CN103730768B - Electric connector - Google Patents

Abstract

The present invention provides an electrical connector capable of improving the operability and durability of a lock release operation part (12e) with a simple structure. The locking and locking part (12a) and the unlocking operation part are integrally provided on the locking arm member (12g) integrally extending cantilevered from the board connection part (12c) soldered to the main wiring board and elastically displaceable (12e), by integrally providing the board connecting part (12c), the locking and locking part (12a) and the unlocking operation part (12e) on the lock arm part (12g), the inserted signal transmission medium is controlled by the operation of the same part. (F) play a role in maintaining and releasing.

Description

electrical connector

technical field

The present invention relates to an electrical connector for holding a signal transmission medium by 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 case.

Background technique

In general, various electrical connectors are widely used as mechanisms for electrically connecting various signal transmission media such as flexible printed circuits (FPCs) and flexible flat cables (FFCs) in various electrical devices and the like. For example, as described in Patent Document 1 below, in an electrical connector used for mounting on a printed wiring board, a signal transmission medium made of FPC or FFC is inserted into the inside through the opening on the front end side of the insulating case (insulator). , and thereafter, the operation mechanism (connection operation mechanism) is pushed down and rotated toward the connection action position on the front side or rear side of the connector according to the operator's operation force. As a result, a part of the locking member falls into the engaging portion provided at the terminal portion of the signal transmission medium to become engaged, and the terminal portion of the signal transmission medium is held in a substantially immobile state by the locking member.

In this way, the electrical connector with the operating mechanism is configured to operate the locking member by rotating the operating mechanism between the connection release position and the connection action position, so as to operate the engagement/disengagement of the locking member, but due to the need to communicate with the signal transmission medium ( The insertion operation of FPC, FFC, etc.) requires operating the operating mechanism separately, so there is a problem of working efficiency. Therefore, for example, as shown in the following patent documents 2 and 3, an electrical connector having a so-called one-action automatic locking mechanism having a structure as described below has conventionally been developed. A part of the locking member elastically displaces the signal transmission medium inside the insulating case so as to climb over the signal transmission medium, and then a part of the locking member falls into the engaging portion of the signal transmission medium to engage with it. If the electrical connector with a single-action automatic locking mechanism as described above is used, the signal transmission medium can be kept in a substantially immobile state only by inserting the signal transmission medium to a predetermined position inside the electrical connector, thereby achieving Improve work efficiency.

However, in the single-action automatic locking mechanism adopted in the conventional electrical connector, as mentioned above, it has the advantage of only inserting the signal transmission medium (FPC, FFC, etc.) The structure of the unlocking operation section for determining the engaged state of the locking section tends to be complicated, and the unlocking operation is troublesome and may cause problems in terms of durability in use.

Patent Document 1: Japanese Patent Laid-Open No. 2003-100370

Patent Document 2: Japanese Patent Laid-Open No. 2009-231069

Patent Document 3: Japanese Patent Laid-Open No. 2011-040246

Contents of the invention

Therefore, an object of the present invention is to provide an electrical connector capable of improving the operability and durability of an unlocking operation portion with a simple structure.

In order to achieve the above object, in the present invention, the following structure is adopted: the electrical connector is configured such that the substrate connecting portion is soldered to the wiring substrate and mounted on the wiring substrate, the electrical connector has a locking portion, The locking portion engages with the terminal portion of the signal transmission medium inserted into the insulating case to hold the signal transmission medium in a substantially immovable state, and the electrical connector causes the signal transmission medium to be released by operating the lock release operation portion. The locked state of the locking portion is released, and the electrical connector is characterized in that it has a locking arm member configured to extend integrally in a cantilever shape from the substrate connection portion and to be elastically displaceable. The locking and locking portion and the unlocking operation portion are integrally provided at a midway position and a free end position in the extending direction of the lock arm member so as to be elastically displaceable.

According to the present invention having the above-mentioned structure, since the board connection portion, the locking portion, and the unlocking operation portion are integrally provided on the lock arm member, the inserted signal transmission medium can be held by the operation of the same member. The function and release function, so that the structure and operation of the release operation part become easy, and the durability of use is also improved.

