KR20130118259A - Electrical connector - Google Patents

Abstract

PURPOSE: An electrical connector is provided to install a device, which restricts the position of an end of a central conductor to a regulated position, on a terminal in the case of connecting coaxial cables. CONSTITUTION: An external conductor which is made of conductive materials (100) includes a tubular part which is open in the connecting direction with the other connector. The external conductor supports a connected coaxial cable in order to hold the central axis of the coaxial cable in an approximately perpendicular position to the connecting direction. The external conductor is electrically connected to a shielded wire of the coaxial cable. An insulation part (200) which is made of insulating materials is held by the tubular part. A terminal (300) which is made of conductive materials is held by a terminal holding unit in the insulating part. The terminal is electrically connected to the central conductor of the coaxial cable.

Description

ELECTRICAL CONNECTOR

The present invention relates to an electrical connector, and more particularly to an L-type coaxial connector used for connecting a coaxial cable.

In recent years, development of electronic devices, such as a mobile telephone, a notebook type personal computer (PC), and a tablet type PC, is brisk. In these electronic devices, there is a request for miniaturization for improving portability, and miniaturization is also required for electronic components mounted therein. L-type coaxial connectors are used for connecting coaxial cables connecting antennas, various electronic components such as RF circuits, central processing units, etc. in notebook PCs, tablet PCs, etc., which are commonly used for mobile phones and recent communication. In many cases, miniaturization is required.

As an L-type coaxial connector intended to be miniaturized, there is a technique disclosed in Japanese Unexamined Patent Publication No. 2008-147094 (Patent Document 1), for example. The L-type coaxial connector described in Patent Literature 1 forms a position limiting part for determining the normal position of the center conductor so that it can be press-contacted to the terminal without soldering in the state where the center conductor is not displaced. This is to keep the center conductor in a regular position.

Japanese Unexamined Patent Publication No. 2008-147094

For example, the height of the connector at the time of cable connection is requested to be about 1 mm. However, considering the processing precision, strength, and product specifications of the parts, it is difficult to simply downsize the connector and the cable. It is necessary to miniaturize by arranging the parts efficiently. In addition, since each component constituting the connector is miniaturized by miniaturization of the connector, various problems occur. For example, there is a tendency that the strength of the connector is weakened by light and short reduction of each component. However, from the viewpoint of the request for high reliability of electronic devices and components, it is necessary to maintain the strength of the connector at the time of assembling or use more than a certain level. In addition, from the viewpoint of the request for high productivity of electronic devices and components, it is necessary to reduce the number of parts, the ease of processing of the parts, the ease of assembling, the reduction of labor, and further reduce the manufacturing cost. .

On the other hand, as also disclosed in the said patent document 1, when connecting a coaxial cable to a coaxial connector, it is necessary to hold the center conductor of a coaxial cable in a regular position. It is then necessary to ensure that the tip of the center conductor does not go beyond it. As a method of positioning a center conductor at the time of a coaxial cable connection, there exists a method of forming the control means which stops against the front end of a center conductor so that the front end of a center conductor may not go too far deep inside. As the regulating means, there may be, for example, a protrusion formed on the center conductor connecting surface on the terminal. As a method of forming the protrusion, for example, there is a method of forming the protrusion by tapping inward from the lower side of the plate-shaped terminal in consideration of low magnification, productivity, and the like. However, when the projection is formed by tapping out, there is a possibility that the strength around the protruding portion may deteriorate due to the miniaturization of the terminal. In particular, in the case of assembling the connector, in the case of the coaxial connector having a structure in which the terminal is press-fitted into the insulating seat, the deterioration of the strength around the press-fitting portion must be avoided.

Therefore, it is an object of the present invention to provide a means for regulating the tip position of a center conductor to a regular position on a terminal in an electrical connector for a coaxial cable, and to maintain the terminal strength above a predetermined level. It is to provide the technology that there is. The above and other objects and novel features of the present invention will become apparent from the description and the accompanying drawings.

