CN107306060A - Motor coil, motor and motor coil processing unit (plant) - Google Patents
Motor coil, motor and motor coil processing unit (plant) Download PDFInfo
- Publication number
- CN107306060A CN107306060A CN201710264752.2A CN201710264752A CN107306060A CN 107306060 A CN107306060 A CN 107306060A CN 201710264752 A CN201710264752 A CN 201710264752A CN 107306060 A CN107306060 A CN 107306060A
- Authority
- CN
- China
- Prior art keywords
- groove
- coil
- core
- motor
- pressurization part
- 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.)
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Classifications
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/0056—Manufacturing winding connections
- H02K15/0062—Manufacturing the terminal arrangement per se; Connecting the terminals to an external circuit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/04—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of windings, prior to mounting into machines
Abstract
The present invention provides motor coil, motor and motor coil processing unit (plant), the motor includes core with coil and surrounds the coat of above-mentioned core, above-mentioned overhang includes being formed at above-mentioned coat and formed and the second groove with above-mentioned first groove side by side with making the first groove of the above-mentioned core exposed to outside and the surface indentation in above-mentioned core, the advantageous effects for causing welding quality to decline there is provided the energization prevented due to coat obstruction coil and terminal so as to a part for the coat for removing coil in the bound fraction of coil and terminal.
Description
Technical field
The present invention relates to motor coil, motor and motor coil processing unit (plant).
Background technology
In motor, the rotary shaft formed in the way of it can rotate, the rotor combined with rotary shaft, Yi Jigu are provided with
Due to the stator of case inside, and along surrounding's interval of rotor, stator is set.Also, wound on stator tangible
Cause the electric interactions of stator and rotor into the coil of rotating excitation field, so that the rotation of guided rotor.
The top and end for being wound in the coil of stator can be with for the interconnected terminal between coil or being connected
The terminals fuse (fusing) of device and link.
In terminal and coil welding, electric current produces heat in the contact area flowing of terminal and coil.Now, coil
Enamel layer (enamel) prevents the current lead-through between terminal and coil, and declines the engaging force of coil and terminal, thus sends out
The problem of sub adhesion with coil of causing trouble declines.
The content of the invention
Here, the present invention proposes to solve the above problems, it is therefore intended that offer can improve coil and terminal
Adhesion motor coil and motor coil processing unit (plant).
In order to achieve the above object, embodiment can provide motor coil, and the motor includes core and encirclement with coil
The coat of above-mentioned core, above-mentioned overhang includes the first groove and the second groove, and above-mentioned first groove is formed at above-mentioned coat
And make above-mentioned core exposed to outside, above-mentioned second groove canyon topography into the surface in above-mentioned core and with above-mentioned first groove simultaneously
Row.
Preferably, the side wall of above-mentioned first groove can be continuous with the side wall of above-mentioned second groove.
Preferably, the side wall of above-mentioned first groove can include inclined plane, and the side wall of above-mentioned second groove can include curved surface.
Preferably, the width of above-mentioned second groove can be bigger than depth.
Preferably, can be formed must be big slighter than above-mentioned first groove for the size of above-mentioned second groove.
Preferably, above-mentioned first groove and above-mentioned second groove could be formed with multiple, multiple above-mentioned first grooves and above-mentioned second
Groove balanced configuration on the basis of the section center of above-mentioned core.
Preferably, above-mentioned first groove and above-mentioned second groove could be formed with multiple, multiple above-mentioned first grooves and above-mentioned second
Length direction of the groove along above-mentioned core is configured at regular intervals.
In order to achieve the above object, a kind of motor can be provided, the motor includes：Rotary shaft；Rotor, the rotor with it is above-mentioned
Rotary shaft is combined, and is configured at the outside of above-mentioned rotary shaft；And stator, the stator arrangement is in the outside of above-mentioned rotor, winding
There is coil, above-mentioned coil includes core and surrounds the coat of above-mentioned core, and above-mentioned overhang includes the first groove and second
Groove, above-mentioned first groove is formed at above-mentioned coat and makes above-mentioned core on outside, above-mentioned second groove canyon topography Cheng Yu
State the surface of core and with above-mentioned first groove side by side.
