KR101675620B1 - Electrical connector - Google Patents

Abstract

The present invention provides a technique for forming a means for restricting the tip position of a center conductor to a regular position at the time of wiring of a coaxial cable on a terminal and maintaining the strength of the terminal at a predetermined value or more in an electrical connector for a coaxial cable do.
The terminal 300 has a plate-like contact portion 304 which contacts the central conductor of the coaxial cable on the upper surface thereof and a fitting portion 308 which elastically contacts the terminal of the mating connector at the time of fitting the mating connector Fitting portions 324a and 324b which are formed in the vicinity of the end portion 314 opposite to the coaxial cable of the contact portion 304 and press-fit into the groove of the terminal accommodating portion of the insulating seat, And a protrusion 316 for regulating the position of the leading end of the center conductor of the coaxial cable. The protruding portion 316 is formed to protrude from the lower side of the contact portion 304 and the width of the protruding portion 316 is narrowed from the coaxial cable side toward the end portion 314.

Description

ELECTRICAL CONNECTOR

Field of the Invention [0002] The present invention relates to an electrical connector, and more particularly to an L-type coaxial connector used for connecting a coaxial cable.

BACKGROUND ART [0002] In recent years, electronic devices such as mobile phones, notebook personal computers (PCs), and tablet PCs have been actively developed. In these electronic devices, miniaturization is requested to improve portability, and miniaturization is also required for electronic components mounted inside. The L-type coaxial connector is used for connecting a coaxial cable for connecting various electronic components such as an RF circuit and a central processing unit to an antenna in a notebook PC, a tablet PC, etc., which are conventionally used for cellular phones and recent communications In many cases, miniaturization is being demanded.

As an L-type coaxial connector intended for miniaturization, for example, there is a technique disclosed in Japanese Patent Application Laid-Open No. 2008-147094 (Patent Document 1). The L-type coaxial connector described in Patent Document 1 has a position regulating portion for defining a normal position of the center conductor so as to be able to be connected to the terminal without soldering in a state in which the center conductor is not shifted, To maintain the center conductor in the normal position.

Japanese Patent Application Laid-Open No. 2008-147094

For example, the height of the connector at the time of cable connection is required to be about 1 mm. However, it is difficult to simply miniaturize the connector and the cable in consideration of the processing precision, strength, It is necessary to achieve miniaturization by arranging parts efficiently. In addition, due to the miniaturization of the connector, various components constituting the connector are miniaturized, resulting in various problems. For example, the lightweight shortening of each component tends to weaken the strength of the connector. However, it is necessary to maintain the strength of the connector at the time of assembly or use at a certain level or more from the viewpoint of a request for high reliability of electronic equipment and parts. In addition, from the viewpoint of requests for high productivity of electronic devices and parts, it is necessary to reduce the number of parts, ease of processing of parts, ease of assembly, reduction in manufacturing cost, and further reduction in manufacturing cost .

On the other hand, when the coaxial cable is connected to the coaxial connector, it is necessary to maintain the central conductor of the coaxial cable at a regular position, as disclosed in Patent Document 1 above. At this time, it is necessary to prevent the leading end of the center conductor from passing excessively. There is a method of forming a restricting means for abutting against the distal end of the central conductor so as to stop the distal end of the central conductor so as not to go too far into the inside. As the regulating means, for example, there may be a case where a protrusion is formed on the connecting surface of the central conductor on the terminal. As a method of forming the projections, for example, there is a method in which protrusions are formed by protruding from the bottom side of the plate-shaped terminals from the inside in consideration of low profile and productivity. However, in the case of forming the protrusion by tapping out, there is a possibility that the strength around the portion where the terminal is protruded due to miniaturization of the terminal is likely to deteriorate. Particularly, in the case of a coaxial connector having a structure in which a terminal is press-fitted and fixed to an insulating seat at the time of assembling the connector, the strength deterioration around the press-in portion should be avoided.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide an electrical connector for a coaxial cable in which means for restricting the position of the center conductor to the normal position at the time of coaxial cable connection is formed on the terminal, To provide the technology that is available. These and other objects and novel features of the present invention will become apparent from the description of the present specification and the accompanying drawings.

