CN108199507A - A kind of Modular motor stator structure - Google Patents
A kind of Modular motor stator structure Download PDFInfo
- Publication number
- CN108199507A CN108199507A CN201810263454.6A CN201810263454A CN108199507A CN 108199507 A CN108199507 A CN 108199507A CN 201810263454 A CN201810263454 A CN 201810263454A CN 108199507 A CN108199507 A CN 108199507A
- Authority
- CN
- China
- Prior art keywords
- magnetic conduction
- stator
- conduction item
- motor stator
- motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
- H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/16—Stator cores with slots for windings
- H02K1/165—Shape, form or location of the slots
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/20—Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/18—Windings for salient poles
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention discloses a kind of Modular motor stator structures, and including stator, the inner ring of stator yoke is evenly distributed arrangement and is equipped with multiple convex sets, and each convex sets include at least one lug boss for protruding from stator yoke inner ring radially inwards and in axial direction arranging；It is also circumferentially alternating on the inside of stator yoke inner ring to be equipped with magnetic conduction item and stator teeth, magnetic conduction item and stator teeth are correspondingly arranged with convex sets, and magnetic conduction item and stator teeth are equipped with and are clamped to form concealed fastener type structure with corresponding lug boss in groove with the matched groove in respective protrusions portion, magnetic conduction item and stator teeth.The present invention can be realized to the assembly of motor module formula, reduce motor production technology flow, shorten the manufacturing cycle.
Description
Technical field
The present invention relates to technical field of motors, and in particular to a kind of Modular motor stator structure.
Background technology
The power source that motor is lived as social production, with the continuous improvement that society requires production and living, therefore it is right
Operational reliability, flexibility and the controllability of motor propose higher requirement.
It is a large amount of to damage due to holding the presence of winding resistance due to the Conventional end winding structure of motor when motor works normally
Consumption can also generate so that the motor overheating of end windings and parts causes End winding insulation to be destroyed when serious, motor breaks down.It passes at present
System method is in motor end encapsulating, replaces air, ensures it in the case of reliable insulation, increase casing end and winding it
Between thermal conductivity factor, more heats can be caused to shed by casing.Also have by optimizing motor End winding coiling side
Formula shortens winding length, so as to reduce end wear.But these methods can only reduce to a certain extent end heat dissipation ask
Topic, can not be greatly lowered end wear and temperature.Motor length can not also be shortened simultaneously, reduce motor volume.
Conventional motors regulate and control difficulty in course of normal operation, to motor internal magnetic field, it is difficult to accomplish to motor inner magnet
The real-time monitoring of field is big so as to cause motor harmonic loss；Motor pole number changes difficult simultaneously, can not be right according to actual requirement
Motor pole number is made timely to be adjusted accordingly.Traditional way is to change stator winding using changer or contactor etc. to connect
The pole-changing control of motor in the case that method remains unchanged so as to fulfill supply frequency, this method tune pole range is small, and reliability is low.
According to conventional motors manufacturing process, technique is cumbersome during motor stator assembling, take it is longer, and after being completed not
It preferably dismounts, is not easy to overhaul motor, be transformed.
Invention content
The present invention in order to solve the problems in the prior art, provides a kind of Modular motor stator structure, can realize pair
Motor module formula is assembled, reduces motor production technology flow, shortens the manufacturing cycle.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：A kind of Modular motor stator structure, including
Stator, the inner ring of stator yoke are evenly distributed arrangement and are equipped with multiple convex sets, each convex sets include it is at least one radially
Stator yoke inner ring and the lug boss in axial direction arranged are protruded from inwardly；It is also circumferentially alternating on the inside of stator yoke inner ring to be equipped with
Magnetic conduction item and stator teeth, magnetic conduction item and stator teeth are correspondingly arranged with convex sets, and magnetic conduction item and stator teeth be equipped with
The matched groove in respective protrusions portion, magnetic conduction item and stator teeth are clamped to form concealed fastener type knot in groove with corresponding lug boss
Structure.
Magnetic conduction item is flexible magnetic conduction item, and flexible magnetic conduction item is equipped with the fixed bed for keeping its shape, motor stator straightway
Conducting wire directly passes through in flexible magnetic conduction item.
Magnetic conduction item is fluid magnetic conduction item, and fluid magnetic conduction item is equipped with the fixed bed for keeping its shape, is full of and leads in fixed bed
Magnetic fluid or powder, motor stator straight line section lead are passed through from magnetic conduction fluid or powder.
