EP2717387B1 - Electrical connector - Google Patents
Electrical connector Download PDFInfo
- Publication number
- EP2717387B1 EP2717387B1 EP12187581.9A EP12187581A EP2717387B1 EP 2717387 B1 EP2717387 B1 EP 2717387B1 EP 12187581 A EP12187581 A EP 12187581A EP 2717387 B1 EP2717387 B1 EP 2717387B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lock
- signal transmission
- transmission medium
- insulating housing
- connector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Not-in-force
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/70—Coupling devices
- H01R12/77—Coupling devices for flexible printed circuits, flat or ribbon cables or like structures
- H01R12/771—Details
- H01R12/774—Retainers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/70—Coupling devices
- H01R12/77—Coupling devices for flexible printed circuits, flat or ribbon cables or like structures
- H01R12/79—Coupling devices for flexible printed circuits, flat or ribbon cables or like structures connecting to rigid printed circuits or like structures
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/639—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
Description
- The present invention relates to an electrical connector configured to retain a signal transmission medium by elastic engagement force of a lock member by inserting a terminal part of the signal transmission medium to a predetermined position in an insulating housing.
- Generally, in various electrical devices, etc., various electrical connectors are widely used as means for electrically connecting various signal transmission media such as flexible printed circuits (FPC) and flexible flat cables (FFC). For example, in an electrical connector mounted and used on a printed wiring board like below-described Patent Literature 1, a signal transmission medium composed of, for example, FPC or FFC is inserted from a front-end-side opening of an insulating housing (insulator) into the interior thereof, and an actuator (connection operating means) is then turned by operating force of an operator so as to be pushed down toward a connection working position in the front side or the rear side of the connector. As a result, part of a lock member is put into an engaging part provided at a terminal part of the signal transmission medium to achieve an engaged state, and the terminal part of the signal transmission medium is configured to be retained in an approximately immobile state by the lock member.
- In this manner, an electrical connector having an actuator is configured to operate engagement/detachment of a lock member by carrying out operation to turn the actuator between a disconnecting position and a connection working position, wherein work efficiency is sometimes a problem since the actuator has to be operated separately from the operation to insert the signal transmission medium (for example, FPC, FFC). Therefore, for example, like below-described Patent Literature 2 and 3, an electrical connector provided with a so-called one-action automatic locking mechanism configured so that part of a lock member is elastically displaced so as to be placed over a signal transmission medium inserted into an insulating housing and that the part of the lock member is then put into an engaging part of the signal transmission medium to carry out engagement has been conventionally developed. When an electrical connector provided with such a one-action automatic locking mechanism is used, a signal transmission medium is retained in an approximately immobile state only by inserting the signal transmission medium to a predetermined position in the electrical connector, and work efficiency is improved.
- However, the one-action automatic locking mechanism employed in conventional electrical connectors has an advantage that locking is carried out only by inserting a signal transmission medium (for example, FPC, FFC) into the electrical connector as described above; however, the configuration of a lock cancellation operating part for cancelling an engaged state of a latch lock part tends to be complex, the cancelling operation takes labor, and a problem may be caused in usage durability.
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- Patent Literature 1: Japanese Patent Application Laid-Open No.
2003-100370 - Patent Literature 2: Japanese Patent Application Laid-Open No.
2009-231069 - Patent Literature 3: Japanese Patent Application Laid-Open No.
2011-040246 -
JP2011204509 - It is an object of the present invention to provide an improved and useful electrical connector in which the above-mentioned problems are eliminated.
- In order to achieve the above-mentioned object, there is provided an electrical connector according to claim 1.
- Advantageous embodiments are defined by the dependent claims.
- Advantageously, an electrical connector is configured to be mounted on a wiring board, the wiring board solder-joined with a board connecting part, the electrical connector having a latch lock part engaged with a terminal part of a signal transmission medium inserted in an insulating housing to retain the signal transmission medium in an approximately immobile state, the electrical connector configured so that the engaged state of the latch lock part can be cancelled by operating a lock cancellation operating part; the electrical connector having a lock arm member integrally extending like a cantilever from the board connecting part and disposed so as to be elastically displaceable; and the latch lock part and the lock cancellation operating part are elastically displaceably provided integrally at an intermediate position and a free-end position in an extending direction of the lock arm member.
