JP2012079490A - Transmitting connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a transmitting connector in which connector contact segments absorb coupling errors and maintain contact segment positions to allow a shield structure.SOLUTION: The connector comprises: a first connector body 42 comprising a plurality of first contact segments 72, first dielectrics 432 and 724 having as many through holes 433 and 725 as there are of the segments 72 to regulate relative positional relationships between the contact segments, and a first shield member 42A covering the dielectric and the contact segments; a second connector body 38 comprising a plurality of second, cylindrical contact segments 71 connected to the segments 72 a second dielectric 40 having as many through holes 41 as there are of the segments 71 to regulate relative positional relationships between the segments 71 and fix the segments 71; and a second shield member 38A covering the dielectric 40 and the segments 71; and a casing 3 covering the connector bodies 42 and 38 and having position regulating means 32 and 43 for the connector bodies. Elastic bodies 723a are disposed in the through holes 725 to load the first contact segments, so that when the segments 72 are pressed, the segments 72 are moved against repulsive forces of the elastic bodies.

Description

  The present invention relates to a transmission connector, and more particularly, to a transmission connector used in a signal connection device that performs electrical division and connection for information transmission between vehicles.

In trains, there are cases where trains are divided at intermediate stations depending on the destinations of the trains, or trains coming from different places are connected at intermediate stations.
In addition, when the vehicle is regularly inspected, it is divided because it is necessary to carry out maintenance separately for each vehicle, and are connected again after the maintenance is completed.
In order to cope with such a mode of operation, a mechanical coupler that mechanically divides and links before and after the vehicle, and a signal connection device that performs electrical division and coupling to transmit information between the vehicles ( Electrical coupler, jumper coupler, etc.) are installed.

  When connecting the signal connection devices, variation (connection error) occurs in the relative positional relationship of the signal connection devices attached to the respective vehicles to be connected. Therefore, each signal installed in the signal connection device and the connection device. It is necessary to give a certain tolerance (aggregation range) to the relative positional relationship between the pins (contact pieces) of the transmission connector.

  Therefore, in the invention disclosed in Patent Document 1, a so-called butting contact method is adopted in which the pair of contact pieces come into contact with each other and are pressed against each other. In the abutting contact method, it is possible to absorb the connection error by increasing the size of the contact surface of the contact. Further, in Patent Document 1, in order to deal with substantial misalignment in the vertical and horizontal directions, a swing mechanism is adopted for the pins so that the range in which each pin can be contacted is widened.

  With the invention disclosed in Patent Document 1, the contactable range of the contact piece of the signal connection device can be expanded more than before.

  On the other hand, railway vehicles perform data communication such as control signals (including maintenance signals) and service signals (media signals). The communication line for performing the data communication connects the vehicles via the signal connection device. However, since the signal connection device is arranged outside the vehicle, an electromagnetic noise is applied to the communication line and a communication error is generated. May occur. For this reason, it is common for the communication line to have a shield structure.

  In addition, in recent years, high-speed and large-capacity data communication for rail vehicles has been used, and a 100BASE-TX high-speed broadband network with a transmission speed of 100 Mbps has been used. It is easily affected.

  In the case of a high-speed broadband network, signal connection devices are connected to each other in accordance with the 100BASE-TX standard using twisted-pair wires (twisted-pair wires) as signal wires. However, it is required to make it less susceptible to electromagnetic noise by impedance matching, but it is also required to provide a shield structure between vehicles in consideration of the influence of noise.

  In order to achieve impedance matching in the transmission connector, it is necessary to keep the distance between the contact pieces in the transmission connector constant, and to arrange a dielectric for keeping the impedance constant between them. The positional relationship with the dielectric must be kept constant.

  However, as described above, a connection error occurs when the vehicle is connected. Therefore, a structure that can absorb the connection error is required even in the contact piece of the transmission connector that constitutes the signal connection device. In order to cope with this, it is required to satisfy the conflicting conditions that the distance between the contact pieces and the positional relationship with the dielectric are kept constant and the shield structure is formed.

Japanese Patent No. 4040258

  The present invention was invented in view of the above circumstances, and the problem to be solved is that at least the contact piece of the transmission connector constituting the signal connection device absorbs the coupling error, and at the same time, An object of the present invention is to provide a transmission connector capable of realizing a shield structure while keeping the positional relationship of contact pieces constant.

  Therefore, in the transmission connector according to the present invention, the same number of through holes as the number of contact pieces is used to regulate the relative positional relationship between the plurality of first contact pieces having protrusions and having a rod shape and the central axis in the longitudinal direction. A first connector body comprising a first shield member having a first shield member and a first shield member to which the first dielectric member and the first dielectric member are attached to cover the first dielectric member and the first contact piece in a cylindrical shape; A second contact piece that regulates the relative positional relationship between a plurality of cylindrical second contact pieces that are located behind the body and are connected to the contact pieces of the first connector body and the central axis in the longitudinal direction thereof. The second dielectric member having the same number of through holes as the number of contact pieces and the second dielectric member are attached, and the second shield member covers the second dielectric member and the second contact piece in a cylindrical shape. A second connector body, and a first connector body and a second connector body covered in a cylindrical shape. A housing having means for restricting the position of the connector body, and an elastic body disposed between the protrusion of the first contact piece and the first dielectric and biasing the two apart from each other, The first contact piece is movable in the direction of the central axis when the front tip portion of one contact piece is pushed in.

  The transmission connector of the present invention is a transmission connector using a so-called contact type contact, and by ensuring that the contact surface has a certain area, the connection of the contact piece is ensured even when there is a connection error and the contact piece is misaligned. can do. However, the butt contact method requires an urging force to apply a contact pressure to the contact piece in order to maintain the connection, and for this purpose, at least one contact piece is movable in the direction of receiving the contact pressure. And shall be.

  On the other hand, in the connection between vehicles using such a transmission connector, a shield structure and impedance management to reduce the influence of noise are required. For this purpose, the positions of a plurality of contact pieces are fixed. In addition, a dielectric for managing impedance must be disposed between the contact piece and the shield member.

However, since it is necessary to fix the positional relationship between the shield member and the contact piece by this dielectric, the conventional structure cannot make the contact piece movable in the axial direction.
According to the present invention, by dividing the contact piece, the dielectric, and the shield member, it is possible to achieve both the function of fixing the positional relationship of the contact piece and the function of allowing movement while holding the contact piece. Become.

According to the present invention, it is possible to provide a transmission connector capable of maintaining the shielding effect even when there is a relative displacement between the transmission connectors, and reducing noise and transmission even in a train compatible with a high-speed broadband network. Signal degradation can be suppressed.

