TWI431854B - Electric connector and assemblage thereof - Google Patents

Description

Electrical connector and electrical connector assembly

The present invention relates to an electrical connector and an electrical connector assembly that electrically connect an end portion of a signal transmission medium to a wiring pattern.

In general, in various electronic devices and electric machines such as mobile phones, it is common to use an electrical connector to connect end portions of various signal transmission media composed of a thin coaxial cable, a flexible wiring board, or a printed wiring board to the printed wiring board side ( For example, refer to Patent Document 1) below. The electrical connector connects the end portion of the signal transmission medium to a predetermined wiring pattern (circuit), but is generally configured such that, as shown in FIG. 14, a socket connection is packaged on the circuit substrate 2 mounted inside the product housing 1. The plug connector 5 to which the end portion of the signal transmission medium 4 composed of a thin coaxial cable or the like is connected is fitted to the receptacle connector 3. Furthermore, the functions of the electrical connectors 3, 5 used at this time are: the necessary information signal transmission is performed via the signal line, and the shield signal for grounding is connected to the ground circuit via the shield line.

On the other hand, in recent years, with the rapid development of miniaturization and thinning of electronic devices and the like, electrical connectors have been gradually reduced in cost and cost, and it is urgent to simplify the configuration of the electrical connectors 3 and 5. In order to omit the socket connector 3, it is also considered that the connecting leg of the plug connector 5 is directly welded to the conductive line of the product frame 1, but since the product frame 1 is made of a resin molding material, heat resistance is low. It is not possible to directly solder or package electronic parts on the product frame. Therefore, any of the commonly used electrical connectors is provided such that one end of the electrical connector (socket connector) 3 is packaged on the printed circuit board 2 having the wiring pattern, and the other end of the electrical connector (plug connector) 5 is embedded. The basic configuration of the electrical connector 3 at one end of the package is incorporated. However, from the limitation of this basic configuration, it is difficult to achieve a large reduction in cost and cost.

[Previous Technical Literature]

[Patent Literature]

Patent Document 1: Japanese Patent Laid-Open No. 2001-43939

Patent Document 2: Japanese Patent Laid-Open Publication No. 2002-324636

Accordingly, it is an object of the present invention to provide an electrical connector and an electrical connector assembly that can achieve a low profile and a low cost by a simple configuration.

In order to achieve the above object, in the electrical connector of the present invention, two wiring patterns for signal transmission and grounding of the surface of the wall portion of the electronic product product frame having the predetermined electronic circuit are electrically connected to the signal transmission medium. The terminal portion is configured such that the signal transmission conductive terminal contact portion attached to the insulating cover elastically contacts the signal transmission wiring pattern, and the conductive housing provided on the insulating cover is grounded The terminal is connected to the wiring pattern for the grounding of the grounding wire, and the electrical connector is configured to include an insertion fitting portion that is fitted into a fitting hole having an opening on the surface of the product casing, and is fitted. Further, the insertion fitting portion is provided with a fitting locking portion that holds the insertion fitting portion into the fitting hole, and the fitting locking portion serves as the grounding terminal contact portion; Furthermore, the signal transmission wiring pattern is exposed to at least one of the front and back surfaces of the product casing forming the opening of the fitting hole. Further, the grounding wiring pattern is exposed on both sides of the front surface of the product frame forming the opening of the fitting hole, and the insertion fitting portion is inserted into the product frame. When the hole is inserted, the contact portion of the signal transmission conductive terminal is in contact with the signal transmission wiring pattern, and the grounding terminal contact portion of the fitting locking portion is in contact with the ground wiring pattern.

Further, in the electrical connector assembly of the present invention, the following components are used: the product frame constitutes an electronic device having a predetermined electronic circuit, and two types of signal transmission and grounding are formed on the surface of the wall portion. a wiring pattern; and the above electrical connector.

According to this configuration, the single connector directly fits the wall portion of the product casing, and in the fitting state of the single connector, the signal transmission conductive terminal contact portion contacts the signal transmission exposed on the surface of the product casing Use the wiring pattern to connect the parts. Therefore, the electrical connection between the circuit board used previously and the fitting object to be mounted on the circuit board is not required, and the electrical connection of the signal transmission medium is easily configured, so that the parts can be reduced. The solder package is omitted, and a large cost reduction can be performed, and problems such as solder quality and impedance unevenness in the soldering step are improved, whereby the reliability of the electrical connection is improved. Further, since the grounding terminal contact portion provided in the fitting locking portion is in good contact with the grounding wiring pattern by the holding force of the fitting locking portion, the electrical connection is reliably achieved by this point. Sex is also improved.

