JPH11233171A - Sliding contact connecting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a small sliding contact connecting device for connecting a conductor of a unit forming an electric line of a gas insulated switching device, a gas insulated transmission line, or the like. SOLUTION: The end part 11a of one conductor 11 of the end parts of linearly arranged facing conductors 11, 12 is formed in a step and its outer circumference is used as a contact surface, and the end part 12a of the other conductor 12 is cylindrically formed and its inner circumference is used as a contact surface. A contact 13 having a contact part 13a for being in contact with the outer diameter of one conductor 11 in the middle part on the inner circumference side in the arranged state and a contact part 13b for being in contact with the contact surface on the inner surface of the end part 12a of the other conductor 12 in the end part on the outer circumference side in the arranged state, radially arranged to the central axis, in the axial direction between the contact surface in the outer circumference of one conductor 11 and the contact surface in the inner circumference of the other conductor 12, is fit to the inner diameter of the end part 12a of the other conductor 12. By applying spring pressure from one end side of the contact 13, the contact 13 acts as a lever to apply the contact pressure to the contact parts 13a, 13b.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sliding contact connecting device for connecting conductors of a unit forming an electric path such as a gas insulated switchgear, a gas insulated power transmission line and the like.

[0002]

2. Description of the Related Art FIG.
FIG. 1 is a cross-sectional view illustrating a structure of a conventional sliding contact connection device disclosed in Japanese Patent Application Publication No. H10-115,878. In the figure, reference numeral 1 denotes a first conductor, and a contact portion 1a having a step at an end is formed. Reference numeral 2 denotes a second conductor, which is similarly provided with a step at its end to form a contact portion 2a.
Are formed. Reference numeral 3 denotes a plurality of contacts which are arranged between and contact the opposing outer periphery of the contact portion 1a of the first conductor 1 and the outer periphery of the contact portion 2a of the second conductor 2, and 3a and 3b at both ends are contact portions. is there. Reference numeral 4 designates the contact 3 as the contact portion 1 of the first conductor 1.
a mounting plate for fixing the mounting plate 4 to the end of the first conductor 1; and 6, a spring ring for applying a contact pressure to the contact portions 3a and 3b of the contactor 3. The coil spring formed in a coil shape is formed in a ring shape, and its circumference is slightly shorter than the outer circumference of the parallel contacts 3. Reference numeral 7 denotes a shield for avoiding electric field concentration on the outer peripheral portion of the contact 3. Reference numeral 8 denotes a guide plate inserted between the contacts to maintain the interval between the contacts 3, and 9 denotes a leaf spring that supports the shield 7 on the outer periphery of the contacts 3.

In this configuration, each end 3a of the contact 3 is formed by a spring ring 6 disposed on the outer periphery of both ends of the contact 3.
3b, the contact portions 1a of the first conductor 1 and the contact portions 2a of the second conductor 2 are connected by applying a contact pressure thereto.

[0004] The sliding contact connecting device thus configured is used for connecting a conductor of a connecting portion of a gas insulated switchgear or a unit of a gas insulated power transmission line formed to a predetermined length. In this configuration, it is possible to easily assemble and to cope with expansion and contraction of the conductor due to a temperature change during operation of the apparatus.

[0005]

In the above-mentioned conventional structure, the contact portions 1a and 2a of the first conductor 1 and the second conductor 2 in which the conductor ends are provided with steps to form the contact portions are opposed to each other. hand,
This is a configuration in which the contact portions 3a and 3b at both ends of the contact 3 are in contact with each other, and the length of the contact is long.
When constructing a gas insulated switchgear or the like, there is a problem that the connecting portion becomes longer and the device becomes larger. In order to configure a device having a large current capacity with this configuration, the contact 3
It is necessary to take measures such as increasing the contact area with the conductor and increasing the contact pressure, and the size of the gas-insulated switchgear using the same is also increased.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has as its object to provide a sliding contact connection device capable of supplying a large current with a small size without making the length too long. It is assumed that.

[0007]

According to a first aspect of the present invention, there is provided a sliding contact connection device, wherein an end portion of a first conductor having a contact surface formed with a step on the outer periphery of the end portion has an end portion. Are formed in a cylindrical shape, each conductor inserted into the end of the second conductor whose end inner peripheral surface is a contact surface and arranged so that the contact surfaces are opposed to each other, and the inner peripheral surface of the end of the second conductor An intermediate portion on the inner peripheral side in a state where it is radially arranged with respect to the central axis in the axial direction of the contact surface of the contact surface, and a contact portion that contacts the contact surface of the second conductor at one end on the outer peripheral side in the arranged state. A contact portion that contacts the contact surface of the first conductor, and a mounting portion of a spring member that applies a contact pressure to each contact portion at the other end portion, and is mounted on an end portion of the second conductor by the mounting member. Contact with each contact by a plurality of contacts and a spring ring with a coil spring formed in a ring shape at the end of the contact Those configured as a force is applied.

According to a second aspect of the present invention, there is provided a sliding contact connection device wherein the first conductor and the second conductor are concentrically formed on the bottom of the contact surface on the inner surface of the end of the second conductor. And a guide ring for positioning.

According to a third aspect of the present invention, there is provided a sliding contact connection device, wherein the end of the first conductor having a contact surface formed with a step on the outer periphery of the end is formed in a cylindrical shape. Each conductor inserted into the end of the second conductor whose inner peripheral surface is a contact surface and arranged so that the contact surfaces face each other, and the axial direction of the contact surface on the outer periphery of the end of the first conductor Radially arranged with respect to the central axis, and a contact portion that contacts the contact surface of the second conductor at one end on the outer peripheral side in the arranged state and a first conductor at an intermediate portion on the inner peripheral side in the arranged state. Forming a contact portion that contacts the contact surface,
At the other end, a mounting portion of a spring member for applying a contact pressure to each contact portion is formed, a plurality of contacts mounted on the first conductor end by the mounting member, and a coil mounted on the spring member mounting portion of the contact. The spring is formed in such a manner that a contact pressure is applied to a contact portion of each contact by a spring ring having a ring shape.

According to a fourth aspect of the present invention, there is provided a sliding contact connection device, wherein the first conductor and the second conductor are concentric with a stepped portion of an outer peripheral contact surface of the first conductor. It is provided with a guide ring for positioning in a shape.

According to a fifth aspect of the present invention, there is provided a sliding contact connection device, wherein an end of the first conductor having a contact surface formed with a step on the outer periphery of the end is formed in a cylindrical shape. Each conductor inserted into the end of the second conductor whose inner peripheral surface is a contact surface and arranged so that the contact surfaces face each other, and the axial direction of the contact surface on the outer periphery of the end of the first conductor Radially arranged with respect to the central axis, and a contact portion that contacts the contact surface of the second conductor at one end on the outer peripheral side in the arranged state and a first conductor at an intermediate portion on the inner peripheral side in the arranged state. Forming a contact portion that contacts the contact surface,
At the other end, a mounting groove of a spring member for applying a contact pressure to each contact portion is formed, and the plurality of contacts mounted on the first conductor end by the mounting member are concentric with the first conductor and the second conductor. Guide ring and one end is supported by the guide ring,
The other end is configured such that a contact pressure is applied to the contact portion of each contact by a plurality of plate springs inserted into the spring member mounting grooves of the contact.

According to a sixth aspect of the present invention, in the sliding contact connection device, the spring member for applying a contact pressure to the contact portion of each contact of the fifth aspect is constituted by two leaf springs. .

According to a seventh aspect of the present invention, there is provided a sliding contact connecting device comprising a U-shaped spring member for applying a contact pressure to a contact portion of each contact according to the fifth aspect. It is.

According to an eighth aspect of the present invention, in the sliding contact connection device, the end of the first conductor having the contact surface formed with a step on the outer periphery of the end is formed in a cylindrical shape. Each conductor inserted into the end of the second conductor whose inner peripheral surface is a contact surface and arranged so that the contact surfaces face each other, and the axial direction of the contact surface on the outer periphery of the end of the first conductor Radially arranged with respect to the central axis, and a contact portion that contacts the contact surface of the second conductor at one end on the outer peripheral side in the arranged state and a first conductor at an intermediate portion on the inner peripheral side in the arranged state. A contact portion that contacts the contact surface is formed, a mounting seat of a spring member that applies a contact pressure to each contact portion is formed at the other end, and a plurality of contacts mounted on the first conductor end by the mounting member. A guide ring in which the first conductor and the second conductor are concentrically positioned, and a spring seat is provided on the side surface of the ring; A plurality of coil springs mounted between the mounting seat of the ring spring seat and contact is obtained by configured to provide contact pressure on each contact.

In a slidable contact connection device according to a ninth aspect of the present invention, the end of the first conductor having a contact surface formed by providing a step on the outer periphery of the end has a cylindrical end. Each conductor inserted into the end of the second conductor whose inner peripheral surface is a contact surface and arranged so that the contact surfaces face each other, and the axial direction of the contact surface on the outer periphery of the end of the first conductor Radially arranged with respect to the central axis, a support groove of a spring member is formed at one end of the arranged state, and a contact portion that contacts the contact surface of the second conductor at an intermediate portion on the outer peripheral side of the arranged state. A contact portion that forms a contact portion that contacts the contact surface of the first conductor at the other end on the inner peripheral side in the arranged state, and a contact member attached to an end portion of the contact surface of the first conductor by a mounting member, The conductor and the second conductor are positioned concentrically,
A guide ring having a ring-shaped support portion for supporting the contact at a predetermined position on a side surface thereof; and a plate-like spring having one end supported by the first conductor and the other end inserted into a support groove at one end of the contact. Thus, a contact pressure is applied to the contact portion of each contact.

According to a tenth aspect of the present invention, in the sliding contact connection device, the spring member according to the ninth aspect is provided with a spring portion radially corresponding to the arrangement of the contacts on the outer periphery of the disk-shaped support portion, The spring portion is formed in an L-shaped bent shape.

