JP5772257B2 - Electrical connector - Google Patents

Description

  The present invention relates to an electrical connector configured to hold a signal transmission medium with an elastic engagement force of a lock member by inserting a terminal portion of the signal transmission medium to a predetermined position inside an insulating housing.

  In general, various electrical connectors are widely used as means for electrically connecting various signal transmission media such as a flexible printed circuit (FPC) and a flexible flat cable (FFC) in various electrical devices. It is used. For example, in an electrical connector that is mounted and used on a printed wiring board as in Patent Document 1 below, a signal transmission medium made of FPC, FFC, or the like is inserted into the inside from an opening on the front end side of an insulating housing (insulator). Thereafter, the actuator (connection operation means) is rotated so as to be pushed down toward the connection operation position on the front side or the rear side of the connector by the operator's operation force. As a result, a part of the lock member falls into the engagement portion provided in the terminal portion of the signal transmission medium to be engaged, and the terminal portion of the signal transmission medium is held in a substantially immovable state by the lock member. Has been made.

  As described above, the electrical connector provided with the actuator is configured to operate engagement / disengagement of the lock member by rotating the actuator between the connection release position and the connection operation position. Since it is necessary to operate the actuator separately from the operation of inserting a medium (FPC, FFC, etc.), the work efficiency may be a problem. Therefore, for example, as described in Patent Documents 2 and 3 below, the signal transmission medium inserted into the insulating housing is elastically displaced so that a part of the lock member rides on, and then the signal transmission medium is engaged. Conventionally, an electrical connector having a so-called one-action auto-lock mechanism, which is configured such that a part of a lock member falls into a part and engages, has been developed. If an electrical connector equipped with such a one-action auto-lock mechanism is used, the signal transmission medium can be held in a substantially stationary state simply by inserting the signal transmission medium to a predetermined position inside the electrical connector. Is improved.

  However, the one-action auto-locking mechanism employed in the conventional electrical connector has an advantage that locking is performed only by inserting a signal transmission medium (FPC, FFC, etc.) into the electrical connector as described above. There is a tendency that the configuration of the unlocking operation part for releasing the engagement state of the locking part tends to be complicated, and it takes time to perform the releasing operation, and there is a possibility of causing a problem in durability.

JP 2003-100370 A JP 2009-231069 JP 2011-040246 A

  Accordingly, an object of the present invention is to provide an electrical connector that can improve the operability and durability of use of the unlocking operation portion with a simple configuration.

In the present invention for achieving the above object, there is the board connecting portion to the circuit board is configured to be mounted to a solder joint has been the wiring board, the longitudinal end portion of the insulating housing, the plate A pair of lock members made of metal members are mounted, and each lock member is configured to be fixed to the insulating housing by press-fitting a locking piece protruding from the lock member into the insulating housing. On the other hand, each of the lock members includes a locking lock portion that engages with a terminal portion of the signal transmission medium inserted into the insulating housing and holds the signal transmission medium in a substantially immovable state. together are, an engagement state of the lock portion with respect to the signal transmission medium, in the produced electrical connector so as to cancel the operation of the unlock operation portion, wherein Click member has a arranged locking arm member so as to be elastically displaceable integrally extending from the board connecting portion in a cantilever, halfway position and freedom in the extending direction of the lock arm member At the end position, the locking lock portion and the unlocking operation portion are integrally provided so as to be elastically displaceable, and between the board connecting portion and the locking lock portion of the lock arm member, Two plate-like metal members provided with bent portions that are bent so as to extend in an inverted manner, and the locking pieces protruding from the lock member project with a predetermined plate width The plate width direction of the plate-shaped metal member that constitutes the two locking pieces is set in a direction orthogonal to each other .

According to the present invention having such a configuration, since the board connecting portion, the locking lock portion, and the unlocking operation portion are integrally provided on the lock arm member of the lock member, the inserted signal transmission medium can be held. The action and the release action are performed by the operation of the same member, the structure and operation of the release operation part is facilitated, and the plate-like metal member constituting the two locking pieces provided on the lock member Since the plate width directions are orthogonal to each other, the lock member is firmly fixed, and the durability of use is improved.