Further, in the present invention, it is preferable that the signal transmission contact terminal portion and the grounding terminal contact portion are disposed in a plane orthogonal to the fitting direction, and the positional relationship of rotation or asymmetry is preferable.

According to this configuration, when the electrical connector is erroneously placed on the other side in the rotation direction during the fitting operation, electrical conduction cannot be achieved even if the fitting is possible, or the fitting operation itself cannot be performed. It can prevent mis-fitting.

Further, in the above-described insertion fitting portion of the present invention, it is preferable that the projection shape in the fitting direction has a shape having a rotational asymmetry in a plane orthogonal to the fitting direction.

According to this configuration, when the electrical connector is erroneously placed on the other side in the rotational direction during the fitting operation, the fitting operation cannot be performed, so that erroneous fitting can be prevented.

Further, in the present invention, the two contact portions of the signal transmission conductive terminal and the grounding terminal are respectively provided on a swing side distal end portion of the arm member that is cantilevered and swingably extended, and It is preferable that the two arm members are oriented in such a manner that the directions from the respective swing fulcrums to the contact portions are opposite to each other.

According to this configuration, the moments centered on the contact portions generated by the elastic forces of the two arm members cancel each other in opposite directions, so that the electrical connector can be maintained during the fitting operation and after the fitting. stable state.

Further, in the present invention, it is preferable that the contact portion between the grounding terminal formed by the fitting locking portion and the contact portion of the signal transmission conductive terminal sandwiches the product frame wall portion.

According to this configuration, the entire electrical connector that is fitted to the product casing can be stably held by the clamping force of the fitting locking portion and the grounding terminal.

Further, in the present invention, the fitting locking portion is provided at a swing-side distal end portion of the arm-shaped member that is cantilevered and swingably extended, and the swinging fulcrum of the arm-shaped member is applied to the fitting locking portion. It is preferable that they are disposed so as to face each other in the thickness direction of the wall portion of the product casing.

According to this configuration, in a state in which the electrical connector is fitted into the product casing, a load is applied to the fitting locking portion from the swing fulcrum of the arm member in the vertical direction. In this case, the position of the swinging fulcrum of the connecting arm member and the swinging radius of the engaging locking portion hardly change by the load applied to the fitting locking portion, so that the fitting locking portion is difficult to be self-made. The body falls off.

Further, in the invention, the plurality of fitting locking portions are provided along the longitudinal direction of the signal transmission medium, and the plurality of fitting locking portions are integrally coupled to each other.

According to this configuration, the locking force of the fitting locking portion is enhanced by the extending direction of the long side of the signal transmission medium, and the electric power can be stably maintained even when an unnecessary operating force is applied to the signal transmission medium. Connector.

Further, in the present invention, the conductive case has a case body portion in which the grounding conductive terminal is integrated, and a case cover portion that is coupled to the case body portion by a bendable connecting member, and the connecting member It is preferable to provide a position that does not face the swing fulcrum of the grounding conductive terminal in the above-described bending direction.

According to this configuration, when the connecting member is bent to attach the outer casing cover portion to the outer casing main portion, the bending influence of the connecting member is less likely to affect the grounding conductive terminal, and deformation of the grounding conductive terminal can be avoided.

As described above, the present invention is configured such that a single connector directly fits a wall portion of the product frame, and in a fitting state of the single connector, the contact portion of the contactor is exposed to the exposed portion. Since the contact portion of the wiring pattern on the surface of the hole is fitted, the circuit board used in the prior art and the electrical connector to be mounted on the circuit board are not required, and the signal transmission medium is configured by a simple configuration. Since the electrical connection is made, the number of parts can be reduced, and the solder package for the circuit board can be omitted, thereby reducing the cost and improving the connection reliability. Therefore, the circuit board and the electrical connector of the fitting object can be omitted, and the electrical connector can be omitted. Further, it is possible to achieve a reduction in size, a low profile, and a low cost of the electrical connector.

Hereinafter, an embodiment in which the present invention is applied to a vertical fitting type electrical connector using a thin coaxial cable as a signal transmission medium for electronic use will be described in detail based on the drawings. The product frame of the machine is directly fitted from the upper side.

In other words, the plug connector 10 according to an embodiment of the present invention is formed on the surface of a wall portion of a product casing MF that constitutes an electronic device such as a mobile phone having a predetermined electronic circuit. The wiring pattern CP is electrically connected to the end portion of the thin coaxial cable SC as a signal transmission medium, and forms an antenna and a structure on the inner side surface or the outer side surface of the wall portion of the product frame MF, that is, the front and back surfaces, by printing or the like. A wiring pattern CP of one of various circuits.