According to the eleventh aspect of the present invention, in the sliding contact connection device, the end of the first conductor having a contact surface formed with a step on the outer periphery of the end is formed in a cylindrical shape. Each conductor inserted into the end of the second conductor whose inner peripheral surface is a contact surface and arranged so that the contact surfaces face each other, and the axial direction of the contact surface on the outer periphery of the end of the first conductor Radially arranged with respect to the central axis, a support hole of a spring member is formed at one end of the arranged state, and a contact portion that contacts the contact surface of the second conductor at an intermediate portion on the outer peripheral side in the arranged state. Forming a contact portion in contact with the contact surface of the first conductor at the other end on the inner peripheral side in the arranged state,
A contact mounted on the end of the contact surface of the first conductor by the mounting member, a first conductor and a second conductor are concentrically positioned, and a ring-shaped side supporting the contact in a predetermined position on the side surface. The guide ring formed by the support portion, one is supported by the first conductor, and the other is configured such that the contact pressure is applied to the contact portion of each contact by a torsion spring inserted into the support hole of the contact. is there.

According to a twelfth aspect of the present invention, in the sliding contact connection device, the end of the first conductor having a contact surface formed by providing a step on the outer periphery of the end has a cylindrical end. Each conductor inserted into the end of the second conductor whose inner peripheral surface is a contact surface and arranged so that the contact surfaces face each other, and the axial direction of the contact surface on the outer periphery of the end of the first conductor A contact is formed radially with respect to the central axis, and a spring member mounting seat is formed on the inner peripheral side of the disposed one end, and a contact portion that contacts the contact surface of the second conductor at an intermediate portion on the outer peripheral side in the disposed state. Forming a contact portion to be in contact with the contact surface of the first conductor at the other end on the inner peripheral side in a state arranged with the portion, a contact member attached to the end of the contact surface of the first conductor by a mounting member, A guide in which a first conductor and a second conductor are concentrically positioned and a ring-shaped support portion is formed on a side surface to support the contact at a predetermined position. The contact pressure is applied to the contact portion of the contact by a coil spring formed in a coil shape mounted for each contact between the inner periphery of the one end where the contact is disposed and the outer peripheral surface of the end of the first conductor. It is configured to be given.

According to a thirteenth aspect of the present invention, in the sliding contact connection device, a first conductor is provided in which a step is provided on an outer periphery of an end to form a contact surface and a mounting portion of a spring member is formed at the end. Each conductor, the end of which is formed in a cylindrical shape, the inner peripheral surface of the end is inserted into the end of the second conductor serving as the contact surface, and each of the conductors is arranged in a state where the contact surfaces face each other, A state in which the contact portion that is in contact with the contact surface of the second conductor is arranged at an intermediate portion on the outer peripheral side in the arranged state radially with respect to the central axis in the axial direction of the contact surface on the outer periphery of the end of one conductor. A contact portion that is in contact with the contact surface of the first conductor is formed at the other end on the inner peripheral side of the first conductor, and a contact member attached to an end portion of the contact surface of the first conductor by a mounting member, A guide ring in which the two conductors are positioned concentrically and a ring-shaped support portion is formed on the side surface to support the contact at a predetermined position; A spring portion is radially provided on the outer periphery of the support portion in correspondence with the arrangement of the contacts, and the spring portion is formed of a U-shaped spring member bent into an L shape, and arranged at one end of each contact. A U-shaped spring portion of a spring member is inserted between the inner peripheral side and the end outer peripheral surface of the first conductor to apply a contact pressure to the contact portion of the contact.

In the sliding contact connection device according to a fourteenth aspect of the present invention, the end of the first conductor having a contact surface formed by providing a step on the outer periphery of the end has a cylindrical end. Each conductor inserted into the end of the second conductor whose inner peripheral surface is a contact surface and arranged so that the contact surfaces face each other, and the axial direction of the contact surface on the outer periphery of the end of the first conductor Radially arranged with respect to the central axis, and a contact portion that contacts the contact surface of the second conductor at one end on the outer peripheral side in the arranged state and a first conductor at an intermediate portion on the inner peripheral side in the arranged state. Forming a contact portion that is in contact with the contact surface, forming a mounting groove of a spring member that applies a contact pressure to each contact portion at the other end, a plurality of contacts mounted on the first conductor end by the mounting member, A guide ring for concentrically positioning the first conductor and the second conductor, and one end supported by the guide ring, and an intermediate portion formed into a chevron. The top of the chevron is formed higher than the position of the inner circumference of the second conductor, and the other ends of the plurality of leaf springs inserted into the spring member mounting grooves of the contactor, and the end of the first conductor are the second end. When it is inserted into the end of the two conductors, it is configured such that a contact pressure is applied to the contact portion of each contact by pressing the mountain-shaped top of the leaf spring.

In the sliding contact connecting device according to a fifteenth aspect of the present invention, the end of the first conductor having a contact surface formed by providing a step on the outer periphery of the end has a cylindrical end. Each conductor inserted into the end of the second conductor whose inner peripheral surface is a contact surface and arranged so that the contact surfaces face each other, and the axial direction of the contact surface on the outer periphery of the end of the first conductor Radially arranged with respect to the central axis, and a contact portion that contacts the contact surface of the second conductor at one end on the outer peripheral side in the arranged state and a first conductor at an intermediate portion on the inner peripheral side in the arranged state. Forming a contact portion that is in contact with the contact surface, forming a mounting portion of a spring member that applies a contact pressure to each contact portion on the other end side on the outer peripheral side, and forming a plurality of contacts mounted on the first conductor end by the mounting member. And a guide ring for concentrically positioning the first conductor and the second conductor, and one end fixed to the outer periphery of the contact, A plurality of plate-shaped spring members formed so that the top of the first conductor is formed in a mountain shape higher than the inner circumferential position of the second conductor, and the other end is attached to the other end of the contact. When the end of the spring member is inserted into the end of the second conductor, the top of the chevron of the spring member is pressed to apply a contact pressure to the contact portion of each contact.

In a sliding contact connecting device according to a sixteenth aspect of the present invention, the end of the first conductor having a contact surface formed by providing a step on the outer periphery of the end is formed in a cylindrical shape. Each conductor inserted into the end of the second conductor whose inner peripheral surface is a contact surface and arranged so that the contact surfaces face each other, and the axial direction of the contact surface on the outer periphery of the end of the first conductor Radially arranged with respect to the central axis, and a contact portion that contacts the contact surface of the second conductor at one end on the outer peripheral side in the arranged state and a first conductor at an intermediate portion on the inner peripheral side in the arranged state. A contact portion that contacts the contact surface is formed, a mounting seat for a spring member that applies a contact pressure to each contact portion is provided at the other end on the outer peripheral side, and a mounting portion for a pressing lever of the spring member is formed on the outer peripheral side, and mounted. A plurality of contacts attached to the first conductor end by members, and a guide for concentrically positioning the first conductor and the second conductor A coil spring having a height higher than the inner circumferential position of the second conductor is mounted on a mounting seat of the spring member of the contactor, and a spring member having a pressing member disposed on an upper surface thereof is configured; When the end of the conductor is inserted into the end of the second conductor, the spring portion is pressed to apply a contact pressure to the contact portion of each contact.

According to a seventeenth aspect of the present invention, there is provided a sliding contact connecting device, wherein the first conductor contact surface and the second conductor have the sliding contact according to the first to eighth and fourteenth to sixteenth aspects. The surface is silver-plated, and the thickness of silver plating applied to the contact surface of the second conductor is smaller than the thickness of silver plating applied to the contact surface of the first conductor.

The sliding contact connecting device according to claim 18 of the present invention is configured such that the contact surfaces of the first conductor and the second conductor are silver-plated. The thickness of the silver plating applied to the contact surface of the second conductor is made smaller than the thickness of the silver plating applied to the contact surface of the first conductor.

According to a twelfth aspect of the present invention, in the sliding contact connection device, the end of the second conductor according to any one of the second to eighteenth aspects is formed by a cylindrical member having a diameter larger than the diameter of a portion other than the end. The sliding contact portion is formed by forming a projection on the outer peripheral end surface so as not to concentrate the electric field and connecting to the conductor end.

[0026]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 1 and 2 show the configuration of the sliding contact connection device according to the first embodiment. FIG. 1 is a cross-sectional view of the sliding contact connection device, and FIG. 2 is a cross-sectional view taken along the line AA of FIG. In the figure, reference numeral 11 denotes a first conductor having a step at an end portion 11a and a surface serving as a contact surface, and 12 denotes an end portion 12a.
The second conductor a is provided with a contact surface on the inner periphery thereof, and is connected to the end 11a of the first conductor 11 while being inserted into the end 12a of the second conductor 12. A plurality 13 is radially arranged between the contact surface of the end 11a of the first conductor 11 and the end 12a of the second conductor 12, and each of the contact portions 11a and 1
2a, a contact portion 13b that contacts the contact surface of the end portion 12a of the second conductor on an outer peripheral side where one end is disposed, and a contact portion 13b that contacts the contact surface of the end portion 12a of the second conductor. A contact portion 13a that contacts the contact surface of the end portion 11a of the first conductor 11 is provided at an intermediate portion, and a mounting portion of a spring member that applies a contact pressure to the contact portions 13a and 13b is provided at the outer peripheral side of the other end. 1
Reference numeral 4 denotes a mounting member 14a for radially positioning and mounting the contacts 13, and a guide plate 1 for radially arranging the contacts 13.
Reference numeral 4b denotes a mounting member for the contact 13 comprising a spacer 14c for maintaining a space between the mounting member 14a and the guide plate 14b. Reference numeral 15 denotes a fixing bolt for fixing the mounting member 14. Reference numeral 16 denotes a spring ring which is formed by forming a coiled spring into a ring shape and is mounted on a spring member mounting portion of the contact 13 to apply a contact pressure to the contact portions 13a and 13b. 17 is the first conductor 11
A guide ring 18 made of an insulating member for positioning concentrically when the end 11a of the second conductor 12 is inserted into the inner diameter of the end 12a of the second conductor 12; 12a is a fixing bolt fixed to the inner peripheral surface. 1
Reference numeral 9 denotes a shield that surrounds the outer periphery of the insertion portion between the end 11a of the first conductor 11 and the end 12a of the second conductor 12, thereby avoiding electric field concentration on the surface.

