CN108736597B - Sectional iron core and disc type motor - Google Patents
Sectional iron core and disc type motor Download PDFInfo
- Publication number
- CN108736597B CN108736597B CN201811008350.7A CN201811008350A CN108736597B CN 108736597 B CN108736597 B CN 108736597B CN 201811008350 A CN201811008350 A CN 201811008350A CN 108736597 B CN108736597 B CN 108736597B
- Authority
- CN
- China
- Prior art keywords
- smc
- core
- iron core
- segmented
- laminated
- 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.)
- Active
Links
Images
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
- H02K1/148—Sectional cores
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
- H02K2201/12—Transversal flux machines
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
- H02K2201/15—Sectional machines
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention discloses a segmented iron core and a disc type motor, wherein the segmented iron core is coated on the whole external part of a laminated iron core by adopting an SMC iron core, the appearance which is difficult to process is formed by processing the SMC iron core which is easy to form, and the whole structure of the laminated iron core is relatively single, so that the specification of a die for processing the laminated iron core is less, the die is easy to process, and the processing difficulty of the segmented iron core is reduced. And the electromagnetic performance of the segmented iron core is higher than that of a laminated iron core which is only used by SMC materials, and the utilization rate of the iron core is higher than that of the laminated iron core which is only used.
Description
Technical Field
The invention relates to the technical field of motors, in particular to a segmented iron core and a disc type motor.
Background
A disc type iron core of the disc type motor is divided into an integral iron core and a segmented iron core. For most of the disc motor structures with a single middle stator, the disc iron core adopts a segmented iron core.
At present, the segmented iron core is generally formed by stacking a plurality of silicon steel sheets with different section sizes or by an SMC (sheet molding compound) integral forming method. The silicon steel sheets with different cross section sizes are laminated, and a plurality of specifications of silicon steel sheet types lead to the need of a plurality of specifications of dies, thereby increasing the process difficulty; although the SMC is easy to form by adopting an SMC integral forming method, the SMC material has poor electromagnetic performance, low magnetic permeability and large loss.
Therefore, how to improve the electromagnetic performance based on the reduction of the manufacturing difficulty of the segmented iron core becomes a technical problem to be solved urgently by those skilled in the art.
Disclosure of Invention
In view of this, the present invention provides a segmented core and a disc motor, and aims to solve the technical problem of how to improve the electromagnetic performance on the basis of reducing the manufacturing difficulty of the segmented core.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a segmentation iron core, includes laminated core and SMC iron core, the SMC iron core through the concatenation cladding in laminated core's periphery, the SMC iron core is installed inside prefabricated coil through the concatenation, perhaps the direct winding coil of SMC iron core.
Preferably, in the segmented core, the SMC core includes a first SMC core and a second SMC core, the first SMC core and the second SMC core are wrapped around the laminated core by splicing, and the first SMC core and the second SMC core are installed inside the prefabricated coil after splicing or the coil is directly wound around the SMC core.
Preferably, in the segmented core, the first SMC core includes SMC bars and SMC in-slots fitted to the laminated core, and the SMC in-slots are of a non-penetrating or penetrating structure.
Preferably, in the segmented core, an end of the SMC bar facing away from the SMC embedding slot is provided with an SMC pole shoe.
Preferably, in the segmented core, one end of the SMC bar close to the SMC embedding slot is provided with a first positioning protrusion and/or a first positioning hole which are matched with the second SMC core.
Preferably, in the segmented core, one end of the SMC bar, where the SMC embedding slot is located, is provided with a second locating protrusion and/or a second locating hole, which are/is matched with the second SMC core.
Preferably, in the segmented core, when the first positioning protrusion and the first positioning hole are simultaneously provided, the first positioning protrusion and the first positioning hole are symmetrically provided, and the size of the first positioning protrusion is matched with the size of the first positioning hole;
when the second positioning protrusion and the second positioning hole are arranged at the same time, the second positioning protrusion and the second positioning hole are symmetrically arranged, and the size of the second positioning protrusion is matched with that of the second positioning hole.
Preferably, in the segment core, the second SMC core has the same structure as the first SMC core.
Preferably, in the segmented core, the laminated core is formed by laminating a plurality of laminated sheets, and the laminated sheets are silicon steel sheets or amorphous alloy sheets.
Preferably, in the segmented core, the laminated core is formed by laminating laminated sheets of the same size, or the laminated core is formed by laminating a plurality of laminated sheets of gradually reduced sizes.