In the above-described product frame MF wall portion, the fitting hole MFa formed in the wall portion of the product frame MF is inserted, and the fitting hole MFa provided in the wall portion of the product frame MF is self-plugged. The connector insertion portion 10B in which the connector body portion 10A of the connector 10 protrudes is fitted by being inserted from the upper side. That is, in the connector body portion 10A of the plug connector 10, the end portion of the thin coaxial cable SC as a signal transmission medium is connected as follows, and the plug connector 10 to which the thin coaxial cable SC is connected is first shown in FIG. And as shown in FIG. 2, it is disposed above the fitting hole MFa. Then, the entirety of the plug connector 10 disposed on the upper side thereof is lowered in a direction substantially orthogonal to the surface of the wall portion of the product casing MF, and the connector of the plug connector 10 is inserted as shown in FIGS. 4 to 8. The portion 10B is inserted into the fitting hole MFa and fitted therein.

In this manner, in a state in which the plug connector 10 is fitted into the fitting hole MFa of the product casing MF, the end portion of the thin coaxial cable SC is connected to the wiring pattern CP via the plug connector 10, and the plug connector is inserted in the following. The direction of 10 is downward, and the direction of removal is opposite to the direction of removal.

Here, the fitting hole MFa in the wall portion of the product casing MF is formed by arranging a pair of through holes in a substantially line symmetry. Each of the fitting holes MFa has a main hole portion MFa1 formed in a substantially rectangular shape in plan view, and a longitudinal direction formed in the main hole portion MFa1 so as to protrude in a direction approaching the other fitting hole MFa. One of the end hole sides (front end edge side) of the expansion hole portion MMa2. The opening shape of each of the fitting holes MFa of the main hole portion MFa1 and the expansion hole portion MFa2 is substantially linearly symmetrical as described above, that is, a shape that is rotationally asymmetrical, and the plug is inserted into the fitting hole MFa. The connector insertion portion 10B of the device 10 also corresponds to the opening shape of the fitting hole MFa, and the projection shape in the fitting direction is a shape that is rotationally asymmetrical in a plane orthogonal to the insertion fitting direction.

The shape in which the connector insertion portion 10B of the plug connector 10 and the fitting hole MFa are rotationally asymmetrical is used for the positional alignment of the plug connector 10 during insertion and fitting. In other words, when the connector insertion portion 10B of the plug connector 10 is inserted into and fitted into the fitting hole MFa, the fitting operation itself cannot be performed when the electrical connector 10 is erroneously disposed on the other side in the rotation direction. Therefore, mis-fitting can be prevented.

Further, a portion of the pair of fitting holes MFa is disposed along the longitudinal direction (front-rear direction) of the fitting hole MFa in the distal end portion of the wiring pattern CP. The wiring pattern CP is composed of the signal conductive line CPa and the ground conductive line CPb, and the end portions of the signal conductive lines CPa and the ground conductive line CPb are substantially central portions in the longitudinal direction (front-rear direction) of the fitting hole MFa. The relationship between each other. As described above, in the present embodiment, the signal conductive line CPa and the ground conductive line CPb of the wiring pattern CP are formed on the outer surface of the back surface of the product frame MF in which the opening of the fitting hole MFa is formed, and the product frame is formed on the outer surface. On the inner surface of the MF, a ground conductive line CPb' (see FIG. 3) is formed at a position corresponding to the ground conductive line CPb of the outer surface.

On the other hand, the plug connector 10 is configured as a vertical fitting type connector in which the fitting hole MFa is fitted to the upper side as described above, but is connected as a signal to the connector body portion 10A of the plug connector 10. An example of a transmission medium is a thin coaxial cable SC end portion. Hereinafter, the end edge portion of the plug connector 10 to which the thin coaxial cable SC is connected is referred to as a "rear edge portion", and the other end portion is referred to as a "front end edge portion". Further, each end edge portion of the fitting hole MFa corresponding to the rear edge portion and the front end edge portion of the plug connector 10 is similarly referred to as a rear end edge portion and a front end edge portion. Further, it is said that the directions toward the rear end edge portion and the front end edge portion are "rear" and "front".