- Advantageously, the board connecting part, the latch lock part, and the lock cancellation operating part are integrally provided with the lock arm member. Therefore, the retaining action and the cancelling action of the inserted signal transmission medium are carried out by operation of a single member, the structure and operation of the cancellation operating part are simplified, and usage durability is also improved.
- The lock arm member is desired to be bent-formed so as to be folded back between the board connecting part and the latch lock part.
- Advantageously, even when the electrical connector is downsized, a sufficient length of the lock arm member can be ensured in small space, and the operating force of the lock cancellation operating part provided at the free-end position can be correspondingly suppressed to be small. Also, when the latch lock part is disposed in the bent-part side, larger retaining force can be ensured for the latch lock part.
- Advantageously, it is desired that electrically-conductive contact for signal transmission in contact with the terminal part of the signal transmission medium be attached to the insulating housing; and a board connecting part provided in the electrically-conductive contact and the board connecting part provided in the lock arm member be disposed in mutually-opposed both edge parts of the insulating housing.
- Advantageously, by virtue of the board connecting parts disposed at mutually-opposed both edge parts, the entire electrical connector is fixed in a state that is balanced from both sides, and firm retainability can be obtained with respect to external force caused by, for example, insertion of the signal transmission medium.
- Advantageously, it is desired that the lock cancellation operating part be disposed at each of longitudinal-direction both-end parts of the insulating housing; and cut-away parts for exposing the lock cancellation operating parts to outside be provided at the longitudinal-direction both-end parts of the insulating housing.
- Advantageously, if insertion of the signal transmission medium is not enough, the lock cancellation operating part, which is exposed to outside from the cut-away part of the insulating housing when insertion of the signal transmission medium is carried out well, is maintained in the state in which the operating part is buried inside of the insulating housing. Therefore, whether the insertion operation of the signal transmission medium is good or not can be easily determined.
- As described above, in the electrical connector, the latch lock part and the lock cancellation operating part are integrally provided to the elastically-displaceable lock arm member integrally extending like a cantilever from the board connecting part solder-joined with the wiring board. The board connecting part, the latch lock part, and the lock cancellation operating part are integrally provided to the lock arm member so that the retaining action and cancelling action of the inserted signal transmission medium are carried out by operation of a single member. Therefore, operability and usage durability of the lock cancellation operating part can be improved with a simple configuration, and reliability of the electrical connector can be significantly improved at low cost.
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FIG. 1 is an external perspective explanatory view showing an electrical connector according to a first embodiment of the present invention; -
FIG. 2 is a plan explanatory view of the electrical connector shown inFIG. 1 ; -
FIG. 3 is a front explanatory view of the electrical connector shown inFIG. 1 andFIG. 2 ; -
FIG. 4 is a transverse cross-sectional explanatory view taken along a line IV-IV inFIG. 3 ; -
FIG. 5 is an external perspective explanatory view showing, from a planar side, a lock member used in the electrical connector shown inFIG. 1 to FIG. 4 ; -
FIG. 6 is an external perspective explanatory view showing, from a bottom surface side, the lock member shown inFIG. 5 ; -
FIG. 7 is a transverse cross-sectional explanatory view of a connector-longitudinal-direction both-end part showing a state immediately before a signal transmission medium is inserted to the electrical connector shown inFIG. 1 to FIG. 4 ; -
FIG. 8 is a transverse cross-sectional explanatory view of the connector-longitudinal-direction both-end part showing an intermediate state in which the signal transmission medium is being inserted into the connector from the state ofFIG. 7 ; -
FIG. 9 is a transverse cross-sectional explanatory view showing a state in which the signal transmission medium is latched by a latch lock part, wherein the signal transmission medium has been further inserted from the state shown inFIG. 8 , and insertion of the signal transmission medium with respect to the electrical connector has been completed; -