It is a perspective view of the electrical coupler which has the concave side connector of Example 1 which concerns on this invention. It is a perspective view of the electrical coupler which has a convex side connector of Example 1 concerning the present invention. It is a side view which shows the connection state of the electrical coupler of Example 1 which concerns on this invention. It is a perspective view of the concave side connector of Example 1 concerning the present invention. It is a perspective view of the convex side connector of Example 1 concerning the present invention. It is a disassembled perspective view of the concave side connector of Example 1 which concerns on this invention. FIG. 3 is a partially cutaway front view and left and right side views in a state where an external force is not applied to the concave connector according to the first embodiment of the present invention. It is a partially cutaway front view and left and right side views in a state where an external force is applied to the concave connector of Embodiment 1 according to the present invention. It is a disassembled perspective view of the convex connector of Example 1 which concerns on this invention. It is a partially cutaway front view and left and right side views in a state where no external force is applied to the convex connector of Example 1 according to the present invention. It is a partially cutaway front view and left and right side views in a state where an external force is applied to the convex connector of Example 1 according to the present invention. It is a partially notched front view in case a concave side connector and a convex side connector are on a connection center in connection with the electrical couplers of Example 1 which concern on this invention. Partial cut in the case where the concave connector and the convex connector are off the connection center but are on the same axis as the electrical couplers of Example 1 according to the present invention are connected to each other. FIG. It is an impedance-time diagram of Example 1 which concerns on this invention, and is a figure which shows the measurement result at the time of measuring a characteristic impedance by the TDR method about the transmission connector which concerns on this invention. It is a perspective view by the side of a jumper stopper which has a convex side connector of Example 2 concerning the present invention. It is a perspective view by the side of a jumper stopper which has a concave side connector of Example 2 which concerns on this invention. It is a side view which shows the connection state of the jumper coupler of Example 2 which concerns on this invention. FIG. It is a perspective view of the convex connector of Example 2 which concerns on this invention. It is a perspective view of the concave side connector of Example 2 which concerns on this invention. It is a disassembled perspective view of the convex side connector of Example 2 which concerns on this invention. It is a partially cutaway front view and left and right side views in a state in which no external force is applied to the convex connector of Example 2 according to the present invention. It is a partially cutaway front view and left and right side views in a state where an external force is applied to the convex connector of Example 2 according to the present invention. It is a disassembled perspective view of the concave side connector of Example 2 which concerns on this invention. It is a partially cutaway front view and left and right side views of the concave connector according to Embodiment 2 of the present invention. It is a partially notched front view in case a concave side connector and a convex side connector exist on a connection center in connection with the jumper stopper receiving side and jumper stopper side of Example 2 which concern on this invention. It is an impedance-time diagram of Example 2 which concerns on this invention, and is a figure which shows the measurement result at the time of measuring a characteristic impedance by the TDR method about the transmission connector which concerns on this invention.

  Hereinafter, modes for carrying out the present invention (hereinafter referred to as embodiments) will be exemplarily described based on examples. However, the dimensions, materials, shapes, relative arrangements, and the like of the components described in this embodiment are not intended to limit the scope of the present invention unless otherwise specified.

(Overview)
FIGS. 1-16 is a figure which shows Example 1 of the connector for transmission of this invention.
The transmission connector according to the present invention is used in a so-called electric coupler as shown in FIGS. As is well known, an electrical coupler is a signal connection device that is used when coupling a plurality of knittings into one large knitting or dividing a knitting into small knittings. Installed in the rear vehicle.

  The transmission connector according to the present invention is incorporated in the concave connector 2A as shown in FIG. 4 incorporated in one electrical connector 1A (see FIG. 1) and the other electrical connector 1B (see FIG. 2). There is a convex connector 2B as shown in FIG.

  Then, when the electrical couplers 1A and 1B are coupled by the coupling of the vehicle (see FIG. 3), the concave connector 2A and the convex connector 2B installed in the respective housings of the electrical couplers 1A and 1B Is connected. The electrical couplers 1A and 1B are integrated with a mechanical coupler (not shown) provided in the vehicle, and are automatically connected and separated according to the coupling and separation of the mechanical coupler.

(Concave connector)
The concave connector 2A will be described with reference to FIGS. 4 and 6 to 8.
The concave connector 2A includes a sleeve 3 as a housing having a hollow cylindrical shape with openings at both ends, a shield body 4 fitted in the sleeve 3 and longer in the axial direction than the sleeve 3, and the sleeve 3 and the shield body 4 The compression spring 5 of the elastic member located between the pins 7 and the pins 7 as the four contact pieces arranged in the dielectrics 40, 724 and 432 filled in the shield body 4 are connected to the pins 7. The cable clamp 8 is located on the side to which a cable (electric wire) (not shown) is connected.

  In the present specification, in the transmission connector, the side with the cable is referred to as the rear side, and the opposite side, that is, the pin tip side is referred to as the front side. In addition, the upper side is the upper side, the lower side is the lower side, the right side is the right side, and the left side is the left side. This applies not only to the concave connector 2A but also to the convex connector 2B.

(sleeve)
The sleeve 3 has a front end portion in the longitudinal direction that is a thick portion 31 that is thicker than other portions of the sleeve 3. Further, the thick portion 31 is formed with a taper 311 whose diameter is widened toward the rear from a position located slightly inward in the axial direction from the opening end.

  Further, four through holes 32 are bored at intervals of 90 degrees on the same circumference at a position located somewhat forward from the rear end of the sleeve 3 (see FIGS. 4 and 6). That is, the four through holes 32 are respectively 2 on two orthogonal axes (the vertical axis Cv and the horizontal axis Ch extending in the horizontal and vertical directions in FIG. 6) orthogonal to the central axis C (see FIG. 6). They are formed in pairs. Unless otherwise specified, the direction in which the central axis C extends is referred to as the axial direction. Note that the vertical axis Cv and the horizontal axis Ch are not necessarily orthogonal to each other. Further, the number of through holes 32 is not limited to four. For example, three or more pairs (6) of through holes may be formed.

  Furthermore, at the rear end portion of the sleeve 3, the outer peripheral surface is partially cut away to form a cutout flat portion 33 (see FIG. 4). By forming the cutout flat portion 33 in the sleeve 3, the cross section of at least a part of the concave connector 2A, that is, the cross section of the sleeve 3 where the cutout flat portion 33 is formed becomes noncircular.

(Shield body)
The shield body 4 is a shape body that is fitted into the sleeve 3 in a loosely-fitted state and combines two portions in the axial direction. One of the parts is a base indicated by reference numeral 38, and the other part is reciprocally movable in the direction of the central axis C with respect to the base 38 (second connector body). It is the moving part 42 (1st connector body) (refer FIG. 6). Any part is made of a conductive material.

(base)
As shown in FIG. 6, the base 38 has a cylindrical second shield member 38A and a dielectric 40 filled in the second shield member 38A. The second shield member 38A has a pipe shape extending in the axial direction, and the central portion 411 in the longitudinal direction is a large-diameter portion in which one or more steps are formed in a step shape on the outer peripheral surface when viewed in a longitudinal section. ing. The front side of the central portion 411 is referred to as a front cylinder part 412, and the rear side is referred to as a rear cylinder part 413. The rear cylinder part 413 has a larger inner diameter and outer diameter than the front cylinder part 412. In addition, the hollow part of the base part 38 is shown with the code | symbol 40a. The hollow 40 a includes a front hollow portion 401 a formed in the front cylinder portion 412 and a rear hollow portion 401 b formed in the rear cylinder portion 413. The rear hollow portion 401b has a larger diameter than the front hollow portion 401a. For this reason, in the hollow 40a, the level | step difference 401c is formed between the front hollow part 401a and the back hollow part 401b.

