JP7367592B2 - cable connection device - Google Patents

cable connection device Download PDF

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JP7367592B2
JP7367592B2 JP2020063259A JP2020063259A JP7367592B2 JP 7367592 B2 JP7367592 B2 JP 7367592B2 JP 2020063259 A JP2020063259 A JP 2020063259A JP 2020063259 A JP2020063259 A JP 2020063259A JP 7367592 B2 JP7367592 B2 JP 7367592B2
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terminal
cable
connection
center conductor
connection device
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JP2021164254A (en
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裕介 川瀬
幸則 相島
健一 大田和
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Proterial Ltd
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Proterial Ltd
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/502—Bases; Cases composed of different pieces
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/639—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R31/00—Coupling parts supported only by co-operation with counterpart
    • H01R31/06—Intermediate parts for linking two coupling parts, e.g. adapter
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00—Connectors or connections adapted for particular applications
    • H01R2201/26—Connectors or connections adapted for particular applications for vehicles

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  • Cable Accessories (AREA)
  • Processing Of Terminals (AREA)

Description

本発明は、鉄道車両に用いられて好適なケーブル接続装置に関する。 The present invention relates to a cable connection device suitable for use in railway vehicles.

ビルの各フロアを貫いて敷設され各フロアに電力を供給するケーブルであって、各フロアに分岐する分岐接続部を有する幹線ケーブルが知られている（例えば、特許文献１参照。）。 2. Description of the Related Art A trunk cable is known that is a cable that is laid through each floor of a building to supply power to each floor, and that has a branch connection section that branches to each floor (see, for example, Patent Document 1).

特開平５－２４４７１５号公報Japanese Patent Application Publication No. 5-244715

その一方で、鉄道車両においても集電装置を用いて集電した電力を車両の各所へ供給するケーブルが用いられている。鉄道車両用のケーブルを鉄道車両に敷設する際には、ケーブル同士を接続する中間接続部や、ケーブルとケーブル以外の機器とを接続する終端接続部が必要に応じて用いられている。 On the other hand, cables are also used in railway vehicles that collect power using current collectors and supply it to various parts of the vehicle. When laying a cable for a railway vehicle on a railway vehicle, an intermediate connection part that connects the cables to each other and a terminal connection part that connects the cable to a device other than the cable are used as necessary.

なお、以降で中間接続部および終端接続部を区別しない場合には単に接続部と表記する。また、接続部はターミネーション（ｔｅｒｍｉｎａｔｉｏｎ）またはジョイント（ｊｏｉｎｔ）とも表記される。 Note that in the following, when the intermediate connection part and the terminal connection part are not distinguished, they will simply be referred to as connection parts. Further, the connection portion is also expressed as a termination or a joint.

ビルなどの設備と比較して、鉄道車両は車両走行による振動および衝撃が発生するという違いがある。特許文献１に開示されている分岐接続部では、車両走行による振動および衝撃に対して接続部の機械的な強度が不足するおそれがあった。 Compared to facilities such as buildings, railway vehicles are different in that they generate vibrations and shocks due to the running of the vehicle. In the branch connection portion disclosed in Patent Document 1, there is a risk that the mechanical strength of the connection portion may be insufficient against vibrations and impacts caused by vehicle running.

本発明は、上記の課題を解決するためになされたものであって、鉄道車両に用いることが容易な機械的強度を確保しやすいケーブル接続装置を提供することを目的とする。 The present invention was made in order to solve the above-mentioned problems, and an object of the present invention is to provide a cable connecting device that can easily be used in a railway vehicle and that can easily ensure mechanical strength.

上記目的を達成するために、本発明は、以下の手段を提供する。
本発明のケーブル接続装置は、第１接続部と第２接続部とに導電可能に接続されるケーブル接続装置であって、導電性を有する中心導体と、絶縁性を有する材料から形成され、前記中心導体の周囲を覆う構造体と、前記構造体の周囲を覆う筺体と、前記筺体および前記構造体に凹状に形成された部分であって、凹状の内面に前記中心導体が前記第１接続部と導電可能に露出する第１端子部と、前記筺体から突出して形成された前記構造体の部分であって、突出部分の端部に前記中心導体が前記第２接続部と導電可能に露出し、当該中心導体の露出面に前記第２接続部の固定に用いられる１つの第２固定部が設けられている第２端子部と、を有する。 In order to achieve the above object, the present invention provides the following means.
The cable connection device of the present invention is a cable connection device that is electrically conductively connected to a first connection portion and a second connection portion, and is formed from a conductive center conductor and an insulating material; a structure that covers the periphery of the center conductor; a casing that covers the periphery of the structure; and a concave portion formed in the casing and the structure, wherein the center conductor is connected to the first connection portion on the inner surface of the concave shape. a first terminal portion exposed in a conductive manner with the second connecting portion; and a portion of the structure formed to protrude from the housing, the center conductor being exposed at an end of the protruding portion in a conductive manner with the second connection portion. , a second terminal portion in which one second fixing portion used for fixing the second connection portion is provided on the exposed surface of the center conductor.

