CN108364744B - Laminated iron core and fastening method thereof - Google Patents
Laminated iron core and fastening method thereof Download PDFInfo
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- CN108364744B CN108364744B CN201810233403.9A CN201810233403A CN108364744B CN 108364744 B CN108364744 B CN 108364744B CN 201810233403 A CN201810233403 A CN 201810233403A CN 108364744 B CN108364744 B CN 108364744B
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 84
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000004080 punching Methods 0.000 claims abstract description 39
- 238000003825 pressing Methods 0.000 claims abstract description 12
- 239000000178 monomer Substances 0.000 claims abstract description 10
- 239000000084 colloidal system Substances 0.000 claims abstract description 6
- 238000004519 manufacturing process Methods 0.000 description 8
- 229910000976 Electrical steel Inorganic materials 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 235000001674 Agaricus brunnescens Nutrition 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F3/00—Cores, Yokes, or armatures
- H01F3/02—Cores, Yokes, or armatures made from sheets
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F3/00—Cores, Yokes, or armatures
- H01F3/10—Composite arrangements of magnetic circuits
- H01F3/14—Constrictions; Gaps, e.g. air-gaps
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0206—Manufacturing of magnetic cores by mechanical means
- H01F41/0233—Manufacturing of magnetic circuits made from sheets
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention relates to the technical field of laminated iron core processing, in particular to a laminated iron core, which comprises an iron core body and a strip nail body; the chain riveting comprises a chain riveting body and a chain riveting body, wherein the chain riveting body comprises a head and a columnar riveting rod; the edge of the punching sheet is provided with the groove to replace the prior art that the punching sheet is directly punched, so that the cost of the die is saved; the T-shaped chain riveting or the L-shaped chain riveting is adopted to replace a round head rivet in the prior art, and has the advantages of low cost, convenience and quickness in assembly; the riveting end of the riveting rod of the strip nail body is subjected to plastic deformation through the iron core pressing process and riveting pressure, so that the purpose of pressing the iron core body is achieved, the colloid attached to the outer side of the adhesion strip nail monomer increases the power-on resistance between the rivet and the iron core body, and the eddy current loss of the iron core is favorably reduced.
Description
Technical Field
The invention relates to the technical field of laminated iron core processing, in particular to a laminated iron core and a fastening method thereof.
Background
The laminated core is widely applied to electromechanical products, such as a transformer core, a contactor core, a relay core, a ballast core, a motor core and the like in an electrical appliance, taking the motor core as an example, the motor core fastened by rivets is formed by longitudinally stacking a plurality of electrical steel punching sheets, a plurality of circular through holes (please refer to fig. 1) are usually arranged in the existing motor punching sheet structure, and after the punching sheets are longitudinally stacked, the rivets penetrate through the circular through holes to fasten the longitudinally stacked punching sheets; in the fastening mode of the motor core, if the fastening efficiency of the motor core needs to be improved, automatic equipment specially used for nailing the round-head rivet needs to be designed, the head of the round-head rivet is usually circular or mushroom-shaped, and automatic transverse arrangement of a plurality of rivets is difficult to realize, so that the production of the automatic equipment specially used for nailing the round-head rivet needs to design a complicated mechanical structure, the cost is high, more man-hours are consumed for realizing automatic arrangement of the round-head rivet, through holes with the same specification and position are formed in a plurality of punching sheets, the precision requirement on a punching sheet die is high, the structure is complicated, the manufacturing difficulty of the punching sheet die is high, and the round-head rivet needs to adopt complicated equipment to realize automatic fastening; in conclusion, in the fastening technology of the electrolytic iron core with the round head rivet penetrating through the round through hole, the problems of high processing cost and low efficiency exist.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: provided are a laminated core and a fastening method thereof, which are inexpensive and efficient to machine.