  Two pairs of screw holes 411a are formed in the central portion 411 (only one screw hole of each pair is shown in the drawing). The formation location is a location corresponding to the two pairs of through holes 32 of the sleeve 3 when the shield body 4 is fitted into the sleeve 3. In addition, a set screw 43 is screwed into the two pairs of screw holes 411a after passing through the through holes 32, respectively. Then, the two pairs of set screws 43 screwed into the two pairs of screw holes 411a are inserted through the two pairs of through holes 32 formed in the sleeve 3 in a loose state so as to be inserted through the two holes. The diameter of 32 is set large (so-called fool hole state). Each pair of the two pairs of through-holes 32 and each pair of the two pairs of set screws 43 are placed on coaxial lines (vertical axis Cv and horizontal axis Ch extending in the horizontal and vertical directions in FIG. 6), respectively. It is like that. In addition, the set screw 43 may have three pairs (six or more) like the through hole 32.

  In addition, in the hollow 40a of the second shield member 38A, a portion that is somewhat behind the center portion 411 of the second shield member 38A and reaches the tip of the front cylindrical portion 412 has a shape that matches the shape of the hollow 40a. The dielectric 40 is filled. Therefore, the dielectric 40 has a small diameter portion 400a and a large diameter portion 400b, similarly to the hollow 40a, and thus has a step 400c. When the dielectric 40 is placed in the hollow 40a, the step 400c of the dielectric 40 and the step 401c of the hollow 40a abut.

Around the central axis C of the dielectric 40, four base holes 41 through which the four pins 7 are respectively inserted are formed in parallel with the central axis C.
The base hole 41 includes a large diameter portion 41a, a small diameter portion 41b, and an inward flange 41c formed therebetween. The large-diameter portion 41 a starts from the substantially center of the central portion 411 in the axial direction and penetrates from there to the rear end of the dielectric 40. The inward flange 41c forms a passage having a smaller diameter than the small-diameter portion 41b, and is about a quarter of the length of the large-diameter portion 41a. The small diameter portion 41 b starts from the inward flange 41 c and penetrates from there toward the front end of the dielectric 40.

  Further, on the inner surface of the rear end portion in the hollow of the rear cylinder portion 413, a screw groove 414 for screwing a later-described tightening fitting of the cable clamp 8 is formed over the entire circumference.

(Moving part)
The moving part 42 includes a cylindrical first shield member 42A and dielectrics 432 and 724 filled in the first shield member 42A. The first shield member 42A has a pipe shape extending in the axial direction. The outer diameters of the flange-shaped central portion 420 and the front end 422 in the longitudinal direction of the first shield member 42A are made larger than those of other portions. The other parts are a part 423 a between the center part 420 and the front end part 422 and a part 423 b behind the center part 420. Since the portions 423a and 423b are cylindrical portions located in front of and behind the central portion 420, they are referred to as a front cylindrical portion 423a and a rear cylindrical portion 423b, respectively.

  When the shield body 4 is fitted to the sleeve 3, the thick portion 31 of the sleeve 3 is positioned on the front cylindrical portion 423a, and the compression spring 5 is fitted on the rear cylindrical portion 423b. Further, the length dimension in the axial direction of the front cylindrical portion 423 a is longer than the length dimension in the axial direction of the thick portion 31.

  The central portion 420 has an outer diameter larger than that of the front cylindrical portion 423a and the rear cylindrical portion 423b, and the front portion thereof is tapered. The taper is indicated by reference numeral 420a. Further, the outer diameter of the central portion 420 is equal to the outer diameter of the central portion 411 of the base portion 38.

  Further, the front end portion 422 of the first shield member 42A has a cylindrical shape from the opening end of the first shield member 42A to a location somewhat rearward. The outer diameter of the front end portion 422 is slightly smaller than the opening diameter of the thick portion 31 of the sleeve 3.

The hollow of the first shield member 42A is indicated by reference numeral 42a. The front cylindrical portion 412 of the second shield member 38A of the base portion 38 is fitted into the hollow 42a. Thereby, the moving part 42 and the base part 38 are integrated in the state which can be located in the front-back direction on the central axis C, and can slide.
Furthermore, the hollow 42 a has a guide port 424 a that is widened in a tapered shape so as to expand toward the front at the front end 422.

  In addition, a first hollow portion 424b, a second hollow portion 424c, and a third hollow portion 424d, all of which have a hollow cylindrical shape and are coaxially positioned, are continuously formed behind the guide port 424a. (See FIGS. 6 and 7). The second hollow portion 424c has a larger inner diameter than the first hollow portion 424b, and the third hollow portion 424d has a larger inner diameter than the second hollow portion 424c. Therefore, there are steps 425 and 426 between the first hollow portion 424b and the second hollow portion 424c and between the second hollow portion 424c and the third hollow portion 424d (see FIGS. 6 and 7).

  In addition, the first hollow portion 424b is filled with a dielectric 432 having a shape that matches the inner shape of the first hollow portion 424b, that is, a cylindrical shape. A flange portion 432a is formed on the rear portion of the dielectric 432 so as to project over the entire periphery thereof. Further, the front edge of the dielectric 432 is tapered around the entire periphery. In addition, the front surface of the dielectric 432 has an introduction hole 433 having a tapered end extending in parallel with the central axis C and having the same diameter around the central axis C so that each pin described later of the convex connector 2B can be called. And it has four in parallel with the central axis C at intervals of 90 degrees. The tip portion is referred to as an expanded portion and is indicated by reference numeral 433a. Then, the introduction hole 433 is formed with a small-diameter hole 433b and a large-diameter hole 433c continuously from the widened portion 433a, which are coaxially positioned and penetrate the dielectric 432 (see FIG. 6). .

  Such a dielectric 432 is inserted into the hollow of the moving part 42 from behind. And if the dielectric 432 reaches the 1st hollow part 424b, the flange part 432a will contact | abut on the level | step difference 425, and the progress to the front of the dielectric 432 will be prevented (refer FIG. 6).

Next, a screw groove 427 is formed on the rear end side of the second hollow portion 424c (see FIG. 6). The screw groove 427 will be described later.
A cylindrical contact piece spring 428 made of a conductive material and inscribed in the third hollow portion 424d is provided on the rear end side of the third hollow portion 424d (see FIG. 6). The inner diameter when the contact piece spring 428 is fitted in the third hollow portion 424d and the front cylinder portion 412 of the base portion 38 so that the sliding between the moving portion 42 and the base portion 38 is not hindered by the contact piece spring 428. The outer diameter is determined.
By interposing the contact piece spring 428 between the base portion 38 and the moving portion 42, electrical connection between the base portion 38 and the moving portion 42 is maintained.

(Compression spring)
The compression spring 5 is made of a conductive metal, and is externally fitted to the rear cylindrical portion 423b of the moving portion 42 before the base portion 38 and the moving portion 42 are combined. When the base portion 38 and the moving portion 42 are combined, the base portion 411 is positioned between the central portion 411 of the base portion 38 and the central portion 420 of the moving portion 42.

(pin)
Each of the four pins 7 is made of a conductive material, and each pin 7 is a female pin in which two divided portions are combined in the axial direction to form an integrated rod-like body (for example, FIG. 6-8). One of the parts constituting the female pin is a cylindrical base 71 (second contact piece) that is a hollow cylindrical body, and the other one moves back and forth in the axial direction with respect to the cylindrical base 71. This is a rod-shaped movable portion (first contact piece) 72 having a rod shape that comes into contact with the pins of the convex connector 2B.