本発明のケーブル接続装置によれば、第２端子部の中心導体に第２接続部が固定されるため、構造体に第２接続部を固定する場合と比較して機械的強度を確保しやすくなり、鉄道車両に用いることが容易になるという効果を奏する。 According to the cable connection device of the present invention, since the second connection part is fixed to the center conductor of the second terminal part, it is easier to ensure mechanical strength compared to the case where the second connection part is fixed to the structure. This has the effect that it can be easily used in railway vehicles.

本発明の一実施形態に係るケーブル接続装置がケーブルに接続された状態を示す断面図である。FIG. 1 is a cross-sectional view showing a state in which a cable connection device according to an embodiment of the present invention is connected to a cable. 図１のケーブル接続装置の構成を説明する側面図である。FIG. 2 is a side view illustrating the configuration of the cable connection device in FIG. 1. FIG. ケーブル接続装置の構成を説明するＶ－Ｖ’断面視図である。FIG. 2 is a cross-sectional view taken along line V-V' to explain the configuration of the cable connection device. ケーブル接続装置の構成を説明するＷ－Ｗ’断面視図である。FIG. 2 is a sectional view taken along the line WW′ for explaining the configuration of the cable connection device. 遮蔽部の構成を説明する断面視図である。FIG. 3 is a cross-sectional view illustrating the configuration of a shielding section. ３つの端子を有するケーブル接続装置の他の構成を説明する図である。FIG. 3 is a diagram illustrating another configuration of a cable connection device having three terminals. ガイシが設けられたケーブル接続装置の構成を説明する図である。FIG. 2 is a diagram illustrating the configuration of a cable connection device provided with an insulator. ２つの端子を有するケーブル接続部の構成を説明する図である。It is a figure explaining the structure of the cable connection part which has two terminals. ２つの端子を有するケーブル接続部の他の構成を説明する図である。It is a figure explaining the other structure of the cable connection part which has two terminals.

この発明の一実施形態に係るケーブル接続装置について、図１から図９を参照しながら説明する。本実施形態ではケーブル接続装置１が、鉄道車両に用いられる例に適用して説明する。具体的には、パンタグラフなどの集電装置を用いて集電した電力を車両の各所へ供給するケーブル（例えば、超高圧ケーブル）の接続に用いられる例に適用して説明する。このケーブルは、鉄道車両の屋根上や、床下や、車両と車両との間の側面などに敷設される。 A cable connection device according to an embodiment of the present invention will be described with reference to FIGS. 1 to 9. In this embodiment, the cable connection device 1 will be described as applied to an example used in a railway vehicle. Specifically, the present invention will be described with reference to an example in which the present invention is used to connect a cable (for example, an ultra-high voltage cable) that supplies power collected using a current collector such as a pantograph to various parts of a vehicle. This cable is laid on the roof of a railway vehicle, under the floor, or on the side between two vehicles.

本実施形態のケーブル接続装置１が適用される鉄道車両は、交流電源を用いる鉄道車両である。より具体的には、単相交流電源を用いる鉄道車両である。なお、三相交流電源を用いる鉄道車両であってもよい。 A railway vehicle to which the cable connection device 1 of this embodiment is applied is a railway vehicle that uses an AC power source. More specifically, it is a railway vehicle that uses a single-phase AC power source. Note that a railway vehicle using a three-phase AC power source may be used.

交流電源の周波数は５０Ｈｚや６０Ｈｚの商用周波数であってもよいし、商用周波数以外の周波数であってもよい。交流電源の電圧は２０ｋＶや２５ｋＶなどを例示することができるが、これらの電圧以外の電圧であってもよい。 The frequency of the AC power source may be a commercial frequency of 50 Hz or 60 Hz, or a frequency other than the commercial frequency. Examples of the voltage of the AC power supply include 20 kV and 25 kV, but voltages other than these voltages may be used.

ケーブル接続装置１には、図１に示すように、第１ケーブル５０Ａ、第２ケーブル５０Ｂおよび第３ケーブル６０が着脱可能に接続される。第１ケーブル５０Ａ、第２ケーブル５０Ｂ、および、第３ケーブル６０は、鉄道車両に供給される交流電源の電圧（例えば２０ｋＶや２５ｋＶ）に対応した定格電圧を有するものである。 As shown in FIG. 1, a first cable 50A, a second cable 50B, and a third cable 60 are detachably connected to the cable connection device 1. The first cable 50A, the second cable 50B, and the third cable 60 have a rated voltage corresponding to the voltage (for example, 20 kV or 25 kV) of the AC power supply supplied to the railway vehicle.