In order to achieve the above object, another embodiment is related to motor coil processing unit (plant), and configuration is for being wound with motor
On path with the stator movement of coil, said motor includes core with coil and surrounds the coat of above-mentioned core, wherein, can
So that including the first pressurization part and the second pressurization part, above-mentioned first pressurization part and the second pressurization part are right across above-mentioned overhang
Configure with putting, and both above-mentioned first pressurization part and the second pressurization part at least any one to include scratch processing prominent
Rise, above-mentioned scratch processing projection makes above-mentioned core exposed to outside the with prominent prominent form in the formation of above-mentioned coat
One groove, and the surface of above-mentioned core is processed in the way of being recessed and the second groove with above-mentioned first groove side by side is formed.
Preferably, the first drive division can be included, above-mentioned first drive division adds with above-mentioned first pressurization part and above-mentioned second
Splenium links respectively, and above-mentioned first pressurization part and above-mentioned second pressurization part is retreated in the first direction movement.
Preferably, above-mentioned first pressurization part and above-mentioned second pressurization part can include pressurizing block and main body respectively, above-mentioned to add
Briquetting is formed with above-mentioned scratch processing projection, and aforementioned body links with above-mentioned pressurizing block and above-mentioned first drive division.
Preferably, above-mentioned pressurizing block can in the way of it can load and unload with aforementioned body link.
Preferably, housing can also be included, above-mentioned housing includes above-mentioned first drive division, and including guide portion, it is above-mentioned
Guide portion supports above-mentioned first pressurization part and above-mentioned second pressurization part to slide.
Preferably, the second drive division can be included, above-mentioned second drive division links with above-mentioned housing and makes above-mentioned housing edge
The second direction movement vertical with above-mentioned first direction.
Preferably, the 3rd drive division can be included, above-mentioned 3rd drive division links and made above-mentioned with above-mentioned second drive division
Second drive division is moved along above-mentioned first direction.
According to embodiment, a part for the coat of coil is removed in the bound fraction of coil and terminal, and provides anti-
Only because coat hinders the energization of coil and terminal and causes the advantageous effects of welding quality decline.
According to embodiment, possess the first pressurization part and the second pressurization part, first pressurization part and the configuration of the second pressurization part exist
On the mobile route of stator, it is included in the scratch processing of a part for the coat of the bound fraction removal coil of coil and terminal
There is provided prevent due to the advantageous effects that coat hinders the energization of coil and terminal and causes welding quality to decline for projection.
Brief description of the drawings
Fig. 1 is the figure for showing to implement the motor involved by embodiment.
Fig. 2 is to show the figure with the overhang of terminals fuse.
Fig. 3 is the figure for showing the motor overhang involved by embodiment.
Fig. 4 is the figure for the longitudinal profile for showing the coil shown in Fig. 3.
Fig. 5 is the figure for the horizontal section for showing the coil shown in Fig. 3.
Fig. 6 is the figure for showing the coil processing unit (plant) involved by embodiment.
Fig. 7 is the figure for the mobile route for showing stator.
Fig. 8 is to show that scratch processes the figure of projection.
Fig. 9 is the figure for the forming process for showing the first groove and the second groove.
Embodiment
Below, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.The purpose of the present invention, specific advantage
And novel feature is become more fully apparent by the following detailed description and preferred embodiment with reference to accompanying drawing.Also, in this theory
The term and word that are used in bright book and claims are not necessarily to be construed as the implication in usual implication or dictionary, but should
The principle of term is suitably defined from inventor in order to illustrate the invention of oneself in optimal method, is interpreted and this
Implication and concept that the technical concept of invention is consistent.Also, when illustrating the present invention, the master for can unnecessarily make the present invention
The explanation of the unclear relatively known technology of purport is omitted.
