CN208077717U - A kind of ultrahigh speed electromagnet and component - Google Patents
A kind of ultrahigh speed electromagnet and component Download PDFInfo
- Publication number
- CN208077717U CN208077717U CN201820598490.3U CN201820598490U CN208077717U CN 208077717 U CN208077717 U CN 208077717U CN 201820598490 U CN201820598490 U CN 201820598490U CN 208077717 U CN208077717 U CN 208077717U
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- coil
- skeleton
- permanent magnet
- ultrahigh speed
- electromagnet
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/121—Guiding or setting position of armatures, e.g. retaining armatures in their end position
- H01F7/122—Guiding or setting position of armatures, e.g. retaining armatures in their end position by permanent magnets
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/121—Guiding or setting position of armatures, e.g. retaining armatures in their end position
- H01F7/123—Guiding or setting position of armatures, e.g. retaining armatures in their end position by ancillary coil
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/16—Rectilinearly-movable armatures
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electromagnets (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Abstract
The utility model is related to a kind of ultrahigh speed electromagnet and components, including skeleton, skeleton periphery is equipped with coil part, cavity is axially arranged in skeleton, slide bar corresponding with coil part portion is installed in the cavity, the coil part, which is powered, generates magnetic field to drive the slide bar portion axial direction back and forth movement, and the coil part includes the first coil being distributed along skeleton peripheral surface axial alignment, the second coil, for being formed simultaneously two incorgruous magnetic fields in skeleton axial direction；Slide bar portion includes permanent magnet portion and drive link.Electromagnet reaches the switching of double magnetic directions by the change of twin coil current direction, and by the cooperation in pole orientation fixed permanent magnet portion and twin coil magnetic field, realize the purpose for driving slide bar portion straight line back and forth movement by magnetic force completely, stroke is long, noise is small and service life is long.By the cooperation of auxiliary magnetic pole and electromagnet in component, further improvement is made to its stroke, driving force.
Description
Technical field
The utility model is related to electromagnet, especially frame-type/push-pull electromagnet.
Background technology
Frame-type electromagnet be using electromagnetic induction principle generate electromagnetism a kind of device, by coil energized state come
Slide bar portion movement inside driving, and the function of pushing away, draw external load device is played by the movement in slide bar portion, it is usually used in high speed
On the products such as pump, fast valve and massager.Available frame formula solenoid valve would generally be by the way of unicoil and spring cooperation
Realize the straight line back and forth movement in slide bar portion, the elastic property of spring can decay during long-term use, influence electromagnet
Service life, while the cooperation transmission in spring and slide bar portion also will produce noise, so available frame formula electromagnet has improvement
Needs.
Utility model content
The technical problem that an aspect of this disclosure solves is, provides a kind of a kind of improved ultrahigh speed electromagnet
And corresponding assembly.
Technical solution adopted by the utility model to solve its technical problems is：A kind of ultrahigh speed electromagnet, including skeleton,
Skeleton periphery is equipped with coil part, is axially arranged with cavity in skeleton, slide bar corresponding with coil part portion, institute are equipped in the cavity
It states coil part and generates magnetic field to be powered to drive the slide bar portion axial direction back and forth movement, the coil part to include,
First coil is sheathed on the skeleton periphery；
Second coil is sheathed on the skeleton periphery；
The first coil, the second coil are distributed along skeleton peripheral surface axial alignment, in skeleton axial direction shape
At the different magnetic field of two magnetic poles, two field pole directions can be synchronized by the switching of two the direction of the winding current to be occurred
Change；
Wherein, the slide bar portion includes,
Two magnetic poles in permanent magnet portion, permanent magnet portion magnetic field are axially distributed along the skeleton；
Drive link is fixed in the permanent magnet portion.
A kind of foregoing ultrahigh speed electromagnet, the cavity outer end are open end, and inner end is blind end, the transmission
Bar is fixed in the outside in the permanent magnet portion, with corresponding with open end.
A kind of foregoing ultrahigh speed electromagnet, along skeleton peripheral surface formation, there are two annular grooves to install respectively
The first coil, the second coil.
A kind of foregoing ultrahigh speed electromagnet, the skeleton periphery is coated with shell.
A kind of foregoing ultrahigh speed electromagnet, the permanent magnet portion includes two or more small permanent magnets, and adjacent
Electrical pure iron has been gripped between two small permanent magnets.
A kind of ultrahigh speed electromagnet assembly, component include such as preceding any one of them ultrahigh speed electromagnet, and for pacifying
Outside ultrahigh speed electromagnet and close to the auxiliary magnet of permanent magnet portion one end.
A kind of foregoing ultrahigh speed electromagnet assembly, the auxiliary magnet are permanent magnet.
A kind of foregoing ultrahigh speed electromagnet assembly, the auxiliary magnet are iron-core coil.
A kind of foregoing ultrahigh speed electromagnet assembly, it is empty to be formed with interval between auxiliary magnet and ultrahigh speed electromagnet
Between.
The advantageous effect that an aspect of this disclosure is brought：Pass through the corresponding magnetic of change stroke of twin coil current direction
Field coordinates with the magnetic field of permanent magnet in slide bar portion, straight line back and forth movement is carried out to achieve the purpose that push and pull slide bar portion, after improvement
Frame-type electromagnet service life be guaranteed, and muting function is good, and stroke is long.
Description of the drawings
Some specific realities of the utility model are described in detail by way of example rather than limitation below in conjunction with attached drawing
Example is applied, identical reference numeral denotes same or similar component or part in attached drawing.It should be appreciated by those skilled in the art that
The drawings are not necessarily drawn to scale.
In attached drawing：
Fig. 1 is an embodiment schematic diagram of the utility model electromagnet；
Fig. 2 is the utility model electromagnetism iron skeleton schematic diagram；
Fig. 3 is one schematic diagram of working condition of the utility model electromagnet embodiment；
Fig. 4 is two schematic diagram of working condition of the utility model electromagnet embodiment；
Fig. 5 is one schematic diagram of the utility model electromagnet assembly embodiment；
Fig. 6 is two working condition of the utility model electromagnet assembly embodiment, one schematic diagram；
Fig. 7 is two working condition of the utility model electromagnet assembly embodiment, two schematic diagram；
Fig. 8 is another embodiment schematic diagram in the utility model slide bar portion；
Mark is described as follows in figure：
1, shell；10, cavity；11, open end；12, blind end；2, first coil；3, skeleton；30, partition wall；31, barricade；
32, peripheral surface；4, the second coil；5, cover board；6, permanent magnet portion；60, small permanent magnet；61, electrical pure iron；7, guide rod；8, guide block；
780, drive link；9, annular groove；101, auxiliary magnet；102, clearance space；103, iron-core coil.
Specific implementation mode
It is new below in conjunction with this practicality to keep the purpose, technical scheme and advantage of the utility model embodiment clearer
The technical solution of the utility model embodiment is clearly and completely described in the attached drawing of type embodiment.Obviously, described
Embodiment is a part of the embodiment of the utility model, instead of all the embodiments.
Based on described the embodiments of the present invention, those of ordinary skill in the art are before without creative work
The every other embodiment obtained is put, shall fall within the protection scope of the present invention.Unless otherwise defined, the disclosure uses
Technical term or scientific terminology should be the personage with general technical ability in the utility model fields understood it is logical
Chang Yiyi.
" first ", " second " and the similar word used in the disclosure is not offered as any sequence, quantity or again
The property wanted, and be used only to distinguish different component parts.Equally, "one", the similar word such as " one " or "the" do not indicate that yet
Quantity limits, but indicates that there are at least one.The similar word such as " comprising " or "comprising" means occur before the word
Element either object cover appear in the element of the word presented hereinafter either object and its it is equivalent and be not excluded for other elements or
Object." connection " either the similar word such as " connected " is not limited to physics or mechanical connection, but may include
Electrical connection, it is either directly or indirect."upper", "lower", "left", "right" etc. are only used for indicating that relative position is closed
System, after the absolute position for being described object changes, then the relative position relation may also correspondingly change.
As shown in attached drawing 1-2, a kind of ultrahigh speed electromagnet, including skeleton 3,3 periphery of skeleton is equipped with coil part, in skeleton 3
It is axially arranged with cavity 10, slide bar corresponding with coil part portion is installed in the cavity 10, the coil part generates to be powered
Magnetic field includes the first coil that fixing sleeve is set to 3 periphery of the skeleton to drive the slide bar portion axial direction back and forth movement, coil part
2, the second coil 4, first coil 2, the second coil 4 are distributed along 3 peripheral surface of skeleton, 32 axial alignment, in skeleton axial direction side
To formed two can synchronize transformation pole orientation and two pole orientations be always in phase metachromatic state magnetic field (i.e. two coils that
This close one end magnetic pole is identical).
Wherein, the slide bar portion includes,
Permanent magnet portion 6, two magnetic poles in 6 magnetic field of permanent magnet portion are along the axial distribution of the skeleton 3；
Drive link 780 is fixed in the permanent magnet portion 6.
Improved work of electromagnet operational process is as Figure 2-3：
Such as Fig. 3, as reference with paper direction, the magnetic pole left end in permanent magnet portion 6 is S, right end N in figure, by First Line
Enclose the 2, second coil 4 by corresponding wiring pin access can be changed current direction circuit structure (this is the prior art, herein
Do not repeat) in, first coil 2 is formed by a magnetic field left side as N ' after being passed through electric current, and the right side is S ', and the second coil 4 is formed by
Field pole direction is then incorgruous with first coil 2, i.e., a magnetic field left side is S ", and the right side is N ".The magnetic pole N ' of first coil 2 can be at this time
The magnetic pole S in permanent magnet portion 6 forms attraction, the magnetic pole S ' of first coil 2, the second coil 4 magnetic pole S " and permanent magnet portion 6 magnetic
Pole N forms attraction, and the magnetic pole N in the magnetic pole N " of the second coil 4 and permanent magnet portion 6 forms repulsive force, in matching for three strength
Cooperation is with lower so that the end motion to the left of slide bar portion.
Such as Fig. 4, change the current direction in first coil 2, the second coil 4,2 left end of first coil is magnetic pole S ', right end
For magnetic pole N ', 4 left end of the second coil is magnetic pole N ", and right end is magnetic pole S ".At this point, the magnetic pole S ' meetings of first coil 2 and permanent magnet
The magnetic pole S in portion 6 forms repulsive force, the magnetic pole N ' of first coil 2, the second coil 4 magnetic pole N " and permanent magnet portion 6 magnetic pole S-shaped
At attraction, and the magnetic pole S " of the second coil 4 and the magnetic pole N in permanent magnet portion 6 form attraction, in the mating reaction of three strength
Down so that the end motion to the right of slide bar portion.
More than, circuit is accessed by twin coil and forms the different magnetic field of two pole orientations, then is fixed with pole orientation
Permanent magnet portion 6 coordinates, and by the change of the direction of the winding current come the mating reaction power between switching field, reaches push-and-pull slide bar portion
Do the purpose of straight line back and forth movement.Slide bar portion is a simple force structure, passive reception magnetic field in previous electromagnet
Active force is to move.And improve after, slide bar portion after by twin coil magnetic field force, also by its own permanent magnet portion 6 with
This stress is reinforced in the cooperation in twin coil magnetic field so that movement travel that it can be realized is longer, strength is more sufficient.In addition, after improving
Frame-type electromagnet be not necessarily to spring, by spring performance decaying influenced, service life is guaranteed, and operation more pacify
It is quiet.
Single overall structure (permanent magnet is often permanent magnet) may be used in permanent magnet portion 6, but in practice, in order to full
The volume in sufficient slide bar portion stroke demand possible permanent magnet portion can be larger, and massive structure is difficult to install, therefore in this case forever
Two or more small permanent magnets 60 may be used in magnet portion 6, and electrical pure iron 61 is gripped between adjacent small permanent magnet 60,
Thus combination forms the permanent magnet portion 6 that a pole orientation is fixed and magnetic field force is larger, as shown in Figure 8.
10 open end 11 of cavity, blind end 12 can be arranged according to specific requirements, in some embodiments, 3 both ends of skeleton
Equipped with cover board 5, there are openings to form open end 11 for the corresponding cover board 5 in 10 outer end of cavity, and the cover board 5 of 10 inner end of respective chamber is complete
Closing forms blind end 12, and the drive link is fixed in the outside in the permanent magnet portion 6, i.e., drive link is close to open end 11.It passes
Lever may include guide rod 7 and guide block 8, and guide rod 7 has certain length and realizes that transmission is matched with external other structures to meet guide block 8
The distance requirement of conjunction, and guide block 8 then realizes directly transmission with external structure, in slide bar portion when straight line back and forth movement, drive link
It is moved inside and outside open end 11.
Form that there are two independent annular grooves 9 to install the first coil 2, the respectively along 3 peripheral surface 32 of the skeleton
There is common partition wall 30, the one end deviated from respectively to have barricade 31, annular groove for two coil 4, the close one end of two annular grooves 9
9 can be stable at coil wherein, and avoiding coil from loosening influences magnetic field effect.It is coated with shell 1 in 3 periphery of skeleton simultaneously, it is right
Protection is formed inside electromagnet.
Again as illustrated in figs. 5-7, a kind of electromagnet assembly is provided, component includes ultrahigh speed electromagnet above-mentioned and auxiliary magnetic
Body 101, auxiliary magnet 101 are used to be mounted on outside ultrahigh speed electromagnet and close to 6 one end of permanent magnet portion, pass through auxiliary magnet
Magnetic field cooperation between 101 and permanent magnet portion 6 can reinforce the active force to slide bar portion.
In Fig. 5, fixed electromagnet is installed in corresponding product structure, then using the fixed permanent magnet of pole orientation as auxiliary
Magnet is placed in by electromagnet, and its position corresponds to permanent magnet portion of slide bar portion 6.Permanent magnet left end is magnetic pole N in such as figure, and right end is
Magnetic pole S, then when slide bar portion right lateral moves, identical charges repel each other auxiliary magnet and permanent magnet portion 6, and active force can help slide bar portion right
Every trade journey faster, it is longer.And in slide bar portion left lateral, the active force between twin coil and permanent magnet portion 6 is greater than auxiliary magnet
Repel each other active force, can set component according to specific use environment demand is mating in advance herein, i.e., so that auxiliary magnetic
Active force caused by body 101 can play thrust to slide bar portion right lateral direction, and be unlikely to totally block slide bar portion left lateral
The movement of recycling.Scheme shown in Fig. 4, suitable for there is the product of corresponding demand to slide bar portion right lateral, if product is to slide bar portion left lateral
Movement has the demand of reinforcement, its pole orientation can also be made to change by that will exchange auxiliary magnet.
The auxiliary magnet 101 of aforementioned use is the fixed permanent magnet of pole orientation, although can meet the needs of certain,
Power-assisted can not all be played the role of to the round-trip both direction in slide bar portion, it is therefore preferable that iron-core coil 103 is pacified as auxiliary magnet
On one side mounted in electromagnet.Iron-core coil 103 is accessed when installation in the circuit structure that current direction can be changed, as shown in figure 5, working as
When slide bar portion right lateral, magnetic field caused by iron-core coil 103 forms the active force that repels each other to the permanent magnet portion 6 in slide bar portion, to help
Push moving slide-bar portion right lateral；When slide bar portion left lateral, 103 current direction of iron-core coil changes, field pole exchange, to permanent magnet
Portion 6 generates attraction force, to retract slide bar portion.Between having centainly between auxiliary magnet 101 and frame-type electromagnet
Every space 102, preferably to play the mating reaction between magnetic field, when installation is on corresponding construction, can by plastic cement or
Person's un-conducted magnetic material realizes the fixation of auxiliary magnet.
Improved frame-type electromagnet reaches the switching of double magnetic directions by the change of twin coil current direction, and borrows
The cooperation in magnetic assist extreme direction fixed permanent magnet portion 6 and twin coil magnetic field, realization drive slide bar portion by magnetic force completely
The purpose of straight line back and forth movement, stroke is long, noise is small and service life is long.And by the cooperation of auxiliary magnetic pole, to electromagnetism
Stroke, the driving force of iron make further improvement.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, the utility model can have various changes, combination and variation.It is all the utility model spirit and
Within principle, any modification, equivalent replacement, improvement and so on, should be included in the utility model right it
It is interior.
Claims (9)
1. a kind of ultrahigh speed electromagnet, including skeleton, skeleton periphery is equipped with coil part, is axially arranged with cavity, the chamber in skeleton
Slide bar corresponding with coil part portion is installed in body, it is characterised in that：The coil part generates magnetic field to drive to be powered
Slide bar portion axial direction back and forth movement is stated, the coil part includes,
First coil is sheathed on the skeleton periphery；
Second coil is sheathed on the skeleton periphery；
The first coil, the second coil are distributed along skeleton peripheral surface axial alignment；
Wherein, the slide bar portion includes,
Two magnetic poles in permanent magnet portion, permanent magnet portion magnetic field are axially distributed along the skeleton；
Drive link is fixed in the permanent magnet portion.
2. a kind of ultrahigh speed electromagnet as described in claim 1, it is characterised in that：The cavity outer end is open end, inner end
For blind end, the drive link is fixed in the outside in the permanent magnet portion with corresponding with open end.
3. a kind of ultrahigh speed electromagnet as described in claim 1, it is characterised in that：Along there are two skeleton peripheral surface formation
Annular groove to install the first coil, the second coil respectively.
4. a kind of ultrahigh speed electromagnet as described in claim 1, it is characterised in that：The skeleton periphery is coated with shell.
5. a kind of ultrahigh speed electromagnet as described in claim 1, it is characterised in that：The permanent magnet portion includes two or more
Small permanent magnet, and gripped electrical pure iron between two neighboring small permanent magnet.
6. a kind of ultrahigh speed electromagnet assembly, it is characterised in that：Component includes ultrahigh speed as described in any one in claim 1-5
Electromagnet, and for outside ultrahigh speed electromagnet and close to the auxiliary magnet of permanent magnet portion one end.
7. a kind of ultrahigh speed electromagnet assembly as claimed in claim 6, it is characterised in that：The auxiliary magnet is permanent magnet.
8. a kind of ultrahigh speed electromagnet assembly as claimed in claim 6, it is characterised in that：The auxiliary magnet is iron core line
Circle.
9. a kind of ultrahigh speed electromagnet assembly as claimed in claim 6, it is characterised in that：The auxiliary magnet and ultrahigh speed electricity
Clearance space is formed between magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2018/085187 WO2019136884A1 (en) | 2018-01-11 | 2018-04-28 | Ultra high speed electromagnet and components |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820047751 | 2018-01-11 | ||
| CN2018200477512 | 2018-01-11 |
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|---|---|
| CN208077717U true CN208077717U (en) | 2018-11-09 |
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| CN201820598490.3U Active CN208077717U (en) | 2018-01-11 | 2018-04-24 | A kind of ultrahigh speed electromagnet and component |
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| CN (1) | CN208077717U (en) |
| WO (1) | WO2019136884A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110098716A (en) * | 2019-04-24 | 2019-08-06 | 深圳市华一传动技术有限公司 | Magnetosphere formula linear electric machine, electric device and massage machine |
| CN112098684A (en) * | 2020-09-16 | 2020-12-18 | 国网山东省电力公司招远市供电公司 | Quick checking instrument for reverse connection of inlet and outlet wires of electric energy meter |
| CN112562962A (en) * | 2020-12-03 | 2021-03-26 | 安徽爱意爱机电科技有限公司 | Push type electromagnet structure for high-speed production line |
| CN112932933A (en) * | 2021-01-27 | 2021-06-11 | 深圳市文森特技术有限公司 | Reciprocating motion mechanism |
| CN113670217A (en) * | 2021-07-23 | 2021-11-19 | 武汉理工大学 | Measuring point device for monitoring tunnel convergence deformation |
| CN114551024A (en) * | 2022-02-16 | 2022-05-27 | 上海卫星工程研究所 | Stop gear and spacecraft magnetic levitation device |
| CN115430032A (en) * | 2021-09-30 | 2022-12-06 | 浙江合道控股有限责任公司 | Motor and tattooing pen using same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111029135A (en) * | 2019-12-16 | 2020-04-17 | 荆门微田智能科技有限公司 | Magnetic expansion coil winding power manipulator |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201174355Y (en) * | 2008-03-24 | 2008-12-31 | 江门市汉宇电器有限公司 | Electric magnet for distributor of refrigerator |
| CN101409132A (en) * | 2008-07-31 | 2009-04-15 | 郭保宣 | Magnetic-holding controller |
| CN102637504B (en) * | 2012-05-02 | 2013-08-07 | 浙江大学 | High-speed two-way permanent-magnetic reset proportion electromagnet |
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2018
- 2018-04-24 CN CN201820598490.3U patent/CN208077717U/en active Active
- 2018-04-28 WO PCT/CN2018/085187 patent/WO2019136884A1/en active Application Filing
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110098716A (en) * | 2019-04-24 | 2019-08-06 | 深圳市华一传动技术有限公司 | Magnetosphere formula linear electric machine, electric device and massage machine |
| CN112098684A (en) * | 2020-09-16 | 2020-12-18 | 国网山东省电力公司招远市供电公司 | Quick checking instrument for reverse connection of inlet and outlet wires of electric energy meter |
| CN112098684B (en) * | 2020-09-16 | 2023-07-28 | 国网山东省电力公司招远市供电公司 | Electric energy meter wire inlet and outlet reverse connection rapid checking instrument |
| CN112562962A (en) * | 2020-12-03 | 2021-03-26 | 安徽爱意爱机电科技有限公司 | Push type electromagnet structure for high-speed production line |
| CN112562962B (en) * | 2020-12-03 | 2022-08-12 | 安徽爱意爱机电科技有限公司 | Push type electromagnet structure for high-speed production line |
| CN112932933A (en) * | 2021-01-27 | 2021-06-11 | 深圳市文森特技术有限公司 | Reciprocating motion mechanism |
| CN112932933B (en) * | 2021-01-27 | 2023-12-12 | 深圳市文森特技术有限公司 | reciprocating mechanism |
| CN113670217A (en) * | 2021-07-23 | 2021-11-19 | 武汉理工大学 | Measuring point device for monitoring tunnel convergence deformation |
| CN115430032A (en) * | 2021-09-30 | 2022-12-06 | 浙江合道控股有限责任公司 | Motor and tattooing pen using same |
| CN114551024A (en) * | 2022-02-16 | 2022-05-27 | 上海卫星工程研究所 | Stop gear and spacecraft magnetic levitation device |
| CN114551024B (en) * | 2022-02-16 | 2023-12-12 | 上海卫星工程研究所 | Stop gear and spacecraft magnetic buoyancy ware |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019136884A1 (en) | 2019-07-18 |
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