なお、第１ケーブル５０Ａ、第２ケーブル５０Ｂおよび第３ケーブル６０における導体や、絶縁体や、シールドや、シースなどを含む構成は公知の構成を用いることができる。また、導体や、絶縁体や、シールドや、シースを形成する材料も公知の材料を用いることができる。 In addition, a known structure can be used for the structure including a conductor, an insulator, a shield, a sheath, etc. in the first cable 50A, the second cable 50B, and the third cable 60. Also, known materials can be used for the conductor, insulator, shield, and sheath.

第１ケーブル５０Ａおよび第２ケーブル５０Ｂには、ケーブル接続装置１との接続に用いられる接続端末（第１接続部）５１Ａ，５１Ｂが設けられている。接続端末５１Ａ，５１Ｂは、後述する第１端子部２１Ａ，２１Ｂに挿入される凸状に形成された端末であり、公知の規格に対応する形状を有している。公知の規格としては、欧州規格（Ｅｕｒｏｐｅａｎ Ｎｏｒｍ）のＥＮ５０１８１などを例示することができる。 The first cable 50A and the second cable 50B are provided with connection terminals (first connection portions) 51A and 51B used for connection with the cable connection device 1. The connection terminals 51A and 51B are terminals formed in a convex shape to be inserted into first terminal portions 21A and 21B, which will be described later, and have shapes that comply with known standards. Examples of known standards include the European Norm EN50181.

本実施形態では、第１ケーブル５０Ａおよび第２ケーブル５０Ｂの端部に設けられる円筒形状および円錐台形状を足し合わせた形状に形成された端末部５２Ａ，５２Ｂと、第１ケーブル５０Ａおよび第２ケーブル５０Ｂの導体と導電可能であり端末部５２Ａ，５２Ｂの先端から突出した先端部５３Ａ，５３Ｂとが、接続端末５１Ａ，５１Ｂに設けられている例に適用して説明する。 In this embodiment, terminal parts 52A and 52B formed in a shape that is a combination of a cylindrical shape and a truncated conical shape provided at the ends of the first cable 50A and the second cable 50B, and the first cable 50A and the second cable The following description applies to an example in which the connection terminals 51A, 51B are provided with tip portions 53A, 53B which are capable of conducting electricity with the conductor 50B and protrude from the tips of the terminal portions 52A, 52B.

第３ケーブル６０には、ケーブル接続装置１との接続に用いられる終端接続部（第２接続部）６１が設けられている。終端接続部６１は、後述する第２端子部２２が挿入される凹状に形成された端末であり、公知の規格に対応する形状を有している。公知の規格としては、欧州規格（Ｅｕｒｏｐｅａｎ Ｎｏｒｍ）のＥＮ５０１８１などを例示することができる。 The third cable 60 is provided with a terminal connection portion (second connection portion) 61 used for connection with the cable connection device 1 . The terminal connection part 61 is a terminal formed in a concave shape into which a second terminal part 22, which will be described later, is inserted, and has a shape corresponding to a known standard. Examples of known standards include the European Norm EN50181.

本実施形態では、第３ケーブル６０と直交して配置された筒状部材であって、第２端子部２２と対応する円錐状の内周面を有る接続凹部６３が設けられた終端部６２と、第３ケーブル６０の導体と導電可能であり接続凹部６３の端面に露出する接続端子６４と、ケーブル接続装置１への固定に用いられる第２固定部３１に対応する第２ボルト６５とが、終端接続部６１に設けられている例に適用して説明する。 In this embodiment, the terminal end portion 62 is a cylindrical member disposed orthogonally to the third cable 60 and is provided with a connection recess 63 having a conical inner peripheral surface corresponding to the second terminal portion 22. , a connection terminal 64 that is conductive with the conductor of the third cable 60 and exposed on the end surface of the connection recess 63, and a second bolt 65 corresponding to the second fixing part 31 used for fixing to the cable connection device 1. The following description applies to an example provided in the terminal connection section 61.

ケーブル接続装置１には、図２から図４に示すように、筺体１０と、構造体２０と、中心導体３０と、が設けられている。
筺体１０は、ケーブル接続装置１の外形を構成する部材である。筺体１０の内部には構造体２０および中心導体３０が収納されている。筺体１０を形成する材料としては、アルミニウム合金を例示することができる。 As shown in FIGS. 2 to 4, the cable connection device 1 is provided with a housing 10, a structure 20, and a center conductor 30.
The housing 10 is a member that constitutes the outer shape of the cable connection device 1. A structure 20 and a center conductor 30 are housed inside the housing 10. An example of the material for forming the housing 10 is aluminum alloy.

筺体１０は、内部に構造体２０が配置される概略筒状の形状を有し、筒状の両端には第１ケーブル５０Ａおよび第２ケーブル５０Ｂが着脱される第１端子部２１Ａ，２１Ｂを構成する開口が設けられている。 The housing 10 has a generally cylindrical shape in which the structure 20 is disposed, and first terminal portions 21A and 21B are formed at both ends of the cylindrical shape to which a first cable 50A and a second cable 50B are attached and detached. An opening is provided.

