Wire winding device
By using movable outer and inner cores in the winding device, combined with a moving mechanism and a locking part, continuous production of coils with different shapes is achieved, improving the coil's duty cycle and winding width, and solving the problem of difficulty in producing coils with different shapes in the prior art.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NIDEC CORP(JP)
- Filing Date
- 2022-03-24
- Publication Date
- 2026-07-24
AI Technical Summary
Existing technology makes it difficult to continuously manufacture two coils of different shapes.
The inner and outer coils are mounted on a rotating body. The outer coil can move along the central axis. Combined with the moving mechanism and the locking part, the continuous winding of the inner and outer coils can be achieved.
It enables the continuous production of two coils with different shapes, improves the coil's duty cycle and winding width, and facilitates the removal of the coil from the winding device.
Smart Images
Figure CN115149760B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a winding device. Background Technology
[0002] Conventional winding devices are known for continuously producing two coils of different shapes by inserting them into slots in a stator core. For example, Patent Document 1 discloses a winding device in which the winding core has an inner winding core and an outer winding core surrounding the inner winding core. The inner winding core of Patent Document 1 has inner winding blocks mounted on the outer side of the rotation radius of a pair of winding posts erected on a rotating plate. The outer winding core of Patent Document 1 has outer winding blocks covering the inner winding blocks. The outer winding blocks are configured to be movable on each of the pair of winding posts.
[0003] Existing technical documents
[0004] Patent documents
[0005] Patent Document 1: Japanese Patent Application Publication No. 2018-64404 Summary of the Invention
[0006] The inventors have set out the task of continuously manufacturing two coils of different shapes using a method different from the winding device in Patent Document 1.
[0007] That is, the purpose of this invention is to provide a winding device for continuously producing two coils of different shapes.
[0008] An exemplary first aspect of the present invention provides a winding apparatus comprising: a rotating body that rotates about a central axis; an inner core mounted on the rotating body; and an outer core mounted on the rotating body relative to the central axis outside the inner core, the outer core being mounted on the rotating body in a manner movable along the central axis direction.
[0009] (Invention Effects)
[0010] This invention provides a winding device for continuously producing two coils of different shapes. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of a cross-section of the stator perpendicular to the axial direction in the embodiment.
[0012] Figure 2 This is a three-dimensional schematic diagram of the stator in the implementation method.
[0013] Figure 3 This is a schematic diagram showing the winding device of the embodiment viewed from the side.
[0014] Figure 4 This is a schematic diagram showing the winding device of the embodiment viewed from the side.
[0015] Figure 5 This is a schematic diagram showing the winding device of the embodiment viewed from the side.
[0016] Figure 6 This is a schematic diagram showing the winding device of the embodiment viewed from the side.
[0017] Figure 7 This is a schematic diagram of the winding device of the embodiment viewed from the axial upward side.
[0018] Figure 8 This is a flowchart illustrating the manufacturing method of the coil.
[0019] Figure 9 This is a schematic diagram of the interior of a portion of the stator in the embodiment, viewed from the side.
[0020] Figure 10 This is a schematic diagram of the winding device of the modified example viewed from the side. Detailed Implementation
[0021] Hereinafter, exemplary embodiments of the present invention will be described based on the accompanying drawings. Furthermore, in the following drawings, the same or equivalent parts will be labeled with the same reference numerals, and their descriptions will not be repeated.
[0022] (Winding device)
[0023] The winding device 100 of this embodiment is a device for continuously producing two coils 10 of different shapes by winding coil wire. More specifically, as... Figure 1 and Figure 2 As shown, the coil 10 is inserted into a plurality of slots 21 that extend axially through the stator core 20 of the stator 1. The coil 10 includes an annular inner winding coil (small coil) 11 and an annular outer winding coil (large coil) 12 containing the inner winding coil 11.
[0024] like Figures 3-6 As shown, the winding device 100 includes a rotating body 110, a driving device, a moving mechanism, an inner winding core 120, an outer winding core 130, and a locking part 140.
[0025] The rotating body 110 rotates about its central axis C. Figures 3-6 In the middle, the direction of the central axis C is the up and down direction.
[0026] The rotating body 110 in this embodiment includes a first rotating body 111 and a second rotating body 112. The first rotating body 111 and the second rotating body 112 are stacked. Here, the second rotating body 112 is disposed above the first rotating body 111. The first rotating body 111 and the second rotating body 112 are a rotating platform.
[0027] A drive mechanism (not shown) rotates the rotating body 110. The drive mechanism is, for example, a motor.