In addition, it is preferable that the lock arm member according to the present invention is bent so as to be folded back between the board connecting portion and the engaging lock portion.

According to the present invention having the above-mentioned structure, even in the case of miniaturizing the electrical connector, the length of the locking arm member can be sufficiently ensured in a small space. The operation force of the operation portion is suppressed to be small, and since the locking portion is disposed on the side of the bending portion, a large holding force can be ensured by the locking portion.

In addition, in the present invention, preferably, a conductive contact for signal transmission that is in contact with a terminal portion of the signal transmission medium is mounted on the insulating case, and the substrate connection portion of the conductive contact and the The substrate connecting portion of the locking arm member is disposed on opposite edge portions of the insulating case.

According to the present invention having the above-mentioned structure, the electrical connector as a whole is fixed in a balanced state from both sides by the substrate connection portions disposed on the opposite edge portions, and therefore, the electrical connector is fixed in a balanced state from both sides. Strong retention can be obtained without external force.

In addition, in the present invention, it is preferable that the unlocking operation parts are respectively arranged at both ends in the longitudinal direction of the insulating case, and the locking and releasing operation parts are provided at both ends in the longitudinal direction of the insulating case. The notch that exposes the operating part to the outside.

According to the present invention having the above-mentioned structure, when the insertion of the signal transmission medium is performed satisfactorily, the unlocking operation portion exposed to the outside from the notch of the insulating case is not fully inserted when the signal transmission medium is inserted. Since the above-mentioned unlocking operation part is maintained in a state buried inside the insulating case, it is easy to determine whether the insertion operation of the signal transmission medium is good or not.

As described above, in the electrical connector of the present invention, the lock arm member integrally extending in a cantilever shape from the substrate connection portion soldered to the wiring substrate and elastically displaceable is integrally provided with the locking locking portion and the unlocking operation portion, By integrally providing the board connecting part, locking and locking part, and unlocking operation part on the lock arm part, the operation of the same part can hold and release the inserted signal transmission medium, so a simple structure can be used. By improving the operability and durability of the unlocking operation portion, the reliability of the electrical connector can be greatly improved at low cost.

Description of drawings

FIG. 1 is an explanatory perspective view showing the appearance of an electrical connector according to a first embodiment of the present invention.

FIG. 2 is an explanatory plan view of the electrical connector shown in FIG. 1 .

FIG. 3 is a front explanatory view of the electrical connector shown in FIG. 1 and FIG. 2 .

Fig. 4 is a cross-sectional explanatory view taken along line IV-IV in Fig. 3 .

5 is an explanatory perspective view of the appearance of the locking member used in the electrical connector shown in FIGS. 1 to 4 viewed from a planar side.

Fig. 6 is an explanatory perspective view showing the appearance of the lock member shown in Fig. 5 viewed from the bottom side.

FIG. 7 is a cross-sectional explanatory view showing both ends in the longitudinal direction of the connector in a state immediately before a signal transmission medium is inserted into the electrical connector shown in FIGS. 1 to 4 .

8 is an explanatory cross-sectional view of both end portions in the longitudinal direction of the connector showing a state in which a signal transmission medium is inserted into the connector from the state of FIG. 7 .

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 , the insertion of the signal transmission medium into the electrical connector is completed, and the signal transmission medium is locked by the locking portion.

10 is a cross-sectional explanatory view showing a state in which a lock member is depressed by performing a release operation from the locked state shown in FIG. 9 .

11 is an explanatory perspective view showing the appearance of an electrical connector according to a second embodiment of the present invention.

FIG. 12 is an explanatory perspective view showing the appearance of a locking member used in the electrical connector shown in FIG. 11 viewed from a planar side.

13 is an explanatory cross-sectional view showing both end portions in the longitudinal direction of the connector in a state where insertion of a signal transmission medium into the electrical connector shown in FIG. 11 is started.

14 is an explanatory cross-sectional view of both end portions in the longitudinal direction of the connector, showing a state in which a signal transmission medium is inserted into the connector from the state of FIG. 13 .