Magnetic conduction item is cellular magnetic conduction item, and motor stator straight line section lead is directly worn from the honeycomb hole of cellular magnetic conduction item
It crosses.
The axial end portion of stator is equipped with conducting wire access layer, and conducting wire access layer is equipped with connector, and every with magnetic conduction corresponding position
Slot motor stator straight line section lead connect to form plug-in type connection header structure by plug with corresponding joints.
The outside of conducting wire access layer is also equipped with sub-cooled layer.
Sub-cooled layer is equipped with the housing for keeping its shape, and cooling liquid is filled in housing.
Control area is also equipped on conducting wire access layer.
The beneficial effects of the invention are as follows：
1. stator teeth is clamped in groove with corresponding lug boss in the present invention（Replace stator toothing, size can be changed）,
Magnetic conduction item is clamped in groove with corresponding lug boss（Replace stator slot, size can be changed）, so as to realize to motor mould
Block formula is assembled, reduces motor production technology flow, shortens the manufacturing cycle.
The stator structure of the present invention can realize each wire independent operating in stator slot, ensure control flexibility and controllable
Property, and without tap.In failure, by controlling controllable switch, fault wire can be effectively cut off, ensures that motor is transported safely
Row, so as to improve the fault-tolerant ability of motor and reliability.
2. the axial end portion of the stator is equipped with conducting wire access layer, the outside of conducting wire access layer is also equipped with sub-cooled
Layer, so as to form composite bed board structure of circuit, compares conventional motors without end coil, therefore can greatly reduce brow leakage, together
When reduce end consumptive material.
Conducting wire access layer is equipped with connector with magnetic conduction corresponding position, and per slot motor stator straight line section lead and corresponding joints
It connects to form plug-in type connection header structure by plug, passes through pluggable mode so that conducting wire and circuit of the motor per slot straightway
It is connected in plate with the corresponding each conductor of slot（Number of lead wires and conductor number correspondent equal）.Conductor uses super-low resistance in circuit board
Rate material（The small material such as resistivity under graphene or some low temperature）.All corresponding conductors of circuit board all pass through one
Region is directly controlled, this directly controls the resistance for having corresponding every conductor in region, inductance, capacitance（It is adjustable type device
Part）, controllable switch（For the break-make of pilot）.Each slot conducting wire can realize interconnection directly controlling region.
Conductor is using super-low resistivity material in compound layer circuit board simultaneously, end wear also very little, by sub-cooled
Layer, end region temperature can be very low.
And the resistance for directly controlling each conductor series connection in the region electricity of conducting wire access layer can be changed by controller
Electrification holds equivalence, changes the current amplitude and phase of each wire in each stator slot, so as to fulfill to motor internal magnetic field
Direct regulation and control.During startup, using the resistance and inductance for directly controlling region, maximum starting torque is obtained, improves the startup of motor
Ability.During stable operation, the real-time adjusting to magnetic field in motor is realized, form controllable round magnetic field, reduce harmonic field and cause
Loss, effectively improve motor operation efficiency.
Based on Harmonic Theory, by being directly controlled to stator field, the content of harmonic wave in magnetic field is controlled, so as to fulfill
Arbitrary adjusting to stator field number of poles forms the adjustable range covered from the two poles of the earth to arbitrary number of poles.
3. by being assemblied to form complete motor, each section of completion will be pre-machined in motor each section in the present invention
Assembled successively, installation requirement, convenience simple for process according to erection sequence
4. the present invention has broken the boundary of stator coil winding in conventional motors system, the motor stator structure designed solves
The problems such as end wear is big, and temperature is high, and stator field control is difficult, is simple to manufacture, and support assembles on the spot, greatly shortens electricity
The machine manufacturing cycle, while conveniently motor is transformed.
Description of the drawings
Fig. 1 is the structure diagram at stator position in the present invention；
Fig. 2 is the scheme of installation at flexible magnetic conduction item in the present invention；
Fig. 3 is the scheme of installation at fluid magnetic conduction item in the present invention；
Fig. 4 is the scheme of installation at cellular magnetic conduction item in the present invention；
Fig. 5 be in the present invention magnetic conduction item and stator yoke in axial scheme of installation；
Fig. 6 is the structure diagram of conducting wire access layer in the present invention；
Fig. 7 is the side view of Fig. 6.
Specific embodiment
It elaborates below in conjunction with attached drawing 1 to Fig. 7 to the specific embodiment of the present embodiment.