In the sliding contact connection device thus constructed, the end 11a of the first conductor 11 is
Of the contact 13
Is mounted on the inner peripheral contact surface of the end portion 12a of the second conductor 12 by a mounting member 14 so as to be radially arranged with respect to the axis so as not to fall down. , And the contact 13 is
The contact portions 13a, 13
The contact force is applied to the contact portions 13a and 13b by the pressing force acting on the contact portions 13a and 13b. As for the contact pressure acting on the contact portions 13a and 13b, a larger contact pressure is obtained as the distance between the contact portions 13a and 13b is reduced, but the outer diameter of the end 11a of the first conductor 11 and the end 12a of the second conductor 12 are obtained. The distance between the contact portions 13a and 13b and the contact portion 13
a and the mounting position of the spring ring 16 are set.

For example, when the mounting position of the spring ring 16 and the interval between the contact portions 13a and the interval between the contact portions 13a and 13b are made equal, the pressing force of the contact portion 13b is equal to the pressing force of the spring ring 16, and Pressing force is at contact point 13b
The pressing force is twice as large as the pressing force. If the distance between the contact portion 13a serving as a fulcrum and the mounting portion of the spring ring 16 is made longer than the distance between the contact portion 13a and the contact portion 13b, the contact portion 1
3a, the pressing force of the contact portion 13b can be increased. Further, the contact resistance of the contact portion decreases as the contact pressure increases. However, if the contact pressure of the sliding portion increases, the contact surface may be worn away due to sliding. Therefore, in the configuration of FIG. 1, the distance between the contact portion 13a and the contact portion 13b, the distance between the contact portion 13a and the spring ring 16, and the pressing force of the spring ring 16 are adjusted so that the sliding contact point 13a has an appropriate contact pressure. Is determined.

When the sliding contact connecting device for connecting the conductors whose ends are brought into abutting state, such as a gas insulated switchgear, is constituted in this manner, the contact portion 13a and the contact portion 13a can be contacted without increasing the pressing force of the spring ring 16 too much. The contact pressure of the portion 13b can be increased, and the one having a large current capacity can be made small. Further, the contact surface of the end portion 11a of the first conductor 11 is inserted into the contact surface of the end portion 12a of the second conductor 12, and the length of the contact is reduced as compared with the conventional configuration. Therefore, the sliding contact connection device can be configured to be short. In addition, the guide ring 17 is attached, the concentricity at the time of connection between the first conductor 11 and the second conductor 12 becomes accurate, and the contact pressure of each contact portion is applied uniformly.

Embodiment 2 FIG. Embodiment 2 is different from Embodiment 1 in that the contact is mounted on the second conductor, whereas the contact is mounted on the first conductor. The configuration is shown in FIG. In the figure, reference numeral 21 denotes a first conductor provided with a step at an end 21a and having a surface as a contact surface, and reference numeral 22 denotes a second conductor provided with a contact surface on an inner peripheral portion of the end 22a. 2
A plurality 3 is disposed between the contact surface of the end 21a of the first conductor 21 and the end 22a of the second conductor 22 radially with respect to the center axis in the axial direction of the contact surface. A contact that connects between the surfaces, a contact portion 23b that contacts the contact surface of the second conductor at one end on the outer peripheral side in the arranged state, and a contact portion 23b at the intermediate portion on the inner peripheral side in the arranged state. End 2 of conductor 21
A contact portion 23a that contacts the contact surface 1a and a mounting portion for a spring member that applies a contact pressure to the contact portions 23a and 23b are provided on the outer peripheral side of the other end. Reference numeral 24 denotes a mounting member that radially positions the plurality of contacts 23 and mounts it on the end surface of the first conductor 21. Reference numeral 25 denotes a fixing bolt that fixes the mounting member 24. Reference numeral 26 designates a coil-shaped spring formed in a ring shape and mounted on the spring member mounting portion of the contact 23 to form the contact portions 23a and 23a.
3b is a spring ring for applying a contact pressure to 3b. 27 denotes an end 21a of the first conductor 21 which is an end 22a of the second conductor 22.
A guide ring 28 made of an insulating member that is positioned concentrically when inserted into the second conductor 22 is a fixing bolt that fixes the guide ring 27 to the end 21 a of the second conductor 22. 29
Is a fixing bolt for fixing the end portion 22a of the second conductor to the end surface of the second conductor 22.

In the configuration of the second embodiment, a plurality of contacts 23 are mounted on the end 21a of the first conductor 21, and the contact 23b with the contact surface of the end 22a of the second conductor 21 is provided.
Slides, but the contact portion 23a, the contact portion 23b
Is the same contact pressure as in the first embodiment. Therefore, the contact portion 23b having a small contact pressure slides, and the pressing force of the spring ring 26 is set so as to be a contact pressure suitable for the contact portion 23b, which is smaller than that in the first embodiment. A large pressing force is set, and the contact resistance can be reduced as a whole. In this configuration, as in the case of the first embodiment, there is also an advantage that the one having a large current capacity can be made smaller and the length of the contact can be reduced as compared with the conventional configuration. It can be configured as a short connecting device. Further, similarly to the first embodiment, the guide ring 27 is attached to the first conductor 21.
The concentricity at the time of connection between the second conductor 22 and the second conductor 22 becomes accurate, and the contact pressure of each contact portion is uniformly applied.

Embodiment 3 FIG. The third embodiment has substantially the same configuration as that of the second embodiment, except that a spring member that applies a contact pressure to a contact portion of a contact is a plate-shaped spring member. FIG. 4 shows the configuration. In the figure, a first conductor 21, a second conductor 22, and a contact member mounting member 24 have the same configuration as in the second embodiment. Numeral 31 denotes a plurality of contact surfaces which are arranged radially with respect to the central axis in the axial direction between the contact surface of the end portion 21a of the first conductor 21 and the contact surface of the end portion 22a of the second conductor 22. Contact portion 31b that contacts the contact surface of the end 22a of the second conductor 22 at one end on the outer peripheral side in the arranged state, and an intermediate portion on the inner peripheral side in the arranged state The end 21a of the first conductor 21
The contact portion 31a is in contact with the contact surface, and a mounting portion for a spring member that applies a contact pressure to the contact portions 31a and 31b is provided on the outer peripheral side of the other end. Reference numeral 32 denotes a leaf spring of a spring member, which applies a contact pressure to the contact portions 31a and 31b of the contact element 31. 33 is the first conductor 21
Is a guide ring formed of an insulating member that is positioned concentrically when the end 21a of the second conductor 22 is inserted into the end 22a of the second conductor 22, and one end of the leaf spring 32 is supported. 34
Is a fixing bolt for the guide ring 33.

In the structure of the third embodiment, since the spring member uses a leaf spring, the mounting portion of the spring member is slightly longer than in the second embodiment, but the cost of the leaf spring 32 is low. Thus, a device having a large current capacity as a sliding contact connection device can be made small and inexpensive.

Embodiment 4 In the fourth embodiment, a spring member for applying a contact pressure to a contact portion of a contact is constituted by two leaf springs. The configuration is shown in FIG. 21, 2
Reference numerals 2, 24, 25, and 29 are the same members as in the third embodiment. Numeral 36 denotes a plurality of members arranged between the contact surface of the end portion 21a of the first conductor 21 and the end portion 22a of the second conductor 22 radially with respect to the central axis in the axial direction to connect the respective contact surfaces. A contact portion 36b that contacts the contact surface of the end portion 22a of the second conductor 22 at one end on the outer peripheral side in the arranged state, and a first contact portion at the middle portion on the inner peripheral side in the arranged state. A contact portion 36a that contacts the contact surface of the end portion 21a of the conductor 21 is provided, and a mounting portion of a spring member that applies a contact pressure to the contact portion 36a and the contact portion 36b is provided on the outer peripheral side of the other end. 37 is 2
A contact portion 3 of the contact 36
A contact pressure is applied to 6a and the contact portion 36b. 38 denotes an end 21a of the first conductor 21
A guide ring formed of an insulating member that is positioned concentrically when inserted into the support ring a. One end of the leaf spring 37 is supported. 34 is a fixing bolt for the guide ring 38.

The structure of the fourth embodiment is similar to that of the third embodiment.
Since the spring member is composed of two leaf springs,
Since a spring material having a small plate pressure can be used, the amount of deflection can be increased as compared with the third embodiment, and the length of the mounting portion of the spring member can be set short to make the sliding contact connection device short.

Embodiment 5 In the fifth embodiment, a spring member for applying a contact pressure to a contact portion of a contact is formed by forming a plate-shaped spring material into a U-shape. FIG. 6 shows the configuration.
Reference numerals 21, 22, 24, 25, and 29 are the same members as in the third embodiment. A plurality of contacts 41 are arranged between the contact surface of the end 21a of the first conductor 21 and the end 22a of the second conductor 22 radially with respect to the central axis to connect the respective contact surfaces. And a contact portion 41b that contacts the contact surface of the end portion 22a of the second conductor 22 at one end on the outer peripheral side in the arranged state, and a first conductor 21 at an intermediate portion on the inner peripheral side in the arranged state. The contact portion 41a is in contact with the contact surface of the end portion 21a, and a mounting portion for a spring member that applies a contact pressure to the contact portion 41a and the contact portion 41b is provided on the outer peripheral side of the other end. Reference numeral 42 denotes a U-shaped spring member having a spring portion formed by molding a plate-shaped portion into a U-shape, and applying a contact pressure to the contact portions 41a and 41b at the ends of the contactor 41. 43 is an end 21 of the first conductor 21
A guide ring formed of an insulating member that is positioned concentrically when a is inserted into the end 22 a of the second conductor 22, and supports one end of the spring member 42. A fixing bolt 44 fixes the guide ring 43.

In the structure of the fifth embodiment, the spring member is formed by molding a plate-shaped material into a U-shape. By setting the length of the mounting portion to be short, the sliding contact connection device can be configured to be short.