The outline | summary of the typical thing of the invention disclosed in this application is briefly described as follows. That is, the electrical connector according to the present invention has a normal 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 outer conductor of a conductive material electrically connected to the shield wire, an insulated seat of an insulating material accommodated in the ordinary portion of the outer conductor, and a terminal accommodating portion of the insulated seat, and electrically connected to the center conductor of the coaxial cable It has a terminal of a conductive material. The terminal includes a flat contact portion in contact with the center conductor of the coaxial cable at an upper surface thereof, a fitting portion in elastic contact with the terminal of the mating connector when fitting with the mating connector, and the coaxial portion of the contact portion. It is formed in the vicinity of the end opposite to a cable, and has a press-in part which presses in the groove | channel of the said terminal accommodating part of the said insulated part, and is formed in the upper surface of the said contact part, and the protrusion part which regulates the front-end position of the center conductor of the said coaxial cable. Moreover, the said projection part is formed so that it may protrude from inside from the lower side of the said contact part, and the width | variety of the said projection part is wider than the said coaxial cable side.

When the effect obtained by the typical thing of the invention disclosed in this application is demonstrated briefly, it is as follows.

(1) The miniaturization and reduction of electrical connectors for coaxial cables can be achieved.

(2) The end position of the center conductor may be regulated to the normal position when connecting coaxial cables.

(3) The strength around the press-fit portion of the terminal is maintained above a predetermined value.

1 is a view showing a state before assembling an L type coaxial connector.
2 is a diagram illustrating a configuration of an outer conductor before assembling the L type coaxial connector.
3 is a diagram illustrating a configuration of an insulated seat before assembly of the L-type coaxial connector.
4 is a diagram illustrating a configuration of a terminal before assembling the L-type coaxial connector.
It is a figure which shows the L-type coaxial connector of the state which the insulated seat and the terminal were press-fitted.
FIG. 6 is a diagram illustrating an L-type coaxial connector in a state where a coaxial cable is disposed on an insulated seat and a terminal. FIG.
It is a figure which shows the L-shaped coaxial connector of the state which bent, bending the outer lid part of an outer conductor, and pressing the inner lid part of an insulation seat.
FIG. 8 is a cross-sectional view of the L-type coaxial connector shown in FIG. 7.
It is a figure which shows the L-type coaxial connector of the state which closed and fixed the outer lid part of an outer conductor, and the inner lid part of an insulated seat completely.
FIG. 10 is a cross-sectional view of the L-type coaxial connector shown in FIG. 9.
It is a figure which shows the insulation seat in the state which pinched | interposed the terminal.

EMBODIMENT OF THE INVENTION Hereinafter, one Embodiment of this invention is described with reference to drawings. In addition, in all the drawings for demonstrating embodiment, the same code | symbol is attached | subjected to the same member as a principle, and the repeated description is abbreviate | omitted.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows each member in the state before assembly of the L-type coaxial connector which concerns on one Embodiment of this invention. 2-4 is a figure which shows the detail of each component. In the L-type coaxial connector according to the present embodiment, the extension direction (center shaft) of the coaxial cable and the fitting direction of the mating connector are substantially perpendicular. This L type coaxial connector includes an outer conductor 100 electrically connected to a shield wire of a coaxial cable (see FIGS. 6 to 10), an insulated seat 200 accommodated in the outer conductor 100, and an insulated seat ( It is comprised by the terminal 300 accommodated in 200 and electrically connected with the center conductor of a coaxial cable.

The outer conductor 100 is made by processing punching, bending, or the like on a metal plate of a conductive material such as phosphor bronze. As shown in FIG. 2, the outer conductor 100 is rounded so that it may become a substantially cylindrical shape, and from the position of the normal part 104 which has the clearance 106 at one point of the circumferential direction, and the position of the both sides which sandwiched the clearance 106 between them. Outer lid formed by standing up from the upper end of the normal part 104 and two retaining arms 108 parallel to the mating connector insertion mounting direction (up-down direction) which extends and protrudes, and are located opposite to the gap 106 in the radial direction. Section 112 and the like.

