JP6135147B2 - Coaxial connector - Google Patents

Description

  The present invention relates to an electrical connector to which a cable-shaped signal transmission medium such as a coaxial cable is connected.

  In general, a cable-shaped signal transmission medium such as a coaxial cable is widely used as a signal transmission medium in various electronic devices or electric devices such as mobile phones, but the cable-shaped signal transmission medium is connected to the printed wiring board side. A coaxial connector is used as an electrical connector for efficient connection. For example, in the coaxial connector described in Patent Document 1 below, the conductive contact connected to the inner conductor of the coaxial cable is bent, so that the inner conductor of the coaxial cable is sandwiched in the radial direction, whereby the contact of the conductive contact The portion is electrically connected to the inner conductor of the coaxial cable. According to the coaxial connector having such a configuration, the solder connection work for connecting the conductive contact and the coaxial cable is omitted, and as a result, the assembly workability is improved and the environment due to the disposal of the solder material or the like is improved. The problem of the viewpoint is solved, and there is also an advantage that the deviation of the characteristic impedance due to the difference in the amount of solder used is eliminated.

  However, in such a conventional coaxial connector, particularly in recent years, with the rapid miniaturization or low profile of an electrical connector, a connector main body (barrel) or a cable-shaped signal transmission medium from the connector main body. The rigidity of the cable protection arm or the like protruding along the side tends to decrease. For this reason, there is a risk that deformation or misalignment may occur or electrical characteristics such as impedance may change when inserting / removing from / to another mating electrical connector. It is also possible that the connectivity becomes unstable.

JP 2011-40262 A

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a coaxial connector that can stably obtain good electrical connectivity with a simple configuration even when it is reduced in size or height.

In order to achieve the above object, in the present invention, a connector main body portion to which a cable-shaped signal transmission medium is coupled, and a cable protection arm protruding from the connector main body portion along the cable-shaped signal transmission medium, be one that Yes, the connector body portion includes a lid-like member for covering the Quai one table-like signal transmission medium placed on the connector body so as to cover with the Quai one Bull protection arm, In the electrical connector, the fixing member is provided on the lid-like member so as to be bent along the outer wall surface of the cable protection arm. The cable protection arm is provided on the cable signal transmission medium side. integrally provided reinforcing portion bent toward the can, and the the fixed holding plate, the positioning unit which engages with the reinforcing portion of the Ke one Bull protection arm is made to the configuration provided There.

According to such a configuration, even if the rigidity of the connector main body (barrel) or the cable protection arm tends to decrease with the reduction in the height or size of the connector, the case Since the rigidity of the cable protection arm and the connector main body is enhanced by the reinforcing portion provided on the cable protection arm, the deformation when the insertion / removal with respect to another electrical connector to be mated is performed. Misalignment or change in electrical characteristics such as impedance is reduced.
Further, according to such a configuration, the reinforcing portion of the cable protection arm is more stably held by the positioning portion provided on the fixed holding plate. The stability and electrical characteristics at the time of insertion and removal with respect to the are further improved.

The positioning unit that put the present invention is formed, for example, to have a concave recess surface which fits in the bent portion of the reinforcing portion.

  In the present invention, it is preferable that the cable protection arm or the reinforcing portion is provided with an engaging convex portion that fits into the lid-like member.

  According to such a configuration, since the cable protection arm or the reinforcing portion is held by the lid-like member, stability and electrical characteristics at the time of insertion / removal with respect to another electrical connector to be mated are further improved. Is done.

  In the present invention, it is preferable that the reinforcing portion is provided as a cable guide that abuts on the cable-shaped signal transmission medium and regulates the position of the cable-shaped signal transmission medium.

  According to such a configuration, the cable-shaped signal transmission medium is stably held at a predetermined position by the position regulating function of the reinforcing portion provided as the cable guide in the cable protection arm. Even when an external force such as an operation is applied to the signal transmission medium, electrical connectivity is favorably maintained.