Further, since the lock arm member in the present invention is bent so as to be folded between the board connection portion and the locking lock portion, the lock arm member is small even when the electrical connector is downsized. It is possible to secure a sufficient length of the lock arm member in the space, and the operation force of the unlocking operation part provided at the free end position can be reduced to that extent, while the locking lock part is on the bent part side By disposing in, a large holding force is secured by the locking lock portion.

  In the present invention, a conductive contact for signal transmission that contacts the terminal portion of the signal transmission medium is attached to the insulating housing, and the board connecting portion provided on the conductive contact; It is desirable that the board connecting portion provided on the lock arm member is disposed at both opposing edges of the insulating housing.

  According to the present invention having such a configuration, since the entire electrical connector is fixed in a balanced state from both sides by the board connecting portions arranged on both opposite edges, insertion of a signal transmission medium, etc. A strong retention against external force due to is obtained.

  Further, in the present invention, the unlocking operation portions are arranged at both end portions in the longitudinal direction of the insulating housing, and the unlocking operation portions are exposed to the outside at both longitudinal end portions of the insulating housing. It is desirable that a notch is provided.

  According to the present invention having such a configuration, the unlocking operation portion that is exposed outward from the notch portion of the insulating housing when the signal transmission medium is successfully inserted is not inserted into the signal transmission medium. If it is sufficient, it is maintained in a state where it is buried inside the insulating housing. Therefore, whether the signal transmission medium is inserted or not is easily determined.

As described above, the electrical connector according to the present invention has a locking lock portion on the lock arm member of the lock member that can be elastically displaced by extending integrally from the board connection portion soldered to the wiring board in a cantilever manner. And the unlocking operation part are integrally provided, and the holding and releasing actions of the inserted signal transmission medium are the same by providing the board connecting part, the locking lock part and the unlocking operation part integrally on the lock arm member. Since it is configured to improve the fixing strength by making the plate width direction of the two locking pieces protruding from the locking member orthogonal to each other , with a simple configuration, The operability and durability of use of the unlocking operation portion can be improved, and the reliability of the electrical connector can be greatly improved at low cost.

BRIEF DESCRIPTION OF THE DRAWINGS It is an external appearance perspective explanatory drawing showing the electrical connector concerning the 1st Embodiment of this invention. FIG. 2 is an explanatory plan view of the electrical connector shown in FIG. 1. It is front explanatory drawing of the electrical connector represented to FIG.1 and FIG.2. FIG. 4 is a cross sectional explanatory view taken along line IV-IV in FIG. 3. It is the external appearance perspective explanatory view which looked at the locking member used for the electrical connector represented to FIGS. 1-4 from the plane side. It is the external appearance perspective explanatory view which looked at the locking member represented by Drawing 5 from the bottom side. FIG. 5 is a cross-sectional explanatory diagram of both end portions in the connector longitudinal direction illustrating a state immediately before the signal transmission medium is inserted into the electrical connector illustrated in FIGS. 1 to 4. FIG. 8 is a cross-sectional explanatory view of both end portions in the connector longitudinal direction showing a state in which the signal transmission medium is being inserted into the connector from the state of FIG. 7. FIG. 9 is a cross-sectional explanatory view showing a state in which the signal transmission medium is further inserted from the state shown in FIG. 8 to complete the insertion of the signal transmission medium into the electrical connector and the signal transmission medium is locked by the locking lock portion. is there. FIG. 10 is a cross-sectional explanatory diagram illustrating a state in which a release operation is performed from the locked state illustrated in FIG. 9 and the lock member is pressed down. It is an external appearance perspective explanatory view showing the electric connector concerning a 2nd embodiment of the present invention. It is the external appearance perspective explanatory drawing which looked at the locking member used for the electrical connector represented by FIG. 11 from the plane side. FIG. 12 is a cross-sectional explanatory diagram of both end portions in the connector longitudinal direction showing a state in which a signal transmission medium has started to be inserted into the electrical connector shown in FIG. 11. FIG. 14 is a cross-sectional explanatory diagram of both end portions in the connector longitudinal direction showing a state in which the signal transmission medium is being inserted into the connector from the state of FIG. 13. FIG. 15 is a cross-sectional explanatory view showing a state in which the signal transmission medium is further inserted from the state shown in FIG. 14 to complete the insertion of the signal transmission medium into the electrical connector and the signal transmission medium is locked by the locking lock portion. is there. FIG. 16 is a cross-sectional explanatory view showing a state in which a release operation is performed from the locked state illustrated in FIG. 15 and the lock member is pushed down.

