JPH0234150B2 - KAITENTAI HENODENKISETSUZOKUKOZO - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION A. Object of the Invention (1) Industrial Application Field The present invention relates to an electrical connection structure to a rotating body for conducting and receiving electricity to and from the rotating body.

(2) Conventional technology Until now, a device with a simple structure for supplying and receiving electricity with a rotating body has not been realized, and for example, it has been difficult to install sensing parts such as sensors inside the rotating body. .

(3) Problems to be Solved by the Invention The present invention has been made in view of the above-mentioned conventional circumstances, and provides a method for supplying electricity to a rotating body with a simple structure that enables electricity to be passed to and received from the rotating body. The purpose is to provide a connection structure.

B. Structure of the Invention (1) Means for Solving the Problems According to the present invention, a plurality of female connection terminals are provided at one end, and each of the female connection terminals is individually electrically connected to the center. A female connecting member having a plurality of conductors resiliently protruding from the other end at positions at different distances from the other end is relatively rotatably supported on a support body with the center position as an axis of relative rotation, A conductive member is attached to the support body at a center position on the axis of relative rotation or on a concentric circle centered on the center position in order to individually slide the tips of the conductors into contact with each other in accordance with relative rotation to obtain an electrical connection. Either one of the support body and a male connection member provided with a plurality of male connection terminals each individually connectable to the female connection terminals of the female member have their center positions aligned with the axis of rotation. and is fixed to the rotating body.

(2) Action When the rotating body rotates with the male connection terminals connected to the female connection terminals, the female connection members rotate relative to the support, and the conductors individually slide onto the corresponding conductive members. This results in an electrical connection state.

(3) Embodiment An embodiment of the present invention will be described below with reference to the drawings. First, in FIG. 1, a male connecting member 2 is firmly connected to a rotating body 1.
A female connecting member 3 which can be connected to is supported on a support 4 so as to be relatively rotatable.

In FIG. 2, the male connecting member 2 is fixed to the rotating body 1 with its center position aligned with the rotational axis 5, and has a plurality of, for example, four male connecting terminals 6, 7, 8, and 9. Be prepared. Moreover, these male connection terminals 6 to 9 are arranged at different distances from the center position, for example, the male connection terminal 6 is arranged at the center position,
The other male connection terminals 7, 8, and 9 are arranged so that the distances L1, L2, and L3 from the center position are gradually increased. Further, lead wires 10, 11, 12, and 13 individually connected to each of the male connection terminals 6 to 9 are extended to appropriate positions within the rotating body 1.

Referring to FIGS. 3 and 4 together, the female connecting member 3 is basically formed in a cylindrical shape from an electrically insulating material. At one end of the female connecting member 3, guide holes 14, 15, 16, and 17 are provided for each of the male connecting terminals 6 to 9, into which the male connecting terminals 6 to 9 can be individually inserted.
are arranged in accordance with the arrangement of. That is, the guide hole 14 is arranged at the center position of the female connecting member 3,
The other guide holes 15, 16, and 17 are arranged at positions spaced apart from the center position by the distances L1, L2, and L3, respectively.

The female connecting member 3 has the respective guide holes 14 to 1.
A guide tube 18 made of a conductive material is embedded coaxially with the guide tube 7 . One end of these guide tubes 18 is closed with an end plate 19, into which the male connection terminals 6 to 9 inserted into each of the guide holes 14 to 17 are fitted to obtain an electrical connection. Female connection terminals 20 are fixedly attached thereto.

On the other hand, a guide hole 21 is provided in the center at the other end of the guide tube 18.
An end plate 22 having a
Round rod-shaped conductors 23, 24, 25, and 26 are inserted through the holes 1. A disk-shaped guide member 27 that slides on the guide tube 18 is fixed to the inner end of each conductor 23 to 26.
It moves within the guide tube 18 while maintaining electrical continuity with the guide tube 18. Moreover, a spring 28 is interposed between the end plate 19 and the guide member 27 in the guide tube 18, and the guide member 27, that is, each conductor 23 to
26 is elastically biased in a direction to cause its outer end to protrude from the other end of the female connecting member 3.