Outline of representative examples of the invention disclosed in the present application will be briefly described as follows. That is, the electrical connector according to the present invention has the cylindrical portion opened in the fitting direction with the mating connector, supports the coaxial cable so that the central axis of the coaxial cable is substantially perpendicular to the fitting direction, An insulated seat of an insulative material accommodated in the tubular portion of the outer conductor and a terminal accommodated in the terminal accommodating portion of the insulated seat and electrically connected to the central conductor of the coaxial cable Terminal of a conductive material. The terminal includes a plate-like contact portion which is in contact with the central conductor of the coaxial cable on an upper surface thereof, a fitting portion which comes into elastic contact with the terminal of the mating connector at the time of fitting the mating connector, And a projection formed on an upper surface of the contact portion and regulating a position of a leading end of the central conductor of the coaxial cable. The protruding portion is formed to protrude from the bottom side of the contact portion from the inside, and the width of the protruding portion is wider than the end portion of the coaxial cable.

Effects obtained by representative ones of the inventions disclosed in the present application will be briefly described as follows.

(1) The electrical connector for a coaxial cable can be miniaturized and reduced in size.

(2) When the coaxial cable is connected, the position of the leading end of the center conductor can be regulated to the regular position.

(3) The strength around the press-in portion of the terminal is maintained at a predetermined level or higher.

1 is a view showing a state before assembly of an L-type coaxial connector.
2 is a view showing a configuration of an external conductor before assembly of the L-type coaxial connector.
Fig. 3 is a view showing a configuration of an insulating seat before assembling the L-type coaxial connector. Fig.
Fig. 4 is a view showing a configuration of a terminal before assembly of the L-type coaxial connector. Fig.
Fig. 5 is a view showing an L-shaped coaxial connector in which an insulating seat and a terminal are press-fitted and fitted. Fig.
6 is a view showing an L-type coaxial connector in a state in which a coaxial cable is disposed on an insulating seat and a terminal.
7 is a view showing an L-shaped coaxial connector in which the outer lid portion of the outer conductor is bent to bend and the inner lid portion of the insulating seat is bent while being pressed.
8 is a cross-sectional view of the L-type coaxial connector shown in Fig.
9 is a view showing an L-shaped coaxial connector in a state where the outer lid portion of the outer conductor and the inner lid portion of the insulating seat are completely closed and fixed.
10 is a cross-sectional view of the L-type coaxial connector shown in Fig.
Fig. 11 is a view showing an insulating seat in which terminals are inserted. Fig.

Hereinafter, one embodiment of the present invention will be described with reference to the drawings. In all the drawings for explaining the embodiments, the same members are denoted by the same reference numerals in principle and the repeated description thereof is omitted.

Fig. 1 is a view showing each member in a state before assembly of an L-type coaxial connector according to an embodiment of the present invention. Fig. Figs. 2 to 4 are diagrams showing details of each component. Fig. In the L-type coaxial connector according to the present embodiment, the extending direction of the coaxial cable (central axis) and the fitting direction of the mating connector are substantially perpendicular. The L-type coaxial connector includes an outer conductor 100 electrically connected to a shield line of a coaxial cable (see FIGS. 6 to 10), an insulating seat 200 accommodated in the outer conductor 100, And a terminal 300 electrically connected to the center conductor of the coaxial cable.

The outer conductor 100 is made by machining a metal plate made of a conductive material such as phosphor bronze to punch or bend it. As shown in Fig. 2, the outer conductor 100 is rounded so as to have a substantially cylindrical shape, and has a cylindrical portion 104 having a gap 106 at one point in the circumferential direction, Two holding arms 108 parallel to the mating connector insertion direction (up and down direction) to be extended and projected and a pair of holding arms 108 located on the opposite side from the gap 106 in the radial direction and extending from the top of the cylindrical portion 104, (112) and the like.