  Hereinafter, the present invention is applied to an electrical connector that is mounted on a wiring board and used for electrical connection of a signal transmission medium such as a flexible printed circuit (FPC) or a flexible flat cable (FFC). Embodiments will be described in detail with reference to the drawings.

[Overall Configuration of Electrical Connector According to First Embodiment]
First, the electrical connector 10 according to the first embodiment of the present invention shown in FIG. 1 to FIG. 9 comprises an electrical connector provided with a so-called non-ZIF type one-action auto-lock mechanism. The terminal portion of the signal transmission medium (FPC or FFC or the like) F is passed through the medium insertion port 11a provided at the front end edge (the left end edge in FIG. 4) of the insulating housing 11 and the inside of the insulating housing 11 The signal transmission medium F is automatically locked when inserted to a predetermined position.

[Insulating housing]
At this time, the insulating housing 11 is formed from a hollow frame-like insulating member extending in an elongated shape. The longitudinal width direction of the insulating housing 11 is hereinafter referred to as a “connector longitudinal direction”. The direction in which the terminal portion of the signal transmission medium (FPC, FFC, etc.) F is inserted or removed is referred to as “connector longitudinal direction”.

  The front end edge portion (left end edge portion in FIG. 3) of the insulating housing 11 has a terminal portion of the signal transmission medium F composed of a flexible printed circuit (FPC), a flexible flat cable (FFC) or the like as described above. Is inserted in the connector longitudinal direction so as to be elongated. Further, lock members 12 to be described later are attached to both end portions of the insulating housing 11 in the longitudinal direction of the connector and on both sides of the medium insertion port 11a. Further, the rear end side portion (the right end edge portion in FIG. 4) of the insulating housing 11, that is, the opposite side portion of the medium insertion port 11a in the front-rear direction of the connector, the component mounting port 11b for mounting the conductive contact 13 or the like. However, it is provided so as to be elongated along the longitudinal direction of the connector.

[About conductive contacts]
The conductive contact 13 is formed of a thin plate-shaped metal member having an appropriate shape, and the plurality of conductive contacts 13 are arranged on the front side (the left side in FIG. 4) from the component mounting port 11b on the rear end side of the insulating housing 11. And is arranged in a multipolar manner within the insulating housing 11 at an appropriate interval in the connector longitudinal direction. Each of these conductive contacts 13 is used in a state where it is mounted by solder bonding to a conductive path formed on a main printed wiring board (not shown) for either signal transmission or ground connection. .

  That is, the arrangement position of each conductive contact 13 mounted inside the insulating housing 11 as described above is the signal transmission medium (FPC or FFC or the like) F inserted into the inside of the insulating housing 11 through the medium insertion port 11a. Are set to correspond to the wiring patterns provided in FIG. The wiring pattern provided on the signal transmission medium F is configured by arranging signal transmission conductive paths (signal line pads) or shield conductive paths (shield line pads) at appropriate pitch intervals.

  The configuration of each conductive contact 13 will be described in detail. The conductive contact 13 is formed so as to extend along the front-rear direction of the connector, which is the insertion / removal direction of the signal transmission medium F (left-right direction in FIG. 4). And a board connecting portion in which a portion of the insulating housing 11 protruding rearward from the rear end of the connector is solder-connected to a signal transmission conductive path (signal line pad) formed on a main printed wiring board (not shown). 13a is formed. The substrate connecting portion 13a is connected to a flexible arm portion 13b made of an elongated beam member extending forward from the substrate connecting portion 13a via an upper step.