  The cylindrical base 71 is inserted into the base hole 41 of the dielectric 40, and a large diameter cylindrical portion 71a corresponding to the large diameter portion 41a, the small diameter portion 41b, and the inward flange 41c of the base hole 41, respectively. And a small-diameter cylindrical portion 71b (see FIGS. 6 to 8). A locking spring 711 for locking to the inward flange 41c is attached to a portion of the small diameter cylindrical portion 71b near the large diameter cylindrical portion 71a. When the cylindrical base 71 is inserted into the base hole 41 of the dielectric body 40, the locking spring 711 is locked to the front edge of the inward flange 41c, whereby the cylindrical base 71 is removed from the base hole 41. Is prevented, and the position of the dielectric 40 is fixed. Further, each base hole 41 restricts the relative positional relationship of a center axis (not shown) extending in the longitudinal direction of the cylindrical base 71 by inserting the cylindrical base 71 into each of them.

A conductive contact spring 73 is provided in the hollow of the small-diameter cylindrical portion 71b (see FIG. 6).
The contact piece spring 73 is a cylindrical body that is fitted in the hollow of the small diameter cylindrical portion 71b in a tightly fitted state. The contact piece spring 73 maintains continuity between the cylindrical base 71 and the rod-like movable portion 72.
The large-diameter cylindrical portion 71a is a place where the pin 7 is connected to the cable.

  The rod-like movable portion 72 is a rod-like body extending in the axial direction, and an overhanging flange 721 is formed at the front-center portion in the longitudinal direction of the rod-like movable portion 72 (see FIGS. 6 to 8). The front side is a large-diameter bar portion 722 having a relatively large diameter with respect to the rear side, and the rear side is a small-diameter bar portion 723 having a small diameter.

A conductive compression spring 723a is externally fitted to the small-diameter bar portion 723 so as to come into contact with the overhanging flange 721. The diameter of the portion where the compression spring 723a is externally fitted in the small-diameter bar portion 723 is slightly smaller than the diameter of the overhanging flange 721 (see, for example, FIGS. 6 to 8).

  A round groove 722a is formed at the tip of the large-diameter bar 722 (see FIG. 12), and the rear end of the small-diameter bar 723 is a hemispherical hemisphere 723b. The circular groove 722a connects the electrical connectors 1A and 1B so that when the concave connector 2A and the convex connector 2B are connected, the pin 7 of the concave connector 2A is the pin of the convex connector 2B. This is a place where the tip of 7B is received with a certain contact area. A transmission connector according to the present invention that employs such a contact between pins that can secure a certain contact area is referred to as an abutting contact type transmission connector.

(Dielectric)
Such a rod-like movable portion 72 is inserted into the four through holes 725 formed in the cylindrical dielectric 724 and the large-diameter hole 433 c and the small-diameter hole 433 b of the introduction hole 433 of the dielectric 432. . Thereby, the relative positional relationship between center axes (not shown) extending in the longitudinal direction of the rod-like movable portion 72 is regulated.

The dielectric 724 provided with the rod-shaped movable part 72 is inserted into the hollow of the moving part 42 from behind.
Similar to the introduction hole 433 of the dielectric 432, four through-holes 725 are formed around the central axis C at intervals of 90 degrees in parallel with the central axis C. However, the rod-shaped movable part 72 and the through holes 725 are not limited to four. The arrangement of the rod-shaped movable part 72 and the through hole 725 may not be on the circumference of the same radius. That is, the number and arrangement of the rod-like movable parts 72 may be appropriately determined according to the cable specifications.

  The through-hole 725 is slightly larger than the large-diameter hole portion 725a having a diameter somewhat larger than the diameter when the compression spring 723a is externally fitted to the small-diameter rod portion 723 of the rod-shaped movable portion 72, and the small-diameter rod portion 723. The small-diameter hole portion 725b having the same diameter is formed so as to be positioned coaxially. Of the small-diameter bar portion 723, a portion where the compression spring 723a is externally fitted is accommodated in the large-diameter hole portion 725a, and a portion of the small-diameter rod portion 723 where the compression spring 723a is not externally fitted is accommodated in the small-diameter hole portion 725b. (See FIG. 6).

  Further, the front end portion of the small-diameter cylindrical portion 723 fitted with the compression spring 723a is accommodated together with the overhanging flange 721 in the large-diameter hole portion 433c of the introduction hole 433 of the dielectric 432, and the large-diameter rod portion 722 of the rod-like movable portion 72 is accommodated. Is inserted into the small-diameter hole portion 433b of the introduction hole 433 of the dielectric 432 (see FIGS. 7 and 8). The outer diameter of the rod-like movable part 72 and the inner diameter of the introduction hole 433 are set so that the rod-like movable part 72 can slide in the introduction hole 433.

  The dielectric 724 has an overhanging flange-shaped fixing metal 726 attached to the rear portion thereof, and a screw groove 726a is formed in the dielectric 724. The screw groove 726 a is for fixing the dielectric 724 to the moving part 42 by screwing this with the screw groove 427 of the hollow 42 a of the moving part 42.

(cable clamp)
As shown in FIG. 6, the cable clamp 8 includes a clamp 81, a sealing gasket 82, a washer 83, and a fastening fitting 84 arranged in order from the front in the axial direction. A screw groove 841 is cut on the outer periphery of the fastening fitting 84 and is screwed with the screw groove 414 formed in the rear of the hollow 40a of the base portion 38 as described above.

  When the cable clamp 8 is tightened, the clamp 81 comes into contact with the rear end of the dielectric 40 and further tightens, so that the dielectric 40 tends to move forward of the base 38. However, since the step 400c of the dielectric 40 abuts on the step 401c in the hollow 40a, further progress of the dielectric 40 is prevented. Further, since the cable clamp 8 is behind the dielectric 40, the dielectric 40 is prevented from coming out from the rear of the base portion 38.

(assembly)
Next, the assembly procedure of the concave connector 2A will be described.
However, it is assumed that the dielectric 432 is incorporated in the first hollow portion 424b of the moving portion 42 and the contact piece spring 428 is provided in the rear cylindrical portion 423b in advance. Further, it is assumed that a rod-like movable portion 72 in which a compression spring 723a of the pin 7 is externally fitted is incorporated in the dielectric 724.

  Similarly, even in the base portion 38, the cylindrical base portion 71 is inserted into the base hole 41 of the dielectric body 40, and the cable clamp 8 is fastened to the base portion 38 to prevent the dielectric body 40 from coming off. It shall be. Further, the positions of the dielectrics 432, 724 and 40 in the circumferential direction are determined by using a positioning mark (not shown) as a mark.

  By determining the position in the circumferential direction, the introduction hole 433 of the dielectric 432, the through hole 725 of the dielectric 724, and the base hole 41 of the dielectric 40 are aligned coaxially and parallel to the central axis C, and the pin 7 is inserted. Four pin holes are formed around the central axis C at the same diameter and at intervals of 90 degrees.

  First, the dielectric 724 is inserted into the rear cylindrical part 423b of the moving part 42 and passed through the contact piece spring 428, and then the screw groove 726a formed in the fixing bracket 726 of the dielectric 724 and the hollow 42a of the moving part 42 And a screw groove 427 formed on the screw. As a result, the front end of the dielectric 724 presses the rear end of the flange portion 432a of the dielectric 432, and the flange 432a and the step 425 in the hollow 42a of the moving portion 42 come into firm contact, and the dielectric 432 Maintain position.