As the end portion of the thin coaxial cable SC as the signal transmission medium, the cable center conductor (signal line) SCa and the cable outer conductor (shield line) SCb are exposed in a coaxial manner by peeling off the circumferential covering material, and along The cable center conductor SCa disposed on the central axis of the thin coaxial cable SC is connected to a signal transmission conductive terminal (signal contactor) 12 mounted on the insulating cover 11, thereby constituting a signal loop. Further, the cable outer conductor SCb disposed so as to surround the outer peripheral side of the cable center conductor SCa is connected to a grounding conductive terminal (ground contactor) 13 integrated with the conductive outer casing 14 described below, thereby forming a ground. Loop.

The insulating cover 11 constituting the plug connector 10 corresponds to the connector body portion 10A and the connector insertion portion 10B, and is integrated with the insulating body portion 11a and the insulating insertion portion 11b. In addition to the thin coaxial cable SC described above, the insulating main body portion 11a is also provided with a signal transmission conductive terminal (signal contactor) 12 and a grounding conductive terminal (ground contactor) 13. Further, the insulating insertion portion 11b is formed by four columnar members projecting from the insulating main body portion 11a, and the insulating insertion portion 11b is inserted into the fitting hole MFa on the side of the product frame MF of the fitting target by the lower end portion. Composition. An inclined surface for insertion guide is provided at a lowermost end portion of the insertion portion of the insulating insertion portion 11b.

The outer surface of the insulating cover 11 having the insulating main body portion 11a and the insulating insertion portion 11b is covered by a conductive outer casing 14 formed of a thin metal member. In particular, as shown in FIG. 11, the conductive outer casing 14 covers the outer casing main body portion 14a of the outer peripheral side surface of the insulating main casing portion 11a of the insulating outer casing 11 in an annular shape, and the outer casing cover of the upper surface portion of the insulating main body portion 11a of the insulating outer casing 11 as well. The portion 14b is formed by covering the outer casing insertion portion 14c provided around the four insulating insertion portions 11b of the insulating cover 11 so as to surround the outer side. Wherein, the cable support portion 14d, which is formed in a substantially semicircular shape in a longitudinal section, protrudes slightly horizontally toward the rear, and the inner wall surface of the cable support portion 14d is placed and receives the thin coaxial portion. Cable SC end section.

Further, in the initial state before the end portion of the thin coaxial cable SC is connected and fixed, the outer casing cover portion 14b of the conductive outer casing 14 is in an open state as shown in Figs. 11 and 12 . That is, in this initial state, the outer cover portion 14b is formed by a pair of thin and wide members formed on the other side of the cable supporting portion 14d, that is, the front end portion of the outer casing main body 14a. Configured slightly above the vertical. Further, an insulating pressing plate 11c which is raised above the insulating main body portion 11a of the insulating cover 11 is disposed inside the insulating pressing plate 11c along the inner surface of the casing cover portion 14b.

Further, in the open state of the conductive outer casing 14, the end portion of the thin coaxial cable SC is placed and placed so as to be received by the cable supporting portion 14d as shown in Fig. 12, as shown in Fig. 13, the connecting member 14e and The insulating and pressing plate 11c is bent at substantially right angles, and the outer casing cover portion 14b of the electrically conductive outer casing 14 is poured in such a manner as to be rotated to a slightly horizontal state. Thereby, the outer casing cover portion 14b covers the insulative housing portion 11a of the insulating cover 11 from the upper side, thereby bringing the electrically conductive outer casing 14 into a closed state.

At this time, the outer casing cover portion 14b is configured such that the outer portion is covered by the upper portion of the outer casing main portion 14a, and the outer side portion is covered with the upper portion from the cable supporting portion 14d and the thin coaxial cable SC. In other words, the outer casing cover portion 14b is formed in a cross section at a position corresponding to the cable supporting portion 14d and the thin coaxial cable SC. The first holding portion 14f and the second holding portion 14g are provided in a zigzag shape. The first holding portion 14f and the second holding portion 14g have a cross section The open portion of the glyph is formed facing the cable support portion 14d and the thin coaxial cable SC, and is vertically inclined when the outer casing cover portion 14b is fallen down to a slightly horizontal state as described above. The glyph covers the cable support portion 14d and the thin coaxial cable SC. Further, the front end portions of the side plate members constituting the open portions of the first holding portion 14f and the second holding portion 14g are bent inward as shown by an arrow A in Fig. 13, and are fixed by rivets and external to the cable. The conductor SCb is in contact with the cable support portion 14d and the first holding portion 14f, thereby constituting a ground circuit using the conductive outer casing 14.