  That is, the flexible arm portion 13b is bent so as to rise at a substantially right angle at the connection portion with the substrate connecting portion 13a described above, and is further bent at a substantially right angle toward the front side at the rising end. The insulating housing 11 extends in a cantilever manner along the inner wall surface of the upper ceiling plate in the figure. In this way, the flexible arm portion 13b provided on the conductive contact 13 is configured to swing in the vertical direction within the plane of FIG. 4 around the connecting portion with the substrate connecting portion 13a or the vicinity thereof. ing.

  A signal transmission conductive path or shield conductive formed in a signal transmission medium (FPC, FFC, etc.) F is formed on the front end side extension portion (left end side portion in FIG. 4) of the flexible arm portion 13b. Corresponding to one of the paths (wiring patterns), the terminal contact convex portion 13c is provided so as to form a downward projecting shape in the figure. That is, the terminal contact convex portion 13c provided on the conductive contact 13 is a wiring provided on the signal transmission medium F when the signal transmission medium F is inserted into the insulating housing 11 as described above. It is arranged so as to ride on the pattern, and when the signal transmission medium F is inserted to a predetermined final position, it is pressed and electrically connected by the elastic force of the flexible arm portion 13b. It has come to be.

[One-action auto-lock mechanism]
The electrical connector 10 according to the present embodiment is provided with the one-action auto-lock mechanism as described above, but as a premise thereof, the terminal portion of the signal transmission medium (FPC or FFC) F is particularly shown in FIG. As shown in the drawing, engagement positioning portions Fa and Fa formed of notch-shaped concave portions are formed at edge portions on both sides in the width direction. A pair of lock members 12 and 12 are provided on the electric connector 10 side corresponding to the engagement positioning portions Fa and Fa provided on the signal transmission medium F, and the lock members 12 and 12 are locked. The insertion state of the signal transmission medium F is maintained by the action (lock action).

[About locking members]
As described above, the lock members 12 and 12 are disposed at both ends of the insulating housing 11 in the connector longitudinal direction, and when the signal transmission medium (FPC or FFC or the like) F is inserted into the electrical connector 10. A part of each lock member 12, more specifically, a locking lock portion 12 a to be described later, rides on the surface of the signal transmission medium F, whereby the lock member 12 is elastically displaced downward, and further, the lock member 12. The engaging lock portion 12a that forms a part of the signal transmission medium F is pushed up toward the inside of the engagement positioning portion Fa of the signal transmission medium F to be engaged (locked).

  Each lock member 12 at this time is composed of an integral folding structure of a thin metal member as shown in FIGS. 5 and 6, and is placed on a main wiring board (not shown). A base plate 12b having a flat plate shape, a base plate connecting portion 12c soldered to the main wiring board to the base plate 12b, a locking lock portion 12a for holding the signal transmission medium F, A lock release operation part 12e for releasing the engagement state of the stop lock part 12a is integrally provided. Two locking pieces 12d, 12d project from the lock member 12 toward the front of the connector at appropriate positions on the edge of the thin metal member that constitutes the lock member 12, and the engagement between them. The locking members 12 are fixed by press-fitting the stop pieces 12 d and 12 d into the insulating housing 11. Further, the fixed piece 12f is projected from the edge of the base plate 12b toward the inner side of the connector in the longitudinal direction of the connector so as to form a step, and the fixed piece 12f is inserted into the insulating housing 11 The vertical positioning of the lock member 12 is performed.

  Two board connection parts 12c described above are provided for each lock member 12, and one of the board connection parts 12c is provided so as to protrude outward from both ends in the connector longitudinal direction. ing. The other board connecting portion 12c is provided so as to protrude rearward from the rear end portion of the connector. The board connector 12c is solder-bonded to a conductor portion formed on a main wiring board (not shown), whereby the electrical connector 10 is mounted.