The support body 4 includes a cylindrical member 29 and a cylindrical member 29.
The female connecting member 3 is made up of a holding member 30 that is screwed onto the end of the holding member 30, and a take-out plate 31 that is held between the cylindrical member 29 and the holding member 30. In this state, it is supported for relative rotation within the cylindrical member 29 by bearings 32 and 33.

In FIG. 5, the take-out plate 31 is made of an electrically insulating material, and each of the conductors 23 to 26
Four conductive members 34, 35, 36, and 37 are buried while maintaining electrical insulation between each other so that the outer ends of the conductive members 34, 35, 36, and 37 can be individually slid into contact with each other. That is, the conductive member 3
4 is disposed at the center of the take-out plate 31, and the other conductive members 35 to 37 are formed in concentric circles with radii L1, L2, and L3 centered on the conductive member 34, and are embedded in the take-out plate 31.

Lead wires 38 and 3 are connected to each conductive member 34 to 37.
9, 40, and 41 are individually connected, and each lead wire 38-41 is taken out from a take-out hole 42 provided in the holding member 30.

Next, to explain the operation of this embodiment, each of the male connection terminals 6 to 9 of the male connection member 2 fixedly installed on the rotating body 1 is inserted into the guide holes 14 to 17, and the female connection terminals 20 are inserted into the respective male connection terminals 6 to 9 of the male connection member 2 fixed to the rotating body 1. Connect individually. In this state, the male connecting member 2 and the female connecting member 3 are substantially integrated, but are rotatable relative to the support body 4.

When the rotating body 1 starts rotating, the male connecting member 2
The female connecting member 3 also rotates, but since the female connecting member 3 is rotatable relative to the support 4, the support 4 does not rotate. When the female connecting member 3 rotates relative to the support 4, the conductors 23 to 26 individually slide into contact with the corresponding conductive members 34 to 37 to maintain electrical continuity.
Moreover, since the conductors 23 to 26 are elastically biased by the spring 28, the electrical connection state is maintained even if the conductors 23 to 26 are slightly worn.

In the above embodiment, the male connecting member 2 is connected to the rotating body 1.
Although the support body 4 is fixedly attached to the rotating body 1, the support body 4 may be fixedly attached to the rotating body 1.

C. Effects of the Invention As described above, according to the present invention, one end has a plurality of female connection terminals, and the female connection terminals are individually electrically connected to each other at different distances from the center position. A female connecting member having a plurality of conductors resiliently protruding from the other end at a position is relatively rotatably supported on a support with the center position as an axis of relative rotation, and the support has a relative rotation axis. A conductive member is provided at a center position on the axis of relative rotation or on a concentric circle centered on the center position in order to individually slide the ends of each conductor into electrical connection according to the female member. Either one of the male connecting member having a plurality of male connecting terminals that can be individually connected to the female connecting terminals of the supporting member and the support body is fixed to the rotating body with the center thereof aligned with the rotation axis. The structure is simple and
It becomes possible to conduct electricity to and receive electricity from the rotating body.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which FIG. 1 is an exploded longitudinal sectional side view, FIG. 2 is a view taken along the - line in FIG. 1, FIG. The figure is an enlarged cross-sectional view taken along the line -- in FIG. 3, and FIG. 5 is a cross-sectional view taken along the line -- in FIG. DESCRIPTION OF SYMBOLS 1...Rotating body, 2...Male type connecting member, 3...Female type connecting member, 4...Support body, 6, 7, 8, 9...
Male type connection terminal, 20...Female type connection terminal, 23,2
4, 25, 26...Conductor, 34, 35, 36,
37... Conductive member.

Claims (1)

[Claims] 1 Having a plurality of female connecting terminals at one end, each of which is electrically connected to the female connecting terminals, and elastically protruded from the other end at different distances from the center position. A female connecting member having a plurality of conductors is relatively rotatably supported on a support body with the center position as an axis of relative rotation,
A conductive member is attached to the support body at a center position on the axis of relative rotation or on a concentric circle centered on the center position in order to individually slide the tips of the conductors into contact with each other in accordance with relative rotation to obtain electrical connection. Either one of the support body and a male connection member provided with a plurality of male connection terminals each individually connectable to the female connection terminals of the female member have their center positions aligned with the axis of rotation. An electrical connection structure to a rotating body, characterized in that the structure is fixed to the rotating body.