In order to solve the technical problems, the invention adopts the technical scheme that:
the laminated iron core comprises an iron core body and a strip nail single body, wherein the strip nail single body is formed by connecting the iron core with a strip nail or a gas strip nail;
the chain riveting single body comprises a head and a columnar riveting rod, and the head is connected with the riveting rod; the head part is a T-shaped head or an L-shaped head;
the iron core body is formed by longitudinally stacking a plurality of punching sheets, and a plurality of grooves or through holes matched with the riveting rods of the strip nail monomers are formed in the edge of the iron core body.
There is also provided a laminated core fastening method including the steps of:
s1: a groove or a through hole is formed in the edge of the punching sheet;
s2: longitudinally stacking a plurality of punching sheets provided with grooves or through holes, and aligning the grooves or the through holes to obtain an iron core body;
s3: the riveting rods of the single row nails penetrate through the grooves or the through holes, so that the side surfaces of the riveting rods are matched with the grooves or the through holes;
s4: and longitudinally pressing the iron core body, and riveting the riveting end of the single nail row body so as to enable the riveting end of the single nail row body to generate plastic deformation.
The invention has the beneficial effects that: according to the invention, the round-head rivet used for stacking and fixing the punching sheets in the prior art is replaced by the row nails, so that the row nails are low in manufacturing cost; the gas row nails are generally supplied by arranging and adhering, or the iron core row nails are prefabricated into a material which is arranged in sequence and used by adhering with colloid, so that the material is conveniently charged in the process of fastening the laminated iron core; on the other hand, the laminated core related by the invention has the advantages that the through holes for stacking and fixing the punching sheets in the prior art are reformed into the grooves, so that the structure of the punching sheet die is simplified, and the manufacturing cost of the punching sheet die is reduced.
In the laminated iron core fastening method, the round-head rivet in the prior art is replaced by the strip nail, and the strip nail has the advantages of low cost, convenience and quickness in assembly; the riveting end of the riveting rod of the strip nail is subjected to plastic deformation through the iron core pressing process and riveting extrusion so as to achieve the purpose of pressing the iron core body; the edge of the punching sheet is provided with the groove, and the strip nail single body is directly punched on the punching sheet, so that the cost of the die is saved; the laminated core fastening method has the advantages of low cost and high efficiency.
Drawings
FIG. 1 is a schematic view of a silicon steel sheet in the prior art;
fig. 2 is a schematic structural view of a laminated core according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a core body of a laminated core according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of a single nail row of a T-shaped head of a laminated core according to an embodiment of the present invention;
FIG. 5 is a schematic structural view of a row pin unit of an L-shaped head of a laminated core according to an embodiment of the present invention;
description of reference numerals:
1. an iron core body; 11. punching; 12. a groove; 121. a limiting protrusion; 2. arranging nail single bodies;
21. a head portion; 22. and riveting the connecting rod.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
The most key concept of the invention is as follows: through adopting the iron core of L shape or T shape to link gang nail or gas gang nail to replace being used for the punching sheet to pile up the cylindrical rivet of fixed mushroom head among the prior art, gang nail low in cost, and be convenient for feed in the lamination formula iron core fastening process.
Referring to fig. 2 to 5, the present invention relates to a laminated core, which includes a core body 1 and a strip nail unit 2;
the single chain riveting unit 2 comprises a head 21 and a columnar riveting rod 22, wherein the head 21 is connected with the riveting rod 22; the head 21 comprises a T-shaped head or an L-shaped head;
the iron core body 1 is formed by longitudinally stacking a plurality of punching sheets 11, and a plurality of grooves 12 or through holes matched with the riveting rods 22 of the strip nail single bodies 2 are formed in the edge of the iron core body 1.
Description of the structure of the laminated core:
the iron core connecting chain nails are formed by sequentially arranging a plurality of chain nail monomers with the same specification;
the iron core connecting chain nails sequentially formed by the arrangement and combination of the plurality of chain nail monomers with the same specification are adhered by colloid;
the cylindrical riveting rod can be designed into a quadrangular prism.