  Also, the lock arm member 12g extends integrally from the front edge of the base plate 12b described above, that is, from the edge opposite to the board connecting portion 12c provided on the rear edge so as to form a cantilever shape. I'm out. The lock arm member 12g is formed so as to continue from the board connecting portion 12c on the rear end side through the base plate 12b, and two parts having a substantially U-shaped side surface at a connecting portion with the base plate 12b. Bending portions 12g1 and 12g1 are interposed. Each of the bent portions 12g1 protrudes forward from the front edge of the base plate 12b described above, and then curves so as to be reversed toward the upper side of the base plate 12b. The main body portion of the continuous lock arm member 12g is disposed so as to extend obliquely upward toward the rear side of the connector. The lock arm member 12g having such a cantilever structure is configured to be elastically displaceable around the above-described bent portion 12g1 and its vicinity, and is configured to swing in the vertical direction within the paper surface of FIG. Has been made.

  Further, a locking lock portion 12a and a lock release operation portion 12e are integrally provided at a midway position and a free end position in the extending direction of the cantilevered lock arm member 12g. Among them, the locking lock portion 12a is formed of a hook-like member protruding from the end edge portion of the lock arm member 12g, and protrudes in an approximately triangular shape toward the upper end portion of the connector on the inner side of the lock arm member 12g. It is made of a plate-like member that is bent and formed. That is, the locking lock portion 12a is provided with an inclined guide side extending obliquely downward from the apex portion on the upper end side toward the front side.

  The locking lock portion 12a having such a configuration is configured so that the engagement positioning portion Fa is provided by the elastic force of the lock arm member 12g when the engagement positioning portion Fa provided on the signal transmission medium F is disposed at a position immediately above. It is configured to be pushed up toward the inside of Fa to be in an engaged state, and the insertion state of the signal transmission medium F is maintained by the engaging force of the locking lock portion 12a when in the engaged state. It is made the composition which becomes.

  On the other hand, the unlocking operation portion 12e is formed of a substantially rectangular plate-like member formed by bending a free end portion of the lock arm member 12g, and is a protruding step portion formed on the rear side of the locking lock portion 12a described above. It is provided in a row so as to project upward. Then, when the operator's fingertip is placed on the flat portion of the unlocking operation portion 12e and pressed downward, the locking lock portion 12a is elastically displaced downward together with the lock arm member 12g described above. It has been made into a configuration.

  At this time, both end portions of the insulating housing 11 in the connector longitudinal direction are provided with cutout portions 11c formed so as to cut out the upper surface portion of the insulating housing 11 from the rear end side in a substantially rectangular shape. The unlocking operation part 12e in the initial state which is not made is configured to project upward from the upper surface part of the insulating housing 11 through the notch part 11c and viewed.

  Here, the state from insertion to engagement of the signal transmission medium (FPC or FFC) F will be specifically described. First, as shown in FIGS. 7 and 8, when the signal transmission medium F is inserted into the insulating housing 11 through the medium insertion port 11 a of the insulating housing 11, the insertion side of the signal transmission medium F is inserted. The leading edge comes into contact with the inclined guide side of the locking lock portion 12a provided on the locking member 12, and the locking lock portion 12a rides on the surface of the signal transmission medium F. As a result, the lock arm member 12g of the lock member 12 is elastically displaced so as to be pushed downward about the bent portion 12g1 and the swing fulcrum in the vicinity thereof, and from this state, the terminal portion of the signal transmission medium F is moved backward. When pushed further toward the side, when the engagement positioning portion Fa of the signal transmission medium F moves to a position immediately above the locking lock portion 12a, as shown in FIG. 9, the lock arm member 12g The locking portion 12a is moved so as to be pushed up into the engagement positioning portion Fa of the signal transmission medium F by the elastic restoring force. As a result, the locking portion 12a is engaged with the engagement positioning portion Fa of the signal transmission medium F, and the signal transmission medium F is held so as not to come out.

  Thus, in the middle state before the signal transmission medium (FPC or FFC or the like) F is engaged (locked) by the lock member 12, the lock arm member 12g including the above-described locking lock portion 12a is In this case, the unlocking operation portion 12e is housed in the connector through the notch portion 11c from the upper surface portion of the insulating housing 11, and thereby the lower portion of the lock arm member 12g. The elastic displacement to the side is confirmed. Thereafter, when the signal transmission medium F is brought into an engaged state (locked state) by the lock member 12, the lock release operation part 12e that has been submerged in the insulating housing 11 until then passes through the notch part 11c again. The insulating housing 11 is configured to project upward from the upper surface of the insulating housing 11 and be visually observed.