FIG. 10 is a transverse cross-sectional explanatory view showing a state in which a cancelling operation has been carried out from the locked state shown inFIG. 9 and the lock member is push down; -
FIG. 11 is an external perspective explanatory view showing an electrical connector according to a second embodiment of the present invention; -
FIG. 12 is an external perspective explanatory view showing, from a planar side, a lock member used in the electrical connector shown inFIG. 11 ; -
FIG. 13 is a transverse cross-sectional explanatory view of a connector-longitudinal-direction both-end part showing a state in which insertion of a signal transmission medium into the electrical connector shown inFIG. 11 is started; -
FIG. 14 is a transverse cross-sectional explanatory view of the connector-longitudinal-direction both-end part showing an intermediate state in which the signal transmission medium is being inserted into the connector from the state ofFIG. 13 ; -
FIG. 15 is a transverse cross-sectional explanatory view showing a state in which the signal transmission medium is latched by a latch lock part, wherein the signal transmission medium has been further inserted from the state shown inFIG. 14 , and insertion of the signal transmission medium with respect to the electrical connector has been completed; and -
FIG. 16 is a transverse cross-sectional explanatory view showing a state in which a cancelling operation has been carried out from the locked state shown inFIG. 15 , and the lock member is pushed down. - Hereinafter, embodiments in which the present invention is applied to an electrical connector mounted and used on a wiring board in order to establish electrical connection of a signal transmission medium composed of, for example, a flexible printed circuit (FPC) or a flexible flat cable (FFC) will be explained in detail based on drawings.
- An
electrical connector 10 according to a first embodiment of the present invention shown inFIG. 1 to FIG. 9 is an electrical connector provided with a one-action automatic locking mechanism of a so-called non-zif (NON-ZIF) type, which is configured so that the signal transmission medium F is automatically locked when a terminal part of the above described signal transmission medium (for example, FPC or FFC) is inserted to a predetermined position in aninsulating housing 11 through a medium insertion opening 11a provided at a front-end edge part (left-end edge part ofFIG. 4 ) of theinsulating housing 11. - In this case, the
insulating housing 11 is formed of a hollow frame-like insulating member, which is extended to be thin and narrow. The longitudinal width direction of theinsulating housing 11 will be hereinafter referred to as "connector longitudinal direction", and the direction for inserting or detaching the terminal part of the signal transmission medium (for example, FPC or FFC) F will be referred to as "connector front-rear direction". - The medium insertion opening 11a, into which the terminal part of the signal transmission medium F composed of, for example, a flexible printed circuit (FPC) or a flexible flat cable (FFC) as described above is inserted, is provided at a front-end edge part (left-end edge part in
FIG. 4 ) of theinsulating housing 11 so as to be thin and long along the connector longitudinal direction. Lockmembers 12, which will be described later, are attached to both-side outer parts of the medium insertion opening 11a which are connector-longitudinal-direction both-end parts of theinsulating housing 11. Furthermore, at a rear-end-side part (right-end edge part inFIG. 4 ) of theinsulating housing 11, in other words, at a part that is in the side opposite to the above described medium insertion opening 11a in the connector front-rear direction, a part attachment opening 11b for attaching, for example, electrically-conductive contacts 13 are provided so as to be thin and long also along the connector longitudinal direction. - The electrically-
conductive contacts 13 are formed of thin-plate-like metal members forming appropriate shapes. The plurality of electrically-conductive contacts 13 are inserted from the part attachment opening 11b in the rear-end side of the insulatinghousing 11 toward the front side (left side inFIG. 4 ) and are disposed like multiple electrodes with appropriate intervals therebetween in the connector longitudinal direction in the insulatinghousing 11. Each of the electrically-conductive contacts 13 is used for signal transmission or for ground connection in a state in which the electrically-conductive contact is mounted by solder joining on an electrically conductive path formed on a main printed wiring board (illustration omitted). - In other words, the disposed positions of the electrically-