Embodiment 6 FIG. Embodiment 6 is a coil spring in which a spring member for applying a contact pressure to a contact point of a contact is formed in a coil shape. FIG. 7 shows the configuration. Reference numerals 21, 22, 24, 25, and 29 are the same members as in the fifth embodiment. Reference numeral 46 denotes a plurality of members arranged between the contact surface of the end portion 21a of the first conductor 21 and the end portion 22a of the second conductor 22 radially with respect to the central axis in the axial direction to connect the respective contact surfaces. A contact portion 46b that contacts the contact surface of the end portion 22a of the second conductor 22 at one end on the outer peripheral side in the arranged state, and a first contact portion at the intermediate portion on the inner peripheral side in the arranged state. A contact portion 4 that contacts the contact surface of the end portion 21a of the conductor 21;
6a, a mounting portion for a spring member that applies a contact pressure to the contact portions 46a and 46b is provided on the outer peripheral side of the other end.
Reference numeral 47 denotes a coil spring formed in a coil shape, and applies a contact pressure to the contact portions 46a and 46b of the contact 46. Reference numeral 48 denotes a guide ring formed of an insulating member which is positioned concentrically when the end 21a of the first conductor 21 is inserted into the end 22a of the second conductor 22, so that the coil spring 47 can be mounted. Reference numeral 49 denotes a fixing bolt for the guide ring 48.

The structure of the sixth embodiment is similar to that of the fourth embodiment.
Since the spring member is composed of a coil spring as compared with the above, the amount of deflection can be increased, the variation in spring pressure is reduced, the mounting portion of the spring member is shortened, and the sliding contact connection device can be further shortened. .

Embodiment 7 In the seventh embodiment, the position of the spring member that applies the contact pressure of the contact inserted between the contact surface on the surface of the end of the first conductor and the contact surface on the inner surface of the end of the second conductor is set to the third position. This is a configuration in which one conductor is arranged on the end side.
FIG. 8 shows the configuration. In the figure, 22, 22a, 2
Numeral 9 is the same as the configuration of the second to sixth embodiments. Reference numeral 51 denotes a first conductor formed in a shape in which a step is provided at an end portion 51a to make the surface a contact surface, and a step is further provided to provide a mounting seat for a mounting member of a contact. Part 51a
Are arranged radially with respect to the central axis between the contact surface of the second conductor 22 and the contact surface of the end portion 22a of the second conductor 22 to connect the respective contact surfaces. A contact portion 52 in which a mounting groove is provided and which is in contact with the contact surface of the end portion 51a of the first conductor 51 at the other end on the inner peripheral side in the arranged state.
a, a second conductor 22 is provided at an intermediate portion on the outer peripheral side in the arranged state;
A contact portion 52b that comes into contact with the contact surface of the end 22a is provided. Reference numeral 53 denotes a contact 52 at the end 5 of the first conductor 51.
A mounting member 54 is mounted on the mounting seat 1a.
Fixing bolts. Reference numeral 55 denotes a contact part 52a and a contact part 5 which lift one end of the contact 52 in the outer peripheral direction.
This is a plate-shaped spring that applies a contact pressure to 2b. Reference numeral 56 denotes a spring member mounting seat for supporting one end of the plate-shaped spring 55 and fixing it to the end 51a of the first conductor 51. Reference numeral 57 denotes a fixing bolt. 5
Reference numeral 8 denotes a guide ring formed of an insulating member that is positioned concentrically when the end 51a of the first conductor 51 is inserted into the end 22a of the second conductor 22, and the other end of the contact 52. And a ring-shaped protruding portion is provided to support the projection. 59 is a fixing bolt for the guide ring 58.

The configuration of the seventh embodiment is similar to that of the first embodiment.
As compared with the configurations of Nos. 1 to 6, a leaf spring is used as a spring member and is disposed on the end 51a side of the first conductor 51. The leaf spring allows the contact element 52 to support the contact portion 52b as a fulcrum. The contact pressure is applied by the leverage operation, and the contact pressure is applied to the sliding contact portion 52b at the outer peripheral side intermediate portion serving as the fulcrum of the lever.
And the contact point 52a at the non-sliding end is reduced. In this configuration, the mounting portion of the spring member is slightly lengthened by using a plate-shaped spring. However, there is an advantage that the cost of the spring member 52 can be reduced and the sliding contact connection device can be configured inexpensively.

Embodiment 8 FIG. The eighth embodiment is substantially the same as the configuration of the seventh embodiment, except that a spring member is integrally formed on the outer periphery of a disk with a spring portion corresponding to each contact. 9 and 10 show the configuration.
9 is a sectional view of a sliding contact connection device according to an eighth embodiment, FIG. 10 shows a shape of a spring member, (a) is a front view,
(B) is a side view. 22, 29, 51, 5 in FIG.
Reference numerals 2, 53, 58, and 59 are the same members as in FIG. 8 of the seventh embodiment. Reference numeral 61 denotes a spring member. As shown in FIG. 10, spring portions 61a corresponding to the respective contacts are arranged around the disk, and the spring portion 61a is bent into an L shape as shown in a side view of FIG. It was formed into a shape. 62 is a holding plate for the spring member, and 63 is a fixing bolt.

The structure of the eighth embodiment is similar to that of the seventh embodiment.
The mounting length of the spring member 61 is shorter than that of the first embodiment, so that the sliding contact connection device can be configured to have a shorter length.

Embodiment 9 In the ninth embodiment, a torsion spring is used as a spring member for applying a contact pressure to a contact. The configuration is shown in FIG. In the figure, 22, 22,
a, 29, 58, and 59 are the same members as in the eighth embodiment. Reference numeral 71 denotes a first conductor having a step at the end 71a and having the surface as a contact surface, and 72 denotes a portion between the contact surface of the end 71a of the first conductor 71 and the end 22a of the second conductor 22. A plurality of contacts are arranged radially with respect to the central axis in the axial direction to connect between respective contact surfaces, and a mounting hole for a spring member is provided at one end, and the inner circumferential side of the arranged state is provided. The other end has a contact portion 72a in contact with the contact surface of the end portion 71a of the first conductor 71, and the middle portion on the outer peripheral side in the disposed state has a contact in contact with the contact surface of the end portion 22a of the second conductor 22. A portion 72b is provided. Reference numeral 73 denotes an end of the first conductor 71
A mounting member 74 is disposed on the contact surface of the contact surface 1a so as to be arranged radially with respect to the central axis, and a torsion spring 74 for applying a contact pressure to the contact portion of the contact 72 is supported by one end at the end of the first conductor. The other is connected to one end of the contact 72. 7
5 is a torsion spring mounting seat for supporting one of the torsion springs on the end face of the first conductor 71, and 76 is a fixing bolt for fixing the mounting member 73 and the torsion spring mounting seat 75.

The structure of the ninth embodiment is similar to that of the eighth embodiment.
Similarly, the spring portion is shortened, and the length can be reduced as the sliding contact connection device. Further, by using the torsion spring, a change in the spring constant is small, and a stable contact pressure can be applied to the contact.

Embodiment 10 FIG. In the tenth embodiment, a spring member for applying a contact pressure to a contact is a coil spring. FIG. 12 shows the configuration. In the figure, 22,
22a, 29, 58 and 59 are the same members as in the ninth embodiment. Reference numeral 81 denotes a first conductor having a step at the end 81a and having a surface serving as a contact surface, and a mounting seat for a spring member is provided at the end. A plurality 82 is arranged between the contact surface of the end portion 81a of the first conductor 81 and the contact surface of the end portion 22a of the second conductor 22 radially with respect to the central axis to connect between the respective contact surfaces. A contact is provided, and a mounting hole for a spring member is provided on the inner peripheral side of one end of the disposed state, and the end 81a of the first conductor 81 is in contact with the other end of the inner peripheral side of the disposed state. A contact portion 82a that contacts the surface and a contact portion 82b that contacts the contact surface of the end portion 22a of the second conductor 22 are provided at an intermediate portion on the outer peripheral side in the arranged state. 83 is a mounting member for arranging and mounting the contacts 82 radially on the contact surface of the end portion 81a of the first conductor 81, and 84 is a contact portion 82 of the contacts 82.
a, a coil spring for applying a contact pressure to the contact portion 82b, one of which is inserted into a mounting seat at the end 81a of the first conductor 81 and the other is mounted in a mounting hole at one end of the contact 82; I have. Reference numeral 85 denotes a fixing bolt for fixing the mounting member 83 to the end 81a of the first conductor 81.

In this configuration, since the spring member for applying the contact pressure to the contact portion of the contact element 82 is a coil spring, the accommodating portion for the spring member becomes unnecessary, and the length of the sliding contact connection device is reduced. 9 can be further shortened, and a device having a large current capacity can be made smaller.

Embodiment 11 FIG. In the eleventh embodiment, a spring member that applies a contact pressure to a contact is provided on the outer periphery of a disk with a spring portion corresponding to each contact, and is bent in the axial direction to form a U-shaped spring portion. Used. The configuration is shown in FIGS. 13 is a cross-sectional view of the sliding contact connection device, and FIGS. 14A and 14B are a front view and a side view, respectively. In the figure, 22, 22a, 29, 5
Reference numerals 8 and 59 are the same members as those in the above-described seventh to tenth embodiments. Reference numeral 91 denotes a first conductor provided with a step at an end portion 91a to serve as a contact surface, and a housing portion for a spring member is formed at the end portion. A plurality 92 is arranged radially with respect to the center line between the contact surface of the end portion 91a of the first conductor 91 and the contact surface of the end portion 22a of the second conductor 22 to connect between the respective contact surfaces. A contact portion 9 which is a contact and which is in contact with the contact surface of the end portion 91a of the first conductor 91 at the other end on the inner peripheral side in the arranged state;
2a, a second conductor 2 is provided at an intermediate portion on the outer peripheral side in the arranged state.
A contact portion 92b that contacts the contact surface of the second end 22a is provided. 93 is a mounting member for arranging and mounting the contact 92 radially with respect to the center line on the contact surface of the end portion 91a of the first conductor 91, and 94 is a spring member for applying a contact pressure to the contact portion of the contact 92. In addition, as shown in FIG. 14, a spring member provided with a U-shaped spring portion bent in the axial direction corresponding to the contact on the outer periphery of the disk portion. Reference numeral 95 denotes a fixing bolt for fixing the mounting member 93 and the spring member 94 to the end 91a of the first conductor 91.

In this configuration, since the spring member 94 is mounted between the contact 92 and the end 91a of the first conductor 91, the spring member housing is unnecessary, and the length is reduced as a sliding contact connection device. As in the case of the embodiment 110, it can be shorter than in the case of the embodiments 8 and 9.