  On the other hand, as described above, the locking lock portion 12a is engaged with the engagement positioning portion Fa of the signal transmission medium F and the signal transmission medium F is held as shown in FIG. When the unlocking operation is performed by depressing the operation portion 12e, the locking lock portion 12a moves downward against the elastic force of the lock arm member 12g, and the locking lock portion 12a moves to the signal transmission medium F. It is disengaged from the engagement positioning portion Fa, and the engagement state (lock state) by the lock member 12 is released.

  According to the lock member 12 according to the present embodiment having such a configuration, the board connecting portion 12c, the locking lock portion 12a, and the lock release operation portion 12e are integrally provided on the lock arm member 12g. The holding operation and the releasing operation of the signal transmission medium (FPC or FFC, etc.) F performed by the same member are performed. Therefore, the structure and operation of the lock member 12 including the lock release operation portion 12e are facilitated and the durability of use is also improved.

  In particular, the lock arm member 12g in the present embodiment has a bent portion 12g1 that is bent so as to be folded between the board connecting portion 12c and the locking lock portion 12a. Even when the whole is downsized, it is possible to secure a sufficient length of the lock arm member 12g in a small space, and accordingly, the operation force of the unlocking operation portion 12e provided at the free end position is reduced. On the other hand, the holding lock portion 12a is disposed closer to the bent portion 12g1, while a large holding force is ensured by the locking lock portion 12a.

  In addition, the lock release operation portion 12e and the locking lock portion 12a are exposed outward from the notch portion 11c of the insulating housing 11 until the signal transmission medium (FPC or FFC or the like) F is inserted and held. Since the cutout portion 11c that exposes the unlocking operation portion 12e to the outside is provided in the insulating housing 11, the signal transmission is performed. When the insertion of the medium F is insufficient, the unlocking operation portion 12e is maintained in the state of being buried inward from the notch portion 11c of the insulating housing 11, and the insertion operation of the signal transmission medium F is performed. Pass / fail is easily determined.

[Electric Connector According to Second Embodiment]
On the other hand, in the electrical connector 20 according to the second embodiment of the present invention shown in FIGS. 11 to 16 where the same reference numerals are given to the same constituent members as those in the first embodiment described above, the lock member 22 is used. However, it has a structure in which a strip-like member extending in a straight line is appropriately bent, and a lock arm member 22g extending rearward from the board connecting portion 22c arranged at the front end portion is It extends so as to form a belt having a substantially constant width up to the unlocking operation portion 22e arranged at the free edge portion on the end side.

  Further, a locking lock portion 22a corresponding to the engagement positioning portion Fa of the signal transmission medium (FPC or FFC or the like) F is provided at a midway position in the extending direction of the lock arm member 22g. The locking lock portion 22a in the present embodiment is disposed on the rear side of the board connecting portion 22c described above so as to extend obliquely upward via an upper step portion, and is bent so as to form a substantially triangular side surface. It has a molded configuration.

  As described above, in the present embodiment, the board connecting portion 22c provided at the front end portion of the lock arm member 22g is arranged at the connector front end edge portion, and is arranged on the opposite side of the conductive contact 13 from the board connecting portion 13a. ing. That is, according to such an arrangement relationship, the board connecting portion 13 c provided on the conductive contact 13 and the board connecting portion 22 c provided on the lock arm member 22 g are arranged on opposite edges of the insulating housing 11. Thus, by arranging the two board connecting portions 13a and 22c at opposite edges of the insulating housing 11, the entire electrical connector 10 is fixed in a balanced state from both sides, and the signal transmission medium It is possible to obtain a strong retention against external force due to insertion of the

  Furthermore, the unlocking operation portion 22e in the present embodiment is formed of a plate-like member that is continuously provided via an upper protruding portion disposed on the free end side of the lock arm member 22g. Corresponding to the unlocking operation portion 22e, a pair of lock operation cover portions 11d and 11d are provided at both end portions of the rear end portion of the insulating housing 11 in the connector longitudinal direction. Each of these lock operation cover portions 11d extends rearward from the rear end portion of the insulating housing 11 at a position directly above the lock release operation portion 22e provided on the lock member 22, and overlaps with the lock release operation portion 22e. It is made in the arrangement relation. Each of the lock operation cover portions 11d is formed of a relatively wide plate-like member, and the lock operation cover portion 11d formed to be relatively wide has a lock release operation portion 22e having a narrow plate thickness. Are arranged so as to cover the upper surface of the above from above.