The laminated iron core has the beneficial effects that: according to the invention, the row nails 2 are adopted to replace the round-head rivets used for stacking and fixing the silicon steel punching sheets 11 in the prior art, on one hand, the row nail single bodies 2 are low in manufacturing cost, and the row nail single bodies 2 are generally arranged and adhered to supply materials, so that the materials can be conveniently charged in the laminated iron core fastening process. And the colloid attached to the outer side of the adhesion chain riveting monomer increases the power-on resistance between the rivet and the iron core body, and is beneficial to reducing the eddy current loss of the iron core.
Further, in the laminated core structure, the transverse cross section of the rivet rod is rectangular, the length of the rivet rod 22 is greater than the thickness of the core body 1 by 0.1-1mm, a transverse length of the rivet rod 22 is smaller than the depth of the corresponding groove 12 by 0.2-0.4mm, or a transverse length of the rivet rod 22 is smaller than a transverse length of the corresponding through hole by 0.2-0.4 mm.
As an embodiment of the invention, an iron core with a thickness of 27.5-28.2mm after being compressed is provided with a pneumatic strip nail with a model of F30, correspondingly, the length of a riveting rod 22 of a strip nail single body 2 is designed to be 28.5mm, when the iron core body 1 is compressed, the riveting end of the strip nail single body 2, which is longer than the iron core body 1, is subjected to external force riveting to deform and compress one end of a groove 12, and the other end of the groove 12 is compressed by a head 21, so that two ends of the strip nail single body 2 are compressed to two ends of the groove 12 of the iron core body 1, and the fastening of a laminated iron core is realized; the transverse length of the riveting rod 22 is 0.2-0.4mm smaller than the depth of the corresponding groove 12, so that the riveting rod 22 can be conveniently inserted into the groove 12; on the other hand, because there is certain error in the thickness of iron core body 1, if iron core body 1 thickness is thinner than the standard value, the length of chain riveting monomer 2 probably is greater than more than 1 thickness 0.3mm of iron core body, be unfavorable for the use of iron core, because the riveting end of chain riveting monomer 2 is receiving external force riveting to take place when deforming, riveting pole 22 also produces certain bending, the clearance between riveting pole 22 and recess 12 provides certain space for riveting pole 22 is crooked, thereby shorten riveting pole 22's length, the one end that compresses tightly recess 12 that the riveting end that makes chain riveting monomer 2 can be stable after receiving the riveting, and be favorable to the iron core to use.
Further, in the laminated core structure, the rivet bar 22 has a quadrangular prism shape.
Further, in the laminated core structure, the edge of the core body 1 is provided with a plurality of grooves 12 matched with the riveting rods of the T-shaped gas strip nails.
Through being used for piling up fixed closed through-hole to reform transform into recess 12 towards piece 11 among the prior art, simplified towards piece 11 mould structure, reduced towards the manufacturing cost of piece 11 mould.
Further, in the laminated core structure, one end of the side wall of the groove 12 close to the opening is provided with a limiting protrusion 121.
Through being equipped with spacing arch 121 at recess 12 lateral wall near open-ended one end, make the open end of recess 12 narrow, prevent the chain riveting monomer 2 that is used for the fastening from the recess 12 opening part roll-off to the steadiness of laminated core has further been guaranteed.
Further, in the laminated core structure, the head 21 is a T-shaped head.
Further, in the laminated core structure, the core body 1 is specifically a motor core; the motor iron core is specifically a stator iron core or a rotor iron core.
Further, in the laminated core structure, the core body 1 is specifically a transformer core.
Further, in the laminated core structure, the core body 1 is specifically a contactor core.
Further, in the laminated core structure, the core body 1 is specifically a ballast core.
Further, in the laminated core structure, the core body 1 is specifically a relay core.