[0028] The inner core 120 is mounted on the rotating body 110. In this embodiment, the inner core 120 is mounted on the first rotating body 111. Here, the inner core 120 is directly connected to the first rotating body 111.
[0029] A coil wire is wound on the inner core 120. The coil wire wound on the inner core 120 forms an inner coil 11.
[0030] The outer core 130 is mounted on the rotating body 110. The outer core 130 is mounted outside the inner core 120 relative to the central axis C within the rotating body 110. In this embodiment, the outer core 130 is mounted on the second rotating body 112. Here, the outer core 130 is directly connected to the second rotating body 112.
[0031] The inner core 120 and outer core 130 are arranged at equal intervals with respect to the central axis C. The inner core 120 and outer core 130 are two rod-shaped components extending along the central axis C. However, not limited to this, either the inner core 120 or outer core 130 may be arranged at equal intervals with respect to the central axis C. Alternatively, the inner core 120 and outer core 130 may not be arranged at equal intervals with respect to the central axis C. For example, the distances of the inner core 120 and outer core 130 relative to the central axis C may be completely different.
[0032] A coil wire is wound on the outer core 130. The coil wire wound on the outer core 130 forms an outer coil 12.
[0033] The outer core 130 is movably mounted on the rotating body 110 along the central axis C. Therefore, when winding the coil wire on the inner core 120, as... Figure 3 As shown, the outer core 130 can be configured so that its position does not overlap with the central axis of the inner core 120. Furthermore, when the coil wire is wound onto the outer core 130, as... Figures 4-6 As shown, the outer core 130 can be configured to overlap with the inner core 120 in the direction of its central axis. By configuring the inner core 120 and the outer core 130 in this way, a coil wire can be wound on the inner core 120 to form an inner coil 11, and a coil wire can be wound on the outer core to form an outer coil 12 that is larger than the inner coil 11. Therefore, it is possible to continuously produce two coils 10 with different shapes.
[0034] The inner core 120 and the outer core 130 are mounted on the rotating body 110 in a manner that allows them to move in a direction intersecting the central axis C. By moving the inner core 120 and the outer core 130 in a direction intersecting the central axis C, the loop-shaped coil 10 with coil wire wound on the inner core 120 and the outer core 130 can be easily removed from the winding device 100.
[0035] In addition, the aforementioned "direction intersecting the central axis C direction" is in Figures 3-6 The center refers to the left-right direction and the direction deviating from the left-right direction. In this embodiment, the inner core 120 and the outer core 130 are positioned in a direction orthogonal to the central axis C (in... Figures 3-6 It is mounted on the rotating body 110 in a manner that allows it to move in the left-right direction. Specifically, Figure 6 The positions of the inner core 120 and outer core 130 shown are located at a ratio of Figure 5 The inner core 120 and outer core 130 are shown in a central position. The inner core 120 and outer core 130 can be moved... Figure 5 The positions of the inner core 120 and the outer core 130 shown are... Figure 6 The positions of the inner core 120 and the outer core 130 are shown.
[0036] like Figure 7 As shown, the inner core 120 and outer core 130, when viewed axially, are trapezoids comprising parallel short sides 121 and 131, long sides 122 and 132, and waists 123 and 133 connecting the short sides 121 and 131 and the long sides 122 and 132. The short sides 121 and 131 are located in the direction of the central axis C (in... Figure 7 The direction that runs through the paper) orthogonal direction (in Figure 7 The long sides 122 and 132 are located on the outer side (in the left-right direction) and on the inner side in a direction orthogonal to the central axis C. Therefore, when the coil 10 wound on the inner core 120 and the outer core 130 is inserted into the slot 21, it can be easily mounted on the blade. Furthermore, the corners 124 and 134 of the short sides 121 and 131 and the waists 123 and 133 can be positioned in contact with the blade.
[0037] The corners 124 and 134 between the short sides 121 and 131 and the waists 123 and 133 have rounded corners. This allows the coil to be wound along the rounded corners on the inner core 120 and the outer core 130. When the looped coil 10 formed in this way moves at the blade, shape irregularities are suppressed. Therefore, within the groove 21, the coil 10 can be prevented from protruding from the wedge.
[0038] In the inner core 120 and the outer core 130, the portion that contacts the coil wire preferably has a rounded corner shape. Here, the four corners 124 and 134, namely the two corners between the short sides 121 and 131 and the waists 123 and 133, and the two corners between the long sides 122 and 132 and the waists 123 and 133, have rounded corner shapes.
[0039] A moving mechanism (not shown) moves the outer core 130 axially. When winding the coil wire onto the inner core 120, the moving mechanism allows the outer core 130 to be easily moved in a manner that does not overlap with the position of the inner core 120's central axis C. Therefore, it is easy to wind the coil wire onto the inner core 120. The moving mechanism is, for example, an actuator.
