JP2014241251A - Multipole connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a multipole connector in which the space can be saved at the interface part, while dealing with multipole interface, and which can deal even with the multistage arrangement where a plurality of conductor connections are arranged in the vertical direction for a mounting substrate.SOLUTION: A multipole connector includes a plurality of split connectors 7, 8 where conductors 2, 3 are held, respectively, by split housings 5, 6 in a shape of splitting a housing 4 into multiple parts. At the joint end face of one 5 of mutually adjoining split housings 5, 6, a key fitting part 16 to be fitted with a coupling key 15 is formed. Both split housings 5, 6 are joined by fitting the coupling key 15 in the key fitting part 16, and interposing the coupling key 15 across the joint end faces, thus coupling the mutually adjoining split connectors 7, 8.

Description

  The present invention relates to a connector such as an in-vehicle coaxial connector and the like, and relates to a multipolar connector in which a plurality of conductor connecting portions connected to a mating conductor are arranged on a front surface portion.

  A coaxial connector with excellent high-frequency performance is used to connect the information communication antenna to the in-vehicle device, and the antenna and the in-vehicle device are electrically connected via the coaxial connector mounted on the board mounted on the in-vehicle device. It is supposed to be.

  On the other hand, in recent years, with the spread of digital communication, etc., there has been a demand for more efficient connection work between the antenna and in-vehicle devices and multi-interfaces. Has been dealt with by mounting a plurality of single-pole coaxial connectors (see, for example, Patent Document 1) side by side on a substrate.

  In addition, as a connector corresponding to multipolarization, an integrated multipolar connector provided with a parallel connection with a plurality of conductive body connecting portions spaced horizontally in the front surface of a housing body made of insulating synthetic resin Is also known (see, for example, Patent Document 2).

  Further, in one housing of the connectors connected to each other, a connection convex portion that is fitted into a connection concave portion formed in the other housing, and an engaging claw that is provided on the outer peripheral portion of the connection convex portion are provided. The connection protrusion is fitted into the connection recess, and the engagement claw is engaged with the engagement portion disposed on the inner periphery of the connection recess so that the connectors are detachably locked. Has also been developed.

JP 2008-59761 A JP 2005-108510 A

  However, in the case of using the conventional single-pole coaxial connector as described above, there is a problem that attachment to the board and wiring are required for each connector, and the wiring becomes complicated and the connection work takes time and effort. Since they are arranged side by side, they occupy a certain space on the substrate, which is a factor that hinders downsizing of electronic devices.

  In addition, from the viewpoint of board design, there is a request for multi-stage arrangement in which a plurality of conductors are arranged in the vertical direction with respect to the mounting board, and the problem that the conventional single-pole coaxial connector cannot be used for that request. was there.

  On the other hand, when the interface is multipolar, the housing may be color-coded for each housing, thereby visually improving work efficiency. In the integrated multipolar connector that integrally molds the housing as described above, such a housing There was a problem that it was not possible to correspond to each color coding.

  In addition, the shape of the connecting convex part that protrudes integrally from the front part of the housing and fits into the connecting concave part of the mating housing has different specifications depending on the housing shape of the mating connector, so the housing as described above is molded integrally In the integrated multi-pole connector, the specifications of one engaging claw and other shapes of the connecting projections differ from those of the previous connecting projections according to the housing shape of the mating connector. However, there is a problem that it is not suitable for the production of various small lots.

  Therefore, in view of such a conventional problem, the present invention can reduce the space of the interface part while accommodating multipolarization of the interface, and dispose a plurality of conductive body connecting portions in the vertical direction with respect to the mounting board. The purpose of the present invention is to provide a multipolar connector that can be adapted to the multistage arrangement.

  The feature of the invention according to claim 1 for solving the conventional problems as described above is that a plurality of conducting bodies each connected to a mating conducting body and a conducting body connecting portion are arranged on the front side. A multipolar connector including a housing made of an insulating resin that holds each conductive member, wherein one or a plurality of the conductive members are held in each divided housing having a shape obtained by dividing the housing into a plurality of parts. A key fitting portion is provided that includes a plurality of divided connectors, and a connection key is fitted into one or both joining end surface portions of the adjacent divided housings, and the connection key is fitted into the key fitting portion. By interposing between the joining end surface portions, the two divided housings are joined, and the adjacent divided connectors are connected to each other.

