CN208386352U - A kind of current vortex sensor and a kind of magnetic suspension motor - Google Patents
A kind of current vortex sensor and a kind of magnetic suspension motor Download PDFInfo
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- CN208386352U CN208386352U CN201820987648.6U CN201820987648U CN208386352U CN 208386352 U CN208386352 U CN 208386352U CN 201820987648 U CN201820987648 U CN 201820987648U CN 208386352 U CN208386352 U CN 208386352U
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- mounting groove
- binding post
- current vortex
- vortex sensor
- inductance coil
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- 239000000725 suspension Substances 0.000 title claims abstract description 22
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- 238000004804 winding Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000005339 levitation Methods 0.000 abstract description 2
- 238000012545 processing Methods 0.000 abstract description 2
- 239000000306 component Substances 0.000 description 8
- 230000005611 electricity Effects 0.000 description 6
- 239000000523 sample Substances 0.000 description 6
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- 239000004020 conductor Substances 0.000 description 2
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- 238000001746 injection moulding Methods 0.000 description 2
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- 230000007774 longterm Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model relates to magnetic levitation technology fields, and in particular to a kind of current vortex sensor and a kind of magnetic suspension motor.Current vortex sensor provided by the utility model includes mounting base and inductance coil, the installation is taken equipped with mounting groove, inductance coil can be directly placed into the mounting groove and fixed, eliminate the processing step of coil winding skeleton, it is simpler for the fixation of current vortex sensor, structure is simple, compact, small in size；In addition, binding post is equipped in the upper surface of the mounting base, binding post is located at the outside of the mounting groove, working space is bigger, the lead-out wire of inductance coil stretches out the mounting groove and can directly connect with binding post in this way, and attended operation is simple, is convenient for connection operation, avoiding because lead-out wire volume size is too small causes lead-out wire to connect difficult problem with binding post, and the connection of lead-out wire and binding post is relatively reliable.
Description
Technical field
The utility model relates to magnetic levitation technology fields, and in particular to a kind of current vortex sensor and a kind of magnetic suspension electricity
Machine.
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.
Utility model content
(1) the technical problem to be solved by the utility model is to existing Eddy current sensor coil and cable fix tightly
By conveniently, being easy to disconnect in junction, and the volume of current vortex sensor is larger.
(2) technical solution
In order to solve the above-mentioned technical problem, the utility model provides a kind of current vortex sensor, including mounting base and electricity
Feel coil, the upper surface of the mounting base is equipped with mounting groove, and the inductance coil is fixed in the mounting groove, the mounting base
Upper surface be equipped with binding post, the lead-out wire of the inductance coil is electrically connected with the binding post.
The utility model has the beneficial effects that current vortex sensor provided by the utility model includes mounting base and inductor wire
Circle, the installation are taken equipped with mounting groove, and inductance coil can be directly placed into the mounting groove and fix, and are eliminated coil and are twined
Simpler for the fixation of current vortex sensor around the processing step of skeleton, structure is simple, compact, small in size, is conducive to reality
The miniaturization of the equipment of displacement detecting is now done using the current vortex sensor, improves the whole mechanical positioning accuracy of equipment；In addition,
The upper surface of the mounting base is equipped with binding post, and the lead-out wire of such inductance coil stretches out the mounting groove can directly and wiring
Column connection, the lead-out wire of inductance coil more convenient can be connected with binding post, since binding post is located at the mounting groove
Outside, working space is bigger, and attended operation is simple, is convenient for connection operation, and avoiding causes because lead-out wire volume size is too small
Lead-out wire connect difficult problem with binding post, and External cable is electrically connected by binding post with lead-out wire, and this makes it possible to keep away solution
The problem of junction of certainly existing cable and coil easily disconnects, the connection of lead-out wire and binding post is relatively reliable.
Further, the mounting base is annular in shape, and inside forms one for the circular through hole that object under test passes through, institute
State mounting groove be equipped with it is multiple, multiple mounting grooves are distributed in the edge of the circular through hole, and multiple mounting grooves are equal
It is connected to the circular through hole, the mounting groove and inductance coil correspond.