筒状の筺体１０における側面には、後述する第２端子部２２が筺体１０の内部から外部に向かって突出する開口部１１が形成されている。開口部１１における筺体１０の内側から外側に向かって広がる段差には、遮蔽部１７の固定に用いられる遮蔽ねじ孔１２が設けられている。 An opening 11 is formed in the side surface of the cylindrical casing 10, through which a second terminal portion 22, which will be described later, protrudes from the inside of the casing 10 to the outside. A shielding screw hole 12 used for fixing the shielding part 17 is provided in a step in the opening 11 that widens from the inside to the outside of the housing 10 .

遮蔽部１７は、開口部１１における筺体１０と第２端子部２２との隙間を塞ぐ部材である。本実施形態では、遮蔽部１７が、第２端子部２２が挿通される貫通孔を有するリング板状に形成されている例に適用して説明する。遮蔽部１７には、図５に示すように、筺体１０との固定に用いられる遮蔽鍔部１８が設けられている。 The shielding part 17 is a member that closes the gap between the housing 10 and the second terminal part 22 in the opening part 11. In the present embodiment, an example in which the shielding part 17 is formed in a ring plate shape having a through hole through which the second terminal part 22 is inserted will be described. As shown in FIG. 5, the shielding part 17 is provided with a shielding collar part 18 used for fixing to the housing 10.

筺体１０には、鉄道車両への固定に用いられる固定鍔部１３が設けられている。本実施形態では筺体１０における四隅のそれぞれに固定鍔部１３が設けられている例に適用して説明する。固定鍔部１３には、鉄道車両への固定の際に用いられる貫通孔が設けられている。 The housing 10 is provided with a fixing collar 13 used for fixing to a railway vehicle. In this embodiment, an example will be described in which a fixed collar portion 13 is provided at each of the four corners of the housing 10. The fixed collar portion 13 is provided with a through hole used for fixing to a railway vehicle.

筺体１０における第１端子部２１Ａ，２１Ｂを構成する開口が設けられた端面であって、当該開口の周囲には、接続端末５１Ａ，５１Ｂの固定に用いられるボルト孔である第１固定部１５が複数設けられている。 The end face of the housing 10 is provided with an opening constituting the first terminal portions 21A, 21B, and around the opening is a first fixing portion 15, which is a bolt hole used for fixing the connection terminals 51A, 51B. There are multiple locations.

本実施形態では、第１端子部２１Ａ，２１Ｂを中心とした円周上に、等間隔に６つの第１固定部１５が設けられている例に適用して説明する。なお、第１固定部１５が設けられる数は６つよりも多くてもよいし、少なくてもよい。 In this embodiment, an example will be described in which six first fixing parts 15 are provided at equal intervals on a circumference centered on the first terminal parts 21A and 21B. Note that the number of first fixing parts 15 provided may be greater than or less than six.

構造体２０は筺体１０と中心導体３０の間に配置される部材であり、筺体１０と中心導体３０との間を絶縁する部材である。構造体２０を形成する材料としては、絶縁性のエポキシ樹脂を例示することができる。 The structure 20 is a member disposed between the casing 10 and the center conductor 30, and is a member that insulates between the casing 10 and the center conductor 30. An example of the material for forming the structure 20 is an insulating epoxy resin.

構造体２０には、第１端子部２１Ａ，２１Ｂと、第２端子部２２と、が設けられている。
第１端子部２１Ａ，２１Ｂは、筺体１０および構造体２０に凹状に形成された部分であり、筒状の筺体１０における両端に形成されている。第１端子部２１Ａ，２１Ｂは、第１ケーブル５０Ａおよび第２ケーブル５０Ｂの接続端末５１Ａ，５１Ｂが着脱される部分である。 The structure 20 is provided with first terminal parts 21A, 21B and a second terminal part 22.
The first terminal portions 21A and 21B are concave portions formed in the housing 10 and the structure 20, and are formed at both ends of the cylindrical housing 10. The first terminal parts 21A, 21B are parts to which the connection terminals 51A, 51B of the first cable 50A and the second cable 50B are attached and detached.

第１端子部２１Ａ，２１Ｂは、接続端末５１Ａ，５１Ｂの外形と対応する円筒形状および円錐台形状を足し合わせた内周面を有する凹形状に形成されている。凹状の接続端末５１Ａ，５１Ｂにおける底部には、先端部５３Ａ，５３Ｂが差し込まれる凹みが形成され、当該凹みには中心導体３０が露出している。 The first terminal portions 21A, 21B are formed in a concave shape with an inner peripheral surface that is a sum of a cylindrical shape and a truncated cone shape corresponding to the outer shape of the connection terminals 51A, 51B. A recess into which the tip portions 53A, 53B are inserted is formed at the bottom of the recessed connection terminals 51A, 51B, and the center conductor 30 is exposed in the recess.