  According to a second aspect of the present invention, in addition to the structure of the first aspect, the connection key is formed on a joint end surface of one split connector to be joined to each other and formed on a joint end surface portion of the other split connector. The key is fitted into the key fitting portion.

  According to a third aspect of the present invention, in addition to the structure of the first or second aspect, the connection key includes a convex key body extending in the front-rear direction protruding from the joint end surface, and an end portion of the key main body. And the key engagement portion is formed in a concave groove shape having an engagement convex portion projecting inwardly on the joint surface side opening edge, The key engaging portion and the engaging convex portion are engaged with each other so that the two divided housings are joined.

  According to a fourth aspect of the present invention, in addition to the configuration of the first, second, or third aspect, each of the conductive members includes a long pin-shaped central conductor made of a conductive metal facing in the front-rear direction, and the central conductor. Insulator made of insulating resin that covers the outer periphery of the insulator, and an outer conductor made of conductive metal that covers the outer periphery of the insulator.

  According to a fifth aspect of the present invention, in addition to the structure of the first to third or fourth aspects, the multi-stage structure is provided in which the divided connectors are connected in the vertical direction. And a board connection terminal portion extending downward from the rear end portion of the conductive body portion and projecting from the lower end of each divided housing, and the conductive body portion for each divided connector. And the board connecting terminal portion of the upper divided connector is projected from the lower surface of the lower divided housing through the terminal insertion portion formed in the lower divided housing, and the lower divided portion is divided. The board connecting terminal portions protrude from the lower surface of the housing at intervals in the front-rear direction.

  The feature of the invention described in claim 6 is that, in addition to the configuration of claim 5, an elongated pin-shaped center conductor made of a conductive metal facing the front-rear direction on the conductor of the uppermost split connector, and the center conductor An insulating resin insulator covering the outer periphery and a conductive metal outer conductor covering the outer periphery of the insulator, a shield cover covering the outer side of the housing, and a shape rising inward to the shield cover The shield connection piece is inserted into the uppermost divided housing and brought into contact with the outer conductor.

  The feature of the invention described in claim 7 is that, in addition to the configuration of claim 1 to 5 or 6, each of the divided housings is provided concentrically on the outer side of each of the conductor connecting portions protruding from the front surface thereof. In addition, a cylindrical connection convex portion that fits into a connection concave portion that is opened in the front surface portion of the counterpart housing made of an insulating resin is integrally provided, and the conductive body is formed by fitting the connection convex portion into the connection concave portion. This is because it is connected to the counterpart conductor.

  According to an eighth aspect of the present invention, in addition to the configuration of the seventh aspect, the divided housing is provided with a convex guide key and / or the convex key continuous in the front-rear direction provided on the outer periphery of the connecting convex portion. An engaging claw that protrudes from the outer periphery of the connecting convex portion and engages with an engaging body formed on the inner peripheral portion of the connecting concave portion is provided.

  The feature of the ninth aspect of the invention is that, in addition to the configuration of the first to seventh or eighth aspects, the respective divided housings have different colors.

  As described above, the multipolar connector according to the present invention has a plurality of conductors each connected to a counterpart conductor and a conductor connecting portion arranged on the front side to hold each conductor. A multipolar connector including a housing made of insulating resin, and including a plurality of split connectors in which one or a plurality of the conductive members are held in each of the split housings divided into a plurality of the housings, A key fitting portion into which a connection key is fitted is formed on one or both joining end surface portions of the divided housings adjacent to each other, the connection key is fitted into the key fitting portion, and the connection key is straddled between the joining end surface portions. By interposing them, the two divided housings are joined together, and the adjacent divided connectors are connected to each other. Suitably can accommodate color and specification changes, and, by interposed connecting key between the divided connector, it is possible to secure high strength for the operation such as wrenching.

  Further, in the present invention, the connection key protrudes from the joint end surface of one split connector to be joined to each other, and is fitted into a key fitting portion formed on the joint end surface portion of the other split connector. As a result, the divided connectors can be assembled easily and efficiently.