  Thus, the dielectric 432 and the dielectric 724 are integrated on the central axis C line in the hollow 42a. The integrated body is called a first dielectric. Further, by integrating, the large-diameter rod portion 722 of the rod-shaped movable portion 72 is positioned in the small-diameter hole portion 433 b of the dielectric 432. Then, the overhanging flange 721 of the rod-like movable portion 72 and a part of the small-diameter rod portion 723 of the rod-like movable portion 72 to which the compression spring 723a is fitted are positioned in the large-diameter hole portion 433c of the dielectric 432. . In this manner, the positions of the dielectrics 432 and 724 are fixed with respect to the first shield member 42A of the moving part 42, and the position of the rod-shaped movable part 72 is fixed with respect to the dielectrics 432 and 724.

  Next, after the compression spring 5 is externally fitted to the rear cylindrical part 423b of the moving part 42, the moving part 42 and the base part 38 are combined by fitting the front cylindrical part 412 of the base part 38 into the rear cylindrical part 423b. Then, the cylindrical base 71 of the pin 7 attached to the base 38 is fitted on the rod-like movable part 72 of the pin 7 attached to the moving part 42.

Specifically, the small-diameter rod portion 723 of the rod-like movable portion 72 is fitted into the small-diameter cylinder portion 71 b of the cylindrical base portion 71. At this time, electrical contact between the rod-like movable portion 72 and the cylindrical base portion 71 is ensured through the contact piece spring 73 of the cylindrical base portion 71.
The compression spring 5 is located between the central portion 411 of the base portion 38 and the central portion 420 of the moving portion 42, and is externally fitted to the rear cylindrical portion 423b of the moving portion 42.

Furthermore, the compression spring 5 is somewhat longer than the distance between the central portion 411 of the base portion 38 and the central portion 420 of the moving portion 42. By doing in this way, the taper 311 formed in the thick part 31 of the sleeve 3 and the taper 420a of the moving part 42 are pressed against each other in an elastic state. In this way, the shield body 4 is assembled.

  Next, such a shield body 4 is inserted into the sleeve 3 from behind. Thereafter, the set screws 43 are screwed into the four screw holes 411 a of the base portion 38 via the through holes 32 of the sleeve 3. By doing so, the concave connector 2A as shown in FIG. 4 is assembled. Thereby, the sleeve 3 and the shield body 4 overlap on the central axis C (see FIG. 7).

  In the concave connector 2A, the dielectric 432 and dielectric 724 in the moving part 42 and the dielectric 40 of the base 38 are sequentially arranged on the central axis C in the axial direction. At this time, the length of the third hollow portion 424d formed in the rear cylindrical portion 423b of the moving portion 42 so that the gap S is placed between the rear surface of the dielectric 724 and the front surface of the dielectric 40 of the base portion 38. The length of the front cylindrical portion 412 of the base portion 38 and the length and elasticity of the compression spring 5 are set (see FIGS. 7 and 8).

  This gap S is different when the concave connector 2A is not connected to the convex connector 2B. When not connected, as shown in FIG. 7, the moving portion 42 largely protrudes forward due to the elasticity of the compression spring 5, and the front end portion 422 and the front cylindrical portion 423 a protrude from the sleeve 3. large.

  When connected in the opposite direction, the moving portion 42 is pushed into the sleeve 3 against the elastic force of the compression spring 5 as shown in FIG. 8, and only the front end portion 422 protrudes from the sleeve 3, that is, Since the front cylindrical portion 423a is in the sleeve 3, the gap S is correspondingly small. When the gap S is small, the resilience of the compression spring 5 is increased.

  Further, in the state where the moving part 42 protrudes largely forward as shown in FIG. 7, the taper 311 formed in the thick part 31 of the sleeve 3 and the taper 420 a of the moving part 42 are in an elastic state, and the taper 311 The taper 420a is securely in contact with the taper 420a. On the contrary, when the moving part 42 is pushed into the sleeve 3 against the compression spring 5 as shown in FIG. 8, the taper 311 formed in the thick part 31 of the sleeve 3 and the taper 420 a of the moving part 42. Are separated from each other. If the force that pushes the moving part 42 is released, the moving part 42 moves forward and returns to the state shown in FIGS.

  Such a concave connector 2A is inserted into the connector insertion hole 11A (see FIG. 1) of the electrical coupler 1A. By inserting the concave connector 2A into the connector insertion hole 11A, the concave connector 2A and the connector insertion hole 11A share the central axis C. That is, they are located on concentric circles.

  However, the connector insertion hole 11 </ b> A is formed with a protrusion corresponding to the cutout flat portion 33 of the sleeve 3. For this reason, even if it exists in 11 A of connector insertion holes, the cross section of the location in which the said protrusion is formed is non-circular. As a result, when the concave connector 2A is inserted into the connector insertion hole 11A, the concave connector 2A cannot rotate with respect to the connector insertion hole 11A even if both are placed concentrically.

  In addition, although the small diameter rod part 723 of the rod-shaped movable part 72 is illustrated as being fitted in the small diameter cylinder part 71b of the cylindrical base part 71, the small diameter rod part 723 of the rod-shaped movable part 72 is formed into a cylindrical shape, and the small diameter of the cylindrical base part 71 is obtained. You may make it the rod-shaped movable part 72 fit by the cylinder base 71 by making the cylinder part 71b into a rod shape.

(Convex connector)
Next, the convex connector 2B will be described with reference to FIGS.
The difference between the convex connector 2B and the concave connector 2A is that the shape of the second shield member of the moving part 42B corresponding to the moving part 42 of the concave connector 2A and the dielectric corresponding to the dielectric 432 of the concave connector 2A. The shape of the body 432B, the shape of the pin 7B corresponding to the pin 7 of the concave connector 2A, and the locations related to them.
Therefore, the difference between the convex connector 2B and the concave connector 2A will be described, and the same parts as those of the concave connector 2A will be denoted by the same reference numerals and the description thereof will be omitted.

The moving part 42B of the convex connector 2B has a taper 422B tapered on the front end edge of the second shield member 42A ′.
This taper 422B replaces the guide port 424a expanded in the tapered shape of the concave connector 2A, and is located in front of the front cylindrical portion 423a. The angle of the taper 422B with respect to the central axis C and the angle of the taper of the guide port 424a with respect to the central axis C are the same.

  Since the moving part 42B has the taper 422B, the moving part 42B is easily introduced into the guide port 424a of the moving part 42 in the concave connector 2A.

(Dielectric)
There is nothing on the front surface of the dielectric 432B corresponding to the expanded portion 433a of the concave connector 2A, and the front edge is not tapered. In other words, the dielectric 432B has a cylindrical portion and a projecting flange portion 432a formed at the rear end thereof, and has a shape in which four introduction holes 433 are formed around the central axis C at intervals of 90 degrees. is doing.

(pin)
The pin 7B is a male pin. And the front-end | tip of the rod-shaped movable part 72B corresponded to the rod-shaped movable part 72 of the concave side connector 2A is the round protrusion 722b which can be fitted in the round groove 722a of the rod-shaped movable part 72 of the concave side connector 2A (refer FIG. 12). . The pin 7B has a tip including the round protrusion 722b protruding from the front end surface of the dielectric 432B, but is within the first hollow 424b of the hollow 42a of the moving part 42B.

  When such a convex connector 2B is not connected to the concave connector 2A, the moving part 42B protrudes largely forward as shown in FIG. 10, and the front cylindrical part 423a and the taper 422B protrude from the sleeve 3. Therefore, the gap S is large.

