TWI228341B - Manufacturing method of rotor and resin magnet - Google Patents

Abstract

The present invention provides a rotor wherein adhesive placed in the gap between the bonding face of a magnet and the bonding face of a yoke can be easily made to stick out. The rotor comprises magnets 45 placed opposite to a stator; and a rotor-side yoke 42 including bonding faces 71, to which the bonded faces 72 of the magnets 45 are bonded and secured via a bonding member 70. The rotor-side yoke 42 is formed, with the gaps between the bonded faces 72 and the bonding faces 71 where the bonding member 70 is placed being tapered as going toward the one-side ends 71a of the bonding faces 71.

Description

1228341 Description of the invention: [Technical field to which the invention belongs] The present invention relates to a rotor of a rotary electric machine used in a steering gap type and a radial gap type. [Previous technology] Rotary electric machines used as driving sources for electric two-wheeled vehicles and other general electric motors. In recent years, in addition to the radial gap rotary electric machines described above, steering gap rotary electric machines have also attracted much attention. As the steering gap type rotating electric machine, for example, the steering gap type electric motor has a disc-shaped rotor side yoke having a rotating shaft supported by its bearing, and a disc-shaped steel plate laminated on the center axis direction The structure of the body < fixer side vehicles facing each other, and the facing surfaces thereof are perpendicular to the rotation axis. Furthermore, a circular (or annular) boundary magnet (magnet) is arranged on the facing surface of the rotor-side vehicle, and the facing surface on the stator side is arranged along the radiation direction of the rotation axis (circumferential direction). ) Equipped with many τ-shaped pipe joints, the facing surfaces of the magnet and the T-shaped pipe joint are perpendicular to the rotation axis, and the gap between the facing surfaces forms a plane shape perpendicular to the rotation axis. In the steering gap type motor constructed as described above, the magnet of the rotor is often subjected to the load from the rotor side yoke in the peeling direction by the attraction force of the stator. For this reason, the attachment of the rotor-side yoke magnets must be performed more reliably and firmly. Here, as shown in FIG. 19, a large amount of an adhesive agent 151 is applied to the adhesion surface of the yoke 150, and the adhered surface of the magnet (magnet) 152 of the adherend is placed on the adhesive agent 151 'to face its magnet. On the surface to be attached, borrow a certain force

A \ 87338 Doc 1228341 f, press until the proper size is formed, and squeeze the adhesive on the gap between the yoke attachment surface and the magnet attachment surface through its gap to make sure the adhesion. On the one hand, resin magnets (bonded magnets) having excellent workability and the like have recently been used as magnets for the steering gap type electric motors. This resin magnet can be obtained by injection molding a resin (mixture) of a mixed (composite) magnet powder and a binder resin. For example, FIG. 20 is a diagram showing an example of the injection molding apparatus 16. As shown in FIG. 20, if the injection molding device 16 is injected, the injection device ΐ6ι is used to inject the 'injection port 162' to transfer the mixture of the magnetic powder and the bonding resin (resin ·), the flow channel 163, and the gate 165 (toward the mold mold). Entrance in cavity 164) Fill and fill the inside of the ring-shaped mold cavity 164. After cooling and solidification is completed, the injection port and the flow path are cut off, and the mold 166 is opened to generate a ring-shaped resin magnet. When the injected and molded resin magnet is compared with, for example, a Greek soil magnet, the Greek soil magnet is liable to rust, and there is a concern that the magnetic characteristics are reduced when the rust occurs, and the motor output is reduced. In this case, when resin magnets are formed by injection molding, when the molten resin (mixture) flows into the mold during injection molding, the part connected to the low-temperature mold wall (the surface of the molded product) is called the skin layer. The temperature of the resin is reduced to form a hardened layer, so the occurrence of rust can be suppressed. However, in the above-mentioned adhesion between the vehicle and the magnet, since the adhesive is extruded firmly and firmly, it is necessary to use a strong load for the pressing process of the magnet, or after a long period of pressing process of the magnet, As a result, the energy necessary for rotor manufacturing is increased, and the manufacturing time is increased.

A \ 87338DOC 1228341 In addition, there may be concerns about cracks in the magnet, notches, deformation of the vehicle, residual stress on the liniment layer, etc., caused by the strong load for the pressing process and after a long period of pressing. In particular, in the case of using the above-mentioned resin magnet, by molding shrinkage, as shown in FIG. 21, the center portion i7i of the adhered surface of the resin magnet m is concave from the attachment surface toward the center of the magnet 17o. Compared with the case where there is no concave portion (flat surface, compared with the 'extrusion adhesive', it must further have a larger load force ', and it must have more energy during manufacturing. In addition, since the concave portion m is liable to be exposed to gas (air), etc., there is a possibility of causing poor adhesion between the adhered surface of the plutonium iron 170 and the adhered surface of the car 172. In this way, in the past bonding of magnets (resin magnets) and vehicles, it was required to improve the increase in energy and manufacturing time, and the increase in the defective rate of rotor manufacturing caused by the above-mentioned air retention. This may cause a reduction in the life of the product (rotary electric machine using a rotor). Further, in the case where a resin magnet is formed by injection molding, as shown in (see FIG. 22 (a)) 'and FIG. 22 (b), a skin layer 181 is formed on the produced resin magnet (molded article) 180. At this time, in order to take out the molded product 180, when the injection port 162 and the runner 163 are cut off from the molded product 180, as shown in FIG. 22 (b), the gate portion (runner cutaway portion) 165 is not formed. Since the skin layer 181 is generated, the magnetic powder of the mouthwash portion 165 of the molded product 18 is peeled off. Therefore, in the molded product 180, in order to prevent rust from being generated by the gate portion 165, it is necessary to further perform an anti-filing treatment on the formed molded product 180.