[0040] The locking portion 140 is located on the same side as the wire tip N that supplies the coil wire at the end of the winding. This allows the start and end of the winding to be on the same side, thus shortening the overlap. In this embodiment, as... Figures 3-6 As shown, the locking part 140 is mounted on the rotating body 110 and locks one end of the coil wire. By arranging the locking part 140 on the rotating body 110 side, the start and end of the winding of the coil wire can be located on the same side, thus shortening the overlap line.
[0041] Furthermore, while the locking portion 140 in this embodiment is mounted on the first rotating body 111, it is not limited thereto. The locking portion 140 can also be suitably disposed in a location other than the rotating body 110.
[0042] Figures 3-6 The locking part 140 has a ring shape, but is not limited to this, and may also have a hook shape, etc.
[0043] (Coil manufacturing method)
[0044] Next, the manufacturing method of coil 10 will be described. The manufacturing method of coil 10 in this embodiment is to manufacture coil 10 by winding coil wire into a loop using the winding device 100 described above.
[0045] First, such as Figure 3 and Figure 8 As shown, the outer core 130 is moved from one side to the other along the central axis C in a manner that does not overlap with the position of the inner core 120 in the direction of the central axis C (step S1). In this step (S1), the outer core 130 is moved axially to the other side, for example, by a moving mechanism.
[0046] Next, the rotating body 110 is rotated, and a coil wire is wound from one side to the other on the inner core 120, thereby forming an inner coil 11 (step S2). In this process (S2), for example, it is carried out in the following manner.
[0047] like Figure 3 As shown, one end of the coil wire is locked in the locking part 140. Then, while the rotating body 110 is driven by the drive device, Figure 3 The wire is rotated as if by an arrow, while coil wire is supplied from the wire nozzle N to the inner core 120. The wire nozzle N moves from one side to the other along the axial direction. As a result, the inner coil 11 can be formed.
[0048] Next, as Figure 4 As shown, the outer winding core 130 is moved from one side to the other, and the outer winding core 130 is positioned outside the inner winding coil 11 (step S3). In this step (S3), for example, the outer winding core 130 is moved axially to one side by a moving mechanism. Figure 4 Move in the direction of the arrow.
[0049] Next, as Figure 5 As shown, the rotating body 110 is rotated to wind a coil wire from one side to the other on the outer winding core 130, thereby forming an outer winding coil 12 (step S4). In this step (S4), it is carried out, for example, as follows.
[0050] While the rotating body 110 is rotated by a drive device, coil wire is supplied from the wire nozzle N to the outer winding core 130. For example... Figure 5 As indicated by the arrow, the wire tip N moves in the opposite direction to the winding of the inward core 120, that is, from one side of the axial direction to the other. This allows the outer winding coil 12 to be formed. Furthermore, as... Figure 5 and Figure 6 As shown, at the end of the coil winding, the locking part 140 is located on the same side as the wire nozzle N.
[0051] By implementing the above procedures (S1~S4), such as Figure 9 As shown, a coil 10 is manufactured in which the lead wire (winding start portion 10a) of the inner winding coil 11 and the lead wire (winding end portion 10b) of the outer winding coil 12 are located radially outside the stator 1, and the overlap line 10c of the inner winding coil 11 and the outer winding coil 12 is located radially inside.
[0052] Thus, according to the winding device 100 of this embodiment, a coil 10 can be manufactured in which the contact wire 10c extends radially inward in the stator 1, and the leads of the inner winding coil 11 and the outer winding coil 12 are arranged radially outward. Therefore, a stator with a high duty cycle coil 10 can be manufactured.
[0053] Furthermore, in this embodiment, even without increasing the size of the winding device 100, the width of the inner core 120 and the outer core 130 along the central axis C direction can be ensured. Therefore, a winding device 100 with a large winding width of the coil wire can be realized.
[0054] like Figure 6 As shown, by moving the inner core 120 and the outer core 130 in a direction intersecting the central axis C, a coil 10, including an inner coil 11 and an outer coil 12 of different manufactured shapes, is disposed on the blade. Furthermore, the coil 10 disposed on the blade forms the stator 1 by being inserted into the slot 21 of the stator core 20.
[0055] (Modified Example)
[0056] like Figure 10 As shown, the winding device of this modified example differs in that it also has a clamp 150 that is opposite to the rotating body in the direction of the central axis C.