15 is a cross-sectional explanatory view showing a state where the signal transmission medium is further inserted from the state shown in FIG. 14 , the insertion of the signal transmission medium into the electrical connector is completed, and the signal transmission medium is locked by the locking portion.

FIG. 16 is a cross-sectional explanatory view showing a state in which a lock member is depressed by performing a release operation from the locked state shown in FIG. 15 .

Explanation of reference signs

10 electrical connectors

11 insulating shell

11a Media Insertion Port

11b Component mounting port

11c notch

12 locking parts

12a locking part

12b base board

12c Substrate connection part

12d locking film

12e lock release operation part

12f fixed piece

12g locking arm part

12g1 bend

13 Conductive contacts

13a Substrate connection part

13b flexible arm

13c terminal contact convex part

F signal transmission medium (FPC or FFC, etc.)

Fa snap positioning part

22 locking parts

22a locking part

22c board connection part

22e lock release operation part

22g locking arm part

detailed description

Hereinafter, the application of the present invention to electrical connection mounted and used on a wiring board for electrically connecting a signal transmission medium composed of a flexible printed circuit (FPC) or a flexible flat cable (FFC) will be described in detail based on the drawings. implementation of the device.

[About the overall structure of the electrical connector of the first embodiment]

First, the electrical connector 10 of the first embodiment of the present invention shown in FIGS. 1 to 9 is composed of an electrical connector having a so-called non-zero insertion force (NON-ZIF) type single-action automatic locking mechanism, and its configuration is as follows Structure: A regulation that inserts the terminal part of the above-mentioned signal transmission medium (FPC or FFC, etc.) F into the interior of the insulating case 11 through the medium insertion port 11a provided at the front edge portion of the insulating case 11 (the left end portion in FIG. 4 ). Locking of the signal transmission medium F is performed automatically when the position is reached.

[About the insulating case]

At this time, the insulating case 11 is formed of a hollow frame-shaped insulating member extending in an elongated shape. Hereinafter, the longer lateral width direction of the insulating case 11 is referred to as the "connector length direction", and the signal The direction in which the terminal part of the transmission medium (FPC or FFC, etc.) F is inserted or removed is called "connector front-back direction".

At the front edge portion of the insulating case 11 (the left edge portion in FIG. 3 ), a signal signal composed of a flexible printed circuit (FPC) or a flexible flat cable (FFC) as described above is provided elongated along the length direction of the connector. The media insertion opening 11a into which the end portion of the transfer medium F is inserted. Further, lock members 12 , which will be described later, are attached to both end portions in the connector longitudinal direction of the insulating case 11 and to outer portions on both sides of the medium insertion port 11 a. Also, the rear end portion (the right end edge portion in FIG. 4 ) of the insulating case 11, that is, the portion on the side opposite to the above-mentioned medium insertion port 11a in the front-rear direction of the connector, is similarly elongated along the length direction of the connector. Component mounting openings 11 b for mounting conductive contacts 13 and the like are provided.

[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 inserted from the component mounting opening 11b on the rear end side of the insulating case 11 toward the front side (left side in FIG. The interior of the insulating case 11 is arranged in a multi-pole shape at appropriate intervals in the connector longitudinal direction. Each of these conductive contacts 13 is used as either one of signal transmission and ground connection conductive contacts, and is mounted on a conductive circuit formed on a main printed wiring board (not shown) by soldering.

That is, the arrangement positions of the conductive contacts 13 installed inside the insulating case 11 as described above are set to be on the signal transmission medium (FPC or FFC, etc.) F inserted into the inner side of the insulating case 11 through the medium insertion port 11 a. Corresponds to the wiring pattern set. The wiring pattern provided on the signal transmission medium F is a wiring pattern formed by arranging conductive circuits for signal transmission (signal line pads) or conductive circuits for shielding (shield line pads) at appropriate pitches.

The structure of each conductive contact 13 will be specifically described. The conductive contact 13 is formed to extend along the insertion and removal direction of the signal transmission medium F (the left-right direction in FIG. 4 ), that is, the front-to-back direction of the connector. The board connection portion 13 a connected by soldering to the signal transmission conductive circuit (signal line pad) on the main printed wiring board (not shown) is formed. The substrate connection portion 13a is connected to a flexible arm portion 13b formed of an elongated beam member extending forward from the substrate connection portion 13a via an upper step portion.

That is, the flexible arm portion 13b is bent so as to stand substantially at right angles at the connection portion connected to the above-mentioned board connection portion 13a, and is further bent at a substantially right angle toward the front side at the standing end portion, along the The inner wall surface of the top plate on the upper side in the drawing of the insulating case 11 extends so as to form a cantilever shape. As described above, the flexible arm portion 13b provided on the conductive contact 13 is configured to swing vertically within the paper surface of FIG. 4 around the connection portion connected to the substrate connection portion 13a or its vicinity.

And, the protruding portion (the left end side portion in FIG. 4 ) on the front end side of the flexible arm portion 13b is connected to the conductive circuit for signal transmission or the conductive circuit for shielding formed on the signal transmission medium (FPC or FFC, etc.) F (arrangement). Line patterns) are provided with terminal contact protrusions 13 c corresponding to a shape protruding downward in the drawing. That is, the terminal contact protrusions 13c provided on the conductive contacts 13 are arranged to straddle the wiring pattern provided on the signal transmission medium F when the signal transmission medium F is inserted into the insulating case 11 as described above. In this relationship, when the signal transmission medium F is inserted to a predetermined final position, the terminal contact protrusion 13c is pressed against by the elastic force of the flexible arm portion 13b to maintain an electrically connected state.

[About single-action automatic locking mechanism]

The electrical connector 10 of this embodiment has a single-action automatic locking mechanism as described above, and as a premise thereof, at the terminal portion of the signal transmission medium (FPC or FFC, etc.) F, particularly at both sides in the width direction as shown in FIG. 1 The end edge portion is formed with engaging and positioning portions Fa, Fa composed of notch-shaped recesses. In addition, a pair of locking members 12, 12 are provided on the side of the electrical connector 10 corresponding to the engagement positioning portions Fa, Fa provided on the signal transmission medium F, thereby forming a locking action (locking action) using these locking members 12, 12. Function) to maintain the structure of the inserted state of the signal transmission medium F.

[About locking parts]

As mentioned above, the two locking parts 12 and 12 are arranged at both ends of the connector length direction of the insulating housing 11. When the signal transmission medium (FPC or FFC, etc.) F is inserted into the electrical connector 10, each locking part 12 A part, more specifically, the locking and locking portion 12a described later straddles the surface of the signal transmission medium F, whereby the locking member 12 is in a state of elastically displacing downward, thereby constituting a part of locking of the locking member 12. The locking portion 12 a is pushed up toward the inside of the engaging positioning portion Fa of the signal transmission medium F, thereby constituting an engaged state (locked state).

At this time, each lock member 12 is composed of an integrally bent structure of a thin metal member as shown in FIGS. 5 and 6 , and has a flat base plate placed on a main wiring board (not shown). 12b, and with respect to the base plate 12b, there are integrally provided: a board connecting portion 12c soldered to the main wiring board, an engaging lock portion 12a holding the signal transmission medium F, and an engaged state of the unlocking lock portion 12a. The lock release operation part 12e. At the end edge of the sheet metal member constituting the locking member 12 as described above, two locking pieces 12d, 12d are protruded from the locking member 12 toward the front of the connector at appropriate positions. These locking pieces 12d, 12d The locking member 12 is fixed by being pressed into the insulating case 11 . In addition, from the end edge of the base plate 12b toward the inside of the connector in the longitudinal direction of the connector, a fixing piece 12f is protruded in a manner that constitutes a step. positioning.

Two of the above-mentioned board connecting portions 12 c are provided corresponding to each locking member 12 , and the integral board connecting portions 12 c are provided so as to protrude outward from both ends in the length direction of the connector. In addition, the other board connection portion 12c is provided so as to protrude rearward from the connector rear end portion. And these board connection parts 12c are solder-bonded with the conductor part formed in the main wiring board (illustration omitted), and the electrical connector 10 is mounted.

In addition, a lock arm member 12g integrally extends in a cantilever shape from a front edge portion of the base plate 12b, that is, an end edge portion opposite to the base plate connection portion 12c provided on the rear end side. The lock arm member 12g is formed continuously from the base plate connection portion 12c on the rear end side via the base plate 12b, and two bent portions 12g1, 12g1 constituting a substantially U-shape on the side are interposed at the connection portion to the base plate 12b. Each of the bent portions 12g1 protrudes forward from the front end edge of the base plate 12b and is bent so as to be reversed toward the upper side of the base plate 12b. The rear side of the device extends obliquely upward. The lock arm member 12g constituting the above-mentioned cantilever structure is elastically displaceable around the above-mentioned bent portion 12g1 and its vicinity, and is configured to swing vertically within the page of FIG. 7 .

In addition, at the middle position and the free end position of the above-mentioned cantilever-shaped lock arm member 12g in the extending direction, the locking and locking portion 12a and the unlocking operation portion 12e are integrally provided. Among them, the engaging lock portion 12a is constituted by a hook-shaped member protruding from the end edge portion of the lock arm member 12g, and the end edge portion inside the connector of the lock arm member 12g protrudes upward in a substantially triangular shape. Composed of bent plate-shaped parts. That is, the engaging and locking portion 12a is provided with an inclined guide edge extending obliquely downward from the vertex portion on the upper end side toward the front side.

The locking and locking portion 12a having the above-mentioned structure is configured to use the elasticity of the locking arm member 12g when the locking and positioning portion Fa provided on the signal transmission medium F is located directly above. The force is pushed up toward the inside of the engaging positioning portion Fa to be in the engaged state, and the inserted state of the signal transmission medium F is maintained by the engaging force of the engaging locking portion 12a in the fitted state.

On the other hand, the unlocking operation part 12e is formed by bending the free end part of the lock arm member 12g, and is formed by bending the free end part of the lock arm member 12g. The protruding step portions on the side are provided continuously so as to protrude upward. In addition, the operator's fingertip is placed on the flat part of the unlocking operation part 12e and pressed downward, so that the locking and locking part 12a is elastically displaced downward together with the above-mentioned lock arm member 12g. .

At this time, at both end portions in the connector longitudinal direction of the insulating case 11, there are provided notches 11c formed so that the top surface portion of the insulating case 11 is opened into a substantially rectangular shape from the rear end side, and are not pressed down. The unlocking operation portion 12e in the initial state is configured to protrude upward from the top surface portion of the insulating case 11 through the notch portion 11c so as to be seen.

Here, the state from the insertion of the signal transmission medium (FPC, FFC, etc.) F until the engagement is specifically described. First, as shown in FIG. 7 and FIG. 8, if the signal transmission medium F is gradually inserted into the interior of the insulation housing 11 through the medium insertion port 11a of the insulation housing 11, the front end edge of the insertion side of the signal transmission medium F is in line with the set The locking portion 12 a of the locking member 12 abuts against the inclined leading edge, and the locking portion 12 a straddles the surface of the signal transmission medium F. As shown in FIG. As a result, the lock arm member 12g of the lock member 12 is elastically displaced downward by being pressed down around the bent portion 12g1 and its nearby swing fulcrum. When the engaging and positioning portion Fa of the signal transmission medium F moves to the position directly above the engaging and locking portion 12a, as shown in FIG. It moves so as to be pushed into the engagement positioning part Fa of the signal transmission medium F. As a result, the engaging and locking portion 12 a is engaged with the engaging and positioning portion Fa of the signal transmission medium F, and the signal transmission medium F is held so as not to come out.