A A87338DOC 1228341 :: description, as a problem with the skin generated during injection molding (1 ::::: resin magnet), it is only ^ When attached to the car, the 'skin layer 181' part is formed and attached, so it is covered. The so-called new problem of reduced adhesion strength. Here, in order to improve the adhesion strength, it is necessary to feed and modify the processing (sandblasting) for the production of the molded product (skin layer). The present invention: The developer was involved in the above matters, in order to provide a strong "negative" "pressing process" and no need to carry out a long period of pressing process, 'may = easy will be between the magnet attachment surface and The clearance of the light attachment surface < the rotor where the adhesive is squeezed out serves as the first objective. In addition, the present invention has been developed by the present invention in order to provide a method for providing a resin magnet having a coating portion without a skin layer without the need for an additional treatment such as a rust prevention treatment even when a resin magnet having a coating portion without a skin layer is used. The purpose of the rusted rotor is 2nd. Furthermore, the present invention was developed by the present invention based on the above matters, so as to provide a rotor with a high adhesion strength as a third object, even if a resin magnet produced by injection molding is used, a surface modification treatment is not required. [Summary of the Invention] In order to achieve the above object, if the rotor of the invention according to item 1 of the scope of patent application for the present invention includes: a magnet, which is oppositely disposed on the stator; and a vehicle, which is the i-th including the magnet The attachment surface is the second attachment surface to which the attachment member is fixed; and at least one of the magnet and the yoke forms the attachment between the first attachment surface and the second attachment surface.

ΑΛ87338 DOC 1228341 The gap between the members forms a tapered shape toward the end side or the center side of at least one of the first and second coin < attachment surface >. In the claim of claim 2 of the scope of patent application, one end of the aforementioned yoke forming the second attachment surface thereof abuts against the first attachment surface of the magnet previously described, and the second attachment surface The shape of the other end portion is separated by the first adhesion surface. In the invention claimed in claim 3, the center of the second attachment surface forming the aforementioned vehicle abuts on the first attachment surface of the magnet, and both ends of the second attachment surface are attached by the first Face to face shape. In the invention in the fourth scope of the patent application, the aforementioned magnet forms its first! The central portion of the attachment surface abuts the shape of the second attachment surface of the vehicle. In addition, in order to achieve the above-mentioned purpose, if the 5th m of the patent application is transferred to the "Tibetan rotor contains a resin magnet, it has a mouthwash part" attached surface; an attached member is applied to this attached surface , Enclose the adhered surface as described above, at least the description> Yaokou 胄; and the vehicle, by the aforementioned attachment member, the said adhered surface makes the aforementioned gate part air-tight. In the invention claimed in claim 6 of the patent, the attachment member is applied to the entire gate portion. In the invention according to claim 7 of the patent application scope, the attachment member is applied to the entire surface to be adhered including the gate portion. Further, in order to achieve the above-mentioned object, if the rotor according to the eighth invention of the patent application scope, the rotor includes: a resin magnet, which is generated by a molding process using a mold having a concave and convex cavity surface, and has a corresponding response. The concave-convex surface of the cavity surface as described above is used as an adhered surface; and the vehicle is attached to the adhered surface of the resin magnet through an adhesion member. AA87338DOC -10- 1228341 In order to achieve the above objective, if according to the method of manufacturing a resin magnet for inventions on page 9 of the patent application, the shape of the resin magnet is expected, and the ugly corresponds to the adhesion of the resin magnet. The mold of the surface cavity is formed into a concave and convex cavity. The resin material is injected and filled in the mold to cure the filled resin material. When the resin material is cured, the pressure is kept on the resin material. Between the branch and the mold, the surface corresponding to the contact surface of the resin material branch in the mold is subjected to unevenness processing by the generated cutting. [Embodiment] The embodiment of the rotor of the present invention will be explained with reference to the accompanying drawings (first embodiment). Fig. 1 is a steering clearance of an example of a rotary electric machine equipped with a rotor according to the! Embodiment of the present invention. Electric Rotary Motor: Side View of Wheeler. & As shown in FIG. 1, an electric two-wheeled vehicle has a front tube 2 on the front upper part of the vehicle body, and a non-illustrated steering shaft for rotating the vehicle body is inserted through the front tube 2. At the upper end 'of the steering shaft, a handle grip support portion 3 is fixed. Handles 4 are attached to both ends of the handle 3a. In addition, the handle 4 on the right side (inside of the figure i), which is not shown in the figure, constitutes a flow lever handle that can be rotated. Furthermore, from the lower end of the front pipe 2, the left and right front forks 5 are attached. At the lower ends of the front axle 5 respectively, front wheels 6 and 6 are mounted on the front axle 7 by means of the front axle 7 being freely rotatable by the front axle 7 while the front axle 7 is in the buffer revolving state. AA87338DOC -11-1228341 A meter 8 is arranged in front of the handle 3a of the handle support 3. Below the meter 8 of the handlebar support 3, a headlight 9 is fixed, and on both sides of the headlight 9 are #lamps 10 (only one illustration in FIG. 1 is formed by the tube 2 viewed from the side). A pair of left and right body frames 11 that are slightly L-shaped are extended to the rear of the vehicle body. The body frame 丨 丨 is formed in a circular tube shape and extends obliquely from the front tube 2 to the rear of the vehicle body. The rear extends horizontally to form a slightly L-shape when viewed from the side. At the rear end of the pair of body frames 11, the rear side end is rearward, and the left and right pair of cushion tracks 12 are extended above the slope. The rear end portion 12a of the cushion rail 12 is bent to the rear side in the shape of the seat cushion 13. A battery 14 is provided between the pair of left and right cushion rails 12, which can be freely installed. The battery 14 is composed of a rechargeable secondary battery. Near the curved portion of the pair of left and right seat rails 2 are welded cushion supports that are inclined toward the front of the vehicle body and formed in an inverted U shape. Article 15 is a portion surrounded by the seat post 15 and the left and right cushion rails 12, The above-mentioned seat cushion 13 can be opened and closed, that is, the seat cushion stay 15 can be configured to rotate up and down. At the rear end of the seat rail 12, a rear fender 16 is installed, and behind the rear fender 16 is installed Taillights 17. Further, signal lights (only one of which is shown in FIG. 1) 18 are mounted on the left and right sides of the taillights 17. On the other hand, horizontal portions' under the seat cushions 13 of the left and right pair of body frames are respectively welded. Rear arm bracket 19 (only one illustration is shown in FIG. 1). A pair of left and right rear arm brackets 19 support the rear arm 20 by pivoting freely.

A \ 873.18 DOC -12- 1228341 front end. Further, at the rear end portion 20a of the rear arm 20, a freely rotatable shaft supports a driving wheel rear wheel 2 2 ', and the rear arm 20 and the rear wheel 22 are suspended by a rear bumper 23. Below the horizontal portion of the left and right pair of body frames 11, there are left and right pair of foot pedals 24 (only one is shown in FIG. 1), and on the rear side of the foot pedals 24, side brackets 25 The intermediate shaft 26 can be rotatably supported on the left rear arm 20 and the side bracket 25 by the return spring 27 to urge the closing side. In the rear end portion 20a of the rear arm 20, a steering gap type electric motor 28 (hereinafter, sometimes simply referred to as the electric motor 28) connected to the rear wheel 22 and including rotational driving of the rear wheel 22 is mounted. Driving unit 29. FIG. 2 is a cross-sectional view (a part of a side view) of the arrow ιΐ-ΐι of FIG. 1 for explaining the inside of the rear end portion 20a of the rear arm 20. FIG. The rear wheels 22 are not shown. As shown in FIG. 2, on the right side of the rear end portion 20 a of the rear arm 20, a gear box 35 is covered, and an electric motor 28 and a planetary gear reducer constituting the drive unit 29 are integrated in a space formed inside the gear box 35. Machine 36 and controller 37 and so on. The steering gap type electric motor 28 is shown in FIG. 2 and includes a rotor (roller) 40 and a stator (stator) 41. The rotor is connected to the rear end portion 20a of the rear arm 20 and the bearings 38a and 38b. The center axis BO of the bearings 38a and 38b is a support that can be rotated around the center. The anchor 41 is opposite to the rotor 40 and is fixed to the inner surface of the rear end portion 20a of the rear arm. The rotor 40, as shown in Figs. 2 and 3, has a rotor-side car 42 which is formed in a slightly horse shape that is convex toward the rear end portion 20a of the rear arm 20. As shown in Figs. That is, the rotor-side vehicle 42 includes an annular portion 42a, a tapered portion 42b, a first cylindrical portion 42c, an annular portion 42d, and a second cylindrical portion 42e; the annular portion

A \ 87338DOC 1228341 42a is a ring shape facing the holder 41; the tapered portion 42b extends from the inner peripheral edge portion of the ring portion 42a toward the rear end portion 20a of the rear arm 20 and extends into a slightly conical shape (Slightly conical frustum shape); the first cylindrical portion 42c extends from the peripheral edge of the rear arm rear end portion 20a side of the tapered portion 42b to the rear end portion 20a and extends convexly along the central axis BO; the circle The ring portion 42d extends from the peripheral edge portion of the rear arm rear end portion 20a side of the cylindrical portion 42c to the inside and extends in the diameter direction. The second cylindrical portion 42e extends from the inner circumference of the ring portion 42d. The portion extends toward the rear end portion 20a in a convex shape along the central axis BO. In addition, the second cylindrical portion 42e and the intermediate bearings 38a 'to 38b are rotatably supported around the central axis line BO as a rotation axis of the rotor 40. Therefore, the rotation axis center of the rotation axis 42e of the rotor 40 corresponds to the center axis BO of the bearings 38a, 38b. In addition, the rotor 40 faces the stator side of the ring portion 42 a of the rotor-side yoke 42, and is attached and fixed via an attachment member 70 described later. The rotor 40 includes a boundary magnetic field having a coaxial circular shape with respect to the central axis BO. Use a magnet (magnet) 45. The magnet 45 is a resin magnet (bonded magnet). By injection molding, a resin (mixture) of a mixed (composite) magnet powder and a binder resin can be formed into a ring shape, and N poles and S pole. A rotating shaft 46 coaxial with the rotor 40 (rotating shaft 42e) is fixed to the wheel-side end portion of the rotating shaft 42e of the rotor 40. The rotating shaft 46 is rotatable with the rotor 40 as a unit. On the other hand, the planetary gear reducer 36 is connected to the rotating shaft 46 and is incorporated into the tapered portion 42b of the rotor-side vehicle 42. The planetary gear reducer 36 and the electric motor 28 are partially overlapped in the vehicle width direction.

AA87338 DOC -14- 1228341 The planetary gear reducer 36 is connected to the rear axle 47 which is arranged coaxially with the rotary shaft 46 and has the function of transmitting the rotation of the reduction electric motor 28 (rotation of the rotary shaft 46) to the rear axle 47. The nut 50 is screwed to the front end portion 47a protruding from the gear cover 35 of the rear axle 47, and the rear wheel 22 is fitted to the rear wheel 47. The nut 50 is screwed and mounted. In addition, as shown in FIG. 2, the holder 41 is fixed to the rear end portion 20 a of the rear arm 20, and includes a holder-side yoke (stator yoke) 60 and a plurality of tee-shaped pipe joints 61; the holder side The vehicle 60 is a laminated body structure formed by laminating circular plate-shaped or ring-shaped steel plates (referred to as ring-shaped steel plates in this embodiment) in the direction of the central axis; the majority of the T-shaped pipe joints 61 are magnets 45 faces each other with a certain gap formed by laminated bodies of steel plates. Here, FIG. 4 is an IV-IV arrow sectional view of the rotor-side vehicle 42 of FIGS. 2 and 3. As shown in FIG. 4, the ring portion 42 a of the rotor-side vehicle 42 has a magnet-opposing surface 71 facing the magnet 45 ′ with an interposing and attaching member (adhesive) 70 attached to the magnet 45 as an attaching surface, and The magnet 45 is opposed to the magnet-opposing surface 71 ′ and has an attached surface 72 attached to the magnet-opposing surface 71 via an attachment member 70. At this time, the ring portion 42 a of the rotor-side vehicle 42 is at the magnet pair. One end portion 71a on the peripheral edge side of the facing surface 71 abuts the adhered surface 72 of the magnet 45, and opposes the other end portion 71b of the one end portion 71a to form a shape separated by the adhered surface 72. The gap between the attachment member 70 between the magnet facing surface 71 and the adhered surface 72 forms a tapered shape toward the abutting portion of the one end portion 71 a of the magnet facing surface 71 and the adhered surface 72. That is, according to the present configuration, the magnet facing surface 71 and the attached surface

A \ 87338 DOC -15- 1228341 The gap between the attachment members 70 between the faces 72 is formed in a tapered shape, so as shown in FIG. 21, compared with the case where the two attachment faces are parallel, even if a small load is applied for a short time, In some cases, the adhesion member 70 between the gaps is squeezed out from the gap, and the other end 71b side of the magnet facing surface 71 may be stacked on the inner peripheral surface of the magnet 45. Therefore, it is possible to securely and firmly attach the attached surface 72 of the magnet 45 and the magnet facing surface 71 of the rotor-side yoke 42. In addition, since the one end portion 71 a on the peripheral side of the magnet facing surface 71 is in contact with the adhered surface 72 of the magnet 45, the size of the ring portion 42 a of the magnet 45 and the rotor side and yoke 42 can be easily compared. The contact is used as a reference to improve the dimensional accuracy of the rotor 40. Furthermore, since the one end portion 71 a on the peripheral edge side of the magnet facing surface 71 is in contact with the adhered surface 72 of the magnet 45, using this abutment point as a reference, it is possible to optimally ensure that the magnet facing surface 71 lies between the magnet facing surface 71. And the thickness of the attachment member layer between the attachment surfaces 72. Fig. 5 is a cross-sectional view corresponding to Fig. 4 of the rotor 40A according to the first modification of the embodiment. That is, in the present modification, as shown in FIG. 5, the ring portion 42 a of the rotor-side vehicle 42 is separated from the end portion 71 a of the peripheral side of the magnet facing surface 71 by the adhered surface 72 of the magnet 45. The other end portion 71b of the one end portion 71a is formed to abut against the surface to be attached 72. As a result, the gap between the attachment member 70 between the magnet facing surface 71 and the surface to be attached 72 is directed toward the magnet. The other end portion 7 lb of the surface 71 and the contact portion of the adhered surface 72 are formed in a tapered shape. A \ 87338 DOC -16- 1228341 According to this configuration, the gap between the attachment member 70 between the magnet facing surface 71 and the attached surface 72 is formed in a cone shape and parallel to the two attachment surfaces (see FIG. 21) In contrast, even if a small load is applied for a short period of time, the adhesion member 70 between the gaps is squeezed out from the gap, and the one end portion 71 a of the magnet facing surface 71 can be stacked on the outer peripheral surface of the magnet 45. Thereby, it is possible to obtain an improvement in adhesion between the adhered surface 72 of the magnet 45 and the magnet facing surface 71 of the rotor-side yoke 42 and an improvement in the dimensional accuracy of the magnet 45 and the ring portion 42a of the rotor-side yoke 42. The optimization of the thickness of the adhesion member layer between the magnet facing surface 71 and the adhered surface 72 is provided. -Fig. 6 is a sectional view corresponding to Fig. 4 of a rotor 40b according to a second modified example of this embodiment. That is, as shown in FIG. 6, in the present modification, the ring portion 42 a of the rotor-side vehicle 42 is one end portion 71 a on the peripheral side of the magnet facing surface 71 and the other end facing the one end portion 71 a. The portions 71 b are separated from each other by the attached surface 72 of the magnet 45, and the center portion 71 c of the magnet facing surface 71 forms a shape that abuts on the attached surface 72. The result is that between the magnet facing surface 71 and the attached surface 72. The gap of the attachment member 70 is formed in a tapered shape toward the contact portion between the central portion 71 c of the magnet facing surface 71 and the adhered surface 72. According to this configuration, since the gap between the attachment member 70 between the magnet facing surface 71 and the adhered surface 72 is formed in a tapered shape, it is parallel to the case where the two attachment surfaces are parallel (see FIG. 21). In the case of a small load, the adhesion member 70 interposed between the gaps is squeezed out of the gap, and the one end portion 71 a side and the other end side 71 b of the magnet facing surface 71 can be stacked on the outer peripheral surface of the magnet 45. And the inner surface. A \ 87138 DOC -17- 1228341 Therefore, the adhesion between the attached surface 72 of the magnet 45 and the magnet facing surface 71 of the rotor-side car 42 can be improved, and the ring portion of the magnet 45 and the rotor-side car 42 can be obtained. The improvement of the dimensional accuracy of 42a and the optimization of the thickness of the adhesion member layer between the magnet facing surface 71 and the adhered surface 72 and the like. Fig. 7 is a sectional view corresponding to Fig. 4 of a rotor 40C according to a third modified example of this embodiment. That is, in this modification, as shown in FIG. 5, the one end portion 72 a on the outer peripheral side and the other end portion 72 b on the inner peripheral side of the attachment surface 72 of the magnet 45 are respectively formed by the magnet pair of the cylindrical portion 4 5 a. The facing surface 71 is separated from each other, and a shape that abuts the magnet facing surface 71 is formed in the central portion 72c of the adhered surface 72. As a result, a gap between the magnet-opposing surface 71 and the adhered surface 72 is formed. The contact portion between the central portion 72 c facing the adhered surface 71 and the magnet facing surface 71 is formed in a tapered shape. According to the present constitution, the gap between the attachment member 70 between the magnet facing surface 71 and the adhered surface 72 is formed in a tapered shape and parallel to the two attachment surfaces (see FIG. 21). When a small load is added to time, the adhesion member 70 between the gaps is squeezed out of the gap, and the inner and outer peripheral portions 72a and 72b of the adhered surface 72 of the magnet 45 can be stacked on the inner and outer peripheral surfaces of the magnet 45. . Thereby, it is possible to obtain an improvement in adhesion between the adhered surface 72 of the magnet 45 and the magnet facing surface 71 of the rotor-side vehicle 42, and an improvement in the dimensional accuracy of the magnet 45 and the ring portion 42 a of the rotor-side yoke 42. The optimization of the thickness of the adhesion member layer between the magnet facing surface 71 and the adhered surface 72 is provided. In this embodiment, an example of the shape of the ring portion 42a of the rotor-side vehicle 42 and the magnet A: \ 87338DOC -18-1228341 45 is shown in Figs. 4 to 7, but the present invention is not limited to these. 'As long as the gap between the attachment member 70 between the attached surface 72 of the magnet 45 and the magnet facing surface 71 of the rotor-side car ring portion 42a, it may be at least within the above-mentioned attached surface 72 and magnet facing surface 71. One of the ends is formed in a tapered shape toward the center, and other shapes may be used. (Second Embodiment) Fig. 8 is an exploded perspective view showing a schematic configuration of a resin magnet 81 and a rotor-side yoke 82 of a rotor 80 according to a second embodiment of the present invention. In addition, in Fig. 8, for ease of explanation, the rotor-side vehicle 82 has a substantially cylindrical shape having a ring-shaped ring portion 8 2 a opposed to the stator .41. The resin magnet 81 of the rotor 80 in this embodiment can be obtained by injection molding the resin (mixture) of the mixed magnet powder and the binder resin. As shown in FIG. 8, after the injection molding is completed (after cooling and solidifying) On the adhered surface 81, a, there is a non-surface layer washing portion 8 3 formed when the injection port and the flow path are cut off. At this time, the rotor 80 of this embodiment is shown in FIG. 8 and has a slightly round shape. The attachment member 84 is applied to the adhered surface 81 a so as to surround each of the gate portions 83 formed on all of the adhered surface 81 a of the magnet 81, the magnet facing surface of the ring portion 82 a of the rotor-side yoke 82, The adhered surface 81 a of the magnet η attached via the adhesion member 84 constitutes the rotor 80. That is, in the present embodiment, since the attachment member material is applied so as to surround all the gate portions 83, that is, around the portion where the skin layer is peeled, the attachment member 84 is attached to the rotor-side yoke. After the ring part of "a" of 82 faces the magnets, the surrounding area of the gate portion 83 is completely blocked by the rotor. A \ 873 ^ 8DOC -19-1228341 Therefore, without rust prevention treatment or the like, it is possible to suppress the rust caused by the outside air and the surroundings that affect the gate portion 83, prevent the magnetic characteristics of the rotor 80 from being lowered, and maintain the comparison of the electric motor 28. High output. Fig. 9 is an exploded perspective view showing the general configuration of the resin magnet 81 and the rotor 82 of the rotor 80a according to the first modification of the present embodiment. It should be noted that the rotor-side vehicle 82 has a substantially cylindrical shape having a ring-shaped ring portion 82a facing the stator 41. The rotor 80A 'of this modification example is formed on a magnet as shown in FIG. The gate portions 83 of all the adhered surfaces 81 a of 81 are respectively In the entirety, the rotor 80A is coated with a slightly circular attachment member 84a, and the magnet facing surface of the ring portion 82a of the rotor 82 is attached to the adhered surface 81a of the magnet 81 to form the rotor 80A. In this embodiment, since the attachment member 84a is applied to all of the '/ Yaokou portion 83, that is, the portion where the lower skin layer is peeled off, the ring portion 82a of the rotor-side vehicle 82 is attached through the attachment member 84a. After the magnets face opposite to each other, all of the mouthwash portion 83 is blocked on the rotor-side vehicle 82, and the mouthwash portion 83 can be made airtight to the surrounding outside air. Therefore, as described above, it can help to suppress the gate. The part 83 is rusted, preventing a reduction in the magnetic characteristics of the rotor 80A and maintaining a high output of the electric motor 28. Fig. 10 shows the resin magnet 81 and the rotor 82 of the rotor 80B according to the second modification of the embodiment. An exploded perspective view of the general structure. Even in FIG. 10, for ease of explanation, the rotor-side yoke 82 is a substantially cylindrical A having a ring-shaped ring portion 82 a opposed to the stator 41. \ 87.138 DOC -20- 1228341 shape. This modification The rotor 80B, as shown in FIG. 10, includes an attachment member 84 and an attachment member 84b. The attachment member 84 is applied to the adhered surface 81a 'in a substantially circular shape so that each enclosure is formed on the entirety of the magnet 81a. The gate portion 83 'is an adhesive member 84b, which is applied to the adhered surface 81a in a slightly polygonal shape so that it includes all the gate portions 83; the ring portion 82a of the rotor-side yoke 82 is opposite to the magnet and is adhered to the surface. The members 84 and 84b are attached to the adhered surface 81a of the magnet 81 to constitute the rotor 80. Even in this modification, the gate portion 83 can be plugged by the rotor 82, and the submerged portion 83 can be placed on the periphery of the gate portion 83. The outside air is made airtight. As a result, as described above, it is possible to help suppress the rust of the gate portion 83, prevent the deterioration of the magnetic characteristics of the rotor 80A, and maintain the high output of the electric motor 28. Fig. 11 is an exploded perspective view showing a schematic configuration of a resin magnet 8 of a rotor 80C and a rotor 82 of a third modified example of the present embodiment. Also, even in Fig. II, for ease of explanation, the rotor-side yoke 82 has a substantially cylindrical shape having a ring-shaped ring portion 82a facing the stator 41. The rotor 80C of this modification includes an attachment member 84c and an attachment member 84d as shown in FIG. 11; the attachment member 84c is applied to the adhered surface 81a so as to have a higher ratio than that of the adhered surface 81 & All of the gate portions 83 are slightly circular in the inscribed circle and small diameter; the attachment member 84d is applied to the adhered surface 81a so that it includes all the gate portions 83; the rotor-side yoke The magnet-opposing surface of the ring portion 82 a of 82 is attached to the adhered surface 81 a of the magnet 81 via the attachment members 84 c and 84 d to constitute the rotor 80. A \ 87338 DOC -21-1228341 Even in this modified case, the inner rotor side of the rotor core 介 82 media attachment member 84c stuffing batter because of the pleasing rotor ㈣82 mediator attachment member _ plug all of the wrap 83 The outer peripheral side, so that the opening can be made airtight to the surrounding air. As a result, as described above, it is possible to help suppress the rusting of the mouth portion 83, prevent a decrease in the magnetic characteristics of the rotor 80C, and maintain the high output of the electric motor 28. Fig. 12 is a schematic view showing a resin magnet 81 and a rotor-side yoke 82 of a rotor 80D according to a fourth modification of the embodiment. In addition, even in the case of the rotor, for ease of explanation, the rotor side 2 = a cylindrical shape having a ring-shaped ring portion 82 & opposite to the stator 41. As shown in FIG. 12, the rotor 80D of this modification example has an attachment member 84e attached to the adhered surface 81a of the magnet 81, a magnet-opposing surface of the ring portion 82a on the rotor side, and an attachment member 84e The attached surface 81 a of the magnet “constitutes the rotor 80. In this modification, the entire attached surface 8ia including the gate portion 83 can be blocked by the rotor-side yoke 82 through the adhesion member 84e, so the gate can be gated. The portion 83 is made airtight to the surrounding air. As a result, the gate portion 83 can be prevented from rusting, the magnetic characteristics of the rotor 80D can be prevented from decreasing, and the high output of the electric motor 28 can be maintained. In this embodiment, although various application shapes of the attachment members applied to the adhered surface 81 a of the magnet 81 have been described, it is not limited to these. As long as the gate portion 83 is made into a gas The magnet 81 and the rotor 82 may be attached in a dense state, and any coating shape may be included.

A \ 87338DOC -22-1228341 (Third Embodiment) Fig. 13 is a diagram showing an injection molding apparatus 100 for a resin magnet 91 for manufacturing a rotor 90 according to a third embodiment of the present invention. As shown in FIG. 13, the injection molding device 100 includes an injection device 10, a mold 103, an injection port 104, a runner 105, and a gate 106; and the injection device 100 is used to bond magnet powder with The resin mixture (resin) is injected as a molding material; the mold 103 has a cavity (cavity) 1 0 2 corresponding to the shape of the object (resin magnet 91) to be manufactured (molded); the injection port! 〇4, the mixture C of the magnet powder and the bonding resin is transferred to the mold 103; the flow channel 105 is the resin material (mixture) c to be transferred through the injection port 104 and guided into the mold cavity 102 The gate 106 is the entrance when the runner 105 is filled with resin material into the cavity 102 of the mold. Furthermore, in the mold cavity 102 of the injection molding apparatus 100 of this embodiment, as shown in FIG. 13, the cavity surface 102a of the mold cavity surface 102a corresponding to the adhered surface 91a of the molded product (resin magnet) is applied. In the concave-convex treatment, the cavity surface i02a forms an uneven surface. Fig. 14 is a diagram of a resin magnet 91 generated (molded) by the injection molding apparatus 100 of Fig. 13. As shown in FIG. 14, an uneven surface is formed on the adhered surface 91a of the resin magnet 91 corresponding to the concave-convex surface of the cavity surface 102a, which can prevent the formation of a skin layer on the adhered surface 91a. In the following, the molding device 100 according to this embodiment is used to describe the manufacturing process of the resin magnet 91, and the effect of this embodiment will be explained. 0 A \ 87338 DOC -23-1228341 That is, when manufacturing the resin magnet 9, The mixture (resin) of the magnet powder and the bonding resin injected from the injection device 100 is transferred through the injection port, and the injection channel 105 is injected and filled into the cavity of the mold. At this time, the portion (the surface of the molded product) connected to the wall of the low-temperature mold 103 (the comparative temperature is small, so a skin layer is formed on the surface of the molded product (see FIG. 15). Here, the resin material 芫 is completely filled in the mold cavity 102, and after the injection is completed, the resin material in the mold cavity is gradually solidified. However, it is known that, before the curing of the injection molding resin material, by applying a holding pressure, a cut is generated between the molded product and the skin layer (see FIG. 16). Therefore, even in the configuration of this embodiment, the resin material injected and filled in the gate 10 is hardened by holding pressure, as shown in FIG. 17, between the resin material (molded product) C and the mold 103. There will also be clipping. At this time, according to this embodiment, since the cavity surface 102 corresponding to the adhered surface 91a of the molded product c (resin magnet 91) is a concave-convex surface, it is formed by cutting the molded product C on the substrate. The skin layer 11 of the adhesion surface 91a hangs on the skin surface and breaks. The adhered surface 9ia of the molded product C (resin magnet 91) corresponds to the unevenness of the skin surface 102a, and an uneven surface without the skin layer is formed (see FIG. 18). ). Then, by opening the mold 103, a ring-shaped resin magnet 91 of a molded product can be produced. Also, in this configuration, during injection molding, the surface 91a 'of the resin magnet 91 of the molded product c can be automatically embossed (concavo-convex processing) by the role of the cut surface 102a in response to the cutting. . Α 873873ΌΟΓ -24- 1228341 91 Adhesion strength Therefore, when the adhered surface 仏 of the resin magnet 91 is attached to the magnet facing surface of the ring portion of the rotor-side vehicle (not shown), the adhered surface (the adhered surface)仏) The attachment area is larger than the normal plane, and the resin magnet can be lifted as described above. According to the above implementation, even if the rotor 9G of the resin magnet 91 produced by injection molding is used, there is no need to perform surface modification treatment. "Additional processing" During the injection molding process, the surface to be adhered ... is automatically subjected to uneven processing (embossing) to remove the skin layer, and the adhesion strength of the resin magnet 91 generated by the above injection molding can be improved. This resin magnet 9i is applicable to applications other than magnets for rotors. In each of the above-mentioned embodiments, the rotor of the present invention is used in a steering gap type rotary electric machine mounted on a motorcycle, but the present invention is not limited to this, and it can also be adapted to the steering of other devices. The gap type rotary electric machine can obtain the above-mentioned effects. Furthermore, in each of the above-mentioned embodiments, the steering clearance type rotary electric machine equipped with the rotation of the present invention has been described with regard to the force of the steering clearance type electric motor (electric motor). However, the present invention is not limited to this, and may be The rotor is rotated by the outside, and the coil is used as a generator to generate power. In addition, for each of the embodiments described above, the rotor < rotating electric machine of the present invention has been described with reference to a steering gap type rotating electric machine (electric motor), but the present invention is not limited to this. The radial gap type rotating electric machine, That is, the facing surfaces of the magnet and most τ-shaped pipe joints are parallel to the rotation axis, and even if the gap between the facing surfaces is a cylinder, the cylinder is formed along the rotation axis.

ΑΛ87338 OOC -25- 1228341 radial clearance type rotary electric machine can also be used. [Effect of the invention] As described above, if the rotor 'item 丨 4 of the scope of the patent application concerning the present invention forms at least one of the magnet and the yoke to form the first attachment surface of the magnet and the yoke The gap between the attachment members between the second attachment faces is directed toward at least one of the i and the second attachment faces at the end side or center side: a shape of a cone shape. Therefore, compared with the case where the gap between the first and second adhesion surfaces is a predetermined thickness, even if a short load is applied, the gap can be extruded from the gap. member. Therefore, without increasing manufacturing energy and manufacturing time, the first and second attachment surfaces of the magnet and the second attachment surface of the yoke can be reliably and sturdy, and the deterioration and shortening of manufacturing yield caused by poor adhesion can be avoided. The rotor mounts the product and life of the machine. In addition, if the rotor according to items 5 to 8 of the scope of the patent application is applied, an attachment member is coated on the adhered surface of the rotor, so that it surrounds the adhered surface of the resin magnet "to the mouth" by the attachment member. The attachment surface attaches the gate to the vehicle in an airtight state. ^ As a result, no rust prevention treatment is performed, and rust can be suppressed from being generated in the surrounding area due to external air and the like. This prevents the magnetic characteristics of the rotor from being reduced, and can maintain a high output of the machine equipped with the rotor. According to the progress of the invention, according to item 8 or 9 of the scope of patent application for the present invention, because the process of forming a mold with a concave-convex cavity surface is used), it can be said that the concave-convex surface with a surface corresponding to the cavity surface is regarded as

A \ 87338 DOC -26-1228341 The resin magnet on the adhered surface can increase the area of the adhered surface of the resin magnet compared to the flat case, and can improve the adhesion strength of the resin magnet. [Brief Description of the Drawings] FIG. 1 is a side view of an electric two-wheeled vehicle equipped with an example of a device including a steering-gap type rotary electric machine including a rotor according to an i-th embodiment of the present invention. FIG. 2 is a cross-sectional view of the arrow of FIG. 1 < Π_Π for explaining the inside of the rear end portion of the rear arm of FIG. 1. FIG. Fig. 3 is a plan view of the first embodiment of the present invention when the rotor is viewed from the stator side of Fig. 2; FIG. 4 is a sectional view of the arrow ιν-ΐν of the rotor of FIG. 3. FIG. Fig. 5 is a sectional view of a rotor corresponding to an i-th modified example of the first embodiment of Fig. 4 Fig. 6 is a sectional view of a rotor corresponding to a second modified example of the first embodiment of Fig. 4. Fig. 7 is a sectional view of a rotor corresponding to a third modified example of the first embodiment of Fig. 4; Fig. 8 is an exploded perspective view showing a schematic configuration of a resin magnet and a rotor-side yoke of a rotor according to a second embodiment of the present invention, respectively. Fig. 9 is an exploded perspective view showing a schematic configuration of a resin magnet and a rotor-side vehicle of a rotor according to a Jth modification of the second embodiment of the present invention. Fig. 10 is an exploded perspective view showing a schematic configuration of a resin magnet and a rotor-side yoke of a rotor according to a second modification of the second embodiment of the present invention. Fig. 11 is an exploded perspective view showing a schematic configuration of a resin magnet of a rotor and a rotor-side vehicle in accordance with a third modification of the second embodiment of the present invention, ΑΛ87338 DOC -27. 1228341. Fig. 12 is an exploded perspective view showing a schematic configuration of a fourth modification of the second embodiment of the present invention < the resin magnet of the rotor and the rotor-side vehicle; Fig. 13 is a view showing an injection molding apparatus for a resin magnet for manufacturing a rotor according to a third embodiment of the present invention. FIG. 14 is a diagram of a resin magnet generated by the injection molding apparatus of FIG. 13. FIG. 15 is a diagram for explaining the formation process of a skin layer during molding. FIG. 16 is a diagram for explaining cutting during molding. Fig. Π is a cut-out view of the resin magnet produced during the manufacturing process of the third embodiment of the present invention. Fig. 18 is a view showing a state in which the skin layer is penetrated during the manufacturing process of the resin magnet according to the third embodiment of the present invention. FIG. 19 is a diagram showing a state of attachment of a conventional magnet to a vehicle. FIG. 20 is a diagram showing an example of an injection and injection molding apparatus. FIG. 21 is a view showing a state in which a conventional resin iron is attached to a yoke. Fig. 22 (a) is a view showing a state where a resin magnet of a molded product is cut by an injection molding device after injection molding. (B) It is a figure which expands the gate part (part A shown by the dotted circle) of the molded article of FIG. 22 (a). [Illustration of representative symbols] 1 Electric motorcycle 2 Front tube 3 Handle support 3a Handle 4 Handle A: \ 87338DOC -28- 1228341 5 Front fork 6 Front wheel 7 Axle 8 Instrument 9 Headlight 10 Signal light 11 Body frame 12 Cushion track 13 Cushion 14 Battery 15 Cushion stay 16 Fender 17 Tail 18, Signal 19 Rear arm trailer 20 Rear arm 20a Rear end 21 Pivot 22 Rear wheel 23 Bumper 24 Foot pedal 25 Side bracket 26 Shaft 28 Electric motor

A \ 873.18 DOC -29- 1228341 29 Drive unit 35 Gearbox 36 Planetary gear reducer 37 Controller 38a, 38b Bearing 40, 40A ~ 40C, 80, 80A ~ 80D 41 Fixture 42, 82 Rotor side vehicle 42a, 82a Round Ring portion 42b Tapered portion 42c First cylindrical portion 42d Ring portion 42e Second cylindrical portion 46 46 Rotating shaft 45 Magnet for magnetic field 47 Rear axle 50 Nut 60 Fastener 61 T-shaped pipe joint 70 Attachment Member 71 magnet facing surface 71a one end portion 71b other end portion 71c central portion rotor AA87338DOC -30- 1228341 72 attached surface 72a one end portion 72b other end portion 72c central portion 80, 80A-, 80C rotor 81 resin magnet 81a attached surface 82 Rotor side 82a Ring part 83 Brake parts 84, 84a ~ -84e Attachment member 90 Rotor 91 Resin magnet 91a Adhered surface 100 Injection molding device 101 Injection device 102 Cavity 102a Cavity surface 103 Mold 104 Injection inlet 105 Flow channel 106 gate 110 skin layer

A \ 87338 DOC

Claims (1)

1228341 Patent and patent application park: L — A type of rotor, which is characterized by: a magnet that is arranged opposite to the stator; and a second attachment surface that contains the magnet and is fixed through the attachment member Attachment surface; 1 At least one of the magnet and the yoke forms the i-th attachment surface: the gap between the attachment member insertion between the second attachment surface is toward at least one of the attachment surface 1 and 2 The end side or the center side is tapered. 2. The rotor of item No. [Patent Scope], wherein one end of the aforementioned second attachment surface abuts against the first attachment surface of the magnet, and the other end of the second attachment surface leaves the first attachment surface. 1 the shape of the attachment surface. 3 · If the scope of patent application is the first! The rotor of the item, wherein the center of the second attachment surface forming the vehicle is in contact with the first attachment surface of the magnet, and both ends of the second attachment surface are separated from the first attachment surface. 4 · If the scope of patent application is the first! In the rotor according to the item, the magnet has a shape in which a center portion of the second attachment surface thereof abuts on the second attachment surface of the yoke. 5. A rotor, comprising: a tree moon magnet that has a surface to be attached including a gate portion; and an attachment member that is coated on the at least the gate portion that surrounds the surface to be adhered. The person to be adhered; and the yoke is an author who uses the attachment member to make the gate portion air-tight to the surface to be adhered. For example, the rotor of item 5 of the patent scope is applied, in which the aforementioned attachment member is coated on AΛ87338 〇 ((;; 1228341). The surface to be attached including the gate portion is comprehensive. 8 · A rotor is characterized in that it includes: a resin magnet having a cavity corresponding to the cavity formed by a molding process using a mold having a concave-convex cavity surface The uneven surface of the surface is the surface to be adhered; and the vehicle is a surface to be adhered to the surface of the resin magnet through the attachment member. 9 · A method for manufacturing a resin magnet, which is characterized in that a resin magnet is produced using a resin material and is prepared to have A mold for processing the cavity surface corresponding to the shape of the resin magnet and the cavity surface corresponding to the adhered surface of the resin magnet into a concave-convex cavity; and injecting and filling the resin material into the mold to make the filled resin Material solidification; when the resin material is solidified, the sliding shear generated between the resin material and the mold by holding pressure The surface corresponding to the adhered surface of the resin material in the mold is subjected to unevenness treatment. ΑΛ87338 DOC