JP2002359943A - High-speed generator/motor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problems of rotational speed unable to increase, since the end part of winding becoming large, the distance between bearings becomes longer and stability being lost, it is difficult to cool the end part of winding and cost increasing due to the difficulty of automatic leading of winging which are generated because the winding of stator and rotor of generator and motor having to be bent in a large radius of curvature, in order to prevent generation of cracks or the like in a lead-wire. SOLUTION: A hole, corresponding to the hole provided to a magnetic steel plate or the like to form stator and rotor, is provided to at least a plate formed of at least one conductive segment surrounded with an insulator to the side surface of the magnetic steel plate to form a stator and a rotor. Accordingly, at least two conductive wires are inserted, by jointing the end portions of the conductive wires provided through the stator and rotor to the conductive segment by means of brazing or welding. As a result, length of the end part of winding in the axial direction can be reduced to a fractional value. Moreover, corrosion by fluid can also be avoided, by covering the circumference and side surface of the plate with a magnetic material and insulator.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION An electric / electronic device having a magnetic field generating structure composed of a magnetic material such as a generator or a motor and a conductor.

[0002]

[Prior art]

The prior art will be described with reference to the stator of the permanent magnet generator shown in FIGS. In the generator, a winding (1200) is wound around a cylindrical stator (1000) formed by stacking a number of plates made of a magnetic material, and a permanent magnet is inserted in a center hole (1100) at the center thereof. The built-in rotor (2000) rotates and the rotor (200)
0) The magnetic field generated around the winding (1200) generates electricity in the winding (1200). The stator (1000) is fixed to the casing (3000) by a snap ring (3400) to prevent rotation of the stator (1000) due to a reaction force.

FIG. 2 is a side view of the stator (1000), which has one center hole (1100) and several inner holes (101).
0) and an outer hole (1020). FIG. 3 is a diagram showing a relationship between a hole provided in the stator (1000) and a conductive wire. The inner hole (1010) and the outer hole (1020) have at least one wire covered with an insulating coating (5100). Conductor (5
000). The inner hole (1010) and the outer hole (102
Several conductive wires (5000) can be passed through the coupling hole (1030) in which 0) is integrated. The winding (1200) has an inner hole (1010) provided in the stator (1000),
The part that has passed through the outer hole (1020) and has formed an outer end (1210) forms a winding end (1210), and several windings (1200) at the winding end (1210) are put together to form a lead wire (1210). 1300) and is taken out of the casing (3000). The inner hole (1010) and the coupling hole (1030) are formed in the center hole (110).
Objects that are open toward 0) are common.

[0005] The rotor (2000) has a stator (100).
0) in the center hole (1100) of the drive shaft (210).
0), the journal bearing (2) via the support shaft (2200).
In (300) and (2400), the radial movement of the rotor (2000) is suppressed, and the thrust collar (2600) fixed to the drive shaft (2100) is sandwiched between the anti-thrust bearing (2500) and the thrust bearing (2700). Thus, the axial movement of the rotor (2000) is suppressed.

[0006] The stator (1000) has an inner hole (101).
0) and the winding (1200) are passed through the outer hole (1020),
One winding (1200) is passed through several holes.

The winding (1200) is connected to the stator (1000)
Many man-hours are required to pass through. It is also difficult to cool the bundled winding end (1210), and the output is restricted so that the temperature of the insulating material covering the winding (1200) becomes lower than the heat-resistant temperature.

Since a working fluid such as a turbine for driving the generator enters the generator through a gap between the drive shaft (2100) and the drive side plate (310), a partition is provided between the stator (1000) and the rotor (2000). It can be equipped with a plate,
200) The material has been changed.

[Problems to be solved by the invention]

The winding (1200) has a certain degree of rigidity and breaks when bent extremely, so that the stator (1000)
It is necessary to bend with a certain radius of curvature outside. For this reason, as shown in FIG.
0) protrudes in the axial direction to increase the length of the generator and the bearing interval, so that the natural frequency of the shaft system decreases, and it is difficult to increase the rotational speed.

The winding (120) at the winding end (1210)
In order to make the radius of curvature of 0) small and facilitate the passage of holes, several thin windings (1200) are passed through one hole, so that the sectional area of the winding (1200) with respect to the sectional area of the hole is reduced. It becomes small and causes a decrease in efficiency.

Recently, the capabilities of the permanent magnet and the magnetic steel sheet have been remarkably improved, and the length of the stator and the rotor has been shortened and reduced.
The winding end (1210) protruding from the stator (1000) has a longer axial length. Because of this speedup,
It is difficult to reduce the size and cost. Since the power of a generator or a motor is proportional to the number of revolutions, high output cannot be achieved unless the number of revolutions can be increased even if the capabilities of the permanent magnets and the magnetic steel plates are sufficient.

The winding end (1210) has many windings (1).
200) are superimposed, and it is difficult to cool the winding end (1210) due to the complicated shape. Therefore, when the output is increased, the winding (1212) at the deep portion of the winding end (1210) is increased.
00) rises fastest and reaches a temperature at which the insulation of the winding (1200) is destroyed, and no further increase in output is possible.

The operation of passing the winding (1200) through a plurality of small holes provided in the stator (1000) a plurality of times is difficult to automate, requires many steps, and hinders cost reduction.

[0014] Since the electric good conductor such as copper used for the conductor is chemically violated by the refrigerant or the like, the winding (120) is wound around the refrigerant.
Touching 0) often results in poor insulation. For this reason,
Changing to a material with high electrical resistance, such as aluminum, which is not chemically attacked by the refrigerant, reduces the efficiency of the generator and increases the cost.

The conventional lead wire (1300) is obtained by bundling several wires from the winding end (1210).
Since the lead wire (1300) is large and the bending rigidity is high, a relatively large space for taking out is required.

[Means for Solving the Problems]

A synthetic disk (4000) comprising at least one disk (4100) made of an insulating material or the like including several conductor segments is attached to the stator (100).
0) and the side of the rotor, the end of the substantially straight conductor passing through the hole of the stator or the rotor and the conductor segment are joined to conduct the conductor passing through the two holes.

[0017] A synthetic disk (4000) in which three disks made of an insulating material or the like including several conductor segments are overlapped is provided on at least one side of a stator or a rotor, and the conductor included in the disk is provided. A conducting wire is passed through a hole provided in the segment, and the conducting wire and the conductor segment are joined to each other through holes at both ends of the conductor segment so as to conduct.

The synthetic disk is sandwiched and sealed by a casing or the like, and at least a part of the synthetic disk is taken out of the casing.

BEST MODE FOR CARRYING OUT THE INVENTION

FIG. 4 shows the configuration of the first embodiment. Synthetic disks (4000) are provided on both sides of the stator (1000). The synthetic disk (4000) is a three-phase lap winding,
From the left side of FIG. 4, a disk (4100), a disk (4200),
Disk (4300), disk (4400), disk (450
0) and a disc (4600). Disk (410
No. 0) has a configuration in which a conductor segment (4115) divided into several mutually insulated conductor segments (4110) is sandwiched by insulating plates (4106) as shown in FIG. Hereinafter, the disk (4100) will be mainly described. Discs (4200) and discs (4
300), the disk (4400), the disk (4500), and the disk (4600).

The second embodiment shown in FIG.
00), the outer diameter of the synthetic disc (4000) is made smaller than the inner diameter of the synthetic disc (4000).
A space (4700) is provided for
300) and easy to take out.

The third embodiment shown in FIG.
00) and a cylinder (3210) and a cylinder (3220)
Between the synthetic disc (4000) and the synthetic disc (400
At least a part of the outer periphery of 0) is a casing (3000)
It is a configuration exposed to the outside. Since the synthetic disk (4000) is outside the casing (3000), the conductor segments (4150), (4220), and (4350)
To the outside of the casing (3000).
190), (4290), and (4390) can be connected outside the casing (3000), and the axial length of the internal configuration can be shortened and simplified.

FIGS. 7 to 9 show disks (4100) and (420).
0) and (4300) are shown together with a lead wire (5000). FIG. 7 is a cross section (a-a cross section in FIG. 8) obtained by cutting the synthetic disk (4000) along a plane passing through the rotation axis, and FIG. 8 is a cross-sectional view taken along the line bb in FIG. FIG. 9 shows the conductor segments (4110), (4120), (413).
0), (4210), (4220), (4230),
It is the thing which showed the mutual relationship of (4310), (4320), and (4330) and the joining relationship with the conducting wire (5000) in the form of a development view. In this example, the disk (4100) is composed of six conductor segments (4110), (41
20), (4130), (4140), (4150),
(4160). Conductor segment (41
10) are holes (4111), (4112), and (411)
3), (4111), (4112), and (4113). In the holes (4111) and (4116), the conductor segment (4110) and the conductor (5000) are joined. The holes (4112) and (4113) are holes through which the conductor (5000) joined to the conductor segment (4210) passes, and the holes (4114) and (4115) pass through the conductor (5000) joined to the conductor segment (4310). 5000).