第２端子部２２は、筺体１０における開口部１１から突出して形成された構造体２０の部分であり、終端接続部６１が着脱される部分である。第２端子部２２は、終端接続部６１の接続凹部６３の内面形状と対応する円錐台状の形状を有している。第２端子部２２における端面には中心導体３０が露出している。 The second terminal portion 22 is a portion of the structure 20 formed to protrude from the opening 11 in the housing 10, and is a portion to which the terminal connection portion 61 is attached and detached. The second terminal portion 22 has a truncated conical shape corresponding to the inner surface shape of the connection recess 63 of the terminal connection portion 61 . The center conductor 30 is exposed at the end surface of the second terminal portion 22 .

中心導体３０は構造体２０の内部に配置される部材である。中心導体３０は導電性を有する材料、例えば銅から形成されている。中心導体３０は、第１端子部２１Ａ，２１Ｂの間をつないで配置され、第１端子部２１Ａ，２１Ｂの内面に露出している。第１端子部２１Ａ，２１Ｂの内面に露出している中心導体３０は、接続端末５１Ａ，５１Ｂの先端部５３Ａ，５３Ｂと導電可能に接触する。 The center conductor 30 is a member placed inside the structure 20. The center conductor 30 is made of a conductive material, such as copper. The center conductor 30 is arranged to connect between the first terminal parts 21A and 21B, and is exposed on the inner surface of the first terminal parts 21A and 21B. The center conductor 30 exposed on the inner surface of the first terminal portions 21A, 21B is in conductive contact with the tip portions 53A, 53B of the connection terminals 51A, 51B.

中心導体３０は、第１端子部２１Ａ，２１Ｂの間から第２端子部２２に向かって延びている。言い換えると中心導体３０はＴ字状に形成されている。第２端子部２２に向かう中心導体３０は、第２端子部２２の内部を通り第２端子部２２の端面に露出している。 The center conductor 30 extends toward the second terminal portion 22 from between the first terminal portions 21A and 21B. In other words, the center conductor 30 is formed in a T-shape. The center conductor 30 facing the second terminal portion 22 passes through the inside of the second terminal portion 22 and is exposed at the end surface of the second terminal portion 22 .

第２端子部２２の端面に露出している中心導体３０は、終端接続部６１の接続端子６４と導電可能に接触する。第２端子部２２における接続端子６４と接触する面には、接続端子６４との固定に用いられる１つの第２固定部３１が設けられている。第２固定部３１は、終端接続部６１の第２ボルト６５に対応するボルト孔である。 The center conductor 30 exposed on the end surface of the second terminal portion 22 is in conductive contact with the connection terminal 64 of the terminal connection portion 61 . One second fixing part 31 used for fixing to the connecting terminal 64 is provided on the surface of the second terminal part 22 that comes into contact with the connecting terminal 64 . The second fixing part 31 is a bolt hole corresponding to the second bolt 65 of the terminal connection part 61.

第２固定部３１は、第１固定部１５と比較して孔の径が大きなボルト孔である。言い換えると、第２固定部３１は、第１固定部１５よりも径が太く大きなボルトに対応したボルト孔である。 The second fixing portion 31 is a bolt hole having a larger hole diameter than the first fixing portion 15 . In other words, the second fixing part 31 is a bolt hole that accommodates a bolt that is thicker and larger in diameter than the first fixing part 15 .

次に、上記の構成からなるケーブル接続装置１に対する第１ケーブル５０Ａ、第２ケーブル５０Ｂおよび第３ケーブル６０の接続について説明する。
第１ケーブル５０Ａおよび第２ケーブル５０Ｂは、図１に示すように、ケーブル接続装置１の第１端子部２１Ａ，２１Ｂに接続される。具体的には、接続端末５１Ａ，５１Ｂが第１端子部２１Ａ，２１Ｂに挿入される。このとき先端部５３Ａ，５３Ｂが、第１端子部２１Ａ，２１Ｂに露出する中心導体３０と導電可能に接触する。 Next, the connection of the first cable 50A, second cable 50B, and third cable 60 to the cable connection device 1 having the above configuration will be explained.
The first cable 50A and the second cable 50B are connected to the first terminal portions 21A and 21B of the cable connection device 1, as shown in FIG. Specifically, the connection terminals 51A, 51B are inserted into the first terminal portions 21A, 21B. At this time, the tip portions 53A, 53B come into conductive contact with the center conductor 30 exposed to the first terminal portions 21A, 21B.

また、第１ケーブル５０Ａおよび第２ケーブル５０Ｂは、第１固定部１５および第１固定部１５に対応するボルト（図示せず。）を用いて、ケーブル接続装置１の筺体１０に固定される。 Further, the first cable 50A and the second cable 50B are fixed to the housing 10 of the cable connection device 1 using the first fixing part 15 and bolts (not shown) corresponding to the first fixing part 15.