The invention also discloses a disc type motor which comprises a first stator clamping plate, a segmented iron core, a stator inner support, a second stator clamping plate and a machine shell, wherein each segmented iron core is fixed in the machine shell through the first stator clamping plate, the second stator clamping plate and the stator inner support, and the segmented iron core is any one of the segmented iron cores.
According to the technical scheme, the segmented iron core is coated on the whole outer portion of the laminated iron core, the appearance which is not easy to process is formed by processing the SMC iron core which is easy to form, and the laminated iron core is relatively single in overall structure, so that the specification of a die for processing the laminated iron core is small, the die is easy to process, and the processing difficulty of the segmented iron core is reduced. And the electromagnetic performance of the segmented iron core is higher than that of a laminated iron core which is only used by SMC materials, and the utilization rate of the iron core is higher than that of the laminated iron core which is only used.
In addition, because the SMC iron core is of a splicing structure, the SMC iron core is spliced and installed inside a prefabricated coil, such as a flat copper wire preformed coil. Thereby, winding is not needed, and the production efficiency is improved. Alternatively, the coil is wound directly around the SMC core.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is an exploded view of a segmented core according to an embodiment of the present invention;
fig. 2 is a schematic perspective view of a spliced segmented iron core according to an embodiment of the present invention;
fig. 3 is a schematic perspective view of a first SMC core according to an embodiment of the present invention;
fig. 4 is an exploded view of another segmented core according to an embodiment of the present invention;
fig. 5 is an exploded view of another segmented core according to an embodiment of the present invention;
fig. 6 is a schematic perspective view of a spliced segmented core according to another embodiment of the present invention;
fig. 7 is an exploded view of another segmented core according to an embodiment of the present invention;
fig. 8 is a schematic perspective view of a spliced segmented core according to another embodiment of the present invention;
fig. 9 is a schematic perspective view of a disc motor according to an embodiment of the present invention;
fig. 10 is an exploded view of a disc motor according to an embodiment of the present invention.
100 is an SMC iron core, 200 is a laminated iron core, 300 is a coil, 400 is a first stator splint, 500 is a second stator splint, 600 is a stator inner support, 700 is a machine shell, 101 is a first SMC iron core, 102 is a second SMC iron core, 1011 is an SMC bar, 1012 is an SMC inner caulking groove, 1013 is an SMC pole shoe, 1014 is a first positioning bulge, 1015 is a first positioning hole, 1016 is a second positioning bulge, and 1017 is a second positioning hole.
Detailed Description
Disc motor: a disc motor is also called an axial field motor, and the direction of the magnetic field inside the motor is along the axial direction. Axial field motors are also known as disc motors because they are generally flat.
SMC: the soft magnetic composite material is a magnetic conductive iron core formed by pressing iron powder coated by a special insulating material, and can be manufactured into a flexible shape according to actual requirements.
Therefore, the core of the invention is to provide the segmented iron core and the disc type motor so as to improve the electromagnetic performance on the basis of reducing the manufacturing difficulty of the segmented iron core.
The embodiments described below do not limit the contents of the invention described in the claims. The entire contents of the configurations shown in the following embodiments are not limited to those required as solutions of the inventions described in the claims.
Referring to fig. 1 to 10, the segmented core according to the embodiment of the present invention includes a laminated core 200 and an SMC core 100, where the SMC core 100 is spliced and wrapped around the laminated core 200, and the SMC core is spliced and installed inside a prefabricated coil, or the coil is directly wound around the SMC core.
The segmented iron core is formed by wrapping the SMC iron core 100 outside the laminated iron core 200, the appearance which is difficult to process is formed by processing the SMC iron core 100 which is easy to form, and the laminated iron core 200 has a single integral structure, so that the specification of a die for processing the laminated iron core 200 is small, the die is easy to process, and the processing difficulty of the segmented iron core is reduced. And the electromagnetic performance of the segmented iron core is higher than that of the laminated iron core 200 which is only used by SMC materials, and the utilization rate of the iron core is higher than that of the laminated iron core which is only used by the laminated iron core 200.
In addition, since the SMC core 100 has a spliced structure, the SMC core 100 is spliced and installed inside a preformed coil, such as a flat copper wire preformed coil. Thereby, winding is not needed, and the production efficiency is improved. Alternatively, the coil is directly wound around the SMC core 100.