Embodiment 12 FIG. In the twelfth embodiment, the contact pressure applied to the contactor is provided by the plate-shaped spring member so that the contact pressure required when the end of the first conductor is inserted into the end of the second conductor. It is what was constituted.
FIG. 15 shows the configuration. The configuration of FIG. 15 is the same as that of the third embodiment except for the portions 21, 22, and 2 except for the spring member.
4, 25, 29, 31, 33, and 34 are the same as the members shown in FIG. Reference numeral 96 denotes a plate-shaped spring which has an intermediate portion of a plate-shaped material formed in a mountain shape, is in contact with the guide ring 33, and is mounted between the guide ring 33 and the end of the plate-shaped material 31.

In this configuration, the end 21a of the first conductor 21
When the contact 31 and the plate-like spring 96 are mounted on the end portion 22a of the second conductor 22, the plate-like spring 96 is pressed toward the center by the end of the second conductor. The other end of the contact 31 is pressed so that the contact portion 31a is
1 is pressed against the contact surface of the end portion 21a, and the contact portion 31b is pressed.
Is pressed against the contact surface of the end portion 22a of the second conductor 22, and a contact force is applied to the second conductor 22 for connection.

With this configuration, the contact portion 31a and the contact portion 31b are formed by inserting the end 21a of the first conductor 21 to which each member is attached into the end 22a of the second conductor 22, and The chevron is inserted into the end 22a of the second conductor 22 so that a contact pressure is applied. Therefore, in the configuration of the first to eleventh embodiments, the contact pressure is applied from the beginning when the contact portion of the contact is inserted into the end of the second conductor. Since the contact pressure is applied from the time when the chevron portion of the spring member is inserted, the distance of sliding on the contact surface of the contact portion is shortened, and wear due to wear of the contact portion of the contact is reduced.

Embodiment 13 FIG. In the thirteenth embodiment, like the twelfth embodiment, a plate-shaped member spring is formed into a mountain shape and is mounted on the outer peripheral side where the contacts are arranged. FIG. 16 shows the configuration. In the figure, 21, 21a, 22,
Reference numerals 22a, 24, 25, and 29 are the same members as those in FIG. 102 is an end 21a of the first conductor 21
Are arranged radially with respect to the central axis between the contact surface of the second conductor 22 and the contact surface of the end portion 22a of the second conductor 22, and are contacts that connect between the respective contact surfaces. A contact portion 102a in contact with the contact surface of the end portion 21a of the first conductor 21 is provided at an intermediate portion on the inner peripheral side, and a contact surface of the end portion 22a of the second conductor 22 is provided at one end portion on the outer peripheral side in a disposed state. A contact portion 102b that comes into contact is provided, and a housing portion for a plate-shaped spring is formed on the arranged outer peripheral side. 103 is an inverted V-shaped plate-shaped spring mounted on the outer peripheral side where the contact 102 is disposed, 104 is the end 21a of the first conductor 21 inserted into the end 22a of the second conductor 22 This is a guide ring formed of an insulating member that is positioned concentrically when it is pressed, and has a ring-shaped protrusion so as to support the other end of the contact 102. Reference numeral 105 denotes a fixing bolt for the guide ring 104.

Also in this configuration, the contact portion 102a and the contact portion 102b are such that the end 21a of the first conductor 21 to which each member is attached is inserted into the end 22a of the second conductor 22,
The chevron of the leaf spring 103 is the end 22 a of the second conductor 22.
Since the contact pressure is applied to the contact 102, the sliding distance of the contact portion of the contact 102 is reduced as in the twelfth embodiment, and the wear of the contact portion is reduced. Since the spring is housed on the outer peripheral side where the contacts 102 are arranged, a spring member housing is unnecessary, and the length of the sliding contact connection device can be shortened as in the eleventh embodiment.

Embodiment 14 FIG. In the fourteenth embodiment, the spring member for applying the contact pressure to the contact having the configuration of the thirteenth embodiment is a coil spring. FIG. 17 shows the configuration. In the figure, 21, 21a, 22, 22a, 24,
25, 29, 104, and 105 are the same members as in the thirteenth embodiment. Reference numeral 106 denotes a plurality of members disposed between the contact surface of the end 21a of the first conductor 21 and the contact surface of the end 22a of the second conductor 22 radially with respect to the central axis in the axial direction. A contact portion 106a that contacts the contact surface of the end portion 21a of the first conductor 21 at an intermediate portion on the inner peripheral side in the disposed state, and a contact portion 106a that is on the outer peripheral side in the disposed state. A contact portion 106b that contacts the contact surface of the end portion 22a of the second conductor 22 is provided, and a spring member mounting seat is formed at one end on the outer peripheral side where the contact portion 106b is arranged. Reference numeral 107 denotes a coil spring that presses a contact to apply a contact pressure to a contact portion. Reference numeral 108 denotes a spring holding lever inserted between the end of the coil spring and the inner surface of the end 22a of the second conductor 22.

Also in this configuration, the contact portion 106a and the contact portion 106b are such that the end 21a of the first conductor 21 to which each member is attached is inserted into the end 22a of the second conductor 22,
Since the chevron of the spring holding lever 108 disposed on the end face of the coil spring 107 is inserted into the end 22a of the second conductor and a contact pressure is applied, the contact portion of the contact 106 similarly to the twelfth and thirteenth embodiments. The sliding distance is short, the wear of the contact portion is reduced, and the spring member 107,
Since the spring holding lever 108 is accommodated on the outer peripheral side where the contact 106 is disposed, a spring member accommodating portion is not required, and the length of the sliding contact connection device can be reduced similarly to the configuration of the thirteenth embodiment. Can be.

Embodiment 15 FIG. Embodiments 1 to 6, 12
The contact portion of the intermediate portion of the contact is in contact with the contact surface of the end surface of the first conductor, and the contact portion of the one end is in contact with the contact surface of the inner end surface of the second conductor. When the spring pressure of the spring member acts on the contact, the contact pressure of the contact portion that contacts the contact surface of the end portion of the first conductor, which is a fulcrum of this operation, is the end of the second conductor at one end. It is higher than the contact pressure of the contact portion that contacts the contact surface of the portion. The contact portion in the case of a gas insulated switchgear or the like is usually plated with silver. For the contact portions as in Embodiments 1 to 6 and 12 to 14, when the contact resistance is measured with the silver plating thickness being 50 μm and 10 μm and the contact pressure being the same, the contact resistance value in the case of 10 μm is obtained. On the other hand, a result showing a value of about ／ of the contact resistance value in the case of 50 μm was obtained, and the smaller the plating thickness, the lower the contact resistance. The contact resistance decreases as the contact pressure increases. Embodiment 1
The contact pressure of the contact portion of the contact in the case of 6, 12 to 14 is
The contact pressure of the contact portion with the contact surface of the end of the first conductor of the contact is high, and the contact pressure of the portion in contact with the contact surface of the end of the second conductor is low. The silver plating thickness of the contact surface of the first conductor where the contact pressure is high is 50
The contact surface of the second conductor, whose contact pressure is reduced by applying a thick plating of about μm, becomes a contact part in which the contact resistance of both contact parts is balanced by making the contact surface of the second conductor thinner about 10 μm.

From the above, Embodiments 1 to 6, 1
By increasing the silver plating thickness of the contact surface on the end surface of the first conductor having the configuration of 2 to 14, and decreasing the silver plating thickness of the contact surface on the inner surface of the end of the second conductor, the contact resistance is reduced. A balanced contact is obtained.

Embodiment 16 FIG. In the configurations of the seventh to eleventh embodiments, the spring member is arranged on the end portion side of the first conductor, and the contact pressure of the intermediate portion of the contact that becomes a fulcrum of this operation when the spring member acts on the contact. The contact portion where the contact height increases is in contact with the contact surface on the inner surface of the end of the second conductor, and the contact portion on one end is in contact with the contact surface on the end of the first conductor. As described in the fifteenth embodiment, the silver plating of the contact portion is such that, when the contact pressure is constant, the thinner the silver plating thickness is, the lower the contact resistance is, and in the case of the seventh to eleventh embodiments, When the silver plating thickness of the contact surface at the end of the first conductor is smaller than the silver plating thickness at the contact surface at the end of the second conductor, a contact portion in which the contact resistance of both contact portions is balanced is obtained.

Thus, in the configurations of the seventh to eleventh embodiments, the silver plating thickness of the contact surface at the end of the first conductor is larger than the silver plating thickness of the contact surface at the end of the second conductor. By making the contact thinner, a contact portion having a balanced contact resistance can be obtained.

Embodiment 17 FIG. 3 to 9 of Embodiments 2 to 14. Ends of the second conductors 11 to 13 and 15 to 17 have a configuration in which a contact surface is formed on the inner diameter side, and the conductor portion 2
The diameter of the end portion 22a is slightly larger than the diameter of the second end 22a. With such a configuration, electric field concentration can be avoided by making the corners of the end portions of the second conductor round so that electric field concentration does not occur, and a separately provided shield can be omitted. In addition, the diameter of the sliding contact portion can be increased, and the sliding contact portion having a large current capacity can be configured with a small diameter.

[0062]

According to a first aspect of the present invention, there is provided a sliding contact connection device comprising: a first conductor having a step formed on an outer periphery of an end to form a contact surface; A second conductor whose peripheral surface serves as a contact surface, the inner surface of the contact surface of the second conductor, radially arranged with respect to the central axis, the second conductor at one end on the outer peripheral side of the arranged state A spring member that forms a contact portion that is in contact with the contact surface of the first conductor at an intermediate portion on the inner peripheral side in a state where the contact portion is in contact with the contact surface, and applies a contact pressure to each contact portion at the other end portion And a plurality of contacts mounted on the end of the second conductor by the mounting member, and a contact pressure applied to the contact of each contact by a spring member formed in a ring shape at the end of the contact. Is provided so that the sliding contact connection device with a large current capacity is smaller than the conventional configuration. Kill.

According to a second aspect of the present invention, there is provided a sliding contact connection device, wherein the first conductor and the second conductor are concentrically formed on the bottom of the contact surface on the inner surface of the end of the second conductor. Is provided, the center lines of the conductors to be connected coincide with each other, and a sliding contact connection device having a uniform contact portion contact state can be obtained.

