CN106847496B - Magnetic core coiling auxiliary device - Google Patents
Magnetic core coiling auxiliary device Download PDFInfo
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- CN106847496B CN106847496B CN201611252060.8A CN201611252060A CN106847496B CN 106847496 B CN106847496 B CN 106847496B CN 201611252060 A CN201611252060 A CN 201611252060A CN 106847496 B CN106847496 B CN 106847496B
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- magnetic core
- conducting wire
- winding part
- coiling
- axial direction
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- 238000004804 winding Methods 0.000 claims abstract description 45
- 238000005452 bending Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- 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
- H01F41/04—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 for manufacturing coils
- H01F41/06—Coil winding
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
The present invention relates to magnetic core coiling auxiliary devices.The magnetic core coiling auxiliary device includes: frame；Magnetic core fixation member is mounted on the lateral surface top of the frame, for fixing magnetic core；With, assist winding part, be mounted in the short transverse of the frame, moved along the axial direction of magnetic core；Wherein, auxiliary winding part draws the conducting wire being wound on magnetic core to the other end in the axial direction from the one end of the magnetic core in the axial direction when moving along the axial direction of magnetic core.Magnetic core coiling auxiliary device according to the present invention can save human cost to magnetic core coiling by auxiliary, and convenient for operation.
Description
Technical field
The present invention generally relates to accessory machinery field, relate in particular to for magnetic core coiling magnetic core around
Line auxiliary device.
Background technique
Magnetic core refers to a kind of sintering magnetic metal oxide being made of various iron oxide mixtures.Amorphous, nanocrystalline magnetic
Core is in the coil and transformer of various electronic equipments.
For example, being usually common mode choke in the magnetic core of the power supply line of electronic equipment or signal wire one or both ends.Altogether
Mould choke coil can form biggish impedance to common-mode interference current, and not influence that (working signal is differential mode on difference mode signal
Signal), therefore do not have to consider distorted signals problem using simple.And common mode choke does not need to be grounded, and can directly add
Onto cable.
Whole beam cable is just constituted a common mode choke across amorphous, a nanocrystalline magnet core as needed can also
With by cable on magnetic core around several circles.The number of turns is more, better to the lower interference suppressioning effect of frequency, and higher to frequency
Noise suppressed effect is weaker.In practical projects, the number of turns of magnetic core is adjusted according to the frequency feature of interference electric current.Usually work as
When the frequency band of interference signal is wider, two magnetic cores can be covered on cable, each magnetic core can press down simultaneously in this way around different the number of turns
High-frequency Interference and low-frequency disturbance processed.
The magnetic core coil manufactured in this way has the characteristic of closed magnetic path, and leakage field is small, and can be applied to circuit filtering, storage
Energy, radio frequency antijamming and Conduction Interference etc..It is generally used in the electronic equipments such as computer, mobile phone, sound equipment, digital camera.
Thus, since the coil turn on magnetic core needs specifically to be arranged according to actual demand, the requirement for magnetic core coiling
Also it correspondingly improves.Therefore, it is necessary to a kind of improved magnetic core coiling auxiliary devices.
Summary of the invention
It is an object of the invention to be directed to above-mentioned defect in the prior art and deficiency, provide can assist on magnetic core around
The magnetic core coiling auxiliary device of line.
According to an aspect of the present invention, a kind of magnetic core coiling auxiliary device is provided, comprising: frame；Magnetic core fixation member,
It is mounted on the lateral surface top of the frame, for fixing magnetic core；With, assist winding part, be mounted on the height of the frame
It spends on direction, is moved along the axial direction of magnetic core；Wherein, assist winding part when moving along the axial direction of magnetic core,
The conducting wire being wound on magnetic core is drawn from the one end of the magnetic core in the axial direction to the other end in the axial direction.
In above-mentioned magnetic core coiling auxiliary device, the auxiliary winding part has conducting wire hitch structure, and the conducting wire is led
Guiding structure is used to conducting wire being fixed on the conducting wire hitch structure, so that conducting wire is as the auxiliary winding part is along magnetic
The movement of the axial direction of core is drawn from the one end of the magnetic core in the axial direction to the other end.
In above-mentioned magnetic core coiling auxiliary device, the magnetic core fixation member include shape be circular two or two with
Upper magnetic core fixation member.
In above-mentioned magnetic core coiling auxiliary device, the magnetic core fixation member can be moved along the radial direction of the magnetic core
It is dynamic, for fixing various sizes of magnetic core.
In above-mentioned magnetic core coiling auxiliary device, the magnetic core fixation member can be rotated centered on its center of circle.