  When connected in the opposite direction, as shown in FIG. 11, the moving part 42 is pushed into the sleeve 3 against the elastic force of the compression spring 5, and only the taper 422B protrudes from the sleeve 3, that is, Since the front cylindrical portion 423a is in the sleeve 3, the gap S is correspondingly small.

  When the gap S is small, the resilience of the compression spring 5 is increased. Therefore, the contact pressure between the tapered surface of the guide port 424a of the concave connector 2A and the taper 422B of the moving part 42B of the convex connector 2B increases.

(Action / Effect)
Next, the operation and effect of the first embodiment will be described with reference to FIGS.
When the electrical couplers 1A and 1B are coupled, the concave connector 2A incorporated in the electrical coupler 1A and the convex connector 2B incorporated in the electrical coupler 1B are opposed to each other. Without it, electrical connection is not possible.

  Therefore, the formation positions of the connector insertion holes 11A and 11B into which the concave connector 2A and the convex connector 2B are inserted in the electrical couplers 1A and 1B are predetermined when the electrical couplers 1A and 1B are coupled. On the same axis. The same axis is denoted by reference numeral C1, and hereinafter referred to as a connection center C1.

  Accordingly, when the electrical connectors 1A and 1B are connected with the concave connector 2A and the convex connector 2B inserted into the connector insertion holes 11A and 11B, respectively, the concave connector 2A and the convex connector 2B are connected to the connection center C1. Both are connected in the state where is located.

  Then, when the electrical couplers 1A and 1B are connected, the moving part 42B of the convex connector 2B is introduced into the moving part 42 of the concave connector 2A. Specifically, the taper 422B hung on the front end edge of the moving part 42B comes into contact with the guide port 424a of the moving part 42 so that the center axis C of both transmission connectors is positioned on the connection center C1 (see FIG. 12). .

  Since the guide port 424a is expanded in a tapered shape toward the front, and the taper 422B is tapered, even if the central axes C of the two transmission connectors 2A and 2B are shifted in connection, It becomes easy to pick up.

  Specifically, even if either one of the concave connector 2A and the convex connector 2B or both of them are deviated from the place (the connection center C1) where they should be, The taper surface of the guide port 424a of the side connector 2A and the taper 422B of the moving part 42B of the convex connector 2B slide in a surface contact state. As a result, the concave connector 2A and the convex connector 2B come closer to each other, so that both the convex connector 2B and the concave connector 2A are positioned on the connection center C1.

  When both the connectors 2A and 2B are located at the connection center C1, both the connectors 2A and 2B are electrically connected. That is, each of the four pins 7A of the electric coupler 1A and the pin 7B of the electric coupler 1B are in contact with each other.

  Contact between pins is referred to as internal contact, and contact between the tapered surface 424a of the concave connector 2A and the taper 422B of the convex connector 2B is referred to as external contact. Due to the internal contact, signals are exchanged between the electronic devices of the connected vehicles. Moreover, the shield between vehicles is connected by external contact.

  In the internal contact, the round protrusion 722b of the pin 7B hits the round groove 722a of the pin 7. Each of the pins 7 and 7B receives the elastic force of the respective compression springs 723a, and resists the elastic force of the compression springs 723a in accordance with the magnitude of the external force. Stroke in the direction of the central axis). In this way, the abutting state between the pins 7 and 7B is maintained. That is, when the stroke is absorbed by the compression spring 723a, the contact pressure of the pins 7 and 7B is maintained.

  In the external contact, the moving parts 42 and 42B receive the repulsive force of the compression spring 5 with respect to the base part 38 attached to the sleeves 3 and 3B with the set screw 43, so that the magnitude of the external force is reduced. It moves back and forth in response. That is, the abutting state of the pins 7 and 7B is secured while the moving portions 42 and 42B are pressed against the other moving portions 42B and 42 by the compression spring 5 of each transmission connector. The external force referred to here means that the electrical couplers 1A and 1B move when the train travels or stops in a state where the mechanical couplers are coupled to each other and the electrical couplers 1A and 1B are coupled accordingly. This refers to the external force of vibration.

  In addition, each shield body 4 has a set screw 43 that is paired with a vertical axis Cv and a horizontal axis Ch that are orthogonal to the central axis C (see FIG. 6) as rotation centers in the sleeve 3 or 3B. Are inserted through the paired through-holes 32, whereby each shield member 4 rotates up and down, left and right in the sleeve 3 or 3B and moves in a direction non-parallel to the central axis C. It is like that.

  Therefore, the set screw 43 and the through hole 32 are referred to as a rotating means that rotates about the vertical axis Cv and the horizontal axis Ch. Note that the range in which the shield member 4 can be rotated vertically and horizontally is limited to the range in which the set screw 43 can move in the through hole 32. Therefore, the set screw 43 and the through hole 32 are referred to as restricting means.

  Further, when the electrical couplers 1A and 1B receive an external force, the concave connector 2A and the convex connector 2B on the coupling center C1 are disengaged from the coupling center C1 by shifting from side to side or up and down as shown in FIG. Even in this case, the moving portions 42 and 42B are pressed against each other by the compression springs 5 of the respective transmission connectors, and move in the front-rear direction on the connection center C11. When the moving parts 42 and 42B push the other against each other, the gaps S become smaller and the resilience of the compression spring 5 becomes stronger. Therefore, the contact pressure between the tapered surface of the guide port 424a of the concave connector 22A and the taper 422B of the moving part 42B of the convex connector 2B increases.

  Therefore, even if the concave connector 2A and the convex connector 2B are displaced from the connection center C1 as a result of the vibration of the electrical couplers 1A and 1B, the shield body 4 has the vertical axis Cv and the horizontal axis Ch as described above, respectively. It is a combination of rotating up, down, left and right around the center of rotation, and the moving parts 42, 42B pressing against each other against the elastic force of the compression spring 5 of each transmission connector. Thus, the state where the gap S is small is maintained. The smaller the gap S, the higher the contact pressure between the tapered surface of the guide port 424a of the concave connector 2A and the taper 422B of the moving part 42B of the convex connector 2B, and the shield bodies 4 of the respective transmission connectors 2A and 2B are It stays on the same axis C11.

Further, the four pins 7 and 7B inserted into the pin holes parallel to the central axis C are also positioned in parallel around the central axis C at the same diameter and at intervals of 90 degrees.
In the connector 2A of the electrical coupler 1A, since the expanded portion 433a is formed for each of the four pins 7, the pin 7B of the convex connector 2B of the electrical coupler 1B is expanded to the expanded portion 433a. Therefore, the pins 7 and 7B are easy to contact on the same axis.

  Further, the concave connector 2A and the convex connector 2B are abutting contact systems, and as described above, a contact area between the pins can be secured to some extent, so that the permissible range of connection of the pins 7 and 7B alone. Can be spread. In addition, even if the concave connector 2A and the convex connector 2B are deviated from the connection center C1 due to vibration, each shield body 4 is within the sleeve 3 with the vertical axis Cv and the horizontal axis Ch being the rotation centers, respectively. Rotating up and down, left and right and against the elastic force of the compression spring 5 of each connector 2A and 2B, the moving parts 42 and 42B press against each other and the tapered surface of the guide port 424a of the concave connector 2A Combined with the increased contact pressure with the taper 422B of the moving part 42B of the convex connector 2B, the shield members 4 of the connectors 2A, 2B are on the same axis C11, and only one rod-like body is formed. It moves as if it moves up, down, left and right.