The tubular portion 104 is a portion for accommodating the body portion 204 of the insulating seat 200 in a concentric position and has a seat portion 116 on the inner surface for receiving the body portion 204 of the insulating seat 200. In addition, a plurality of grooves 120 are formed in the circumferential direction for imparting elasticity to the outside of the cylindrical portion 104 in the radial direction. 124b, 124b, 124c for press-fitting and inserting the insulating seat 200 are formed on both upper portions of the holding portion 108 and the upper portions of the holding arms 108 in the extending direction of the holding portion 108, 128a, 128b are formed. In the vicinity of the lower end of the outer peripheral surface of the tubular portion 104, there is formed an annular lock groove 122 that functions as a lock when fitting with the mating connector.

The outer lid portion 112 has a constricted bending portion 132 and a flat lid portion 136 that extends to the bending portion 132 and covers the cylindrical portion 104 when the bending portion is bent, A shielding wire caulking portion 156 for enclosing the shielding wire of the coaxial cable by surrounding and coiling the shielding wire and a sheath caulking portion 168 for caulking surrounding the outer sheath of the coaxial cable, . The outer lid portion 112 is bent at the bent portion 132, which is a connecting portion with the cylindrical portion 104 when connected to the coaxial cable, and covers the coaxial cable.

The flat lid portion 136 has side portions 140 bent downward at both ends when bent. When the bent portion 132 is bent, the upper surface 144 is formed on the inner side by embossing. The distance between the inner surfaces of the two side portions 140 is equal to or larger than the outer diameter of the cylindrical portion 104. [

The fixing portion 148 has side portions 152 bent downward at both ends when bent. The side portion 152 contacts the outer surface of the retention arm 108 and is formed so as to move back to the lower side of the retention arm 108. [

The shield line caulking portion 156 has a side portion 160 and surrounds the caulking and electrically connects the shield line of the coaxial cable after the bent portion 132 is bent. When the bent portion 132 is bent, a convex portion 164 is formed on the inner side by embossing so that the coaxial cable can not be easily detached from the connector even if the coaxial cable is pulled in the extending direction.

The sheath caulking portion 168 also has a side portion 172 and caulking surrounds the sheath of the coaxial cable after the bending portion 132 is bent. When the bent portion 132 is bent, a convex portion 176 is formed on the inner side by embossing so that the coaxial cable can not be easily detached from the connector even if the coaxial cable is pulled in the extending direction.

3 shows a detailed configuration of the insulating seat 200, wherein (a) is a perspective view and (b) is a plan view. The insulating seat 200 is made by molding an insulating material. As the insulating material, a heat-resistant and flexible material such as glass fiber, filler such as carbon fiber or mica is filled in a liquid crystal polymer (LCP) resin or the like is used. 3, the insulating seat 200 includes a substantially cylindrical main body portion 204, a shoulder portion 208 extending in the extending direction of the coaxial cable outside the radius from the upper position of the main body portion 204, And a inner lid portion 212 located on the opposite side of the shoulder portion 208 radially outward and projecting upwardly. A guide wall 248 is formed on both sides of the shoulder portion 208 of the insulated seat 200 such that it is guided when the inner lid portion 212 is bent.

The terminal accommodating portion 216 of the substantially quadrangular inner tubular surface receiving the fitting portion 308 of the tongue piece of the terminal 300 is vertically passed through the body portion 204 of the insulated seat 200 And a flange portion 220 is formed on an upper circumferential edge of the body portion 204. In the flange portion 220, projections 224a and 224b protruding radially outward are formed on both sides of the shoulder portion 208 in the extending and projecting direction. Projections 228a and 228b protruding outward are formed on both sides of the shoulder portion 208 in the direction perpendicular to the extending direction. By inserting the insulated seat 200 into the outer conductor 100, the protrusions 224a, 224b, 228a and 228b are connected to the rectangular conductor portion 100 formed in the cylindrical portion 104 and the holding arm 108 of the outer conductor 100 124a, 124b, and is mounted on the projections 128a, 128b.

The inner lid portion 212 can be bent at a portion connected to the body portion 204. [ The length of the inner lid portion 212 is such that the inner lid portion 212 has a tip end that is the same as the shoulder portion end face 252 of the shoulder portion 208 and the elongation direction in the state where the inner lid portion 212 is completely bent It is the length to be the position, or a little shorter.

