JPH0317574Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a rotor of a magnet generator, and in particular,
The present invention relates to an improvement in the fixing structure of permanent magnets, and is effective for use in the rotor of a magnet generator mounted on a small or special vehicle such as a motorbike or a buggy.

[Conventional technology]

Generally, small or special vehicles such as motorcycles and buggies sometimes use magnet generators that utilize permanent magnets (hereinafter referred to as magnets) such as ferrite magnets.

This type of magnet generator consists of a rotor consisting of a plurality of magnets arranged and fixed at equal intervals around the inner periphery of a yoke, and a core with coils wound around multiple radial locations. The generator is configured such that the rotor is driven by the engine and rotates around the generator to induce superpower in each magnetic pole coil of the generator.

Conventionally, as a rotor used in such a magnet generator, a resin case is formed by connecting a plurality of magnet storage chambers of a shape corresponding to the magnets in a ring shape with an open upper frame, which is fitted into a yoke. A plurality of magnets with pole pieces arranged on the inner surface are inserted into each housing chamber of this case, and a presser ring is placed on the case, and the opening edge of the yoke is caulked inward. Therefore, there are some devices in which a plurality of magnets are fixedly arranged at intervals on the inner periphery of the yoke (see, for example, Japanese Utility Model Application No. 129377/1983).

In the rotor of such a magnet generator, adhesive is supplied along the inner circumference of the yoke before covering it with the presser ring, and the adhesive is completely penetrated to bond the magnet to the yoke. It is conceivable to supplement the mechanical clamping of the magnet in the chamber.

[The problem that the idea aims to solve]

However, in the rotor of such a magnet generator, when the adhesive is supplied along the inner circumference of the yoke, if a recess is formed on the upper edge of the pole piece for separation during press processing, it may be difficult to press the adhesive. The inventor of the present invention has revealed that there is a problem in that the adhesive flows out from the recess to the inner peripheral surface due to the pressure applied by the ring.

If the adhesive flows out onto the inner circumferential surface, not only will the inner circumferential surface be contaminated, but also the rotational clearance with the generator may be narrowed, and the fixing force against the magnet may be insufficient.

The present invention has been developed in view of these problems, and its purpose is to provide a rotor for a magnet generator that can prevent adhesive from flowing out.

[Summary of the idea]

[Means for Solving the Problems] The rotor of the magnet generator according to the present invention includes a yoke 11 formed in a cylindrical shape with a bottom, and a ring 33 fitted into the yoke 11.
A case 14 on which a plurality of partition walls 35 are arranged at intervals in the circumferential direction and protrude in the axial direction, so that storage chambers 31 are formed between the partition walls 35; A plurality of magnets 12 are inserted into each of the yoke 11 and each pole piece 13 is arranged on the inner surface of each of the 14 storage chambers 31, and the case 14, the 12 groups of magnets, and the pole piece are inserted into the yoke 11 13
The case 14 and the magnet are provided with a retaining ring 15 that is placed over the group, and the winding caulking margin 19 formed at the opening edge of the yoke 11 is caulked inward in the radial direction, so that the case 14 and the magnet 12 groups,
In a rotor of a magnet generator in which a pole piece 13 and a presser ring 15 are compressed between the bottom wall of a yoke 11 and a winding caulking part to form a single unit, the upper end side of each pole piece 13 is press-worked. A separation recess 29 is cut out at the intermediate portion, and an adhesive reservoir 26 is provided on the upper surface of each magnet 12.
are arranged and recessed so as to face the recess 29, and each adhesive reservoir 26 is arranged so that its depth is deeper than the depth of the recess 29 and in the radial direction of the magnet 12. The adhesive 44 is supplied to each adhesive reservoir 26 and is heated and melted in the gap between the magnet 12 and the yoke 11 and the gap between the magnet 12 and the pole piece 13. By being penetrated,
Adhesive layer 45 is magnet 12, pole piece 1
3. It is characterized by being formed on the yoke 11 and the case 14.

[Effect]

According to the above-described means, even if the adhesive 44 supplied to the adhesive reservoir 26 is pushed by the presser ring 15, it is dammed up by the pole piece 13, so that it is prevented from flowing out to the inner peripheral surface of the pole piece 13. be done. Since the adhesive reservoir 26 is recessed over the entire width of the magnet 12 in the radial direction, the adhesive 44 stored in the adhesive reservoir 26 is absorbed into the gap between the magnet 12 and the yoke 11 and the gap between the magnet 12 and the yoke 11. The adhesive penetrates into the gap between the magnet 12 and the pole piece 13, effectively forming an adhesive layer 45, and as a result, the adhesion of the magnet 12 is greatly improved.

〔Example〕

Fig. 1 is an exploded perspective view showing the rotor of a magnet generator that is an embodiment of the present invention, Fig. 2 is a vertical cross-sectional view showing its assembled state, and Fig. 3 shows progressive punching and press processing of pole pieces. A plan view, FIG. 4 is an enlarged partial perspective view showing the supply of adhesive, and FIG. 5 is an enlarged partial sectional view for explaining the fixing action.

In this embodiment, the rotor as a magnetic unit includes a yoke 11 and a plurality of magnets 12.
, the same number of pole pieces 13, and the case 14,
A holding ring 15 is provided.

The yoke 11 is integrally molded with a magnetic material into a substantially bowl-like shape with an open upper surface and a closed lower surface, and the lower closed wall has a shaft hole 16 in the center for inserting a boss (not shown) that is directly connected to the engine. A plurality of attachment holes 17 for connecting the rotor to the boss are respectively formed at positions outside the shaft hole 16. The case 14 is located outside the mounting hole 17.
A plurality of small holes 18 are provided to prevent rotation of the mounting hole 17 and the small holes 18 are arranged at arbitrary angles in the circumferential direction. A winding margin 19 is formed at the upper end of the yoke 11 by cutting the outer periphery.

The magnet 12 has a height H that is less than the depth of the yoke 11, and is integrally formed into a substantially rectangular parallelepiped having a circular arc shape curved along the inner circumference of the yoke 11 in the width direction. At both ends of the arc-shaped inward surface (hereinafter referred to as the ventral surface) 20 of the magnet 12, inclined portions 22 approach the arc-shaped outward surface (hereinafter referred to as the back surface) 21 as the magnet 12 goes outward in the circumferential direction. The inclined portions 22, 22 at both ends form a fan shape that becomes narrower on the inner diameter side. Rising side surfaces 23 and 23 on both sides where the inclined parts 22 and 22 are adjacent to each other, and an upper surface 24
and the lower surface 25 are formed parallel to each other.

An adhesive reservoir 26 is provided on the upper surface 24 of the magnet 12.
is recessed in a substantially semicircular shape, and this reservoir 26 is arranged so as to face a recessed portion (to be described later) in the pole piece 13, and its depth is deeper than the depth of the recessed portion, and magnet 12
It is formed to span the entire width in the radial direction.

The pole piece 13 is formed by progressive punching and press processing using a magnetic metal material, and is formed into a substantially rectangular plate with an arc length of 15 to 20 mm and a thickness of approximately 0.5 to 1.0 mm. ing.

The height h of the pole piece 13 is set to be slightly higher than the height H of the magnet 12, and its width is set to be approximately equal to the width W of the magnet 12.
It has an arcuate shape curved along the ventral surface 20 of the case 14, but the dimensions are such that there is a press-fit allowance after assembly with the case 14.

At both ends of the pole piece 13 in the width direction, bent portions 27 are formed so as to extend outward toward the back side, and the bent portions 27 have a fold line. It is tapered in the vertical direction so that it approaches the center as it goes downward. Due to this taper, there is no press-fitting allowance with the case at the initial stage of assembly. A notch 28 is formed at the lower end of each of the bent portions 27 .

Recesses 27 are formed approximately at the center of the upper and lower end sides of the pole piece 13, and as shown in FIG. When the pole pieces were finally separated, the cut-off allowance was inevitably generated.

The case 14 is integrally molded using a non-magnetic material such as synthetic resin, and has a generally cylindrical shape that fits inside the yoke 11 as a whole.
A plurality of storage chambers 31 are formed in the cylindrical wall 30 of the case 14 and arranged in the circumferential direction with substantially equal phase differences. The accommodation chamber 31 is formed into a hollow chamber having a height h' that is less than the height H of the magnet 12 and a width slightly larger than the width W of the magnet 12, and the center of the ceiling wall, rear wall, and abdominal wall. Each section is open to the public. Therefore, the case 14 has a shape in which a plurality of frames each having an open top are connected in a ring shape.

The floor walls 32 of each storage chamber 31, ie the lateral pieces of each open top frame, are adjacent to each other to form a series of rings 33. A plurality of convex portions 34 are arranged and protruded from the lower surface of the ring 33 so as to be directly below the partition wall portion 35 between the storage chambers 31 and 31. It is formed to fit into the hole 18.

Between the adjacent storage chambers 31, 31, there are partition walls 35 corresponding to the vertical pieces of the upper open frame.
is formed to stand up in the shape of a column. Presser claws 36 are provided at both ends of the ventral surface of the partition wall 35 to protrude from each other so as to close a portion of the open ventral surface of the storage chamber 31, and the pressure claws 36 have a substantially triangular cross section. The surface in contact with the storage chamber 31 forms an oblique side that approaches the ventral surface as it goes toward the open side (protruding direction). In addition, the presser claw portion 36 is formed in a tapered shape in which the thickness gradually increases toward the rear as it goes downward in the vertical direction, and thereby, as shown in FIG. The edges of the pair of presser claws 36, 36 of one partition wall 35 are inclined with respect to the cylindrical core so that they approach each other as they go downward.

Furthermore, a long groove 37 is formed on the ventral surface of the partition wall 35 so as to be approximately parallel to the cylindrical center and to become shallower as it goes downward. It is opened at. A long guide groove 38 is formed on the outer circumferential surface of the partition wall 35 so as to be substantially parallel to the cylindrical center, and the upper end of this groove 38 is also opened at the top surface of the partition wall 35 .

Further, on both circumferential side surfaces of the partition wall portion 35, pressing ribs 39 are provided in a protruding manner in the shape of an elongated triangular pyramid that becomes thinner toward the top.

The presser ring 15 is integrally molded using the same material as the case 14 and has a circular annular shape substantially equal to the cylindrical shape of the case 14. The lower surface of this ring 15 has a rib 41 that fits into the long groove 37 of the case 14.
A plurality of grooves 37 are arranged in the circumferential direction so as to align with each long groove 37, respectively, and protrude from each other. The rib 41 has a thickness t that is slightly smaller than the width T of the long groove 37.
(See FIG. 5) is formed into a substantially rectangular flat plate. The outer edge of the rib 41 is tapered toward the center as it goes downward.

Guide rods 42 that fit into the guide long grooves 38 of the case 14 are protruded from an appropriate number of outer positions of the plurality of ribs 41 so as to be aligned with the respective long grooves 38 .

Further, a step portion 43 is cut into an annular shape at the upper end of the outer periphery of the presser ring 15 to improve fitting with the winding caulking portion 19 of the yoke 11.

Next, the structure of the rotor of the magnet generator will be explained by explaining the assembly work of the rotor of the magnet generator using each component according to the above structure.

First, the case 14 is fitted into the yoke 11, and the convex portions 34 on the lower surface of the case 14 are fitted into the small holes 18 formed in the bottom wall of the yoke 11, respectively. By fitting the small hole 18 and the convex portion 34, the case 14 is prevented from rotating integrally with the yoke 11.

Subsequently, the magnet 12 and the pole piece 13 are inserted into each housing chamber 31 of the case 14 from above. At this time, the magnet 12 and the pole piece 13 may be inserted either first or both together, but it is necessary to arrange them so that the back surface of the pole piece 13 comes into contact with the vent surface 20 of the magnet 12.

When the magnet 12 and the pole piece 13 are inserted, the holding claw part 36 of the case 14 is tapered to narrow the accommodation chamber 31 downward, so it is not press-fitted at the initial stage of insertion, but when the magnet 12 and the pole piece 13 are inserted, As the process progresses, the housing chamber 31, the magnet 12, and the pole piece 13 are press-fitted from a certain point.

Adhesive 44 is then supplied to adhesive reservoirs 26 formed on the top surface of each magnet 12, as shown in FIG. At this time, since the height of the upper end of the pole piece 13 and the bottom of the recess 29 are higher than the upper surface of the magnet 12, the adhesive 44 does not flow out to the inner peripheral surface.
It stays in the adhesive reservoir 26.

The adhesive 44 forms a paste having an appropriate viscosity while it is stored.
It is desirable to use an adhesive that is once fluidized by heating and then cured, such as an epoxy resin-based thermosetting adhesive.

Thereafter, the holding ring 15 is placed over the case 14 and pushed down, thereby pushing each magnet 12 and pole piece 13 into each accommodation chamber 31 of the case 14. At this time, the guide rod 42 of the holding ring 15 is fitted into the guide long groove 38 of the case 14, and the ribs 41 are aligned and fitted into the long grooves 37 using this as a guide. Further, the pressing ring 15 is pressed down with as much uniform force as possible applied to the entirety.

Subsequently, the winding and caulking section 19 at the upper end of the yoke 11 is pressed inward and subjected to a winding and caulking process. This winding and caulking process allows the presser ring 15 to be strongly pressed down and to maintain this force, so that the magnet 12 and pole piece 13 remain strongly pressed into the accommodation chamber 31 of the case 14. will be done. Then, the yoke 11, the magnet 12, the pole piece 13, the case 14, and the holding ring 1
5 will be crimped and integrated.

When the magnet 12 and the pole piece 13 are strongly pushed into the housing chamber 31 of the case 14, the bent part 27 of the pole piece 13 and the holding claw part 36 of the housing chamber 31 are pressed together, as shown in FIG. Since it is inclined with respect to the normal line of the cylinder core, due to the pushing force, a force F ₁ pushing in the circumferential direction and a force F ₂ pushing inward in the radial direction are exerted on the pressing surfaces of both 27 and 36. will come into play.

Due to the reaction force to the resultant force of both forces F ₁ and F ₂ , the pole piece 13 pushes the magnet 12 outward in the radial direction, and this pushing force F ₃ causes the magnet 12 to push its back surface against the yoke 11 . It is strongly pressed against the inner circumferential surface of and mechanically fixed.

On the other hand, due to the radially inward force F ₂ acting on the presser claws 36 , a force that tends to push down the partition wall 35 inwardly acts on the partition wall 35 . The ribs 39 of the ring 15 are fitted, and the ribs 39 support the partition wall 35 with a force F ₄ that resists the pushing force, so that the partition wall 35 maintains its upright state. Therefore, as the pole piece 13 is press-fitted, the circumferential pressing force F ₁ is increased at the bent portion 27 according to the taper of the holding claw portion 36 of the partition wall portion 35.
Radial outward force relative to magnet 12
F ₃ will be strengthened.

Further, as the magnet 12 is press-fitted, the presser ring 39 protruding into the storage chamber 31 at the lower side of the partition wall 35 is crushed by the side surface of the magnet 12. In this crushed state, the rib 39 is compressed and deformed by the magnet 12 and is strongly pressed, so the magnet 12 is relatively close to the accommodation chamber 31.
Positioning in the circumferential direction and the vertical direction is ensured by the ribs 39, 39 on both sides.

By the way, assuming that a paste adhesive is supplied and placed on the top surface of a flat magnet, when the presser ring is pressed against the magnet, the adhesive will swell up on the top surface of the magnet. Therefore, it will be crushed and spread. At this time, if a recess for separation is formed on the upper end side of the pole piece, a situation may occur in which the spread adhesive is pushed out of the recess and flows out.

However, in this embodiment, since the paste adhesive 44 is stored in the adhesive reservoir 26 formed on the upper surface of the magnet 12, a recess 29 for separation is formed in the pole piece 13. Even if the adhesive 44 is present in the recess 29, the adhesive 44 is prevented from flowing out from the recess 29.

That is, since the adhesive 44 is accumulated in the reservoir 26, the amount of the adhesive 44 rising on the upper surface of the magnet 12 is small, so that the extent to which the adhesive 44 is pushed and spread by the presser ring 15 is suppressed. Moreover, since the depth of the adhesive reservoir 26 is set to be deeper than the depth of the recess 29 at the upper end side of the pole piece 13, the adhesive 44 pushed and spread by the holding ring 15 is applied to the pole piece 13. It will be dammed up at the top edge.
Therefore, the adhesive 44 is prevented from flowing out from the recess 29 formed on the upper end side of the pole piece 13.

Thereafter, the assembly is heated by suitable heating means such as a heating furnace or the like. Due to this heating,
Since the paste-like adhesive 44 has a low viscosity and becomes extremely easy to flow, the adhesive 44 in the adhesive reservoir 26 located on the magnet 12 is attached to the magnet 12, the pole piece 13, the yoke 11,
It quickly and uniformly permeates into the gaps in the storage chamber 31 due to gravity and capillary action. At this time, since the adhesive reservoir 26 is located lower than the recess 29, the fluidized adhesive 44 does not flow out from the recess 29 to the inner peripheral surface of the pole piece 13. Moreover, since a sufficient amount of the adhesive 44 is secured in the reservoir 26, the adhesive 44 sufficiently penetrates into the gaps between the magnet 12, the pole piece 13, the yoke 11, and the storage chamber 31. This will ensure a predetermined adhesive force.

As the heating progresses, the once fluidized thermosetting adhesive 44 hardens, so the magnet 12
is adhered to the yoke 11 and the storage chamber 31 by a hardened adhesive layer 45. At this time, the adhesive 44 is uniformly and sufficiently diffused into the narrow gap between the joint surfaces of the magnet 12, the pole piece 13, the yoke 11, and the storage chamber 31, so that its adhesive strength is extremely high.

In this way, the rotor of the magnet generator shown in FIG. 2 was manufactured, and the magnets 12 were arranged at predetermined intervals on the inner circumference of the yoke 11 and were firmly fixed. It is becoming a state.

That is, in this rotor, each magnet 12 is fitted into the yoke 11 and is press-fitted into each housing chamber 31 of the case 14, which is prevented from rotating by the small hole 18 and the convex portion 36, with the pole piece 13 arranged on the inner surface thereof. and the partition wall portions 35, 35
In between, the inclined part 27 of the pole piece 13 and the presser claw part 36 of the partition wall part 35 cooperate to receive a radially outward component force and are pressed and fixed against the inner circumferential surface of the yoke 11. The adhesive 44 in the agent reservoir 26 is connected to the magnet 12, the pole piece 13,
It is adhesively fixed by an adhesive layer 45 formed by penetrating into the gap between the yoke 11 and the storage chamber 31 and hardening.

According to this embodiment, by forming an adhesive reservoir on the upper surface of the magnet and supplying paste adhesive to this reservoir, the adhesive is suppressed from being spread out when pressed by the presser ring. At the same time, the spread adhesive can be dammed, so even if a recess is formed on the upper edge of the pole piece for separation during press processing, the adhesive will not flow out from the recess to the inner peripheral surface. It is possible to prevent this from happening.

Since the adhesive can be prevented from flowing out, it is possible to avoid contamination of the inner circumferential surface of the rotor, narrowing of the rotational clearance with the generator, and reduction in adhesive fixing force.

By making it possible to use a pole piece with a recess on the upper edge, it is possible to use the pole piece as it is produced by progressive punching press processing without any post-processing such as cutting. Productivity can be increased.

The magnet can be bonded by heating and melting the adhesive supplied to the adhesive reservoir and allowing it to permeate throughout the magnet.The case assists in mechanically fixing the magnet to the yoke, making the magnet more securely fixed. can be converted into

By storing the adhesive in the adhesive reservoir, the required amount of adhesive can be secured, and thus the desired adhesive force can be secured.

Fitting the case into the yoke, supplying adhesive to the adhesive reservoir, inserting the magnet and pole piece into the housing chamber of the case, and setting the retainer ring are all done from a single direction, making it extremely easy to work. It is easy to achieve full automation.

The magnet and pole piece are each inserted into each housing chamber formed in the case, and they are press-fitted and fixed using a retainer ring, which reduces the number of parts and assembly man-hours, and also allows for easy installation with screws or rivets. Stopping work can be eliminated, improving work efficiency, and since each magnet is independent, no wasted parts such as neutral parts are generated, which is economically advantageous.

The structure is such that the magnet is pressed against the yoke with an elastic force by the partition wall of the case, which is relatively elastically deformed due to the press-fit relationship between the case and retainer ring, the magnet, and the pole piece. The magnet can be securely fixed to the yoke for a long period of time under certain conditions.

In addition, in the fixed state, the magnet is surrounded all around by the case, retainer ring, and pole piece, so even if the magnet were to break, the fragments would not be scattered, and the fragments would be scattered as the rotor rotates. It is possible to prevent the occurrence of secondary troubles due to the scattering of particles.

It should be noted that the present invention is not limited to the above-mentioned embodiments, and may be modified without departing from the gist thereof.
It goes without saying that various changes are possible.

[Effect of idea]

As explained above, according to the present invention, by supplying the adhesive to the reservoir formed on the upper surface of the magnet, when the adhesive is pressed by the holding ring, the pole piece can stop the adhesive. This prevents the adhesive from flowing out from the pole piece, and allows the adhesive supplied to the reservoir to permeate throughout, allowing the magnet to be strongly bonded.

In addition, by making it possible to use a pole piece with a cut-off recess on the upper edge, it is possible to use the pole piece as it is produced by progressive punching press processing without any post-processing such as cutting. As a result, productivity can be increased.

The magnet can be bonded by heating and melting the adhesive supplied to the adhesive reservoir and allowing it to permeate throughout the magnet.The case assists in mechanically fixing the magnet to the yoke, making the magnet more securely fixed. can be converted into

By storing the adhesive in the adhesive reservoir, the required amount of adhesive can be secured, so that the desired adhesive force can be secured.

The magnet and pole piece are each inserted into each housing chamber formed in the case, and they are press-fitted and fixed using a retainer ring, which reduces the number of parts and assembly man-hours, and also allows for easy installation with screws or rivets. Stopping work can be eliminated, improving work efficiency, and since each magnet is independent, there are no unnecessary parts such as neutral parts, which is economically advantageous. .

In addition, in the fixed state, the magnet is surrounded all around by the case, retainer ring, and pole piece, so even if the magnet were to break, the fragments would not be scattered, and the fragments would be scattered as the rotor rotates. It is possible to prevent the occurrence of secondary troubles due to the scattering of particles.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view showing the rotor of a magnet generator that is an embodiment of the present invention, Fig. 2 is a vertical cross-sectional view showing its assembled state, and Fig. 3 shows progressive punching and press processing of pole pieces. A plan view, FIG. 4 is an enlarged partial perspective view showing the supply of adhesive, and FIG. 5 is an enlarged partial sectional view for explaining the fixing action. 11...Yoke, 12...Magnet, 13...
... Pole piece, 14 ... Case, 15 ... Holding ring, 16 ... Shaft hole, 17 ... Mounting hole,
18...Small hole, 19...Rolling crimping allowance, 20...
Ventral surface, 21... Back, 22... Inclined part, 23...
Side surface, 24...Top surface, 25...Bottom surface, 26...Adhesive reservoir portion, 27...Bend portion, 28...Notch portion, 2
9...Separation recess, 30...Cylinder wall, 31...Accommodation chamber, 32...Bottom wall, 34...Protrusion, 35...
…Partition wall portion, 36…Press claw portion, 37…Long groove,
38... Long groove for guide, 39... Holding rib, 4
1...Rib, 42...Guide rod, 43...Step,
44...adhesive, 45...adhesive layer.

Claims (1)

[Claims for Utility Model Registration] A yoke 11 formed in a cylindrical shape with a bottom,
It is fitted into this yoke 11, and a plurality of partition walls 35 are arranged on the ring 33 at intervals in the circumferential direction and protrude in the axial direction.
A case 14 in which a housing chamber 31 is formed between each of the partition walls 35, and a plurality of magnets 12 inserted into each housing chamber 31 of the case 14 with each pole piece 13 disposed on the inner surface thereof. and is inserted into the yoke 11, and is connected to the case 14, the 12 groups of magnets, and the pole piece 13.
The case 14 and the magnet are provided with a retaining ring 15 that is placed over the group, and the winding caulking margin 19 formed at the opening edge of the yoke 11 is caulked inward in the radial direction, so that the case 14 and the magnet 12 groups,
In a rotor of a magnet generator in which a pole piece 13 and a holding ring 15 are integrated by being sandwiched between the bottom wall of a yoke 11 and a winding caulking part, the upper end side of each pole piece 13 is press-formed. A separation recess 29 is arranged and cut in the middle part, and an adhesive reservoir 26 is provided on the upper surface of each magnet 12.
are arranged and recessed so as to face the recess 29, and each adhesive reservoir 26 is arranged so that its depth is deeper than the depth of the recess 29 and in the radial direction of the magnet 12. The adhesive 44 is supplied to each adhesive reservoir 26 and is heated and melted in the gap between the magnet 12 and the yoke 11 and the gap between the magnet 12 and the pole piece 13. By being penetrated, the adhesive layer 45 is attached to the magnet 12 and the pole piece 1.
3. A rotor for a magnet generator, characterized in that it is formed in a yoke 11 and a case 14.