In this way, when the signal transmission medium (FPC, FFC, etc.) F is in an engaged state (locked state) with the lock member 12, the lock arm member 12g including the above-mentioned locking portion 12a is pressed downward. Elastic displacement. At this time, the unlocking operation part 12e is accommodated inside the connector through the notch 11c from the top surface part of the insulating case 11, thereby confirming the elastic displacement of the lock arm member 12g downward. Thereafter, when the signal transmission medium F is in an engaged state (locked state) engaged by the locking member 12, the unlocking operation part 12e, which has sunk into the interior of the insulating case 11 until now, passes through the notch part 11c again and is released. The upper surface of the insulating case 11 protrudes upward and is seen.

On the other hand, as described above, since the locking portion 12a is engaged with the engaging positioning portion Fa of the signal transmission medium F to hold the signal transmission medium F, as shown in FIG. When the lock release operation is performed by operating the part 12e, the locking part 12a moves downward against the elastic force of the locking arm member 12g, and the locking part 12a is disengaged from the engaging and positioning part Fa of the signal transmission medium F. Based on the locking part 12 The engaged state (locked state) of is released.

According to the lock member 12 of the present embodiment having the above-mentioned structure, the substrate connecting portion 12c, the locking and locking portion 12a, and the unlocking operation portion 12e are integrally provided on the lock arm member 12g, and therefore, the operation of the same member is used to insert the The signal transmission medium (FPC or FFC, etc.) F plays the role of holding and releasing. Therefore, the structure and operation of the lock member 12 including the unlocking operation portion 12e are facilitated, and durability in use is also improved.

In particular, the lock arm member 12g in the present embodiment has the bent portion 12g1 bent so as to be bent between the board connection portion 12c and the locking portion 12a, so even when the entire electrical connector 10 is downsized In the case of a small space, the length of the lock arm member 12g can be sufficiently ensured in a small space. Accordingly, the operation force of the lock release operation part 12e provided at the free end position is suppressed to be small, and by making the locking and locking The portion 12a is disposed close to the bent portion 12g1, and a large holding force can be ensured by the locking portion 12a.

In addition, from the time when the signal transmission medium (FPC or FFC, etc.) F is inserted until it becomes a held state, the lock release operation part 12e is in a state exposed to the outside from the notch part 11c of the insulating case 11 together with the lock part 12a and buried. Since the insulating case 11 is provided with a notch 11c that exposes the unlocking operation part 12e to the outside, when the insertion of the signal transmission medium F is insufficient, the unlocking operation part 12e is moved between the inner states. It is easy to determine whether the insertion operation of the signal transmission medium F is good or not by maintaining the state buried inside the notch portion 11 c of the insulating case 11 .

[About the electrical connector of the second embodiment]

On the other hand, in the electrical connector 20 according to the second embodiment of the present invention shown in Figs. The strip plate-shaped member extending linearly is appropriately bent, and the lock arm member 22g extending rearward from the substrate connection portion 22c arranged at the front end extends to the rear side in a strip shape with a substantially constant width. The lock release operation part 22e is arrange|positioned at the free edge part of a rear end side.

In addition, an engagement lock portion 22 a corresponding to the engagement positioning portion Fa of the signal transmission medium (FPC, FFC, etc.) F is provided at a midway position in the extending direction of the lock arm member 22 g as described above. The locking portion 22a of the present embodiment is configured to extend obliquely upward via an upper step portion on the rear side of the board connection portion 22c described above, and is bent so that its side surface becomes a substantially triangular shape.

As described above, in this embodiment, the board connection 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 side opposite to the board connection portion 13a of the conductive contact 13 . That is, according to the arrangement relationship as described above, the substrate connecting portion 13a provided on the conductive contact 13 and the substrate connecting portion 22c provided on the locking arm member 22g are disposed on opposite edge portions of the insulating case 11, because the insulating case 11 The two substrate connecting parts 13a, 22c are arranged on the opposite two edge parts of the board, therefore, the electrical connector 10 as a whole is fixed in a balanced state from both sides, and can obtain Strong retention.