The shoulder end face 252 of the shoulder portion 208 is positioned outside the cable extending direction of the cable 300 than the cable side end portion 302 of the terminal 300 (see Fig. 4). The inside of the main body portion 204 and the inside of the arm portion have a groove shape cut from the cable side so as to extend from the connecting position of the main body portion 204 to the inner lid portion 212 to the shoulder end face 252. And the terminal 300 is disposed in a part of the bottom of the seat portion 232 on the side of the terminal accommodating portion. The seat portion 232 also has a center conductor guide surface 236 which is located outside the cable side end portion 302 of the terminal 300 and on which the terminal 300 is not disposed on the upper surface. The seat portion 232 has a slant surface 240 that extends downward from the upper surface of the contact surface of the terminal toward the front end of the cable. The central conductor guide surface 236 has an upwardly convex ridge 244 and the end side of the ridge 244 forms part of the slope 240.

Fig. 4 shows a detailed configuration of the terminal 300. Fig. 4 (a) is a perspective view, and Fig. 4 (b) is a cross-sectional view taken along the line C-C in Fig. The terminal 300 is made by machining a metal plate made of a conductive material such as phosphor bronze or the like by punching or bending. In a typical case, a plurality of the same terminals are mounted on the carrier at regular intervals. For example, in a state where the cable side end portion 302 is connected to the carrier, the terminal is subjected to bending processing or the like. The terminal 300 is used for assembling the L type coaxial connector after detaching the cable side end portion 302 of the terminal 300 from the carrier. 4, the terminal 300 has a contact portion 304 which is in contact with the central conductor of the coaxial cable and is electrically connected, and a fitting portion 308 which is fitted to the terminal of the mating connector. The terminal 300 has press-fitting portions 324a, 324b, 322a, and 322b for fitting into the terminal protrusions 256a, 256b, 260a, and 260b of the insulating seat 200, respectively.

The contact portion 304 is a substantially planar shape extending in the extending and projecting direction of the coaxial cable, and on the upper surface contacting the central conductor of the coaxial cable, a plurality of concave- (Not shown). The center conductor of the coaxial cable is positioned in the vicinity of the inner lid-side end portion 314 on the opposite side of the extending direction of the substantially planar surface of the coaxial cable to define the protruding portion 316 are formed slightly forward from the concentric position in the front-rear direction. The protruding portion 316 has a substantially triangular planar shape with one side (first side) of the central conductor restricting surface 318 that restricts the distal end of the central conductor of the coaxial cable from deeply going deep inside, And a vertex opposite to the side is located in the vicinity of the inner lid side end 314. When the outer diameter of the distal end of the central conductor comes into contact with the groove-shaped sidewall of the main body, the projecting portion 316 formed with the above-mentioned side is formed to protrude from the lower side of the contact portion 304 . The projecting portion 316 has an inclination descending from the center conductor restricting surface 318 toward the inner lid side end portion 314 and is the lowest in the vicinity of the inner lid side end portion 314. The lowest point at the vertex opposite to the first side of the triangle is the same as the flat surface of the contact portion 304. The width of the protruding portion 316 is the widest in the planar shape of the center conductor restricting surface 318 and the narrowest in the vicinity of the inner lid side end 314.

For example, as a means for regulating the tip end position of the center conductor, when the rectangular projecting portion is formed by being protruded from the inside, the strength of the portions of the press-fitting portions 324a and 324b may be deteriorated. However, in the present embodiment, since the width and the height for protruding out in the vicinity of the press-in portions 324a and 324b, that is, in the vicinity of the inner lid-side end portion 314 are minimized, maintain. Therefore, the projecting portion 316 of the electrical connector according to the present embodiment has such a shape that the tip of the central conductor of the coaxial cable can be positioned and the strength of the terminal 300 can be maintained.