Term including the ordinal number as " second ", " first " etc. can be used for illustrating a variety of inscapes, but above-mentioned
Inscape is not limited by above-mentioned term.Above-mentioned term is only applied to distinguish an inscape and another inscape
Purpose, for example do not depart from the present invention interest field while, the second inscape can be named as the first composition will
Element, similarly, the first inscape can also be named as the second inscape." and/or " this term include and multiple phases
Close the combination in the project recorded or any one project in multiple related projects recorded.
Fig. 1 is the figure for showing the motor involved by embodiment.
Reference picture 1, motor can include rotor 100, rotary shaft 200, stator 300 and position detection unit 400, busbar
500。
Rotor 100 is configured at the inner side of stator 200.Rotor 100 is rotated by the electric interaction with stator 200.
Rotor 100 can be constituted in rotor core combination magnet.
Rotor core can be constituted with multiple rotor plates of laminated thin plate shape.In addition, rotor core can be formed as with
It is one-piece type that tubbiness is constituted.On the other hand, rotor core can also be to be laminated multiple circles by making inclination (skew) angle different
The form of disk (puck) is implemented.
Rotor 100 can be divided into following form according to the binding site of magnet and implement.For SPM (Surface
Permanent Magnet, surface permanent magnetic body) form rotor 100 for, magnet is combined with the outer peripheral face of rotor core.Phase
Instead, for the rotor 100 of IPM (Inner permanent Magnet, built-in type permanent magnet) form, magnet is inserted in shape
Combined into the pocket hole of the inside in rotor core.
For the rotor 100 of SPM forms, magnet attachment can include surrounding magnet in the outer peripheral face of rotor core
Tank component.
Rotary shaft 200 can be combined with rotor 100.Rotary shaft 200 can be pressed into the center that is formed at rotor core
Assembled in hole.
EPS motor can be provided for detecting the position detection unit 400 of the position of rotor 100.Position detection unit 400
Sense magnets and magnetic cell can be included.Sense magnets are combined and rotated with rotary shaft 200.Magnetic cell is opposed to sense magnets
Configuration.Magnetic cell can be installed on tellite.The sense magnets that magnetic cell is detected and rotary shaft 200 rotates in linkage
Magnetic flux change, thus detects the rotation position of rotor 100.
Stator 300 is configured at the inner side of rotor 100.Stator 300 can include stator bore and be arranged on stator bore and
Cause the coil with the electric interactions of the magnet of rotor 100.
Stator 300 can be constituted with multiple plates of laminated thin plate form.In addition, stator bore can be formed as with tubbiness structure
Into it is one-piece type.Also, stator bore can be provided with the multiple stator teeths protruded inwardly.Can be with each stator teeth
Convolute coil.On the other hand, stator bore can be made up of multiple segmentation cores.In addition, stator bore can be formed as with bucket
It is one-piece type that shape is constituted.In stator teeth, insulator can be set.Coil can be wound on insulator.
In the state of stator teeth is wrapped in, overhang is top and end, for the company of coil each other
Knot links with terminals fuse (fusing) with the link of external power source.
Busbar 500 can be only fitted on stator 300.Also, busbar 500 can be included in annular molded parts and
Runic part and the terminal including linking with the top and end of coil.
Fig. 2 is to show the figure with the overhang of terminals fuse.
Reference picture 2, in the state of the end of coil 600 is with vertical stand-up, with state welding that terminal 510 is wound and
With reference to.Now, the end of coil 600 and the contact area of terminal 510 are powered.Now, the coat of coil 600 may interfere with logical
Electricity.
Fig. 3 is the figure for showing the motor overhang involved by embodiment, and Fig. 4 is to show the coil shown in Fig. 3
The figure of longitudinal profile, Fig. 5 is to show the figure in the horizontal section of the coil shown in Fig. 3.
Referring concurrently to Fig. 3 to Fig. 5, coil 600 can be formed from the core 610 of central part and surround the coating of core 610
Layer 620 is constituted.Coil 600 involved by embodiment can include being formed at the He of the first groove 621 of coat 620 in end 601
It is formed at the second groove 611 of core 610.
First groove 621 is implemented with the form for removing a part for coat 620.First groove 621 makes core 610 expose outside
Portion.Second groove 611 depression be formed at core 610 surface and with the first groove 621 side by side.The size of second groove 611 can be formed
Must be big slighter than the first groove 621.
In the region for forming the first groove 621, core 610 is removed exposed to outside state in coat 620.Cause
This, at the end of welding terminal (the 510 of Fig. 2) and coil 600, energization will not be applied layer 620 and hinder.As a result, in welding
When can fully realize energization in the end of terminal 510 and coil 600, thus improve the adhesion of terminal 510 and coil 600.
The side wall of reference picture 4 and Fig. 5, the side wall of the first groove 621 and the second groove 611 can be formed continuously.Also, the first groove
621 side wall can include inclined plane.Also, the side wall of the second groove 611 can include the rounding top and bottom pattern of curved surface.Now,
The width W of the side wall of two grooves 611 can be bigger than depth t.The width W of the side wall of second groove 611 is represented with the length side of coil 600
The width of the second groove 611 on the basis of.Also, the depth t of the side wall of the second groove 611 represents the radial direction along core 610
The surface from core 610 towards the bottom of the surface of on the direction at the section center of core 610, core 610 and the second groove 611
The ultimate range in portion.
This groove 611 of first groove 621 and second can form multiple in the end of core 610.Multiple first grooves 621 and
Two grooves 611 can at regular intervals be set along the length direction of core 610.In addition, as shown in figure 5, cuing open with core 610
On the basis of the C of face center, multiple grooves 611 of first groove 621 and second can be with balanced configuration.
The groove 611 of this first groove 621 and second for being formed at the end of core 610 can be by coil processing unit (plant) come real
It is existing.
Fig. 6 is the figure for showing the coil processing unit (plant) involved by embodiment.
Reference picture 6, coil processing unit (plant) 1 involved by embodiment can include the first pressurization part 10, the second pressurization part 20,
First drive division 30, housing 40, the second drive division 50 and the 3rd drive division 60.
Fig. 7 is the figure for the mobile route for showing stator.
As shown in fig. 7, coil processing unit (plant) 1 can be only fitted on the mobile route of segmentation core 310 of stator.In stator
Assembling procedure in, the segmentation core 310 of wound around coil 600 is transferred to mutually assemble by transferred unit 2.Coil processing unit (plant)
1 can be only fitted on the transfer path for the segmentation core 310 transferred by transferred unit 2.
Fig. 8 is to represent that scratch processes the figure of projection.
At least any one can include realizing first in reference picture 6 and Fig. 8, the first pressurization part 10 and the second pressurization part 20
The scratch processing projection 13,23 of the groove 611 of groove 621 and second.First pressurization part 10 and the second pressurization part 20 can be across coils 60
End and be opposed to configuration.This pressurization part 20 of first pressurization part 10 and second can include main body 11,21 and pressurization respectively
Block 12,22.
Main body 11,21 can link with the first drive division 30.Pressurizing block 12,22 can be in the way of it can load and unload and main body
11st, 21 combine.Also, process projection 13,23 in the scratch that pressurizing block 12,22 can be provided with prominent form.Shown in figure
The scratch processing projection 13,23 of zigzag fashion, but embodiment is not limited to this, can be prominent with the scratch processing of various shapes
13rd, 23 realize.
Can possess the multiple pressurizing blocks 12,22 for the scratch processing projection 12,23 for being respectively arranged with mutually different form, respectively
Pressurizing block 12,22 can be configured to be formed at main body 11,21 in the way of it can load and unload, and pressurizing block can be replaced as needed
12、22。
First drive division 30, which is played, makes the main body 11,21 of the first pressurization part 10 or the second pressurization part 20 in the first direction
(the mobile effect for example, horizontal direction (Fig. 6 x-axis direction) is retreated.First drive division 30 the end of coil 600 be located at pair
In the state of between the pressurizing block 12,22 put, pressurizing block 12,22 is set to be moved in the way of aggregation.If pressurizing block 12,22 is moved,
Then scratch processing projection 13, the end of 23 pairs of coils 600 are pressurizeed, so as to realize the first groove 621 and the second groove 611.
The profile of the formation coil of housing 40 processing unit (plant) 1, can internally include the first drive division 30.Also, housing 40
Guide portion 41 can be included.Guide portion 41 supports the main body 11,21 of the first pressurization part 10 or the second pressurization part 20 to make it
It can slide, and guide the mobile mode of successfully retreating of pressurizing block 12,22.
Second drive division 50, which is played, to be made housing 40 (such as vertical direction (Fig. 6 y-axis direction)) is mobile in a second direction
Effect.Second drive division 30 can adjust pressurizing block 12,22 according to the size of segmentation core 310 or the position of coil 600
Vertical direction position.
3rd drive division 60, which is played, makes the second drive division 50 (such as horizontal direction (Fig. 6 x-axis direction)) in the first direction
Mobile effect.3rd drive division 60 can become according to the change of the mobile route of segmentation core 310 or the position of coil 600
More adjust the horizontal direction position of pressurizing block 12,22.
Fig. 9 is the figure for the forming process for showing the first groove and the second groove.
Reference picture 9, in the state of being located in the end of coil 600 between opposed pressurizing block 12,22, if pressurizing block 12,
22 are got together, then scratch processing projection 12, the surface of 23 pairs of coils 600 are pressurizeed.If scratch processing projection 12,23 pairs of lines
The surface of circle 600 is pressurizeed, then forms the first groove 621, and continuously coil 600 therewith in the coat 610 of coil 600
Core 620 hollowly dug up and form the second groove 611.
More than, had in embodiment with reference to accompanying drawing to motor with coil, motor and motor with coil processing unit (plant)
The explanation of body.
Described above is only the technical concept for having illustrated the present invention, is held in the technical field belonging to the present invention
The people of Conventional wisdom can carry out a variety of modifications, change and replace in the range of the essential characteristics of the present invention are not departed from.Therefore,
Embodiment and accompanying drawing disclosed in the present invention are not configured to limit the technical concept of the present invention but in order to illustrate, the present invention
The scope of technical concept do not limited by this embodiment and accompanying drawing.Protection scope of the present invention should be by the right enclosed
Claim is explained, the interest field included in the present invention should be interpreted with its all technical concept in equivalency range
It is interior.
Description of reference numerals
1：Coil processing unit (plant)；2：Transferred unit；10：First pressurization part；20：Second pressurization part；30：First drive division；40：
Housing；50：Second drive division；60：3rd drive division；100：Rotor；200：Rotary shaft；300：Stator；400：Position testing unit
Member；500：Busbar；510：Terminal；600：Coil；601：End；610：Core；611：Second groove；620：Coat；621：
First groove.
Claims (11)
1. a kind of motor coil, the motor includes core with coil and surrounds the coat of the core,
Characterized in that,
The overhang includes the first groove and the second groove,
First groove is formed at the coat and makes the core exposed to outside,
The surface of core described in the second groove canyon topography Cheng Yu and with first groove side by side.
2. motor coil according to claim 1, it is characterised in that
The side wall of the side wall of first groove and second groove is continuous.
3. motor coil according to claim 2, it is characterised in that
The side wall of first groove includes inclined plane,
The side wall of second groove includes curved surface.
4. motor coil according to claim 3, it is characterised in that
The width of second groove is bigger than depth.
5. motor coil according to claim 1, it is characterised in that
The size of second groove is formed must be big slighter than first groove.
6. motor coil according to claim 1, it is characterised in that
First groove and second groove be formed with it is multiple,
Multiple first grooves and the second groove balanced configuration on the basis of the section center of the core.
7. a kind of motor, it is characterised in that
Including：
Rotary shaft；
Rotor, the rotor is combined with the rotary shaft, and is configured at the outside of the rotary shaft；And
Stator, the stator arrangement is wound with coil in the outside of the rotor,
The coil includes core and surrounds the coat of the core,
The overhang includes the first groove and the second groove,
First groove is formed at the coat and makes the core exposed to outside,
The surface of core described in the second groove canyon topography Cheng Yu and with first groove side by side.
8. a kind of motor coil processing unit (plant), configure for being wound with the path of stator movement of motor coil, it is described
Motor includes core with coil and surrounds the coat of the core,
Characterized in that,
Including the first pressurization part and the second pressurization part, first pressurization part and the second pressurization part are across the overhang pair
Configure with putting, and both first pressurization part and the second pressurization part at least any one to include scratch processing prominent
Rise, scratch processing projection makes the core exposed to outside the with prominent prominent form in coat formation
One groove, and the surface of the core is processed in the way of being recessed and the second groove with first groove side by side is formed.
9. motor according to claim 8 coil processing unit (plant), it is characterised in that
Including the first drive division, first drive division links respectively with first pressurization part and second pressurization part, and
First pressurization part and second pressurization part is set to retreat in the first direction movement.
10. motor according to claim 9 coil processing unit (plant), it is characterised in that
First pressurization part and second pressurization part include pressurizing block and main body respectively, and the pressurizing block is formed with described scrape
Trace processes projection, and the main body links with the pressurizing block and first drive division.
11. motor according to claim 10 coil processing unit (plant), it is characterised in that
Also include housing, the housing includes first drive division and including guide portion, and the guide portion adds described first
Splenium and second pressurization part support to slide.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2016-0049335 | 2016-04-22 | ||
| KR1020160049335A KR102566474B1 (en) | 2016-04-22 | 2016-04-22 | Coil for motor and Apparatus for processing coil for motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107306060A true CN107306060A (en) | 2017-10-31 |
| CN107306060B CN107306060B (en) | 2021-05-14 |
Family
ID=60150380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710264752.2A Active CN107306060B (en) | 2016-04-22 | 2017-04-21 | Coil for motor, and coil processing device for motor |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR102566474B1 (en) |
| CN (1) | CN107306060B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4295071A (en) * | 1978-04-06 | 1981-10-13 | Bbc Brown, Boveri & Company Limited | Lattice bar for electrical machinery |
| CN203135624U (en) * | 2013-03-29 | 2013-08-14 | 深圳市大疆创新科技有限公司 | Motor |
| CN103650299A (en) * | 2011-07-14 | 2014-03-19 | 日立汽车系统株式会社 | Rotating electric machine and method for manufacturing stator coil of rotating electric machine |
| CN104124805A (en) * | 2013-04-25 | 2014-10-29 | 日立金属株式会社 | Electrical collecting and distributing ring |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1175351A (en) * | 1997-06-24 | 1999-03-16 | Toshiba Corp | Method and apparatus for forming coil |
| JP2002135936A (en) * | 2000-10-27 | 2002-05-10 | Denso Corp | Stripping method for resin film |
-
2016
- 2016-04-22 KR KR1020160049335A patent/KR102566474B1/en active IP Right Grant
-
2017
- 2017-04-21 CN CN201710264752.2A patent/CN107306060B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4295071A (en) * | 1978-04-06 | 1981-10-13 | Bbc Brown, Boveri & Company Limited | Lattice bar for electrical machinery |
| CN103650299A (en) * | 2011-07-14 | 2014-03-19 | 日立汽车系统株式会社 | Rotating electric machine and method for manufacturing stator coil of rotating electric machine |
| CN203135624U (en) * | 2013-03-29 | 2013-08-14 | 深圳市大疆创新科技有限公司 | Motor |
| CN104124805A (en) * | 2013-04-25 | 2014-10-29 | 日立金属株式会社 | Electrical collecting and distributing ring |
Also Published As
| Publication number | Publication date |
|---|---|
| KR102566474B1 (en) | 2023-08-11 |
| KR20170120882A (en) | 2017-11-01 |
| CN107306060B (en) | 2021-05-14 |
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