The normal part 104 is a part which accommodates the main-body part 204 of the insulated seat 200 in concentric position, and has the protrusion part 116 which accommodates the main-body part 204 of the insulated seat 200 in an inner surface. In addition, a plurality of cutting grooves 120 for imparting elasticity in the radially outer side of the normal part 104 are formed in the circumferential direction. On the upper portions of both of the upper sides of the retaining arm 108 and the vertical direction of the retaining arm 108 in the normal portion 104, the upper portions of the retaining portions 200 are pressurized portions 124a and 124b for press-fitting and fixing them. 128a and 128b are formed. Further, in the vicinity of the lower end of the outer circumferential surface of the normal portion 104, an annular lock groove 122 is provided which brings out the function of the lock when fitting with the mating connector.

The outer lid portion 112 is connected to the curved portion 132 and the curved portion 132 having a concave shape, and the flat lid portion 136 covering the normal portion 104 at the time of bending, and the holding arm 108 after the bending. A fixing portion 148 for enclosing and fixing, a shield wire caulking portion 156 for caulking and electrically connecting the shield wire of the coaxial cable, and an outer caulking portion 168 for caulking the outer shell of the coaxial cable. Has The outer lid portion 112 is bent at the bent portion 132, which is a connecting portion with the normal portion 104, when connected to the coaxial cable, to cover the coaxial cable.

The flat lid part 136 has the side part 140 bent downward at the time of bending at both ends. Moreover, when the curved part 132 is bent, the protrusion part 144 is formed in the surface which becomes inward 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 normal portion 104.

The fixed part 148 has the side part 152 bent downward at the time of bending at both ends. After the bend 132 is bent, the side 152 is shaped to abut the outer surface of the holding arm 108 and also to return to the lower side of the holding arm 108.

The shielded wire caulking portion 156 has a side portion 160 and caulks and electrically connects the shielded wire of the coaxial cable after the bent portion 132 is bent. Further, when the bent portion 132 is bent, the protrusion 164 is formed on the inner surface by embossing so that the coaxial cable does not easily come out of the connector even when the coaxial cable is pulled in the stretching direction.

The outer caulking portion 168 also has a side portion 172 and caulks the outer shell of the coaxial cable after the bending portion 132 is bent. Further, when the bent portion 132 is bent, the protrusion 176 is formed on the inner surface by embossing, so that the coaxial cable does not easily come out of the connector even when the coaxial cable is pulled in the stretching direction.

3: shows the detailed structure of the insulation seat 200, (a) is a perspective view, (b) is a top view. The insulating seat 200 is made by molding an insulating material. As the insulating material, for example, a material having heat resistance and flexibility such as a material filled with a filler such as glass fiber, carbon fiber, mica, or the like in a liquid crystal polymer (LCP, liquid crystal polymer) resin or the like is used. As shown in FIG. 3, the insulator 200 has a substantially cylindrical body portion 204 and a shoulder portion 208 extending in an extension projecting direction of a coaxial cable radially outward from an upper position of the body portion 204. And an inner lid portion 212 positioned on the opposite side of the shoulder portion 208 and radially outwardly protruding. Guide walls 248 are formed obliquely on both sides of the shoulder portion 208 of the insulated seat 200, which guides the inner lid portion 212 when the inner lid portion 212 is bent.

In the main body portion 204 of the insulated seat 200, a terminal accommodating portion 216 of a substantially rectangular inner cylindrical surface penetrates up and down to accommodate the tongue-like fitting portion 308 of the terminal 300. And a flange portion 220 is formed at the upper periphery of the body portion 204. Moreover, in the flange part 220, the projection part 224a, 224b which protrudes radially outward is formed in the both sides of the extension part of the shoulder part 208, and a perpendicular direction. Moreover, the protrusion parts 228a and 228b which protrude outside are formed also in the both sides of the extension protrusion direction and the vertical direction above the shoulder part 208. By inserting the insulator 200 into the outer conductor 100, the projections 224a, 224b, 228a, and 228b are formed in a rectangular shape in which the protrusions 224a, 224b, 228a, and 228b are made in the normal part 104 and the holding arm 108 of the outer conductor 100. It press-fits into 124a, 124b, and is attached to recessed part 128a, 128b.

The inner lid part 212 can be bent in the part connected with the main body part 204. The length of the inner lid part 212 is the same as the tip end of the inner lid part 212 with respect to the extending | stretching direction of the shoulder part end surface 252 of the shoulder part 208 in the state in which the inner lid part 212 was fully bent. The length is a position or a little shorter.