According to a third aspect of the present invention, there is provided a sliding contact connection device, wherein a first conductor having a contact surface formed by providing a step on an outer periphery of an end portion and a cylindrical end portion are provided. The second conductor is a contact surface, and the first conductor is radially arranged on the outer periphery of the contact surface with respect to the central axis in the axial direction with respect to the central axis. Attachment of a spring member that forms a contact portion that contacts the contact surface of the first conductor at an intermediate portion on the inner peripheral side in a state where the contact portion is in contact with the contact portion and that applies a contact pressure to each contact portion at the other end portion A plurality of contacts are formed on the first conductor end by the mounting member, and a contact pressure is applied to the contact portion of each contact by the ring-shaped spring member mounted on the spring member mounting portion of the contact. Because it was configured to be
The sliding portion becomes the contact surface of the end of the second conductor having a small contact pressure, and the contact pressure at this portion is set to an appropriate value. Therefore, the effect of increasing the contact pressure as a whole and reducing the contact resistance is obtained. As a result, the sliding contact connection device having a large current capacity can be made small.

According to a fourth aspect of the present invention, there is provided a sliding contact connection device, wherein the first conductor and the second conductor are concentric with the stepped portion of the contact surface on the outer periphery of the end of the first conductor. Since the guide rings for positioning in the shape are provided, the center lines of the conductors to be connected coincide with each other, and a sliding contact connection device with a uniform contact portion contact state can be obtained.

According to a fifth aspect of the present invention, there is provided a sliding contact connection device comprising: a first conductor having a step formed on an outer periphery of an end to form a contact surface; Are arranged radially with respect to the central axis in the axial direction of the outer periphery of the contact surface of the first conductor, and the second conductor is in contact with one end on the outer peripheral side in the arranged state. Attachment of a spring member that forms a contact portion that contacts the contact surface of the first conductor at an intermediate portion on the inner peripheral side in a state where the contact portion is in contact with the contact portion and that applies a contact pressure to each contact portion at the other end portion A groove is formed, a plurality of contacts mounted on the first conductor end by the mounting member, a guide ring for concentrically positioning the first conductor and the second conductor, and one end supported by the guide ring, The contact pressure is applied to the contact portion of each contact by a plurality of plate-like springs whose other ends are inserted into the spring member mounting grooves of the contact. Since it is configured as a spring member can be constructed inexpensively, it can be shortened becomes inexpensively configured as a sliding contact connection device.

In the sliding contact connection device according to the sixth aspect of the present invention, the spring members for applying the contact pressure to the contact portions of the respective contacts of the fifth aspect are each constituted by two leaf springs. A spring material having a thin plate pressure can be used, and the amount of flexure can be increased to shorten the length of the mounting portion of the spring member, thereby making the sliding contact connection device short.

According to a seventh aspect of the present invention, there is provided a sliding contact connection device comprising a spring member for applying a contact pressure to a contact portion of each contact of the fifth aspect formed in a U-shape. Therefore, the amount of flexure as the spring member is increased, the length of the mounting portion of the spring member is shortened, and the sliding contact connection device can be shortened.

The sliding contact connecting device according to claim 8 of the present invention is characterized in that a first conductor having a contact surface formed by providing a step on the outer periphery of the end portion and a cylindrical end portion are formed on the inner peripheral surface. Are arranged radially with respect to the central axis in the axial direction of the outer periphery of the contact surface of the first conductor, and the second conductor is in contact with one end on the outer peripheral side in the arranged state. Attachment of a spring member that forms a contact portion that contacts the contact surface of the first conductor at an intermediate portion on the inner peripheral side in a state where the contact portion is in contact with the contact portion and that applies a contact pressure to each contact portion at the other end portion Forming a seat, a plurality of contacts mounted on the first conductor end by the mounting member, the first conductor and the second conductor are positioned concentrically, and a spring seat protruding in a ring shape on the side surface. Each contact is provided by a guide ring provided and a plurality of coil springs mounted between the spring seat of the guide ring and the mounting seat of the contact. Since it is configured to provide a tactile pressure, the variation of the spring pressure is reduced, the mounting portion of the spring member can be configured even shorter as a sliding contact connection device can be shortened.

According to a ninth aspect of the present invention, there is provided a sliding contact connection device comprising: a first conductor having a step formed on an outer periphery of an end to form a contact surface; The second conductor to be the contact surface, and radially arranged with respect to the central axis in the axial direction of the outer periphery of the contact surface of the first conductor, formed a support groove of a spring member at one end arranged, and arranged. A contact portion that contacts the contact surface of the first conductor is formed at the other end portion on the inner peripheral side where the contact portion that contacts the contact surface of the second conductor is formed at the intermediate portion on the outer peripheral side of the state, and is attached. A ring-shaped support that concentrically positions the contact mounted on the end of the contact surface of the first conductor by the member, the first conductor and the second conductor, and supports the contact in a predetermined position on the side surface Each of the guide rings is formed by a plate-shaped spring having one end supported by the first conductor and the other end inserted into a support groove at one end of the contactor. Since the contact pressure is applied to the contact part of the tentacle, the contact part with low contact pressure does not slide, and the spring member is a plate-shaped member, which reduces the cost of the spring member and reduces the sliding contact. It can be inexpensively configured as a connection device.

According to a tenth aspect of the present invention, in the sliding contact connection device, the spring member according to the ninth aspect is provided with a spring portion radially corresponding to the arrangement of the contacts on the outer periphery of the disk-shaped support portion. Since the spring portion is formed in a shape bent in the axial direction, the length of the spring member is shortened, so that the sliding contact connection device can be shortened.

The sliding contact connecting device according to the eleventh aspect of the present invention provides a first conductor having a step formed on the outer periphery of the end to form a contact surface, and a cylindrical end formed on the inner conductor. The second conductor to be a contact surface, and arranged radially with respect to the central axis in the axial direction of the outer periphery of the contact surface of the first conductor, and formed a support hole of a spring member at one end where arranged, and arranged. A contact portion that contacts the contact surface of the first conductor is formed at the other end portion on the inner peripheral side where the contact portion that contacts the contact surface of the second conductor is formed at the intermediate portion on the outer peripheral side of the state, and is attached. A ring-shaped support that concentrically positions the contact mounted on the end of the contact surface of the first conductor by the member, the first conductor and the second conductor, and supports the contact in a predetermined position on the side surface Each contact is made by a torsion spring inserted into the support hole of the contact and the other being supported by the first conductor and the other being supported by the first conductor. Because contact pressure at the contact portion of the structure as given, can be stable contact pressure to the set can contact the child to be less variation in the spring constant is added.

According to a twelfth aspect of the present invention, there is provided a sliding contact connection device comprising: a first conductor having a contact surface formed by providing a step on the outer periphery of an end; Are arranged radially with respect to the central axis in the axial direction of the outer periphery of the contact surface of the first conductor, and a mounting seat for the spring member is formed on the inner peripheral side of the arranged one end. The contact portion that contacts the contact surface of the first conductor at the other end on the inner peripheral side of the disposed state and the contact portion that contacts the contact surface of the second conductor at the intermediate portion on the outer peripheral side of the disposed state. A ring formed and mounted on a contact surface end of the first conductor by a mounting member, and a ring for positioning the first conductor and the second conductor concentrically and supporting the contact at a predetermined position on a side surface. A guide ring having a shape of a support, and one contact between the inner peripheral side at one end where the contact is disposed and the outer peripheral surface at the end of the first conductor. Since the contact pressure is applied to the contact portion of the contact by the spring member formed in a coil shape, the housing portion of the spring member is not required, and the length of the sliding contact connection device can be reduced. it can.

According to a thirteenth aspect of the present invention, there is provided a sliding contact connecting device, wherein a step is provided on an outer periphery of an end to form a contact surface, and a first conductor having a spring member mounting portion formed at an end. ,
The end portion is formed in a cylindrical shape, and the second conductor whose inner peripheral surface is a contact surface, and radially arranged with respect to the central axis in the axial direction of the outer periphery of the contact surface of the first conductor, in a state of being arranged A contact portion that contacts the contact surface of the first conductor is formed at the other end on the inner periphery side in a state where the contact portion that contacts the contact surface of the second conductor is disposed at the intermediate portion on the outer periphery side, and the mounting member is used. A contact attached to the end of the contact surface of the first conductor, the first conductor and the second conductor are positioned concentrically, and a ring-shaped support portion is formed on the side surface to support the contact in a predetermined position. And a spring member radially provided in correspondence with the arrangement of the contacts on the outer periphery of the disk-shaped support portion, and the spring portion is formed of a U-shaped spring member bent in the axial direction. A U-shaped spring portion of a spring member is inserted between the inner peripheral side disposed at one end of the Since it is configured to provide a contact pressure to the contact portion, housing portion of the spring member becomes unnecessary, it is possible to configure shorten the length of the sliding contact connection device.

A sliding contact connection device according to a fourteenth aspect of the present invention provides a first conductor having a contact surface formed by providing a step on the outer periphery of an end portion, and a cylindrical portion having an end portion. Is arranged radially with respect to the central axis in the axial direction of the outer periphery of the contact surface of the first conductor, and the second conductor is in contact with one end on the outer peripheral side in the arranged state. Attachment of a spring member that forms a contact portion that contacts the contact surface of the first conductor at an intermediate portion on the inner peripheral side in a state where the contact portion is in contact with the contact portion and that applies a contact pressure to each contact portion at the other end portion A groove is formed, a plurality of contacts mounted on the first conductor end by the mounting member, a guide ring for concentrically positioning the first conductor and the second conductor, and one end supported by the guide ring, The middle part is formed in a chevron, the top of the chevron is formed higher than the position of the inner circumference of the second conductor, and the other end is a spring member of the contact. A plurality of leaf springs inserted into the receiving grooves, and when the end of the first conductor is inserted into the end of the second conductor, the top of the chevron of the leaf spring is pressed and Since the contact portion is configured to be able to apply a contact pressure, when the end of the first conductor is inserted into the end of the second conductor, the sliding length of the contact portion of the contact is small. A device is obtained.