conductive contacts 13 attached in the insulatinghousing 11 in the above described manner are set to correspond to a wiring pattern provided on the signal transmission medium (for example, FPC or FFC) F, which is inserted to the inner side of the insulatinghousing 11 through themedium insertion opening 11a. The wiring pattern provided on the signal transmission medium F is signal-transmitting electrically-conductive paths (signal-line pads) or shielding electrically-conductive paths (shield line pads) disposed at appropriate pitch intervals. - The configuration of each of the electrically-
conductive contacts 13 will be explained in detail. The electrically-conductive contact 13 is formed so as to extend along the connector front-rear direction, which is the inserting/removing direction of the signal transmission medium F (left-right direction inFIG. 4 ). A part projecting from a connector rear end part of the insulatinghousing 11 toward the rear side is formed as aboard connecting part 13a solder-joined with the signal-transmitting electrically-conductive path (signal-line pad) formed on the main printed wiring board (illustration omitted). Theboard connecting part 13a is continued to aflexible arm part 13b, which is composed of a thin and long beam member extending toward the front side from theboard connecting part 13a via an upper step part. - More specifically, the
flexible arm part 13b is formed to be bent so as to rise approximately at a right angle at the part continued to the above describedboard connecting part 13a, is further bent at the rising end approximately at a right angle toward the front side, and is extending so as to form a cantilever shape along an inner wall surface of a ceiling plate of the insulatinghousing 11 in the upper side of the drawing. In this manner, theflexible arm part 13b provided in the electrically-conductive contact 13 is configured to be swung about the part continued to theboard connecting part 13a or the vicinity thereof in the top-bottom direction of the paper surface ofFIG. 4 . - At the front-end side extending part (left-end-side part in
FIG. 4 ) of theflexible arm part 13b, a terminalcontact projecting part 13c is provided so as to form a shape projecting downward in the drawing to correspond to the signal-transmitting electrically-conductive path or the shield electrically-conductive path (wiring pattern) formed on the signal transmission medium (for example, FPC or FFC) F. More specifically, the terminalcontact projecting part 13c provided in the electrically-conductive contact 13 is configured to have an arrangement relation that it is placed over the wiring pattern provided on the signal transmission medium F when the signal transmission medium F is inserted into the insulatinghousing 11 in the above described manner; and, when the signal transmission medium F is inserted to a predetermined final position, the terminalcontact projecting part 13c is configured to be brought into contact therewith with pressure and maintained in an electrically connected state by the elastic force of theflexible arm part 13b. - The
electrical connector 10 according to the present embodiment is provided with the one-action automatic locking mechanism as described above. As a condition therefor, particularly as shown inFIG. 1 , engagement positioning parts Fa and Fa composed of cut-away recessed parts are formed at edge parts in width-direction both sides in the terminal part of the signal transmission medium (for example, FPC or FFC) F. Corresponding to the engagement positioning parts Fa and Fa provided in the signal transmission medium F, the pair oflock members electrical connector 10 side. The insertion state of the signal transmission medium F is configured to be maintained by a latching action (locking action) of thelock members - As described above, both of the
lock members housing 11. When the signal transmission medium (for example, FPC or FFC) F is inserted into theelectrical connector 10, part of each of thelock members 12, more specifically, a later-describedlatch lock part 12a is placed over the surface of the signal transmission medium F; as a result, thelock member 12 becomes a state in which the lock member is elastically displaced downward; and, furthermore, when thelatch lock part 12a constituting part of thelock member 12 is pushed up toward the interior of the engagement positioning part Fa of the signal transmission medium F, an engaged state (locked state) is obtained. - Each of the
lock members 12 of this case is composed of an integral bending structure of a thin-plate metal member particularly as shown inFIG. 5 andFIG. 6 and has a flat-plate-shaped basebottom plate 12b placed on the main wiring board (illustration omitted). With respect to the basebottom plate 12b,board connecting parts 12c solder-joined with the main wiring board, thelatch lock part 12a which retains the signal transmission medium F, and a lockcancellation operating part 12e which cancels the engaged state of thelatch lock part 12a are integrally provided. At an edge part of the thin-plate metal member constituting thelock member 12 like this, two latchingpieces lock member 12 to the connector front direction. When the latchingpieces housing 11, fixation of thelock member 12 is carried out. A fixingpiece 12f is provided to project so as to form a step from an edge part of the basebottom plate 12b toward the inner side of the connector in the connector longitudinal direction. When the fixingpiece 12f is inserted into the insulatinghousing 11, positioning of thelock member 12 in the top-bottom direction is carried out. - The number of the above described