A kind of Modular motor stator structure of the present invention, including stator, the inner ring of stator yoke 1 is evenly distributed arrangement and sets
There are multiple convex sets, each convex sets protrude from 1 inner ring of stator yoke and in axial direction arrange radially inwards including multiple
Lug boss 11；It is also circumferentially alternating on the inside of 1 inner ring of stator yoke to be equipped with magnetic conduction item 2 and stator teeth 3, magnetic conduction item 2 and stator
Teeth portion 3 is correspondingly arranged with convex sets, and magnetic conduction item 2 and stator teeth 3 be equipped with 11 matched groove of respective protrusions portion, lead
Magnetic stripe 2 and stator teeth 3 are clamped to form concealed fastener type structure in groove with corresponding lug boss.
The magnetic conduction item can select flexible magnetic conduction item, fluid magnetic conduction item or cellular magnetic conduction item.
When magnetic conduction item 2 selects flexible magnetic conduction item, as shown in Fig. 2, flexible magnetic conduction item is equipped with the fixed bed for keeping its shape,
Motor stator straight line section lead directly passes through in flexible magnetic conduction item.
When the selection fluid magnetic conduction item of magnetic conduction item 2, as shown in figure 3, fluid magnetic conduction item is equipped with the fixed bed for keeping its shape,
It is passed through from magnetic conduction fluid or powder full of magnetic conduction fluid or powder, motor stator straight line section lead in fixed bed.
When magnetic conduction item 2 selects cellular magnetic conduction item, as shown in figure 4, motor stator straight line section lead is directly led from cellular
It is passed through in the honeycomb hole of magnetic stripe.
Above structure can also be applied to tradition other than it can be applied to the straightway stator structure that the present embodiment is shown
Remain silent slot type stator structure or open slot stator structure.
By above-mentioned design, stator teeth is clamped in groove with corresponding lug boss（Replace stator toothing, can be changed
Size）, magnetic conduction item is clamped in groove with corresponding lug boss（Replace stator slot, size can be changed）, in practical applications, root
The magnetic conduction item and stator teeth of different in width size can be chosen according to different requirements, by the lug boss of stator yoke with magnetic conduction item or calmly
The groove of sub- teeth portion, the two is closely together, and so as to realize to the assembly of motor module formula, reduces motor production technology stream
Journey shortens the manufacturing cycle.
In the present embodiment, the axial end portion of the stator is equipped with conducting wire access layer 4, and the outside of conducting wire access layer is also equipped
Sub-cooled layer 5 so as to form composite bed board structure of circuit, compares conventional motors without end coil, therefore can greatly reduce end
Portion's leakage field, while reduce end consumptive material.
Conducting wire access layer 4 and 2 corresponding position of magnetic conduction item are equipped with connector 41, and per slot motor stator straight line section lead with it is corresponding
Connector 41 forms plug-in type by the connection of plug 42 and connects header structure, and control area 6 is also equipped on conducting wire access layer 4.By inserting
Pull out mode so that motor is connected in the conducting wire and circuit board per slot straightway with the corresponding each conductor of slot（It number of lead wires and leads
Body number correspondent equal）.Conductor uses super-low resistivity material in circuit board（As resistivity under graphene or some low temperature is small
Material）.All corresponding conductors of circuit board all directly control region by one, this, which directly controls in region to have, corresponds to every
The resistance of conductor, inductance, capacitance（It is adjustable type device）, controllable switch（For the break-make of pilot）.Each slot conducting wire
Interconnection can be realized directly controlling region.
Conductor is using super-low resistivity material in compound layer circuit board simultaneously, end wear also very little, by sub-cooled
Layer, end region temperature can be very low.
And the resistance for directly controlling each conductor series connection in the region electricity of conducting wire access layer 4 can be changed by controller
Electrification holds equivalence, changes the current amplitude and phase of each wire in each stator slot, so as to fulfill to motor internal magnetic field
Direct regulation and control.During startup, using the resistance and inductance for directly controlling region, maximum starting torque is obtained, improves the startup of motor
Ability.During stable operation, the real-time adjusting to magnetic field in motor is realized, form controllable round magnetic field, reduce harmonic field, effectively
Improve motor operation efficiency.
Based on Harmonic Theory, by being directly controlled to stator field, the content of harmonic wave in magnetic field is controlled, so as to fulfill
Arbitrary adjusting to stator field number of poles forms the adjustable range covered from the two poles of the earth to arbitrary number of poles.
The sub-cooled layer 5 is equipped with the housing for keeping its shape, and cooling liquid, such as liquid nitrogen are filled in housing.