The protrusion 316 shown in Fig. 4 is substantially triangular, but it is not limited to this shape, and similar effects can be exhibited even if other similar shapes are used. For example, the protrusion 316 may have a trapezoidal shape. In this case, the protruding portion 316 becomes a trapezoid with the first side (central conductor restricting surface 318) on the coaxial cable side as the lower floor and the second side on the inner lid side end 314 as the upper floor. The center conductor restricting surface 318 for regulating the tip end position of the first-side center conductor is formed, and the vicinity of the second-side press-fitting portions 324a and 324b is formed. Further, the protrusion 316 may have an oval shape or a shape in which a part of an ellipse is cut out. In this case, a portion of the oval or elliptical portion is cut to form the center conductor restricting surface 318, and the width of the portion of the center conductor restricting surface 318 or the vicinity of the center of the oval or elliptic shape widest.

As shown in Fig. 4, the fitting portion 308 has two snowball pieces 320a and 320b extending downward from both ends of the contact portion 304. As shown in Fig. The wedge portions 320a and 320b are inclined so as to narrow each other as they descend downward, and the shortest part of the distance is smaller than the size of the center conductor of the terminal (mating terminal) of the mating connector. In addition, the tip ends of the lancing elements 320a and 320b are inclined so as to widen the distance between them so that the center conductor of the mating terminal can be guided to the center side. By the elastic force in the inward direction of the wedge pieces 320a and 320b generated when the fitting portions of the center conductors of the terminals of the mating connector are pushed by the two wollar pieces 320a and 320b, The fitting portion of the mating terminal is gripped. In this embodiment, the terminal 300 is a female terminal, but in the present invention, the terminal may be a male terminal. The number of snowball pieces is not limited to two, but may be three or more.

5 is a connector diagram of an embodiment of the present invention after the outer conductor 100, the insulating seat 200 and the terminal 300 are assembled. The connector is assembled as described below. The protrusions 224a, 224b, 228a, and 228b of the insulated seat 200 are inserted into the outer conductor 100 by inserting the main body portion 204 of the insulated seat 200 into the cylindrical portion 104 of the outer conductor 100, (124a, 124b) of the base plate (100), and is mounted on the flanges (128a, 128b). The press-fitting portions 322a, 322b, 324a, and 324b of the terminal 300 are press-fitted into the inserting portion 200 of the insulating seat 200 by pressing the fitting portion 308 of the terminal 300 into the terminal accommodating portion 216 of the insulating seat. 260b, 256a, and 256b, respectively. The lower surface of the contact portion 304 of the terminal 300 is fixed on the upper surface of the seat portion 232 of the insulating seat 200. [

6 is a diagram showing a state after the coaxial cable is arranged in the connector. After the terminal 300 is press-fitted and fixed, the coaxial cable is arranged in the connector. The coaxial cable is subjected to a three-step peeling process using a stripper or the like. The coaxial cable is exposed from the front end of the coaxial cable in the order of the center conductor C1, the dielectric C2, the shield line C3 and the casing C4. The end face of the dielectric of the coaxial cable is brought into contact with the shoulder end face 252 of the insulating seat 200 and the center conductor C1 of the coaxial cable is connected to the terminal 300 And the center conductor guide surface 236 of the seat portion 232 of the insulated seat 200. The contact portion 304 of the insulated seat 200 and the center conductor guide surface 236 of the insulated seat 200 are disposed on the same. The end of the center conductor C1 is in contact with the center conductor restricting surface 318 of the protrusion 316 so that the end face of the dielectric C2 contacts the end face of the shoulder portion 252, or because the center conductor C1 is warped, the assembling operator can easily find an assembly error.

Fig. 7 is a view showing a state in which the outer lid portion 112 is bent to the middle after the center conductor C1 of the coaxial cable is placed on the contact portion 304. Fig. When the outer lid portion 112 is bent, the outer lid portion 112 receives the pressing force from the inner surface (mainly the inner surface of the ridgeline 144) of the flat lid portion 136 in the outer lid portion 112, 112 are bent together with the inner lid portion 212. 8 is a cross-sectional view taken along the A-A cut plane in Fig. 8, the contact portion 304 of the terminal 300 and the seat portion 232 of the insulating seat 200 are formed below the portion C11 where the dielectric of the central conductor C1 of the coaxial cable is peeled off and exposed And a center conductor guide surface 236 of the center conductor. On the other hand, the dielectric substance C2, the shield line C3, and the sheath C4 of the coaxial cable are located outside the insulating extension 200 in the cable elongation direction.

