JP2020028110A - Connection member for coaxial cable, transmission path, and travel path structure - Google Patents

Abstract

To electrically and easily connect a coaxial cable and a plane conductor.SOLUTION: A connection member for a coaxial cable includes: a ground-side member 21 for electrically connecting a ground electrode 2 to a flange unit 12b electrically connected to a ground 10a of a coaxial cable 10; and a core-side member 22 provided insulated from the ground-side member 21, for electrically connecting a core 10b of the coaxial cable 10 to a conductive central conductor 12c. The core-side member 22 has a horizontal unit 22b which is a flat plate unit. The horizontal unit 22b is connected to one surface of a power transmission electrode 4 (or 5). Since the core-side member 22 electrically connected to the core 10b of the coaxial cable is connected to the power transmission electrode 4 (or 5) at the horizontal unit 22b that is a flat plate unit, connection can be easily performed even when the core 10b of the coaxial cable is electrically connected to the flat power transmission electrode 4 (or 5).SELECTED DRAWING: Figure 4

Description

  The present invention relates to a connection member for a coaxial cable, a transmission path, and a traveling path structure.

2. Description of the Related Art Conventionally, a moving object using an electric motor, such as an electric vehicle or an automatic guided vehicle, travels using energy stored in a battery. Therefore, the moving body has a limit on the moving distance. In addition, there is a problem caused by the battery, such as a long time required for the battery to be restarted due to a long charging time for the battery.
In order to solve this problem, a technology for wirelessly supplying power to a mobile object has been attracting attention. In this technique, RF power (high-frequency power) is transmitted from a power transmitting electrode buried under a road surface to a power receiving electrode mounted on a moving body in a non-contact manner. Thus, the moving body can run only on the power transmitted from the road surface without depending on the energy from the battery. That is, it is possible to travel to anywhere without charging.

As a technology for wirelessly supplying power to moving objects, a power transmission electrode is buried on the floor in the production facility to perform wireless power transmission to electric vehicles such as automatic guided vehicles and electric carts traveling in the production facility. Electrified floors have been proposed.
In such an electrification floor, power is supplied to the power transmission electrode by a power supply cable, and a coaxial cable having a low propagation loss is used as the power supply cable.

Conventionally, when a high-frequency transmission line such as a power supply cable is connected to a high-frequency circuit board using a high-frequency connector, the ground plate of the high-frequency connector provided on the power supply cable is connected to the ground of the high-frequency circuit board. Since it is necessary to securely connect the power supply cable, a high-frequency connector with an output terminal provided at a position in contact with the substrate when placed on the high-frequency circuit side substrate is provided on the high-frequency circuit side substrate. Is connected to a high-frequency connector provided on a board, thereby connecting the output terminal of the high-frequency connector on the power supply cable side and the ground plane to the board on the high-frequency circuit side (for example, a method has been proposed). And Patent Document 1.).
Further, a coupler or the like has been proposed for connecting a connector provided on a coaxial cable and a strip transmission line to the strip transmission line so that the characteristic impedance does not change (for example, see Patent Document 2). ).

JP 2000-15220A Japanese Patent No. 2574547 JP 2018-65407 A

By the way, on the electrification floor, a ground made of a metal sheet for shielding the influence of the skeleton, an insulating layer, and a power transmission electrode are laminated in this order. Then, by connecting the high-frequency power supply and the power transmission electrode with a coaxial cable, power is transmitted to the electric vehicle via the power transmission electrode. If the power transmission electrodes that make up the electrified floor are formed of planar conductors, it is difficult to connect the cylindrical core of the coaxial cable to the planar conductor, and for the same reason, connect the ground of the coaxial cable to the ground of the electrified floor. Difficult to do.
Therefore, there has been a demand for a connection method that can easily electrically connect the coaxial cable to the plane conductor, and in particular, can reduce the work at the place where the coaxial cable is laid.
Therefore, the present invention has been made in view of the above-mentioned conventional unsolved problem, and has a coaxial cable connecting member, a transmission line, and a cable capable of easily electrically connecting a coaxial cable and a plane conductor. It is intended to provide a traveling path structure.

According to one aspect of the present invention, a connection member for connecting an inner conductor and an outer conductor of a coaxial cable to a power transmission electrode and a ground electrode made of a planar conductor via a coaxial connector, wherein the coaxial connector is A ground-side member that has a flange portion that conducts with the conductor and a central conductor that conducts with the internal conductor, electrically connects the flange portion and the ground electrode, and electrically connects the center conductor and the power transmission electrode; There is provided a coaxial cable connecting member provided with a core wire side member, wherein the core wire side member has a flat plate portion, and the flat plate portion is electrically connected to one surface of the power transmission electrode by surface contact.
The ground-side member may have a flat plate portion, and the flat plate portion may be electrically connected to one surface of the ground electrode by surface contact.

Further, an insulating member may be provided between the ground side member and the core wire side member.
Further, the ground-side member may further include a support portion that supports the coaxial connector such that a center axis of the coaxial connector is parallel to the ground electrode.
Further, the ground-side member may further include a support for supporting the coaxial connector such that a center axis of the coaxial connector is perpendicular to the ground electrode.
Further, the ground-side member may be a screw-shaped member made of a conductive member, and one end of the screw-shaped member may be electrically connected to the flange portion, and the other end may be electrically connected to the ground electrode.
Still further, the coaxial connector is provided such that a center axis of the coaxial connector is perpendicular to the ground electrode, and the screw-shaped member is a screw for fixing the coaxial connector to a member including the ground electrode. You may.

According to another aspect of the present invention, a coaxial cable including an inner conductor and an outer conductor, a planar conductor including a power transmission electrode and a ground electrode, and the coaxial cable connection member according to the above aspect, are provided. A transmission path in which a plane conductor is connected by a coaxial cable connection member is provided.
Further, according to another aspect of the present invention, a plane conductor including a power transmission electrode and a ground electrode, which is laid on a traveling path of the moving body and supplies power to the moving body, includes an inner conductor and an outer conductor, and includes a flat conductor. There is provided a traveling path structure including a coaxial cable that supplies power and the coaxial cable connection member according to the above aspect, wherein the coaxial cable and the planar conductor are connected by the coaxial cable connection member.

  The coaxial cable and the plane conductor can be electrically connected more easily, the processing at the place where the coaxial cable is laid when the coaxial cable is laid can be reduced, and the working efficiency can be improved.

It is a schematic structure figure showing an example of the electrification floor to which the present invention is applied. FIG. 4 is an explanatory diagram for explaining a method of connecting a coaxial cable to a power transmission electrode and a ground electrode. It is an example of a coaxial connector. It is a lineblock diagram showing an example of a connection member for coaxial cables in a first embodiment. This is an example in which a connecting member for a coaxial cable is installed on an electric floor. It is a modification of the connection member for coaxial cables in a first embodiment. It is a modification of the connection member for coaxial cables in a first embodiment. It is a modification of the connection member for coaxial cables in a first embodiment. It is a lineblock diagram showing an example of a connection member for coaxial cables in a second embodiment. It is a modification of the connection member for coaxial cables in a second embodiment. It is a modification of the connection member for coaxial cables in a second embodiment. It is a lineblock diagram showing an example of a connection member for coaxial cables in a third embodiment. This is an example in which a connecting member for a coaxial cable is installed on an electric floor.

  In the following detailed description, numerous specific specific configurations are set forth in order to provide a thorough understanding of embodiments of the present invention. It will be apparent, however, that other embodiments may be practiced without limitation to such specific specific configurations. Further, the following embodiments do not limit the invention according to the claims, but include all combinations of the characteristic configurations described in the embodiments.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In the present embodiment, a case will be described in which the traveling path structure including the coaxial cable connecting member according to the present invention is applied to an electric floor.
First, a first embodiment will be described.
FIG. 1A is a perspective view showing an example of the electrification floor 1, and FIG. 1B is a longitudinal sectional view of the electrification floor 1.
The electrification floor 1 includes, for example, a ground electrode 2 made of a planar conductor, an insulating layer 3 laminated on the ground electrode 2, and a power transmission electrode made of a planar conductor laid on the insulating layer 3 at regular intervals. As shown in FIG. 1B, an insulating layer 4 a is stacked on the power transmitting electrode 4, and an insulating layer 5 a is stacked on the power transmitting electrode 5. The electrification floor 1 is arranged on a floor, for example.

For example, the thickness of the ground electrode 2 is 50 μm, the thickness of the insulating layer 3 is 10 mm, and the thickness of each of the power transmission electrodes 4 and 5 is 50 μm.
The output power of the high-frequency power supply 11 is supplied to the power transmission electrodes 4 and 5 via the respective coaxial cables 10.
Then, for example, by moving a moving body including the power receiving side device described in Patent Document 3 along the power transmitting electrodes 4 and 5, the power receiving side device provided in the moving body is moved from the power transmitting electrodes 4 and 5. By receiving the high-frequency energy, power is supplied from the power transmission electrodes 4 and 5 to the moving body.
Here, when power is supplied to the power transmission electrodes 4 and 5 via the coaxial cable 10, as shown in FIG. 2, the ground 10 a as an outer conductor of the coaxial cable 10 is connected to the ground electrode 2, and It is necessary to connect the core wire 10b as an internal conductor to the power transmission electrode 4 or 5.
In addition, in order to facilitate removal and connection of the coaxial cable 10, it is preferable that the coaxial cable 10 and the power transmission electrodes 4 and 5 are not directly connected but are connected via a coaxial connector.

As shown in FIG. 3, for example, the coaxial connector 12 provided on the coaxial cable 10 side includes a connecting portion 12a to which the coaxial cable 10 is connected, and a substantially square shape when viewed from the front formed at one end of the connecting portion 12a. It has a flange portion 12b and a central conductor 12c that extends in the axial direction from inside the connection portion 12a and partially projects outside. Then, the center conductor 12c is electrically connected to the power transmission electrode 4 or 5.
When the coaxial connector 12 shown in FIG. 3 is connected to the power transmission electrode 4 or 5 made of a planar conductor, it is difficult to directly connect the center conductor 12c to the power transmission electrode 4 or 5 because the flange portion 12b is provided. .

Therefore, in the present embodiment, the center conductor 12c of the coaxial connector 12 and the power transmission electrode 4 (or 5) are electrically connected using the coaxial cable connection member 20 shown in FIG.
As shown in FIGS. 4A and 4B, the coaxial cable connection member 20 is provided between the ground-side member 21, the core-side member 22, and the ground-side member 21 and the core-side member 22. An insulating member 23 that insulates them. 4A and 4B are configuration diagrams showing the coaxial cable connecting member 20 in a state where the coaxial connector 12 is connected. FIG. 4A is a partial cross-sectional view, and FIG. It is the rear view seen from. The coaxial connector 12 is connected to the ground side member 21.

The ground-side member 21 is formed by bending a rectangular plate-shaped member at a right angle. The ground-side member 21 has a vertical portion (supporting portion) 21a extending vertically and a vertical portion with the outer surface of the horizontal portion (flat portion) 21b of the ground-side member 21 facing downward. The outer surface of 21a is connected to the insulating member 23 by surface contact, and the horizontal portion 21b is arranged to extend on the opposite side to the insulating member 23. Here, the “outer surface” refers to a surface that is outside in a folded state. Further, the “inner surface” refers to a surface that becomes inner in a folded state.
In the coaxial connector 12, the flange 12b of the coaxial connector 12 is in contact with the inner surface of the vertical portion 21a, with the connection portion 12a facing the direction in which the horizontal portion 21b extends, and the flange 12b and the inner surface of the horizontal portion 21b are in contact with each other. Are arranged to be in contact with each other.
The insulating member 23 has a width equivalent to the width of the vertical portion 21a, is a rectangular plate-like shape that is higher than the height of the vertical portion 21a, and one surface is provided in contact with the outer surface of the vertical portion 21a. The lower surface of the insulating member 23 is flush with the outer surface of the horizontal portion 21b.

The core-side member 22 is formed by bending a rectangular plate-shaped member at a right angle, and the width of the core-side member 22 is smaller than the width of the insulating member 23 as shown in FIG.
The outer surface of the vertically extending vertical portion 22a of the core side member 22 is provided in contact with the surface of the insulating member 23 opposite to the surface in contact with the vertical portion 21a, and the horizontally extending horizontal portion of the core side member 22 ( The flat plate portion 22 b is arranged so as to extend on the opposite side to the insulating member 23. The length in the direction in which the vertical portion 22a extends is shorter than the length in the direction in which the vertical portion 21a extends.
The outer surface of the vertical portion 22a is in contact with the surface of the insulating member 23 opposite to the surface on which the vertical portion 21a is provided, and the lower end surface of the horizontal portion 22b is lower than the lower end surface of the horizontal portion 21b in side view. Are arranged to be higher by Δh. This difference Δh is set to a value equivalent to the thickness of the insulating layer 3 of the electrification floor 1. The core wire side member 22 is disposed such that the upper end surface of the vertical portion 22a is at the same position as the upper end surface of the vertical portion 21a.

  Then, the connecting portion 12a side of the coaxial connector 12 is oriented in the direction in which the horizontal portion 21b extends, and the flange portion 12b of the coaxial connector 12 and the inner surface of the vertical portion 21a are in contact with each other, and the lower end surface of the flange portion 12b and the horizontal portion 21b are When arranged so as to be in contact with the inner surface, a hole 20a for introducing a core wire is formed in each of the vertical portion 21a, the insulating member 23, and the vertical portion 22a at a position facing the central conductor 12c of the coaxial connector 12. The tip of the center conductor 12c is electrically connected to the core-side member 22 by a conductive adhesive 24 such as solder at an inner surface of the hole formed by the vertical portion 22a of the hole 20a. At this time, the inner surface of the hole formed in the vertical portion 21a of the ground side member 21 does not contact the center conductor 12c. An insulating member may be interposed so that the inner surface of the hole formed in the vertical portion 21a of the ground-side member 21 does not contact the center conductor 12c.

The coaxial connector 12 is fixed to the coaxial cable connecting member 20 by, for example, screwing. Thereby, the core wire 10b of the coaxial cable 10 is electrically connected to the core wire side member 22 via the center conductor 12c of the coaxial connector 12. The ground 10 a of the coaxial cable 10 is electrically connected to the ground member 21 via the flange 12 b of the coaxial connector 12.
Note that the vertical portion 21a, the insulating member 23, and the vertical portion 22a may be connected with an adhesive or the like. Further, at least the core side member 22 and the insulating member 23 may be detachably adhered, and the core side member 22 may be formed to be replaceable.

  Further, the shape of the horizontal portion 21b of the ground-side member 21 as viewed from above may be any shape as long as it can be electrically connected to the upper surface of the ground electrode 2. The shape of the vertical portion 21a as viewed from the coaxial connector 12 side may be any shape as long as the coaxial connector 12 can be fixed. The shape of the insulating member 23 viewed from the coaxial connector 12 side may be any shape as long as the lower end surface thereof is flush with the lower end surface of the vertical portion 21a and the vertical portion 21a and the vertical portion 22a can be reliably insulated. . The shape of the horizontal portion 22b of the core wire side member 22 as viewed from above is such that the horizontal portion 22b is disposed between the insulating layer 3 and the power transmission electrode 4 (or 5) as shown in FIG. Any shape can be used as long as it can be electrically connected to 4 (or 5) by surface contact. Further, as shown in FIG. 4B, the shape of the vertical portion 22a viewed from the rear side is such that the tip of the center conductor 12c is formed on the inner surface of the hole formed in the vertical portion 22a by the conductive adhesive 24 such as solder. Any shape may be used as long as it can be fixed and the core-side member 22 can be arranged so as to be in contact with the insulating member 23. Further, for example, as shown in FIG. 4, the upper end surface of the insulating member 23 may protrude from the upper end surfaces of the vertical portions 21a and 22a in a side view, and is insulated from each of the upper end surfaces of the vertical portions 21a and 22a. The upper end surface of the member 23 may have the same height. Further, the heights of the upper end surfaces of the vertical portions 21a and 22a in side view may not be the same.

FIG. 5 is a partial cross-sectional view showing an example in which the coaxial cable 10 is connected to the power transmission electrode 4 (or 5) laid on the electrification floor 1 using the coaxial cable connection member 20. FIG. 5 shows a case where the difference Δh is large.
In FIG. 5, illustration of the insulating layer 4a (or 5a) laminated on the power transmission electrode 4 (or 5) is omitted.
As shown in FIG. 5, the connecting member 20 for a coaxial cable connects the outer surface of the horizontal portion 21b to the upper surface of the ground electrode 2 by surface contact. On the other hand, the horizontal portion 22b connects the outer surface of the horizontal portion 22b to the upper surface of the insulating layer 3 by surface contact, and connects the upper surface of the horizontal portion 22b to the surface of the power transmission electrode 4 on the insulating layer 3 side by surface contact. I do.

The horizontal portion 21b and the ground electrode 2, and the horizontal portion 22b, the power transmission electrode 4 (or 5), and the insulating layer 3 may be bonded with, for example, an adhesive, or may be screwed.
The center conductor 12c of the coaxial cable connecting member 20 is electrically connected to the core side member 22, and the ground 10a is electrically connected to the ground side member 21. Therefore, the core wire 10b of the coaxial cable 10 is electrically connected to the power transmission electrode 4 (or 5) via the core wire member 22, and the ground 10a of the coaxial cable 10 is electrically connected to the ground electrode 2 via the ground member 21. Will be connected.

Next, the effects of using the coaxial cable connection member 20 according to the present embodiment will be described.
As described above, if the coaxial cable connection member 20 is not used, some intermediate member must be provided to connect the coaxial connector 12 provided on the coaxial cable 10 to the electrification floor 1. Even if the coaxial connector 12 is detached and the coaxial cable 10 is directly connected, it takes time and effort.

As shown in FIG. 5, when the coaxial cable connecting member 20 is used, the coaxial cable connecting member 20 is disposed on the electrification floor 1 so that the coaxial connector 12 provided on the coaxial cable 10 can be connected to the coaxial cable connecting member 20. Simply fix the coaxial cable 10 to the power transmission electrode 4.
(Or 5), and the coaxial cable 10 can be easily removed or replaced. When the connecting member 20 for a coaxial cable is installed on the electrification floor 1, the horizontal portion 21b made of a plane conductor is connected to the ground electrode 2 made of a plane conductor, and the horizontal portion 22b made of a plane conductor is a plane conductor. What is necessary is just to connect to the power transmission electrode 4 (or 5), that is, to connect by connecting the plane conductors in plane contact. Therefore, it is possible to easily connect the coaxial cable and the plane conductor as compared with the case where the coaxial cable is directly connected. As a result, the working efficiency when laying the coaxial cable 10 can be improved, that is, the laying of the coaxial cable 10 can be performed easily and in a short time, and the work time and labor can be reduced on site. Can be planned.

Further, in the coaxial cable connecting member 20, if at least a plurality of core side members 22 or coaxial cable connecting members 20 having different heights of the vertical portions 22a are prepared, the core side member 22 or the coaxial cable connecting member is prepared. By selecting 20, the coaxial cable 10 can be easily connected to the power transmission electrode 4 (or 5) and the ground electrode 2 even on the electrified floor 1 where the thickness of the insulating layer 3 is different.
Further, since the coaxial connector 12 is not directly connected to the power transmission electrode 4 (or 5) and the ground electrode 2 but is connected via the coaxial cable connection member 20, the coaxial connector 12 is connected to the coaxial cable connection member 20. If the connection can be made, the coaxial cable 10 can be connected to the power transmission electrodes 4 and 5 and the ground electrode 2 irrespective of the model number of the coaxial connector.

Further, as shown in FIG. 5, the ground 10a of the coaxial cable 10 can be connected to the ground electrode 2 via the coaxial cable connection member 20, so that the ground electrode for the electrification floor 1 and the high-frequency power supply 11 can be connected. It can be shared with the ground.
Further, since the coaxial cable connecting member 20 is configured so that the direction of the central axis of the coaxial connector 12 and the direction in which the power transmission electrode 4 (or 5) extends are parallel, the upper surface of the power transmission electrode 4 (or 5) is formed. , The height of the coaxial cable connection member 20 can be suppressed to about の of the height of the coaxial connector 12 in a side view. That is, unevenness when the coaxial cable 10 is laid on the electric floor 1 using the coaxial cable connecting member 20 can be reduced.

In the first embodiment, the case where both surfaces of the insulating member 23 are sandwiched between the ground-side member 21 and the core-side member 22 as shown in FIG. 4 has been described, but the present invention is not limited to this.
For example, as shown in FIG. 6, the entire outer surface of the vertical portion 22a of the core wire side member 22 is in contact with one surface of the insulating member 23, and further, the insulating member 23a and the inner And an insulating member 23b covering the entire surface of the vertical portion 22a, so that the portion other than the side surface of the vertical portion 22a is not exposed and the central conductor 12c is not exposed. Further, at this time, the upper end surfaces of the flange portion 12b, the vertical portion 21a, the insulating member 23, and the insulating members 23a and 23b may be formed to be flush with each other in a side view.
6A and 6B are configuration diagrams showing the coaxial cable connecting member 20 in a state where the coaxial connector 12 is connected. FIG. 6A is a partial cross-sectional view, and FIG. And FIG. 6C is a top view.

Further, since the vertical portion 22a of the core side member 22 only needs to be able to fix the center conductor 12c, for example, as shown in FIG. May be formed so as to have a height corresponding to the height of the hole 20a.
7A and 7B are configuration diagrams showing the coaxial cable connecting member 20 in a state where the coaxial connector 12 is connected. FIG. 7A is a partial cross-sectional view, and FIG. 7 (c) is a top view.
Further, as shown in FIG. 8, the coaxial cable connection member 20 may be configured such that the direction in which the central axis of the coaxial connector 12 extends is the direction in which the power transmission electrode 4 (or 5) extends.
In this case, the coaxial cable connecting member 20 is provided, for example, as a ground-side member 25, a core-side member 22, and an insulating member provided between the ground-side member 25 and the core-side member 22 to insulate them. 26. The coaxial connector 12 is connected to the ground side member 25.

The core side member 22 is the same as the core side member 22 shown in FIG. 4 in the first embodiment, and the inner conductor of the center conductor 12c of the coaxial connector 12 is provided on the inner surface of the hole formed in the vertical portion 22a among the holes 20a. The tips are electrically connected by a conductive adhesive 24.
The ground-side member 25 is formed, for example, by bending a plate-like member having the same width as the core wire-side member 22, one surface is provided in contact with the flange portion 12 b of the coaxial connector 12, and the other surface is provided. A vertical portion 25a facing the vertical portion 22a of the core side member 22, one end is joined to the upper end of the vertical portion 25a, and a horizontal portion 25b arranged in parallel with the extending direction of the central conductor 12c; A vertical portion 25c which is joined to an end of the vertical portion 25b and is provided at a position opposite to a surface of the vertical portion 22a opposite to the coaxial connector 12, and one end is joined to a lower end of the vertical portion 25c; And a horizontal portion 25d, which faces the horizontal portion 25b and whose other surface is in surface contact with the ground electrode 2.

  An insulating member 26 is provided between the ground-side member 25 and the core-line-side member 22 so that there is no electrical connection therebetween. Specifically, as shown in FIG. 8, the insulating member 26 is disposed so that the outer surface of the horizontal portion 22 b of the core wire member 22 is in contact with the upper surface of the insulating layer 3, and In the state where the portion 25a is in contact with the flange portion 12b, the outer surface of the horizontal portion 25d is in contact with the ground electrode 2, and the end of the horizontal portion 25d is arranged between the insulating layer 3 and the ground electrode 2, In a region surrounded by the core member 25, the core side member 22, the insulating layer 3, and the flange portion 12 b, it is provided so as not to protrude toward the coaxial cable 10 beyond the flange portion 12 b. This prevents conduction between the ground-side member 25 and the core-side member 22 and between the core-side member 22 and the coaxial connector 12.

Further, a hole for introducing a core wire is provided at a position between the vertical portion 25a and the vertical portion 22a of the insulating member 26, between the vertical portion 25a and the vertical portion 22a, and at a position facing the center conductor 12c of the coaxial connector 12 in each of the vertical portions 22a. 20a is formed, and the tip of the central conductor 12c is connected to the core side member 22 with a conductive adhesive 24 such as solder at a hole formed in the vertical portion 22a, and is connected to the core side at the vertical portion 22a. It is electrically connected to the member 22. At this time, the inner surface of the hole formed in the vertical portion 25a of the ground side member 25 and the center conductor 12c, for example, are insulated between the inner surface of the hole formed in the vertical portion 25a and the center conductor 12c. Members and the like are provided.
With such a configuration, the central axis of the coaxial connector 12 can be arranged along the direction in which the power transmission electrode 4 (or 5) extends.
FIG. 8 is a partial cross-sectional view showing an example in which the coaxial cable 10 is connected to the power transmission electrode 4 (or 5) laid on the electrification floor 1 using the coaxial cable connection member 20. In FIG. 8, illustration of the insulating layer 4a (or 5a) laminated on the power transmission electrode 4 (or 5) is omitted.

Next, a second embodiment of the present invention will be described.
FIG. 9 is a configuration diagram for explaining the coaxial cable connecting member 30 in the second embodiment. The coaxial cable connecting member 30 is used for the power transmission electrode 4 (or 5) laid on the electrification floor 1. FIG. 2 is a partial cross-sectional view showing an example of a case where the coaxial cable 10 is connected to the power supply.
The coaxial cable connecting member 30 in the second embodiment supports the coaxial connector 12 so that the center axis of the coaxial connector 12 is perpendicular to the power transmission electrode 4 (or 5) as shown in FIG. It was made.

As shown in FIG. 9, the coaxial cable connection member 30 in the second embodiment includes a ground-side member 31, a core-side member 32, and an insulating member 33 that insulates the ground-side member 31 from the core-side member 32. And The coaxial connector 12 is connected to the ground member 31, and the power transmission electrode 4 (or 5) is connected to the core wire member 32.
The ground-side member 31 is formed by bending a rectangular plate-shaped member at a right angle. The ground-side member 31 extends horizontally, one surface of which is connected to the flange portion 12b of the coaxial connector 12 by surface contact, a vertically extending vertical portion 31b, and a side opposite to the horizontal portion 31a. A horizontal portion 31c extending on one side and connected to the ground electrode 2 by surface contact. The horizontal portion 31a corresponds to the support portion, and the horizontal portion 31c corresponds to the flat plate portion.

The core wire side member 32 is formed of a plate-shaped member, and one surface thereof is disposed in contact with the power transmission electrode 4 (or 5). In FIG. 9, illustration of the insulating layer 4a (or 5a) laminated on the power transmission electrode 4 (or 5) is omitted. Further, at least a portion where the core wire side member 32 and the power transmission electrode 4 (or 5) are in contact with each other is not provided with the insulating layer 4a (or 5a).
Then, in a state where the core wire side member 32 is arranged so as to be in contact with the power transmission electrode 4 (or 5), an insulating member is provided between the horizontal portion 31a and the power transmission electrode 4 (or 5) so as to cover the entire core wire side member 32. 33 are provided.

Further, a hole 30a for introducing a core wire is formed in each of the horizontal portion 31a, the insulating member 33, and the core side member 32 at a position facing the center conductor 12c of the coaxial connector 12, and the tip of the center conductor 12c is connected to the core side member. 32 is electrically connected to the inner surface of the hole formed by the conductive adhesive 24 such as solder. At this time, for example, an insulating member is provided between the inner surface of the hole formed in the horizontal portion 31a of the ground side member 31 and the center conductor 12c so that the inner surface does not contact the center conductor 12c.
Thereby, the core wire 10b of the coaxial cable 10 is conducted to the core wire side member 32 via the center conductor 12c, and is electrically connected to the power transmission electrode 4 (or 5) via the core wire side member 32. The ground 10 a of the coaxial cable 10 is electrically connected to the ground electrode 2 via the flange 12 b and the ground member 31.

Therefore, in this case, the same operation and effect as those of the first embodiment can be obtained.
The horizontal portion 31c may be provided so as to face the horizontal portion 31a as shown in FIG.
FIG. 10 is a partial cross-sectional view showing an example in which the coaxial cable 10 is connected to the power transmission electrode 4 (or 5) laid on the electrification floor 1 using the coaxial cable connection member 30. In FIG. 10, illustration of the insulating layer 4a (or 5a) laminated on the power transmission electrode 4 (or 5) is omitted.

  Also, as shown in FIG. 11, the ground side member 31 is formed in a U-shape of katakana, and the outer surface of one horizontal portion 31a of the ground side member 31 contacts the flange portion 12b of the coaxial connector 12, The outer surface of the other horizontal portion 31c of the ground-side member 31 is in contact with the ground electrode 2, and the opening of the ground-side member 31 is arranged so as to face the direction in which the power transmission electrode 4 (or 5) extends. Furthermore, a plate-shaped core wire-side member 32 parallel to the horizontal portion 31a and the horizontal portion 31c is disposed so as to protrude from the horizontal portions 31a and 31c in a top view. A hole 30a for introducing a core wire is provided in each of the horizontal portion 31a and the core wire member 32 at a position facing the center conductor 12c of the coaxial connector 12, and the tip of the center conductor 12c is formed in the core wire member 32. The hole is electrically connected to the inner surface of the core wire side member 32 with a conductive adhesive 24 such as solder. At this time, in order to prevent the inner surface of the hole formed in the horizontal portion 31a of the ground side member 31 from contacting the center conductor 12c, for example, an insulating member is interposed between them.

Thereby, the core wire 10b of the coaxial cable 10 is connected to the core wire side member 32 via the center conductor 12c, and is connected to the power transmission electrode 4 (or 5) via the core wire side member 32 as shown in FIG. Electrically connected. In addition, the ground 10 a of the coaxial cable 10 is electrically connected to the ground electrode 2 by surface contact via the flange portion 12 b and the ground member 31.
Therefore, in this case, the same operation and effect as those of the first embodiment can be obtained. 11A is a partial cross-sectional view of the coaxial cable connecting member 30 in a state where the coaxial connector 12 is connected, and FIG. 11B is a diagram showing the coaxial cable connecting member 30 in a state where the coaxial connector 12 is connected. FIG. 2 is a partial cross-sectional view illustrating an example of a case in which the device is installed in the first embodiment. In FIG. 11, illustration of the insulating layer 4a (or 5a) laminated on the power transmission electrode 4 (or 5) is omitted.

In the first and second embodiments, the ground-side members 21 and 31 and the core-side members 22 and 32 need not necessarily be formed of one continuous member, but may be formed by joining a plurality of members. You may. Similarly, the insulating members 23, 26, and 33 do not need to be formed of one continuous member, and may be formed by joining a plurality of members.
Further, in each of the above embodiments, the case where the insulating members 23, 26, 33 and the like are provided has been described. However, by securing the space without providing the insulating members 23, 26, and 33, the insulating members 23, 26, The same effect as the case where 33 or the like is provided may be obtained.

Next, a third embodiment of the present invention will be described.
FIG. 12 is a configuration diagram for explaining the coaxial cable connecting member 40 in the third embodiment, and shows the coaxial cable connecting member 40 in a state where the coaxial connector 12 is connected. FIG. 12A is a partial cross-sectional view, and FIG. 12B is a rear view as viewed from the core side member 22 side. FIG. 13 is a partial cross-sectional view showing an example in which the coaxial cable 10 is connected to the power transmission electrode 4 (or 5) laid on the electrification floor 1 using the coaxial cable connection member 40, It is XX 'sectional drawing of FIG.12 (b). In FIG. 13, the illustration of the insulating layer 4a (or 5a) laminated on the power transmission electrode 4 (or 5) is omitted. The electrification floor 1 is laid on an existing floor 1a made of concrete or the like.

As shown in FIG. 12, the coaxial cable connecting member 40 in the third embodiment insulates a screw 41 as a ground-side member, a core-side member 42, and a flange portion 12 b and a core-side member 42 of the coaxial connector 12. And an insulating member 43 to be used. In FIG. 12A, the screws 41 are simplified.
The screw 41 is formed of a conductive member. As shown in FIG. 13, the coaxial connector 12 is formed in a through hole 12bb formed in the flange portion 12b and an insulating member 43 described below in a state where the flange portion 12b and the power transmission electrode 4 (or 5) face each other. It is fixed to the electric floor 1 by the screw 41 through the through hole 43bb. As shown in FIG. 13, at least the tip of the screw 41 has a length reaching the ground electrode 2 of the electrification floor 1 and has a length sufficient to fix the coaxial connector 12 to the electrification floor 1. For example, as shown in FIG. 13, the screw 41 has a length that penetrates the electrified floor 1 and reaches the existing floor 1a.

The through holes 12bb are formed at four locations near each of the four corners of the flange portion.
The core side member 42 is formed of a plate-shaped member, and the core side member 42 has a connection hole 42a formed at one end thereof. When the center conductor 12c of the coaxial connector 12 is inserted into the connection hole 42a of the core side member 42, the inner periphery of the connection hole 42a and the side surface of the distal end of the center conductor 12c are connected to each other. The connection is made by conductive connection with a conductive adhesive such as solder. In addition, as shown in FIG. 12B, the core wire side member 42 has four through holes as viewed from above when the inner circumference of the connection hole 42a and the outer circumference of the distal end of the center conductor 12c are electrically connected. 12bb, so that the end of the core side member 42 opposite to the end connected to the center conductor 12c projects from the insulating member 43 in a top view. It is formed.

The insulating member 43 has a size that at least overlaps the entire flange portion 12b when viewed from above,
In a top view, a through hole 43a is formed at a position facing the center conductor 12c of the coaxial connector 12, and a through hole 43bb is formed at a position facing each of the four through holes 12bb of the flange portion 12b.
Then, by connecting the coaxial connector 12 to the coaxial cable connecting member 40, the through hole 43a of the insulating member 43 and the connecting hole 42a of the core side member 42 communicate with each other in a top view, and the insulating member 43 and the core side member are connected. The center conductor 12c is inserted into this hole, and a portion of the inner periphery of the connection hole 42a of the core side member 42 facing the outer periphery of the center conductor 12c is formed by solder or the like. Are electrically conductively connected by the conductive adhesive.

Similarly, as shown in FIG. 13, when viewed from above, the through hole 12bb of the flange portion 12b and the through hole 43bb of the insulating member 43 communicate with each other, and a hole penetrating the flange portion 12b and the insulating member 43 is formed. .
As shown in FIG. 13, the connection member 40 for the coaxial cable makes the core wire side member 42 come into contact with the insulating layer 3, and the end of the core wire side member 42 opposite to the center conductor 12 c is connected to the insulating layer 3. In a state of being sandwiched between the electrodes 4 (or 5), it is fixed to the electric floor 1 by screws 41 through the through holes 12bb and 43bb from the flange portion 12b side. Thereby, the core wire 10b of the coaxial cable 10 is electrically connected to the power transmission electrode 4 (or 5) via the center conductor 12c and the core wire side member 42. On the other hand, the ground 10a of the coaxial cable 10 is electrically connected to the ground electrode 2 via the flange portion 12b, the through hole 12bb, and the screw 41.

As shown in FIG. 13, the power transmission electrode 4 (or 5) is not provided near the portion facing the coaxial cable connection member 40, and the power transmission electrode 4 (or 5) and the core wire side member are not provided. 42 is formed so that the overlap width with 42 is a width that allows sufficient conduction between the two. The power transmission electrode 4 (or 5) is formed in a region excluding the periphery of the screw 41 so as not to conduct with the screw 41.
Therefore, also in this case, as in the first and second embodiments, the high-frequency power supply 11 and the high-frequency power supply 11 are controlled while suppressing unevenness caused by connecting the coaxial cable 10 to the power transmission electrode 4 (or 5) formed of a flat electrode. The power transmission electrode 4 (or 5) can be connected while being mechanically stabilized. In addition, the ground of the electrification floor 1 (that is, the ground electrode 2) and the ground of the high-frequency power supply 11 can be shared.

Further, since the screw 41 for fixing the coaxial cable connecting member 40 to the electric floor 1 acts as a ground side member for conducting the flange portion 12b and the ground electrode 2, it is necessary to provide a separate ground side member. Absent. Therefore, the number of components can be reduced, and the coaxial cable connecting member 30 can be downsized.
Further, after the electrification floor 1 is constructed, the coaxial cable connecting member 40 may be arranged at an arbitrary place, and the installation of the electrification floor 1 and the laying of the coaxial cable 10 do not need to be performed at the same time. And the electrical work for laying the coaxial cable 10 can be performed separately, and the workability can be improved.

Here, the case where the screw 41 is used as the ground-side member has been described, but the present invention is not limited to this, and a screw-like member such as a screw or a nail can be used as the ground-side member.
Further, in the above embodiment, a case is described in which the traveling path structure provided with the connecting member for a coaxial cable according to the present invention is applied to an electrified floor, and the insulating layers 4a and 5a are laminated on the power transmission electrodes 4 and 5, respectively. However, it is not limited to this. For example, when the travel path structure according to the present invention is applied to a floor of a factory or the like where no people can enter, the insulating layers 4a and 5a may not be provided on the power transmission electrodes 4 and 5. Further, from the viewpoint of safety, the traveling path structure according to the present invention may be buried under the floor.

Further, in each of the above embodiments, the case where the traveling path structure including the coaxial cable connecting member according to the present invention is applied to an electrified floor has been described, but the present invention is not limited to this.
For example, the present invention can be applied to a running path such as a factory floor, a parking lot, a road, and the like. In addition, floors of buildings where electric forks and AGVs (automated guided vehicles) are expected to travel along fixed routes such as airports, distribution warehouses, and markets, cart paths in golf courses, and go-karts in amusement parks. Alternatively, it is also possible to apply a route determined roughly outdoors to a floor, a pavement, or the like on which an electric vehicle travels.

In addition, the transmission path in which the coaxial cable and the plane conductor are electrically connected may be formed by using the coaxial cable connection member according to the present invention without being limited to the electric floor.
As described above, the connection member for a coaxial cable according to one embodiment of the present invention connects the inner conductor and the outer conductor of the coaxial cable to the power transmission electrode and the ground electrode made of a planar conductor via the coaxial connector. A connection member, wherein the coaxial connector has a flange portion that conducts with the outer conductor, a central conductor that conducts with the inner conductor, and a ground-side member that electrically connects the flange portion and the ground electrode; A core-side member for electrically connecting the conductor to the power transmission electrode; the core-side member has a flat plate portion, and the flat plate portion is electrically connected to one surface of the power transmission electrode by surface contact;

In the connection member for a coaxial cable, the ground-side member may have a flat plate portion, and the flat plate portion may be electrically connected to one surface of the ground electrode by surface contact.
Further, an insulating member may be provided between the ground side member and the core wire side member.
Further, the ground-side member may further include a support portion that supports the coaxial connector such that a center axis of the coaxial connector is parallel to the ground electrode.

Further, the ground-side member may further include a support for supporting the coaxial connector such that a center axis of the coaxial connector is perpendicular to the ground electrode.
The ground-side member is a screw-shaped member made of a conductive member. One end of the screw-shaped member is electrically connected to the flange portion, and the other end is electrically connected to the ground electrode. May be provided so that the center axis of the coaxial connector is perpendicular to the ground electrode, and the screw-shaped member may be a screw for fixing the coaxial connector to a member including the ground electrode.

It should be noted that the scope of the present invention is not limited to the illustrated and described exemplary embodiments, but also includes all embodiments that provide effects equivalent to those aimed at by the present invention.
Furthermore, the scope of the present invention is not limited to the combination of features of the invention as defined by the claims, but may be defined by any desired combination of particular features of each disclosed feature.

DESCRIPTION OF SYMBOLS 1 Electrification floor 2 Ground electrode 3 Insulation layer 4, 5 Power transmission electrode 10 Coaxial cable 10a Ground 10b Core wire 12 Coaxial connector 12b Flange part 12c Center conductor 12bb Through hole 20, 30, 40 Coaxial cable connecting members 21, 25, 31 Ground side Members 22, 32, 42 Core side members 23, 26, 33, 43 Insulating member 24 Conductive adhesive 41 Screw 42a Connection hole

Claims (5)

A connection member for connecting an inner conductor and an outer conductor of a coaxial cable to a power transmission electrode and a ground electrode made of a planar conductor via a coaxial connector,
The coaxial connector has a flange portion that conducts with the outer conductor, and a center conductor that conducts with the inner conductor,
A ground-side member for electrically connecting the flange portion and the ground electrode,
A core wire side member for electrically connecting the center conductor and the power transmission electrode,
A connection member for a coaxial cable, wherein the core-side member has a flat plate portion, and the flat plate portion is electrically connected to one surface of the power transmission electrode by surface contact.   The connecting member for a coaxial cable according to claim 1, wherein the ground-side member has a flat plate portion, and the flat plate portion is electrically connected to one surface of the ground electrode by surface contact.   The ground-side member is a screw-shaped member made of a conductive member, and one end of the screw-shaped member is electrically connected to the flange portion, and the other end is electrically connected to the ground electrode. A connecting member for a coaxial cable according to the above. A coaxial cable including an inner conductor and an outer conductor, a planar conductor including a power transmission electrode and a ground electrode, and the coaxial cable connection member according to any one of claims 1 to 3,
A transmission path, wherein the coaxial cable and the planar conductor are connected by the coaxial cable connection member. A plane conductor including a power transmission electrode and a ground electrode that are laid on a traveling path of the moving body and supply power to the moving body,
A coaxial cable including an inner conductor and an outer conductor, and supplying power to the planar conductor,
A connection member for a coaxial cable according to any one of claims 1 to 3,
A running path structure, wherein the coaxial cable and the plane conductor are connected by the coaxial cable connecting member.

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