As described above, according to the present invention, the reinforcing portion bent toward the cable-shaped signal transmission medium side is integrally formed on the cable protection arm protruding from the connector main body to which the cable-shaped signal transmission medium is connected. And a positioning portion that engages with the reinforcing portion is provided on the fixed holding plate that is bent along the outer wall surface of the cable protection arm, thereby increasing the rigidity of the cable protection arm and the connector main body. When inserting / removing to / from other electrical connectors to be mated, regardless of the tendency of the connector body (barrel) or cable protection arm to decrease in rigidity due to the low profile or miniaturization of the connector Because it is configured to reduce deformation, misalignment, and changes in electrical characteristics such as impedance, good electrical performance can be achieved even when downsizing or low profile. Can be obtained stably connectivity with a simple structure, it is possible to inexpensively and greatly improve the reliability of the coaxial connector.

It is an external appearance perspective explanatory view showing the initial state (coaxial cable non-connection state) of the plug connector simple substance concerning a 1st embodiment of the present invention from the front side. FIG. 2 is an external perspective explanatory view showing an initial state of a single plug connector shown in FIG. 1 from the back side. It is side surface explanatory drawing of the plug connector single-piece | unit shown by FIG. FIG. 2 is an explanatory plan view of a single plug connector shown in FIG. 1. It is front explanatory drawing of the plug connector single-piece | unit shown by FIG. FIG. 6 is a cross sectional explanatory view taken along the line aa in FIG. 5. It is side surface explanatory drawing showing the inclined state which pushed and bent the lid-shaped member (shell cover part) in the plug connector shown by FIGS. It is a cross-sectional explanatory drawing along the bb line in FIG. It is side surface explanatory drawing showing the state after pushing and bending a fixed holding plate from the state shown by FIG. 7, and performing caulking fixation. FIG. 10 is a cross sectional explanatory view taken along the line cc in FIG. 9. It is side explanatory drawing showing the plug connector concerning the 2nd Embodiment of this invention. It is longitudinal cross-sectional explanatory drawing along the dd line in FIG. BRIEF DESCRIPTION OF THE DRAWINGS It is an external appearance perspective explanatory view showing the state which set the coaxial cable to the plug connector concerning the 1st Embodiment of this invention. FIG. 14 is an external perspective view illustrating a state in which the fixing and holding plate is caulked and fixed to complete the connection of the coaxial cable from the state illustrated in FIG. 13. It is an external appearance explanatory view showing the state where the plug connector concerning a 1st embodiment of the present invention was made to fit in the receptacle connector which is a fitting partner. It is longitudinal cross-sectional explanatory drawing of the plug connector in the coaxial cable connection state shown by FIG.

  Hereinafter, an embodiment in which the present invention is applied to a coaxial connector using a thin coaxial cable as a signal transmission medium will be described in detail with reference to the drawings.

[Overall structure of coaxial connector assembly]
The plug connector 10 according to the first embodiment of the present invention shown in FIG. 1 to FIG. 10 is configured such that a terminal portion of a thin coaxial cable SC as a cable-shaped signal transmission medium is connected. A mating electrical connector 20 (see FIGS. 15 and 16), such as a receptacle connector mounted on a predetermined printed wiring board, which is omitted, is configured to be fitted or removed by being inserted from above. ing. The fitting / removing operation of the plug connector 10 with respect to the mating electrical connector (receptacle connector or the like) is performed in a direction substantially orthogonal to the plane of the printed wiring board.

  More specifically, the connector main body portion of the plug connector 10 is formed to have a substantially cylindrical shape, and from the radially outer side with respect to the connector main body portion of the substantially cylindrical plug connector 10. The terminal portion of the thin coaxial cable SC is connected (see FIGS. 13 and 14), and the thin coaxial cable SC is connected so as to face the upper position of the mating electrical connector (receptacle connector or the like) 20. A plug connector 10 is disposed. Then, the entire plug connector 10 is lowered in a direction substantially orthogonal to the outer surface of the printed wiring board, so that the lower end portion of the plug connector 10 becomes lower than the upper end portion of the mating electrical connector 20. The fitting state is established (see FIGS. 15 and 16). In this way, when the plug connector 10 is inserted into the mating electrical connector from above, the terminal portion of the thin coaxial cable SC is placed on the printed wiring board via the plug connector 10 and the mating electrical connector. The wiring pattern is connected to the conductive path.