board connecting parts 12c provided for eachlock member 12 is two, and one of theboard connecting parts 12c is provided so as to project from one of the connector-longitudinal-direction both-end parts toward outside. The otherboard connecting part 12c is provided so as to project from the connector rear end part toward the rear. When theboard connecting parts 12c are solder-joined with a conductor part formed on the main wiring board (illustration omitted), mounting of theelectrical connector 10 is carried out. - From a front-end edge part of the above described base
bottom plate 12b, in other words, from an edge part in the opposite side of theboard connecting part 12c provided in the rear end side, alock arm member 12g is integrally extending so as to form a cantilever shape. Thelock arm member 12g is formed so as to be continued from theboard connecting part 12c in the rear end side via thebase bottom plate 12b, and two bent parts 12g1 and 12g1 each forming an approximately U-shape in lateral face are interposed at the part coupled to the basebottom plate 12b. Each of the bent parts 12g1 is once projected toward the front from a front edge of the above described basebottom plate 12b and then curved so as to be reversed in the upper side of the basebottom plate 12b. A main body part of thelock arm member 12g continued from the bent parts 12g1 is disposed so as to extend obliquely upward toward the connector rear side. Thelock arm member 12g having such a cantilever structure is configured to be elastically displaceable about the above described bent parts 12g1 and the vicinities thereof and be swung in the top-bottom direction in the paper surface ofFIG. 7 . - At an intermediate position and a free-end position of the above described cantilever-shaped
lock arm member 12g in the extending direction thereof, thelatch lock part 12a and the lockcancellation operating part 12e are integrally provided. Among them, thelatch lock part 12a is composed of a hook-shaped member projecting from an edge part of thelock arm member 12g and is composed of a plate-like member formed by bending the connector-inner-side edge part included in thelock arm member 12g so that it projects upward in an approximately triangular shape. In other words, thelatch lock part 12a is provided with a tilted guiding side which is extending obliquely downward from an upper-end-side apex part toward the front side. - The
latch lock part 12a having such a configuration is configured to be pushed up toward the interior of the engagement positioning part Fa by the elastic force of thelock arm member 12g and obtain an engaged state when the engagement positioning part Fa provided in the above described signal transmission medium F is disposed at an immediately-above position; and the inserted state of the signal transmission medium F is configured to be retained by the engaging force of thelatch lock part 12a generated when the mating state is obtained. - On the other hand, the lock
cancellation operating part 12e is composed of a plate-like member formed by bending the free-end part of thelock arm member 12g and having an approximately rectangular shape in a plane, and the lockcancellation operating part 12e is continuously provided so as to project to the upper side via a projected step part formed in the rear side of the above describedlatch lock part 12a. When a finger tip of an operator is placed on a flat-surface part of the lockcancellation operating part 12e and presses it downward, thelatch lock part 12a is configured to be elastically displaced downward together with the above describedlock arm member 12g. - In this case, cut-away
parts 11c formed so as to cut-away upper surface parts of the insulatinghousing 11 in approximately rectangular shapes from the rear side are provided at connector-longitudinal-direction both-end parts of the insulatinghousing 11. The lockcancellation operating part 12e in an initial state, in which the operating part is not pushed down, is configured to project upward from the upper surface part of the insulatinghousing 11 through the cut-awaypart 11c and be visually checked. - The state from insertion to engagement of the signal transmission medium (for example, FPC or FFC) F will be explained in detail. First, as shown in