第３ケーブル６０は、ケーブル接続装置１の第２端子部２２に接続される。具体的には、終端接続部６１の接続凹部６３に第２端子部２２が挿入される。終端接続部６１の第２ボルト６５が中心導体３０の第２固定部３１に螺合される。第３ケーブル６０の接続端子６４は、中心導体３０と導電可能に接触し、第３ケーブル６０はケーブル接続装置１に固定される。 The third cable 60 is connected to the second terminal section 22 of the cable connection device 1. Specifically, the second terminal portion 22 is inserted into the connection recess 63 of the terminal connection portion 61 . The second bolt 65 of the terminal connection portion 61 is screwed into the second fixing portion 31 of the center conductor 30 . The connection terminal 64 of the third cable 60 is in conductive contact with the center conductor 30, and the third cable 60 is fixed to the cable connection device 1.

上記の構成のケーブル接続装置１によれば、第２端子部２２における中心導体３０が露出する面に１つの第２固定部３１が設けられている。この第２固定部３１を用いて終端接続部６１を第２端子部２２に固定することができる。言い換えると、第２端子部２２の中心導体３０に終端接続部６１が固定される。 According to the cable connection device 1 having the above configuration, one second fixing portion 31 is provided on the surface of the second terminal portion 22 where the center conductor 30 is exposed. The terminal connection part 61 can be fixed to the second terminal part 22 using this second fixing part 31 . In other words, the terminal connection portion 61 is fixed to the center conductor 30 of the second terminal portion 22 .

ここで、ケーブル接続装置１の周囲には他の機器が配置され、ケーブルの接続作業を行う空間が少ない。１つの第２固定部３１を用いて終端接続部６１を第２端子部２２に固定することにより、複数の第２固定部を用いて固定を行う場合と比較して、狭い空間での固定作業が行いやすい。 Here, other devices are arranged around the cable connection device 1, and there is little space for cable connection work. By fixing the terminal connection part 61 to the second terminal part 22 using one second fixing part 31, fixing work can be performed in a narrow space compared to the case where fixing is performed using a plurality of second fixing parts. is easy to do.

また、第２端子部２２に接続される第３ケーブル６０は、ケーブル接続装置１が配置された鉄道車両の機器に接続される。連結された２つの鉄道車両をわたって敷設される場合がある第１ケーブル５０Ａおよび第２ケーブル５０Ｂと比較して、第２端子部２２と第３ケーブル６０との接続部分に求められる機械的強度は低い。 Further, the third cable 60 connected to the second terminal portion 22 is connected to equipment of a railway vehicle in which the cable connection device 1 is arranged. Mechanical strength required for the connection portion between the second terminal portion 22 and the third cable 60 compared to the first cable 50A and the second cable 50B that may be laid across two connected railway vehicles is low.

そのため、１つの第２固定部３１を用いて終端接続部６１を第２端子部２２に固定することでも当該接続部分に求められる機械的強度を確保しやすい。例えば、第２固定部３１に螺合されるボルトの径を太くし、当該接続部分に求められる機械的強度を確保することができる。また、第２固定部３１に螺合されるボルトの径を太くしても、使用されるボルトの数が１つでありケーブル接続装置１が大型化しにくい。 Therefore, even by fixing the terminal connection part 61 to the second terminal part 22 using one second fixing part 31, it is easy to ensure the mechanical strength required for the connection part. For example, the diameter of the bolt screwed into the second fixing part 31 can be increased to ensure the required mechanical strength of the connection part. Further, even if the diameter of the bolt screwed into the second fixing portion 31 is increased, only one bolt is used, and the cable connecting device 1 is not easily enlarged.

第１端子部２１Ａ，２１Ｂの周囲に複数の第１固定部１５を設けて接続端末５１Ａ，５１Ｂの固定に用いることにより、１つの第１固定部を用いてケーブル接続装置１に接続端末５１Ａ，５１Ｂを固定する場合と比較して、機械的強度を確保しやすい。 By providing a plurality of first fixing parts 15 around the first terminal parts 21A, 21B and using them to fix the connection terminals 51A, 51B, one first fixing part can be used to connect the connection terminals 51A, 51B to the cable connection device 1. Compared to the case where 51B is fixed, it is easier to ensure mechanical strength.

上述のように第１ケーブル５０Ａおよび第２ケーブル５０Ｂの少なくとも一方は、連結された２つの鉄道車両をわたって敷設される場合がある。ケーブル接続装置１が配置された鉄道車両内でケーブルが敷設される場合と比較して、第１端子部２１Ａ，２１Ｂと第１ケーブル５０Ａおよび第２ケーブル５０Ｂとの接続部分は、鉄道車両の走行による振動や衝撃や、車両の屈曲による外力を受けやすい。 As described above, at least one of the first cable 50A and the second cable 50B may be laid across two connected railway vehicles. Compared to the case where the cable is laid within the railway vehicle in which the cable connection device 1 is arranged, the connection portion between the first terminal portions 21A, 21B and the first cable 50A and the second cable 50B is It is susceptible to vibrations and shocks caused by the vehicle, as well as external forces caused by the bending of the vehicle.