The shoulder portion end face 252 of the shoulder portion 208 is located outside the cable extension protrusion direction than the cable side end portion 302 (see FIG. 4) of the terminal 300. The inner side of the main body portion 204 and the inner side of the arm portion have a groove shape cut in a square view from the cable side so as to extend from the connection position with the inner lid portion 212 of the main body portion 204 to the shoulder portion end face 252. The groove-shaped sidewall cut into the rectangle is the guide wall 248, and the terminal 300 is disposed on a portion of the terminal accommodating part side of the seat portion 232 which is the bottom surface. In addition, the seat portion 232 has a center conductor guide surface 236, which is located outside the cable side end portion 302 of the terminal 300, on which the terminal 300 is not disposed. The seat portion 232 has a slope 240 which extends below the upper surface of the contact surface of the terminal toward the tip portion at the cable side edge portion. The center conductor guide surface 236 has a raised portion 244 that is upwardly convex, and an end side of the raised portion 244 forms a part of the slope 240.

4: shows the detailed structure of the terminal 300, (a) is a perspective view, (b) is sectional drawing in the C-C cutting surface of (a). The terminal 300 is made by punching, bending, etc. the metal plate of electroconductive material, such as phosphor bronze. In the usual case, a plurality of identical terminals are attached to the carrier at regular intervals, and, for example, bending is performed on the terminal while the cable end 302 is connected to the carrier. The terminal 300 is used for assembling an L type coaxial connector after removing the cable side end part 302 of the terminal 300 from a carrier. As shown in FIG. 4, the terminal 300 has the contact part 304 which electrically contacts with the center conductor of a coaxial cable, and the fitting part 308 fitted with the terminal of a mating connector. The terminal 300 has press-fitting portions 324a, 324b, 322a, and 322b for fitting to the terminal pin portions 256a, 256b, 260a, and 260b of the insulation seat 200, respectively.

The contact portion 304 has a substantially planar shape extending in the extension protruding direction of the coaxial cable, and an uneven portion formed by a plurality of recesses on the upper surface contacting the center conductor of the coaxial cable so as not to be pulled out by being engaged with the center conductor. 312 is formed. In addition, in the vicinity of the inner lid side end portion 314 on the opposite side to the extending direction of the substantially planar projection, a protrusion for positioning the center conductor of the coaxial cable at the time of the coaxial cable connection to regulate the tip position of the center conductor of the coaxial cable ( 316 is formed slightly ahead of the concentric position in the front-rear direction. The protruding portion 316 has a substantially triangular planar shape having one side (first side) of the central conductor restricting surface 318 which restricts the tip of the center conductor of the coaxial cable from going too deeply inward. A vertex facing the side is located near the inner lid side end 314. When the outer diameter of the front end of the center conductor touches the groove-shaped side wall of the main body, the protruding portion 316 having the one side formed at the position and size at which the front end abuts is formed to knock out from the lower side of the contact portion 304. . Moreover, the protrusion part 316 has the inclination which goes down from the center conductor control surface 318 toward the inner lid side edge part 314, and becomes the lowest in the vicinity of the inner lid side edge part 314. As shown in FIG. And it is the lowest at the vertex facing the said 1st side of a triangle, and becomes the same height as the flat surface of the contact part 304. As shown in FIG. Moreover, the width | variety of the center conductor control surface 318 is the largest in the planar shape, and the width | variety of the protrusion part 316 becomes narrowest in the vicinity of the inner lid side edge part 314. As shown in FIG.

For example, as a means for regulating the tip position of the center conductor, when the rectangular projection is formed by tapping out from the inside, the strength of the indentation portions 324a and 324b may be deteriorated. However, in the present embodiment, the width and the height of tapping are minimized in the vicinity of the press-in portions 324a and 324b, that is, in the vicinity of the inner lid side end portion 314, so that the strength of the portion is greater than or equal to the predetermined value. maintain. Therefore, since the protrusion part 316 of the electrical connector by this embodiment has such a shape, it becomes possible to position the front end of the center conductor of a coaxial cable, and to maintain the intensity | strength of the terminal 300. FIG.

Although the protrusion 316 shown in FIG. 4 is a substantially triangular shape, it is not limited to this shape, Even if it is another shape similar, it can exhibit the same effect. For example, the projection 316 may be trapezoidal. In that case, the projection part 316 becomes trapezoid which makes the 1st side (center conductor restricting surface 318) of the coaxial cable side a lower bottom, and the 2nd side of the inner lid side edge part 314 side an upper bottom. And the center conductor control surface 318 which regulates the front-end | tip position of the said 1st edge center conductor is formed, and the 2nd edge becomes the vicinity of the indentation part 324a, 324b. In addition, the protrusion part 316 may be a shape which cut out a part of egg shape or ellipse. In this case, the part which cut out a part of egg shape or ellipse forms the center conductor control surface 318, and the width | variety of the center conductor control surface 318 part, or the part of the egg shape or oval center vicinity part becomes the widest.

As shown in FIG. 4, the fitting portion 308 has two tongue pieces 320a and 320b extending downward from both ends of the contact portion 304. The tongue tongues 320a and 320b are inclined to narrow each other's distance as they go downward, and the shortest part of the distance is smaller than the size of the center conductor of the terminal (relative terminal) of the mating connector. Further, the tip ends of the tongue-like pieces 320a and 320b are inclined so as to widen the distance from each other so as to guide the center conductor of the mating terminal to the center side. At the time of connection with a mating connector, by the elastic force in the inward direction of the tongue piece 320a, 320b which generate | occur | produces when the fitting part of the center conductor of the terminal of a mating connector presses two tongue tongue pieces 320a, 320b, The fitting portion of the mating terminal is gripped. In the present embodiment, the terminal 300 is a female terminal, but in the present invention, the terminal may be a male terminal. In addition, the snow tongue is not limited to two pieces but may be three or more pieces.

5 is a connector diagram of one embodiment of the present invention after assembling the outer conductor 100, the insulator 200, and the terminal 300. The connector is assembled as described below. First, the protrusions 224a, 224b, 228a, and 228b of the insulation seat 200 are inserted into and mounted to accommodate the body portion 204 of the insulation seat 200 in the ordinary part 104 of the outer conductor 100. It press-fits into the recessed parts 124a and 124b of 100, and is attached to the recessed parts 128a and 128b. Then, the fitting portion 308 of the terminal 300 is press-fitted to be accommodated in the terminal accommodating portion 216 of the insulated seat, whereby the press-in portions 322a, 322b, 324a, and 324b of the terminal 300 are insulated from each other. Are pressed into the terminal pin portions 260a, 260b, 256a, and 256b, respectively. As a result, the lower surface of the contact portion 304 of the terminal 300 is mounted on the upper surface of the seat portion 232 of the insulation seat 200.

6 is a diagram illustrating a state after the coaxial cable is disposed in the connector. After the press-fit fixing of the terminal 300, a coaxial cable is arrange | positioned at a connector. The coaxial cable is stripped by three steps using a stripper or the like, and is exposed from the tip of the coaxial cable in the order of the center conductor C1, the dielectric C2, the shield wire C3, and the shell C4. The end face of the dielectric of the coaxial cable is brought into contact with the shoulder section end face 252 of the insulator 200 and the center conductor C1 of the coaxial cable is connected to the terminal 300 so that the center conductor C1 contacts the terminal 300. ) And the center conductor guide surface 236 of the contact portion 304 and the seat portion 232 of the insulating seat 200. In the case where the portion where the center conductor C1 is peeled off is too long, the tip of the center conductor C1 abuts the center conductor restraint surface 318 of the protrusion 316, so that the cross section of the dielectric C2 is the shoulder section end face ( 252), or because the center conductor C1 is bent, the assembling worker can easily find an assembling abnormality.

FIG. 7: is the figure which bent the outer lid part 112 to the middle after mounting the center conductor C1 of the coaxial cable to the contact part 304. As shown in FIG. When the outer lid portion 112 is bent, the pressing force from the inner surface of the flat lid portion 136 in the outer lid portion 112 (mainly, the protrusion 144 of the inner surface thereof) is applied to the outer lid portion ( The inner lid part 212 is bent together with 112. 8 is sectional drawing in the A-A cutting surface of FIG. As shown in FIG. 8, the contact portion 304 of the terminal 300 and the seat portion 232 of the insulator 200 are located below the portion C11 where the dielectric or the like of the center conductor C1 of the coaxial cable is peeled off. ) Is the central conductor guide surface 236. On the other hand, the dielectric C2, the shield wire C3, and the outer shell C4 of the coaxial cable are located outside the cable extension direction of the insulation seat 200.