  In the following, the direction in which the plug connector 10 is inserted into the mating electrical connector (receptacle connector or the like) 20 is referred to as “downward”, and the removal direction opposite to that is referred to as “upward”. Further, in the plug connector 10 itself, an end edge portion to which a terminal portion of the thin coaxial cable SC is connected is referred to as a “front side edge portion”, and an opposite edge portion is referred to as a “back side edge”. The direction from the “back side edge portion” to the “front side edge portion” is “front direction”, and the opposite direction is “rear direction”. In addition, a direction orthogonal to both the “vertical direction” and the “front / rear direction” is defined as a “left / right direction”.

[About coaxial cable]
In particular, as shown in FIGS. 13 to 15, the end portion of the thin coaxial cable SC as the cable-shaped signal transmission medium is peeled off from the outer peripheral covering material, so that the cable inner conductor (signal line) SCa and The cable outer conductor (shield wire) SCb is exposed so as to be coaxial, and the cable inner conductor SCa arranged along the central axis of the thin coaxial cable SC is attached to the insulating housing 11. A signal circuit is configured by being connected to the conductive contact (signal conductive contact) 12. Further, the cable outer conductor SCb arranged so as to surround the outer peripheral side of the cable inner conductor SCa is connected to the shield shell 13, and the shield shell 13 functions as a ground conductive contact, whereby a ground circuit is configured. ing.

[Insulating housing]
Here, the insulating housing 11 described above has an insulating main body portion 11a formed in a substantially disk shape so as to constitute a connector main body portion, and a mating partner is provided at a lower portion of the insulating main body portion 11a. Insulating insertion portion 11b that is inserted into the inner side of the electrical connector (receptacle connector or the like) is integrated. Of these, the end portion of the thin coaxial cable SC described above is set on the substantially central portion of the insulating main body 11a (see FIG. 13), but the inner conductor of the thin coaxial cable SC (see FIG. 13). A conductive contact (signal conductive contact) 12 for receiving the signal line SCa is attached. Further, a shield shell 13 as a ground conductive contact is attached to the above-described insulating main body 11 a so as to surround the periphery of the signal conductive contact 12. Further, a cable support portion 11c (see FIG. 5) formed of a concave groove having a substantially semicircular shape when viewed from the front is formed at the front side edge portion of the insulating main body portion 11a, and the inside of the cable support portion 11c. In addition, the terminal portion of the above-described thin coaxial cable SC is placed and received.

  Thus, with respect to the insulating main body portion 11a of the insulating housing 11 constituting the connector main body portion, the insulating insertion portion 11b protruding downward from the insulating main body portion 11a is integrated so as to form a hollow cylindrical shape. Is formed. As described above, the insulating insertion portion 11b is configured to be inserted from the lower end side toward the inside of a mating electrical connector (such as a receptacle connector) that is a mating counterpart.

[About shield shell]
Further, the outer surface of the insulating housing 11 having the insulating main body portion 11a and the insulating insertion portion 11b described above is covered with a shield shell 13 made of a thin metal member. The shield shell 13 includes a shell main body portion 13a that covers the insulating main body portion 11a of the insulating housing 11 annularly from the radially outer side, and a shell cover portion 13b that serves as a lid-like member that covers the upper surface side of the insulating main body portion 11a. And a shell insertion portion 13c that covers the insulating insertion portion 11b in an annular shape from the radially outer side.

  At this time, in the initial state before the terminal portion of the thin coaxial cable SC is connected and fixed, the shell lid portion 13b of the shield shell 13 described above is in the upward open state as shown in FIGS. Has been made. That is, the shell lid portion 13b in the initial state is arranged to rise substantially vertically upward at the back side edge portion of the shell main body portion 13a via the connecting member 13d made of a thin plate member. Further, on the inner surface side of the shell lid portion 13b, an insulating pressing plate 11d rising upward from the insulating main body portion 11a of the insulating housing 11 is disposed along the inner surface of the shell lid portion 13b. In addition, the installation position and installation number of the connecting member 13d can be arbitrarily selected.

  And in the open state (initial state) of the shield shell 13 mentioned above, after the terminal part of the thin coaxial cable SC is mounted and set so that it may be received by the cable support part 11c like FIG. The shell lid portion 13b of the shield shell 13 is pushed down to a substantially horizontal state so that 13d is bent substantially perpendicularly downward together with the insulating pressing plate 11d. As a result, the entire insulating main body 11a of the insulating housing 11 is covered from the upper side by the shell lid 13b, and the shield shell 13 is closed (see FIG. 14).

  The shell lid portion 13b at this time is structured to be covered so as to cover the upper side portion and the outer peripheral side portion of the shell main body portion 13a when pushed down to a substantially horizontal state as described above. A protruding cover portion 13b1 is provided on the front side portion of the shell lid portion 13b pushed down to the horizontal state so as to cover the upper side of the thin coaxial cable SC. The protruding cover portion 13b1 provided on the shell lid portion 13b covers the thin coaxial cable SC and covers the pair of cable protection arms 13e and 13e protruding from the shell main body portion 13a from above. ing. The cable protection arms 13e and 13e at this time are configured to extend along the fine coaxial cable SC on both sides in the left-right direction across the fine coaxial cable SC. This will be described later.

  Further, as described above, fixed holding plates 13f and 13f made of a pair of tongue pieces are provided on the side edges of the protruding cover portion 13b1 provided so as to protrude to the front side of the shell lid portion 13b. It is provided to make. These fixed holding plates 13f and 13f are configured to be caulked and fixed by being bent so as to cover the thin coaxial cable SC and the cable protection arms 13e and 13e from the outer side. That is, the both side flange plates constituting the fixed holding plates 13f and 13f are located outward on both sides of the cable protection arms 13e and 13e when the shell lid portion 13b is pushed down to a substantially horizontal state. (Refer to FIG. 8) and bent toward the inner side of the connector along the outer wall surfaces on both sides of the cable protection arms 13e and 13e so as to be caulked from the state (see FIG. 10), thereby the shell body The shell lid portion 13b is fixed to the portion 13a.

  Further, the cable holding portions 13g and 13g made of relatively small flange plates are provided on both side edges of the protruding cover portion 13b1 provided on the shell lid portion 13b so as to be adjacent to the above-described fixed holding plates 13f and 13f. Is provided. The cable holding portions 13g and 13g are configured to be bent and fixed by caulking so as to cover the thin coaxial cable SC from the outer side. That is, the both side flange plates constituting the cable holding portions 13g and 13g are arranged so as to be located on both outer sides of the thin coaxial cable SC when the shell lid portion 13b is pushed down to a substantially horizontal state. In this state, the connector is bent inward so as to be caulked. As a result, the shell cover portion 13b is fixed to the thin coaxial cable SC, and the cable outer conductor SCb comes into contact with the cable holding portions 13g and 13g, whereby a ground circuit by the shield shell 13 is configured. Yes.

  On the other hand, as described above, the cable protection arms 13e, 13e are provided along the end portion of the thin coaxial cable SC from the front side edge portion of the shell main body portion 13a constituting a part of the connector main body portion. Yes. Each of these cable protection arms 13e is formed of an elongated plate-like member that is cantilevered from the shell main body 13a and integrally projects, and both sides sandwiching the terminal portion of the thin coaxial cable SC described above. In addition, a pair of ones are arranged substantially parallel to each other at a predetermined interval.

  Here, a reinforcing portion 13h that is bent toward the inner side of the connector, that is, toward the thin coaxial cable SC side, is provided at the protruding end portion of each cable protection arm 13e. Each of these reinforcing portions 13h has a shape that is bent so as to be reversed with a substantially U-shaped cross section with respect to the cable protection arm 13e. After projecting from the lower edge of the projecting end portion toward the inner side of the connector, that is, toward the opposing cable protection arm 13e, so as to bend in a curved shape, it is further bent into a substantially semicircular cross section. Projecting upward.

