JP2005237139A - Manufacturing method of coil for coreless motor, and coreless motor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a manufacturing method of a coil for coreless motor, and a coreless motor in which the shape of a winding collapsed into a hexagonal plane can be sustained while preventing the generation of a rejectable product efficiently. <P>SOLUTION: The manufacturing method of the coreless motor comprises a step for forming a tubular hexagonal winding by winding three self-melting wires sequentially into a hexagonal shape of predetermined dimensions to form three phases, a step for inserting a double-sided fixing tape for preventing deformation into the tubular hexagonal winding formed in the winding forming step, a step for collapsing the winding flatly to have a hexagonal plane while overlapping the tape surface following to the tape inserting step, and a step for machining the winding circularly following to the plane machining step and sustaining the circular state by hardening the double-sided fixing tape for preventing deformation. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a method of manufacturing a coreless motor coil and a coreless motor using the coreless motor coil manufactured by the method of manufacturing a coreless motor coil.

  In the conventional coil for a coreless motor, three self-bonding wires are sequentially wound around a hexagonal shape having a predetermined width so as to form a three-phase, a hexagonal cylindrical winding is formed, and then the hexagonal cylindrical winding Attaching a misalignment prevention tape to one opposing outer surface, overlapping the misregistration prevention tape surface, flattening the winding so that it becomes a hexagonal plane, and then temporarily fixing with a solvent, misalignment After the prevention tape is removed, it is processed into a circular shape and is self-fixed and manufactured.

However, there is a drawback that it is difficult to maintain the shape in a state in which the winding is flattened so that it becomes a hexagonal flat surface and then temporarily fixed and processed into a circular shape, and defective products are likely to occur.
JP 2002-291187 A 6-506100

  In view of the above-described conventional drawbacks, the present invention can maintain the shape after flattening so that the winding becomes a hexagonal plane, and can efficiently prevent the occurrence of defective products. An object of the present invention is to provide a manufacturing method of a coil and a coreless motor.

The above and other objects and novel features of the present invention will become more fully apparent when the following description is read in conjunction with the accompanying drawings.
However, the drawings are for explanation only and do not limit the technical scope of the present invention.

  In order to achieve the above object, the present invention sequentially winds three self-bonding wires into a hexagonal shape having a predetermined width so as to form three phases, and forms a hexagonal cylindrical winding, A tape installation step of inserting a deformation-preventing double-sided fixing tape into the hexagonal cylindrical winding formed in this winding formation step, and the tape surface overlaps after this tape installation step, and the winding is a hexagonal flat surface The coreless motor coil manufacturing method is composed of a flat processing step for flattening and a fixing step for curing the double-sided fixing tape for preventing deformation and maintaining the circular state after the flat processing step to form a circular shape. doing.

  In the present invention, three self-bonding wires are sequentially wound around a hexagonal shape having a predetermined width so as to form three phases, and a winding forming step for forming a hexagonal cylindrical winding, and this winding forming step is used. A tape installation step of sticking a misalignment prevention tape to one opposing outer surface of the hexagonal cylindrical winding, and inserting a deformation preventing double-sided fixing tape therein so as to be parallel to the misalignment prevention tape; After this tape installation process, the surface of the tape overlaps and the flattening process crushes flat so that the winding becomes a hexagonal plane, the temporary fixing process of temporarily fixing using a solvent after the flattening process, and the temporary fixing process A coreless motor is configured using a coreless motor coil manufactured by a fixing step in which the misalignment prevention tape is later peeled off, processed into a circular shape and fixed by self-fusion.

  As is clear from the above description, the present invention has the following effects.

(1) A tape installation process in which a deformation-preventing double-sided fixing tape is inserted inside a hexagonal cylindrical winding, and the tape surface overlaps after this tape installation process, and the winding is flattened so that the winding forms a hexagonal plane. Therefore, when the winding is flattened so as to form a hexagonal plane, the inner surface of the winding can be bonded and fixed with a double-sided fixing tape for preventing deformation.
Therefore, the shape can be maintained, and deformation in a subsequent process can be efficiently prevented to prevent generation of defective products.

(2) According to the above (1), the strength of the winding processed into a flat shape can be enhanced by the deformation preventing double-sided tape by the deformation preventing double-sided fixing tape housed inside.

(3) According to the above (1), each step after the planar processing step can be easily and efficiently performed.

(4) In claim 2, the same effects as in the above (1) to (3) can be obtained.

(5) Claims 3, 4, and 5 can provide the same effects as the above (1) to (3), and can be attached to a substrate or the like with sufficient strength.

  Hereinafter, the present invention will be described in detail from the best mode for carrying out the present invention shown in the drawings.

  In the best mode for carrying out the present invention shown in FIG. 1 to FIG. 9, as shown in FIG. 2, the three self-bonding wires 2, 2A and 2B have three phases. A winding forming step of sequentially winding a hexagonal shape having a predetermined width dimension by using a winding frame 3 to form a hexagonal cylindrical winding 4. This winding forming step 1 is performed by a conventionally performed method. Do.

  5 is a tape installation process. As shown in FIG. 3, the tape installation process 5 is made of paper adhesive tape or the like on one opposing outer surface of the hexagonal cylindrical winding 4 formed in the winding formation process 1. Attaching the misalignment prevention tapes 6 and 6 and taking out the winding 4 from the winding frame 3 is parallel to the misalignment prevention tapes 6 and 6 so that the inside of the winding 4 is not damaged by epoxy or a known heat. This is performed by inserting a double-sided adhesive tape 7 for preventing deformation such as double-sided adhesive of a thermosetting resin such as a curable adhesive or an adhesive tape.

As shown in FIG. 4 after the tape installation step 5, 8 is a plane processing step for processing into a flat surface. In this plane processing step 8, the tapes 6, 7, and 6 surfaces of the winding 4 overlap and the winding 4 is hexagonal. Crush it flat so that it becomes the plane of the shape.
At this time, it is carried out by using a Heisei type machine 11 which is put into the frame 9 and pressed by the pressing piece 10 as in the conventional case.

  Reference numeral 12 denotes a temporary fixing step in which a solvent 13 such as alcohol or ethanol is applied with a brush 14 or the like as shown in FIG.

  Reference numeral 15 denotes a fixing step in which the coreless motor coil 16 is processed after the temporary fixing step 12, and the fixing step 15 is affixed to the outer periphery of the winding 4A fixed to a plane as shown in FIG. The position-shift prevention tapes 6 and 6 are peeled off and processed into a circular shape to cure the deformation-preventing double-sided fixing tape to maintain a circular state. The wound wire 4 </ b> A that has been processed into a shape is wound so that the shape of the wound wire 4 </ b> A does not collapse, and is inserted into the molding frame 18 and fixed. After that, the whole molding frame 18 is put in the furnace 19 and cured by heating at 160 to 170 ° C. for 60 to 70 minutes, for example.

  In the embodiment of the present invention, the use of the thermosetting adhesive for the deformation-preventing double-sided fixing tape 7 has been described. However, the present invention is not limited to this, and the deformation impregnated with an ultraviolet curable adhesive is prevented. The fixing step 15 may be performed by irradiating with ultraviolet rays.

The coreless motor coil 16 manufactured by the above method is used for the coreless motor 20 as shown in FIGS.
The coreless motor 20 includes a base plate 21, a shaft 22 fixed to the base plate 21 so as to protrude upward, and a sleeve disposed on the outer periphery of the shaft 22 via a gas space 23 constituting a gas dynamic pressure bearing. 24, a rotor 25 on which a permanent magnet attached to the outer peripheral portion of the sleeve 24 is disposed, and a fixed state to the substrate 21 with an adhesive 26 such as an epoxy adhesive so as to be positioned on the outer peripheral portion of the rotor 25 The coreless motor coil 16 attached in Step 1, the back yoke 27 provided so as to be positioned on the outer periphery of the coreless motor coil 16, the back yoke 27, the sleeve 24, and the rotor 25 in a fixed state. A hub 28 that supports and covers the upper portion of the shaft 22 and is attached to the hub 28 or the back yoke 27. A collar wheel 29 projecting outward in a direction perpendicular to the axial direction of the shaft 22, a ring-shaped thrust magnet 31 fixed to a concave portion 30 on the upper portion of the hub 28 covering the shaft 22, and the thrust magnet 31 The thrust magnet 32 is fixed to the upper portion of the shaft 22 so as to function as a vertical stopper that is attracted to the inner side.

In the coreless motor 20 having the above-described configuration, the coreless motor coil 16 has the winding 4A fixed with the deformation-preventing double-sided fixing tape 7, so that a circular strength can be obtained and the coil can be easily attached to the substrate 21. Since the winding shape does not collapse, a preset performance can be reliably obtained.
[Different forms for carrying out the invention]

  Next, different modes for carrying out the present invention shown in FIGS. 10 to 15 will be described. In the description of these different modes for carrying out the present invention, the same components as those in the best mode for carrying out the present invention are designated by the same reference numerals and redundant description is omitted. To do.

  The second embodiment for carrying out the present invention shown in FIG. 10 to FIG. 12 is mainly different from the first embodiment for carrying out the present invention in that an adhesive or a pressure-sensitive adhesive is applied or contained. Manufactured using such a coreless motor coil manufacturing method in that the coreless motor coil manufacturing method is performed by performing the tape installation process 5A using the eroded glass cloth as the double-sided fixing tape 7A for preventing deformation. The coreless motor coil 16 </ b> A thus obtained has the same effects as those of the best first embodiment for carrying out the present invention.

  The third embodiment for carrying out the present invention shown in FIGS. 13 to 15 is mainly different from the best first embodiment for carrying out the present invention in that the hexagonal cylindrical winding 4 is flattened. The tape installation step of attaching the displacement prevention tape 6 to the outer surface of the part located on the upper surface during the crushing operation and inserting the deformation preventing double-sided fixing tape 7 on the inner surface so as to be parallel to the displacement displacement tape 6 The coreless motor coil 16 manufactured using such a coreless motor coil manufacturing method is the best for carrying out the present invention in that the coreless motor coil manufacturing method is performed by performing 5B. The same effect as the first embodiment can be obtained.

  The present invention is used in the manufacture of coils for coreless motors, the industry for manufacturing coreless motors, and the industries in which these are installed or used.

FIG. 3 is a process diagram of the best first embodiment for carrying out the present invention. Explanatory drawing of the winding formation process of the best 1st form for implementing this invention. Explanatory drawing of the tape installation process of the best 1st form for implementing this invention. Explanatory drawing of the plane processing process of the best 1st form for implementing this invention. Explanatory drawing of the temporary fixing process of the best 1st form for implementing this invention. Explanatory drawing of the fixing process of the best 1st form for implementing this invention. Explanatory drawing of the coil for coreless motors. The top view of a coreless motor. Sectional drawing which follows the 9-9 line of FIG. Process drawing of the 2nd form for implementing this invention. Explanatory drawing of the tape installation process of the 2nd form for implementing this invention. Explanatory drawing of the coil for coreless motors. Process drawing of the 3rd form for implementing this invention. Explanatory drawing of the tape installation process of the 3rd form for implementing this invention. Explanatory drawing of the coil for coreless motors.

Explanation of symbols

1: winding forming step, 2, 2A, 2B: self-bonding wire,
3: reel, 4, 4A: winding,
5, 5A, 5B: tape installation process,
6: Misalignment prevention tape,
7, 7A, 7B: Double-sided adhesive tape for preventing deformation,
8: Planar processing step, 9: Frame,
10: Pressing pressure piece, 11: Heisei type machine,
12: Temporary fixing process, 13: Solvent,
14: Brush, 15: Fixing process,
16, 16A: Coil for coreless motor,
17: Core, 18: Molding frame,
19: furnace, 20: coreless motor,
21: substrate, 22: shaft,
23: Gas space, 24: Sleeve,
25: Rotor, 26: Adhesive,
27: Back yoke, 28: Hub,
29: Color wheel, 30: Recess,
31: Thrust magnet, 32: Thrust magnet.

Claims (5)

A winding forming step of sequentially winding three self-bonding wires into a hexagonal shape having a predetermined width so as to form three phases, and forming a hexagonal cylindrical winding, and a hexagonal cylinder formed in this winding forming step A tape installation step of inserting a deformation-preventing double-sided fixing tape into the inside of the coiled winding, and a flat processing step of crushing the tape flat so that the tape surface becomes a hexagonal plane after the tape installation step, A method of manufacturing a coil for a coreless motor, comprising: a fixing step of forming a circular shape after the planar processing step to cure the double-sided fixing tape for preventing deformation and maintaining a circular state. A winding forming step of winding three self-bonding wires sequentially into a hexagonal shape of a predetermined width so as to form a three-phase, forming a hexagonal cylindrical winding, and a hexagonal cylinder formed in this winding forming step A tape installation process in which a misalignment prevention tape is attached to one opposing outer surface of a coiled winding, and a deformation preventing double-sided fixing tape is inserted inside in parallel with the misalignment prevention tape, and the tape installation After the process, the tape surface overlaps and flattening process to flatten so that the winding becomes a hexagonal plane,
A temporary fixing step of temporarily fixing using a solvent after the flat surface processing step, and removing the misalignment prevention tape after the temporary fixing step, processing into a circular shape, curing the deformation-preventing double-sided fixing tape, and maintaining a circular state A method for manufacturing a coil for a coreless motor, comprising a fixing step. A winding forming step of sequentially winding three self-bonding wires into a hexagonal shape having a predetermined width so as to form three phases, and forming a hexagonal cylindrical winding, and a hexagonal cylinder formed in this winding forming step A tape installation step of inserting a deformation-preventing double-sided fixing tape such as a thermosetting double-sided adhesive tape that can prevent the strength and heat-resistant deformation so as to be parallel to one opposing surface of the coiled winding, After the tape installation process, the tape surface overlaps and flattening process is crushed flat so that the winding becomes a hexagonal flat surface, and after this flattening process, it is processed into a circular shape and fixed by self-fusing and thermosetting, The manufacturing method of the coil for coreless motors characterized by including these. A winding forming step of winding three self-bonding wires sequentially into a hexagonal shape of a predetermined width so as to form a three-phase, forming a hexagonal cylindrical winding, and a hexagonal cylinder formed in this winding forming step A tape installation process in which a misalignment prevention tape is attached to one opposing outer surface of a coiled winding, and a deformation preventing double-sided fixing tape is inserted inside in parallel with the misalignment prevention tape, and the tape installation After the process, the tape surface overlaps and flattening process to flatten so that the winding becomes a hexagonal plane,
For a coreless motor manufactured by a temporary fixing step of temporarily fixing using a solvent after the planar processing step, and a fixing step of removing the misalignment prevention tape after the temporary fixing step, processing into a circular shape and fixing by self-fusion. Coreless motor using coils. A winding forming step of winding three self-bonding wires sequentially into a hexagonal shape of a predetermined width so as to form a three-phase, forming a hexagonal cylindrical winding, and a hexagonal cylinder formed in this winding forming step Tape installation process for inserting a deformation-preventing double-sided fixing tape such as a thermosetting double-sided adhesive tape that can prevent strength and heat-resistant deformation so as to be parallel to one opposing surface of the coiled winding, and this tape After the installation process, the tape surface overlaps and flattening process to flatten the winding so that it becomes a hexagonal flat surface, and after this flattening process, the circular anti-deformation double-sided fixing tape is cured by circular processing A coreless motor using a coil for a coreless motor manufactured by a fixing process for maintaining the temperature.

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