And when the outer lid part 112 (especially the flat lid part 136) of the outer conductor 100 is knocked down to cover the normal part 104, the curved part is bent. At that time, the pressing force is applied to the outer surface of the inner lid part 212 of the insulation seat 200 by the flat lid part 136 in the outer conductor 100. The inner lid portion 212 receives the pressing force, and the inner surface (that is, the pressing surface) of the inner lid portion 212 and the terminal 300 support the upper surface of the contact portion 304 (that is, the central conductor C1). The center conductor C1 of the coaxial cable between the support surface). 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 does not open. Also, the shield wire C3 is caulked around the shield wire C3 to secure electrical connection between the shield wire C3 and the external conductor 100. In addition, the outer shell C4 is caulked around the outer shell C4 by the outer shell caulking unit 168 to fix the coaxial cable so as not to come off from the connector. As described above, the center conductor C1 is sandwiched between and the shield wire C3 and the outer shell C4 are largely deformed by caulking and the dielectric C2 exposed from the shield wire is largely sandwiched. It is neither pressed nor caulked, and even if the coaxial cable is fixed to the connector, it does not deform significantly. Therefore, there is little change of electrical characteristics, such as the impedance of a cable at the time of connector connection.

The figure of the connector and coaxial cable after fixing in FIG. 9 is sectional drawing in the B-B cutting surface of FIG. 9 in FIG. The center conductor C1 is sandwiched between the inner surface (pressing surface) of the inner lid part 212 and the upper surface (supporting surface) of the contact portion 304 of the terminal 300 to press the terminal 300 and the center conductor C1. Secure electrical connections. Since the uneven portion 312 on the upper surface of the contact portion 304 meshes with the center conductor C1, the center conductor C1 is unlikely to fall from the terminal 300, so that the electrical connection of the center conductor is stably maintained. In addition, the center conductor C1 is held by the narrow pressure by the inner surface of the inner lid part 212 and the raised part 244 of the insulating seat 200. The central conductor C1 is secured to the electrical connection by the pinching pressure of the inner surface of the inner lid portion 212 and the upper surface of the contact portion 304 of the terminal 300, and the inner surface and the raised portion of the inner lid portion 212. Since it is maintained by the pinching pressure by 244, it is not necessary to fix the center conductor C1 to a terminal by soldering. In addition, when tension is applied to the coaxial cable in the coaxial cable stretching direction, the tension is applied to a portion of the center conductor C1 between the inner lid portion 212 and the ridge portion 244, but the inner lid portion 212 ) Is flat, and the ridge 244 is formed with a smooth curved surface and is not usually pointed, so that the center conductor is not easily disconnected. On the other hand, if the center conductor C1 is not sandwiched between the inner lid portion 212 and the raised portion 244, the portion between the inner lid portion of the center conductor and the cable side end of the contact portion of the terminal Tension is applied. In this case, the leading edge portion on the cable side of the contact portion is often pointed, and tends to cause disconnection because tension is concentrated near the portion in contact with the leading edge portion of the center conductor. In addition, when the cable end part of a contact part is a part connected with the carrier before use of a terminal, since a burr etc. may remain in an end part and a damage may arise in a center conductor, it becomes easy to disconnect especially.

As shown in FIG. 8 and FIG. 10, when the coaxial cable is disposed so that the dielectric C2 is located outside the insulating seat 200, a space is formed below the portion C12 covered by the dielectric C2. At this time, since the outer lid part 112 can move the dielectric C2 downward, the thickness of the inner lid part 212 can be made thinner than the thickness of the dielectric C2, so that it can be made low. Even if the center line of the part C12 moves below the center line of the part C11, since the insulated seat 200 is provided with the slope 240 at the cable side end part, the center conductor C1 has the shoulder part cross section of the insulated seat. It is bent smoothly downward along the slope 240 without being bent at 252, and is not easily disconnected. In addition, even when the dielectric C2 is pressed from the upper portion by the outer lid portion 112, it is not pinched by the seat portion 232 and is not deformed. Therefore, a change in electrical characteristics such as impedance of the cable at the time of connector connection little.