When the outer lid portion 112 (particularly, the flat lid portion 136) of the outer conductor 100 is torn to cover the cylindrical portion 104, the bent portion is bent. At this time, a pressing force is applied to the outer surface of the inner lid portion 212 of the insulating seat 200 by the flat lid portion 136 of the outer conductor 100. The inner lid portion 212 receives the pressing force and supports the inner surface (i.e., the pressing surface) of the inner lid portion 212 and the terminal 300 to the upper surface of the contact portion 304 The center conductor C1 of the coaxial cable is sandwiched therebetween and pressed. Thereafter, the holding arm 108 is surrounded by the fixing portion 148 to fix the position of the outer lid portion 112 so that the outer lid portion 112 is not opened. The shield line C3 is caulked and surrounded by the shielded line caulking portion 156 to ensure the electrical connection between the shield line C3 and the outer conductor 100. [ In addition, the shell C4 is caulked and surrounded by the shell casing 168 to fix the coaxial cable so as not to come off the connector. As described above, the center conductor C1 is pressed between the center conductor C1 and the shield C4, and the shield C4 and the envelope C4 are caulked so as to be greatly deformed. However, the dielectric C2 exposed from the shield line is largely sandwiched The coaxial cable is not greatly deformed even when the coaxial cable is fixed to the connector. Therefore, the change in electrical characteristics such as the impedance of the cable at the time of connector connection is small.

Fig. 9 is a view of a connector and a coaxial cable after being fixed, and Fig. 10 is a cross-sectional view taken along the line B-B in Fig. The center conductor C1 is sandwiched between the inner face (pressing face) of the inner lid portion 212 and the upper face (support face) of the contact portion 304 of the terminal 300 and the terminal 300 and the center conductor C1 ). The concave and convex portions 312 on the upper surface of the contact portion 304 are engaged with the center conductor C1 so that the center conductor C1 is hardly dropped from the terminal 300 and the electrical connection of the center conductor is stably maintained. The center conductor C1 is held by the inner surface of the inner lid portion 212 and the clamping force of the protruding portion 244 of the insulating seat 200. [ The central conductor C1 is secured by electrical connection between the inner surface of the inner lid portion 212 and the upper surface of the contact portion 304 of the terminal 300, The center conductor C1 is not required to be fixed to the terminal by soldering. Further, when tension is applied to the coaxial cable in the coaxial cable elongation direction, tension is applied to a portion of the center conductor C1 between the inner lid portion 212 and the protruding portion 244, and the inner lid portion 212 Is a plane, the ridge 244 is formed as a smooth curved surface, and is not normally pointed, so that the center conductor is not easily broken. On the other hand, if the center conductor C1 is not pressed between the inner lid portion 212 and the raised portion 244, the portion of the center conductor between the inner lid portion and the cable side end portion of the contact portion of the terminal . In this case, the tip end edge of the contact portion on the cable side is often pointed, and the tension is concentrated in the vicinity of the portion of the center conductor which contacts the leading edge portion thereof, which is likely to cause disconnection. Further, when the cable side end portion of the contact portion is connected to the carrier before use of the terminal, a spike or the like may remain on the end portion of the contact portion, resulting in scratches on the center conductor.

8 and 10, when the coaxial cable is disposed so as to be located outside the insulating site 200, a space is formed below the portion C12 covered with the dielectric C2. At this time, since the outer lid portion 112 can push the dielectric substance C2 downward, the inner lid portion 212 can be made thinner than the dielectric substance C2 to reduce the thickness. Since the insulating seat 200 has the inclined surface 240 at the cable side end portion, the center conductor C1 is formed to have the shoulder portion side surface of the insulating seat C1, even though the center line of the portion C12 moves downward than the center line of the portion C11. And smoothly downward along the slope 240 without bending and curving at the slit 252, so that it is not easily broken. Even if the dielectric C2 is pressed by the outer lid portion 112 from the upper portion, since the dielectric portion C2 is not pressed by being caught by the seat portion 232, the electrical characteristic change such as the impedance of the cable little.