The stator structure of the present invention can realize each wire independent operating in stator slot, ensure control flexibility and controllable
Property, and without tap.In failure, by controlling controllable switch, fault wire can be effectively cut off, ensures that motor is transported safely
Row, so as to improve the fault-tolerant ability of motor and reliability.
Present invention can apply to induction machines and magneto, and which solve solving, motor brow leakage is big, and loss is big,
The problems such as temperature is high, and consumptive material is serious, shortens motor length, reduces motor volume, motor internal magnetic field can be carried out direct
Regulation and control, can greatly provide electric motor starting performance and stable operating performance, and harmonic loss when reducing stable operation etc. effectively carries
High motor operation efficiency can realize that the number of poles of motor is arbitrarily adjusted（From the two poles of the earth to arbitrary number of poles）, the operation for improving motor can
By property, flexibility and controllability can be realized to the assembly of motor module formula, reduce motor production technology flow, shorten manufacture week
Phase.
The present invention has broken the boundary of stator coil winding in conventional motors system, and the motor stator structure designed solves
The problems such as end wear is big, and temperature is high, and stator field control is difficult, is simple to manufacture, and support assembles on the spot, greatly shortens electricity
The machine manufacturing cycle, while conveniently motor is transformed.
The above embodiments are only used to illustrate and not limit the technical solutions of the present invention, although with reference to above-described embodiment to this hair
It is bright to be described in detail, it will be understood by those of ordinary skill in the art that：Still can the present invention be modified or be waited
With replacing, without departing from the spirit or scope of the invention, or any substitutions, the power in the present invention should all be covered
In sharp claimed range.
Claims (8)
1. a kind of Modular motor stator structure, including stator, it is characterised in that：The inner ring of stator yoke is evenly distributed arrangement and sets
There are multiple convex sets, each convex sets protrude from stator yoke inner ring and in axial direction cloth radially inwards including at least one
The lug boss put；It is also circumferentially alternating on the inside of stator yoke inner ring to be equipped with magnetic conduction item and stator teeth, magnetic conduction item and stator teeth
It is correspondingly arranged with convex sets, and magnetic conduction item and stator teeth are equipped with and the matched groove in respective protrusions portion, magnetic conduction item and fixed
Sub- teeth portion is clamped to form concealed fastener type structure in groove with corresponding lug boss.
2. Modular motor stator structure according to claim 1, it is characterised in that：Magnetic conduction item is flexible magnetic conduction item, soft
Property magnetic conduction item be equipped with the fixed bed for keeping its shape, motor stator straight line section lead directly passes through in flexible magnetic conduction item.
3. Modular motor stator structure according to claim 1, it is characterised in that：Magnetic conduction item is fluid magnetic conduction item, is flowed
Body magnetic conduction item is equipped with the fixed bed for keeping its shape, is led in fixed bed full of magnetic conduction fluid or powder, motor stator straightway
Line is passed through from magnetic conduction fluid or powder.
4. Modular motor stator structure according to claim 1, it is characterised in that：Magnetic conduction item is cellular magnetic conduction item,
Motor stator straight line section lead is directly passed through from the honeycomb hole of cellular magnetic conduction item.
5. according to claim 1-4 any one of them Modular motor stator structures, it is characterised in that：The axial end portion of stator
Equipped with conducting wire access layer, conducting wire access layer and magnetic conduction corresponding position are equipped with connector, and per slot motor stator straight line section lead with
Corresponding joints connect to form plug-in type connection header structure by plug.
6. Modular motor stator structure according to claim 5, it is characterised in that：The outside of conducting wire access layer is also arranged
There is sub-cooled layer.
7. Modular motor stator structure according to claim 6, it is characterised in that：Sub-cooled layer, which is equipped, keeps it
The housing of shape, the interior filling cooling liquid of housing.