Further, there are four the mounting groove is set, four mounting grooves are oppositely arranged two-by-two, each mounting groove
Inside it is equipped with the inductance coil.
Further, four mounting grooves are uniformly distributed in the circumferential direction of the inside edge of the circular through hole.
Further, the outgoing line position edge of the mounting groove is all provided with there are two binding post, is mounted in the mounting groove
Two lead-out wires of the inductance coil are electrically connected with two binding posts respectively.
Further, the binding post is fixed on the mounting base upper surface and is located at the side of the mounting groove, described
Binding post and the circular through hole are located at the opposite sides of the mounting groove.
Further, the mounting groove has upward the first opening and the second opening towards circular through hole, and described the
Two openings are connected to the circular through hole, and described first is provided with the upper surface of the mounting base.
Further, the lead-out wire is mutually bonded with the corresponding binding post.
Further, the binding post is bonded or is connected to the upper surface of the mounting base.
The utility model additionally provides a kind of magnetic suspension motor, including shell, shaft, the electricity being sheathed on the outside of the shaft
Machine stator and magnetic suspension support component and current vortex sensor described in any of the above embodiments, the current vortex sensor is for detecting
The displacement of the shaft；The shaft, motor stator, magnetic suspension support component and sensor are set to the shell；It is described
Magnetic suspension support component is used to support the shaft.
Detailed description of the invention
The advantages of the utility model is above-mentioned and/or additional aspect will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 is the structural schematic diagram at one visual angle of current vortex sensor described herein；
Fig. 2 is the structural schematic diagram at another visual angle of current vortex sensor described herein.
The wherein corresponding relationship in Fig. 1 and Fig. 2 between appended drawing reference and component names are as follows:
1, mounting base, 11, mounting groove, the 111, first opening, the 112, second opening, 12, binding post, 2, inductance coil, 21,
Lead-out wire.
Specific embodiment
In order to be more clearly understood that the above objects, features, and advantages of the utility model, with reference to the accompanying drawing and have
The utility model is further described in detail in body embodiment.It should be noted that in the absence of conflict, this Shen
The feature in embodiment and embodiment please can be combined with each other.
As shown in 1 and Fig. 2, the utility model provides a kind of current vortex sensor, including mounting base 1 and inductance coil 2,
The upper surface of the mounting base 1 is equipped with mounting groove 11, and the inductance coil 2 is fixed in the mounting groove 11, the mounting base 1
Upper surface be equipped with binding post 12, the lead-out wire 21 of the inductance coil 2 is electrically connected with the binding post 12.
Current vortex sensor provided by the utility model includes mounting base 1 and inductance coil 2, and the installation, which is taken, is equipped with peace
Tankage 11, inductance coil 2 can be directly placed into the mounting groove 11 and fix, and eliminate the technique step of coil winding skeleton
Suddenly, 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, in the mounting base 1
Upper surface be equipped with binding post 12, the lead-out wire 21 of such inductance coil 2 stretch out the mounting groove 11 can directly with binding post 12
Connection, the lead-out wire 21 of inductance coil 2 more convenient can be connected with binding post 12, since binding post 12 is located at the installation
The outside of slot 11, working space is bigger, and attended operation is simple, is convenient for connection operation, avoids because of 21 volume size of lead-out wire
Too small that lead-out wire 21 is caused to connect difficult problem with binding post 12, External cable is electrically connected by binding post 12 with lead-out wire 21
It connects, 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 21 and binding post 12
Connection it is relatively reliable.