The distal end of the inner lid portion 212 in the elongation direction is aligned with the shoulder end face 252 in the stretching direction at the time of bending so that the center C2 of the insulated seat 200 and the shoulder end face 252, The space between the conductor C1 and the outer conductor 100 is blocked so that the center conductor C1 can be prevented from being short-circuited to the outer conductor 100. [

The portion C13 of the coaxial cable is covered by the shield line C3 and the portion C13 not covered by the shell is caulked by the shield line caulking portion 156 so that the shield line C3 is pushed into the dielectric C2. Therefore, in the present embodiment, the center position in the portion C13 is the same in the center and the height direction in the portion C12, but may be moved downward in the present invention.

In the present embodiment, a part of the outer skin C4 is crimped by the outer skin caulking portion 168 to be compressed and thinned. However, since the central conductor in the portion C14 covered with the outer skin has a constant thickness, In the present invention, the portion C14 may maintain the same height.

11 shows a state in which the terminal 300 is inserted into the insulated seat 200 so that the press-fit portions 322a, 322b, 324a and 324b of the terminal 300 are inserted into the terminal fittings 260a, 260b and 256a , And 256b, respectively. As shown in FIG. The inner lid portion 212 of the insulated seat 200 is provided with a pressing force from the flat lid portion 136 of the outer lid portion 112 when the outer lid portion 112 of the outer conductor 100 is bent The inner lid portion 212 received at the outer surface of the inner lid portion 212 has an obliquely formed guide wall 248 on both sides of the shoulder portion 208, (I.e., a normal position) for properly fixing the center conductor C1 by the side surface 262 and is guided to collapse. The tip side surface 262 of the inner lid portion 212 is in contact with the guide wall 248 or facing each other with a slight gap and the inner lid concave surface 264 is also in contact with the seating convex surface 266 The center conductor C1 of the coaxial cable is sandwiched between the inner surface of the inner lid portion 212 and the contact portion 304 of the terminal 300 and pressed against each other with a slight gap therebetween.

As a material for molding the insulating seat 200, a molding material in which a filler such as glass fiber, carbon fiber or mica is filled in a heat-resistant and flexible material such as a liquid crystal polymer (LCP) Is used.

In the case where the insulating seat 200 is formed of LCP resin or the like in which a filler is blended, the distribution of the filler at the root of the inner lid 212 is concentrated or the filler is present at the bending position of the root The inner lid portion 212 may not be bent at a proper position of the root portion. In such a case, the pressing surface of the inner lid portion 212 is displaced from a position where the inner surface of the inner lid portion 212 overlaps the supporting surface of the contact portion 304 of the terminal 300 accurately, so that the central conductor C1, and as a result, the characteristic impedance of the coaxial cable is deteriorated, and there is a problem that the high-frequency characteristic becomes unstable.

The inner lid portion 212 is bent from the proper position of the root portion so that the pressing surface of the inner lid portion 212 always presses the center conductor C1 between the support surface of the contact portion 304 at the normal position 11, an indentation 270 is formed at the root of the inner lid 212 to make the thickness of the inner lid 212 the thinnest. The incisal portion 270 is formed in the base portion of the inner lid portion 212 and has a shape such as a V-shape or a U-shape that is bent in a bendable shape and extends in the width direction of the inner lid portion 212 ) to be.

The center conductor C1 is sufficiently sandwiched between the inner lid portion 112 and the outer lid portion 112 to be bent at the position of the inserting portion 270 which is bent easily when the inner lid portion 112 collapses toward the contact portion 304 The inner lid portion 212 can be bent and knocked down to a normal position where it can be pushed and fixed. When the inner lid portion 212 is bent to press the center conductor C1 between the pressing surface of the inner lid portion 212 and the support surface of the contact portion 304, At least a part thereof may be cut off. The inner lid portion 212 is fixed by a sufficient pressing force received from the outer lid portion 112 (in particular, the flat lid portion 136), and even when the inner lid portion recess 212 The inner lid portion 212 is supported and fixed by the surface 264 and the seat convex surface 266, the tip side surface 262 and the guide wall 248.