It should be noted that in the embodiment of the present invention, the SMC core 100 can cover the entire outside of the laminated core 200, and the laminated core 200 is located entirely inside the SMC core 100. The SMC core 100 covers the outer circumference of the laminated core 200, and both ends of the laminated core 200 are not covered. The SMC core 100 covers the entire outer circumference of the laminated core 200, or a partial outer circumference, wherein a portion of the laminated core 200 is exposed when the partial outer circumference is covered, a portion may be concentrated to be exposed, or both ends may have a portion exposed.
SMC core 100 includes first SMC core 101 and second SMC core 102, and first SMC core 101 and second SMC core 102 are through the concatenation cladding in the whole outside of laminated core 200, and first SMC core 101 and second SMC core 102 concatenation is installed inside prefabricated coil 300 (for example flat copper wire preforming coil) or said coil 300 directly winds SMC core 100 periphery. In order to ensure the overall electromagnetic performance, the shape of the SMC embedded groove 1012 in the embodiment of the present invention conforms to the shape of the laminated core 200, for example, the SMC embedded groove 1012 has a rectangular structure; or the SMC embedding groove 1012 is provided with a plurality of stepped portions.
Wherein the first SMC core 101 and the second SMC core 102 are either identical in structure or different. Taking the first SMC core 101 as an example, the first SMC core 101 includes SMC bars 1011 and SMC nests 1012 that fit into the laminated core 200, the SMC nests 1012 being either a non-through configuration or a through configuration. After the first SMC core 101 and the second SMC core 102 are butted, the embedded slot in the first SMC core 101 is butted with the embedded slot in the second SMC core 102, and the overall appearance structure of the laminated core 200 is spliced.
To optimize the above, the end of the SMC bar 1011 facing away from the SMC-nesting slot 1012 is provided with an SMC shoe 1013. To enable the first SMC core 101 and the second SMC core 102 to mate in the correct position, the end of the SMC bar 1011 near the SMC-nesting slot 1012 is provided with a first locating protrusion 1014 and/or a first locating hole 1015 that fits into the second SMC core 102. When mated, the first locating boss 1014 of the first SMC core 101 mates with the first locating hole 1015 of the second SMC core 102 and the first locating hole 1015 of the first SMC core 101 mates with the first locating boss 1014 of the second SMC core 102.
That is, the first SMC core 101 may be provided with only one or both of the first positioning projection 1014 and the first positioning hole 1015, and the second SMC core 102 may be provided with a corresponding structure to fit it.
Further, the SMC bar 1011 is provided at an end thereof adjacent to the SMC embedding recess 1012 with a second positioning protrusion 1016 and/or a second positioning hole 1017 for fitting the second SMC core 102. When mated, the first locating protrusion 1014 of the first SMC core 101 mates with the second locating hole 1017 of the second SMC core 102 and the second locating hole 1017 of the first SMC core 101 mates with the second locating protrusion 1016 of the second SMC core 102.
That is, the first SMC core 101 may be provided with only one or both of the second positioning protrusion 1016 and the second positioning hole 1017, and the second SMC core 102 may be provided with a corresponding structure to match with the positioning protrusion.
In order to further reduce the processing difficulty of the segmented iron core, in the embodiment of the invention, the first positioning protrusion 1014 and the first positioning hole 1015 are symmetrically arranged, and the size of the first positioning protrusion 1014 is matched with the size of the first positioning hole 1015; the second positioning protrusion 1016 and the second positioning hole 1017 are symmetrically arranged, and the size of the second positioning protrusion 1016 is matched with the size of the second positioning hole 1017. With this arrangement, the first SMC core 101 and the second SMC core 102 have the same structure, and the first SMC core 101 and the second SMC core 102 can be processed by using the same mold.
The laminated core 200 is formed by laminating a plurality of laminated sheets, and the laminated sheets are silicon steel sheets or amorphous alloy sheets. The laminated core 200 of the embodiment of the present invention has a simple structure, for example, in order to facilitate the processing of a rectangular structure, the laminated core 200 having a rectangular structure can be formed by the same size of laminated core during the lamination process.
In addition, in order to further improve the electromagnetic performance of the whole segmented core, the laminated core 200 may be formed by laminating a plurality of segments of laminated sheets with different sizes, preferably, in order to maximally adapt to the outer shape (usually, a trapezoid structure) of the segmented core, the larger the number of the laminated sheets with different sizes is, the better, but in view of the processing difficulty, in the embodiment of the present invention, the laminated core 200 is formed by laminating three segments of laminated sheets with gradually reduced sizes, wherein the size of the laminated sheets in each segment is the same, and the sizes of the adjacent segments are different.