Preferably, as depicted in figs. 1 and 2, the mounting base 1 is annular in shape, and inside forms one and wears for object under test
The circular through hole crossed, the mounting groove 11 be equipped with it is multiple, multiple mounting grooves 11 are distributed in the side of the circular through hole
Edge, multiple mounting grooves 11 are connected to the circular through hole, and the mounting groove 11 is corresponded with inductance coil 2, due to
The mounting groove 11 is provided with the mounting base 1 close to the side of circular through hole, therefore inductance coil 2 is being fixed on the peace
When in tankage 11, it can be put into the mounting groove 11 from the side of circular through hole by the inductance coil 2, working space is more
Greatly, for the easier for installation of inductance coil 2, wherein the size of mounting groove described herein 11 is equal or slightly larger than described
The size of inductance coil 2, in this way when inductance coil 2 is put into the mounting groove 11, the side wall of mounting groove 11 can block institute
Inductance coil 2 is stated so that inductance coil 2 to be fixed, preferably after the inductance coil 2 is put into the mounting groove 11, is led to
It crosses mode for dispensing glue the inductance coil 2 is bonded in the mounting groove 11 and be fixed, electricity can be further increased in this way
Feel fixed effect of the coil 2 in mounting groove 11, inductance coil 2 is fixed more firm.
As depicted in figs. 1 and 2, there are four the mounting groove 11 is set, four mounting grooves 11 are oppositely arranged two-by-two, each
The inductance coil 2 is equipped in the mounting groove 11；Preferably, four mounting grooves 11 are in the circular through hole
It is uniformly distributed in the circumferential direction of inside edge, the central angle between mounting groove 11 two neighboring in this way is 90 degree, is pacified by four
Four inductance coils 2 in tankage 11 can measure the displacement information in four orientation up and down, and measurement result is more accurate.
As depicted in figs. 1 and 2, the outgoing line position edge of the mounting groove 11 is all provided with there are two binding post 12, is mounted on
Two lead-out wires 21 of the inductance coil 2 are electrically connected with two binding posts 12 respectively in the mounting groove 11；Inductance coil 2
Lead-out wire 21 direct very little and intensity it is very low, if the length of lead-out wire 21 is too long, it is easy to lead-out wire 21 occur and fracture
The problem of, the inductance coil 2 in each mounting groove 11 is electrically connected with corresponding binding post 12, wherein right with the mounting groove 11
Two binding posts 12 that should be arranged are fixed on the upper surface of the mounting base 1 at the marginal position of the mounting groove 11, this
The length for 2 lead-out wire 21 of inductance coil that sample is stretched out from mounting groove 11 is shorter, can be avoided 2 lead-out wire 21 of inductance coil fracture,
Damage.
As depicted in figs. 1 and 2, the binding post 12 is fixed on 1 upper surface of mounting base and is located at the mounting groove 11
Side, the binding post 12 is located at the opposite sides of the mounting groove 11, such stretching of lead-out wire 21 with the circular through hole
It can directly be connect with the binding post 12 after the mounting groove 11, the length of the stretching of lead-out wire 21 be further decreased, to protect
Shield lead-out wire 21 is not damaged.
As depicted in figs. 1 and 2, the mounting groove 11 has the first upward opening 111 and second towards circular through hole
Opening 112, second opening 112 are connected to the circular through hole, and first opening 111 is provided with the mounting base 1
Upper surface, when the inductance coil 2 is installed in the mounting groove 11, outer end offsets with 11 inner sidewall of mounting groove, and two
Side and the two side walls of the mounting groove 11 offset, and inner end is opened towards the circular through hole namely the outer end by second
Mouth 112 is connected to the circular through hole, while the first opening 111 is provided in the mounting base 1, and the inductance coil 2 draws
Outlet 21 can directly extend out to the upside of the upper surface of the mounting base 1 by the first opening 111, then lead-out wire 21 and institute
The electrical connection of binding post 12 is stated, structure is simpler, and the extraction of lead-out wire 21 is more convenient, connects convenient for lead-out wire 21 and binding post 12
It connects.Simultaneously during inductance coil 2 is put into mounting groove 11, either passing through the first opening 111 from mounting base 1
Upside is put into, and can also be put into from the opening of second on circular through hole side wall 112, how the side of inductance coil 2 is fixed more
It is convenient to add.
Wherein the binding post 12 is metal material, and the mounting base 1 is insulating materials such as plastics etc., therefore binding post
12 can be bonded in the upper surface of the mounting base 1 by glue, more convenient for the fixation of binding post 12 in this way；Certainly,
The binding post 12 described in the application Zhang Gong is also possible to fix by other means, such as clamping, grafting, as long as can be realized this
Binding post 12 is fixed on the purpose of 1 upper surface of mounting base in application, just also can be realized the design philosophy of the utility model,
It should belong to the protection scope of the utility model.