In addition, the unlocking operation portion 22e in this embodiment is formed of a plate-shaped member provided in succession via an upward protruding step portion disposed on the free end side of the lock arm member 22g, and corresponds to the above-mentioned unlocking operation portion 22e. A pair of locking operation cover portions 11d, 11d are provided at both end portions in the connector length direction of the rear end portion of the insulating case 11. The locking operation cover portions 11d extend rearward from the rear end of the insulating case 11 at a position directly above the unlocking operation portion 22e provided on the lock member 22, and form an arrangement relationship overlapping with the unlocking operation portion 22e. Each lock operation cover portion 11d is formed of a wide plate-shaped member, and the wide lock operation cover portion 11d forms an arrangement relationship such that it covers the top surface of the lock release operation portion 22e having a narrow plate thickness from the upper side. .

Concavo-convex anti-slip portions are formed on the upper surface of the above-mentioned lock operation cover portion 11d, which is pressed downward by the operator's fingertips or the like, and the lock release operation portion 22e of the lock member 22 is Similarly, when it is pressed downward, the lock arm member 22g and the locking lock part 22a provided in succession to the unlocking operation part 22e are pressed downward. As a result, the engaging and locking portion 22a engaged with the engaging and positioning portion Fa of the signal transmission medium (FPC or FFC, etc.) F so far disengages downward from the engaging and positioning portion Fa, and the signal transmission medium F becomes a free state. It is in a state where it can be pulled out to the front side.

As mentioned above, the invention made by this inventor was concretely demonstrated based on embodiment, However, Needless to say, this invention is not limited to the said embodiment, Various deformation|transformation is possible in the range which does not deviate from the summary.

For example, in each of the above-mentioned embodiments, flexible printed circuits (FPC) and flexible flat cables (FFC) are used as the signal transmission medium fixed to the electrical connector. The present invention can also be applied to the ground.

Furthermore, although the electrical connectors of the above-described embodiments use the same-shaped conductive contacts, the present invention can be similarly applied even in a structure in which conductive contacts of different shapes are alternately arranged.

Industrial Applicability

The present invention can be widely applied to various electrical connectors used in various electrical equipment.

Claims (3)

1. an electric connector, consists of substrate connecting portion and engages with wiring substrate scolding tin and be arranged on described wiring substrate,

The pair of locking parts be made up of sheet metal parts are installed in the length direction two end portions of insulation crust,

Described each Lock Part forms the structure be fixed by making the locking piece being arranged at this Lock Part highlightedly be pressed into described insulation crust, on the other hand, described each Lock Part has locking sticking department, this locking sticking department engages with the terminal part of signal transfer medium of the inside being inserted in described insulation crust and described signal transfer medium is remained roughly motionless state, and, described electric connector utilizes the operation being arranged at the latch-release operating portion of described Lock Part that described locking sticking department is removed relative to the fastening state of described signal transfer medium, the feature of described electric connector is,

Described Lock Part has lock arm parts, and this lock arm component configuration becomes from described substrate connecting portion in integrally to extend in cantilever manner and can elastic displacement,

In the half-way of stretching out direction and the free end position of these lock arm parts, described locking sticking department and described latch-release operating portion can be wholely set to elastic displacement, and the described substrate connecting portion on described lock arm parts and between described locking sticking department, be provided with the bend of the mode bending forming of the upset that takes the shape of the letter U during side-looking, and

The locking piece being arranged at described Lock Part is highlightedly by extending on the direction of the direction of insertion along described signal transfer medium from described Lock Part and forming the plate width of regulation and outstanding two sheet metal parts are formed on the direction orthogonal with the direction of insertion of described signal transfer medium

The plate Width forming the sheet metal parts of two described locking pieces is set to mutually orthogonal direction.

2. electric connector as claimed in claim 1, is characterized in that,

Described insulation crust is provided with the conductive contact piece that the signal that contacts with the terminal part of described signal transfer medium transmits,

The substrate connecting portion being arranged at this conductive contact piece and the substrate connecting portion being arranged at described lock arm parts are configured in the two relative edges of described insulation crust.

3. electric connector as claimed in claim 1, is characterized in that,

Described latch-release operating portion configures respectively in the two end portions of the length direction of described insulation crust,

In the length direction two end portions of described insulation crust, be provided with the notch part that described latch-release operating portion is exposed laterally.