FIG. 9A shows a conductor segment (411).
It is a figure which shows the structure of (0), (4210), (4310), each has six holes, and the holes (4111) and (4116) of the both ends which were colored and numbered, and the holes (4211) and (4211).
16), holes (4311) and (4316) and conductors (500
0) are joined, and the two conductors are conducted. FIGS. 9B, 9C and 9D show the disks (4100) and (42).
00) and (4300) are diagrams showing the arrangement of each of the three conductor segments included in (4300), wherein the conductor segments are insulated from each other. (E) and (f) of FIG. 9 are views showing the bonding relationship between the conductor segment and the conductor when three disks (4100), (4200), and (4300) are overlapped, and are plan views. In (e) and the side view (f), the conductor passes through all the holes, and the conductor is connected to any one of the three layers of conductor segments in all the holes.

Here, the description has been made on the assumption that the number of conductor segments is 6, the number of inner holes and the number of outer holes are 18, and the number of coupling holes is 18. However, the number is not limited. Obviously, it can be set to a number determined by design.

FIG. 10 shows an example of a detailed view of the joint between the conductor segment (4110) and the conductor (5000) constituting the disk (4100). Conductor segment (4
A conductor (5000) is inserted into a hole (4111) of the insulating film (41).
18). Joining is performed using a joining material (411).
7), conductor segment (4110), conductor (5000)
Is partially melted with a laser or the like. The size of the gap formed between the conductor segment (4110) and the conductor (5000) is determined in consideration of the flow of the melt and the insertion of the conductor (5000).

FIG. 11 shows a fourth embodiment. In the fourth embodiment, the inner periphery of the synthetic disk (4000) of the third embodiment is covered with a covering (610).
0), (6300) and side surfaces (6200), (6
400), and can prevent chemical erosion of the conducting wire (5000) and the like. In this case, the central hole (110) of the inner hole (1010) or the coupling hole (1030) is used.
It is necessary to eliminate the opening to 0).

FIG. 12 shows a fifth embodiment. The fifth embodiment is different from the third embodiment in that the synthetic disk (4000) of the third embodiment is provided with a cooling channel (700).
0) is provided to facilitate the removal of heat generated in the synthetic disk (4000).

FIGS. 13 to 16 show a sixth embodiment. Example 6
Are the conductor segments (41) constituting the disc (4100).
Examples of the shape of 10) are a belt-like shape and a column-like shape. FIG. 13 shows a configuration example in the case where the shape of the conductor segment (4110) is a belt shape. FIG. 14 shows a configuration example when the shape of the conductor segment (4110) is cylindrical. In the case of a strip shape, in the case of a combination of the thickness t and the width B which is the same as the cross-sectional area A of the conductive wire (500), the cross-sectional area of the portion joined to the conductor segment (4110) becomes equal and the electric resistance becomes equal. In the case of the cylindrical shape, as is clear from FIG. 14, when the outer diameter of the conductor segment (4110) and the outer diameter of the conductor (500) are equal, the electric resistance becomes equal. The band-shaped example in FIG. 13 and the joint in FIG. 14A are both formed by joining the outer periphery of the conductor (5000) with a laser or the like, and FIG. 14B is a circle at the end of the conductor segment (4110). The joining surface (4110c) is heated by a laser or the like through a joining hole (4110b) provided at the center of the columnar joining ring (4110a) and fusion-bonded.

FIG. 15 is a cross-sectional view of FIG.
The conductor segments (4110), (4120), (4130), and (4) of the disc (4100) when (A) is joined
140), (4150), and (4160) at the conducting wire (501).
0) and (5015), (5010) and (5015),
(5010) and (5015) are combined,
Conductors (5010) and (5065), (5020) and (5
015), (5030), (5025),..., Current flows in the same direction orthogonal to the plane. FIG. 16 shows a conductor segment (4110) of three disks (4100),
(4120), (4130), (4140), (415
0), (4160), conductor segments (4210), (4220), (4230), (42) of the disc (4200).
40), (4250), (4260), disk (430)
0) conductor segments (4310), (4320),
(4330), (4340), (4350), (436)
FIG. Each conductor segment is
Disks (4100), (4200) having a certain thickness,
(4300), the size of the conductor segment is limited to the range of the thickness of the disk.