8. Modular motor stator structure according to claim 7, it is characterised in that：It is also equipped with controlling on conducting wire access layer
Region.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810263454.6A CN108199507B (en) | 2018-03-28 | 2018-03-28 | A kind of Modular motor stator structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810263454.6A CN108199507B (en) | 2018-03-28 | 2018-03-28 | A kind of Modular motor stator structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108199507A true CN108199507A (en) | 2018-06-22 |
| CN108199507B CN108199507B (en) | 2019-06-25 |
Family
ID=62596227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810263454.6A Expired - Fee Related CN108199507B (en) | 2018-03-28 | 2018-03-28 | A kind of Modular motor stator structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108199507B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112087113A (en) * | 2020-09-15 | 2020-12-15 | 华育昌(肇庆)智能科技研究有限公司 | Rare earth permanent magnet synchronous motor based on signal inverse transmission |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008142001A2 (en) * | 2007-05-21 | 2008-11-27 | Siemens Aktiengesellschaft | Module for the primary part of an electric machine |
| CN102468732A (en) * | 2010-11-15 | 2012-05-23 | Hrs风电技术有限公司 | Low-loss low-speed permanent magnet synchronous motor |
| CN103210565A (en) * | 2010-09-23 | 2013-07-17 | 北方动力系统效用公司 | Electromagnetic rotary machines having modular active-coil portions and modules for such machines |
| CN105515230A (en) * | 2015-12-31 | 2016-04-20 | 北京金风科创风电设备有限公司 | Stator of generator |
| CN106230212A (en) * | 2016-08-22 | 2016-12-14 | 北京理工大学 | A kind of single phase multi high frequency aluminum winding electric machine |
| US20170141653A1 (en) * | 2014-06-24 | 2017-05-18 | Kubota Corporation | Stator of electric motor and cooling structure of electric rotating machine |
-
2018
- 2018-03-28 CN CN201810263454.6A patent/CN108199507B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008142001A2 (en) * | 2007-05-21 | 2008-11-27 | Siemens Aktiengesellschaft | Module for the primary part of an electric machine |
| CN103210565A (en) * | 2010-09-23 | 2013-07-17 | 北方动力系统效用公司 | Electromagnetic rotary machines having modular active-coil portions and modules for such machines |
| CN102468732A (en) * | 2010-11-15 | 2012-05-23 | Hrs风电技术有限公司 | Low-loss low-speed permanent magnet synchronous motor |
| US20170141653A1 (en) * | 2014-06-24 | 2017-05-18 | Kubota Corporation | Stator of electric motor and cooling structure of electric rotating machine |
| CN105515230A (en) * | 2015-12-31 | 2016-04-20 | 北京金风科创风电设备有限公司 | Stator of generator |
| CN106230212A (en) * | 2016-08-22 | 2016-12-14 | 北京理工大学 | A kind of single phase multi high frequency aluminum winding electric machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112087113A (en) * | 2020-09-15 | 2020-12-15 | 华育昌(肇庆)智能科技研究有限公司 | Rare earth permanent magnet synchronous motor based on signal inverse transmission |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108199507B (en) | 2019-06-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102725946B (en) | Inverter body-type drive module and method for manufacturing the same | |
| CN104578651B (en) | For the system and method for low-temperature heat ferrite magnet motor | |
| CN208445375U (en) | Motor in axial magnetic field and its phase winding structure | |
| CN104734389A (en) | Stator disk and axial flux permanent magnet kinetic energy device | |
| CN107431390A (en) | Dc motor | |
| CN107979258A (en) | A kind of permanent-magnet brushless DC electric machine closed slot stator and its coil-inserting method | |
| JP2017523763A (en) | Method of manufacturing a molded winding coil for a stator laminated core | |
| CN201282376Y (en) | Tri-branch double-layer three-phase unsymmetrical branch stator winding | |
| KR20160112959A (en) | Windings for electrical machines | |
| CN108199507B (en) | A kind of Modular motor stator structure | |
| JP2020522226A (en) | Electric motor and compressor | |
| CN202856573U (en) | Multivariant switch magnetic resistance motor | |
| KR20120111505A (en) | Rotating superconductiong flux pump for hts generator | |
| CN109301950A (en) | A kind of stator winding and disc type electric machine | |
| CN110071614B (en) | Double-fed type electro-magnetic synchronous motor | |
| CN208112352U (en) | Modular stator and wind power generating set | |
| CN112054642A (en) | Yoke-free adjacent stator inter-tooth flux-passing type double-rotor switched reluctance motor system | |
| CN208112353U (en) | Modular stator and wind power generating set | |
| CN208094476U (en) | A kind of machine winding structure and synchronous motor and compressor using the structure | |
| CN103633816B (en) | A kind of super conduction synchronous electric motor | |
| CN107612287B (en) | High-temperature superconductive synchronous camera | |
| CN206379794U (en) | A kind of brushless DC motor stator component | |
| CN102635566B (en) | Internal speed-regulating two-speed electronic fan | |
| CN102468731B (en) | Stator of permanent-magnet synchronous motor | |
| CN112436641B (en) | Stator module, motor, compressor and refrigeration equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190625 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |