CN109812500B - Wiring device of magnetic suspension bearing, compressor and refrigeration equipment - Google Patents
Wiring device of magnetic suspension bearing, compressor and refrigeration equipment Download PDFInfo
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- CN109812500B CN109812500B CN201910130607.4A CN201910130607A CN109812500B CN 109812500 B CN109812500 B CN 109812500B CN 201910130607 A CN201910130607 A CN 201910130607A CN 109812500 B CN109812500 B CN 109812500B
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- 239000000725 suspension Substances 0.000 title claims abstract description 39
- 238000005057 refrigeration Methods 0.000 title claims description 9
- 238000004804 winding Methods 0.000 claims abstract description 19
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 15
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 239000011810 insulating material Substances 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
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- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The invention discloses a wiring device, a compressor and refrigerating equipment of a magnetic suspension bearing, wherein the magnetic suspension bearing comprises a control winding with a first wiring terminal and a second wiring terminal, a first conductive structure and a second conductive structure are arranged in the wiring device, the first conductive structure is in conductive connection with the first wiring terminal, and the second conductive structure is in conductive connection with the second wiring terminal; the first conductive structure is provided with an external connection end connected with an external power supply. According to the wiring device of the magnetic suspension bearing, the wiring and lead operation steps are simplified, the conductive structure is arranged in the wiring device, the problem that the lead is exposed is avoided, the service life of the lead is prolonged, and the operation reliability of the magnetic suspension bearing is improved.
Description
Technical Field
The invention relates to the technical field of magnetic suspension bearings, in particular to a wiring device of a magnetic suspension bearing, a compressor and refrigeration equipment.
Background
The wiring device of the existing hybrid axial magnetic suspension bearing mainly comprises two axial control windings, four winding outgoing lines, a permanent magnet, an iron core, a thrust disc and other components, wherein each axial control winding is respectively connected with two winding outgoing lines. Because of the special structure form of the hybrid axial thrust bearing, the permanent magnet needs to have an independent and complete magnetic circuit in the iron core, the whole structure is in a closed form when seen from the section, two control windings need to be connected in series, one connecting mode is used for connecting a common end in the bearing, then the remaining two power lines of the control windings are led out, the other connecting mode is used for leading out all four lead-out wires of the control windings out of the bearing, wherein two lead-out wires are connected in series to form the common end, and the other two lead-out wires are used as power lead-out wires. Although both structural forms solve the wiring and lead-out problems of the hybrid magnetic suspension thrust bearing, the two schemes have complicated wiring and lead-out operations, lead-out wires are led out directly, the lead-out wires are exposed outside and are difficult to fix, when the magnetic bearing is used in a vibration environment or a compressor, the lead-out wires can be contacted and rubbed with nearby parts due to vibration or scouring of air flow, the lead-out wires are easy to damage, and the durability and the structural reliability of the whole bearing are greatly reduced.
Disclosure of Invention
The first object of the present invention is to provide a wiring device for a magnetic suspension bearing, which solves the problems that the existing lead wire mode of the magnetic suspension bearing is complex to operate, and the lead wire is exposed and difficult to fix and easy to damage.
In order to achieve the above purpose, the technical scheme provided by the invention is as follows: the wiring device of the magnetic suspension bearing comprises a control winding with a first wiring terminal and a second wiring terminal, a first conductive structure and a second conductive structure are arranged in the wiring device, the first conductive structure is in conductive connection with the first wiring terminal, and the second conductive structure is in conductive connection with the second wiring terminal; the first conductive structure is provided with an external connection end connected with an external power supply.
According to the wiring device of the magnetic suspension bearing, the wiring and lead operation steps are simplified, the conductive structure is arranged in the wiring device, the problem that the lead is exposed is avoided, the service life of the lead is prolonged, and the operation reliability of the magnetic suspension bearing is improved.
In addition, the wiring device of the magnetic suspension bearing according to the embodiment of the invention may further have the following additional technical features:
According to one example of the invention, a first adapter member and a second adapter member are included; the first conductive structure comprises a first conductive piece and a second conductive piece, the first conductive piece is located in the first switching component, the second conductive piece and the second conductive structure are located in the second switching component, two opposite ends of the first conductive piece are respectively connected with the first wiring terminal and the second conductive piece in a conductive mode, one end of the second conductive piece is connected with the first conductive piece, and the other end of the second conductive piece is used for being connected with an external power supply.
According to an example of the present invention, a first routing channel is provided in the first switching component, and the first conductive element is located in the first routing channel; the second switching part is provided with a second wiring channel and a third wiring channel, the second conductive part is positioned in the second wiring channel, and the second conductive structure is positioned in the third wiring channel.
According to an example of the present invention, the first terminal is located in the first routing channel.
According to an example of the present invention, the other end of the second conductive member protrudes out of the second routing channel.
According to an example of the present invention, the magnetic suspension bearing includes two outer cores and an inner core interposed between the two outer cores; the control winding is sleeved outside the inner iron cores and is positioned between the two outer iron cores; the first switching component is mounted on the outer core, and the second switching component is mounted on the inner core.
According to an example of the present invention, the outer core is provided with a first through hole from which the first terminal extends, the first switching member is provided with a first outer protruding portion that is in plug-fit with the first through hole, the first outer protruding portion is provided with a first insertion hole, and the first terminal passes through the first insertion hole and is in plug-fit with the first conductive member.
According to an example of the invention, the outer edge of the outer iron core is provided with a second through hole, the second switching component is located between the two second through holes, the first switching component is provided with a second outer protruding part which is in plug-in fit with the second through holes, the second outer protruding part is provided with a second inserting hole, and one end of the second conductive piece penetrates through the second inserting hole and is in plug-in fit with the first conductive piece.
According to an example of the present invention, the first switching member is electrically connected to the first conductive member and the external power supply, respectively; when the other end of the second conductive piece extends out of the second wiring channel, the third switching component is a socket.
According to an example of the present invention, the first adapting member is detachably connected to the magnetic bearing, and/or the second adapting member is detachably connected to the magnetic bearing.
A second object of the present invention is to provide a compressor having the wiring device according to the above-mentioned technical solution.
A third object of the present invention is to provide a refrigeration apparatus having a compressor as set forth in the above-mentioned technical scheme.
The advantages of the above additional aspects will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a schematic diagram of a wiring device according to an embodiment of the present invention;
FIG. 2 is a schematic diagram (I) illustrating connection between a wiring device and a magnetic suspension bearing according to an embodiment of the present invention;
FIG. 3 is a schematic diagram (II) illustrating connection between a wiring device and a magnetic suspension bearing according to an embodiment of the present invention;
FIG. 4 is a top view of a wiring device and magnetic bearing according to an embodiment of the present invention;
FIG. 5 is a schematic view of a first adapter component according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram (I) of a second adapting unit according to an embodiment of the invention;
FIG. 7 is a schematic structural diagram (II) of a second adapting unit according to an embodiment of the invention;
FIG. 8 is a schematic structural view of a third adapting unit according to an embodiment of the invention;
Fig. 9 is a schematic diagram illustrating connection between the second adapting member and the third adapting member according to an embodiment of the present invention.
In the drawings, the list of components represented by the various numbers is as follows:
1. An outer core; 2. an inner core; 3. a control winding; 4. a first terminal; 5. an external connection end; 6. a first transfer member; 7. a second switching component; 8. a first conductive structure; 9. a second conductive structure; 10. a first conductive member; 11. a second conductive member; 12. a first routing channel; 13. a second wiring channel; 14. a first through hole; 15. a second through hole; 16. a first outer flange; 17. a second outer convex portion; 18. a first jack; 19. a second jack; 20. a third adapter member; 21. a third jack; 22. a lead-out wire; 23. a first connection hole; 24. a first mating hole; 25. a first connector; 26. a second connection hole; 27. a second connector; 28. and controlling the winding bracket.
Description of the embodiments
The principles and features of the present invention are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the invention and are not to be construed as limiting the scope of the invention.
Example 1
Referring to fig. 1-9, this embodiment provides a wiring device for a magnetic suspension bearing, so that, in order to more clearly show the matching relationship between the wiring device and the magnetic suspension bearing, fig. 1 of this embodiment also shows a part of the magnetic suspension bearing, and the relationship between the two is further described by using fig. 2 and 3.
As shown in fig. 1 to 3, the magnetic suspension bearing of this embodiment includes two outer cores 1, two inner cores 2 and a control winding 3, the two outer cores 1 are symmetrically disposed on two sides of the inner core 2, and since the magnetic suspension bearing can be regarded as a symmetrical structure, fig. 2 and 3 of this embodiment only show one outer core 1.
Referring again to fig. 1, the control winding 3 of the present embodiment is disposed between the two outer cores 1 and is mounted on the control winding support 28, and can be seen as being sleeved outside the inner core 2 through the control winding support 28, the control winding 3 has a first terminal 4 and a second terminal (not shown in the drawings), a first conductive structure 8 and a second conductive structure 9 are disposed in the wiring device, the first conductive structure 8 is electrically connected with the first terminal 4, and the second conductive structure 9 is electrically connected with the second terminal; wherein the first conductive structure 8 is provided with an external terminal 5 connected with an external power supply. It should be noted that, the "terminal" in the "terminal" and the "end" in the "external connection" in this embodiment do not necessarily refer to an end portion, but may be a section having a certain length, which may be specifically understood by those skilled in the art according to a specific application scenario.
The wiring device with the structure not only simplifies wiring and lead operation steps, but also is internally provided with the conductive structure, so that the problem that the lead is exposed can not occur, the service life of the lead is prolonged, and the operation reliability of the magnetic suspension bearing is improved.
Based on the above structure, the structural form of the wire connecting device is optimized, so that the wire connecting device is more suitable for the magnetic suspension bearing, is convenient to assemble and disassemble, and the specific structural improvement is described below.
As shown in fig. 1 to 7, the wiring device of the present embodiment specifically includes a first switching member 6 and a second switching member 7, the first switching member 6 is connected to the outer core 1 (or can be regarded as the first switching member 6 being mounted on the outer core 1), and the second switching member 7 is connected to the inner core 2, specifically is mounted on the outer edge (upper side in fig. 1) of the inner core 2; the first conductive structure 8 includes a first conductive member 10 and a second conductive member 11, the first conductive member 10 is located in the first adapting unit 6, the second conductive member 11 and the second conductive structure 9 are located in the second adapting unit 7, opposite ends of the first conductive member 10 are respectively connected with the first terminal 4 and the second conductive member 11 in a conductive manner, one end of the second conductive member 11 is connected with the first conductive member 10, and the other end is used for connecting an external power source, that is, the other end (the outward extending end in the drawing) of the second conductive member 11 is the external connection end 5.
The connection between the first terminal 4 and the first conductive member 10, the connection between the first conductive member 10 and the second conductive member 11, and the like in this embodiment may be implemented in various manners, and the embodiment is preferably a simple and easy-to-implement plugging manner, that is, the first terminal 4 and the first conductive member 10 are in plug-in fit, and the first conductive member 10 is in plug-in fit with the second conductive member 11.
Specifically, a first routing channel 12 (may also be a routing hole) is provided in the first switching component 6, and the first conductive element 10 is located in the first routing channel 12; likewise, the second switching part 7 is provided with a second routing channel 13 and a third routing channel (not shown in the figure), the second conductive element 11 is located in the second routing channel 13, and the second conductive structure 9 is located in the third routing channel. Referring to fig. 7, the second routing channel 13 and the third routing channel are independent from each other, and in order to achieve mutual insulation between the second conductive member 11 and the second conductive structure 9, an insulating material is filled between the second routing channel 13 and the third routing channel, and the insulating material may be a sintered glass body or an epoxy resin.
The above-mentioned conductive structure and conductive member are made of conductive materials, such as metal materials, and may be selected by those skilled in the art according to the needs, so that the present embodiment will not be described in detail with respect to specific materials and structural forms thereof.
Preferably, the first terminal 4 of the present embodiment is located in the first routing channel 12, so that the whole routing is protected in the device, and the first terminal 4 and the first conductive member 10 are connected, in a manner that a first through hole 14 from which the first terminal 4 extends is formed in the outer core 1, a first outer protruding portion is formed on the first switching member 6 and is in plug-in fit with the first through hole 14, a first inserting hole (the first inserting hole can be regarded as a part of the first routing channel 12) is formed in the first protruding portion, and the first terminal 4 passes through the first inserting hole and is electrically connected with the first conductive member 10. Besides the holding wiring end, the first outer convex part mainly acts as the plug-in fit with the outer iron core 1, so that the connection and the positioning of the wiring device on the magnetic suspension bearing are facilitated, and the installation of the wiring device and the magnetic suspension bearing is facilitated.
The first conductive element 10 and the second conductive element 11 are connected by arranging a second through hole 19 at the outer edge of the outer iron core 1, the second switching element 7 is positioned between the two second through holes 19 and is arranged on the outer edge of the inner iron core 2, the first switching element 6 is provided with a second outer convex part which is in plug-in fit with the second through holes 19, the second outer convex part is provided with a second jack, one end of the second conductive element 11 passes through the second jack and is in conductive connection with the first conductive element 10, and the other end of the second conductive element 11 extends out of the second wiring channel 13.
Referring to fig. 1, 8 and 9, in order to facilitate connection with an external power source, the wiring device of this embodiment further includes a third switching member 20, where the third switching member 20 is electrically connected to the second conductive member 11 and the external power source, respectively, and is used to connect the second conductive member 11 with the external power source, specifically, a third jack 21 is provided in the third switching member 20 of this embodiment, and is connected with an outgoing line 22, where the outgoing line 22 is located at one end of the third switching member 20 and connected to an outer end of the second conductive member 11, and an outer end of the outgoing line 22 is directly connected to the power source (not shown in the drawing), and the third switching member 20 may be an existing socket structure.
The first adapting member 6 of this embodiment is detachably connected to the magnetic bearing, and the second adapting member 7 is also detachably connected to the magnetic bearing. Specifically, the middle part of the first connecting component 6 is provided with a first connecting hole 23, the upper part is provided with two first connecting holes, the outer iron core 1 is provided with three first matching holes 24, and the wiring device of the embodiment is also provided with three first connecting pieces 25, and each first connecting piece 25 is detachably connected with the first connecting component 6 and the outer iron core 1 by respectively penetrating the first connecting holes 23 and the first matching holes 24; two second connecting holes 26 are respectively formed on two sides of the second adapting component 7, two second matching holes (not shown in the figure) are formed at the outer edge of the inner core 2, and the wiring device of the embodiment further has two second connecting pieces 27, and the second adapting component 7 and the inner core 2 are detachably connected by passing the second connecting pieces 27 through the second connecting holes 26 and the second matching holes respectively. The first connecting member 25 and the second connecting member 27 may be screws, but may be other structural members capable of achieving detachable connection.
When the wiring device of this embodiment is assembled, the second adapting member 7 is first mounted on the inner core 2, the second adapting member 7 is fixed by the second connecting member 27, then the two first outer protrusions of the two first adapting members 6 are respectively inserted into the two first through holes 14, the two second outer protrusions are respectively inserted into the two second through holes 19, so as to realize the conductive connection between the first terminal 4 and the first conductive member 10, and simultaneously realize the connection between the first conductive member 10 and the second conductive member 11, then the first adapting member 6 and the outer core 1 are relatively fixed by the first connecting member 25, and finally the third adapting member 20 and the second adapting member 7 are connected.
As is clear from the above-mentioned assembly process, the assembly process of the wiring device of this embodiment is simple, and only one plugging step is required to connect the first conductive member 10 with the second conductive member 11 and the first terminal 4, respectively. In addition, the connection of the second conductive structure 9 and the second terminal is not shown in this embodiment, and the connection manner of both may be the same as the connection manner of the first terminal 4 and the first conductive member 10, so this embodiment will not be described here too much.
Example two
The present embodiment provides a compressor having the wiring device and the magnetic suspension bearing as described in the first embodiment, and since the improvement of the compressor of the present embodiment is only the wiring device and the magnetic suspension bearing, and the rest of the structure of the compressor is the same as the prior art, the present embodiment does not describe the drawings of the compressor, nor describes other parts of the compressor, but the person skilled in the art can fully understand the above structure.
Example III
The present embodiment provides a refrigeration apparatus, which may be an air conditioner, having the compressor described in the second embodiment, and similarly, since the improvement of the refrigeration apparatus of the present embodiment is only the wiring device and the magnetic suspension bearing of the compressor, and the rest of the structure of the refrigeration apparatus is the same as the prior art, the present embodiment does not describe the drawings of the refrigeration apparatus.
In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "plurality" is two or more unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and the like are to be construed broadly, and may be, for example, fixedly attached, detachably attached, integrally formed, or the like. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (11)
1. A wiring device of a magnetic suspension bearing, the magnetic suspension bearing comprises a control winding (3) with a first wiring terminal (4) and a second wiring terminal, and is characterized in that a first conductive structure (8) and a second conductive structure (9) are arranged in the wiring device, the first conductive structure (8) is in conductive connection with the first wiring terminal (4), and the second conductive structure (9) is in conductive connection with the second wiring terminal; wherein the first conductive structure (8) is provided with an external connection end (5) connected with an external power supply;
Comprises a first switching part (6) and a second switching part (7); the first conductive structure (8) comprises a first conductive piece (10) and a second conductive piece (11), the first conductive piece (10) is located in the first switching component (6), the second conductive piece (11) and the second conductive structure (9) are located in the second switching component (7), opposite ends of the first conductive piece (10) are respectively connected with the first wiring end (4) and the second conductive piece (11) in a conductive mode, one end of the second conductive piece (11) is connected with the first conductive piece (10), and the other end of the second conductive piece is used for being connected with an external power supply.
2. A wiring device of a magnetic suspension bearing according to claim 1, characterized in that a first wiring channel (12) is provided in the first switching part (6), the first conductive member (10) being located in the first wiring channel (12); the second switching part (7) is provided with a second wiring channel (13) and a third wiring channel, the second conductive part (11) is positioned in the second wiring channel (13), and the second conductive structure (9) is positioned in the third wiring channel.
3. A wiring device for a magnetic bearing according to claim 2, characterized in that the first terminal (4) is located in the first wiring channel (12).
4. A wiring device of a magnetic suspension bearing according to claim 2, characterized in that the other end of the second conductive element (11) extends outside the second wiring channel (13).
5. A wiring device of a magnetic suspension bearing according to claim 1, characterized in that the magnetic suspension bearing comprises two outer cores (1) and an inner core (2) placed between the two outer cores (1); the control winding (3) is sleeved outside the inner iron core (2) and is positioned between the two outer iron cores (1); the first switching component (6) is mounted on the outer iron core (1), and the second switching component (7) is mounted on the inner iron core (2).
6. The magnetic suspension bearing wiring device according to claim 5, characterized in that the outer core (1) is provided with a first through hole (14) from which the first wiring terminal (4) extends, the first switching component (6) is provided with a first outer protruding portion (16) which is in plug-in fit with the first through hole (14), the first outer protruding portion (16) is provided with a first insertion hole (18), and the first wiring terminal (4) passes through the first insertion hole (18) and is in plug-in fit with the first conductive member (10).
7. The magnetic suspension bearing wiring device according to claim 5, wherein the outer edge of the outer iron core (1) is provided with a second through hole (15), the second switching component (7) is located between the two second through holes (15), the first switching component (6) is provided with a second outer protruding portion (17) which is in plug-in fit with the second through holes (15), the second outer protruding portion (17) is provided with a second inserting hole (19), and one end of the second conductive component (11) passes through the second inserting hole (19) and is in plug-in fit with the first conductive component (10).
8. A wiring device of a magnetic bearing according to any one of claims 2-4, further comprising a third switching member (20), said third switching member (20) being electrically connected to said second conductive member (11) and to an external power source, respectively; when the other end of the second conductive element (11) extends out of the second routing channel (13), the third switching component (20) is a socket.
9. Wiring device for a magnetic bearing according to any of the claims 2-7, characterized in that the first adapter part (6) is detachably connected to the magnetic bearing and/or that the second adapter part (7) is detachably connected to the magnetic bearing.
10. A compressor comprising a wiring device according to any one of claims 1 to 9.
11. A refrigeration apparatus having a compressor as recited in claim 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910130607.4A CN109812500B (en) | 2019-02-21 | 2019-02-21 | Wiring device of magnetic suspension bearing, compressor and refrigeration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910130607.4A CN109812500B (en) | 2019-02-21 | 2019-02-21 | Wiring device of magnetic suspension bearing, compressor and refrigeration equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109812500A CN109812500A (en) | 2019-05-28 |
| CN109812500B true CN109812500B (en) | 2024-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910130607.4A Active CN109812500B (en) | 2019-02-21 | 2019-02-21 | Wiring device of magnetic suspension bearing, compressor and refrigeration equipment |
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| CN (1) | CN109812500B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111059148A (en) * | 2019-12-27 | 2020-04-24 | 珠海格力电器股份有限公司 | Axial magnetic suspension bearing, motor, compressor and air conditioner |
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| CN105422621A (en) * | 2015-12-28 | 2016-03-23 | 宁波达奋精工轴承有限公司 | Active magnetic bearing |
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| CN107448512A (en) * | 2017-08-07 | 2017-12-08 | 珠海格力节能环保制冷技术研究中心有限公司 | Brake |
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| CN208028683U (en) * | 2018-01-03 | 2018-10-30 | 广东美芝制冷设备有限公司 | Compressor and refrigeration equipment |
| CN210196268U (en) * | 2019-02-21 | 2020-03-27 | 珠海格力电器股份有限公司 | Wiring device of magnetic suspension bearing, compressor and refrigeration equipment |
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2019
- 2019-02-21 CN CN201910130607.4A patent/CN109812500B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001103687A (en) * | 1999-09-27 | 2001-04-13 | Ebara Corp | Bearingless rotating machine |
| CN105422621A (en) * | 2015-12-28 | 2016-03-23 | 宁波达奋精工轴承有限公司 | Active magnetic bearing |
| CN205901475U (en) * | 2016-06-30 | 2017-01-18 | 广州万宝集团有限公司 | Linear electric motor coil is drawn forth line knot and is constructed |
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| CN109812500A (en) | 2019-05-28 |
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