[0057] Specifically, one end of the inner core 120 and the outer core 130 along the central axis C direction ( Figure 10 The other end of the inner core 120 and the outer core 130 is mounted on the rotating body 110. The other end of the inner core 120 and the outer core 130 in the direction of the central axis C ( Figure 10 One end of the inner core 120 and the outer core 130 are mounted on the clamp 150. Therefore, both ends of the inner core 120 and the outer core 130 are supported. Thus, the deflection of the inner core 120 and the outer core 130 can be suppressed.
[0058] The inner core 120 and outer core 130 are configured to be detachable relative to the rotating body 110. Therefore, the inner core 120 and outer core 130 can be removed from the rotating body 110 while being held in place by the clamp 150. Consequently, the coil 10 wound on the inner core 120 and outer core 130 can be easily attached to the blade from the inner core 120 and outer core 130.
[0059] The other end of the inner core 120 and the outer core 130 in the direction of the central axis C ( Figure 10 One end of the inner core 120 and the outer core 130 has a protrusion or a recess. The clamp 150 has a recess or a protrusion that engages with the protrusion or recess of the inner core 120 and the outer core 130. The protrusion or recess of the inner core 120 and the outer core 130 is inserted into the recess or protrusion of the clamp, thereby the inner core 120 and the outer core 130 are firmly held by the clamp 150.
[0060] The embodiments disclosed herein should be considered illustrative in all respects and not restrictive. The scope of the invention is set forth not by the above embodiments but by the claims, and is intended to include all modifications within the meaning and scope equivalent to the claims.
[0061] (Symbol Explanation)
[0062] 1: Stator
[0063] 10: Coil
[0064] 11: Inner winding coil
[0065] 12: External winding coil
[0066] 20: Stator core
[0067] 21: Slot
[0068] 100: Winding device
[0069] 110: Rotational body
[0070] 120: Inner winding core
[0071] 121, 131: Short side
[0072] 122, 132: Long side
[0073] 123, 133: waist
[0074] 124, 134: Corner
[0075] 130: Outer core
[0076] 140: Locking part
[0077] 150: Fixture.
Claims
1. A winding device, It has multiple bodies of revolution rotating around a central axis. The plurality of rotating bodies includes: First body of revolution; as well as A second rotating body is stacked axially on top of the first rotating body. The winding device includes: The inner core is directly mounted on the first rotating body; and An outer core, which is mounted directly on the outside of the inner core relative to the central axis in the second rotating body. The outer core is mounted on the second rotating body in a manner that allows it to move along the central axis. The inner core is movable relative to the outer core in a direction intersecting the central axis.
2. The winding device as described in claim 1, wherein, It also has a drive device to rotate the rotating body.
3. The winding device as described in claim 1, wherein, It also has a moving mechanism that allows the outer core to move axially.
4. The winding device as described in claim 1, wherein, The inner core and the outer core are mounted on the rotating body in a manner that allows them to move along a direction intersecting the central axis.
5. The winding device as claimed in claim 1, wherein, It also has a locking part, which is installed on the rotating body and locks one end of the coil wire.
6. The winding device as claimed in claim 1, wherein, It also includes a clamp that is opposite to the rotating body in the direction of the central axis. One end of the inner core and the outer core along the central axis is mounted on the rotating body. The other end of the inner core and the outer core along the central axis is mounted on the clamp.
7. The winding device as claimed in claim 6, wherein, The inner core and the outer core are configured to be detachable relative to the rotating body.
8. The winding device as claimed in claim 6, wherein, The inner core and the outer core have a convex or concave portion at the other end along their central axis. The clamp has a recess or a protrusion that engages with the protrusion or concave portion of the inner core and the outer core.
9. The winding device as claimed in claim 1, wherein, The inner and outer cores are trapezoidal when viewed axially. This trapezoid includes parallel short and long sides and a leg connecting the short and long sides. The short side is located outside in a direction orthogonal to the direction of the central axis, and the long side is located inside in a direction orthogonal to the direction of the central axis.
10. The winding device as claimed in claim 9, wherein, The corner between the short side and the waist has a rounded shape.
11. A method for manufacturing a coil by winding a coil wire into a loop using the winding apparatus according to any one of claims 1 to 10, wherein, have: A process of moving the outer core from one side to the other in the direction of the central axis so that the outer core does not overlap with the position of the inner core in the direction of the central axis. The process of rotating the first rotating body and winding a coil wire from the other side to the first side on the inner winding core to form an inner winding coil. The process of moving the outer winding core from the other side to the first side, and positioning the outer winding core outside the inner winding coil; and The process of rotating the second rotating body to wind a coil wire from one side to the other side on the outer winding core, thereby forming an outer winding coil.