FIG. 7 andFIG. 8 , when the signal transmission medium F is inserted into the insulatinghousing 11 through themedium insertion opening 11a of the insulatinghousing 11, an inserting-side distal-end edge part of the signal transmission medium F abuts the tilted guiding side of thelatch lock part 12a provided in thelock member 12, and thelatch lock part 12a is placed over the surface of the signal transmission medium F. As a result, thelock arm member 12g of thelock member 12 is elastically displaced about the bent parts 12g1 and a swing pivotal point in the vicinity thereof so as to be pushed down to the lower side. When the terminal part of the signal transmission medium F is further pushed in toward the rear side in this state, as shown inFIG. 9 , thelatch lock part 12a is moved by the elastic returning force of thelock arm member 12g so as to be pushed up into the engagement positioning part Fa of the signal transmission medium F when the engagement positioning part Fa of the signal transmission medium F is moved to the position immediately above thelatch lock part 12a. As a result, thelatch lock part 12a obtains an engaged state with respect to the engagement positioning part Fa of the signal transmission medium F, and the signal transmission medium F is maintained so as not to be removed. - In the intermediate state before the signal transmission medium (for example, FPC or FFC) F is caused to be in the engaged state (locked state) by the
lock member 12 in this manner, thelock arm member 12g including the above describedlatch lock part 12a is elastically displaced so as to be pushed downward. In this process, the lockcancellation operating part 12e is stored from the upper-surface part of the insulatinghousing 11 into the connector through the cut-awaypart 11c so that the downward elastic displacement of thelock arm member 12g can be checked. Then, when the signal transmission medium F becomes the state in which the medium is caused to be in the engaged state (locked state) by thelock member 12, the lockcancellation operating part 12e, which has been previously dropped in the insulatinghousing 11, is configured to project again upward from the upper surface of the insulatinghousing 11 through the cut-awaypart 11c and be visually checked. - On the other hand, when a lock cancelling operation is carried out by pushing down the lock
cancellation operating part 12e as shown inFIG. 10 in the state in which thelatch lock part 12a is engaged with the engagement positioning part Fa of the signal transmission medium F to retain the signal transmission medium F in the above described manner, thelatch lock part 12a is moved downward against the elastic force of thelock arm member 12g, thelatch lock part 12a is detached from the engagement positioning part Fa of the signal transmission medium F, and the engaged state (locked state) of thelock member 12 is cancelled. - According to the
lock member 12 according to the present embodiment having such a configuration, theboard connecting part 12c, thelatch lock part 12a, and the lockcancellation operating part 12e are integrally provided to thelock arm member 12g; therefore, the retaining action and the cancelling action of the inserted signal transmission medium (for example, FPC or FFC) F are carried out by the operations of a single member. Therefore, the structure and operation of thelock member 12 including the lockcancellation operating part 12e are simplified, and usage durability is also improved. - Particularly, the
lock arm member 12g in the present embodiment has the bent parts 12g1, which are bent-formed so as to be folded back between theboard connecting part 12c and thelatch lock part 12a. Therefore, even when the entireelectrical connector 10 is downsized, a sufficient length of thelock arm members 12g can be ensured in small space, and the operating force of the lockcancellation operating part 12e provided at the free-end position can be correspondingly suppressed to be small. Also, when thelatch lock part 12a is disposed to be close to the bent parts 12g1, larger retaining force can be ensured for thelatch lock part 12a. - Until the retained state is obtained after the signal transmission medium (for example, FPC or FFC) F is inserted, the lock
cancellation operating part 12e is moved together with thelatch lock part 12a between a state in which thy are exposed to outside from the cut-awaypart 11c of the insulatinghousing 11 and an inside buried state. The cut-awaypart 11c from which the lockcancellation operating part 12e is exposed to outside is provided in the insulatinghousing 11. Therefore, if insertion of the signal transmission medium F is not enough, the lockcancellation operating part 12e is maintained in the state in which the operating part is buried inside of the cut-awaypart 11c of the insulatinghousing 11, and whether the insertion operation of the signal transmission medium F is good or not can be easily determined. - On the other hand, an