The invention also discloses a disc type motor, which comprises a first stator splint 400, a segmented iron core, a stator inner support 600, a second stator splint 500 and a machine shell 700, wherein each segmented iron core is fixed in the machine shell 700 by the first stator splint 400, the second stator splint 500 and the stator inner support 600, and the segmented iron core is any one of the segmented iron cores. Since the segmented core has the advantages, the disc motor comprising the segmented core also has corresponding effects, which are not described in detail herein.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. The segmented iron core of the disc type motor is characterized by comprising a laminated iron core and an SMC iron core, wherein the SMC iron core is spliced and coated on the whole periphery of the laminated iron core, and the SMC iron core is spliced and installed in a prefabricated coil or the coil is directly wound on the periphery of the SMC iron core; the SMC iron core comprises a first SMC iron core and a second SMC iron core, the first SMC iron core and the second SMC iron core are spliced and coated on the whole periphery of the laminated iron core, and the first SMC iron core and the second SMC iron core are spliced and then installed inside a prefabricated coil or the coil is directly wound on the periphery of the SMC iron core; the first SMC iron core comprises an SMC bar and an SMC inner embedded groove matched with the laminated iron core, the SMC inner embedded groove is of a non-penetrating structure, and the SMC inner embedded groove is of a rectangular structure or is provided with a plurality of step parts; the laminated core is formed by laminating a plurality of rectangular structural laminations with the same size or formed by laminating a plurality of sections of rectangular structural laminations with different sizes.
2. The segmented core for a disc motor according to claim 1 wherein an end of said SMC bar facing away from said SMC nest is provided with an SMC shoe.
3. The segmented core for a disc motor according to claim 2, wherein one end of the SMC bar near the SMC in-slot is provided with a first locating protrusion and/or a first locating hole that fits the second SMC core.
4. The segmented core for a disc motor according to claim 3, wherein one end of the SMC bar, which is provided with the SMC embedding groove, is provided with a second positioning bulge and/or a second positioning hole which are matched with the second SMC core.
5. The segmented core of the disc motor according to claim 4, wherein when the first positioning protrusion and the first positioning hole are provided at the same time, the first positioning protrusion and the first positioning hole are symmetrically provided, and the size of the first positioning protrusion is matched with the size of the first positioning hole;
when the second positioning protrusion and the second positioning hole are arranged at the same time, the second positioning protrusion and the second positioning hole are symmetrically arranged, and the size of the second positioning protrusion is matched with that of the second positioning hole.
6. The segmented core for a disc motor according to claim 5, wherein the second SMC core is identical in structure to the first SMC core.
7. A disc motor comprising a first stator lamination, a segmented core, a stator inner support, a second stator lamination, and a housing, each segmented core being held within the housing by the first stator lamination, the second stator lamination, and the stator inner support, wherein the segmented core is as claimed in any one of claims 1 to 6.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811008350.7A CN108736597B (en) | 2018-08-31 | 2018-08-31 | Sectional iron core and disc type motor |
| JP2021511601A JP7153403B2 (en) | 2018-08-31 | 2019-08-14 | Segment core and disk motor |
| PCT/CN2019/100587 WO2020042912A1 (en) | 2018-08-31 | 2019-08-14 | Segment core and axial flux motor |
| US17/272,038 US11929641B2 (en) | 2018-08-31 | 2019-08-14 | Segmented core with laminated core installed in SMC embedded groove |
| EP19854152.6A EP3846318A4 (en) | 2018-08-31 | 2019-08-14 | Segment core and axial flux motor |
| US18/393,691 US20240128807A1 (en) | 2018-08-31 | 2023-12-22 | Segment core and axial flux motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811008350.7A CN108736597B (en) | 2018-08-31 | 2018-08-31 | Sectional iron core and disc type motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108736597A CN108736597A (en) | 2018-11-02 |
| CN108736597B true CN108736597B (en) | 2021-06-08 |
Family