  As a result, the 7 and 7B pins of the concave connector 2A and the convex connector 2B can further prevent misalignment when they are connected. Therefore, each of the pins 7 and 7B of the concave connector 2A and the convex connector 2B can substantially increase the allowable range relative to the other pins 7B and 7 with respect to each other.

  In addition, the pins 7 and 7B of the concave connector 2A and the convex connector 2B are attached to the dielectrics 40, 724 and 432 for keeping the impedance constant in a state where the distance from the central axis C is kept constant. It has been. Therefore, by managing the impedance between the signal lines in each cable connected to the connectors 2A and 2B and taking impedance matching, it can be made less susceptible to electromagnetic noise.

  Furthermore, FIG. 14 is an impedance-time diagram in which the vertical axis represents impedance and the horizontal axis represents time, and the measurement results when the characteristic impedance is measured by the TDR method for the transmission connector according to the present invention. Is shown.

  The TDR (Time Domain Reflectometory) method applies a high-speed pulse to the object to be measured, and observes the reflected wave that is generated when the pulse propagates inside the non-measurement object. This is a technique for measuring the characteristic impedance of an object to be measured by utilizing the change depending on the impedance.

  Simply put, it is a method of applying a pulse or step signal to the cable or printed circuit board and observing the reflected waveform that is returned. The reflected waveform in FIG. 14 represents a change in characteristic impedance in the transmission line in a state where the concave connector 2A and the convex connector 2B are connected and an electric wire is connected to each connector.

  The time when the pulse is propagated and the reflected wave returns depends on the propagation speed of the pulse in the object to be measured, so by observing over time, the place where the characteristic impedance in the object to be measured changes, It can be specified by the time at which reflection occurs.

The characteristic impedance measurement this time uses the above-described TDR method, so that the state of the characteristic impedance of the connector portion, which is the original measurement object, can be known.
Further, the reason why the horizontal time axis can be identified with the measurement section is that the traveling speed of the pulse in the object to be measured is constant, so that the time axis can be regarded as the distance axis as it is.

  In the diagram of FIG. 14, the portions projecting downward on both sides indicate the impedance of the electric wire in a state where the concave connector 2 </ b> A and the convex connector 2 </ b> B are connected to the electric wire, respectively. From FIG. 14, according to the concave connector 2A and the convex connector 2B of the couplers 1A and 1B of the first embodiment, the impedance of the entire transmission path including the measurement target section, that is, the connection portion is set to a value near the impedance of the electric wire itself. Can be maintained.

(Overview)
Next, Embodiment 2 of the transmission connector of the present invention will be described with reference to FIGS.
The signal connection device according to the second embodiment is a so-called jumper coupler.

  The jumper coupler is installed in a vehicle other than the leading and trailing vehicles. The vehicles will not be separated from each other except when it is necessary to separate and maintain the vehicle in units such as during periodic inspections. For this reason, the vehicle in which the jumper coupler is used is electrically connected via a human hand.

Compared with the first embodiment, the second embodiment is largely different in configuration as follows.
In the first embodiment, the shield member 4 is rotated with respect to the sleeve 3 about the vertical axis Cv and the horizontal axis Ch in both the pair of the concave connector 2A and the convex connector 2B. In addition, the moving portion 42 has a central axis C with respect to the base portion 38 which is a constituent member of the shield member 4 with respect to the sleeve 3.
Stroke in the direction.

On the other hand, in Example 2, although the shield body moves back and forth with respect to the sleeve, it does not rotate at all.
Furthermore, in the second embodiment, one of the pair of transmission connectors is configured such that the moving part and the plurality of pins that similarly constitute the shield body stroke in the direction of the central axis C with respect to the base part that is a constituent member of the shield body. In the other transmission connector, the shield body and the pin do not stroke.
Note that the same portions as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.

  FIG. 15 shows a signal connection device attached to a vehicle, which is called a jumper stopper receiving side, and is denoted by reference numeral 1C. FIG. 16 is called a jumper plug side that is connected to the jumper plug receiving side through a human hand, and is denoted by reference numeral 1D.

  FIG. 17 shows a state in which the jumper stopper receiving side 1C and the jumper stopper side 1D are connected. In this connection, the transmission connector according to the second embodiment is used for electrical connection. The transmission connector used for the jumper plug receiving side 1C is the convex connector 2C shown in FIG. 18 and corresponds to the convex connector 2B according to the first embodiment. Further, the concave connector 2D shown in FIG. 19 is used for the jumper plug side 1D and corresponds to the concave connector 2A according to the first embodiment.

Hereinafter, the convex connector 2C and the concave connector 2D will be described.
(Convex connector)
The convex connector 2 </ b> C will be described with reference to FIGS. 15, 17, 18, and 19 to 22.

  The difference between the convex connector 2C and the convex connector 2B according to the first embodiment is that the shield body moves back and forth with respect to the sleeve as described above, but the vertical axis Cv and the horizontal axis Ch are the rotation centers. Do not rotate at all. In addition, the sleeve which concerns on the convex side connector 2C is shown with the code | symbol 3C, and a shield body is shown with the code | symbol 4C.

  Since the shield member 4C does not rotate with respect to the sleeve 3C as described above, the gap between the two when the shield body 4C is fitted into the sleeve 3C is the same as that when the shield body 4 is fitted into the sleeve 3 in the first embodiment. It may be smaller than the gap between the two.

  In the hollow of the sleeve 3C, a step 311C is formed at a position 1/4 of the front portion in the axial direction, and four through holes 32C have the same circumference at a position slightly forward from the rear end of the sleeve 3C. It is perforated at intervals of 90 degrees (see FIGS. 20 to 22). The through hole 32C has a smaller diameter than the through hole 32 of the first embodiment (not a fool hole).

  Note that what is indicated by reference numeral 301a is a clip provided at the front end of the sleeve 3C for fixing the convex connector 2C in the case of the jumper stopper receiving side 1C.

  As shown in FIG. 15, the convex connector 2C is inserted into the connector insertion hole 11C on the jumper stopper receiving side 1C. By inserting the convex connector 2C into the connector insertion hole 11C, the convex connector 2C and the connector insertion hole 11C share the central axis C. That is, they are located on concentric circles.

Furthermore, as a constituent member of the convex connector 2C, there is a moving part 42C corresponding to the moving part 42B of the first embodiment. The moving part 42C is different from the moving part 42B in that there is no flange-shaped central part 420 of the moving part 42B, and there are a front cylindrical part 423a and a rear cylindrical part 423b. And the outer diameter of the back cylinder part 423b is larger than the front cylinder part 423a. Since the structure in the hollow of the moving part 42C is the same as that of the moving part 42B, the same reference numerals are given and description thereof is omitted.

(Concave connector)
Next, the concave connector 2D will be described with reference to FIGS. 16 and 23 to 25.
The concave connector 2D does not have a sleeve.
As shown in FIG. 23, the concave connector 2D has a shape similar to the moving portion 42 of the first embodiment. Specifically, the concave connector 2D has a hollow cylindrical main body portion 21 in which the rear cylindrical portion 423b of the moving portion 42 is first shortened. Then, instead of the guide port 424a of the moving part 42, a clip 301a is provided at the front end part.

  The clip 301a is also for fixing the concave connector 2D in the case of the jumper plug side 1D.