  An uneven slip prevention portion is formed on the upper surface of the lock operation cover portion 11d, and the lock member described above is pushed down by the operator's fingertip or the like. Similarly, the lock release operation part 22e of 22 is also pushed downward, whereby the lock arm member 22g and the locking lock part 22a connected to the lock release operation part 22e are pushed downward. As a result, the locking lock portion 22a previously engaged with the engagement positioning portion Fa of the signal transmission medium (FPC, FFC, etc.) F is released downward from the engagement positioning portion Fa, and the signal transmission medium F is free. It becomes a state and it is made the state which can be extracted toward the front side.

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

  For example, in each of the embodiments described above, a flexible printed circuit (FPC) and a flexible flat cable (FFC) are employed as a signal transmission medium fixed to the electrical connector. The present invention can be similarly applied to a case where a medium for use is used.

  Furthermore, although the same shape of conductive contacts is used in the electrical connector according to the above-described embodiment, the present invention can be similarly applied to a structure in which conductive contacts of different shapes are alternately arranged. It is.

  The present invention can be widely applied to a wide variety of electrical connectors used in various electrical devices.

DESCRIPTION OF SYMBOLS 10 Electrical connector 11 Insulation housing 11a Medium insertion port 11b Part attachment port 11c Notch part 12 Lock member 12a Locking lock part 12b Base plate 12c Board | substrate connection part 12d Locking piece 12e Unlocking operation part 12f Fixed piece 12g Lock arm member 12g1 Bending part 13 Conductive contact 13a Substrate connecting part 13b Flexible arm part 13c Terminal contact convex part F Signal transmission medium (FPC or FFC, etc.)
Fa engagement positioning portion 22 lock member 22a locking lock portion 22c board connection portion 22e lock release operation portion 22g lock arm member

Claims (3)

The board connecting portion is soldered to the wiring board and configured to be mounted on the wiring board,
A pair of locking members made of plate-like metal members are attached to both ends in the longitudinal direction of the insulating housing,
Each of these locking members is configured to be fixed to the insulating housing by press-fitting a locking piece protruding from the locking member into the insulating housing.
Each lock member includes a locking portion that engages with a terminal portion of the signal transmission medium inserted into the insulating housing and holds the signal transmission medium in a substantially immobile state,
In the electrical connector configured to release the engagement state of the locking lock portion with respect to the signal transmission medium by operation of the lock release operation portion,
The lock member has a lock arm member disposed so as to be elastically displaceable by extending integrally from the substrate connecting portion in a cantilevered manner,
The locking lock portion and the unlocking operation portion are integrally provided at an intermediate position and a free end position in the extending direction of the lock arm member so as to be elastically displaceable, and the board connection of the lock arm member A bent portion is formed between the portion and the locking lock portion so as to be inverted and extended, and
The locking piece projecting from the lock member is formed from two plate-like metal members that project with a predetermined plate width,
The electrical connector , wherein the plate width direction of the plate-shaped metal members constituting the two locking pieces is set in a direction perpendicular to each other . A conductive contact for signal transmission that contacts the terminal portion of the signal transmission medium is attached to the insulating housing,
2. The board connecting portion provided on the conductive contact and the board connecting portion provided on the lock arm member are arranged at opposite edges of the insulating housing. Electrical connector. The unlocking operation portions are respectively disposed at both end portions in the longitudinal direction of the insulating housing,
The electrical connector according to claim 1, wherein notches that expose the unlocking operation portion to the outside are provided at both ends in the longitudinal direction of the insulating housing.

Images