Further comprise counter in above-mentioned magnetic core coiling auxiliary device, the counter be used for it is described auxiliary around
Line device end is incremented by one after the movement along the axial direction of magnetic core, by the counting of counter.
In above-mentioned magnetic core coiling auxiliary device, the magnetic core fixation member further comprises rotating driver, the rotation
Turn driver for driving the magnetic core fixation member to rotate an angle, the angle when the counting of the counter is incremented by
It is corresponding with the number of turns of the conducting wire being wound on magnetic core.
In above-mentioned magnetic core coiling auxiliary device, the auxiliary winding part has Returning driver, the return driving
Device along the axial direction of magnetic core in the auxiliary winding part from the one end of the magnetic core in the axial direction for moving to
After the other end, make the initial position before the auxiliary winding part return movement.
It further comprise counter in above-mentioned magnetic core coiling auxiliary device, the counter is used to drive in the return
When the auxiliary winding part is driven the initial position before return movement by dynamic device, the counting of counter is incremented by one.
In above-mentioned magnetic core coiling auxiliary device, the magnetic core fixation member further comprises rotating driver, the rotation
Turn driver for driving the magnetic core fixation member to rotate an angle, the angle when the counting of the counter is incremented by
It is corresponding with the number of turns of the conducting wire being wound on magnetic core.
By magnetic core coiling auxiliary device according to the present invention, can by auxiliary to magnetic core coiling save manpower at
This, and convenient for operation.
Detailed description of the invention
Fig. 1 is the schematic diagram of magnetic core coiling auxiliary device according to an embodiment of the present invention.
Specific embodiment
It is described below for the open present invention so that those skilled in the art can be realized the present invention.It is excellent in being described below
Embodiment is selected to be only used as illustrating, it may occur to persons skilled in the art that other obvious modifications.It defines in the following description
Basic principle of the invention can be applied to other embodiments, deformation scheme, improvement project, equivalent program and do not carry on the back
Other technologies scheme from the spirit and scope of the present invention.
It is understood that term " one " is interpreted as " at least one " or " one or more ", i.e., in one embodiment,
The quantity of one element can be one, and in a further embodiment, the quantity of the element can be it is multiple, term " one " is no
It can be interpreted as the limitation to quantity.
Term used in following description and claim and word are not limited to literal meaning, but only by the present inventor
The present invention can be understood and consistently understand by being used so that.Therefore, to those skilled in the art clearly only for explanation
Purpose rather than provide this hair for the limitation purpose of the present invention as defined in appended claims and their equivalent
Bright various embodiments are described below.
Although for example the ordinal number of " first ", " second " etc. will be used to describe various assemblies, not limit those herein
Component.The term is only used for distinguishing a component and another component.For example, first assembly can be referred to as the second component, and same
Sample, the second component can also be referred to as first assembly, without departing from the introduction of inventive concept.Term as used herein " and/
Or " project listed any for including one or more associations and all combinations.
Term used herein is only used for describing the purpose of various embodiments and is not intended to limit.As used herein,
Singular is intended to also include plural form, makes an exception unless the context clearly dictates.Will further be understood that term " includes " and/or
" having " specifies depositing for the feature, number, step, operation, component, element or combinations thereof when being used in this specification
, and it is not excluded for the presence or additional of one or more of the other feature, number, step, operation, component, element or its group.
Term used herein including technical and scientific term has and the normally understood art of those skilled in the art
The identical meaning of language, only if it were not for being defined differently than the term.It should be understood that the term tool limited in usually used dictionary
Have and the consistent meaning of the meaning of term in the prior art.
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:
One side according to an embodiment of the present invention provides a kind of magnetic core coiling auxiliary device, comprising: frame；Magnetic core is solid
Determine component, the lateral surface top of the frame is mounted on, for fixing magnetic core；With, assist winding part, be mounted on the frame
In short transverse, moved along the axial direction of magnetic core；Wherein, auxiliary winding part is moved along the axial direction of magnetic core
When, the conducting wire being wound on magnetic core is drawn from the one end of the magnetic core in the axial direction to the other end in the axial direction.
In above-mentioned magnetic core coiling auxiliary device, which has conducting wire hitch structure, conducting wire traction knot
Structure is used to conducting wire being fixed on the conducting wire hitch structure, so that conducting wire is as the auxiliary winding part is along the axial direction of magnetic core
The movement in direction is drawn from the one end of the magnetic core in the axial direction to the other end.
In above-mentioned magnetic core coiling auxiliary device, the magnetic core fixation member include shape be it is circular two or more
Magnetic core fixation member.