ID=63941887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811008350.7A Active CN108736597B (en) | 2018-08-31 | 2018-08-31 | Sectional iron core and disc type motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108736597B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020042912A1 (en) * | 2018-08-31 | 2020-03-05 | 浙江盘毂动力科技有限公司 | Segment core and axial flux motor |
| AT522710A1 (en) * | 2019-07-09 | 2021-01-15 | Miba Sinter Austria Gmbh | Stator for an axial flux machine |
| CN112821702A (en) * | 2019-11-15 | 2021-05-18 | 通用汽车环球科技运作有限责任公司 | Hybrid stator core piece design for axial flux motor |
| CN111756125B (en) * | 2020-05-21 | 2021-07-27 | 东南大学 | Axial magnetic motor stator |
| CN112134381B (en) * | 2020-08-19 | 2023-03-24 | 沈阳工业大学 | Built-in magnetic steel composite pole rotor for axial flux permanent magnet motor |
| CN112564330B (en) * | 2020-12-24 | 2024-04-02 | 沈阳裕衡驱动科技有限公司 | Multi-rotor motor stator core structure |
| CN114726116A (en) * | 2022-04-28 | 2022-07-08 | 浙江盘毂动力科技有限公司 | Iron core and axial magnetic field motor, forming method and size control method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101783537A (en) * | 2009-01-19 | 2010-07-21 | 德昌电机(深圳)有限公司 | Iron core combination for motor |
| CN105762950A (en) * | 2016-03-10 | 2016-07-13 | 东南大学 | Axial magnetic field permanent magnetism motor and manufacturing method thereof |
| CN206461445U (en) * | 2017-02-14 | 2017-09-01 | 东莞市德玛电子有限公司 | A kind of stator monomer |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102315741A (en) * | 2011-08-31 | 2012-01-11 | 东南大学 | Axial permanent magnet motor with modularized amorphous alloy stator |
| US20140070659A1 (en) * | 2012-09-07 | 2014-03-13 | Samsung Electro-Mechanics Co., Ltd. | Stator assembly for motor |
| CN208674978U (en) * | 2018-08-31 | 2019-03-29 | 核心驱动科技（金华）有限公司 | A kind of segment core and disc type electric machine |
-
2018
- 2018-08-31 CN CN201811008350.7A patent/CN108736597B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101783537A (en) * | 2009-01-19 | 2010-07-21 | 德昌电机(深圳)有限公司 | Iron core combination for motor |
| CN105762950A (en) * | 2016-03-10 | 2016-07-13 | 东南大学 | Axial magnetic field permanent magnetism motor and manufacturing method thereof |
| CN206461445U (en) * | 2017-02-14 | 2017-09-01 | 东莞市德玛电子有限公司 | A kind of stator monomer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108736597A (en) | 2018-11-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108736597B (en) | Sectional iron core and disc type motor | |
| WO2020042912A1 (en) | Segment core and axial flux motor | |
| US7932650B2 (en) | Motor stator and molded motor | |
| JP4607964B2 (en) | Electric motor stator, electric motor, pump, and electric motor manufacturing method | |
| JP5296888B2 (en) | Method for manufacturing molded stator of rotating electric machine | |
| EP1638185A2 (en) | Stator of motor and method of manufacturing the same | |
| US20050138793A1 (en) | Abduction-type motor and fabrication method of motor stator thereof | |
| EP2738913A2 (en) | Stator of brushless motor with outer rotor and its manufacturing method | |
| RU2287888C2 (en) | Method for manufacturing brushless dc motor stator and stator of brushless dc motor manufactured by this method | |
| CN108696005B (en) | Sectional iron core and disc type motor | |
| CN109167452B (en) | Axial magnetic field motor stator assembly and assembling method | |
| CN211790978U (en) | Novel disc iron core structure and disc motor | |
| JP3515280B2 (en) | Method of manufacturing stator for rotating electric machine | |
| CN208674978U (en) | A kind of segment core and disc type electric machine | |
| CN209994171U (en) | Compact excitation motor stator | |
| JP2016116421A (en) | Rotary electric machine | |
| JP5382869B2 (en) | Stator core manufacturing method | |
| CN113572278A (en) | Brushless motor stator and brushless motor | |
| CN112421897A (en) | Manufacturing method of stator core of yoke-free segmented armature axial flux motor | |
| CN216564672U (en) | Stator module, motor and motorised valve | |
| JPH11289721A (en) | Laminated stator core and its manufacture method | |
| CN210111711U (en) | Segmented iron core, disc type iron core and disc type motor | |
| CN111371271B (en) | Plastic package method for DDM stator and rotor | |
| CN220570370U (en) | Stator structure and motor | |
| JP3241105U (en) | Common insulator for motor stator |
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 | ||
| CB02 | Change of applicant information |
Address after: 321100 Jiangnan Park 23, Lanxi Economic Development Zone, Jinhua, Zhejiang Applicant after: Zhejiang Panhu Power Technology Co., Ltd. Address before: 321100 Jiangnan Park 23, Lanxi Economic Development Zone, Jinhua, Zhejiang Applicant before: Core drive technology (Jinhua) Co., Ltd. |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |