Connector, connector assembly, and transmission line connection system

Abstract

[Problem] To provide a connector that makes it possible to achieve greater high-density miniaturization of a transmission line and further improvement in the electrical characteristics of the transmission line. [Solution] The present invention provides a transmission line connection system comprising a connector, coaxial cables, and a female pin, wherein: the connector has a cylindrical sidewall part, a connector first insertion part formed at one end of the cylindrical sidewall part, a connector second insertion part formed at the other end of the cylindrical sidewall part opposite the one end of the cylindrical sidewall part, and sidewall recesses that are provided to the inner wall of the cylindrical sidewall part and that are formed so as to be recessed in the outer direction in the inner wall and surround the inner wall, and the connector penetrates from the connector first insertion part to the connector second insertion part; the coaxial cable has a core conductor, an insulator disposed at the periphery of the core conductor, and an external conductor disposed at the periphery of the insulator; the female pin has a female pine first insertion opening formed at one end of the female pin in the length direction, which is the connector penetration direction, and a female pin second insertion opening formed at the other end of the female pin in the length direction, said end being opposite the one end of the female pin in the length direction; a plurality of external conductor-splitting leading end pieces that split the coaxial cable in the length direction is formed on the leading end side of the external conductor; an external conductor-splitting leading end piece protrusion that protrudes to the outside is formed on each of the external conductor-splitting leading end pieces; the coaxial cable is inserted into the connector first insertion part from the leading end side of the coaxial cable; the female pin is disposed inside the cylindrical sidewall part of the connector; the external conductor-splitting leading end piece protrusions engage with the sidewall recesses of the connector, electrically connecting the external conductor and the connector; and the core conductor is inserted into the female pin first insertion opening from the leading end side of the core conductor so that the leading end side of the core conductor engages with the female pin first insertion opening, electrically connecting the core conductor and the female pin.

Description

Connector, connector assembly, and transmission line connection system

[0001] The present invention relates to a connector, a connector assembly, and a transmission line connection system, and in particular to a connector that constitutes part of a transmission line, a connector assembly that constitutes part of a transmission line, a transmission line connection system that includes at least the connector, a coaxial cable, and a relay connector, and a transmission line connection system that includes at least the connector assembly, a coaxial cable, and a relay connector.

[0002] BACKGROUND ART Conventionally, research and development has been actively conducted to improve electrical characteristics by making extensive use of coaxial cables and the like that constitute transmission lines in wiring, for example, in electronic devices, information and communication devices, industrial devices, measuring devices, and the like.

[0003] For example, Patent Document 1 proposes a technology relating to a relay connector for electrically connecting a cable including at least one internal conductor to an FPC (Flexible Printed Circuit) having a terminal portion with an exposed conductor portion.

[0004] This technology is characterized by a housing having a through hole through which an internal conductor and an exposed conductor portion can be selectively inserted in correspondence with each other, and is configured so that the internal conductor and the corresponding exposed conductor portion are engaged within the through hole and a pressure contact force is applied to the engaged portion.

[0005] Japanese Patent Application Laid-Open No. 2000-182689

[0006] However, the technique proposed in Patent Document 1 may not be able to further improve the electrical characteristics of the transmission line or to further reduce the density and size of the transmission line.

[0007] The present invention has been made in view of the above circumstances, and its main object is to provide a connector and connector assembly that can further improve the electrical characteristics of a transmission line and further reduce the density and size of the transmission line, as well as a transmission line connection system that includes at least the connector, a coaxial cable, and a relay connector, and a transmission line connection system that includes at least the connector assembly, a coaxial cable, and a relay connector.

[0008] As a result of intensive research conducted by the inventors to achieve the above-mentioned object, they succeeded in further improving the electrical characteristics of the transmission line and achieving further high density and miniaturization of the transmission line, thereby completing the present invention.

[0009] That is, the present invention provides a connector having, as a first side surface, a cylindrical side wall portion, a first insertion portion formed at one end of the cylindrical side wall portion, a second insertion portion formed at the other end of the cylindrical side wall portion opposite the one end of the cylindrical side wall portion, and at least one side wall protrusion provided on the inner wall of the cylindrical side wall portion, protruding inward from the inner wall and formed so as to go around the inner wall, and penetrating from the first insertion portion to the second insertion portion.

[0010] In the first side connector of the present invention, the connector may have at least one side wall recess provided on the inner wall of the cylindrical side wall portion, recessed outward from the inner wall and formed around the inner wall, and the at least one side wall protrusion and the at least one side wall recess may be arranged in order from the first insertion portion side.

[0011] In the first side connector of the present invention, the length of the at least one side wall convex portion in the direction penetrating from the first insertion portion to the second insertion portion may be greater than the length of the at least one side wall concave portion in the direction penetrating from the first insertion portion to the second insertion portion.

[0012] The connector according to the first aspect of the present invention may be a superconductor.

[0013] The present invention also provides, as a second aspect, a connector assembly having a plurality of connectors, each of the plurality of connectors having a cylindrical side wall portion, a first insertion portion formed at one end of the cylindrical side wall portion, a second insertion portion formed at the other end of the cylindrical side wall portion opposite the one end of the cylindrical side wall portion, and at least one side wall protrusion provided on the inner wall of the cylindrical side wall portion, protruding inward from the inner wall and formed so as to go around the inner wall, the connector assembly penetrating from the first insertion portion to the second insertion portion, and the plurality of connectors being formed in a honeycomb shape when viewed in a plan view from the first insertion portion side.

[0014] In the connector assembly of the second aspect of the present invention, each of the plurality of connectors may have at least one side wall recess provided on the inner wall of the cylindrical side wall portion, recessed outward from the inner wall and formed around the inner wall, and the at least one side wall protrusion and the at least one side wall recess may be arranged in order from the first insertion portion side.

[0015] In the connector assembly of the second aspect of the present invention, the length of at least one side wall convex portion in the direction penetrating from the first insertion portion to the second insertion portion of each of the plurality of connectors may be greater than the length of at least one side wall concave portion in the direction penetrating from the first insertion portion to the second insertion portion.

[0016] In the connector assembly according to the second aspect of the present invention, each of the plurality of connectors may be a superconductor.

[0017] Furthermore, in a third aspect of the present invention, there is provided a connector comprising a connector, a first coaxial cable, a second coaxial cable, and a relay connector, the connector having a cylindrical side wall portion, a first insertion portion formed at one end of the cylindrical side wall portion, a second insertion portion formed at the other end of the cylindrical side wall portion opposite to the one end of the cylindrical side wall portion, a side wall convex portion provided on the inner wall of the cylindrical side wall portion, protruding inward from the inner wall and formed to surround the inner wall, and a side wall concave portion provided on the inner wall of the cylindrical side wall portion, recessed outward from the inner wall and formed to surround the inner wall, the connector penetrating from the first insertion portion to the second insertion portion, the side wall convex portion and the side wall concave portion being arranged in order from the first insertion portion side, and the first coaxial cable the second coaxial cable has a first central conductor, a first insulator disposed around the outer periphery of the first central conductor, and a first outer conductor disposed around the outer periphery of the first insulator; the second coaxial cable has a second central conductor, a second insulator disposed around the outer periphery of the second central conductor, and a second outer conductor disposed around the outer periphery of the second insulator; the relay connector has a cylindrical main body, a plurality of tip pieces disposed at one end of the cylindrical main body and configured to form a relay connector first insertion portion on the side opposite to the cylindrical main body side, and a relay connector second insertion portion formed at the other end of the cylindrical main body facing the one end of the cylindrical main body, and a tip piece convex portion protruding outward is formed at the tip of each of the plurality of tip pieces; the first coaxial cable is inserted into the first insertion portion of the connector; and the relay connector first insertion portion of the relay connector is inserted into the second insertion portion of the connector. The second coaxial cable is inserted into a second insertion portion of the relay connector of the relay connector, the side wall convex portion of the connector and the first outer conductor of the first coaxial cable are electrically connected, and the tip piece convex portion of the relay connector is fitted into the side wall concave portion of the connector, thereby electrically connecting the side wall concave portion of the connector and the tip piece convex portion of the relay connector.

[0018] In the transmission line connection system of the third aspect of the present invention, the second outer conductor of the second coaxial cable and the main body of the relay connector may be electrically connected, and the first outer conductor of the first coaxial cable and the second outer conductor of the second coaxial cable may be electrically connected.

[0019] In the transmission line connection system of the third aspect according to the present invention, the relay connector may have a relay connector insertion port arranged inside one end side of the cylindrical main body, the first center conductor of the first coaxial cable may be inserted into the relay connector insertion port, and the relay connector insertion port and the second center conductor of the second coaxial cable may be electrically connected, and the first center conductor of the first coaxial cable and the second center conductor of the second coaxial cable may be electrically connected via the relay connector insertion port.

[0020] In the transmission line connection system of the third aspect of the present invention, the relay connector may have a relay connector insertion port arranged inside one end side of the cylindrical main body, a pin may be provided at a tip of the first center conductor of the first coaxial cable, the pin may be inserted into the relay connector insertion port, the relay connector insertion port and the second center conductor of the second coaxial cable may be electrically connected, and the first center conductor of the first coaxial cable and the second center conductor of the second coaxial cable may be electrically connected via the relay connector insertion port and the pin.

[0021] Furthermore, in a fourth aspect of the present invention, there is provided a connector assembly comprising a connector assembly, a plurality of first coaxial cables, a plurality of second coaxial cables, and a plurality of relay connectors, wherein each connector of the connector assembly has a cylindrical side wall portion, a first insertion portion formed at one end of the cylindrical side wall portion, a second insertion portion formed at the other end of the cylindrical side wall portion opposite to the one end of the cylindrical side wall portion, a side wall convex portion provided on the inner wall of the cylindrical side wall portion, protruding inward from the inner wall and formed to surround the inner wall, and a side wall concave portion provided on the inner wall of the cylindrical side wall portion, recessed outward from the inner wall and formed to surround the inner wall, and penetrates from the first insertion portion to the second insertion portion, and the side wall convex portion and the side wall concave portion are arranged in order from the first insertion portion side, and each first coaxial cable of the plurality of first coaxial cables each of the plurality of second coaxial cables has a first central conductor, a first insulator disposed around the outer periphery of the first central conductor, and a first outer conductor disposed around the outer periphery of the first insulator; each of the plurality of second coaxial cables has a second central conductor, a second insulator disposed around the outer periphery of the second central conductor, and a second outer conductor disposed around the outer periphery of the second insulator; each of the plurality of relay connectors has a cylindrical main body, a plurality of tip pieces disposed at one end of the cylindrical main body and having a relay connector first insertion portion formed on the side opposite to the cylindrical main body side, and a relay connector second insertion portion configured to form the other end of the cylindrical main body opposing the one end of the cylindrical main body; a tip piece protrusion protruding outward is formed at the tip end of each of the plurality of tip pieces; each of the first coaxial cables is inserted into the first insertion portion of its respective connector; The transmission line connection system includes a first relay connector insertion portion of each of the relay connectors inserted into the second insertion portion of the respective connector, a second coaxial cable inserted into the second relay connector insertion portion of each of the relay connectors, the side wall convex portion of each of the connectors and the first outer conductor of each of the first coaxial cables being electrically connected, and a tip piece convex portion of each of the relay connectors being fitted into the side wall concave portion of each of the connectors, thereby electrically connecting the side wall concave portion of each of the connectors and the tip piece convex portion of each of the relay connectors.

[0022] In the transmission line connection system of the fourth aspect according to the present invention, the second outer conductor of each of the second coaxial cables may be electrically connected to the main body of each of the relay connectors, and the first outer conductor of each of the first coaxial cables may be electrically connected to the second outer conductor of each of the second coaxial cables.

[0023] In the transmission line connection system of the fourth aspect according to the present invention, each of the relay connectors may have a relay connector insertion port arranged inside one end side of the cylindrical main body, the first center conductor of each of the first coaxial cables may be inserted into the relay connector insertion port, and the relay connector insertion port may be electrically connected to the second center conductor of each of the second coaxial cables, and the first center conductor of each of the first coaxial cables may be electrically connected to the second center conductor of each of the second coaxial cables via the relay connector insertion port.

[0024] In the transmission line connection system of the fourth aspect according to the present invention, each of the relay connectors may have a relay connector insertion port arranged inside one end side of the cylindrical main body, a pin may be provided at a tip of the first center conductor of each of the first coaxial cables, the pin may be inserted into the relay connector insertion port, and the relay connector insertion port may be electrically connected to the second center conductor of each of the second coaxial cables, and the first center conductor of each of the first coaxial cables may be electrically connected to the second center conductor of each of the second coaxial cables via the relay connector insertion port and the pin.

[0025] In a fifth aspect of the present invention, there is provided a connector, a coaxial cable, and a female pin, the connector comprising: a cylindrical side wall portion; a first connector insertion portion formed at one end of the cylindrical side wall portion; a second connector insertion portion formed at the other end of the cylindrical side wall portion opposite to the one end of the cylindrical side wall portion; and a side wall recess provided on an inner wall of the cylindrical side wall portion, the side wall recess being recessed outward from the inner wall and formed to surround the inner wall, the coaxial cable passing from the first connector insertion portion to the second connector insertion portion, the coaxial cable having: a center conductor, an insulator disposed on the outer periphery of the center conductor, and an outer conductor disposed on the outer periphery of the insulator, the female pin having: a first female pin insertion opening formed at one end of the female pin in a longitudinal direction which is a direction in which the connector passes through; and a second female pin insertion opening formed at the other end of the female pin in the longitudinal direction opposite to the one end of the female pin in the longitudinal direction, a transmission line connection system in which a plurality of outer conductor split end pieces split in the longitudinal direction of the coaxial cable are formed on the tip side of the outer conductor, and each of the plurality of outer conductor split end pieces has an outer conductor split end piece convex portion protruding outward; the coaxial cable is inserted into the connector first insertion portion from the tip side of the coaxial cable; the female pin is disposed inside the cylindrical side wall portion of the connector, and the outer conductor split end piece convex portion is engaged with the side wall concave portion of the connector to electrically connect the outer conductor and the connector; and the center conductor is inserted into the female pin first insertion port from the tip side of the center conductor, and the center conductor on the tip side is engaged with the female pin first insertion port to electrically connect the center conductor and the female pin.

[0026] In the transmission line connection system according to the fifth aspect of the present invention, a plurality of first split tip pieces split in the longitudinal direction of the female pin may be formed on one end side of the female pin in the longitudinal direction.

[0027] In the transmission line connection system according to the fifth aspect of the present invention, a tip portion may be provided at the tip of the center conductor, and the diameter of the tip portion may gradually decrease toward the most distal end of the tip portion, which is on the opposite side from the center conductor.

[0028] In the transmission line connection system according to the fifth aspect of the present invention, the diameter of the center conductor on the tip side may gradually decrease toward the most distal end of the center conductor.

[0029] In addition, according to a sixth aspect of the present invention, there is provided a connector, a coaxial cable, a relay connector, and a male pin, the connector comprising: a cylindrical side wall portion; a first insertion portion formed at one end of the cylindrical side wall portion; a second insertion portion formed at the other end of the cylindrical side wall portion opposite the one end of the cylindrical side wall portion; and a side wall recess provided on an inner wall of the cylindrical side wall portion, recessed outward from the inner wall and formed so as to surround the inner wall, the coaxial cable passing through from the first insertion portion to the second insertion portion; the coaxial cable having: a central conductor, an insulator disposed on the outer periphery of the central conductor, and an outer conductor disposed on the outer periphery of the insulator; and the relay connector comprising: a cylindrical main body portion; and a plurality of relay connector tip pieces disposed at one end of the cylindrical main body portion, extending outward from the cylindrical main body portion on the opposite side to the cylindrical main body portion, and configured to form the relay connector first insertion portion; a relay connector second insertion portion formed at one end of the cylindrical main body and the other end of the cylindrical main body opposing the one end of the cylindrical main body, a relay connector tip piece convex portion protruding outward is formed at the tip of each of the plurality of tip pieces, the male pin extends in the direction of penetration of the connector, the male pin is arranged inside the cylindrical side wall of the connector, and the relay connector tip piece convex portion is engaged with the side wall recess of the connector, thereby electrically connecting the relay connector and the connector, the coaxial cable is inserted into the relay connector second insertion portion from the tip side of the coaxial cable, and the center conductor and the male pin are electrically connected.

[0030] In the transmission line connection system of the sixth aspect of the present invention, in at least a partial region in the longitudinal direction of the male pin, which is the direction in which the connector is penetrated, an insulating material may be arranged on the outer periphery of the male pin, a conductor may be arranged on the outer periphery of the insulating material, and the conductor may be connected to the inner wall of the cylindrical side wall portion of the connector.

[0031] In the transmission line connection system of the sixth aspect according to the present invention, the relay connector may have a relay connector insertion port arranged inside the relay connector on one end side of the tubular main body, the male pin may be inserted into the relay connector insertion port from the tip side of one end of the male pin in the longitudinal direction, which is the penetration direction of the connector, the relay connector insertion port may be electrically connected to the center conductor of the coaxial cable, and the male pin may be electrically connected to the center conductor of the coaxial cable via the relay connector insertion port.

[0032] According to the present invention, it is possible to further improve the electrical characteristics of a transmission line and further reduce the density and size of the transmission line. Note that the effects described here are not necessarily limited to those described herein and may be any of the effects described in this specification.

[0033] FIG. 1 is a side view showing a configuration example of a connector according to a first embodiment to which the present invention is applied. FIG. 2 is a diagram for explaining Example 1 of a transmission line connection system according to a second embodiment to which the present invention is applied. FIG. 3 is a cross-sectional side view showing an example of a coaxial cable. FIG. 4 is a diagram for explaining Example 1 of a transmission line connection system according to a second embodiment to which the present invention is applied. FIG. 5 is a diagram showing a configuration example of a connector assembly according to a third embodiment to which the present invention is applied. FIG. 6 is a diagram for explaining Example 2 of a transmission line connection system according to a fourth embodiment to which the present invention is applied. FIG. 7 is a diagram for explaining Example 3 of a transmission line connection system according to a fifth embodiment to which the present invention is applied. FIG. 8 is a diagram for explaining Example 4 of a transmission line connection system according to a sixth embodiment to which the present invention is applied. FIG. 9 is a diagram for explaining Example 5 of a transmission line connection system according to a seventh embodiment to which the present invention is applied. FIG. 10 is a diagram for explaining Example 6 of a transmission line connection system according to an eighth embodiment to which the present invention is applied.

[0034] A preferred embodiment for carrying out the present invention will be described below. The embodiment described below shows an example of a typical embodiment of the present invention, and the scope of the present invention should not be construed as being narrow.

[0035] Unless otherwise specified, in the drawings, "upper" means the upper direction or upper side in the drawing, "lower" means the lower direction or lower side in the drawing, "left" means the left direction or left side in the drawing, and "right" means the right direction or right side in the drawing. Furthermore, in the drawings, the same or equivalent elements or members are given the same reference numerals, and redundant explanations may be omitted.

[0036] The description will be given in the following order: 1. First embodiment (example of connector) 2. Second embodiment (example 1 of transmission line connection system) 3. Third embodiment (example of connector assembly) 4. Fourth embodiment (example 2 of transmission line connection system) 5. Fifth embodiment (example 3 of transmission line connection system) 6. Sixth embodiment (example 4 of transmission line connection system) 7. Seventh embodiment (example 5 of transmission line connection system) 8. Eighth embodiment (example 6 of transmission line connection system)

[0037] 1. First Embodiment (Example of Connector) A connector according to a first embodiment (example of connector) of the present invention will be described with reference to FIGS. 1 and 2. FIG.

[0038] Fig. 1 is a side view showing an example of the configuration of a connector 100 according to a first embodiment of the present invention. Fig. 2 is a diagram for explaining a transmission line connection system 1000 according to a second embodiment of the present invention.

[0039] As shown in FIG. 1, the connector 100 has a cylindrical side wall portion 1, a first insertion portion 2 formed at one end of the cylindrical side wall portion 1 (left side in FIG. 1), and a second insertion portion 3 formed at the other end of the cylindrical side wall portion 1 opposite the one end of the cylindrical side wall portion 1 (right side in FIG. 1).

[0040] 2A and 2B , connector 100 has one sidewall protrusion 4 provided on the inner wall of cylindrical sidewall 1, protruding inward from the inner wall and surrounding the inner wall. Connector 100 also has one sidewall recess 5 provided on the inner wall of cylindrical sidewall 1, recessed outward from the inner wall and surrounding the inner wall. Connector 100 extends from first insertion portion 2 to second insertion portion 3 (or may be considered to extend from second insertion portion 3 to first insertion portion 2). Forming sidewall protrusion 4 with a certain thickness increases the strength of connector 100.

[0041] As shown in FIGS. 2A and 2B, the side wall convex portion 4 and the side wall concave portion 5 are arranged in this order from the first insertion portion 2 side.

[0042] In addition, the length of the side wall convex portion 4 in the direction penetrating from the first insertion portion 2 to the second insertion portion 3 is greater than the length of the side wall concave portion 5 in the direction penetrating from the first insertion portion 2 to the second insertion portion 3.

[0043] Although not shown, connector 100 may have two side wall protrusions 4 provided on the inner wall of cylindrical side wall portion 1, protruding inward from the inner wall and surrounding the inner wall. In this case, connector 100 does not have one side wall recess 5 provided on the inner wall of cylindrical side wall portion 1, recessed outward from the inner wall and surrounding the inner wall. Then, first coaxial cables 200 are inserted from both first insertion portion 2 and second insertion portion 3, and the two side wall protrusions 4 and first coaxial cables 200 are electrically connected to each other.

[0044] The material of the connector 100 may include at least one selected from the group consisting of stainless steel, beryllium copper, phosphor bronze, and brass. If the connector 100 includes stainless steel, it will provide thermal insulation and corrosion resistance, and if it includes beryllium copper or phosphor bronze, it will provide thermal insulation. Furthermore, if the connector 100 includes phosphor bronze or brass, it will be non-magnetic. The connector 100 may also be a superconductor. Furthermore, the connector 100 may include a superconducting material.

[0045] The above description of the first embodiment (example of a connector) of the present invention can be applied to the second to eighth embodiments of the present invention described below, unless there is any particular technical contradiction.

[0046] 2. Second Embodiment (Example 1 of Transmission Line Connection System) A transmission line connection system according to a second embodiment (example 1 of transmission line connection system) of the present invention will be described with reference to FIGS. 2 to 4. FIG.

[0047] As described above, FIG. 2 is a diagram for explaining the transmission line connection system 1000 according to the second embodiment of the present invention.

[0048] 2A is a diagram showing a state before the first coaxial cable 200 and the relay connector 300 are electrically connected to the connector 100 in the transmission line connection system 1000. That is, this is a state before the first coaxial cable 200 is inserted into the first insertion portion 2 of the connector 100, and before the relay connector 300 is inserted into the second insertion portion 3 of the connector 100. Note that in FIG. 2A, the connector 100 and the first coaxial cable 200 are shown in side cross-sectional views, and the relay connector 300 is shown in a side view.

[0049] 2B is a diagram showing a state after the first coaxial cable 200 and the relay connector 300 are electrically connected to the connector 100 in the transmission line connection system 1000. In FIG. 2B, the connector 100 and the first coaxial cable 200 are shown in side cross-sectional view, and the relay connector 300 is shown in side cross-sectional view.

[0050] The first coaxial cable 200 has a first central conductor 201, a first insulator 204 disposed around the first central conductor 201, and a first outer conductor 202 disposed around the first insulator 204. A pin 203 is provided at the tip of the first central conductor 201 (the upper end of the first central conductor 201 in FIG. 2 ). The first coaxial cable 200 may include a superconductor, or may include any other material as long as it has electrical conductivity.

[0051] The first central conductor 201 may comprise annealed copper wire, the first insulator 204 may comprise a polymer material such as polyethylene, and the first outer conductor 202 may comprise braided copper wire.

[0052] The first central conductor 201, the first outer conductor 202, and the pin 203 may each contain at least one material selected from the group consisting of stainless steel, beryllium copper, phosphor bronze, and brass. When the first central conductor 201, the first outer conductor 202, and the pin 203 each contain stainless steel, thermal insulation and corrosion resistance are achieved, and when they contain beryllium copper or phosphor bronze, thermal insulation is achieved. Furthermore, when the first central conductor 201, the first outer conductor 202, and the pin 203 each contain phosphor bronze or brass, they become nonmagnetic.

[0053] The relay connector 300 has a cylindrical main body 301, a plurality of tip pieces 303-305 arranged at one end of the cylindrical main body 301 (the left end of the main body 301 in FIG. 2) and configured to form a relay connector first insertion portion 306 on the side opposite the cylindrical main body 301, and a relay connector second insertion portion 302 formed at the other end of the cylindrical main body 301 (the right end of the main body 301 in FIG. 2) facing the one end of the cylindrical main body 301 (the left end of the main body 301 in FIG. 2). Each of the plurality of tip pieces 303-305 may have spring properties. If each of the plurality of tip pieces 333-335 has spring properties, the plurality of tip pieces 303-305 will bend further inward (note that even if they do not have spring properties, they will bend further inward, but if they have spring properties, they will bend further), and the diameter of the tip side of the relay connector 300 will be smaller, making it easier to insert into the first connector insertion portion 3 of the connector 100. After insertion into the first connector insertion portion 3, the plurality of tip pieces 303-305 will no longer bend inward (note that even if they do not have spring properties, they will no longer bend inward and will return to their original shape, but if they have spring properties, they will no longer bend and their returning force will be even greater (the speed of returning to their original shape will be even faster) compared to when they do not have spring properties), and within the connector 100, the size of the diameter of the tip side of the relay connector 300 will return to its original size, and the coupling force between the relay connector 300 and the connector 100 will be greater. At the tip of each of the plurality of tip pieces 303 to 305, tip piece projections 303-1 to 305-1 are formed, which protrude outward.

[0054] The material of the relay connector 300 may include at least one selected from the group consisting of stainless steel, beryllium copper, phosphor bronze, and brass. If the relay connector 300 includes stainless steel, it will have heat insulating properties and corrosion resistance, and if it includes beryllium copper or phosphor bronze, it will have a heat insulating effect. Furthermore, if the relay connector 300 includes phosphor bronze or brass, it will be non-magnetic. The relay connector 300 may include a highly thermally conductive material.

[0055] The second coaxial cable 400 has a second central conductor 401, a second insulator 404 disposed around the second central conductor 401, and a second outer conductor 402 disposed around the second insulator 404. The second coaxial cable 400 may include a superconductor, or may include any other material as long as it has electrical conductivity.

[0056] The second central conductor 401 may comprise annealed copper wire, the first insulator 404 may comprise a polymer material such as polyethylene, and the first outer conductor 402 may comprise braided copper wire.

[0057] The first central conductor 401 and the first outer conductor 402 may each contain at least one material selected from the group consisting of stainless steel, beryllium copper, phosphor bronze, and brass. When the first central conductor 401 and the first outer conductor 402 each contain stainless steel, thermal insulation and corrosion resistance are obtained, and when they contain beryllium copper or phosphor bronze, thermal insulation is achieved. Furthermore, when the first central conductor 401 and the first outer conductor 402 each contain phosphor bronze or brass, they become nonmagnetic.

[0058] 2B , the first coaxial cable 200 is inserted into the first insertion portion 2 of the connector 100 from the tip side of the first coaxial cable 200 (the right end side of the coaxial cable 200 in FIG. 2B ), and the relay connector first insertion portion 306 of the relay connector 300 is inserted into the second insertion portion 3 of the connector 100. The second coaxial cable 400 is inserted into the relay connector second insertion portion 302 of the relay connector 300, and the side wall convex portion 4 of the connector 100 and the first outer conductor 202 of the first coaxial cable are electrically connected. Furthermore, the tip piece convex portions 303-1 and 305-1 of the relay connector 300 (tip piece convex portion 304-1 is not shown) are fitted into the side wall concave portion 5 of the connector 100, and the side wall concave portion 5 of the connector 100 and the tip piece convex portions 303-1 and 305-1 of the relay connector 300 are electrically connected.

[0059] The second outer conductor 401 of the second coaxial cable 400 is electrically connected to the main body 301 of the relay connector 300, and the first outer conductor 201 of the first coaxial cable 200 is electrically connected to the second outer conductor 401 of the second coaxial cable 400.

[0060] The relay connector 300 has a relay connector insertion port 307 arranged inside one end side of a cylindrical main body 301, and a pin 203 having a pin tip portion 203-1 is provided at the tip of the first central conductor 201 of the first coaxial cable 200, and the pin tip portion 203-1 (pin 203) is inserted into the relay connector insertion port 307, electrically connecting the relay connector insertion port 307 to the second central conductor 401 of the second coaxial cable 400, and the first central conductor 201 of the first coaxial cable 200 to the second central conductor 401 of the second coaxial cable 400 via the relay connector insertion port 307 and the pin 203.

[0061] In the transmission line connection system 1000, the first coaxial cable 200 can be made a superconductor, and the relay connector 300 can be made a high thermal conductor. In this case, high-temperature heat generated in the first coaxial cable 200 can be released to the outside (open air) by the relay connector 300, which is a high thermal conductor.

[0062] FIG. 3 is a cross-sectional side view showing an example of a coaxial cable, and more specifically, a cross-sectional side view showing a first coaxial cable 500.

[0063] The first coaxial cable 500 has a first central conductor 501, a first insulator 504 disposed around the first central conductor 501, and a first outer conductor 502 disposed around the first insulator 504. The first coaxial cable 500 may include a superconductor or any other material as long as it has electrical conductivity. Structurally, the first coaxial cable 500 is different from the first coaxial cable 200 in that no pin is provided at the tip of the first central conductor 501 (the right end of the first central conductor 501 in FIG. 3 ).

[0064] The second central conductor 501 may comprise annealed copper wire, the first insulator 504 may comprise a polymer material such as polyethylene, and the first outer conductor 502 may comprise braided copper wire.

[0065] The first central conductor 501 and the first outer conductor 502 may each contain at least one material selected from the group consisting of stainless steel, beryllium copper, phosphor bronze, and brass. When the first central conductor 501 and the first outer conductor 502 each contain stainless steel, thermal insulation and corrosion resistance are obtained, and when they contain beryllium copper or phosphor bronze, thermal insulation is achieved. Furthermore, when the first central conductor 501 and the first outer conductor 502 each contain phosphor bronze or brass, they become nonmagnetic.

[0066] FIG. 4 is a diagram for explaining a transmission line connection system 2000 according to the second embodiment of the present invention.

[0067] 4 is a diagram showing a state before the first coaxial cable 500 and the relay connector 300 are electrically connected to the connector 100 in the transmission line connection system 2000. That is, this is a state before the first coaxial cable 500 is inserted into the first insertion portion 2 of the connector 100, and before the relay connector 300 is inserted into the second insertion portion 3 of the connector 100. Note that in FIG. 4, the connector 100 and the first coaxial cable 500 are shown in side cross section, and the relay connector 300 is shown in side view.

[0068] Although Figure 4 does not show the state after the first coaxial cable 500 and the relay connector 300 have been electrically connected to the connector 100 in the transmission line connection system 2000, the relay connector 300 has a relay connector insertion port 307 arranged inside one end side of the cylindrical main body 301, the first center conductor 501 of the first coaxial cable 500 is inserted into the relay connector insertion port 307, and the relay connector insertion port 307 and the second center conductor 401 of the second coaxial cable 400 are electrically connected, and the first center conductor 501 of the first coaxial cable 500 and the second center conductor 401 of the second coaxial cable 400 are electrically connected via the relay connector insertion port 307.

[0069] Since the first center conductor 501 does not have a pin, the connector 100 can be made even smaller in size. Furthermore, for example, if the first coaxial cable 500 is a superconductor, the connector 100 can also be made a superconductor. In this case, since a pin is not provided, the center conductor 501 can be made thinner, and the thickness of the outer conductor 502 can be increased. As a result, there is no need to remove the outer conductor 502 of the first coaxial cable 500 or to reduce the thickness of the outer conductor 502, which allows for further improvement in the electrical characteristics of the transmission line.

[0070] In the transmission line connection system 2000, the first coaxial cable 500 can be made a superconductor, and the relay connector 300 can be made a high thermal conductor. In this case, high-temperature heat generated in the first coaxial cable 500 can be released to the outside (open air) by the relay connector 300, which is a high thermal conductor.

[0071] The above description of the second embodiment (Example 1 of the transmission line connection system) according to the present invention can be applied to the first embodiment according to the present invention described above and the third to eighth embodiments according to the present invention described below, unless there is any particular technical contradiction.

[0072] 3. Third Embodiment (Example of Connector Assembly) A connector assembly according to a third embodiment (example of connector assembly) of the present invention will be described with reference to FIG.

[0073] 5A and 5B are diagrams showing an example of the configuration of a connector assembly according to a third embodiment of the present invention, and in detail, Fig. 5A is a plan view of a connector assembly 600 made up of a plurality of connectors 100, as viewed from the first insertion portion 2 side of the connectors 100. And Fig. 5B is a cross-sectional view taken along line ST shown in Fig. 5A.

[0074] 5A, in connector assembly 600, a plurality of connectors 100 are formed in a honeycomb pattern on a metallic circular plane having a diameter R when viewed from the first insertion portion 2 side. Although not shown, connector assembly 600 may have a plurality of connectors 100 formed in a matrix (including linear arrays in the left-right direction in FIG. 5 or linear arrays in the up-down direction in FIG. 5) on a rectangular plane when viewed from the first insertion portion 2 side.

[0075] As shown in Figure 5B, the connector 1 is arranged in a straight line in the left-right direction in Figure 5B, and the first insertion portion 2 into which the first coaxial cable 200 or the first coaxial cable 500 is inserted is arranged on the upper side of Figure 5B, and the second insertion portion 3 into which the relay connector 300 is inserted is arranged on the lower side of Figure 5B.

[0076] The above description of the third embodiment of the present invention (an example of a connector assembly) can be applied to the first and second embodiments of the present invention described above and the fourth to eighth embodiments of the present invention described below, unless there is any particular technical contradiction.

[0077] 4. Fourth Embodiment (Second Example of Transmission Line Connection System) A transmission line connection system according to a fourth embodiment (second example of transmission line connection system) of the present invention will be described with reference to FIG.

[0078] FIG. 6 is a diagram for explaining a transmission line connection system 3000 according to a fourth embodiment of the present invention.

[0079] 6 is a diagram showing the portion indicated by reference symbol U in FIG. 5B after the first coaxial cable 200 is inserted into the first insertion portion 2 of the connector 100 from top to bottom in FIG. 6, thereby electrically connecting the connector 100 and the first coaxial cable 200. Note that FIG. 6 does not show the state after the relay connector 300 and the second coaxial cable 400 are inserted into the second insertion portion 3 of the connector 100 from bottom to top in FIG. 6, thereby electrically connecting the connector 100 with the relay connector 300 and the second coaxial cable 400.

[0080] As shown in FIG. 6, the side wall protrusions 4 of the two connectors 100 are electrically connected to the first outer conductors 202 of the two first coaxial cables 200, respectively.

[0081] In the transmission line connection system 3000, the first coaxial cable 200 can be electrically connected simultaneously to the multiple connectors 100 that make up the connector assembly 600, thereby achieving further improvements in the electrical characteristics of the transmission line (coaxial cable, etc.) and further density and miniaturization of the transmission line.

[0082] In the transmission line connection system 3000, the plurality of first coaxial cables 200 can be made superconductors, and the plurality of relay connectors (not shown) can be made high thermal conductors. In this case, high-temperature heat generated in the plurality of first coaxial cables 200 can be released to the outside (open air) by the plurality of relay connectors (not shown) that are high thermal conductors.

[0083] The above description of the fourth embodiment (Example 2 of the transmission line connection system) according to the present invention can be applied to the first to third embodiments according to the present invention described above and the fifth to eighth embodiments according to the present invention described below, unless there is any particular technical contradiction.

[0084] 5. Fifth Embodiment (Third Example of Transmission Line Connection System) A transmission line connection system according to a fifth embodiment (third example of transmission line connection system) of the present invention will be described with reference to FIG.

[0085] FIG. 7 is a diagram for explaining Example 3 of a transmission line connection system according to the fifth embodiment to which the present invention is applied, and more specifically, a diagram for explaining a transmission line connection system 4000 according to the fifth embodiment of the present invention.

[0086] 7 shows a state before the first coaxial cable 270 and the second coaxial cable 470 are electrically connected to the connector 101 and the female pin 700 disposed inside the cylindrical side wall portion 11 of the connector 101 in the transmission line connection system 4000. That is, this is a state before the first coaxial cable 270 is inserted into the first connector insertion portion 20 of the connector 101, and a state before the second coaxial cable 470 is inserted into the second connector insertion portion 30 of the connector 101. Note that in FIG. 7, the connector 101 is shown in a side cross-sectional view, and the first coaxial cable 270 and the second coaxial cable 470 are shown in a side view.

[0087] As described above, the connector 101 has the cylindrical side wall portion 11, the connector first insertion portion 20, and the connector second insertion portion 30, and further has side wall recesses 51 and 52 provided on the inner wall 11-1 of the cylindrical side wall portion 11, recessed outward from the inner wall 11-1 and formed around the inner wall 11-1. The connector 101 penetrates from the connector first insertion portion 20 to the connector second insertion portion 30.

[0088] The material of the connector 101 may include at least one selected from the group consisting of stainless steel, beryllium copper, phosphor bronze, and brass. If the connector 101 includes stainless steel, it will provide thermal insulation and corrosion resistance, and if it includes beryllium copper or phosphor bronze, it will provide thermal insulation. Furthermore, if the connector 101 includes phosphor bronze or brass, it will be non-magnetic. The connector 101 may also be a superconductor. Furthermore, the connector 101 may include a superconducting material.

[0089] The connector first insertion portion 20 is formed at one end of the cylindrical side wall portion 11 (the left side of the cylindrical side wall portion 11 in Figure 7), and the connector second insertion portion 30 is formed at the other end of the cylindrical side wall portion 11 opposite to the one end of the cylindrical side wall portion 11 (the right side of the cylindrical side wall portion 11 in Figure 7).

[0090] The side wall recess 51 and the side wall recess 52 are formed in this order from one end side of the cylindrical side wall portion 11. That is, the side wall recess 51 is formed on one end side of the cylindrical side wall portion 11, and the side wall recess 52 is formed on the other end side of the cylindrical side wall portion 11.

[0091] The first coaxial cable 270 includes a first center conductor 271, a first insulator (not shown in FIG. 7 ) disposed around the first center conductor 271, and a first outer conductor 272 disposed around the first insulator. The first coaxial cable 270 may include a superconductor or any other electrically conductive material. A tip portion 271-1 is provided at the tip of the first center conductor 271 (the right end of the first center conductor 271 in FIG. 7 ). The diameter of the tip portion 271-1 gradually decreases toward the tip end of the tip portion 271-1, which is the side opposite the first center conductor 271. The tip portion 271-1 may be a tip pin.

[0092] A plurality of first outer conductor split tip pieces 272-1 to 272-3 are formed on the tip side of the first outer conductor 272 (the right end side of the first outer conductor 272 in FIG. 7 ), which are split in the longitudinal direction of the first coaxial cable 270 (first outer conductor 272). Each of the plurality of first outer conductor split tip pieces 272-1 to 272-3 may have spring properties. If each of the plurality of first outer conductor split tip pieces 272-1 to 272-3 has spring properties, the plurality of first outer conductor split tip pieces 272-1 to 272-3 will bend further inward (note that although they will bend inward even if they do not have spring properties, they will bend further if they have spring properties). This reduces the diameter of the tip side of the first coaxial cable 270, making it easier to insert into the first connector insertion portion 20 of the connector 101. After being inserted into the connector first insertion portion 20, the multiple outer conductor first split tip pieces 272-1 to 272-3 no longer bend inward (even if they do not have spring properties, they will no longer bend inward and will return to their original shape, but if they have spring properties, they will no longer bend and the force of returning to their original shape will be even greater (the speed of returning to their original shape will be even faster) compared to when they do not have spring properties), and within the connector 101, the diameter of the tip side of the first coaxial cable 270 returns to its original size, and the coupling force between the first coaxial cable 270 and the connector 101 increases.

[0093] The outer conductor first split tip piece 272-1 has an outer conductor first split tip piece convex portion 273-1 that protrudes outward, the outer conductor first split tip piece 272-2 has an outer conductor first split tip piece convex portion 273-2 that protrudes outward, and the outer conductor first split tip piece 272-3 has an outer conductor first split tip piece convex portion 273-3 that protrudes outward.

[0094] The first center conductor 271 may comprise annealed copper wire, the first insulator may comprise a polymer material such as polyethylene, and the first outer conductor 272 may comprise braided copper wire.

[0095] The first central conductor 271, the first outer conductor 272, the tip portion (tip pin) 271-1, and the female pin 700 may each contain at least one metal selected from the group consisting of stainless steel, beryllium copper, phosphor bronze, and brass. When the first central conductor 271, the first outer conductor 272, the tip portion (tip pin) 271-1, and the female pin 700 each contain stainless steel, thermal insulation and corrosion resistance are obtained, and when they contain beryllium copper or phosphor bronze, thermal insulation is achieved. Furthermore, when the first central conductor 271, the first outer conductor 272, the tip portion (tip pin) 271-1, and the female pin 700 each contain phosphor bronze or brass, they become non-magnetic.

[0096] The second coaxial cable 470 includes a second center conductor 471, a second insulator (not shown in FIG. 7 ) disposed around the second center conductor 471, and a second outer conductor 472 disposed around the second insulator. The second coaxial cable 470 may include a superconductor or any other electrically conductive material. A tip portion 471-1 is provided at the tip of the second center conductor 471 (the left end of the second center conductor 471 in FIG. 7 ). The diameter of the tip portion 471-1 gradually decreases toward the tip end of the tip portion 471-1, which is opposite the second center conductor 471 side. The tip portion 471-1 may be a tip pin.

[0097] A plurality of second outer conductor split tip pieces 472-1 to 472-3 are formed on the tip side of the second outer conductor 472 (the left end side of the second outer conductor 472 in FIG. 7 ), which are split in the longitudinal direction of the second coaxial cable 470 (first outer conductor 472). Each of the second outer conductor split tip pieces 472-1 to 472-3 may have spring properties. If each of the second outer conductor split tip pieces 472-1 to 472-3 has spring properties, the first outer conductor split tip pieces 472-1 to 472-3 will bend further inward (note that although they will bend inward even if they do not have spring properties, they will bend further if they have spring properties). This reduces the diameter of the tip side of the first coaxial cable 470, making it easier to insert into the second connector insertion portion 30 of the connector 101. After being inserted into the connector second insertion portion 30, the multiple outer conductor second split tip pieces 472-1 to 472-3 no longer bend inward (even if they do not have spring properties, they will no longer bend inward and will return to their original shape, but if they have spring properties, they will no longer bend and the force of returning to their original shape will be even greater (the speed of returning to their original shape will be even faster) compared to when they do not have spring properties), and within the connector 101, the diameter at the tip end of the second coaxial cable 470 returns to its original size, and the coupling force between the second coaxial cable 470 and the connector 101 becomes greater.

[0098] The second split tip piece 472-1 of the outer conductor has an outer conductor second split tip piece convex portion 473-1 that protrudes outward, the second split tip piece 472-2 has an outer conductor second split tip piece convex portion 473-2 that protrudes outward, and the second split tip piece 472-3 has an outer conductor second split tip piece convex portion 473-3 that protrudes outward.

[0099] The second center conductor 471 may comprise annealed copper wire, the second insulator may comprise a polymer material such as polyethylene, and the second outer conductor 472 may comprise braided copper wire.

[0100] The second central conductor 471, the second outer conductor 472, and the tip portion (tip pin) 471-1 may each contain at least one material selected from the group consisting of stainless steel, beryllium copper, phosphor bronze, and brass. When the second central conductor 471, the second outer conductor 472, and the tip portion (tip pin) 471-1 each contain stainless steel, thermal insulation and corrosion resistance are obtained, and when they contain beryllium copper or phosphor bronze, thermal insulation is achieved. Furthermore, when the second central conductor 471, the second outer conductor 472, and the tip portion (tip pin) 471-1 each contain phosphor bronze or brass, they become non-magnetic.

[0101] The female pin 700 has a first female pin insertion opening 701 formed at one end of the female pin 700 in the longitudinal direction, which is the penetration direction of the connector 101 (the left end of the female pin 700 in Figure 7), and a second female pin insertion opening 702 formed at the other end of the female pin in the longitudinal direction opposite to the one end of the female pin 700 in the longitudinal direction (the right end of the female pin 700 in Figure 7).

[0102] 7, a plurality of first split female pin tip pieces split in the longitudinal direction of the female pin 700 may be formed at one longitudinal end of the female pin 700, and a plurality of second split female pin tip pieces split in the longitudinal direction of the female pin 700 may be formed at the other longitudinal end of the female pin 700. Each of the plurality of first split female pin tip pieces may have spring properties, and each of the plurality of second split female pin tip pieces may have spring properties. If each of the multiple female pin first split tip pieces and the multiple female pin second split tip pieces has spring properties, the multiple female pin first split tip pieces and the multiple female pin second split tip pieces will bend further outward (note that even if they do not have spring properties, they will bend further outward, but if they have spring properties, they will bend further outward), and the diameters at the tip sides of each of the female pin first insertion port 701 and the female pin second insertion port 702 will become larger, making it easier to insert the first center conductor 271 into the female pin first insertion port 701 and easier to insert the second center conductor 471 into the female pin first insertion port 701. After being inserted into the female pin first insertion port 701 and the female pin second insertion port 702, each of the multiple female pin first split tip pieces and the multiple female pin second split tip pieces no longer bends outward (even if they do not have spring properties, they will no longer bend outward and return to their original shape, but if they have spring properties, they will no longer bend and will have an even greater force to return to their original shape (the speed of returning to their original shape will be even faster) compared to when they do not have spring properties), and the diameters on the tip sides of each of the female pin first insertion port 701 and the female pin second insertion port 702 return to their original shapes, the coupling force between the first center conductor 271 and the female pin 700 increases, and the coupling force between the second center conductor 471 and the female pin 700 increases.

[0103] The first coaxial cable 270 is inserted into the first insertion portion 20 of the connector 101. The outer conductor first split tip piece convex portions 273-1 to 273-3 are respectively fitted into the sidewall recesses 51 of the connector 101, electrically connecting the first outer conductor 272 and the connector 101, and the first center conductor 271 is inserted into the female pin first insertion port 701 from the tip side (and tip portion 271-1) of the first center conductor 271, and the tip side of the first center conductor 271 (and tip portion 271-1) is fitted into the female pin first insertion port 701, electrically connecting the first center conductor 271 and the female pin 700.

[0104] Then, the second coaxial cable 470 is inserted into the second insertion portion 30 of the connector 101. The outer conductor second split tip piece convex portions 473-1 to 273-3 are respectively fitted into the side wall recesses 52 of the connector 101, electrically connecting the second outer conductor 470 and the connector 101, and the second center conductor 471 is inserted into the female pin second insertion port 702 from the tip side (and tip portion 271-1) of the second center conductor 471, and the tip side second center conductor 471 (and tip portion 471-1) is fitted into the female pin second insertion port 702, electrically connecting the second center conductor 471 and the female pin 700.

[0105] The above description of the fifth embodiment (Example 3 of the transmission line connection system) according to the present invention can be applied to the first to fourth embodiments according to the present invention described above and the sixth to eighth embodiments according to the present invention described below, unless there is any particular technical contradiction.

[0106] 6. Sixth Embodiment (Example 4 of Transmission Line Connection System) A transmission line connection system according to a sixth embodiment (example 4 of transmission line connection system) of the present invention will be described with reference to FIG.

[0107] FIG. 8 is a diagram for explaining Example 4 of a transmission line connection system according to the sixth embodiment to which the present invention is applied, and more specifically, a diagram for explaining a transmission line connection system 5000 according to the sixth embodiment of the present invention.