In above-mentioned magnetic core coiling auxiliary device, which can move along the radial direction of the magnetic core, with
For fixing various sizes of magnetic core.
In above-mentioned magnetic core coiling auxiliary device, which can be rotated centered on its center of circle.
It further comprise counter in above-mentioned magnetic core coiling auxiliary device, which is used in the auxiliary winding section
Part terminates after the movement along the axial direction of magnetic core, and the counting of counter is incremented by one.
In above-mentioned magnetic core coiling auxiliary device, which further comprises rotating driver, which drives
Dynamic device is used to drive the magnetic core fixation member to rotate an angle, which is wound on magnetic with this when the counting of the counter is incremented by
The number of turns of conducting wire on core is corresponding.
In above-mentioned magnetic core coiling auxiliary device, which has Returning driver, which uses
In the auxiliary winding part along magnetic core axial direction from the one end of the magnetic core in the axial direction move to the other end it
Afterwards, make the initial position before the auxiliary winding part return movement.
It further comprise counter in above-mentioned magnetic core coiling auxiliary device, which is used in the Returning driver
When the auxiliary winding part is driven the initial position before return movement, the counting of counter is incremented by one.
In above-mentioned magnetic core coiling auxiliary device, which further comprises rotating driver, which drives
Dynamic device is used to drive the magnetic core fixation member to rotate an angle, which is wound on magnetic with this when the counting of the counter is incremented by
The number of turns of conducting wire on core is corresponding.
Fig. 1 is the schematic diagram of magnetic core coiling auxiliary device according to an embodiment of the present invention.As shown in Figure 1, according to the present invention
The magnetic core coiling auxiliary device 1 of embodiment includes frame 10.The number as shown in Figure 1 of magnetic core fixation member 20 is three, installation
On the lateral surface top of frame 10, for magnetic core to be fixed.Here, the number of magnetic core fixation member 20 can also be two or four
More than a, it is only necessary to which magnetic core is fixed in guarantee, and does not hinder the winding operation of magnetic core.In addition, though in Fig. 1,
Magnetic core fixation member 20 is shown as cylindrical, which is also possible to be suitable for the other shapes that magnetic core is fixed.
Auxiliary winding part 30 is mounted in the short transverse of frame 10, and along the axial direction of magnetic core, i.e. up and down direction in Fig. 1 is transported
It is dynamic.Assist winding part 30 when moving along the axial direction of magnetic core, by the conducting wire being wound on magnetic core from magnetic core in axial side
Upward one end, upper end as shown in Figure 1 are drawn to the other end in the axial direction, lower end as shown in Figure 1.
Although being not shown in Fig. 1, in above-mentioned magnetic core coiling auxiliary device, auxiliary winding part 30 at an upper portion thereof can be with
With conducting wire hitch structure, which is used to conducting wire being fixed on the conducting wire hitch structure so that conducting wire with
Auxiliary winding part 30 drawn from the one end of the magnetic core in the axial direction to another along the movement of the axial direction of magnetic core
One end.For example, the conducting wire hitch structure can be fixture, after conducting wire is clamped, auxiliary winding part 30 on to
When lower movement, conducting wire is passed through into magnetic core also along direction from the top down, to complete auxiliary coiling movement.In addition, more excellent
Selection of land, the conducting wire hitch structure are the hook shaped component of a pointed end.In operation, it is only necessary to by lead placement in hook shaped component
Bending section, when assist winding part 30 move from the top down when, conducting wire also will along direction from the top down pass through magnetic core, from
And complete auxiliary coiling movement.Also, fixture is replaced using hook shaped component, it can be in order to conducting wire be fixed on conducting wire hitch structure
On operation, to improve the winding efficiency of magnetic core coiling auxiliary device.
As shown in Figure 1, may further include sliding rail 40 in magnetic core coiling auxiliary device 1, which makes magnetic core
Fixation member 20 can be moved along the radial direction of magnetic core, for fixing various sizes of magnetic core.In fig. 1 it is illustrated that each
Magnetic core fixation member 20 corresponds to a sliding rail 40, still, it will be understood by those skilled in the art that the number of sliding rail 40 is not yet
It is limited to three.For example, when as shown in Figure 1, the number of magnetic core fixation member is three, it can also be only for the magnetic core of the leftmost side
Sliding rail is arranged in fixation member, to change the position of the magnetic core fixation member.It is fixed in this way, can also play and change three magnetic cores
Space between component, to accommodate the effect of various sizes of magnetic core.
In practical applications, be to carry out coiling along the circumferencial direction of magnetic core, and in winding process, around conducting wire
The number of turns be magnetic core an important parameter.
Thus, it further comprise for convenient for along magnetic in magnetic core coiling auxiliary device according to an embodiment of the present invention
The circumferencial direction coiling of core and to around line the number of turns count device.
Specifically, magnetic core fixation member 20 can be rotated centered on its center of circle in above-mentioned magnetic core coiling auxiliary device.
It also, further comprise counter in above-mentioned magnetic core coiling auxiliary device, which is used in the auxiliary winding part knot
Beam is incremented by one after the movement along the axial direction of magnetic core, by the counting of counter.In this way, when completing on magnetic core around a circle
After conducting wire, magnetic core coiling auxiliary device according to an embodiment of the present invention can drive magnetic core fixation member 20 clockwise or inverse
A fixed angle is rotated, hour hands so as to next on magnetic core further around a circle conducting wire.Here, those skilled in the art can manage
Solution, the angle that magnetic core fixation member 20 rotates is determined according to the actual angle that coiling needs on magnetic core, and the actual angle
It is determined again by the total number of turns of the coiling on magnetic core.
In the above-described example, counter according to the rotation of magnetic core fixation member 20 come incremental count, i.e., by magnetic core fixed part
The driving source that the rotation of part 20 is incremented by as counter.And in another example, it can be using counter incremental count as magnetic core
The driving source of the rotation of fixation member 20.It is, in above-mentioned magnetic core coiling auxiliary device, the magnetic core fixation member 20 into one
Step includes rotating driver, which is used to drive the magnetic core fixation member 20 when the counting of the counter is incremented by
An angle is rotated, the number of turns which is wound on the conducting wire on magnetic core with this is corresponding.
At this moment, since the rotation of magnetic core fixation member 20 is as counter incremental count as a result, it is desirable to other side
Formula determines whether counter carrying out incremental count.As described above, when auxiliary winding part is moved from the upper end in magnetic core axial direction
When moving to lower end, by conducting wire along magnetic core axially across magnetic core, to complete the auxiliary coiling of a circle conducting wire.But when connecing down
Come when continuing to magnetic core coiling, it is still necessary to assist winding part to return to the initial position of upper end, to continue next circle conducting wire
Coiling.
Thus, in above-mentioned magnetic core coiling auxiliary device, which has Returning driver, return driving
Device is used to move to along the axial direction of magnetic core from the one end of the magnetic core in the axial direction in the auxiliary winding part another
After end, make the initial position before the auxiliary winding part return movement.
It also, further comprise counter in above-mentioned magnetic core coiling auxiliary device, which is used to drive in the return
When the auxiliary winding part is driven the initial position before return movement by dynamic device, the counting of counter is incremented by one.
That is, instead of the rotation by magnetic core fixation member 20 come actuation counter incremental count, in another example,
It can be by Returning driver actuation counter incremental count.
In addition, it will be understood by those skilled in the art that being led in magnetic core coiling auxiliary device according to an embodiment of the present invention
It is conceived to the auxiliary operation that conducting wire is upward through to this stage of magnetic core in the axis of magnetic core.Because in the coiling of entire magnetic core
Cheng Zhong, since the internal diameter of magnetic core is relatively small, thus the winding operation in this stage is the most cumbersome.And for other stages
Winding operation, then due to being carried out in the space of the opposing open except magnetic core, no matter or by manually carrying out or by it
Its mechanical equipment auxiliary carries out, and operating process compares and is easier to.
In addition, magnetic core applied by magnetic core coiling auxiliary device according to an embodiment of the present invention, it is therefore preferable to amorphous, nanometer
Brilliant magnetic core, certainly, however it is not limited to this, it is also possible to other kinds of magnetic core.
It, can be by assisting saving people to magnetic core coiling by magnetic core coiling auxiliary device according to an embodiment of the present invention
Power cost, and convenient for operation.
Certainly, the present invention can also have other various embodiments, without departing substantially from spirit and its essence of the invention,
Those skilled in the art make various corresponding changes and modifications in accordance with the present invention, but these it is corresponding change and
Deformation all should fall within the scope of protection of the appended claims of the present invention.
Claims (8)
1. a kind of magnetic core coiling auxiliary device, comprising:
Frame；
Magnetic core fixation member is mounted on the lateral surface top of the frame, for fixing magnetic core；
Winding part is assisted, is mounted in the short transverse of the frame, is moved along the axial direction of magnetic core,
Sliding rail, so that the magnetic core fixation member can be moved along the radial direction of the magnetic core；
Wherein, auxiliary winding part along the axial direction of magnetic core when moving, by the conducting wire being wound on magnetic core from the magnetic core
It draws to the other end in the axial direction one end in the axial direction；
The auxiliary winding part has conducting wire hitch structure, and the conducting wire hitch structure is used to conducting wire being fixed on the conducting wire
On hitch structure so that the conducting wire with it is described auxiliary winding part along the axial direction of the magnetic core movement by from
It draws to the other end one end of the magnetic core in the axial direction；
The magnetic core fixation member can be moved along the radial direction of the magnetic core, for fixing the various sizes of magnetic
Core；
Wherein, it is two or more circular magnetic core fixation members that the magnetic core fixation member, which includes shape,；
Wherein, the magnetic core fixation member can be rotated centered on its center of circle.
2. magnetic core coiling auxiliary device as described in claim 1, wherein the conducting wire hitch structure is fixture, is used for institute
It states after conducting wire clamps, when the auxiliary winding part moves from the top down, by the conducting wire along direction from the top down
Across the magnetic core, to complete auxiliary coiling movement.
3. magnetic core coiling auxiliary device as described in claim 1, wherein the conducting wire hitch structure is the hook of a pointed end
Shape component, for by the lead placement in the bending section of the hook shaped component, when the auxiliary winding part is transported from the top down
When dynamic, the conducting wire passes through the magnetic core along direction from the top down, to complete auxiliary coiling movement.
4. magnetic core coiling auxiliary device as described in any one of claims 1 to 3, further comprises counter,
The counter in the auxiliary winding part for terminating after the movement along the axial direction of magnetic core, by counter
Counting be incremented by one.
5. magnetic core coiling auxiliary device as claimed in claim 4, wherein the magnetic core fixation member further comprises that rotation is driven
Dynamic device,
The rotating driver is used to drive the magnetic core fixation member to rotate one jiao when the counting of the counter is incremented by
Degree, the angle are corresponding with the number of turns of the conducting wire being wound on magnetic core.
6. magnetic core coiling auxiliary device as described in any one of claims 1 to 3, wherein the auxiliary winding part, which has, to be returned
Driver is returned,
The Returning driver be used in the auxiliary winding part along the axial direction of magnetic core from the magnetic core in axial side
Upward one end moves to after the other end, makes the initial position before the auxiliary winding part return movement.
7. magnetic core coiling auxiliary device as claimed in claim 6, further comprises counter,
The counter is used for the initial bit before the auxiliary winding part is driven return movement by the Returning driver
When setting, the counting of counter is incremented by one.
8. magnetic core coiling auxiliary device as claimed in claim 7, wherein the magnetic core fixation member further comprises that rotation is driven
Dynamic device,
The rotating driver is used to drive the magnetic core fixation member to rotate one jiao when the counting of the counter is incremented by
Degree, the angle are corresponding with the number of turns of the conducting wire being wound on magnetic core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611252060.8A CN106847496B (en) | 2016-12-29 | 2016-12-29 | Magnetic core coiling auxiliary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611252060.8A CN106847496B (en) | 2016-12-29 | 2016-12-29 | Magnetic core coiling auxiliary device |
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| Publication Number | Publication Date |
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| CN106847496A CN106847496A (en) | 2017-06-13 |
| CN106847496B true CN106847496B (en) | 2019-05-21 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1444328A (en) * | 2002-03-07 | 2003-09-24 | 日特工工程株式会社 | Winding method and device |
| CN2708465Y (en) * | 2004-04-26 | 2005-07-06 | 周志强 | Auxiliary coiling device for doughnut coil |
| CN101860145A (en) * | 2010-05-13 | 2010-10-13 | 崔建伟 | Winding device and winding method of motor armature of electric motor vehicle |
| CN203522463U (en) * | 2012-10-05 | 2014-04-02 | 日本电产增成株式会社 | Coiling device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7082674B2 (en) * | 2002-02-27 | 2006-08-01 | Sumitomo Heavy Industries, Ltd. | Method for winding a single coil of a coil unit for a linear motor |
-
2016
- 2016-12-29 CN CN201611252060.8A patent/CN106847496B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1444328A (en) * | 2002-03-07 | 2003-09-24 | 日特工工程株式会社 | Winding method and device |
| CN2708465Y (en) * | 2004-04-26 | 2005-07-06 | 周志强 | Auxiliary coiling device for doughnut coil |
| CN101860145A (en) * | 2010-05-13 | 2010-10-13 | 崔建伟 | Winding device and winding method of motor armature of electric motor vehicle |
| CN203522463U (en) * | 2012-10-05 | 2014-04-02 | 日本电产增成株式会社 | Coiling device |
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| CN106847496A (en) | 2017-06-13 |
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