electrical connector 20 according to a second embodiment of the present invention shown inFIG. 11 to FIG. 16 , in which the constituent members which are the same as those of the above described first embodiment are denoted by the same reference numerals, has a structure in which each oflock members 22 is formed by appropriately bending a linearly-extending belt-like member. Alock arm member 22g extending to the rear side from aboard connecting part 22c disposed in a front-end part is extending to a lockcancellation operating part 22e disposed in a free-end edge part in the rear side so as to form a belt-like shape having an approximately constant width. - Also, at an intermediate position of the extending direction in the
lock arm member 22g as described above, alatch lock part 22a corresponding to the engagement positioning part Fa of the signal transmission medium (for example, FPC or FFC) F is provided. Thelatch lock part 22a in the present embodiment is disposed so as to extend obliquely upward to the rear side of the above describedboard connecting part 22c via an upper step part and is configured to be bent-formed to form an approximately triangular shape in a lateral face. - As described above in the present embodiment, the
board connecting part 22c provided in the front-end part of thelock arm member 22g is disposed in a connector front-end edge part and is disposed in the opposite side of theboard connecting part 13a of the electrically-conductive contact 13. In other words, by virtue of such an arrangement relation, theboard connecting parts 13c provided in the electrically-conductive contacts 13 andboard connecting parts 22c provided in thelock arm members 22g are disposed in mutually-opposed both edge parts of the insulatinghousing 11. Since both of theboard connecting parts housing 11, the entireelectrical connector 10 is fixed in a state that is balanced from both sides, and firm retainability can be obtained with respect to external force caused by, for example, insertion of the signal transmission medium. - Furthermore, the lock
cancellation operating part 22e in the present embodiment is formed of a plate-like member continuously provided via an upper-side projected step part disposed in a free-end side of thelock arm member 22g. Corresponding to the lockcancellation operating part 22e as described above, a pair of lockoperation cover parts housing 11. At a position immediately above the lockcancellation operating part 22e provided in thelock member 22, each of the lockoperation cover part 11d is extending from the rear end part of the insulatinghousing 11 to the rear so that an arrangement relation overlapped with the lockcancellation operating part 22e is obtained. Each of the lockoperation cover parts 11d is formed of a comparatively-wide plate-like member, and the comparatively-wide lockoperation cover part 11d is in an arrangement relation so as to cover, from the upper side, the upper surface of the lockcancellation operating part 22e having a narrow plate thickness. - An irregular-shaped anti-slipping part is formed on the upper surface of the lock
operation cover part 11d as described above. When the lockoperation cover part 11d is pushed downward, for example, by a finger tip of an operator, the lockcancellation operating part 22e of the above describedlock member 22 is similarly pushed downward, and, as a result, thelock arm member 22g and thelatch lock part 22a continued to the lockcancellation operating part 22e are pushed downward. As a result, thelatch lock part 22a, which has been previously engaged with the engagement positioning part Fa of the signal transmission medium (for example, FPC or FFC) F is detached downward from the engagement positioning part Fa, and the signal transmission medium F becomes a free state to become a state in which the medium can be removed toward the front side. - Hereinabove, the invention accomplished by the present inventor has been explained in detail based on the embodiments. However, the present invention is not limited to the above described embodiments, and it goes without saying that various modifications can be made within a range not departing from the scope of the appended claim.
- For example, in the above described embodiments, flexible printed circuits (FPC) and flexible flat cables (FFC) are employed as the signal transmission media to be fixed to the electrical connector. However, the present invention can be similarly applied also to the case in which other signal transmission media, etc. are used.
- Furthermore, the electrically-conductive contacts having a single shape are used in the electrical connector according to the above described embodiments. However, the present invention can be similarly applied also to a structure in which electrically-conductive contacts having mutually different shapes are alternately disposed.
- The present invention can be widely applied to various electrical connectors used in various electrical devices.