複数の第１固定部１５を設けて接続端末５１Ａ，５１Ｂの固定に用いることにより、１つの第１固定部１５を用いて固定する場合と比較して、当該接続部分に求められる機械的強度を確保しやすい。 By providing a plurality of first fixing parts 15 and using them to fix the connection terminals 51A and 51B, the mechanical strength required for the connection part can be reduced compared to the case of fixing using one first fixation part 15. Easy to secure.

また、複数の第１固定部１５を設けて固定することにより、第１固定部１５に螺合されるボルトの径を細くしても当該接続部分に求められる機械的強度を確保しやすい。そのため、当該接続部分に求められる機械的強度を確保しつつ、ケーブル接続装置１の大型化を抑制しやすい。 In addition, by providing and fixing the plurality of first fixing parts 15, it is easy to ensure the mechanical strength required for the connection part even if the diameter of the bolt screwed into the first fixing part 15 is reduced. Therefore, it is easy to prevent the cable connection device 1 from increasing in size while ensuring the mechanical strength required for the connection portion.

遮蔽部１７を設けることにより、開口部１１からケーブル接続装置１の内部に異物が侵入することを防ぎやすくなる。また、開口部１１を設けることにより、開口部１１を設けない場合と比較して、第２端子部２２を有する構造体２０を取り付けやすくなり、ケーブル接続装置１を製造しやすくなる。 By providing the shielding portion 17, it becomes easier to prevent foreign matter from entering the inside of the cable connection device 1 through the opening 11. Furthermore, by providing the opening 11, it becomes easier to attach the structure 20 having the second terminal portion 22, and it becomes easier to manufacture the cable connection device 1, compared to the case where the opening 11 is not provided.

開口部１１に配置された遮蔽部１７は、筺体１０の外面と同一の面を構成している。そのため、遮蔽部１７が筺体１０の外面から突出している場合と比較して、筺体１０に近い位置に終端接続部６１を接続することができる。 The shielding portion 17 disposed in the opening 11 forms the same surface as the outer surface of the housing 10 . Therefore, compared to the case where the shielding part 17 protrudes from the outer surface of the housing 10, the terminal connection part 61 can be connected to a position closer to the housing 10.

中心導体３０をＴ字状に形成することにより、ケーブル接続装置１を３つの端子を有する分岐用接続部として用いることができる。具体的には、２つの第１端子部２１Ａ，２１Ｂと、１つの第２端子部２２を有する分岐用接続部として用いることができる。 By forming the center conductor 30 in a T-shape, the cable connection device 1 can be used as a branch connection portion having three terminals. Specifically, it can be used as a branch connection part having two first terminal parts 21A, 21B and one second terminal part 22.

なお、本発明の技術範囲は上記実施形態に限定されるものではなく、本発明の趣旨を逸脱しない範囲において種々の変更を加えることが可能である。
例えば、ケーブル接続装置１は、上述の実施形態のように第１端子部２１Ａおよび第１端子部２１Ｂを直線状に延びる中心導体３０の端部に配置し、第２端子部２２を分岐した中心導体３０の端部に配置してもよいし、図６に示すように、直線状に延びる中心導体３０の端部に第１端子部２１Ａおよび第２端子部２２を配置し、分岐した中心導体３０の端部に第１端子部２１Ｂを配置してもよい。 Note that the technical scope of the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention.
For example, in the cable connection device 1, the first terminal portion 21A and the first terminal portion 21B are arranged at the ends of the central conductor 30 extending linearly, and the second terminal portion 22 is arranged at the branched center. Alternatively, as shown in FIG. 6, the first terminal portion 21A and the second terminal portion 22 may be placed at the end of the central conductor 30 extending linearly, and the branched central conductor may be placed at the end of the conductor 30. The first terminal section 21B may be arranged at the end of the terminal section 30.

例えば、ケーブル接続装置１は、図７に示すように、直線状に延びる中心導体３０の端部に第１端子部２１Ａおよび第２端子部２２を配置し、分岐した中心導体３０の端部にガイシ７１および接続端子７２を配置したものであってもよい。 For example, as shown in FIG. 7, the cable connection device 1 arranges the first terminal portion 21A and the second terminal portion 22 at the end of the central conductor 30 extending linearly, and arranges the first terminal portion 21A and the second terminal portion 22 at the end of the central conductor 30 that branches. The insulator 71 and the connection terminal 72 may be arranged.