In addition, by bending the front end of the inner lid part 212 in the stretching direction with the shoulder part end face 252 at the time of bending, it is centered by the dielectric C2 whose end face abuts on the insulating seat 200 and the shoulder part end face 252. Since the space between the conductor C1 and the outer conductor 100 is blocked, the center conductor C1 can be made difficult to contact and short-circuit with the outer conductor 100.

The portion C13, which is covered by the shield wire C3 of the coaxial cable and not covered by the outer shell, is coked by the shield wire caulking portion 156, so that the shield wire C3 is pushed into the dielectric C2. Therefore, in this embodiment, although the position of the center in the part C13 exists in the same position in the center and height direction in the part C12, you may move below in this invention.

In the present embodiment, a part of the outer shell C4 is compressed and thinned by caulking by the outer shell caulking unit 168, but since the center conductor in the portion C14 covered by the outer shell moves downward because it has a constant thickness, In the present invention, the portion C14 may maintain the same height.

11, the terminal 300 is inserted into the insulated seat 200, and the press-fitting portions 322a, 322b, 324a, and 324b of the terminal 300 have the terminal recesses 260a, 260b, and 256a of the insulated seat 200. , 256b) is an illustration showing the insulating seat 200 in a press-fitted and fixed state, respectively. The inner lid part 212 of the insulated seat 200 presses the pressing force from the flat lid part 136 in the outer lid part 112 when bending the outer lid part 112 of the outer conductor 100. Receiving from the outer surface of the inner lid portion 212, the inner lid portion 212 is a tip end on both sides of the guide wall 248 and the inner lid portion 212 formed obliquely formed on both sides of the shoulder portion 208. The side 262 is guided to bend and fall to a position (that is, a normal position) for properly fixing the center conductor C1. The tip side surface 262 of the inner lid part 212 is in contact with the guide wall 248 or faces with a slight gap, respectively, and the inner lid part concave surface 264 is also in contact with the convex surface 266. Or, face the gap with a slight gap, the center conductor C1 of the coaxial cable is sandwiched and pressed between the inner surface of the inner lid portion 212 and the contact portion 304 of the terminal 300.

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

When the insulation seat 200 is molded with the LCP resin etc. which the filler was mix | blended, the distribution of the filler in the base of the inner lid part 212 is biased, or a filler exists in the bending position of the base. In some cases, the inner lid portion 212 may not be bent at an appropriate position of the root portion. In such a case, the pressing surface of the inner lid part 212 is shifted from the position which overlaps with respect to the supporting surface of the contact part 304 of the terminal 300 exactly, and the center conductor of a coaxial cable (at a normal position by sufficient pressing force) C1) cannot be pressed in between, and as a result, the characteristic impedance of a coaxial cable may deteriorate and a problem may arise that a high frequency characteristic becomes unstable.

The inner lid portion 212 is bent from an appropriate position of its root portion, so that the pressing surface of the inner lid portion 212 is always pressed between the supporting surface of the contact portion 304 by the center conductor C1 at the normal position. In order to be able to do so, as shown in FIG. 11, the cut-out part 270 which the thickness of the inner lid part 212 becomes thinest is formed in the base part of the inner lid part 212. As shown in FIG. The cutout portion 270 is located at the root portion of the inner lid portion 212 and extends in the width direction of the inner lid portion 212, and has a groove having a shape that is easy to bend, such as a V shape or a U shape, that is, a notch. ) to be.

When it receives the pressing force from the outer lid part 112 and falls to the contacting part 304 side, since it bends at the position of the cut-out part 270 which is easy to bend, the center conductor C1 is fully sandwiched. In the regular position which can be fixed by pressing, the inner lid part 212 can be bent and knocked down. When the cutout portion 270 bends the inner lid portion 212 and sandwiches and presses the center conductor C1 between the pressing surface of the inner lid portion 212 and the supporting surface of the contact portion 304, At least one part may be cut | disconnected. Even when some or all of the cutouts are cut, the inner lid portion 212 is fixed by sufficient pressing force received from the outer lid portion 112 (particularly, the flat lid portion 136), and the inner lid portion is concave. The inner lid part 212 is supported and fixed by the face 264, the convex face 266, the tip side 262, and the guide wall 248.