Preferably, the lead-out wire 21 of the inductance coil 2 is bonded on the binding post 12 by glue in this application,
It is convenient to operate, and it is firm to connect, and is convenient for operation；It should be noted that the lead-out wire 21 is also possible to pass through tin in this application
The mode of weldering is fixedly connected with the binding post 12, equally can be realized the purpose of the application, and objective is practical without departing from this
Novel design philosophy, should belong to the protection scope of the utility model.
The utility model additionally provides a kind of magnetic suspension motor, including shell, shaft, the electricity being sheathed on the outside of the shaft
Machine stator and magnetic suspension support component and current vortex sensor described in any of the above embodiments, the current vortex sensor is for detecting
The displacement of the shaft；The shaft, motor stator, magnetic suspension support component and sensor are set to the shell；It is described
Magnetic suspension support component is used to support the shaft, and one end of the shell is equipped with control circuit board；The magnetic suspension support group
Part is used to support the shaft；The magnetic suspension support component includes multiple magnetizing coils, the lead of the multiple magnetizing coil
It is connect by main line collecting plate with the control circuit board, the main line collecting plate is flexible circuit board.
Illustrate the manufacturing process of the current vortex sensor provided by the utility model below.
Circular mounting base 1 is manufactured first, four mounting grooves 11 is opened up in the mounting base 1, wherein the installation
Seat 1 can be by injection molding, in this way can be when being molded mounting base 1, directly by four 11 injection moldings of mounting groove；Then exist
The upper surface link column 12 of mounting base 1；Inductance coil 2 is put into mounting groove 11 from the first opening 111 or the second opening 112
It is interior and fixed by dispensing, then lead-out wire 21 and binding post 12 are adhesively fixed, complete the manufacture of entire current vortex sensor.
In conclusion current vortex sensor provided by the utility model includes mounting base and inductance coil, the installation is sat
It is equipped with mounting groove, inductance coil can be directly placed into the mounting groove and fixed, to eliminate coil winding skeleton technique
Step, 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, in the mounting base
Upper surface is equipped with binding post, and the lead-out wire of such inductance coil, which stretches out the mounting groove, directly to be connect with binding post, inductance
The lead-out wire of coil more convenient can be connected with binding post, and since binding post is located at the outside of the mounting groove, operation is empty
Between it is bigger, attended operation is simple, is convenient for connection operation, and avoiding because lead-out wire volume size is too small leads to lead-out wire and wiring
The difficult problem of column connection, External cable are electrically connected by binding post with lead-out wire, and this makes it possible to keep away to solve existing cable
The connection of the problem of easily disconnecting with the junction of coil, lead-out wire and binding post 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"
To be based on the orientation or positional relationship shown in the drawings, it is merely for convenience of describing the present invention and simplifying the description, without referring to
Show or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot manage
Solution is limitations of the present invention.In addition, term " first ", " second " are used for description purposes only, and should not be understood as indicating
Or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connection ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be direct connection, can also by intermediary indirect communication,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.In addition, in the description of the present invention, unless otherwise indicated, " multiples' " contains
Justice is two or more.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (10)
1. a kind of current vortex sensor, it is characterised in that: the upper surface of mounting base and inductance coil, the mounting base is equipped with installation
Slot, the inductance coil are fixed in the mounting groove, and the upper surface of the mounting base is equipped with binding post, the inductance coil
Lead-out wire is electrically connected with the binding post.
2. current vortex sensor according to claim 1, it is characterised in that: the mounting base is annular in shape, and inside is formed
One circular through hole passed through for object under test, the mounting groove are equipped with multiple, and multiple mounting grooves are distributed in institute
The edge of circular through hole is stated, multiple mounting grooves are connected to the circular through hole, and the mounting groove and inductance coil are one by one
It is corresponding.
3. current vortex sensor according to claim 2, it is characterised in that: there are four the mounting groove is set, described in four
Mounting groove is oppositely arranged two-by-two, and the inductance coil is equipped in each mounting groove.