  In this manner, the reinforcing portion 13h provided at the protruding end portion of the cable protection arm 13e is in an arrangement relationship in contact with the thin coaxial cable SC from the outside. More specifically, the inner wall surface of the reinforcing portion 13h with respect to the outer exposed portion of the derivative interposed between the cable inner conductor (signal line) SCa and the cable outer conductor (shield wire) SCb. However, it is provided as a cable guide that abuts from the radially outer side and regulates the position of the thin coaxial cable SC.

  As described above, the lower end portion of the reinforcing portion 13h of the cable protection arm 13e has a curved shape that protrudes downward with a substantially semicircular cross section, but the lower end side curved shape portion of the reinforcing portion 13h. Correspondingly, a positioning portion 13i is formed on each of the fixed holding plates 13f and 13f described above. The positioning portion 13i provided on the fixed holding plate 13f has a concave recess surface corresponding to the lower end side curved shape portion of the reinforcing portion 13h. As described above, the fixed holding plate 13f is cabled. When the protective arm 13e is bent from the outside so as to cover the inner side of the connector (see FIG. 10), the positioning portion 13i provided on the fixed holding plate 13f contacts the lower curved portion of the reinforcing portion 13h. The cable protection arm 13e having a cantilever structure is held by being brought into contact with each other and thereby being held in a fitted state.

  Further, in the upper edge portion of each cable protection arm 13e in the present embodiment, an engaging convex portion 13j is provided so as to protrude upward at a position corresponding to the position directly above the reinforcing portion 13h. This engagement convex part 13j is provided so that it may extend over substantially the full length of the reinforcement part 13h. On the other hand, the shell lid portion 13b that covers the cable protection arm 13e from above is formed with a locking recess 13k that can accommodate the engagement projection 13j at a position corresponding to the engagement projection 13j described above. ing. When the shell lid portion 13b of the shield shell 13 is pushed down to a substantially horizontal state (see FIG. 8), the engagement convex portion 13j on the cable protection arm side becomes the locking concave portion 13k on the shell lid portion 13b side. It is adapted to be fitted on the inner side of the. As a modification of the locking recess 13k, a through hole formed by making the bottom surface portion of the locking recess 13k into a penetrating state can be employed.

  As described above, in the present embodiment, the rigidity of the connector main body portion and the cable protection arms 13e and 13e of the plug connector 10 tends to be lowered as the connector is lowered or miniaturized. In addition, since the rigidity of the cable protection arms 13e and 13e is enhanced by the reinforcing portions 13h and 13h provided in the cable protection arms 13e and 13e, the mating electrical connector such as a receptacle connector is provided. Deformation, displacement, and change in electrical characteristics such as impedance during insertion / removal of are reduced.

  In the present embodiment, the reinforcing portions 13h and 13h provided on the cable protection arms 13e and 13e are more stably held by the positioning portions 13i and 13i provided on the fixed holding plates 13f and 13f. Therefore, the stability and electrical characteristics at the time of insertion / extraction with respect to another electrical connector (receptacle connector or the like) 20 to be mated are further improved.

  Further, in the present embodiment, the thin coaxial cable SC is stably held at a predetermined position by the position regulating function of the reinforcing portions 13h and 13h provided as cable guides on the cable protection arms 13e and 13e. Thus, for example, even when an external force such as a turning operation is applied to the thin coaxial cable SC, the electrical connectivity is favorably maintained.

  Furthermore, in the present embodiment, the cable protection arms 13e and 13e are held by the shell lid portion 13b via the engaging projections 13j provided on the cable protection arms 13e and 13e. Further, the stability and electrical characteristics at the time of insertion / removal with respect to another electrical connector (receptacle connector or the like) 20 which is a mating partner are further improved.

  On the other hand, as described above, the shell insertion portion 13c constituting the lower portion of the shield shell 13 is configured to be fitted on the radially outer side portion of the mating connector (receptacle connector or the like) that is the mating counterpart. The connector connecting portion is configured together with the insulating insertion portion 11b of the insulating housing 11 inserted on the radially inner side of the mating connector. More specifically, the shell insertion portion 13c is formed to have a substantially cylindrical shape, and an annular recess protruding toward the radially inward side at the lower end portion on the insertion side of the shell insertion portion 13c. A connecting engagement portion 13m made of a groove is formed. Then, as described above, after the shell lid portion 13b is pushed down to a substantially horizontal state, the connection engagement portion 13m is connected to the connection locking portion (not shown) provided in the mating connector which is the mating counterpart. An elastic fitting relationship is established.