The invention also provides a laminated iron core fastening method, which comprises the following steps:
s1: a groove 12 or a through hole is formed on the edge of the punching sheet 11;
s2: longitudinally stacking a plurality of punching sheets 11 provided with grooves 12 or through holes and aligning the grooves 12 or the through holes to obtain an iron core body 1;
s3: the riveting rod 22 of the strip nail single body 2 is arranged in the groove 12 or the through hole in a penetrating way, so that the side surface of the riveting rod 22 is in clearance fit with the groove 12 or the through hole;
s4: and longitudinally pressing the iron core body 1, and riveting the riveting end of the chain riveting single body 2, so that the riveting end of the chain riveting single body 2 is subjected to plastic deformation.
In the laminated iron core fastening method, the groove 12 is formed in the inner ring of the silicon steel stamped sheet 11 to replace the situation that the silicon steel stamped sheet 11 is directly perforated in the prior art, so that the cost of a die is saved; the chain riveting single body 2 is adopted to replace a round head rivet in the prior art, and the chain riveting single body 2 has the advantages of low cost, convenient and quick assembly; the riveting end of the riveting rod 22 of the strip nail single body 2 is subjected to plastic deformation through an iron core pressing process and riveting, so that the purpose of pressing the iron core body 1 is achieved; the edge of the punching sheet is provided with the groove, and the strip nail single body is directly punched on the punching sheet, so that the cost of the die is saved; the laminated core fastening method has the advantages of low cost and high efficiency.
Example 1
A laminated iron core comprises an iron core body 1 and a strip nail single body 2; the strip nail single body 2 comprises a T-shaped head and a columnar riveting rod 22, and the T-shaped head is connected with the riveting rod 22; the iron core body 1 is formed by longitudinally stacking a plurality of punching sheets 11, and a plurality of grooves 12 in clearance fit with the riveting rods 22 of the strip nail single bodies 2 are formed in the inner ring of the iron core body 1; the type of the chain riveting single body 2 is F30; the length of the riveting rod 22 is greater than the thickness of the iron core body 1 by 0.1mm, and the transverse length of the riveting rod 22 is less than the depth of the corresponding groove 12 by 0.2 mm; the riveting rod 22 is in the shape of a quadrangular prism; one end of the side wall of the groove 12 close to the opening is provided with a limiting protrusion 121.
Example 2
A laminated iron core comprises an iron core body 1 and a strip nail single body 2; the chain riveting single body 2 comprises an L-shaped head and a columnar riveting rod 22, and the L-shaped head is connected with the riveting rod 22; the iron core body 1 is formed by longitudinally stacking a plurality of punching sheets 11, and the inner ring of the iron core body 1 is provided with a plurality of through holes in clearance fit with the riveting rods 22 of the strip nail single bodies 2; the type of the chain riveting single body 2 is F30; the length of the riveting rod 22 is greater than the thickness of the iron core body 1 by 0.1mm, and the transverse length of the riveting rod 22 is less than the transverse length of the corresponding through hole by 0.2 mm; the riveting rod 22 is in the shape of a quadrangular prism; one end of the side wall of the groove 12 close to the opening is provided with a limiting protrusion 121.
Example 3
The laminated core according to embodiment 1 or embodiment 2, wherein the core body 1 is specifically a motor core; the motor iron core is specifically a stator iron core or a rotor iron core.
Example 4
The laminated core according to embodiment 1 or embodiment 2, wherein the core body 1 is a transformer core.
Example 5
The laminated core according to embodiment 1 or embodiment 2, wherein the core body 1 is specifically a contactor core.
Example 6
The laminated core of embodiment 1 or embodiment 2, wherein the core body 1 is specifically a ballast core.
Example 7
In the laminated core according to embodiment 1 or embodiment 2, the core body 1 is specifically a relay core.
Example 8
In the laminated core according to embodiment 1, the length of the rivet rod 22 is 1mm greater than the thickness of the core body 1, and the radial length of the rivet rod 22 is 0.4mm less than the depth of the groove 12;
example 9
In the laminated core according to embodiment 1, the length of the rivet rod 22 is 0.5mm greater than the thickness of the core body 1, and the radial length of the rivet rod 22 is 0.3mm less than the depth of the groove 12;
example 10
A laminated core fastening method comprising the steps of:
s1: a groove 12 or a through hole is formed in the inner ring of the punching sheet 11;
s2: longitudinally stacking a plurality of silicon steel punching sheets 11 provided with grooves 12 or through holes and aligning the grooves 12 or the through holes to obtain an iron core body 1;
s3: the riveting rod 22 of the strip nail single body 2 is arranged in the groove 12 or the through hole in a penetrating way, so that the side surface of the riveting rod 22 is in clearance fit with the groove 12 or the through hole;
s4: and longitudinally pressing the iron core body 1, and riveting the riveting end of the chain riveting single body 2, so that the riveting end of the chain riveting single body 2 is subjected to plastic deformation.
In conclusion, in the laminated core structure, the round-head rivet used for stacking and fixing the punching sheets in the prior art is replaced by the row nails, so that the row nails are low in manufacturing cost; the gas row nails are generally supplied by arranging and adhering, or the iron core row nails are prefabricated into a material which is arranged in sequence and used by adhering with colloid, so that the material is conveniently charged in the process of fastening the laminated iron core; on the other hand, the laminated core related by the invention has the advantages that the through holes for stacking and fixing the punching sheets in the prior art are reformed into the grooves, so that the structure of the punching sheet die is simplified, and the manufacturing cost of the punching sheet die is reduced.
In the laminated iron core fastening method, the round-head rivet in the prior art is replaced by the strip nail, and the strip nail has the advantages of low cost, convenience and quickness in assembly; the riveting end of the riveting rod of the strip nail is subjected to plastic deformation through an iron core pressing process and riveting so as to achieve the purpose of pressing the iron core body; the edge of the punching sheet is provided with the groove, and the strip nail single body is directly punched on the punching sheet, so that the cost of the die is saved; the laminated core fastening method has the advantages of low cost and high efficiency.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.
Claims (8)
1. A laminated iron core is characterized by comprising an iron core body and a strip nail single body, wherein the strip nail single body is a strip nail single body of an iron core connecting strip nail or a gas strip nail;
the chain riveting single body comprises a head and a columnar riveting rod, wherein the outer side of the riveting rod is attached with a colloid, and the head is connected with the riveting rod;
the iron core body is formed by longitudinally stacking a plurality of punching sheets, a plurality of grooves or through holes matched with the riveting rods of the strip nail monomers are formed in the edge of the iron core body, and the head is a T-shaped head or an L-shaped head.
2. The laminated core according to claim 1, wherein the rivet bar is in the shape of a quadrangular prism.
3. The laminated core according to claim 2, wherein the riveting bars are rectangular in transverse cross-section, the length of the riveting bars is 0.1-1mm greater than the core body thickness, a transverse length of the riveting bars is 0.2-0.4mm less than the corresponding groove depth or a transverse length of the riveting bars is 0.2-0.4mm less than the corresponding through hole transverse length.
4. The laminated core according to claim 1, wherein the recess side wall is provided with a stopper projection at an end thereof adjacent to the opening.
5. The laminated core according to claim 1, wherein the core body is in particular a motor core; the motor iron core is specifically a stator iron core or a rotor iron core.
6. The laminated core of claim 1, wherein the core body is a transformer core.
7. The laminated core according to claim 1, wherein the core body is in particular a contactor core.
8. The fastening method of the laminated core according to any one of claims 1 to 7, comprising the steps of:
s1: a groove or a through hole is formed in the edge of the punching sheet;
s2: longitudinally stacking a plurality of punching sheets provided with grooves or through holes, and aligning the grooves or the through holes to obtain an iron core body;
s3: the riveting rods of the single row nails penetrate through the grooves or the through holes, so that the side surfaces of the riveting rods are matched with the grooves or the through holes;
s4: and longitudinally pressing the iron core body, and riveting the riveting end of the single nail row body so as to enable the riveting end of the single nail row body to generate plastic deformation.
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| CN201810233403.9A CN108364744B (en) | 2018-03-21 | 2018-03-21 | Laminated iron core and fastening method thereof |
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| CN201810233403.9A CN108364744B (en) | 2018-03-21 | 2018-03-21 | Laminated iron core and fastening method thereof |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB737068A (en) * | 1952-12-31 | 1955-09-21 | Lignes Telegraph Telephon | Improvements in or relating to the manufacture of magnetic cores |
| CN201225355Y (en) * | 2008-06-06 | 2009-04-22 | 林光明 | Special pneumatic nail for building woodwork |
| CN202759348U (en) * | 2012-06-20 | 2013-02-27 | 常州市旭泉精密电机有限公司 | Motor core punching sheet laminating and riveting structure with glue layers |
| CN203070861U (en) * | 2013-03-13 | 2013-07-17 | 宁波宁港永磁材料有限公司 | Rare earth permanent magnet |
| CN204755526U (en) * | 2015-07-03 | 2015-11-11 | 浙江超越五金化工有限公司 | Fastening shaped steel chain riveting |
| CN105703506A (en) * | 2016-03-14 | 2016-06-22 | 南京航空航天大学 | Motor rotor structure capable of reducing eddy-current loss |
| CN205451994U (en) * | 2016-03-09 | 2016-08-10 | 林海平 | Low eddy current loss reactor |
| CN107196432A (en) * | 2016-03-14 | 2017-09-22 | 瑞智精密股份有限公司 | Self-riveting motor rotor is unshakable in one's determination |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6185028A (en) * | 1984-09-28 | 1986-04-30 | Matsushita Seiko Co Ltd | Stator core for motor |
| KR101154994B1 (en) * | 2006-06-26 | 2012-06-14 | 엘지전자 주식회사 | Stator core |
| CN203691089U (en) * | 2013-09-27 | 2014-07-02 | 北京明诚技术开发有限公司 | Rotor core and stator core |
| CN203774894U (en) * | 2014-01-20 | 2014-08-13 | 林汉光 | Stator core with novel structure |
| CN105990916B (en) * | 2015-01-30 | 2020-03-17 | 德昌电机(深圳)有限公司 | Armature of motor |
| CN107332366A (en) * | 2017-06-29 | 2017-11-07 | 合普动力股份有限公司 | The fastening structure of split-type stator core |
-
2018
- 2018-03-21 CN CN201810233403.9A patent/CN108364744B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB737068A (en) * | 1952-12-31 | 1955-09-21 | Lignes Telegraph Telephon | Improvements in or relating to the manufacture of magnetic cores |
| CN201225355Y (en) * | 2008-06-06 | 2009-04-22 | 林光明 | Special pneumatic nail for building woodwork |
| CN202759348U (en) * | 2012-06-20 | 2013-02-27 | 常州市旭泉精密电机有限公司 | Motor core punching sheet laminating and riveting structure with glue layers |
| CN203070861U (en) * | 2013-03-13 | 2013-07-17 | 宁波宁港永磁材料有限公司 | Rare earth permanent magnet |
| CN204755526U (en) * | 2015-07-03 | 2015-11-11 | 浙江超越五金化工有限公司 | Fastening shaped steel chain riveting |
| CN205451994U (en) * | 2016-03-09 | 2016-08-10 | 林海平 | Low eddy current loss reactor |
| CN105703506A (en) * | 2016-03-14 | 2016-06-22 | 南京航空航天大学 | Motor rotor structure capable of reducing eddy-current loss |
| CN107196432A (en) * | 2016-03-14 | 2017-09-22 | 瑞智精密股份有限公司 | Self-riveting motor rotor is unshakable in one's determination |
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| CN108364744A (en) | 2018-08-03 |
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