4. current vortex sensor according to claim 3, it is characterised in that: four mounting grooves are in the circular through hole
Inside edge circumferential direction on be uniformly distributed.
5. current vortex sensor according to claim 2, it is characterised in that: the outgoing line position edge of the mounting groove is equal
If two lead-out wires for being mounted on the inductance coil in the mounting groove are electric with two binding posts respectively there are two binding post
Connection.
6. current vortex sensor according to claim 3, it is characterised in that: the binding post is fixed in the mounting base
Surface and the side for being located at the mounting groove, the binding post and the circular through hole are located at the opposite sides of the mounting groove.
7. current vortex sensor according to claim 3, it is characterised in that: the mounting groove has the first upward opening
With the second opening towards circular through hole, second opening is connected to the circular through hole, and described first is provided with institute
State the upper surface of mounting base.
8. current vortex sensor according to claim 2, it is characterised in that: the lead-out wire and the corresponding binding post phase
Bonding.
9. current vortex sensor according to claim 6, it is characterised in that: the binding post bonding is connected to the peace
Fill the upper surface of seat.
10. 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 9, the current vortex sensor is for examining
Survey the displacement of the shaft；The shaft, motor stator, magnetic suspension support component and sensor are set to the shell；Institute
It states magnetic suspension support component and is used to support the shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820987648.6U CN208386352U (en) | 2018-06-25 | 2018-06-25 | A kind of current vortex sensor and a kind of magnetic suspension motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820987648.6U CN208386352U (en) | 2018-06-25 | 2018-06-25 | A kind of current vortex sensor and a kind of magnetic suspension motor |
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| Publication Number | Publication Date |
|---|---|
| CN208386352U true CN208386352U (en) | 2019-01-15 |
Family
ID=64965546
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820987648.6U Active CN208386352U (en) | 2018-06-25 | 2018-06-25 | A kind of current vortex sensor and a kind of magnetic suspension motor |
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| Country | Link |
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| CN (1) | CN208386352U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110500278A (en) * | 2019-07-02 | 2019-11-26 | 代艳 | A kind of magnetic suspension air conditioner refrigerating compressor |
| CN111023957A (en) * | 2019-12-20 | 2020-04-17 | 北京航空航天大学 | High-temperature-resistant radial displacement sensor device |
| CN113063340A (en) * | 2021-03-30 | 2021-07-02 | 天津飞旋科技股份有限公司 | Inductance type displacement sensor |
-
2018
- 2018-06-25 CN CN201820987648.6U patent/CN208386352U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110500278A (en) * | 2019-07-02 | 2019-11-26 | 代艳 | A kind of magnetic suspension air conditioner refrigerating compressor |
| CN110500278B (en) * | 2019-07-02 | 2020-12-04 | 日信电气股份有限公司 | Magnetic suspension air conditioner refrigeration compressor |
| CN111023957A (en) * | 2019-12-20 | 2020-04-17 | 北京航空航天大学 | High-temperature-resistant radial displacement sensor device |
| CN111023957B (en) * | 2019-12-20 | 2021-05-28 | 北京航空航天大学 | High-temperature-resistant radial displacement sensor device |
| 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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Effective date of registration: 20200603 Address after: 100095 Unit 301-B146, Building 17, No. 3 Gaolizhang Road, Haidian District, Beijing Patentee after: Beijing Kuntengmig Technology Co.,Ltd. Address before: 518000 1B1704, Jinji Road, Nanshan street, Shenzhen, Guangdong, Nanshan District 1, China Patentee before: SHENZHEN MAGNETIC POWER TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20240112 Address after: Room 1612-06, Building 3, Skywing Business Center, No. 133 Hongtai Road, Shangcheng District, Hangzhou City, Zhejiang Province, 310009 Patentee after: Hangzhou Kuntai Maglev Technology Co.,Ltd. Address before: Room 301-B146, Unit 1, Building 17, Yard 3, Gaolizhang Road, Haidian District, Beijing 100095 Patentee before: Beijing Kuntengmig Technology Co.,Ltd. |
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