例えば、ケーブル接続装置１は、図８に示すように、直線状に延びる中心導体３０の端部に第１端子部２１Ａおよび第２端子部２２を配置したものであってもよい。また、ケーブル接続装置１は、図９に示すように、Ｌ字状に延びる中心導体３０の端部に第１端子部２１Ａおよび第２端子部２２を配置したものであってもよい。 For example, as shown in FIG. 8, the cable connection device 1 may be one in which the first terminal portion 21A and the second terminal portion 22 are arranged at the ends of a central conductor 30 extending linearly. Further, as shown in FIG. 9, the cable connection device 1 may be one in which the first terminal portion 21A and the second terminal portion 22 are arranged at the end of the central conductor 30 extending in an L-shape.

中心導体３０を直線状またはＬ字状に形成することにより、ケーブル接続装置１の一端に接続端末５１Ａをつなぎ、他端に終端接続部６１をつなぐことができる。 By forming the center conductor 30 in a straight line or L-shape, the connection terminal 51A can be connected to one end of the cable connection device 1, and the terminal connection part 61 can be connected to the other end.

１…ケーブル接続装置、 １０…筺体、 １１…開口部、 １７…遮蔽部、 １５…第１固定部、 ２０…構造体、 ２１Ａ，２１Ｂ…第１端子部、 ２２…第２端子部、 ３０…中心導体、 ３１…第２固定部、 ５１Ａ，５１Ｂ…接続端末（第１接続部）、 ６１…終端接続部（第２接続部） DESCRIPTION OF SYMBOLS 1... Cable connection device, 10... Housing, 11... Opening, 17... Shielding part, 15... First fixing part, 20... Structure, 21A, 21B... First terminal part, 22... Second terminal part, 30... Center conductor, 31...Second fixed part, 51A, 51B...Connection terminal (first connection part), 61...Terminal connection part (second connection part)

Claims (4)

第１接続部と第２接続部とに導電可能に接続されるケーブル接続装置であって、
導電性を有する中心導体と、
絶縁性を有する材料から形成され、前記中心導体の周囲を覆う構造体と、
前記構造体の周囲を覆う筺体と、
前記筺体および前記構造体に凹状に形成された部分であって、凹状の内面に前記中心導体が前記第１接続部と導電可能に露出する第１端子部と、
前記筺体から突出して形成された前記構造体の部分であって、突出部分の端部に前記中心導体が前記第２接続部と導電可能に露出し、当該中心導体の露出面に前記第２接続部の固定に用いられる１つの第２固定部が設けられている第２端子部と、
を有し、
前記筺体には前記第２端子部が突出する開口部が設けられ、
前記開口部における前記筺体と前記第２端子部との隙間を塞ぐ遮蔽部が、前記筺体に対して着脱可能に設けられている、
ケーブル接続装置。 A cable connection device electrically conductively connected to a first connection part and a second connection part,
a central conductor having electrical conductivity;
a structure formed from an insulating material and surrounding the center conductor;
a casing that covers the periphery of the structure;
a first terminal portion that is a concave portion formed in the housing and the structure, and in which the center conductor is exposed on the concave inner surface so as to be conductive with the first connection portion;
A portion of the structure that is formed to protrude from the housing, wherein the center conductor is exposed at an end of the protruding portion so as to be electrically conductive with the second connection portion, and the second connection is formed on the exposed surface of the center conductor. a second terminal portion provided with one second fixing portion used for fixing the second terminal portion;
has
The housing is provided with an opening from which the second terminal portion projects,
A shielding portion that closes a gap between the housing and the second terminal portion in the opening is removably provided to the housing.
Cable connection device. 前記筺体における前記第１端子部と隣接する領域には、前記第１接続部の固定に用いられる複数の第１固定部が設けられている請求項１記載のケーブル接続装置。 2. The cable connection device according to claim 1, wherein a plurality of first fixing parts used for fixing the first connection part are provided in an area of the housing adjacent to the first terminal part. 前記中心導体はＴ字状に形成され、
２つの前記第１端子部が前記中心導体の２つの端部に設けられ、
１つの前記第２端子部が前記中心導体の１つの端部に設けられている請求項１又は請求項２に記載のケーブル接続装置。 The center conductor is formed in a T-shape,
The two first terminal portions are provided at two ends of the center conductor,
The cable connection device according to claim 1 or 2, wherein one of the second terminal portions is provided at one end of the center conductor. 前記中心導体は直線状またはＬ字状に形成され、
１つの前記第１端子部が前記中心導体の一方の端部に設けられ、
１つの前記第２端子部が前記中心導体の他方の端部に設けられている請求項１から３のいずれか１項に記載のケーブル接続装置。 The center conductor is formed in a straight line or an L-shape,
one of the first terminal portions is provided at one end of the center conductor;
The cable connection device according to any one of claims 1 to 3, wherein one of the second terminal portions is provided at the other end of the center conductor.
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