While the present invention has been described in detail based on the embodiments thereof, it is needless to say that the present invention is not limited to the above-described embodiments, and various changes can be made without departing from the gist of the present invention .

The L-type coaxial connector has a variety of applications. For example, it can be used for internal wiring of information devices and electronic devices in a wide range of industrial fields such as information communication equipment industry and automobile industry.

100 ... External conductor
104 ... Ministry of Commerce
106 ... Clearance
108 ... Retaining arm
112 ... Outer lid portion
116 ... A stem seat
120 ... Groove
122 ... Illusion lock home
124a, 124b ... The
128a, 128b ... The
132 ... Bend
136 ... Flat cover
140 ... Side
144 ... Stone top
148 ... [0035]
152 ... Side
156 ... Shielded wire caulking part
160 ... Side
164 ... Stone top
168 ... Shell calking part
176 ... Stone top
200 ... Isolated seat
204 ... The body portion
208 ... Shoulder portion
212 ... Inner lid part
216 ... The terminal accommodating portion
220 ... Flange portion
224a, 224b ... projection part
228a, 228b ... projection part
232 ... Seat
236 ... Center conductor guide surface
240 ... slope
244 ... Ridge
248 ... Guide wall
252 ... Shoulder section
256a, 256b ... Terminal block
260a, 260b ... Terminal block
262 ... Tip side
264 ... Inner lid concave surface
266 ... Seat convex surface
270, 270a, 270b, 270c ... Section
300 ... Terminals
302 ... Cable side end
304 ... Contact
308 ... The fitting portion
312 ... Uneven portion
314 ... Inner lid side end
316 ... Protrusion
318 ... Center conductor regulating surface
320a, 320b ... Snow
322a, 322b ... The press-
324a, 324b ... The press-
C1 ... Center conductor
C2 ... dielectric
C3 ... Shield line
C4 ... coat

Claims (7)

A coaxial cable having a cylindrical portion opened in a fitting direction with respect to the mating connector and supporting the coaxial cable so that the central axis of the coaxial cable is perpendicular to the fitting direction, Wow,
An insulating seat of an insulating material accommodated in the cylindrical portion of the outer conductor,
And a terminal of a conductive material accommodated in the terminal accommodating portion of the insulating seat and electrically connected to the central conductor of the coaxial cable,
The terminal includes:
A flat plate-shaped contact portion contacting the central conductor of the coaxial cable at an upper surface thereof,
A fitting portion that comes into elastic contact with the terminal of the mating connector when the mating connector is fitted with the mating connector,
A press-fit portion formed in the vicinity of the end portion of the contact portion opposite to the coaxial cable and press-fitted into the groove of the terminal accommodating portion of the insulating seat,
And a protruding portion formed on an upper surface of the contact portion and regulating the tip position of the center conductor of the coaxial cable,
The protruding portion is formed so as to protrude from the under side of the contact portion from the inside,
And the width of the protruding portion is wider than the end portion of the coaxial cable. The method according to claim 1,
Wherein a width of the protruding portion is narrower toward the end of the coaxial cable than the width of the coaxial cable. 3. The method according to claim 1 or 2,
And the height of the protruding portion is the highest at the side of the coaxial cable and is lower toward the end. 3. The method according to claim 1 or 2,
Wherein the protruding portion has a triangular shape and the first side of the triangular shape defines a central conductor restricting surface for restricting the tip position of the center conductor, ≪ / RTI > 5. The method of claim 4,
And the height of the protruding portion is lowest at a position of the vertex opposed to the first side. 6. The method of claim 5,
Wherein a height of the protrusion is equal to a flat surface of the contact portion at a position of the vertex opposite to the first side. 3. The method according to claim 1 or 2,
Wherein the protruding portion has a trapezoidal shape in which a first side of the coaxial cable side is a bottom floor and a second side of the end side is an upper floor, and the first side has a center conductor regulation And the second side is in the vicinity of the end.

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