  Furthermore, in the present invention, the connection key includes a protruding key body protruding in the front-rear direction protruding from the joint end surface, and a key engaging portion projecting outwardly disposed at an end of the key body. The key fitting portion is formed in a concave groove shape having an engagement convex portion projecting inwardly at the joint surface side opening edge portion, and the key engagement portion and the engagement convex portion are engaged with each other. As a result of the joining between the two divided housings, it is possible to join the divided housings with high accuracy and to obtain a high strength against bending.

  Further, in the present invention, each of the conductive bodies covers an elongated pin-shaped center conductor made of conductive metal facing in the front-rear direction, an insulator made of insulating resin that covers the outer periphery of the center conductor, and an outer periphery of the insulator. By providing the outer conductor made of conductive metal, a multipolar coaxial connector can be obtained.

  Furthermore, in the present invention, the space occupied on the mounting board can be reduced by providing a multi-stage structure in which the divided connectors are connected in the vertical direction.

  In addition, in the present invention, each of the conducting bodies extends downward from the rear end portion of the conducting body main body portion and the rod-like conducting body main body portion in the front-rear direction, and protrudes from the lower end of each divided housing. A board connecting terminal portion, and the length of the conductive body main body portion is different for each of the divided connectors, and the board connecting terminal portion of the upper divided connector is passed through a terminal insertion portion formed in the lower divided housing. The front end part protrudes from the lower surface of the lowermost divided housing, and the board connection terminal portions protrude from the lower surface of the lowermost divided housing at intervals in the front-rear direction, thereby reducing the occupied space on the mounting board. In addition, the entire connector can be reduced in size.

  Furthermore, in the present invention, an elongated pin-shaped center conductor made of a conductive metal directed in the front-rear direction to the conductor of the uppermost divided connector, an insulator made of insulating resin covering the outer periphery of the center conductor, and the insulator A conductive metal outer conductor covering the outer periphery of the housing, and a shield cover covering the outer side of the housing, the shield cover having a shield connection piece raised inward, the shield connection piece By inserting into the uppermost split housing and contacting the outer conductor, it is possible to improve the high frequency characteristics of the coaxial conductor of the split connector arranged at the uppermost stage.

  Further, in the present invention, each of the divided housings is concentrically projected on the outside of each of the conductor connecting portions protruding from the front surface thereof, and is connected to the front surface of the mating housing made of insulating resin. A cylindrical connecting convex part that fits into the connecting concave part, and the connecting convex part is fitted into the connecting concave part so that the conductive body is connected to the counterpart conductive body. It can be suitably protected and can respond to vibrations and severe environmental changes.

  Furthermore, in the present invention, the divided housing can be prevented from being erroneously connected by being provided with a guide key having a ridge shape continuous in the front-rear direction protruding from the outer periphery of the connecting projection. By providing an engaging claw that protrudes from the outer periphery of the convex portion and engages with an engaging body formed on the inner peripheral portion of the connecting concave portion, the connectors can be firmly locked. Furthermore, the specifications such as the shape and position of the guide key and / or the engaging claw can be changed for each divided connector, and a variety of small lot production can be handled by combining the divided connectors.

  Further, in the present invention, the color of each divided housing is different, so that the connection work between the connectors or the multipolar connector-to-cable can be made more efficient and erroneous connection can be prevented.

1 is a perspective view showing an example of a multipolar coaxial connector according to the present invention. It is the perspective view seen from the back side same as the above. It is a longitudinal cross-sectional view same as the above. It is the sectional view on the AA line in FIG. It is an exploded perspective view same as the above. It is a front view which shows the lower division | segmentation connector in FIG. It is a side view same as the above. It is a top view same as the above. It is a rear view same as the above. It is a longitudinal cross-sectional view same as the above. It is a front view which shows the upper division | segmentation connector in FIG. It is a side view same as the above. It is a top view same as the above. It is a rear view same as the above. It is a longitudinal cross-sectional view same as the above.

  Next, an embodiment of the multipolar connector according to the present invention will be described based on the embodiment shown in FIGS.

  In this embodiment, a two-pole coaxial connector having two upper and lower stages is described as an example, and reference numeral 1 in the figure is a multi-pole connector.

  In the present embodiment, the vertical direction is referred to as the vertical direction with respect to the surface of the substrate (hereinafter referred to as the mounting substrate) on which the multipolar connector 1 is mounted, and the substrate side is described below, and is parallel to the mounting substrate surface. The connecting direction between the connector 1 and the mating connector is referred to as the front-rear direction, and the mating side is described as the front.