Further, the grounding conductive terminal (grounding contactor) 13 is integrally formed with the outer casing main body portion 14a of the conductive outer casing 14, and more specifically, a cantilever extending from the front end of the outer casing main portion 14a toward the rear. A member is formed. The grounding conductive terminals 13 and 13 that are branched in the bifurcated shape are disposed on both sides of the thin coaxial cable SC and the signal transmission conductive terminal (signal contactor) 12, and the grounding conductive is provided. The terminal 13 and the contact portions 13a and 13a provided at the distal end portion of the extension side of the 13 are in contact with the ground conductive path CPb formed on the outer surface of the front and back surfaces of the product frame MF when the connector is fitted.

At this time, the connection member 14e that connects the case main body portion 14a and the case cover portion 14b is provided at a position that does not face the swing fulcrum 13b of the ground conductive terminal (ground contact) 13 in the bending direction of the connection member 14e.

According to this configuration, when the connecting member 14e is bent to attach the case cover portion 14b to the case body portion 14a, the influence of the bending of the link member 14e is hard to reach the grounding conductive terminal (ground contactor) 13, thereby avoiding the Deformation of the grounding conductive terminal 13 or the like.

Further, the case main body portion 14a and the case insertion portion 14c are disposed on the outer sides of the grounding conductive terminals 13 and 13 so as to be in a standing wall shape, and one end portion of the upper end portion of the case main body portion 14a faces the insulating cover 11 The inner side of the side is bent and then downward to become a cantilever beam. Further, a pair of lower end portions of the arm-shaped member 14h extending downward from the upper end edge portion of the casing main body portion 14a is provided with a pair of plug-in insertion portions 10B inserted into the fitting hole MFa. The fitting locking portions 14i and 14i are provided.

The pair of fitting locking portions 14i and 14i provided at the lower end portion of the arm member 14h and the arm member 14h are formed as the grounding terminal of the conductive outer casing 14, and each of the fitting locking portions 14i It is formed by a meandering plate-like member that protrudes stepwise toward the inside of the connector. Further, the stepped portion of each of the fitting locking portions 14i is formed by a cantilever beam structure of the arm member 14h when inserted into the fitting hole MFa when the connector is fitted. The elastic displacement acts to protrude toward the inner side surface (lower side surface of FIG. 8) of both sides of the back surface of the product frame MF, thereby being formed into an engaged state. By providing the fitting locking portion 14i formed of the stepped portion, the plug connector 10 can be inserted into the product frame MF to provide a so-called snap feeling, and can be fitted to the plug connector 10 The plug connector 10 in the fitting hole MFa is kept in the locked state.

Further, a contact portion that is in contact with the ground conductive path CPb' provided on the inner surface of the back surface of the product casing MF is provided on the stepped portion of the fitting locking portion 14i, and is fitted to In the fitting state of the plug connector 10 in the fitting hole MFa, a ground loop is formed to electrically connect.

At this time, the arm-shaped member 14h is configured to swing around the swing fulcrum 14j at the upper end side portion thereof or the vicinity thereof, and the swing fulcrum 14j of the arm member 14h is disposed substantially above the fitting locking portion 14i. The position of the swing fulcrum 14j corresponds to the fitting locking portion 14i so as to face each other in the thickness direction of the wall portion of the product casing MF.

According to this configuration, the load applied to the fitting locking portion 14i is applied from the swing fulcrum 14j of the arm member 14h in the vertical direction in a state where the plug connector 10 is fitted to the product frame MF. In this case, the position of the swinging radius of the swinging fulcrum 14j and the fitting locking portion 14i of the connecting arm member 14h hardly changes by the load applied to the fitting locking portion 14i, so that the engaging locking portion 14i is fitted. It is difficult to fall off from the product frame MF.

Here, a plurality of (two) fitting locking portions 14i are provided at the lower end portion of the arm member 14h, and the fitting locking portions 14i, 14i are long in the thin coaxial cable SC along the writing signal transmission medium. The side extending direction, that is, the front-rear direction, is arranged side by side, and the plurality of (two) fitting locking portions 14i and 14i are connected to each other via the arm-shaped member 14h.

According to this configuration, the engagement force of the fitting locking portion 14i with respect to the product frame MF is enhanced in the longitudinal direction of the thin coaxial cable (signal transmission medium) SC, thereby even the thin coaxial cable SC When the unnecessary operating force is imparted, the plug connector 10 can be stably held.

On the other hand, in the present embodiment, the signal transmission conductive terminal (signal contactor) 12 is attached to the insulative housing portion 11a of the insulating cover 11 by press fitting or insert molding, and the like, in particular, as shown in FIG. The cable holding portion 12a of the cable center conductor (signal line) SCa of the thin coaxial cable SC, and the elastic spring extending from the cable holding portion 12a toward the lower side and contacting the signal conductive line CPa of the wiring pattern CP Part 12b.

The cable holding portion 12a includes the following upper side beam portion 12c, and has a rib structure that is formed by bending the shape of the upper side beam portion 12c in a side view and having a shape that is slightly U-shaped. The cable center conductor (signal line) SCa of the thin coaxial cable SC is sandwiched by a clamp. A recessed portion that presses the cable center conductor (signal line) SCa from the upper side is provided in a portion of the side wall portion 12c of the cable holding portion 12a. Moreover, the recessed portion provided in the upper side beam portion 12c and the lower side of the cable center conductor SCa are placed at opposite positions, and are provided in a locking portion (not shown) for locking the insulating cover 11. Further, the locking portion is provided with the signal transmission conductive terminal 12 together with the rear side, and then bent to the lower side, and then extends forward to the vicinity of the position of the locking portion, and then extends downward to the elastic spring portion 12b.

Further, in the initial state before the end portion of the thin coaxial cable SC is connected, the upper side beam portion 12c of the cable holding portion 12a is in an open state as shown in Figs. 11 and 12, for example. In other words, in the initial state, the upper side beam portion 12c is configured to have a shape that rises obliquely upward, and if the end portion of the thin coaxial cable SC is placed on the cable support portion 14d as shown in FIG. As shown in Fig. 13, the outer casing cover portion 14b of the electrically conductive outer casing 14 is lowered together with the insulating and pressing plate 11c to a slightly horizontal state, and the upper side beam portion 12c of the cable clamping portion 12a is closed by the insulating pressing plate 11c. It is lowered to a slightly horizontal state, and the cable center conductor (signal line) SCa is pressed by the upper side.

Further, the elastic spring portion 12b of the signal transmission conductive terminal (signal contactor) 12 is extended in a cantilever shape by the cable holding portion 12a obliquely downward to the inside of the insulating body portion 11a, and is curved downward toward the lower side. After that, it is raised upwards to form. Further, a contact portion 12d that contacts the signal conductive line CPa provided in a portion between the pair of fitting holes MFa is formed at a lowermost end apex portion of the curved portion below the elastic spring portion 12b. The contact portion 12d is formed by being pressed against the signal conductive line CPa by the elastic displacement action of the cantilever-shaped elastic spring portion 12b.

On the outer sides of both sides of the signal transmission conductive terminal 12, a pair of grounding conductive terminals (grounding contacts) 13, 13 are disposed as described above, and corresponding to the signal transmitting conductive terminals (signal contactors) The contact portion 12d on the 12, the grounding terminal 13, the contact portion 13a provided in each 13, and the 13a are disposed on both side portions of the rear region, and the contact portions 12d, 13a, 13a are orthogonally fitted. In the plane of the direction, it becomes a positional relationship of rotational asymmetry.

According to this configuration, when the plug connector 10 is erroneously placed on the other side in the rotation direction during the fitting operation, the fitting work itself cannot be performed, or even when it is possible to be fitted, it is electrically It does not conduct, so it can prevent mis-fitting.

Further, the contact portion 12d of the signal transmission conductive terminal (signal contactor) 12 and the contact portion 13a of the grounding terminal (ground contact) 13 of the conductive housing 14 are respectively provided in a cantilever shape as described above. The swing-side front end portion of the arm-shaped member that extends in the front-rear direction, and the direction in which the arm-shaped members extend, that is, the direction from the respective swing fulcrums 12e, 13b to the contact portions 12d, 13a, is set to be opposite to each other in the front-rear direction direction.

In this configuration, the contact portion is formed by the elastic displacement action of the two arm-shaped members of the cantilever beam constituting the signal transmission conductive terminal (signal contactor) 12 and the grounding terminal (ground contactor) 13. 12d, 13a are the moments of the center, and the two moments are opposite to each other, so they cancel each other out. As a result, the plug connector 10 can be maintained in a stable state during the fitting operation and after fitting.

Further, the contact portion 13a of the signal transmission conductive terminal (signal contactor) 12 and the contact portion 13a of the grounding terminal (ground contact) 13 and the fitting locking portion 14i serving as the grounding terminal are connected. The positional relationship between the point portion and the wall portion of the product frame MF is sandwiched in the thickness direction, and is configured to be elastically displaced by the two arm members of the cantilever beam constituting the signal transmission conductive terminal 12 and the grounding terminal 13. The plug connector 10 is held in the up and down direction with respect to the wall portion of the product casing MF.

According to this configuration, the plug connector 10 that is inserted into and fitted to the product casing MF as a whole can be connected to the contact portion 12d of the signal transmission conductive terminal (signal contactor) 12 and the grounding terminal by the fitting locking portion 14i. The contact force of the contact portion 13a of the (ground contactor) 13 is stably held.

As described above, in the present embodiment, the single plug connector 10 is directly fitted to the product frame MF wall portion, and correspondingly exposed to the inner peripheral wall portion of the fitting hole MFa in the fitting state of the single plug connector 10 The contact portions of the signal conducting circuit CPa and the ground conducting circuit CPb of the wiring pattern CP are in contact with the contact portions of the signal transmitting conductive terminal (signal contactor) 12 and the grounding conductive terminal (ground contactor) 13. Therefore, it is not necessary to electrically connect the circuit board and the electrical connector (socket connector) which are packaged on the circuit board, and the electrical connection of the signal transmission medium is simplified. The number of parts is omitted and the solder package is omitted, and the cost reduction can be performed, and the welding quality and the unevenness of the impedance in the soldering step can be improved, whereby the connection reliability can be improved.

The invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit and scope of the invention.

For example, in the above embodiment, the wiring pattern (signal conductive line) CPa for signal transmission is provided only on one side of the back surface of the product frame MF, that is, on the outer side surface, but may be provided on at least one side thereof, for example, only The inner surface, or the outer surface and the inner surface of the back surface of the product frame MF are both surfaces.

Further, in the above-described embodiment, the fitting hole MFa formed on the surface of the wall portion of the product frame MF is formed by an opening having a substantially rectangular shape, and may be a circular hole having a substantially circular shape. Various shapes are formed, and holes that do not penetrate the wall portion of the product casing MF may be used.

Further, in the above embodiment, the present invention is applied to a vertical fitting type electrical connector. However, the present invention can also be applied to a horizontal fitting type electrical connector.

Furthermore, the present invention is not limited to the connector for a single thin coaxial cable according to the above-described embodiment, and the type of the connector for a thin coaxial cable arranged in a multi-pole manner, and the type of the thin coaxial coaxial cable and the insulated cable are electrically connected. The present invention can also be applied to the same, an electrical connector connected to a flexible wiring board or the like.

(industrial availability)

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

1, MF. . . Product frame

2. . . Circuit substrate

3. . . Socket connector

4, SC. . . Thin coaxial cable (signal transmission medium)

5, 10. . . Plug connector

10A. . . Connector body

10B. . . Connector insertion portion

11. . . Insulating housing

11a. . . Insulated body

11b. . . Insulation insert

11c. . . Insulating extrusion plate

12. . . Conductive terminal for signal transmission (signal contactor)

12a. . . Cable clamping

12b. . . Elastic spring

12c. . . Upper side beam

12d, 13a. . . Contact department

12e, 13b, 14j. . . Swing pivot

13. . . Conductive terminal for grounding (ground contactor)

14. . . Conductive housing

14a. . . Housing body

14b. . . Housing cover

14c. . . Housing insert

14d. . . Cable support

14e. . . Connecting member

14f. . . First holding unit

14g. . . Second holding unit

14h. . . Arm member

14i. . . Embedding card

CP. . . Wiring pattern

CPa. . . Signal conductive line

CPb, CPb'. . . Grounded conductive line

MFa. . . Fitted hole

MFa1. . . Main hole part

MFa2. . . Expansion hole section

SCa. . . Cable center conductor (signal line)

SCb. . . Cable outer conductor (shield wire)

Fig. 1 is a perspective view showing the appearance of a state in which a connection operation of an electrical connector according to an embodiment of the present invention is performed.

Fig. 2 is a perspective view showing the appearance of a state before the plug connector is fitted into the fitting hole in the embodiment of the present invention shown in Fig. 1 from the front side.

Fig. 3 is a perspective view showing the plug connector and the fitting hole in the state of Fig. 2 as viewed from the inside.

Fig. 4 is a plan explanatory view showing a state in which the plug connector is fitted into the fitting hole in the embodiment of the present invention shown in Figs. 1 to 3;

Fig. 5 is a perspective view showing a state in which the plug connector and the fitting hole in the state of Fig. 4 are viewed from the inside.

Fig. 6 is a longitudinal sectional view taken along line VI-VI of Fig. 4.

Fig. 7 is a longitudinal cross-sectional view taken along line VII-VII of Fig. 4.

Figure 8 is a cross-sectional explanatory view taken along line VIII-VIII of Figure 4 .