According to a fifteenth aspect of the present invention, there is provided a sliding contact connection device comprising: a first conductor having a step formed on an outer periphery of an end to form a contact surface; Is arranged radially with respect to the central axis in the axial direction of the outer periphery of the contact surface of the first conductor, and the second conductor is in contact with one end on the outer peripheral side in the arranged state. A spring that forms a contact portion that is in contact with the contact surface of the first conductor at an intermediate portion on the inner peripheral side in a state where the contact portion is in contact with the surface and that applies a contact pressure to each contact portion on the other end side on the outer peripheral side A plurality of contacts that form a mounting portion of the member and are mounted on the first conductor end by the mounting member; a guide ring that concentrically positions the first conductor and the second conductor; Side, the top of the middle part is formed in a chevron shape higher than the position of the inner circumference of the second conductor, and the other end is formed as the other end of the contact. And a plurality of leaf springs mounted in such a manner that when the end of the first conductor is inserted into the end of the second conductor, the chevron-shaped top of the spring member is pressed to contact the contact portion of each contact. Since it is configured to apply pressure, the housing portion of the spring member is unnecessary in the length direction, and the sliding distance of the contact portion when inserting the end of the first conductor into the end of the second conductor is reduced. It is possible to obtain a sliding contact connection device in which wear due to sliding is reduced.

A sliding contact connection device according to a sixteenth aspect of the present invention provides a first conductor having a contact surface formed by providing a step on the outer periphery of an end portion, and a cylindrical portion having an end portion. Is arranged radially with respect to the central axis in the axial direction of the outer periphery of the contact surface of the first conductor, and the second conductor is in contact with one end on the outer peripheral side in the arranged state. A spring that forms a contact portion that contacts the contact surface of the first conductor at an intermediate portion on the inner peripheral side where the contact portion that contacts the surface is disposed, and applies a contact pressure to each contact portion at the other end portion on the outer peripheral side. Providing a mounting seat for the member, forming a mounting portion of the pressing lever of the spring member on the outer peripheral side, a plurality of contacts mounted on the first conductor end by the mounting member, the first conductor and the second conductor A guide ring concentrically positioned and a height higher than the inner circumferential position of the second conductor in the mounting seat of the spring member of the contactor. The spring portion is mounted with an ill-shaped spring member, and constitutes a spring portion in which a pressing member is disposed on the upper surface, and the spring portion is pressed when the end of the first conductor is inserted into the end of the second conductor. Since it is configured to apply a contact pressure to the contact portion of each contact, the housing portion of the spring member is not required in the length direction, and when inserting the end of the first conductor into the end of the second conductor The sliding contact connecting device in which the sliding distance of the contact portion is short and wear is reduced is obtained.

A sliding contact connecting device according to a seventeenth aspect of the present invention provides the sliding surface of the first conductor and the sliding contact of the second conductor according to any one of the first to eighth and the fourteenth to sixteenth aspects. Since the surface is silver-plated and the thickness of silver plating applied to the contact surface of the second conductor is smaller than the thickness of silver plating applied to the contact surface of the first conductor, A contact portion with a good contact resistance is obtained.

The sliding contact connecting device according to claim 18 of the present invention is configured such that the contact surfaces of the first conductor and the second conductor are silver-plated. The thickness of the silver plating applied to the contact surface of the second conductor is made thinner than the thickness of the silver plating applied to the contact surface of the first conductor. A loose contact is obtained.

In the sliding contact connecting device according to claim 19 of the present invention, the end of the second conductor according to any one of claims 2 to 16 is formed by a cylindrical member having a diameter larger than that of the portion other than the end. Since the outer peripheral end face was formed so as not to concentrate the electric field by eliminating the protrusion and connected to the conductor end to form the sliding contact part,
The shield can be omitted, and the diameter of the contact portion can be increased, and the sliding contact connection device having a large current capacity can be reduced.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a configuration of a first embodiment according to the present invention.

FIG. 2 is a cross-sectional view of a contact portion of FIG.

FIG. 3 is a sectional view showing a configuration of a second embodiment according to the present invention.

FIG. 4 is a sectional view showing a configuration of a third embodiment according to the present invention.

FIG. 5 is a sectional view showing a configuration of a fourth embodiment according to the present invention.

FIG. 6 is a sectional view showing a configuration of a fifth embodiment according to the present invention.

FIG. 7 is a sectional view showing a configuration of a sixth embodiment according to the present invention.

FIG. 8 is a sectional view showing a configuration of a seventh embodiment according to the present invention.

FIG. 9 is a sectional view showing a configuration of an eighth embodiment according to the present invention.

FIG. 10 is a configuration diagram of a spring member according to an eighth embodiment.

FIG. 11 is a sectional view showing a configuration of a ninth embodiment according to the present invention.

FIG. 12 is a sectional view showing a configuration of a tenth embodiment according to the present invention.

FIG. 13 is a sectional view showing a configuration of an eleventh embodiment according to the present invention.

FIG. 14 is a configuration diagram of a spring member according to an eleventh embodiment.

FIG. 15 is a sectional view showing a configuration of a twelfth embodiment according to the present invention.

FIG. 16 is a sectional view showing a configuration of a thirteenth embodiment according to the present invention.

FIG. 17 is a sectional view showing a configuration of a fourteenth embodiment according to the present invention.

FIG. 18 is a cross-sectional view showing a configuration of a conventional sliding contact connection device.

[Explanation of symbols]

11 first conductor, 12 second conductor, 13 contacts,
14 mounting member, 15 support bolt, 16 spring ring, 17 guide ring, 18 fixing bolt, 19 shield, 21 first conductor, 21a end of first conductor,
22 second conductor, 22a end of second conductor, 23
Contact, 24 mounting member, 25 support bolt, 26 spring ring, 27 guide ring, 28 fixing bolt, 29
Fixing bolt, 31 contact, 32 leaf spring, 33
Guide ring, 34 fixing bolt, 36 contacts, 37
Leaf spring, 38 guide ring, 39 fixing bolt, 41
Contact, 42 spring member, 43 guide ring, 44
Retaining ring, 46 contacts, 47 coil spring, 48
Guide ring, 49 fixing bolt, 51 first conductor, 5
2 contactor, 53 mounting member, 54 fixing bolt, 55
Leaf spring, 56 spring member mounting seat, 57 fixing bolt, 58 guide ring, 59 fixing bolt, 61 spring member, 62 mounting plate, 63 fixing bolt, 71 first conductor, 72 contact, 73 mounting member, 74 torsion Spring, 75 torsion spring mounting seat, 76 fixing bolt, 81
First conductor, 82 contact, 83 mounting member, 84 coil spring, 85 fixing bolt, 91 first conductor, 92
Contact, 93 mounting member, 94 spring member, 95 fixing bolt, 96 plate spring, 102 contact, 103
Spring member, 104 guide ring, 105 fixing bolt,
106 contact, 107 coil spring, 108 spring holding lever.

 ────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Yoshitaka Maemura 2-3-2 Marunouchi, Chiyoda-ku, Tokyo Mitsubishi Electric Corporation

Claims (19)

[Claims] 1. An end of a first conductor having a contact surface formed by providing a step on the outer periphery of the end, the end having a cylindrical shape,
Each conductor inserted in the end of the second conductor whose end inner peripheral surface becomes a contact surface and arranged in a state where the contact surfaces face each other,
A contact portion that is radially arranged with respect to the central axis in the axial direction of the contact surface of the inner peripheral surface of the end portion of the second conductor and that contacts the contact surface of the second conductor at one end on the outer peripheral side in the arranged state. A contact portion that contacts the contact surface of the first conductor is formed at an intermediate portion on the inner peripheral side in the arranged state, and a mounting portion of a spring member that applies a contact pressure to each contact portion is formed at the other end portion, and the mounting portion is mounted. A plurality of contacts mounted on the end of the second conductor by the member, and a coil spring mounted on the mounting portion of the contact spring member and applying a contact pressure to the contact portion of each contact are formed in a ring shape. And a spring ring. 2. The slide according to claim 1, wherein a guide ring for concentrically positioning the first conductor and the second conductor is provided at the bottom of the contact surface on the inner surface of the end of the second conductor. Dynamic contact connection device. 3. An end of the first conductor having a contact surface formed by providing a step on the outer periphery of the end, wherein the end is formed in a cylindrical shape,
Each conductor inserted in the end of the second conductor whose end inner peripheral surface becomes a contact surface and arranged in a state where the contact surfaces face each other,
A contact portion that is radially arranged with respect to the central axis in the axial direction of the contact surface on the outer periphery of the end of the first conductor and arranged on one end on the outer periphery side in the arranged state and in contact with the contact surface of the second conductor A contact portion for contacting the contact surface of the first conductor is formed at an intermediate portion on the inner peripheral side in a state where the contact member is in the formed state, and a mounting portion of a spring member for applying a contact pressure to each contact portion is formed at the other end portion, and the mounting member A plurality of contacts mounted on the outer periphery of the first conductor end and a coil spring mounted on the mounting portion of the contact spring member and applying a contact pressure to the contact portion of each contact are formed in a ring shape. And a spring ring. 4. The guide ring according to claim 3, wherein a guide ring for concentrically positioning the first conductor and the second conductor is provided at a step portion of the contact surface on the outer periphery of the end of the first conductor. Sliding contact connection device. 5. An end portion of the first conductor having a contact surface formed by providing a step on the outer periphery of the end portion, the end portion is formed in a cylindrical shape,
Each conductor inserted in the end of the second conductor whose end inner peripheral surface becomes a contact surface and arranged in a state where the contact surfaces face each other,
A contact portion that is radially arranged with respect to the central axis in the axial direction of the contact surface on the outer periphery of the end of the first conductor and arranged on one end on the outer periphery side in the arranged state and in contact with the contact surface of the second conductor A contact portion that is in contact with the contact surface of the first conductor is formed at an intermediate portion on the inner peripheral side in a state where the contact is made, and a mounting groove of a spring member that applies a contact pressure to each contact portion is formed at the other end portion, A plurality of contacts mounted on the outer periphery of the first conductor end, a guide ring that concentrically positions the first conductor and the second conductor, one end is supported by the guide ring, and the other end is A sliding contact connection device comprising a plurality of plate-shaped spring members inserted into a spring member mounting groove of a contact and applying a contact pressure to a contact portion of each contact. 6. The sliding contact connection device according to claim 5, wherein the spring member for applying a contact pressure to the contact portion of each contact is constituted by two leaf springs. 7. The sliding contact connection device according to claim 5, wherein the spring member for applying a contact pressure to the contact portion of each contact is constituted by a U-shaped spring formed in a U-shape. . 8. An end of the first conductor having a contact surface formed by providing a step on the outer periphery of the end, wherein the end is formed in a cylindrical shape,
Each conductor inserted in the end of the second conductor whose end inner peripheral surface becomes a contact surface and arranged in a state where the contact surfaces face each other,
A contact portion that is radially arranged with respect to the central axis in the axial direction of the contact surface on the outer periphery of the end of the first conductor and arranged on one end on the outer periphery side in the arranged state and in contact with the contact surface of the second conductor A contact portion that is in contact with the contact surface of the first conductor is formed at an intermediate portion on the inner peripheral side in the state of being set, and a mounting seat of a spring member that applies a contact pressure to each contact portion is formed at the other end portion, and the mounting member A plurality of contacts mounted on the outer periphery of the first conductor end, the first conductor and the second conductor are concentrically positioned, and a guide provided with a ring-shaped projecting spring seat on the side surface is provided. A sliding mechanism comprising: a ring; and a plurality of coil springs mounted between a spring seat of the guide ring and a mounting seat of the contact, and applying a contact pressure to a contact portion of each contact. Contact connection device. 9. An end portion of the first conductor having a contact surface formed by providing a step on the outer periphery of the end portion, the end portion is formed in a cylindrical shape,
Each conductor inserted in the end of the second conductor whose end inner peripheral surface becomes a contact surface and arranged in a state where the contact surfaces face each other,
The first conductor is radially arranged with respect to the central axis in the axial direction of the contact surface on the outer periphery of the end, and a support groove of the spring member is formed at one end of the arranged state, and the outer peripheral side of the arranged state is formed. A contact portion that contacts the contact surface of the first conductor is formed at the other end on the inner peripheral side in a state where the contact portion that contacts the contact surface of the second conductor is disposed at the intermediate portion, and the contact member that contacts the contact surface of the first conductor is formed by the mounting member. A plurality of contacts attached to the ends of the conductors, and a ring-shaped support portion for positioning the first conductor and the second conductor concentrically and supporting the contacts in a predetermined position on the side surface are formed. And a leaf spring, one end of which is supported by the first conductor and the other end of which is inserted into the support groove of one end of the contact, and applies a contact pressure to the contact portion of each contact. A sliding contact connection device, characterized in that: 10. The spring member is characterized in that a spring portion is radially provided on the outer periphery of the disk-shaped support portion in correspondence with the arrangement of the contacts, and the spring portion is formed in an L-shaped bent shape. The sliding contact connection device according to claim 9, wherein 11. A second conductor in which the end of the first conductor having a contact surface formed with a step on the outer periphery of the end has a cylindrical end and the inner peripheral surface of the end serves as a contact surface. Each conductor inserted into the end of the conductor and arranged so that the contact surfaces face each other, and arranged radially with respect to the central axis in the axial direction of the contact surface on the outer periphery of the end of the first conductor, and arranged. A support hole for a spring member is formed at one end in the folded state, and a contact portion in contact with the contact surface of the second conductor is arranged at an intermediate portion on the outer periphery side in the arranged state. A contact portion that is in contact with the contact surface of the first conductor is formed, and the plurality of contacts mounted on the end of the first conductor by the mounting member, and the first conductor and the second conductor are concentrically formed. A guide ring in which a ring-shaped support portion for positioning and supporting the contact at a predetermined position on the side surface is formed, and one is supported by the first conductor And a torsion spring which is inserted into a support hole of the contact and applies a contact pressure to a contact portion of each contact. 12. An end of the first conductor having a contact surface formed by providing a step on the outer periphery of the end, wherein the end is formed in a cylindrical shape and the inner peripheral surface of the end is a contact surface. Each conductor inserted into the end of the conductor and arranged so that the contact surfaces face each other, and arranged radially with respect to the central axis in the axial direction of the contact surface on the outer periphery of the end of the first conductor, and arranged. The mounting seat of the spring member is formed on the inner peripheral side of the one end part in the set state, and the contact part that contacts the contact surface of the second conductor is arranged in the middle part on the outer peripheral side in the arranged state. A contact portion that is in contact with the contact surface of the first conductor is formed at the other end of the side, a plurality of contacts mounted on the end of the first conductor by the mounting member, the first conductor and the second A guide ring in which a conductor is concentrically positioned, and a ring-shaped supporting portion for supporting the contact at a predetermined position on a side surface, and a contact are arranged. A coil spring that is mounted for each contact between the inner peripheral side of the one end and the outer peripheral surface of the end of the first conductor, and that applies a contact pressure to the contact portion of each contact. Sliding contact connecting device. 13. An end of a first conductor having a contact surface formed by providing a step on the outer periphery of the end, and further having a mounting seat for a spring member formed at the end, the end being formed in a cylindrical shape. Each conductor inserted into the end of the second conductor whose inner peripheral surface is a contact surface and arranged so that the contact surfaces face each other, and the axial direction of the contact surface on the outer periphery of the end of the first conductor In the radially arranged with respect to the central axis, the contact portion that contacts the contact surface of the second conductor at the intermediate portion on the outer peripheral side in the arranged state and the other end on the inner peripheral side in the arranged state A contact portion that is in contact with the contact surface of the conductor is formed, a plurality of contacts mounted on the end of the first conductor by the mounting member, and the first conductor and the second conductor are concentrically positioned, A guide ring with a ring-shaped support on the side that supports the contact at a predetermined position, and a contact on the outer periphery of the disk-shaped support that corresponds to the contact A spring portion is provided radially, and the spring portion is formed of a U-shaped spring portion which is bent in the axial direction, and an inner peripheral side disposed at one end of each contact and a first conductor. A sliding contact connection device, wherein a U-shaped spring portion of a spring member is inserted between the outer peripheral surface of the end portion and a contact pressure is applied to a contact portion of the contact element. 14. An end of the first conductor in which a contact surface is formed by providing a step on the outer periphery of the end, wherein the end is formed in a cylindrical shape and the inner peripheral surface of the end is a contact surface. Each conductor inserted into the end of the conductor and arranged so that the contact surfaces face each other, and arranged radially with respect to the central axis in the axial direction of the contact surface on the outer periphery of the end of the first conductor, and arranged. A contact portion that contacts the contact surface of the first conductor is formed at an intermediate portion on the inner periphery side, which is disposed at one end portion on the outer peripheral side in a state where the contact portion is in contact with the contact surface of the second conductor. A mounting groove of a spring member that applies a contact pressure to each contact portion is formed in the portion, and the plurality of contacts mounted on the end of the first conductor by the mounting member, the first conductor and the second conductor are concentric. A guide ring positioned in a shape, one end is supported by the guide ring, an intermediate portion is formed in a chevron, and a top of the chevron is formed in the second conductor. It is formed higher than the circumferential position, the other end is inserted into the spring member mounting groove of the contact, and when the end of the first conductor is inserted into the end of the second conductor, the top of the chevron is A sliding contact connection device comprising: a plate-shaped spring that is pressed to apply a contact pressure to a contact portion of each contact. 15. An end of the first conductor in which a contact surface is formed by providing a step on the outer periphery of the end, wherein the end is formed in a cylindrical shape and the inner peripheral surface of the end is a contact surface. Each conductor inserted into the end of the conductor and arranged so that the contact surfaces face each other, and arranged radially with respect to the central axis in the axial direction of the contact surface on the outer periphery of the end of the first conductor, and arranged. A contact portion that contacts the contact surface of the first conductor is formed at an intermediate portion on the inner periphery side where the contact portion that contacts the contact surface of the second conductor is arranged at one end portion on the outer peripheral side in a state where the contact portion is arranged, A mounting portion of a spring member that applies a contact pressure to each contact portion is formed on the other end side on the outer peripheral side, a plurality of contacts mounted on the first conductor end by the mounting member, a first conductor and a second conductor. A guide ring for concentrically positioning the conductors, one end of which is fixed to the outer periphery of the contact, and the top of the middle portion is located at the inner periphery of the second conductor. Formed so that the other end is the other end of the contact, and the top of the chevron is pressed when the end of the first conductor is inserted into the end of the second conductor. And a plate-shaped spring for applying a contact pressure to a contact portion of each contact element. 16. An end of the first conductor in which a contact surface is formed by providing a step on the outer periphery of the end, wherein the end is formed in a cylindrical shape and the inner peripheral surface of the end is a contact surface. Each conductor inserted into the end of the conductor and arranged so that the contact surfaces face each other, and arranged radially with respect to the central axis in the axial direction of the contact surface on the outer periphery of the end of the first conductor, and arranged. A contact portion that contacts the contact surface of the second conductor is formed at one end of the outer periphery, and a contact portion that contacts the contact surface of the first conductor is formed at an intermediate portion on the opposite inner periphery side. At the end, a mounting seat for a spring member that applies a contact pressure to each contact portion is provided, and a mounting portion for a pressing lever of the spring member is formed on the outer peripheral side, and a plurality of mounting members are mounted on the end of the first conductor by the mounting member. A contact, a guide ring for concentrically positioning the first conductor and the second conductor, and a mounting seat for a spring member of the contact Attached to a height that is higher than the inner circumferential position of the second conductor, and a spring holding lever is arranged on the upper surface thereof, and when the end of the first conductor is inserted into the end of the second conductor A sliding contact connection device comprising: a coil spring that presses a top of a chevron to apply a contact pressure to a contact portion of each contact. 17. A structure in which the contact surface of the first conductor and the contact surface of the second conductor are silver-plated, and the thickness of the silver plating applied to the contact surface of the second conductor is equal to that of the first conductor. 17. The sliding contact connection device according to claim 1, wherein the thickness is smaller than the thickness of silver plating applied to the contact surface. 18. A structure in which the contact surface of the first conductor and the contact surface of the second conductor are plated with silver, and the second conductor is provided with respect to the thickness of the silver plating applied to the contact surface of the first conductor. 17. The sliding contact connection device according to claim 10, wherein the thickness of silver plating applied to said contact surface is reduced. 19. An end portion of the second conductor is formed of a cylindrical member having a diameter larger than that of a portion other than the end portion, and an outer peripheral end surface is formed of a member formed without a projection so as to prevent electric field concentration. The sliding contact connection device according to any one of claims 2 to 16, wherein the contact portion is configured by connecting to the contact member.