  Inside the main body portion 21, a first hollow portion 212a and a second hollow portion 212b, which have a hollow cylindrical shape and are positioned coaxially, are continuously formed (see FIG. 23). The inner diameter of the second hollow portion 212b is larger than that of the first hollow portion 212a. Therefore, there is a step 214 between the first hollow portion 212a and the second hollow portion 212b. The dielectric 432C is inserted into the first hollow portion 212a and a part of the second hollow portion 212b from the rear of the second hollow portion 212b. Further, a screw groove 414 is formed at the tail end of the second hollow portion 212b.

  The dielectric 432C has substantially the same shape as that of the dielectric 432 of the first embodiment except for the length. The lengths are different because the shapes of the pins 7C inserted into the dielectric 432C are different. Therefore, the same parts as those of the dielectric 432 in the dielectric 432C are denoted by the same reference numerals and description thereof is omitted. However, the step between the small diameter portion 433b and the large diameter portion 433c of the dielectric 432C is denoted by reference numeral 433d.

  Similarly to the pin 7, the pin 7C is made of a conductive material. The pin 7C is different from the pin 7 in that the pin 7 is a female pin in which two parts are combined in the axial direction into an integrated rod-like body, whereas the pin 7C is a female pin consisting of one part. In that point. A spring 711 is also locked to the inward flange 41c on the pin 7C, thereby preventing the pin 7C from coming off from the dielectric 432C.

  The concave connector 2D also has the cable clamp 8, and when this is screwed with the screw groove 414, the clamp 81 comes into contact with the rear end of the dielectric 432C, and further tightens, whereby the dielectric 432C becomes the dielectric 432C. Trying to move forward in the hollow. However, since the step 433d of the dielectric 432C contacts the step 214 in the hollow, the progress of the dielectric 432C is prevented, and the dielectric 432C is prevented from coming off from the base 38.

  Each pin 7B of the convex connector 2C is attached to the dielectrics 40, 724, and 432B for keeping the impedance constant while the distance from the central axis C is kept constant. Therefore, by managing the impedance between the signal lines in each cable connected to the convex connector 2C and taking impedance matching, it can be made less susceptible to electromagnetic noise.

  Each pin 7C of the concave connector 2D is attached to a dielectric 432C for keeping the impedance constant in a state where the distance from the central axis C is kept constant. Therefore, by managing the impedance between the signal lines in each cable connected to the concave connector 2D and taking impedance matching, it can be made less susceptible to electromagnetic noise.

1A Electric connector 1B Electric connector 1C Jumper plug receiving side 1D Jumper plug side 2A Concave connector (Transmission connector)
2B Convex connector (transmission connector)
2C Convex connector (transmission connector)
2D concave connector (transmission connector)
3 Sleeve (housing)
3B Sleeve (housing)
3C sleeve (housing)
4 Shield body 4C Shield body 5 Compression spring (elastic body)
7 Pin 7B Pin 7C Pin 8 Cable Clamp 11A Connector Insertion Hole 11B Connector Insertion Hole 11C Connector Insertion Hole 11D Connector Insertion Hole 12 Concave Side Connector 21 Main Body 31 Thick Wall 32 Passing Hole
32C through hole 38 base (second connector body)
38A Second shield member 40 Dielectric (second dielectric)
40a hollow 41 base hole (through hole)
41a Large diameter portion 41b Small diameter portion 41c Flange 42 Moving portion (first connector body)
42A first shield member 42B moving part 42C moving part 42a hollow 43 set screw (regulating means shaft part)
71 Cylindrical base (second contact piece)
71a Large-diameter cylindrical portion 71b Small-diameter cylindrical portion 72 Rod-shaped movable portion (first contact piece)
72B Rod-shaped movable part 73 Contact piece spring 81 Clamp 82 Gasket 83 Washer 84 Metal fitting 211 Flange 211a Notch part 212a Hollow part 212b Hollow part 214 Step 301 Small diameter part 301a Clip 302 Large diameter part 311 Taper 311C Step 401a Front hollow part 401b Rear hollow Part 401c step 400a small diameter part 400b large diameter part 400c step 411 center part 411a screw hole 412 front cylinder part 413 rear cylinder part 414 screw groove 420 center part 420a taper 422 front end part 422B taper 423a front cylinder part 423b rear cylinder part 424a guide port 424b First hollow portion 424c Second hollow portion 424d Third hollow portion 425 Step 426 Step 427 Screw groove 428 Contact piece spring 432 Dielectric (first dielectric)
432B Dielectric 432C Dielectric 432a Flange 433 Introduction hole (through hole)
433a Widened portion 433b Small diameter hole portion 433c Large diameter hole portion 433d Step 711 Spring 711 Locking spring 721 Flange 722 Large diameter rod portion 722a Round groove 722b Round protrusion 723 Small diameter cylindrical portion 723a Compression spring (elastic body)
723b Hemispherical part 724 Dielectric (first dielectric)
725 Through-hole 725a Large-diameter hole 725b Small-diameter hole 726 Fixing bracket 726a Screw groove 841 Screw groove C Center axis C1 Connection center C11 Same axis Ch Horizontal axis Cv Vertical axis S Gap

Claims (5)

A plurality of rod-shaped first contact pieces;
A first dielectric having a number of through holes equal to the number of the first contact pieces in order to regulate the relative positional relationship between the central axes extending in the longitudinal direction of the first contact pieces;
A first connector body comprising: a first shield member attached to the first dielectric body and covering the first dielectric body and the first contact piece in a cylindrical shape;
A plurality of second contact pieces located behind the first connector body and connected to the contact pieces of the first connector body;
The second contact piece has the same number of through holes as the number of the second contact pieces in order to restrict the relative positional relationship of the central axes extending in the longitudinal direction of the second contact pieces and to fix the second contact pieces. A dielectric of
A second connector body comprising the second dielectric body and a second shield member, which is attached to the second dielectric body and covers the second contact piece in a cylindrical shape; and
A casing having a regulating means for covering the first connector body and the second connector body in a cylindrical shape and regulating the position of the connector body;
An elastic body disposed in the through hole of the first dielectric body and biasing the first contact piece has an elastic force when the front end portion of the first contact piece is pushed in. A transmission connector characterized in that the first contact piece is movable in the direction of the central axis.   2. The transmission connector according to claim 1, wherein a part of the second connector body is included in a cylindrical space behind the first shield member, and the inner peripheral portion of the first shield member and the second And an elastic body that urges the first connector body and the second connector body away from each other in the direction of the central axis of the cylinder. On the other hand, by reducing the outer diameter of the first connector body and the second connector body, the first connector body can move in the central axis direction when the first connector body is pushed in from the front. A transmission connector, wherein the first connector body and the second connector body are movable in a direction non-parallel to the central axis.   3. The transmission connector according to claim 2, wherein the restricting means rotates the first connector body and the second connector body about a central axis when the first connector body is pushed from the front. A connector for transmission characterized by regulating the amount.   4. The transmission connector according to claim 3, wherein a plurality of restriction members for restricting the amount of rotation are formed in at least two holes provided in the housing and the second shield member, and are inserted into the holes in a loose state. A transmission connector comprising a shaft portion.   5. The transmission connector according to claim 1, wherein the front connection surface of the first shield member is expanded in a taper shape in the female connector, and is tapered in the male connector. 6. And a dielectric connector of the female connector having a lead hole formed in the number of contact pieces centered on the contact piece and expanded in a tapered shape.

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