Fig. 9 is a bottom plan view showing the plug connector shown in Figs. 1 to 8;

Fig. 10 is a longitudinal sectional explanatory view taken along line X-X of Fig. 9.

Fig. 11 is an exploded perspective view showing the initial state before the thin coaxial cable is attached to the plug connector shown in Figs. 1 to 10 by a signal transmission medium.

Fig. 12 is a perspective view showing the appearance of the state in which the thin coaxial cable is attached to the plug connector by the signal transmission medium in the state shown in Fig. 11 from the rear side.

Fig. 13 is a perspective view showing the appearance of the plug connector shown in Fig. 11 after the thin coaxial cable is attached by a signal transmission medium, and the lid portion of the conductive casing is bent, covered, and rivet-fixed.

Fig. 14 is a perspective view showing the appearance of a state in which a general electrical connector that is normally used is connected.

10. . . Plug connector

10A. . . Connector body

10B. . . Connector insertion portion

14. . . Conductive housing

14a. . . Housing body

14b. . . Housing cover

14c. . . Housing insert

14e. . . Connecting member

14f. . . First holding unit

14g. . . Second holding unit

CPa. . . Signal conductive line

CPb. . . Grounded conductive line

MF. . . Product frame

MFa1. . . Main hole part

MFa2. . . Expansion hole section

SC. . . Thin coaxial cable (signal transmission medium)

Claims (8)

An electrical connector for electrically connecting a terminal portion of a signal transmission medium to two wiring patterns for signal transmission and grounding formed on a surface of a wall portion of an electronic product product frame having a predetermined electronic circuit The contact portion of the signal transmission conductive terminal mounted on the insulating cover is elastically contacted with the wiring pattern for signal transmission, and is provided for grounding of the conductive housing of the insulating cover. The terminal is connected to the wiring pattern for the grounding of the grounding wire, and the electrical connector is formed by a connector insertion portion that is inserted into a fitting hole having an opening on the surface of the product casing. The connector insertion portion is provided with a fitting locking portion that holds the insertion state of the connector insertion portion with respect to the fitting hole, and the fitting locking portion is connected to the grounding terminal. On the other hand, it is provided that the wiring pattern for signal transmission is exposed on the front and back sides of the product frame forming the opening of the fitting hole. At least one surface of the grounding wire is exposed on the front and back surfaces of the product frame forming the opening of the fitting hole, and is configured to be the connector insertion portion When the insertion hole is fitted into the fitting hole of the product frame, the contact portion of the signal transmission conductive terminal is in contact with the wiring pattern for signal transmission, and the contact portion of the grounding terminal of the fitting locking portion is Contacting the wiring pattern for grounding of the above ground, The contact portion of the grounding terminal formed by the fitting locking portion and the contact portion of the signal transmission conductive terminal are arranged to sandwich the wall portion of the product casing. The electrical connector of the first aspect of the invention, wherein the contact portion between the signal transmission conductive terminal and the grounding terminal is rotated in a plane orthogonal to the fitting direction Configured in a symmetrical positional relationship. The electrical connector of claim 1, wherein the projection shape of the connector insertion portion in the fitting direction has a shape of rotational asymmetry in a plane orthogonal to the fitting direction. The electrical connector according to the first aspect of the invention, wherein the signal transmitting conductive terminal and the grounding terminal are respectively provided in an arm-like member that is cantilevered and that is swingably extended The swing-side end portion is provided; and the two arm-shaped members are set so as to be opposite to each other from the respective swing fulcrums to the contact portions. The electric connector according to the first aspect of the invention, wherein the fitting locking portion is provided on a swinging side end portion of the arm member that is cantilevered and that is swingably extended; and the swing arm member The swing fulcrum is disposed so as to face the fitting engagement portion in the thickness direction of the wall portion of the product casing. For example, the electrical connector of claim 1 of the patent scope, wherein A plurality of the fitting locking portions are provided in the longitudinal direction of the transmission medium, and the plurality of fitting locking portions are integrally coupled to each other. The electrical connector of claim 1, wherein the conductive housing has a housing body portion integrally including the grounding conductive terminal, and a housing cover coupled via a connecting member bendable relative to the housing body portion And the connecting member is provided at a position that does not face the swing fulcrum of the grounding conductive terminal in the direction of the bending. An electrical connector assembly comprising: a product frame, an electronic device having a predetermined electronic circuit, and two wiring patterns for signal transmission and grounding are formed on a surface of the wall portion And an electrical connector as claimed in any one of claims 1 to 7.