensor according to claim 5, it is characterised in that: the metallic channel is equipped with two, the pad
It is arranged in a one-to-one correspondence with the metallic channel, two metallic channels are set to the upper surface of the rack body, the metallic channel
One end is connected to the winding slot, and the other end is connected with the corresponding pad.
7. current vortex sensor according to claim 1, it is characterised in that: the outside of the inductance coil is equipped with magnetic glue screen
Cover layer.
8. current vortex sensor according to any one of claims 1 to 7, it is characterised in that: the mounting base is annular shape
Mounting plate, the middle part of the mounting plate forms one for circular through hole that object under test passes through；
The inductance mechanism is equipped with multiple, and multiple inductance mechanisms are distributed in the upper surface of mounting plate, and each described
The inductance coil of inductance mechanism is respectively positioned on the upside of the circular through hole；The terminals are the wiring on the mounting plate
Column, corresponding two binding posts of the inductance mechanism, in each inductance mechanism two lead-out wires of inductance coil with
Corresponding two binding post electrical connections.
9. current vortex sensor according to claim 8, it is characterised in that: there are four the inductance mechanism is set, four institutes
Inductance mechanism is stated to be oppositely arranged and be uniformly distributed in the upper surface of the mounting plate two-by-two.
10. current vortex sensor according to any one of claims 1 to 7, it is characterised in that: the mounting base is circuit
Plate, the circuit board are equipped with control circuit and the terminals, two lead-out wire institutes of inductance coil in the inductance mechanism
State the terminals electrical connection on circuit board.
11. a kind of magnetic suspension motor, it is characterised in that: including shell, shaft, the motor stator being sheathed on the outside of the shaft and
Magnetic suspension support component and current vortex sensor as described in any one of claim 1 to 10, the current vortex sensor are used for
Detect the displacement of the shaft；The shaft, motor stator, magnetic suspension support component and sensor are set to the shell
It is interior；The magnetic suspension support component is used to support the shaft.
12. a kind of processing technology of current vortex sensor as described in claim 1, which comprises the following steps:
S1, prefabricated insulating support, and mounting groove is formed on the insulating support；
S2, forms inductance coil in the mounting groove, and the insulating support and the inductance coil constitute the inductance mechanism；
Inductance mechanism in step S2 is fixed in the mounting base by S3, will be on the lead-out wire and mounting base of inductance mechanism
Terminals electrical connection, forms the current vortex sensor.
13. the processing technology of eddy current sensor according to claim 12, it is characterised in that: in step S1, using ceramics
Material is integrally formed to form the insulating support.
14. the processing technology of eddy current sensor according to claim 12, it is characterised in that: step S2 includes:
S2-1 forms the inductance coil using enameled wire in mounting groove；
S2-2 fills the glue containing magnetic conduction particle in installation slot position and positioned at the outside of the inductance coil, is made into magnetic conduction
But nonconducting magnetic glue shielded layer.
15. the processing technology of eddy current sensor according to claim 12, it is characterised in that: further include:
The lead-out wire of inductance coil is passed through metallic channel and weldering by step S4, anchor pad and metallic channel on the insulating support
Disk is connected, and the lead-out wire of inductance coil is connected by pad with the terminals in mounting base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810660313.8A CN109029231A (en) | 2018-06-25 | 2018-06-25 | A kind of current vortex sensor and its processing technology and a kind of magnetic suspension motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810660313.8A CN109029231A (en) | 2018-06-25 | 2018-06-25 | A kind of current vortex sensor and its processing technology and a kind of magnetic suspension motor |
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| CN109029231A true CN109029231A (en) | 2018-12-18 |
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| CN201810660313.8A Pending CN109029231A (en) | 2018-06-25 | 2018-06-25 | A kind of current vortex sensor and its processing technology and a kind of magnetic suspension motor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111623700A (en) * | 2020-07-31 | 2020-09-04 | 山东天瑞重工有限公司 | Magnetic suspension bearing inductance type displacement sensor |
| CN113063340A (en) * | 2021-03-30 | 2021-07-02 | 天津飞旋科技股份有限公司 | Inductance type displacement sensor |
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| CN113063340A (en) * | 2021-03-30 | 2021-07-02 | 天津飞旋科技股份有限公司 | Inductance type displacement sensor |
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