As mentioned above, although the invention made by this inventor was demonstrated concretely based on the embodiment, it cannot be overemphasized that this invention is not limited to the said embodiment, A various change is possible in the range which does not deviate from the summary. .

Electrical connectors, such as L-type coaxial connectors, have various uses, and can be used, for example, in internal wiring of information devices and electronic devices in a wide range of industries such as the information and communication device industry and the automobile industry.

100 ... Outer conductor
104 ... Trade department
106. Clearance
108 ... Retaining arm
112 ... Outer lid part
116. Stone statue
120... Infeed Home
122 ... Illusion Lock Home
124a, 124b... 걺부
128a, 128b... 걺부
132. Bend
136. Flat lid
140 ... Side
144. Stone head
148. [0035]
152 ... Side
156. Sealed wire caulking part
160 ... Side
164. Stone head
168. Outer Caulking
176. Stone head
200 ... Isolated seat
204 ... The body portion
208. Shoulder Division
212. Inner lid
216. Terminal housing
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 part
260a, 260b... Terminal part
262 ... Tip side
264. Inside cover recess
266. Convex surface
270, 270a, 270b, 270c... Infeed
300... Terminals
302. Cable side end
304... Contact
308. Fitting
312. Uneven portion
314. Inside lid side end
316... Protrusion
318... Center Conductor Regulatory Surface
320a, 320b... Snowflake
322a, 322b... Indent
324a, 324b... Indent
C1... Center conductor
C2... dielectric
C3... Shield ship
C4... coat

Claims (7)

An outer portion of the conductive material having a normal portion opened in a fitting direction with a mating connector, supporting the coaxial cable so that the central axis of the coaxial cable is approximately perpendicular to the fitting direction, and electrically connected to the shield wire of the coaxial cable Conductor,
An insulating seat of an insulating material accommodated in said normal portion of said outer conductor,
It has a terminal of a conductive material accommodated in the terminal receiving portion of the insulated seat, and electrically connected to the center conductor of the coaxial cable,
The terminal includes:
A flat contact portion in contact with the central conductor of the coaxial cable at an upper surface thereof,
A fitting portion in elastic contact with the terminal of the mating connector when the mating connector is fitted;
A press-fit portion formed near the end of the contact portion opposite to the coaxial cable and press-fitted into a groove of the terminal accommodating portion of the insulating seat;
It is formed on the upper surface of the contact portion, and includes a projection for regulating the tip position of the center conductor of the coaxial cable,
The protrusion is formed to knock out from the bottom side of the contact portion,
The said connector has the width | variety of the said coaxial cable side wider than the said end, The electrical connector characterized by the above-mentioned. The method of claim 1,
The said coaxial cable side is the largest, and the width | variety of the said projection part is narrowed toward the direction of the said edge part, The electrical connector characterized by the above-mentioned. 3. The method according to claim 1 or 2,
The height of the said projection part is the highest in the said coaxial cable side, and is lowered toward the direction of the said end, The electrical connector characterized by the above-mentioned. The method according to any one of claims 1 to 3,
The protrusion has a triangular shape, the first side of the coaxial cable side of the triangle forms a center conductor restraint surface for regulating the tip position of the center conductor, and a vertex facing the first side is near the end. Electrical connector, characterized in that. 5. The method of claim 4,
The height of the said projection part is the lowest at the position of the said vertex facing the said 1st side, The electrical connector characterized by the above-mentioned. The method of claim 5, wherein
The height of the said projection part is an electric connector characterized by being the same height as the flat surface of the said contact part in the position of the said vertex facing the said 1st edge | side. The method according to any one of claims 1 to 3,
The projection has a trapezoidal shape having the first side on the coaxial cable side as the bottom bottom and the second side on the end side as the top bottom, wherein the first side regulates the center conductor to regulate the tip position of the center conductor. An electrical connector, said second side being near said end.

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