[0108] 8 shows a state in which the first coaxial cable 280 and the second coaxial cable 480 are not yet electrically connected to the connector 101 and the female pin 700 disposed inside the cylindrical side wall portion 11 of the connector 101 in the transmission line connection system 5000. That is, this is the state before the first coaxial cable 280 is inserted into the first insertion portion 20 of the connector 101, and the state before the second coaxial cable 480 is inserted into the second insertion portion 30 of the connector 101. Note that in FIG. 8, the connector 101 is shown in a side cross-sectional view, and the first coaxial cable 280 and the second coaxial cable 480 are shown in a side view.

[0109] As described above, the connector 101 has the cylindrical side wall portion 11, the connector first insertion portion 20, and the connector second insertion portion 30, and further has side wall recesses 51 and 52 provided on the inner wall 11-1 of the cylindrical side wall portion 11, recessed outward from the inner wall 11-1 and formed around the inner wall 11-1. The connector 101 penetrates from the connector first insertion portion 20 to the connector second insertion portion 30.

[0110] The material of the connector 101 may include at least one selected from the group consisting of stainless steel, beryllium copper, phosphor bronze, and brass. If the connector 101 includes stainless steel, it will provide thermal insulation and corrosion resistance, and if it includes beryllium copper or phosphor bronze, it will provide thermal insulation. Furthermore, if the connector 101 includes phosphor bronze or brass, it will be non-magnetic. The connector 101 may also be a superconductor. Furthermore, the connector 101 may include a superconducting material.

[0111] The connector first insertion portion 20 is formed at one end of the cylindrical side wall portion 11 (the left side of the cylindrical side wall portion 11 in Figure 8), and the connector second insertion portion 30 is formed at the other end of the cylindrical side wall portion 11 (the right side of the cylindrical side wall portion 11 in Figure 8) opposite to the one end of the cylindrical side wall portion 11.

[0112] The side wall recess 51 and the side wall recess 52 are formed in this order from one end side of the cylindrical side wall portion 11. That is, the side wall recess 51 is formed on one end side of the cylindrical side wall portion 11, and the side wall recess 52 is formed on the other end side of the cylindrical side wall portion 11.

[0113] The first coaxial cable 280 includes a first central conductor 281, a first insulator (not shown in FIG. 8 ) disposed around the first central conductor 281, and a first outer conductor 282 disposed around the first insulator. The first coaxial cable 280 may include a superconductor or any other electrically conductive material. The diameter of the tip of the first central conductor 281 (the right end of the first central conductor 281 in FIG. 8 ) gradually decreases toward the tip end of the first central conductor 281.

[0114] A plurality of first outer conductor split tip pieces 282-1 to 282-3 are formed on the tip side of the first outer conductor 282 (the right end side of the first outer conductor 282 in FIG. 8 ), which are split in the longitudinal direction of the first coaxial cable 280 (first outer conductor 282). Each of the plurality of first outer conductor split tip pieces 282-1 to 282-3 may have spring properties. If each of the plurality of first outer conductor split tip pieces 282-1 to 282-3 has spring properties, the plurality of first outer conductor split tip pieces 282-1 to 282-3 bend further inward (note that although they would bend inward even without spring properties, they bend further when they have spring properties), thereby reducing the diameter of the tip side of the first coaxial cable 280 and facilitating insertion into the first connector insertion portion 20 of the connector 101. After being inserted into the connector first insertion portion 20, the multiple outer conductor first split tip pieces 282-1 to 282-3 no longer bend inward (even if they do not have spring properties, they will no longer bend inward and will return to their original shape, but if they have spring properties, they will no longer bend and the force of returning to their original shape will be even greater (the speed of returning to their original shape will be even faster) compared to when they do not have spring properties), and within the connector 101, the diameter of the tip side of the first coaxial cable 280 returns to its original size, and the coupling force between the first coaxial cable 280 and the connector 101 increases.

[0115] The outer conductor first split tip piece 282-1 has an outer conductor first split tip piece convex portion 283-1 that protrudes outward, the outer conductor first split tip piece 282-2 has an outer conductor first split tip piece convex portion 283-2 that protrudes outward, and the outer conductor first split tip piece 282-3 has an outer conductor first split tip piece convex portion 283-3 that protrudes outward.

[0116] The first center conductor 281 may comprise annealed copper wire, the first insulator may comprise a polymer material such as polyethylene, and the first outer conductor 282 may comprise braided copper wire.

[0117] The first central conductor 281, the first outer conductor 282, and the female pin 700 may each contain at least one material selected from the group consisting of stainless steel, beryllium copper, phosphor bronze, and brass. When the first central conductor 281, the first outer conductor 282, and the female pin 700 each contain stainless steel, thermal insulation and corrosion resistance are obtained, and when they contain beryllium copper or phosphor bronze, thermal insulation is achieved. Furthermore, when the first central conductor 281, the first outer conductor 282, and the female pin 700 each contain phosphor bronze or brass, they become non-magnetic.

[0118] The second coaxial cable 480 includes a second center conductor 481, a second insulator (not shown in FIG. 8 ) disposed around the second center conductor 481, and a second outer conductor 482 disposed around the second insulator. The second coaxial cable 480 may include a superconductor or any other electrically conductive material. The diameter of the tip of the second center conductor 481 (the left end of the second center conductor 481 in FIG. 8 ) gradually decreases toward the tip end of the second center conductor 481.

[0119] A plurality of second outer conductor split tip pieces 482-1 to 482-3 are formed on the tip side of the second outer conductor 482 (the left end side of the second outer conductor 482 in FIG. 8 ), split in the longitudinal direction of the second coaxial cable 480 (the second outer conductor 482). Each of the second outer conductor split tip pieces 482-1 to 482-3 may have spring properties. If each of the second outer conductor split tip pieces 482-1 to 482-3 has spring properties, the first outer conductor split tip pieces 482-1 to 482-3 will bend further inward (note that although they will bend inward even if they do not have spring properties, they will bend further if they have spring properties). This reduces the diameter of the tip side of the first coaxial cable 480, making it easier to insert into the second connector insertion portion 30 of the connector 101. After being inserted into the connector second insertion portion 30, the multiple outer conductor second split tip pieces 482-1 to 482-3 no longer bend inward (even if they do not have spring properties, they will no longer bend inward and will return to their original shape, but if they have spring properties, they will no longer bend and the force of returning to their original shape will be even greater (the speed of returning to their original shape will be even faster) compared to when they do not have spring properties), and within the connector 101, the diameter at the tip end of the second coaxial cable 480 returns to its original size, and the coupling force between the second coaxial cable 480 and the connector 101 becomes greater.

[0120] The second outer conductor split tip piece 482-1 has an outer conductor second split tip piece convex portion 483-1 that protrudes outward, the second outer conductor split tip piece 482-2 has an outer conductor first split tip piece convex portion 483-2 that protrudes outward, and the second outer conductor split tip piece 482-3 has an outer conductor second split tip piece convex portion 483-3 that protrudes outward.

[0121] The second center conductor 481 may comprise annealed copper wire, the second insulator may comprise a polymer material such as polyethylene, and the second outer conductor 482 may comprise braided copper wire.

[0122] The second central conductor 481 and the second outer conductor 482 may each contain at least one material selected from the group consisting of stainless steel, beryllium copper, phosphor bronze, and brass. When the second central conductor 481 and the second outer conductor 482 each contain stainless steel, thermal insulation and corrosion resistance are obtained, and when they contain beryllium copper or phosphor bronze, thermal insulation is achieved. Furthermore, when the second central conductor 481 and the second outer conductor 482 each contain phosphor bronze or brass, they are nonmagnetic.

[0123] The female pin 700 has a first female pin insertion opening 701 formed at one end of the female pin 700 in the longitudinal direction, which is the direction in which the connector 101 passes through (the left end of the female pin 700 in Figure 8), and a second female pin insertion opening 702 formed at the other end of the female pin in the longitudinal direction opposite to the one end of the female pin 700 in the longitudinal direction (the right end of the female pin 700 in Figure 8).

[0124] 8, a plurality of first split female pin tip pieces split in the longitudinal direction of the female pin 700 may be formed at one longitudinal end of the female pin 700, and a plurality of second split female pin tip pieces split in the longitudinal direction of the female pin 700 may be formed at the other longitudinal end of the female pin 700. Each of the plurality of first split female pin tip pieces may have spring properties, and each of the plurality of second split female pin tip pieces may have spring properties. If each of the multiple female pin first split tip pieces and the multiple female pin second split tip pieces has spring properties, the multiple female pin first split tip pieces and the multiple female pin second split tip pieces will bend further outward (note that even if they do not have spring properties, they will bend further outward, but if they have spring properties, they will bend further outward), and the diameters at the tip sides of each of the female pin first insertion port 701 and the female pin second insertion port 702 will become larger, making it easier to insert the first center conductor 281 into the female pin first insertion port 701 and easier to insert the second center conductor 481 into the female pin first insertion port 701. After being inserted into the female pin first insertion port 701 and the female pin second insertion port 702, each of the multiple female pin first split tip pieces and the multiple female pin second split tip pieces no longer bends outward (even if they do not have spring properties, they will no longer bend outward and return to their original shape, but if they have spring properties, they will no longer bend and will have an even greater force to return to their original shape (the speed at which they return to their original shape will be even faster) compared to when they do not have spring properties), and the diameters on the tip sides of each of the female pin first insertion port 701 and the female pin second insertion port 702 return to their original shapes, the coupling force between the first center conductor 281 and the female pin 700 increases, and the coupling force between the second center conductor 481 and the female pin 700 increases.

[0125] The first coaxial cable 280 is inserted into the first insertion portion 20 of the connector 101. The outer conductor first split tip piece convex portions 283-1 to 283-3 are respectively fitted into the side wall recesses 51 of the connector 101, electrically connecting the first outer conductor 282 and the connector 101, and the first center conductor 281 is inserted from the tip side of the first center conductor 281 into the female pin first insertion port 701, and the tip side of the first center conductor 281 is fitted into the female pin first insertion port 701, electrically connecting the first center conductor 281 and the female pin 700.

[0126] Then, the second coaxial cable 480 is inserted into the second insertion portion 30 of the connector 101. The outer conductor second split tip piece convex portions 483-1 to 483-3 are respectively fitted into the side wall concave portions 52 of the connector 101, electrically connecting the second outer conductor 480 and the connector 101, and the second center conductor 481 is inserted into the female pin second insertion port 702 from the tip side of the second center conductor 481, and the tip side of the second center conductor 481 is fitted into the female pin second insertion port 702, electrically connecting the second center conductor 481 and the female pin 700.

[0127] The contents described above regarding the sixth embodiment (example 4 of the transmission line connection system) according to the present invention can be applied to the first to fifth embodiments according to the present invention described above and the seventh and eighth embodiments according to the present invention described below, unless there is any particular technical contradiction.

[0128] 7. Seventh Embodiment (Example 5 of Transmission Line Connection System) A transmission line connection system according to a seventh embodiment (example 5 of transmission line connection system) of the present invention will be described with reference to FIG.

[0129] FIG. 9 is a diagram for explaining Example 5 of a transmission line connection system according to the seventh embodiment of the present invention, and more specifically, a diagram for explaining a transmission line connection system 6000 according to the seventh embodiment of the present invention.

[0130] 9 shows a state in transmission line connection system 6000 before first relay connector 330 and second relay connector 350 are electrically connected to connector 102 and male pin 800 disposed inside cylindrical side wall portion 12 of connector 102. That is, this is a state before first relay connector 330 is inserted into first insertion portion 21 of connector 102, and before second relay connector 350 is inserted into second insertion portion 31 of connector 102. Note that in FIG. 9, connector 102 is shown in a side cross-sectional view, and first relay connector 330 and second relay connector 350 are shown in a side view.

[0131] As described above, the connector 102 has the cylindrical side wall portion 12, the connector first insertion portion 21, and the connector second insertion portion 31, and further has side wall recesses 53 and 54 that are provided on the inner wall 12-1 of the cylindrical side wall portion 12 and are recessed outward from the inner wall 12-1 so as to surround the inner wall 12-1. The connector 102 penetrates from the connector first insertion portion 21 to the connector second insertion portion 31.