  As shown in FIGS. 1 to 5, this multipolar connector 1 is connected to a plurality of conductors 2 and 3 that are connected to each other and a counterpart conductor such as a coaxial conductor of a coaxial cable or a coaxial connector. A multipolar coaxial connector having a body connecting portion disposed on the front side and a housing 4 made of an insulating resin holding the conductors 2 and 3, each of the divided housings 5 having a shape obtained by dividing the housing 4. A two-pole coaxial connector 1 is formed by connecting divided connectors 7 and 8 each having conductors 2 and 3 to 6 in a two-stage arrangement.

  The multipolar connector 1 includes a shield cover 9 made of a conductive metal plate, and the shield cover 9 is incorporated so as to cover the outer surface portion of the housing 4.

  As shown in FIGS. 6 to 10, the lower split connector 7 includes a lower split housing 5 made of an insulating resin and a lower conductive body 2 held by the lower split housing 5 to form a single-pole coaxial connector. Yes.

  The lower divided housing 5 is integrally formed of an insulating synthetic resin and includes a rectangular parallelepiped lower housing main body portion 10 and a cylindrical connecting convex portion 11 protruding from the front surface portion of the lower housing main body portion 10. .

  The lower housing body 10 includes a conducting body insertion hole 12 penetrating in the front-rear direction and a groove-like terminal insertion portion 13 communicating with the rear portion of the conducting body insertion hole 12 and opened to the lower surface side. The lower conductive body 2 is incorporated in the lower housing main body 10 by being fitted into the body insertion hole 12 from the rear of the lower housing main body 10.

  The lower housing main body 10 is formed with a recessed groove-like terminal accommodating portion 14 that is open to the rear end side and upper and lower ends of the lower housing main body 10 in the vertical direction behind the conducting body insertion hole 12. Has been.

  Furthermore, a key fitting portion 16 into which a connection key 15 to be described later is fitted is formed on the upper surface portion of the lower housing main body portion 10, that is, the joint end surface portion with the upper divided housing 6.

  The key fitting portion 16 is formed in a concave groove shape facing in the front-rear direction with the upper surface (joint end face) side and the rear open, and inwardly on the joint end face side opening edge of the left and right inner faces facing each other. A pair of projecting engagement protrusions 17, 17 projecting in a projecting manner are integrally formed to form an inverted T-shaped hole in cross-section.

  The connecting convex portion 11 is formed in a cylindrical shape integrally projecting from the front surface portion of the lower housing main body portion 10, and is electrically connected to the tip of the lower conductive body 2 protruding from the front surface of the lower housing main body portion 10 through the conductive member insertion hole 12. The conductive body 2 is disposed in the coupling recess by being concentrically disposed outside the body connection portion and fitting the coupling convex portion 11 into a coupling concave portion opened in the front portion of the counterpart housing (not shown). It is designed to be connected to the other conductor.

  In addition, the connecting convex portion 11 includes protruding guide keys 18 and 18 that are integrally projected on the outer periphery and continuous in the front-rear direction, and are projected on the outer periphery and formed on the inner peripheral portion of the connecting recess. And an engaging claw 19 that engages with each other to prevent erroneous connection between the multipolar connector 1 and the mating connector and to firmly lock the multipolar connector 1 and the mating connector. Can be done.

  The lower conductive body 2 is an elongated pin-shaped center conductor 20 made of conductive metal facing in the front-rear direction, an insulator 21 made of insulating resin covering the outer periphery of the center conductor 20, and made of conductive metal covering the outer periphery of the insulator 21. The outer conductor 22 and the central conductor 20, the insulator 21, and the outer conductor 22 form a conductive body main body 23 that faces in the front-rear direction.

  The conductor body 23 is formed with a concave hole-like concave portion 24 opened in the front surface at the front end portion of the insulator 21, and the distal end portion of the central conductor 20 projects in the center of the concave portion 24, The conductive parts such as coaxial connectors are fitted and electrically connected to each other.

  Further, the lower conductor 2 includes a board connection terminal portion 25 that extends downward from the rear end portion of the conductor main body portion 23 and protrudes from the lower end of the lower divided housing 5.

  The board connection terminal portion 25 has a shape made of a conductive metal central terminal 26 extending vertically downward from the rear end of the central conductor 20 and a shape extending vertically downward from the rear end of the insulator 21. A terminal insulator 27 made of an insulating resin that covers the outside of the terminal 26 and a rectangular tube that extends vertically downward from the rear end of the outer conductor 22, and has an outer terminal 28 that covers the outside of the terminal insulator 27. The outer terminal protruding pieces 28a and 28a that are integrally protruded from the lower end of the center terminal 26 and the lower edge of the outer terminal 28 are respectively inserted into through holes formed on the mounting board. , Soldered.

  The upper split connector 8 includes an upper split housing 6 made of an insulating resin and an upper conductive body 3 held by the upper split housing 6 to form a single-pole coaxial connector.

  The upper divided housing 6 is integrally formed of an insulating synthetic resin having a color different from that of the lower divided housing 5, and is a rectangular parallelepiped upper housing main body 30 and a cylindrical connection projecting from the front surface of the upper housing main body 30. Convex part 11 is provided.

  The upper housing main body 30 is formed in a rectangular parallelepiped shape whose length and width in the front-rear direction are equal to those of the lower housing main body 10, and when the upper and lower housing main bodies 10 and 30 are joined in two steps, the front and rear end surfaces and the left and right The end faces are continuous with each other.

  The upper housing body 30 includes a conductor insertion hole 31 penetrating in the front-rear direction, and a groove-like terminal insertion part 32 communicating with the rear part of the conductor insertion hole 31 and opened to the lower surface side, The upper conductive body 3 is incorporated in the upper housing main body 30 by fitting into the conductive body insertion hole 31 from the rear of the upper housing main body 30.

  In addition, a slit hole-like insertion hole 33 communicating with the conductive body insertion hole 31 is formed at the upper front end portion of the upper housing main body 30.

  Further, a connecting key 15 that is fitted into the key fitting portion 16 of the lower divided housing 5 is integrally projected on the lower surface portion of the upper housing main body portion 30, that is, on the joint end surface with the lower divided housing 5.

  The connection key 15 includes a key body 34 having a protruding strip shape projecting from the joint end surface (lower surface) and extending in the front-rear direction, and a pair of key engaging portions 35, 35 projecting integrally on the lower end side surface of the key body 34. In addition, the key body 34 and the key engaging portions 35, 35 form an inverted T shape in front view aligned with the key fitting portion 16.

  Therefore, the upper and lower divided housings 5 and 6 are slid in the front-rear direction, and the connecting key 15 is fitted into the key fitting portion 16 so that the outer surface of the connecting key 15 contacts the inner surface of the key fitting portion 16. The upper and lower divided housings 5 and 6 are joined in a state where relative movement in the front and rear and right and left directions is restricted.

  That is, the key body 34 is sandwiched between the engaging projections 17 and 17, and the key engagement portions 35 and 35 are engaged with the engagement projections 17 and 17. Engaging projections 17 and 17 are sandwiched between the lower surface of the housing body 30 and the upper and lower divided housings 5 and 6 are firmly joined.

  In addition, tapered portions 34 a and 35 a that are inclined inwardly toward the front are formed at the front end edges of the key body 34 and the key engaging portions 35 and 35, respectively. It can be easily press-fitted.

  Alternatively, the key body 34 and the key engaging portions 35, 35 may be formed in a wedge shape that increases in thickness as they go rearward, and the key fitting portion 16 may be formed in a wedge hole shape aligned therewith.

  Similar to the lower divided housing 5, the connecting convex portion 11 is formed in a cylindrical shape integrally projecting from the front surface portion of the upper housing main body portion 30, and protrudes from the front surface of the upper housing main body portion 30 through the conductor insertion hole 31. The upper conductive member 3 is arranged concentrically outside the conductive member connecting portion, and the connecting convex portion 11 is fitted into a connecting concave portion opened in the front portion of the mating housing (not shown), so that the upper conductive member The body 3 is connected to a counterpart conductive body disposed in the coupling recess.

  In addition, the connecting convex portion 11 is provided with protruding guide guides 18, 18 that are formed integrally on the outer periphery in the front-rear direction, and a protrusion that is provided on the outer periphery and formed on the inner peripheral portion of the connecting recess. An engaging claw 19 that engages with the combined body is provided. The guide keys 18 and 18 and the engaging claws 19 are arranged at positions that are vertically symmetrical with those of the lower divided housing 5.

  The upper conductor 3 is made of an electrically conductive metal elongated pin-shaped center conductor 40, an insulator 41 made of insulating resin covering the outer periphery of the center conductor 40, and an electrically conductive metal covering the outer periphery of the insulator 41. The outer conductor 42 is provided, and the central conductor 40, the insulator 41, and the outer conductor 42 form a conductive body main body 43 that faces in the front-rear direction.

  The conductive body main body 43 is formed with a concave hole-shaped concave portion 44 opened in the front surface at the front end portion of the insulator 41, and the distal end portion of the central conductor 40 projects in the center of the concave portion 44, The conductive parts such as coaxial connectors are fitted and electrically connected to each other.

  The conductive body main body 43 of the upper conductive body 3 is formed longer than the conductive body main body 23 of the lower conductive body 2, and when the conductive bodies 2 and 3 are incorporated in the divided housings 5 and 6, respectively, The rear end portion of the conductive body main body 43 of the body 3 is positioned behind the rear end of the conductive body main body 23 of the lower conductive body 2.

  Further, the upper conductive body 3 includes a board connection terminal portion 45 that extends downward from the rear end portion of the conductive body main body 43 and protrudes from the lower end of the upper divided housing 6.

  The board connection terminal portion 45 has a shape made of a conductive metal central terminal 46 extending vertically downward from the rear end of the center conductor 40 and a shape extending vertically downward from the rear end of the insulator 41, A terminal insulator 47 made of an insulating resin that covers the outside of the terminal 46 and a rectangular tube that extends vertically downward from the rear end of the outer conductor 42, and has an outer terminal 48 that covers the outside of the terminal insulator 47. Outer terminal projecting pieces 48a, 48a integrally projecting from the lower end of the center terminal 46 and the lower edge of the outer terminal 48 are inserted into through holes formed on the mounting board, respectively, projecting from the upper end of the terminal insulator 47. , Soldered.

  The board connection terminal portion 45 of the upper conductor 3 is formed longer than the board connection terminal portion 25 of the lower conductor 2 by the vertical thickness of the lower housing main body 10, and the extended portion thereof is divided into the upper and lower divided connectors 7, 8. Are joined in the terminal accommodating part 14 at the rear part of the lower divided housing 5, and the lower end portion of the lower divided housing 5 protrudes from the lower surface of the lowermost divided housing 5 through the terminal accommodating part 14. The board connection terminal portions 25 and 45 of the upper and lower conductors 2 and 3 protrude from the lower surface of the upper and lower conductive bodies 2 and 3 in a parallel arrangement with an interval in the front-rear direction.

  The shield cover 9 is formed into a U-shape when viewed from the front by bending a conductive metal plate. The shield cover 9 is bent vertically downward from both side edges of the top plate 50 and a flat plate 50 covering the upper surface of the housing 4. Side plates 51, 51 having different shapes.

  Both side plates 51, 51 are formed so as to cover the housing 4 across the side surfaces of the upper and lower housing main body portions 10, 30, and include board connection pieces 52, 52 integrally projecting downward from the lower end edge. The board connection pieces 52 and 52 are inserted into through holes formed in the mounting board and soldered to fix the housing 4 to the mounting board and to be connected to the ground.

  Further, the side plates 51, 51 are formed with engagement holes 54 that engage with the locking projections 53 protruding from the side surfaces of the upper and lower divided housings 5, 6.

  Further, the shield cover 9 is provided with a shield connection piece 55 having a shape rising inward from the front end edge of the top plate 50, and the shield connection piece 55 is inserted from the upper surface of the upper divided housing 6 into the inside through the insertion hole 33. The outer conductor 42 is inserted and brought into contact with the outer periphery.

  The shield connection piece 55 is formed in a bifurcated fork shape having a concave connection recess 56 at the lower end, and the upper conductor 3 and the shield cover 9 are connected to each other by fitting the outer periphery of the outer conductor 42 inside the connection recess 56. Thus, the outer conductor 42 of the upper conductor 3 is grounded via the shield cover 9.

  The assembly of the multipolar connector 1 configured in this way is performed by sliding the upper divided housing 6 from the rear with respect to the lower divided housing 5 in a state where the joining end faces are abutted with each other.

  And by the said slide movement, the connection key 15 of the upper division | segmentation housing 6 fits into the key fitting part 16 of the lower division | segmentation housing 5 from back, and the connection key 15 is interposed ranging between the joining end surfaces of the upper and lower division housings 5. Thus, the upper and lower split housings 5 and 6 are joined, and the upper and lower split connectors 7 and 8 are connected.

  Then, the shield cover 9 is put on the housing 4 from above, and the shield connecting piece 55 is inserted into the upper housing main body 30 and the shield connecting piece 55 is connected to the outer conductor 42 of the upper conductive body 3. Complete.

  The thus configured multipolar connector 1 has the connecting key 15 interposed between the joint end faces of the upper and lower split housings 5 and 6, so that the upper and lower split connectors 7 and 8 can be accurately connected to each other. They can be connected in a state in which sticking is prevented, thereby making it possible to suitably cope with color coding, specification changes, etc. while dealing with multipolarization.

  Further, since the connecting key 15 is interposed between the divided connectors, the upper and lower divided connectors 7 and 8 are connected to the upper and lower divided connectors 7 and 8 against the forces in the opposite directions acting on the upper and lower divided connectors 7 and 8 such as a twisting operation. Since it is possible to counteract each other by using the reaction force 15, it is possible to secure a high strength against a twisting operation or the like.

  Further, since the connection key 15 is interposed as described above, high strength against bending is provided, so that it is possible to arrange the upper and lower stages, and accordingly, the space occupied on the mounting board can be reduced.

  Furthermore, the high frequency characteristics of the upper divided connector 8 can be improved by inserting the shield connection piece 55 into the upper surface of the upper divided housing 6 and bringing it into contact with the outer conductor 42 of the upper conductive member 3.

  That is, since the upper conductor 3 is longer than the lower conductor 2, that is, the conductor body 43 and the board connection terminal 45 are longer, unnecessary electric field leakage may occur in transmission of a high-frequency signal. Therefore, the high frequency characteristics are improved by connecting the shield cover 9, that is, the ground, in the vicinity of the conductor connecting portion of the upper conductor 3 via the shield connecting piece 55.

  In the above-described embodiment, a two-pole coaxial connector in which single-pole coaxial connectors are arranged in two upper and lower stages has been described as an example. However, the embodiment of the present invention is not limited to this, and each division formed by a single-pole coaxial connector is used. A multi-pole multi-stage, in which multi-pole multi-stage connectors, each of which has a multi-stage arrangement of three or more stages, and in which a multi-pole type split connector formed by holding a plurality of conductors in a parallel arrangement with horizontal spacing in each divided housing It may be an arrangement.

  Moreover, the structure which connects each division | segmentation connector to a horizontal direction, ie, a mounting board, and parallel arrangement | positioning may be sufficient.

  Furthermore, in the above-described embodiment, the example in which the connecting key 15 is integrally protruded from the lower end surface of the upper divided housing 6 has been described. However, the key is fitted to both joint end surfaces of the adjacent divided housings 5 and 6. Part 16 is formed, and a connecting key 15 is interposed between both joint end faces by fitting a connecting key separate from both divided housings 5 and 6 into each key fitting part 16. May be.

  In the above-described embodiment, an example in which the key body 34 and the key engaging portions 35 and 35 are formed in an inverted T shape has been described. However, the aspect of the connection key 15 is not limited to this, and for example, A key engagement portion having a circular cross section may be integrally provided at the end of the ridge-shaped key body 34, and a pair of connecting keys 15 formed in an L shape in front view are arranged symmetrically with respect to each other. It may be provided.

  In the above-described embodiment, the multipolar coaxial connector has been described as an example, but the present invention can also be applied to other types of multipolar connectors such as an RCA terminal connection type or a mini-pin jack type.

DESCRIPTION OF SYMBOLS 1 Multipolar connector 2 Lower conducting body 3 Upper conducting body 4 Housing 5 Lower divided housing 6 Upper divided housing 7 Lower divided connector 8 Upper divided connector 9 Shield cover 10 Lower housing body 11 Connecting convex portion 12 Conductor insertion hole 13 Terminal Insertion part 14 Terminal accommodation part 15 Connection key 16 Key fitting part 17 Engagement protrusion 18 Guide key 19 Engagement claw 20 Center conductor 21 Insulator 22 Outer conductor 23 Conductor body part 24 Recess 25 Board connection terminal part 26 Center terminal 27 Terminal insulator 28 Outer terminal 30 Upper housing main body 31 Conductor insertion hole 32 Terminal insertion part 33 Insertion hole 34 Key body 35 Key engagement part 40 Center conductor 41 Insulator 42 Outer conductor 43 Conductor main body 44 Recess 45 Substrate Connection terminal 46 Central terminal 47 Terminal insulator 48 Outside Child 50 top plate 51 side plate 52 board connecting piece 53 locking portion 54 engaging hole 55 shield connecting piece 56 connected recess

Claims (9)

A multipolar connector comprising a plurality of conducting bodies each connected to a mating conducting body, and a housing made of an insulating resin that holds the conducting bodies by arranging a conducting body connecting portion on the front side. There,
A plurality of divided connectors each having one or a plurality of the conductive members held in each divided housing having a shape obtained by dividing the housing into a plurality of parts;
A key fitting portion into which a connection key is fitted is formed on one or both joining end surface portions of the divided housings adjacent to each other, the connection key is fitted into the key fitting portion, and the connection key is straddled between the joining end surface portions. By interposing them, the two divided housings are joined and the adjacent divided connectors are connected to each other.   2. The multi-connecting device according to claim 1, wherein the connection key protrudes from a joining end surface of one split connector to be joined to each other, and is fitted into a key fitting portion formed on a joining end surface portion of the other split connector. Polar connector. The connecting key includes a key body having a protruding strip shape protruding from the joint end surface and extending in the front-rear direction, and a key engaging portion projecting outwardly disposed at an end of the key body,
The key fitting portion is formed in a concave groove shape having an engagement convex portion projecting inwardly at the joint surface side opening edge portion, and the key engagement portion and the engagement convex portion are engaged with each other. The multipolar connector according to claim 1, wherein the two divided housings are joined to each other.   Each of the conductors includes an elongated pin-shaped center conductor made of conductive metal facing in the front-rear direction, an insulator made of insulating resin covering the outer periphery of the center conductor, and an outer side made of conductive metal covering the outer periphery of the insulator The multipolar connector according to claim 1, 2 or 3, further comprising a conductor. While having a multi-stage structure in which each of the divided connectors is connected in the vertical direction,
Each conductive body includes a rod-shaped conductive body main body portion facing in the front-rear direction, and a board connection terminal portion extending downward from the rear end portion of the conductive body main body portion and protruding from the lower end of each divided housing,
The length of the conductive body main body is different for each of the divided connectors, and the tip end portion of the board connecting terminal portion of the upper divided connector is passed through the terminal insertion portion formed in the lower divided housing. 5. The multipolar connector according to claim 1, wherein each of the board connection terminal portions protrudes from the lower surface and protrudes at an interval in the front-rear direction from the lower surface of the lowermost divided housing. An elongated pin-shaped center conductor made of conductive metal directed in the front-rear direction on the conductor of the uppermost split connector, an insulator made of insulating resin covering the outer periphery of the center conductor, and a conductive metal covering the outer periphery of the insulator An outer conductor made of
And a shield cover covering the outside of the housing,
6. The multipolar connector according to claim 5, wherein the shield cover is provided with a shield connection piece having an inwardly raised shape, and the shield connection piece is inserted into the uppermost divided housing and brought into contact with the outer conductor.   Each of the divided housings is formed in a cylindrical shape that is concentrically protruded outside the conductive body connecting portion protruding from the front surface thereof, and is fitted into a connecting recess that is opened in the front surface portion of the counterpart housing made of insulating resin. 7. The multipole according to claim 1, wherein a connecting convex portion is provided integrally, and the conductive member is connected to the counterpart conductive member by fitting the connecting convex portion into the connecting concave portion. Type connector.   The split housing is formed on the inner peripheral portion of the connecting concave portion and is provided on the outer periphery of the connecting convex portion and / or on the outer periphery of the connecting convex portion. The multipolar connector according to claim 7, further comprising an engaging claw that engages with the engaged body.   The multipolar connector according to claim 1, wherein a color of each divided housing is different.

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