[Signal conductive contact]
In addition, the conductive contact (signal conductive contact) 12 employed in the present embodiment is attached to the insulating main body 11a of the insulating housing 11 by press-fitting or insert molding or the like. An elastic spring portion (not shown) having a cable holding portion 12a connected to the conductor (signal line) SCa and extending downward from the cable holding portion 12a is fitted. It is configured to elastically contact a conductive contact (not shown) provided on a mating mating connector (receptacle connector or the like).

  Of these, the cable holding portion 12a has a clip beam structure that is bent so as to form a substantially C shape or a substantially L shape in a side view, and by bending both side portions close to each other, The cable inner conductor (signal line) SCa of the coaxial cable SC is sandwiched from above and below in a clip shape. More specifically, the upper beam portion constituting the cable holding portion 12a is shown in, for example, FIGS. 1 and 13 in an initial state before connecting the terminal portions of the thin coaxial cable SC described above. It is made into the upward open state as it is. The upper beam portion in the initial state has a shape that rises substantially upward. Then, after the end portion of the thin coaxial cable SC is placed and set on the cable support portion 11c as shown in FIG. 13, the shell lid portion 13b of the shield shell 13 is pushed down to the substantially horizontal state together with the insulating pressing plate 11d. In this case (see FIGS. 7 and 8), the upper beam portion of the cable holding portion 12a is pushed down to a substantially horizontal state by the insulating pressing plate 11d, and the upper beam portion moves the cable inner conductor (signal line) SCa upward. It is made the structure pressed from.

  Here, the midway position in the extending direction of the upper beam portion constituting the cable holding portion 12a described above is formed in the upper electrode portion that presses the cable inner conductor (signal line) SCa from above. The upper electrode portion is formed in a bent shape protruding downward to sandwich the thin coaxial cable SC, and the bent portion is a protruding contact portion protruding in an edge shape toward the fine coaxial cable SC side. Has been made. As described above, the protruding contact portion is configured to be pressed from above with respect to the cable inner conductor (signal line) SCa of the thin coaxial cable SC when the shell lid portion 13b is pushed down to a substantially horizontal state. ing.

  Further, the lower beam portion of the cable holding portion 12a is disposed in a lower portion opposite to the above-described upper beam portion with the cable inner conductor SCa interposed therebetween. The lower beam portion was set so that the cable inner conductor (signal line) SCa of the thin coaxial cable SC was placed from above (see FIG. 13), and was set on the lower beam portion. A configuration in which the cable inner conductor (signal line) SCa is sandwiched between the two beam portions by bending and deforming the above-mentioned upper beam portion against the cable inner conductor (signal line) SCa from above. Has been made.

  The lower beam portion at this time is formed of a plate-like member that basically extends in a flat shape from the connecting portion with the upper beam portion, and the upper surface of the insulating main body portion 11a of the insulating housing 11 described above. It is fixed in the state where it was mounted on. A connection monitoring hole 12a1 is formed through the lower beam portion. The conductive contact provided in the mating connector is inserted into the insulating housing 11 so as to be substantially coaxial with the connection monitoring hole 12a1. The insertion hole is formed through to serve as a connection monitoring hole. The arrangement state of the cable inner conductor (signal line) SCa of the thin coaxial cable SC can be viewed from the lower side through the connection monitoring hole 12a1.

  In addition, a pair of elastic spring portions (not shown) extend downward from the cable holding portion 12a, and a mating connector (receptacle connector or the like) is fitted between the elastic spring portions. A pin-shaped signal conductive contact (refer to reference numeral 22 in FIG. 16) provided in FIG. 16 is inserted in a pressure contact state.