[0132] The material of the connector 102 may include at least one selected from the group consisting of stainless steel, beryllium copper, phosphor bronze, and brass. If the connector 102 includes stainless steel, it will provide thermal insulation and corrosion resistance, and if it includes beryllium copper or phosphor bronze, it will provide thermal insulation. Furthermore, if the connector 102 includes phosphor bronze or brass, it will be non-magnetic. The connector 102 may also be a superconductor. Furthermore, the connector 102 may include a superconducting material.

[0133] The connector first insertion portion 21 is formed at one end of the cylindrical side wall portion 12 (the left side of the cylindrical side wall portion 12 in Figure 9), and the connector second insertion portion 31 is formed at the other end of the cylindrical side wall portion 12 opposite to the one end of the cylindrical side wall portion 12 (the right side of the cylindrical side wall portion 12 in Figure 9).

[0134] The side wall recess 53 and the side wall recess 54 are formed in this order from one end side of the cylindrical side wall portion 12. That is, the side wall recess 53 is formed on one end side of the cylindrical side wall portion 12, and the side wall recess 54 is formed on the other end side of the cylindrical side wall portion 12.

[0135] The first relay connector 330 has a cylindrical main body 331, a plurality of tip pieces 333 to 335 arranged at one end of the cylindrical main body 331 (to the right of the main body 331 in FIG. 9 ) and extending outward from the cylindrical main body 331 on the opposite side from the cylindrical main body 331 side, and configured to form a first relay connector first insertion portion 336, and a first relay connector second insertion portion 332 formed at the other end of the cylindrical main body 331 (to the left of the main body 331 in FIG. 9 ) opposing the one end of the cylindrical main body 331 (to the right of the main body 331 in FIG. 9 ). Each of the plurality of tip pieces 333 to 335 may have spring properties. If each of the plurality of tip pieces 333 to 335 has spring properties, the plurality of tip pieces 333 to 335 will bend further inward (note that even if they do not have spring properties, they will bend further inward, but if they have spring properties, they will bend further), and the diameter of the tip side of the first relay connector 330 will be smaller, making it easier to insert into the first connector insertion portion 21 of the connector 102. After insertion into the first connector insertion portion 21, the plurality of tip pieces 333 to 335 will no longer bend inward (note that even if they do not have spring properties, they will no longer bend inward and will return to their original shape, but if they have spring properties, they will no longer bend and their returning force will be even greater (the speed of returning to their original shape will be even faster)), and within the connector 102, the size of the diameter of the tip side of the first relay connector 330 will return to its original shape, and the coupling force between the first relay connector 330 and the connector 102 will be increased.

[0136] The tip ends of the plurality of tip pieces 333 to 335 are formed with tip piece projections 333-1 to 335-1 that protrude outward.

[0137] The material of the first relay connector 330 and the male pin 800 may include at least one material selected from the group consisting of stainless steel, beryllium copper, phosphor bronze, and brass. If the relay connector 330 includes stainless steel, it will have heat insulating properties and corrosion resistance, and if it includes beryllium copper or phosphor bronze, it will have a heat insulating effect. Furthermore, if the relay connector 330 includes phosphor bronze or brass, it will be non-magnetic. The first relay connector 330 and the male pin 800 may include a highly thermally conductive material.

[0138] The second relay connector 350 has a cylindrical main body 351, a plurality of tip pieces 353 to 355 arranged at one end of the cylindrical main body 351 (the left side of the main body 351 in FIG. 9 ) and extending outward from the cylindrical main body 351 on the opposite side from the cylindrical main body 351 side, and configured to form a second relay connector first insertion portion 356, and a second relay connector second insertion portion 352 formed at the other end of the cylindrical main body 351 (the right side of the main body 351 in FIG. 9 ) opposing the one end of the cylindrical main body 351 (the left side of the main body 351 in FIG. 9 ). Each of the plurality of tip pieces 353 to 355 may have spring properties. If each of the plurality of tip pieces 353 to 355 has spring properties, the plurality of tip pieces 353 to 355 will bend further inward (note that even if they do not have spring properties, they will bend further inward, but if they have spring properties, they will bend further), and the diameter of the tip side of the second relay connector 350 will be smaller, making it easier to insert into the second connector insertion portion 31 of the connector 102. After insertion into the second connector insertion portion 31, the plurality of tip pieces 353 to 355 will no longer bend inward (note that even if they do not have spring properties, they will no longer bend inward and will return to their original shape, but if they have spring properties, they will no longer bend and their returning force will be even greater (the speed of returning to their original shape will be even faster)), and within the connector 102, the size of the diameter of the tip side of the second relay connector 350 will return to its original size, and the coupling force between the second relay connector 350 and the connector 102 will be increased.

[0139] The tip ends of the plurality of tip pieces 353 to 355 are formed with tip piece projections 353-1 to 355-1 that protrude outward.

[0140] The material of the relay connector 350 may include at least one selected from the group consisting of stainless steel, beryllium copper, phosphor bronze, and brass. If the relay connector 350 includes stainless steel, it will have heat insulating properties and corrosion resistance, and if it includes beryllium copper or phosphor bronze, it will have a heat insulating effect. Furthermore, if the relay connector 350 includes phosphor bronze or brass, it will be non-magnetic. The second relay connector 350 may include a highly thermally conductive material.

[0141] The first relay connector first insertion portion 336 of the first relay connector 330 is inserted into the connector first insertion portion 21 of the connector 102. The first coaxial cable 290 is inserted into the first relay connector second insertion portion 332 of the first relay connector 330. The first tip piece convex portions 333-1 to 335-1 of the first relay connector 330 are respectively fitted into the side wall concave portion 53 of the connector 102, thereby electrically connecting the connector 102 (side wall concave portion 53) and the first relay connector 330 (first tip piece convex portions 333-1 to 335-1). Although not shown in FIG. 9 , the first coaxial cable 290 has a center conductor, an insulator disposed around the outer periphery of the center conductor, and an outer conductor disposed around the outer periphery of the insulator.

[0142] 9, as shown in Fig. 2B, the outer conductor of the first coaxial cable 290 is electrically connected to the main body 331 of the first relay connector 330. The first coaxial cable 290 may include a superconductor, or may include any material as long as it has electrical conductivity.

[0143] The first relay connector 330 may be disposed inside one end side of the cylindrical main body 331 that faces the connector 102 (the right end side of the cylindrical main body 331 in FIG. 9 ), and may have a relay connector insertion port (not shown in FIG. 9 ) that is electrically connected to the first center conductor of the first coaxial cable 290. The male pin 800 is inserted into the relay connector insertion port from the tip side of one end (the left end of the male pin 800 in FIG. 9 ) that faces the first relay connector 330 in the longitudinal direction of the male pin 800, which is the direction in which the connector 102 is penetrated, and the male pin 800 and the center conductor of the first coaxial cable 290 are electrically connected via the relay connector insertion port.

[0144] The second relay connector first insertion portion 356 of the second relay connector 350 is inserted into the connector first insertion portion 31 of the connector 102. The second coaxial cable 490 is inserted into the second relay connector second insertion portion 352 of the second relay connector 350. The second tip piece convex portions 353-1 to 355-1 of the second relay connector 350 are respectively fitted into the side wall recess 54 of the connector 102, thereby electrically connecting the connector 102 (side wall recess 54) and the second relay connector 350 (second tip piece convex portions 353-1 to 355-1). Although not shown in FIG. 9 , the second coaxial cable 490 has a center conductor, an insulator disposed around the outer periphery of the center conductor, and an outer conductor disposed around the outer periphery of the insulator.

[0145] 9, the outer conductor of the second coaxial cable 490 is electrically connected to the main body 351 of the second relay connector 350, as shown in Fig. 2B. The second coaxial cable 490 may include a superconductor, or may include any other material as long as it has electrical conductivity.

[0146] The second relay connector 350 may be disposed inside one end side of the cylindrical main body 351 that faces the connector 102 (the left end side of the cylindrical main body 351 in FIG. 9 ), and may have a relay connector insertion port (not shown in FIG. 9 ) that is electrically connected to the first center conductor of the second coaxial cable 490. The male pin 800 is inserted into the relay connector insertion port from the tip side of the other end (the right end of the male pin 800 in FIG. 9 ) that faces the one end of the male pin 800 and is on the second relay connector 350 side in the longitudinal direction of the male pin 800, which is the direction in which the connector 102 is penetrated, and the male pin 800 and the center conductor of the second coaxial cable 490 are electrically connected via the relay connector insertion port.

[0147] The contents described above regarding the seventh embodiment (Example 5 of the transmission line connection system) according to the present invention can be applied to the first to sixth embodiments according to the present invention described above and the eighth embodiment according to the present invention described below, unless there is any particular technical contradiction.

[0148] 8. Eighth Embodiment (Sixth Example of Transmission Line Connection System) A transmission line connection system according to an eighth embodiment of the present invention (sixth example of transmission line connection system) will be described with reference to FIG.

[0149] FIG. 10 is a diagram for explaining Example 6 of a transmission line connection system according to the eighth embodiment to which the present invention is applied, and more specifically, a diagram for explaining a transmission line connection system 7000 according to the eighth embodiment of the present invention.

[0150] 10 shows a state before the first relay connector 370 and the second relay connector 390 are electrically connected to the connector 102 and the male pin 800 disposed inside the cylindrical side wall portion 12 of the connector 102 in the transmission line connection system 7000. That is, this is the state before the first relay connector 370 is inserted into the first insertion portion 21 of the connector 102, and the state before the second relay connector 390 is inserted into the second insertion portion 31 of the connector 102. Note that in FIG. 10, the connector 102 is shown in a side cross-sectional view, and the first relay connector 370 and the second relay connector 390 are shown in a side view.

[0151] As described above, the connector 102 has the cylindrical side wall portion 12, the connector first insertion portion 21, and the connector second insertion portion 31, and further has side wall recesses 53 and 54 that are provided on the inner wall 12-1 of the cylindrical side wall portion 12 and are recessed outward from the inner wall 12-1 so as to surround the inner wall 12-1. The connector 102 penetrates from the connector first insertion portion 21 to the connector second insertion portion 31.

[0152] The material of the connector 102 may include at least one selected from the group consisting of stainless steel, beryllium copper, phosphor bronze, and brass. If the connector 102 includes stainless steel, it will provide thermal insulation and corrosion resistance, and if it includes beryllium copper or phosphor bronze, it will provide thermal insulation. Furthermore, if the connector 102 includes phosphor bronze or brass, it will be non-magnetic. The connector 102 may also be a superconductor. Furthermore, the connector 102 may include a superconducting material.

[0153] The connector first insertion portion 21 is formed at one end of the cylindrical side wall portion 12 (the left side of the cylindrical side wall portion 12 in Figure 10), and the connector second insertion portion 31 is formed at the other end of the cylindrical side wall portion 12 opposite to the one end of the cylindrical side wall portion 12 (the right side of the cylindrical side wall portion 12 in Figure 10).

[0154] The side wall recess 53 and the side wall recess 54 are formed in this order from one end side of the cylindrical side wall portion 12. That is, the side wall recess 53 is formed on one end side of the cylindrical side wall portion 12, and the side wall recess 54 is formed on the other end side of the cylindrical side wall portion 12.

[0155] The first relay connector 370 has a cylindrical main body 371, a plurality of tip pieces 373 to 375 arranged at one end of the cylindrical main body 371 (to the right of the main body 371 in FIG. 10 ) and extending outward from the cylindrical main body 371 on the opposite side from the cylindrical main body 371 side, and configured to form a first relay connector first insertion portion 376, and a first relay connector second insertion portion 372 formed at the other end of the cylindrical main body 371 (to the left of the main body 371 in FIG. 10 ) opposing the one end of the cylindrical main body 371 (to the right of the main body 371 in FIG. 10 ). Each of the plurality of tip pieces 373 to 375 may have spring properties. If each of the plurality of tip pieces 373 to 375 has spring properties, the plurality of tip pieces 373 to 375 will bend further inward (note that even if they do not have spring properties, they will bend further inward, but if they have spring properties, they will bend further), and the diameter of the tip side of the first relay connector 370 will be smaller, making it easier to insert into the first connector insertion portion 21 of the connector 102. After insertion into the first connector insertion portion 21, the plurality of tip pieces 373 to 375 will no longer bend inward (note that even if they do not have spring properties, they will no longer bend inward and will return to their original shape, but if they have spring properties, they will no longer bend and their returning force will be even greater (the speed of returning to their original shape will be even faster)), and within the connector 102, the size of the diameter of the tip side of the first relay connector 370 will return to its original shape, and the coupling force between the first relay connector 370 and the connector 102 will be increased.

[0156] The tip ends of the plurality of tip pieces 373 to 375 are formed with tip piece projections 373-1 to 375-1 that protrude outward.

[0157] The intermediate connector 370 and the male pin 800 may be made of at least one material selected from the group consisting of stainless steel, beryllium copper, phosphor bronze, and brass. When the intermediate connector 370 contains stainless steel, it provides heat insulation and corrosion resistance, while when it contains beryllium copper or phosphor bronze, it provides heat insulation. Furthermore, when the intermediate connector 370 contains phosphor bronze or brass, it becomes non-magnetic. The first intermediate connector 370 and the male pin 800 may contain a highly thermally conductive material.

[0158] The second relay connector 390 has a cylindrical main body 391, a plurality of tip pieces 393 to 395 arranged at one end of the cylindrical main body 391 (the left side of the cylindrical main body 391 in FIG. 10 ) and extending outward from the cylindrical main body 391 on the opposite side from the cylindrical main body 391 side, and configured to form a second relay connector first insertion portion 396, and a second relay connector second insertion portion 392 formed at the other end of the cylindrical main body 391 (the right side of the cylindrical main body 391 in FIG. 10 ) that faces the one end of the cylindrical main body 391 (the left side of the cylindrical main body 391 in FIG. 10 ). Each of the plurality of tip pieces 393 to 395 may have spring properties. If each of the plurality of tip pieces 393 to 395 has spring properties, the plurality of tip pieces 393 to 395 will bend further inward (note that even if they do not have spring properties, they will bend further inward, but if they have spring properties, they will bend further), and the diameter of the tip side of the second relay connector 390 will be smaller, making it easier to insert into the second connector insertion portion 31 of the connector 102. After insertion into the second connector insertion portion 31, the plurality of tip pieces 393 to 395 will no longer bend inward (note that even if they do not have spring properties, they will no longer bend inward and will return to their original shape, but if they have spring properties, they will no longer bend and their returning force will be even greater (the speed of returning to their original shape will be even faster)), and within the connector 102, the size of the diameter of the tip side of the second relay connector 390 will return to its original shape, and the coupling force between the second relay connector 390 and the connector 102 will be increased.

[0159] The tip ends of the plurality of tip pieces 393 to 395 are formed with tip piece projections 393-1 to 395-1 that protrude outward.

[0160] The material of the second relay connector 390 may include at least one selected from the group consisting of stainless steel, beryllium copper, phosphor bronze, and brass. If the relay connector 390 includes stainless steel, it will have heat insulating properties and corrosion resistance, and if it includes beryllium copper or phosphor bronze, it will have heat insulating properties. Furthermore, if the relay connector 390 includes phosphor bronze or brass, it will be non-magnetic. The second relay connector 390 may include a highly thermally conductive material.

[0161] The first relay connector first insertion portion 376 of the first relay connector 370 is inserted into the connector first insertion portion 21 of the connector 102. The first coaxial cable 290 is inserted into the first relay connector second insertion portion 372 of the first relay connector 350. The first tip piece convex portions 373-1 to 375-1 of the first relay connector 370 are respectively fitted into the side wall concave portion 53 of the connector 102, thereby electrically connecting the connector 102 (side wall concave portion 53) and the first relay connector 370 (first tip piece convex portions 373-1 to 375-1). Although not shown in FIG. 10 , the first coaxial cable 290 has a center conductor, an insulator disposed around the outer periphery of the center conductor, and an outer conductor disposed around the outer periphery of the insulator.

[0162] 10, as shown in Fig. 2B, the outer conductor of the first coaxial cable 290 is electrically connected to the main body 371 of the first relay connector 370. The first coaxial cable 290 may include a superconductor, or may include any material as long as it has electrical conductivity.

[0163] The first relay connector 370 may be disposed inside one end side of the cylindrical main body 371 that faces the connector 102 (the right end side of the cylindrical main body 371 in FIG. 10 ), and may have a relay connector insertion port (not shown in FIG. 10 ) that is electrically connected to the first center conductor of the first coaxial cable 290. The male pin 800 is inserted into the relay connector insertion port from the tip side of one end (the left end of the male pin 800 in FIG. 10 ) that faces the first relay connector 370 in the longitudinal direction of the male pin 800, which is the direction in which the connector 102 is penetrated, and the male pin 800 and the center conductor of the first coaxial cable 290 are electrically connected via the relay connector insertion port.

[0164] The second relay connector first insertion portion 396 of the second relay connector 390 is inserted into the connector first insertion portion 31 of the connector 102. The second coaxial cable 490 is inserted into the second relay connector second insertion portion 392 of the second relay connector 390. The second tip piece convex portions 393-1 to 395-1 of the second relay connector 390 are respectively fitted into the side wall recess 54 of the connector 102, thereby electrically connecting the connector 102 (side wall recess 54) and the second relay connector 390 (second tip piece convex portions 393-1 to 395-1). Although not shown in FIG. 10 , the second coaxial cable 490 has a center conductor, an insulator disposed around the outer periphery of the center conductor, and an outer conductor disposed around the outer periphery of the insulator.

[0165] 10, as shown in Fig. 2B, the outer conductor of the second coaxial cable 490 is electrically connected to the main body 391 of the second relay connector 390. The second coaxial cable 490 may include a superconductor, or may include any material as long as it has electrical conductivity.

[0166] The second relay connector 390 may be disposed inside one end side of the cylindrical main body 391 that faces the connector 102 (the left end side of the cylindrical main body 391 in FIG. 10 ), and may have a relay connector insertion port (not shown in FIG. 10 ) that is electrically connected to the first center conductor of the second coaxial cable 490. The male pin 800 is inserted into the relay connector insertion port from the tip side of the other end (the right end of the male pin 800 in FIG. 10 ) that faces the one end of the male pin 800 and is on the second relay connector 390 side in the longitudinal direction of the male pin 800, which is the direction in which the connector 102 is penetrated, and the male pin 800 and the center conductor of the second coaxial cable 490 are electrically connected via the relay connector insertion port.

[0167] 10 , in a partial region in the longitudinal direction of the male pin 800, which is the penetration direction of the connector 800, an insulating material 801 is disposed on the outer periphery of the male pin 800, and a conductor 802 is disposed on the outer periphery of the insulating material 801. The conductor 802 is connected to the inner wall 12-1 of the cylindrical side wall portion 12 of the connector 102. Note that the conductor 802 may be joined to the inner wall 12-1 of the cylindrical side wall portion 12 of the connector 102 using, for example, an adhesive or the like.

[0168] The contents described above regarding the eighth embodiment (example 6 of the transmission line connection system) according to the present invention can be applied to the first to seventh embodiments according to the present invention, unless there is any particular technical contradiction.

[0169] The present invention is not limited to the above-described embodiment, and various modifications are possible without departing from the spirit of the present invention.

[0170] The present invention can be configured as follows: [1] A connector having a cylindrical side wall portion, a first insertion portion formed at one end of the cylindrical side wall portion, a second insertion portion formed at the other end of the cylindrical side wall portion opposite the one end of the cylindrical side wall portion, and at least one side wall protrusion provided on an inner wall of the cylindrical side wall portion, protruding inward from the inner wall and forming a periphery of the inner wall, the connector penetrating from the first insertion portion to the second insertion portion. [2] The connector according to [1], having at least one side wall recess provided on the inner wall of the cylindrical side wall portion, recessed outward from the inner wall and forming a periphery of the inner wall, the at least one side wall protrusion and the at least one side wall recess being arranged in order from the first insertion portion side. [3] The connector according to [2], wherein a length of the at least one sidewall protrusion in a direction penetrating from the first insertion portion to the second insertion portion is greater than a length of the at least one sidewall recess in a direction penetrating from the first insertion portion to the second insertion portion. [4] The connector according to any one of [1] to [3], which is a superconductor.

[0171] [5] A connector assembly having a plurality of connectors, each of the plurality of connectors having a cylindrical side wall portion, a first insertion portion formed at one end of the cylindrical side wall portion, a second insertion portion formed at the other end of the cylindrical side wall portion opposite the one end of the cylindrical side wall portion, and at least one side wall protrusion provided on the inner wall of the cylindrical side wall portion, protruding inward from the inner wall and formed so as to surround the inner wall, penetrating from the first insertion portion to the second insertion portion, the plurality of connectors being formed in a honeycomb shape in a plan view from the first insertion portion side. [6] The connector assembly described in [5], wherein each of the plurality of connectors has at least one side wall recess provided on the inner wall of the cylindrical side wall portion, recessed outward from the inner wall and formed so as to surround the inner wall, the at least one side wall protrusion and the at least one side wall recess being arranged in order from the first insertion portion side. [7] The connector assembly according to [6], wherein the length of the at least one side wall protrusion in the direction penetrating from the first insertion portion to the second insertion portion of each of the plurality of connectors is greater than the length of the at least one side wall recess in the direction penetrating from the first insertion portion to the second insertion portion. [8] The connector assembly according to any one of [5] to [7], wherein each of the plurality of connectors is a superconductor.

[0172] [9] A connector comprising a connector, a first coaxial cable, a second coaxial cable, and a relay connector, the connector having a cylindrical side wall portion, a first insertion portion formed at one end of the cylindrical side wall portion, a second insertion portion formed at the other end of the cylindrical side wall portion opposite the one end of the cylindrical side wall portion, a side wall convex portion provided on the inner wall of the cylindrical side wall portion, protruding inward from the inner wall and formed to surround the inner wall, and a side wall concave portion provided on the inner wall of the cylindrical side wall portion, recessed outward from the inner wall and formed to surround the inner wall, the connector penetrating from the first insertion portion to the second insertion portion, the side wall convex portion and the side wall concave portion being arranged in this order from the first insertion portion side, the first coaxial cable having a first central conductor, a first insulator arranged on the outer periphery of the first central conductor, and a first outer conductor arranged on the outer periphery of the first insulator, the second coaxial cable has a second central conductor, a second insulator disposed around the second central conductor, and a second outer conductor disposed around the second insulator; the relay connector has a cylindrical main body, a plurality of tip pieces disposed at one end of the cylindrical main body and configured to form a relay connector first insertion portion on the side opposite to the cylindrical main body side, and a relay connector second insertion portion formed at the other end of the cylindrical main body facing the one end of the cylindrical main body, a tip piece convex portion protruding outward is formed at the tip of each of the plurality of tip pieces; the first coaxial cable is inserted into the first insertion portion of the connector; the relay connector first insertion portion of the relay connector is inserted into the second insertion portion of the connector; the second coaxial cable is inserted into the relay connector second insertion portion of the relay connector; the side wall convex portion of the connector and the first outer conductor of the first coaxial cable are electrically connected; a transmission line connection system according to claim 1, wherein the second outer conductor of the second coaxial cable is electrically connected to the main body of the relay connector, and the first outer conductor of the first coaxial cable is electrically connected to the second outer conductor of the second coaxial cable, and the second outer conductor of the relay connector is electrically connected to the main body of the relay connector, and the second outer conductor of the first coaxial cable is electrically connected to the second outer conductor of the second coaxial cable.

[11] The transmission line connection system according to [9] or

[10] , wherein the relay connector has a relay connector insertion port arranged inside one end side of the cylindrical main body, the first center conductor of the first coaxial cable is inserted into the relay connector insertion port, the relay connector insertion port and the second center conductor of the second coaxial cable are electrically connected, and the first center conductor of the first coaxial cable and the second center conductor of the second coaxial cable are electrically connected via the relay connector insertion port.

[12] The transmission line connection system according to [9] or

[10] , wherein the relay connector has a relay connector insertion port arranged inside one end side of the cylindrical main body, a pin is provided at a tip of the first center conductor of the first coaxial cable, the pin is inserted into the relay connector insertion port, and the relay connector insertion port and the second center conductor of the second coaxial cable are electrically connected, and the first center conductor of the first coaxial cable and the second center conductor of the second coaxial cable are electrically connected via the relay connector insertion port and the pin.