The conductor segments having a small curvature shown in FIGS. 15 and 16 can be formed by casting, high-temperature heat molding, or the like. Even if an insulating film is required, if the film is formed after forming, damage to the film can be prevented. Can be prevented.

FIG. 17 shows the configuration of a typical rotating part of a generator or a motor. The rotating part includes a drive shaft (2100), a support shaft (2200), a rotor (2000) and a composite disc (400).
0). Synthetic disks (4000) are disks (4100), (4200), and (430) from the left side in FIG.
0) and disks (4400), (4500), (4600)
Is a combination of 18 and 19 show an example in which the present invention is applied to a rotating unit.

FIG. 18 shows a conductor segment (4110),
(4120) shows the structure of the composite disc (4000) when the cross-sectional shape is a circle. The outer edge (4020) of the composite disc (4000) is approximately equal to the outer diameter of the rotor (2000) and the inner edge (4010) is larger than the outer diameter of the drive shaft (2100) and the support shaft (2200).

The conductor segments (4110), (412)
0)... In the circumferential direction of the disc inner hole (4104) and disc outer hole (4103) provided in the synthetic disc (4000).
It is arranged so as to tie around the holes in the rows. The conductor segments (4110), (4120),... Are joined to the conductor (5000) passing through the disc inner hole (4104) and the disc outer hole (4103) located at both ends.

FIG. 19 shows a conductor segment (4110),
(4120)... A synthetic disk (400
0) is shown. FIG. 19A shows a disk (4100).
And the conductor segments (421) of the disks (4200) and (4300) shown in FIGS.
0), (4220)..., (4310), (432)
0) ... and conductor segments (4110), (412)
The arrangement relationship of 0)... Is indicated by arrows.

FIG. 19 shows a case where holes are provided only in the conductor segments. However, a through-hole corresponding to the holes of the conductor segments may be provided in the disk. The size of the hole of the conductor segment and the hole of the insulating material or the like forming the disk can also be changed.

In the example of FIG. 19, the holes of the conductor segments are all the same in size. However, since the conductor segments are joined to the conductors at the holes located at the ends in the circumferential direction, the holes have the same size as the conductors. The other holes are small and are larger than the conductors because they are holes for passing the conductors.

In the above description, the conductor (500
Although the case where (0) is a single line has been described, the present invention can be easily applied to a case where a plurality of lines are considered as one bundled line. Further, in the case of a plurality of lines, the present invention can be applied even if it is considered that the lines are arranged in a plane. Furthermore, the description has been made assuming a double winding method as a winding method of a generator or a motor,
Obviously, the present invention can be applied to other winding systems. In addition, the shape of the plate has been described as a disc that is most suitable for the shape of a conventional generator or motor and is easy to understand. However, any shape that satisfies the above description may be a free-form surface such as a polygon. But it is clear that it is good. Similarly,
Here, the shape of the conductor segment has been described in the case of the plate shape and the case where the cross-sectional shape is a circle, but it is apparent that various shapes such as an ellipse may be used.

【The invention's effect】

By joining the conductor segment (4110) orthogonal to the conductor (5000), the axial distance can be shortened with the same electric resistance as that of the prior art. Since the length of the winding end portion (1210) can be shortened, the bearing interval can be shortened, the speed can be increased, and the total length of the generator can be shortened.

The conductor (5000) is connected to the conductor segment (41).
When joined to 10), the conductor segment (4110) has a cross-sectional area spread by a flat plate as shown in FIG. 8, so that the current density is small, the electric resistance is small, and the calorific value is reduced.

The conductor (5000) of the generator according to the present invention has a straight shape and can be easily passed through the straight hole of the stator (1000), and the conductor segment (4110) contained in the disk (4100). Can be joined by a method that is easy to automate, such as soldering or welding, so that automation of production is easy and mass production costs can be reduced.

The output of a conventional generator or motor is restricted by the rise in temperature at the winding end (1210), but the portion corresponding to the winding end of the present invention is plate-shaped, and cooling is performed. Since it is easy, the temperature rise is easily suppressed, and the output is easily improved.

By protruding the synthetic disk (4000) out of the casing, a space for taking out the lead wire (1300) is not required, so that the axial length can be reduced, the size can be easily reduced, and the take-out operation can be facilitated. Becomes

The conductor (5000) and the composite disc (400
0) can be easily surrounded by the same magnetic material or insulating material as that of the stator (1000), and it is possible to avoid the influence of the fluid inside the generator, such as corrosion.

Disks (4100), (4200), (43)
(00), (4400), (4500), and (4600) are reinforced with a high-strength material, so that the rotation speed of the rotor can be increased, and the output can be improved and the size can be easily reduced.

Here, the stator of the permanent magnet type generator has been described. However, the present invention can be applied to a wound type rotor having the same configuration as the stator, and to other types of generators and motor stators and rotors. It is clear that Further, the present invention can be applied to an electric / electronic device having a magnetic field generation structure in which a winding is wound around a magnetic material or the like. In addition, although details may vary depending on the winding format and the like, the present invention can be converted to various winding systems and the like using existing technology.

[0046]

[Brief description of the drawings]

FIG. 1 shows the configuration of a conventional generator.

FIG. 2 is a side view of a stator (1000).

FIG. 3 shows a configuration example of a stator (1000), a hole in a disk, and a conducting wire (5000) passing therethrough.

FIG. 4 is a configuration of the first embodiment.

FIG. 5 shows a configuration of a second embodiment.

FIG. 6 is a diagram showing a configuration of a third embodiment, and a configuration for taking out a lead wire.

FIG. 7 is a sectional view taken along line aa of the synthetic disk (4000).

FIG. 8 is a cross-sectional view of the disk (4100) taken along line bb of FIG.
00) and conductor segment

FIG. 9: Discs (4100), (4200), (430)
FIG. 1 is an explanatory diagram expressing a joining relationship between a conductor segment and a conductor constituting 0) in a rectangular coordinate system.

FIG. 10 shows a conductor segment (411) of a disc (4100).
0) and conductor (5000)

FIG. 11 is a diagram illustrating a configuration of a fourth embodiment, in which a conductor is isolated from a fluid in a generator.

FIG. 12 is a diagram illustrating a configuration of a fifth embodiment, in which a disc cooling channel is added.

FIG. 13 is a configuration diagram of a sixth embodiment, showing a shape of a strip-shaped conductor segment and a conductive wire.

FIG. 14 is a configuration example of a sixth embodiment, showing an example of a joining diagram of a cylindrical conductor segment and a conductive wire.

FIG. 15 is a diagram showing a connection relationship between a conductor segment and a conductor constituting a disk (4100) according to the configuration of the sixth embodiment.

FIG. 16 shows the configuration of Example 6, disks (4100) and (42).
00) and (4300) when the three-layered conductor segments are arranged and joined to the conductors.

FIG. 17 is a configuration of a rotating unit.

FIG. 18 is a cross-sectional view of the configuration of the seventh embodiment, in which the cross section of the conductor segment is circular on the side surface of the rotor (2000).
Structural diagram when 0) is installed

FIG. 19 is a structural view of the configuration of the eighth embodiment, in which a synthetic disk (4000) having a plate-like conductor segment is provided on the side surface of the rotor (2000).

[0047]

[Explanation of symbols]

(1000) Stator (1010) Inner hole (1020) Outer hole (1030) Coupling hole (1100) Center hole (1200) Winding (1210) Winding end (1300) Lead wire (2000) Rotor (2100) Drive Shaft (2200) Support shaft (2300) Drive bearing (2400) Support bearing (2500) Anti-thrust bearing (2600) Thrust collar (2700) Thrust bearing (3000) Casing (3100) Drive side plate (3200), (3210), ( 3220) Cylinder (3300) Support side plate (3400) Snap ring (4000) Synthetic disc (4010) Inner edge (4020) Outer edge (4100), (4200), (4300), (440)
0), (4500), (4600) Disc (4103) Disc outer hole (4104) Disc inner hole (4117), (4217), (4317) Bonding material (4118), (4218), (4318) Insulating film (4119), (4219), (4319) Gap (4110), (4120), (4130), (414)
0), (4150), (4160) Conductor segment (4110a) Joint ring (4110b) Joint hole (4110c) Joint surface (4111), (4112), (4113), (411)
4), (4115), (4116) holes (4190), (4290), (4390) exit lines (4210), (4220), (4230), (424)
0), (4250), (4260) Conductor segment (4211), (4212), (4213), (421)
4), (4215), (4216) holes (4310), (4320), (4330), (434)
0), (4350), (4360) Conductor segment (4311), (4312), (4313), (431)
4), (4315), (4316) hole (4700) space (5000), (5010), (5015), (502)
0), (5025), (5030), (5035),
(5040), (5045), (5050), (505
5), (5060), (5065) Conducting wire (5100) Insulating coating (6100), (6200), (6300), (640)
0) Coated body (7000) Cooling channel

Continued on the front page (72) Inventor Eito Matsuo 650-10 Haraguchi, Isahaya-shi (72) Inventor Masatoshi Matsuo 2-12-7 Kaicho, Nagasaki-shi King Mansion 304 (72) Inventor Takuya Matsuo 1-Higashi-Omura, Omura-shi 2693-46 (72) Inventor Akiko Matsuo Haraguchi Isahaya 655-10 F-term (reference) 5H603 AA03 AA04 AA09 AA11 AA17 AA18 BB01 BB02 BB12 CA01 CA05 CB03 CB04 CC04 CD05 CD22 CE13 EE01 FA01

Claims (11)

[Claims] 1. A structure for generating a magnetic field by winding a conductor such as a copper wire around a structure made of a magnetic material or the like, wherein at least one side of at least one side of the structure made of a magnetic material or the like is provided. An electrical and electronic device characterized in that at least one or more plates made of a conductor segment and an insulating material are provided to conduct at least two or more conductive wires. 2. An electric / electronic device according to claim 1, wherein at least a part of a plate made of a conductor segment and an insulating material is projected. 3. A generator or motor in which a conductor and a conductor segment are joined at a plate made of at least one conductor segment and an insulating material provided at least at one end of the conductor on a side surface of the magnetic field generating structure. And other electrical and electronic equipment. 4. A plate in which at least one conductor segment and at least two plates composed of an insulating material or the like are combined is provided on at least one surface of at least one of a stator and a rotor, and wound around the stator and the rotor. An electric / electronic device such as a generator or a motor, wherein the electric wire and the conductor segment are joined to conduct electricity. 5. A plate in which at least one conductor segment and two or more plates made of an insulating material or the like are superposed on at least one surface of at least one of a stator, a rotor, and the like, and the conductor and the conductor segment are joined. Electrical and electronic devices, such as generators and motors, which are electrically connected to each other. 6. A plate in which at least one conductor segment and a plate made of an insulating material or the like are overlapped by two or more layers by displacing at least one hole in each layer, at least one of a stator, a rotor and the like. An electric / electronic device such as a generator or a motor, which is provided on one surface and connects a conductor and a conductor segment by a conductor segment to conduct electricity. 7. At least one conductor segment and an insulating material are provided on the side surface of a structure that generates a magnetic field through a hole or a groove provided in a structure made of a magnetic material forming a stator, a rotor, or the like. An electric / electronic device such as a generator or a motor, comprising a plate having holes and grooves corresponding to the holes and grooves provided in the structure, and connecting and conducting a conductor and a conductor segment. . 8. A side surface of a structure that generates a magnetic field by passing a conducting wire through a hole or a groove provided in a structure made of a magnetic material constituting a stator, a rotor, or the like, and at least one conductor segment and an insulating material. Is provided, at least two plates having holes and grooves corresponding to the holes and grooves provided in the structure are provided so as to overlap at least one hole or groove,
An electric / electronic device such as a generator or a motor, wherein a conductor and a conductor segment are joined to conduct electricity. 9. The method according to claim 3,4,5,6,7,8.
An electric / electronic device such as a generator or a motor, wherein a plate composed of at least one conductor segment and an insulating material is reinforced with a high-strength material. 10. An electric and electronic device such as a generator or a motor according to claim 3, wherein the conductive wire is isolated from a fluid existing in the periphery by a magnetic material, an insulating material or the like. . 11. A plate according to claim 3, 4, 5, 6, 7, or 8, wherein at least one side surface, at least one side, an outer periphery, and an inner periphery of at least one sheet of a plate composed of at least one conductor segment and an insulating material. Electrical and electronic equipment, such as a generator and a motor, provided with a cooling passage.