  On the other hand, in the second embodiment according to FIGS. 11 and 12 in which the same reference numerals are given to the same components as those in the first embodiment described above, the cable protection arms 13e and 13e are provided. Engagement projections 13n and 13n are provided on the upper edge portions of the reinforcement portions 13h and 13h so as to protrude upward, and the shell cover portion 13b is associated with the engagement projections 13n and 13n. The joint recesses 13p, 13p are formed to be recessed. When the shell lid portion 13b of the shield shell 13 is pushed down to a substantially horizontal state, the engagement convex portions 13n and 13n provided on the reinforcing portions 13h and 13h are engaged with the engagement concave portions 13p on the shell lid portion 13b side. It is adapted to be fitted in 13p.

  Thus, in this embodiment, since the reinforcement parts 13h and 13h contact | abutted to the thin wire coaxial cable SC side are directly hold | maintained at the shell cover part 13b via the engagement convex parts 13n and 13n, a reinforcement part The thin coaxial cable SC is stably supported via 13h and 13h.

  Further, in the present embodiment in which the engaging convex portion 13n is provided in the reinforcing portion 13h as described above, since the engaging convex portion 13n is not provided in the cable protection arm 13e itself, the first implementation described above. The total length of the cable protection arm 13e is enlarged as compared with the form, and the elasticity of the cable protection arm 13e is increased by that amount, for example, when an external force is applied such as when the connector is removed. In addition, the cable protection arm 13e can be elastically displaced smoothly to avoid the risk of damage or destruction.

  As mentioned above, although the invention made by the present inventor has been specifically described based on the embodiment, the present embodiment is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention. Needless to say.

  For example, in the above-described embodiment, the present invention is applied to a vertical fitting type electrical connector, but can be similarly applied to a horizontal fitting type electrical connector.

  Further, the present invention is not limited to the single-core thin-wire coaxial cable connector as in the above-described embodiment, and there are a plurality of coaxial cable connectors arranged in a multipolar shape, and a plurality of coaxial cables and insulated cables. The same applies to mixed-type electrical connectors and the like.

  As described above, the present embodiment can be widely applied to a wide variety of electrical connectors used in various electrical devices.

10 Plug connector (coaxial connector)
SC thin coaxial cable (cable signal transmission medium)
SCa Cable inner conductor (signal line)
SCb Cable outer conductor (shielded wire)
DESCRIPTION OF SYMBOLS 11 Insulation housing 11a Insulation main-body part 11b Insulation insertion part 11c Cable support part 11d Insulation press board 12 Conductive contact (signal conductive contact)
12a Cable clamping part 12a1 Connection monitoring hole 13 Shield shell (ground conductive contact)
13a Shell body part 13b Shell lid part 13b1 Projection cover part 13c Shell insertion part 13d Connecting member 13e Cable protection arm 13f Fixed holding plate 13g Cable holding part 13h Reinforcing part 13i Positioning part 13j Engaging convex part 13k Locking concave part 13m Connection Engagement part 13n Engagement convex part 13p Engagement concave part 20 Electric connector (receptacle connector, etc.) of mating counterpart
22 Signal conductive contact on the other side

Claims (4)

Be one that chromatic and connector body that the cable-like signal transmission medium is connected, and Ke one Bull protection arm projecting along the said cable-like signal transmission medium from the connector body portion,
The connector main body has a lid-like member that covers the cable signal transmission medium placed on the connector main body together with the cable protection arm,
In the electrical connector provided with a fixed holding plate bent along the outer wall surface of the cable protection arm on the lid-shaped member ,
The cable protection arm is integrally provided with a reinforcing portion bent toward the cable-shaped signal transmission medium side , and
The electrical connector according to claim 1, wherein a positioning portion that engages with a reinforcing portion of the cable protection arm is provided on the fixed holding plate . The positioning portion, the electrical connector according to claim 1, characterized in that it is formed to have a concave recess surface which fits in the bent portion of the reinforcing portion. The electrical connector according to claim 1 , wherein the cable protection arm or the reinforcing portion is provided with an engaging convex portion that fits into the lid-like member.   The electrical connector according to claim 1, wherein the reinforcing portion is provided as a cable guide that abuts the cable-shaped signal transmission medium and regulates the position of the cable-shaped signal transmission medium.

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