[0173]

[13] A connector assembly comprising a connector assembly, a plurality of first coaxial cables, a plurality of second coaxial cables, and a plurality of relay connectors, each connector of the connector assembly having a cylindrical side wall portion, a first insertion portion formed at one end of the cylindrical side wall portion, a second insertion portion formed at the other end of the cylindrical side wall portion opposite to the one end of the cylindrical side wall portion, a side wall convex portion provided on the inner wall of the cylindrical side wall portion, protruding inward from the inner wall and formed to surround the inner wall, and a side wall concave portion provided on the inner wall of the cylindrical side wall portion, recessed outward from the inner wall and formed to surround the inner wall, the connector extends from the first insertion portion to the second insertion portion, the side wall convex portion and the side wall concave portion are arranged in order from the first insertion portion side, and each first coaxial cable of the plurality of first coaxial cables has each of the plurality of second coaxial cables has a first central conductor, a first insulator disposed around the outer periphery of the first central conductor, and a first outer conductor disposed around the outer periphery of the first insulator; each of the plurality of second coaxial cables has a second central conductor, a second insulator disposed around the outer periphery of the second central conductor, and a second outer conductor disposed around the outer periphery of the second insulator; each of the plurality of relay connectors has a cylindrical main body, a plurality of tip pieces disposed at one end of the cylindrical main body and having a relay connector first insertion portion formed on the side opposite to the cylindrical main body side, and a relay connector second insertion portion configured to form the other end of the cylindrical main body opposing the one end of the cylindrical main body; a tip piece protrusion protruding outward is formed at the tip end of each of the plurality of tip pieces; each of the first coaxial cables is inserted into the first insertion portion of its respective connector; a transmission line connection system in which the first relay connector insertion portion of each of the relay connectors is inserted into the second insertion portion of the respective connector, the second coaxial cables are inserted into the second relay connector insertion portion of each of the relay connectors, the side wall convex portion of each of the connectors and the first outer conductor of each of the first coaxial cables are electrically connected, and the tip piece convex portion of each of the relay connectors is fitted into the side wall concave portion of each of the connectors, thereby electrically connecting the side wall concave portion of each of the connectors and the tip piece convex portion of each of the relay connectors.

[14] The transmission line connection system according to

[13] , wherein the second outer conductor of each of the second coaxial cables is electrically connected to the main body of each of the relay connectors, and the first outer conductor of each of the first coaxial cables is electrically connected to the second outer conductor of each of the second coaxial cables.

[15] The transmission line connection system according to

[13] or

[14] , wherein each of the relay connectors has a relay connector insertion port arranged inside one end side of the cylindrical main body, and the first central conductor of each of the first coaxial cables is inserted into the relay connector insertion port, and the relay connector insertion port is electrically connected to the second central conductor of each of the second coaxial cables, and the first central conductor of each of the first coaxial cables is electrically connected to the second central conductor of each of the second coaxial cables via the relay connector insertion port.

[16] The transmission line connection system according to

[13] or

[14] , wherein each of the relay connectors has a relay connector insertion port arranged inside one end side of the cylindrical main body, and a pin is provided at a tip of the first center conductor of each of the first coaxial cables, and the pin is inserted into the relay connector insertion port to electrically connect the relay connector insertion port and the second center conductor of each of the second coaxial cables, and the first center conductor of each of the first coaxial cables and the second center conductor of each of the second coaxial cables are electrically connected via the relay connector insertion port and the pin.

[0174]

[17] A connector, a coaxial cable, and a female pin, the connector comprising: a cylindrical side wall portion; a first connector insertion portion formed at one end of the cylindrical side wall portion; a second connector insertion portion formed at the other end of the cylindrical side wall portion opposite to the one end of the cylindrical side wall portion; and a side wall recess provided on the inner wall of the cylindrical side wall portion, recessed outward from the inner wall and formed so as to surround the inner wall, the connector passing from the first connector insertion portion to the second connector insertion portion; the coaxial cable having: a center conductor, an insulator disposed on the outer periphery of the center conductor, and an outer conductor disposed on the outer periphery of the insulator; and the female pin having: a first female pin insertion opening formed at one end of the female pin in the longitudinal direction, which is the direction in which the connector passes; and a second female pin insertion opening formed at the other end of the female pin in the longitudinal direction opposite to the one end of the female pin in the longitudinal direction, a transmission line connection system according to

[17] , wherein a tip end of the outer conductor is formed with a plurality of outer conductor split end pieces split in the longitudinal direction of the coaxial cable, each of the plurality of outer conductor split end pieces having an outer conductor split end protrusion protruding outward, the coaxial cable is inserted into the connector first insertion portion from the tip end side of the coaxial cable, the female pin is disposed inside the cylindrical side wall portion of the connector, the outer conductor split end protrusions are fitted into the side wall recesses of the connector to electrically connect the outer conductor and the connector, and the center conductor is inserted into the female pin first insertion opening from the tip side of the center conductor, and the center conductor on the tip side is fitted into the female pin first insertion opening to electrically connect the center conductor and the female pin.

[19] The transmission line connection system according to

[17] or

[18] , wherein a tip portion is provided at the tip of the center conductor, and the diameter of the tip portion gradually decreases toward the most distal end of the tip portion, which is on the opposite side to the center conductor side.

[20] The transmission line connection system according to

[17] or

[18] , wherein the diameter of the tip side of the center conductor gradually decreases toward the most distal end of the center conductor.

[0175]

[21] A connector, a coaxial cable, a relay connector, and a male pin, the connector comprising: a cylindrical side wall portion; a first insertion portion formed at one end of the cylindrical side wall portion; a second insertion portion formed at the other end of the cylindrical side wall portion opposite the one end of the cylindrical side wall portion; and a side wall recess provided on the inner wall of the cylindrical side wall portion, recessed outward from the inner wall and formed so as to surround the inner wall, the coaxial cable passing through from the first insertion portion to the second insertion portion; the coaxial cable having: a central conductor, an insulator disposed on the outer periphery of the central conductor, and an outer conductor disposed on the outer periphery of the insulator; and the relay connector comprising: a cylindrical main body portion; and a plurality of relay connector tip pieces disposed at one end of the cylindrical main body portion, extending outward from the cylindrical main body portion on the opposite side to the cylindrical main body portion, and configured to form a relay connector first insertion portion. a relay connector second insertion portion formed at one end of the cylindrical main body and the other end opposite the cylindrical main body, wherein a relay connector tip piece convex portion protruding outward is formed at a tip end of each of the plurality of tip pieces, the male pin extends in a direction in which the connector penetrates, the male pin is disposed inside the cylindrical side wall of the connector, and the relay connector tip piece convex portion is fitted into the side wall recess of the connector to electrically connect the relay connector and the connector, the coaxial cable is inserted into the relay connector second insertion portion from the tip side of the coaxial cable, and the center conductor and the male pin are electrically connected.

[22] The transmission line connection system according to

[21] , wherein an insulating material is disposed on an outer periphery of the male pin in at least a partial region in a longitudinal direction of the male pin, which is the direction in which the connector penetrates, and a conductor is disposed on an outer periphery of the insulating material, and the conductor is connected to an inner wall of the cylindrical side wall of the connector.

[23] The transmission line connection system according to

[21] or

[22] , wherein the relay connector has a relay connector insertion port arranged inside the relay connector on one end side of the tubular main body, the male pin is inserted into the relay connector insertion port from the tip side of one end of the male pin in the longitudinal direction, which is the penetration direction of the connector, the relay connector insertion port and the central conductor of the coaxial cable are electrically connected, and the male pin and the central conductor of the coaxial cable are electrically connected via the relay connector insertion port.

[0176] DESCRIPTION OF SYMBOLS 1, 11, 12... Cylindrical side wall portion 2, 20, 21... Connector first insertion portion (first insertion portion) 3, 30, 31... Connector second insertion portion (second insertion portion) 4... Side wall convex portion 5, 51, 52, 53, 54... Side wall concave portion 100, 101, 102... Connector 200, 270, 280, 290... First coaxial cable 201, 271, 281... First central conductor 202, 272, 282... First outer conductor 203... Pin 204... Insulator 271-1... Tip portion of first central conductor 272-1, 272-2, 272-3, 282-1, 282-2, 282-3... Split tip piece of first outer conductor 273-1, 273-2, 273-3, 283-1, 283-2, 283-3... Split end piece convex portion of first outer conductor, 300... Relay connector, 301... Cylindrical main body portion of relay connector, 302... Second insertion portion of relay connector, 303, 304,305... Tip piece, 303-1, 304-1, 305-1... Tip piece convex portion, 306... First insertion portion of relay connector, 307... Relay connector insertion port, 330, 370... First relay connector, 331, 371... Cylindrical main body portion of first relay connector, 332, 372... Second insertion portion of first relay connector, 333, 334, 335, 373, 374, 375... Tip piece of first relay connector, 333-1, 334-1, 335-1, 373-1, 374-1, 375-1... Tip piece convex portion of first relay connector, 336, 376... First insertion portion of first relay connector, 350, 390... Second relay connector, 351, 391... Cylindrical main body portion of second relay connector, 352, 392... Second insertion portion of second relay connector; 353, 354, 355, 393, 394, 395... Tip piece of second relay connector; 353-1, 354-1, 355-1, 393-1, 394-1, 395-1... Tip piece convex portion of first relay connector; 356, 396... First insertion portion of second relay connector; 400, 470, 480, 490... Second coaxial cable; 401, 471, 481... Second central conductor; 404... Insulator; 471-1... Tip portion of second central conductor; 472, 482... Second outer conductor; 472-1, 472-2, 472-3, 482-1, 482-2, 482-3... Split tip piece of second outer conductor; 473-1, 473-2, 473-3, 483-1, 483-2, 483-3... split tip piece convex portion of second outer conductor, 500... first coaxial cable, 501... center conductor, 502... outer conductor, 504... insulator, 600... connector assembly, 700... female pin, 701... first female pin insertion port, 702... second female pin insertion port, 800... male pin, 801... insulator, 802... conductor, 1000, 2000, 3000, 4000, 5000, 6000, 7000... transmission line connection system.

Claims

1. A transmission line connection system comprising a connector, a coaxial cable, and a female pin, wherein the connector has a cylindrical side wall portion, a first connector insertion portion formed at one end of the cylindrical side wall portion, a second connector insertion portion formed at the other end of the cylindrical side wall portion opposite to the one end of the cylindrical side wall portion, and a side wall recess provided on the inner wall of the cylindrical side wall portion and formed to be recessed from the inner wall in an outer direction and to go around the inner wall, and penetrating from the first connector insertion portion to the second connector insertion portion; the coaxial cable has a center conductor, an insulator disposed on the outer periphery of the center conductor, and an outer conductor disposed on the outer periphery of the insulator; the female pin has a first female pin insertion port formed at one end in the longitudinal direction of the female pin which is the penetration direction of the connector, and a second female pin insertion port formed at the other end in the length direction of the female pin opposite to the one end in the longitudinal direction of the female pin; a plurality of outer conductor cracked tip pieces cracked in the longitudinal direction of the coaxial cable are formed on the tip side of the outer conductor, and an outer conductor cracked tip piece convex portion protruding outward is formed on each of the plurality of outer conductor cracked tip pieces; the coaxial cable is inserted into the first connector insertion portion from the tip side of the coaxial cable, the female pin is disposed inside the cylindrical side wall portion of the connector, the outer conductor cracked tip piece convex portion is fitted into the side wall recess of the connector, and the outer conductor and the connector are electrically connected; the center conductor is inserted into the first female pin insertion port from the tip side of the center conductor, and the tip side center conductor is fitted into the first female pin insertion port, and the center conductor and the female pin are electrically connected.

2. The transmission line connection system according to claim 1, wherein a plurality of first female pin cracked tip pieces cracked in the longitudinal direction of the female pin are formed on one end side in the longitudinal direction of the female pin.

3. The transmission line connection system according to claim 1 or 2, wherein a tip portion is provided at the tip of the center conductor, and the diameter of the tip portion gradually decreases toward the foremost end direction of the tip portion on the side opposite to the center conductor side.

4. The transmission line connection system according to claim 1 or 2, wherein the diameter of the tip side of the center conductor gradually decreases toward the foremost end direction of the center conductor.

Images