Reference Signs List
Claims (1)
- An electrical connector (10) configured to be mounted on a wiring board, the electrical connector (10) having:a plurality of electrically-conductive contacts (13) being disposed with appropriate intervals therebetween in the connector longitudinal direction in an insulating housing (11), the electrically-conductive contacts (13) have an arrangement relation that when a signal transmission medium (F) is inserted into the insulating housing (11), the electrically-conductive contacts (13) are brought into contact and electrically connected with wiring patterns provided on the signal transmission medium (F), anda pair of lock members (12) disposed at a connector-longitudinal-direction both-end parts of the insulating housing (11), each of the lock members (12) including a latch lock part (12a) to be engaged with a terminal part of the signal transmission medium (F) inserted in the insulating housing (11) in a front-rear direction to retain the signal transmission medium (F) in an approximately immobile state,the electrical connector (10) configured so that the engaged state of the latch lock part (12a) can be cancelled by operating a lock cancellation operating part (12e) which is integrally provided to the lock member (12), whereinthe lock member (12) comprising:a base bottom plate (12b) having flat-plate shape to be placed on the wiring board,a board connecting part (12c) integrally provided to the base bottom plate (12b) so as to be solder-joined with the wiring board,a fixing piece (12f) integrally provided to the base bottom plate (12b) so as to be inserted into the insulating housing (11) and to carry out positioning of the lock member (12) in the top-bottom direction perpendicular to the wire board,a lock arm member (12g) integrally extending like a cantilever from the board connecting part (12c) and disposed so as to be elastically displaceable in the top-bottom direction; wherein the fixing piece (12f) extends from an edge part of the base bottom plate (12b) toward the inner side of the connector in the connector longitudinal direction,wherein the lock arm member (12g) is bent-formed via at least one bent part (12gl) coupled to the base bottom plate (12b) forming in an approximately U-shape in lateral face so as to be reversed and extending between the board connecting part (12c) and the latch lock part (12a),wherein cut-away parts (11c) for exposing the lock cancellation operating parts (12e) to outside are provided at the longitudinal-direction both-end parts of the insulating housing (11),characterized in that the latch lock part (12a) and the lock cancellation operating part (12e) are elastically displaceably provided integrally at an intermediate position and a free-end position in an extending direction of the lock arm member (12g),wherein the lock cancellation operating part (12e) is composed of a plate-like member formed by bending the free-end part of the lock arm member (12g) and having an approximately rectangular shape in a plane, and the lock cancellation operating part (12e) is continuously provided so as to project to the upper side via a projected step part formed in the rear side of the latch lock part (12a),wherein the lock arm member (12g) is bent-formed via two bent parts (12gl) coupled to the base bottom plate (12b) forming in an approximately U-shape in lateral face so as to be reversed and extending between the board connecting part (12c) and the latch lock part (12a), andwherein two latching pieces (12d) are provided at appropriate positions of an edge part of the lock member (12) to project from the lock member (12) to the connector front direction of the signal transmission medium (F), so that fixation of the lock member (12) is carried out when the latching pieces (12d) are press-fitted into the insulating housing (11), wherein the fixing piece (12f) forms a step between the base bottom plate (12b) in the top-bottom direction perpendicular to the wire board,wherein the latch lock part (12a) is arranged at a front side position closer to the bent part (12gl) from the middle position between the bent part (12g1) and the lock cancellation operating part (12e) so that the distance from the bent part (12gl) to the lock cancellation operating part (12e) is larger than that from the bent part (12g1) to the latch lock part (12a).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP12187581.9A EP2717387B1 (en) | 2012-10-08 | 2012-10-08 | Electrical connector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP12187581.9A EP2717387B1 (en) | 2012-10-08 | 2012-10-08 | Electrical connector |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2717387A1 EP2717387A1 (en) | 2014-04-09 |
EP2717387B1 true EP2717387B1 (en) | 2018-08-01 |
Family
ID=47080258
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12187581.9A Not-in-force EP2717387B1 (en) | 2012-10-08 | 2012-10-08 | Electrical connector |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP2717387B1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6015971B2 (en) * | 2014-10-02 | 2016-10-26 | 第一精工株式会社 | Plug connector |
JP6887666B2 (en) * | 2017-03-24 | 2021-06-16 | 日本圧着端子製造株式会社 | Electrical connector |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3605586B2 (en) | 2001-09-25 | 2004-12-22 | 日本圧着端子製造株式会社 | Flexible board connector |
JP2009231069A (en) | 2008-03-24 | 2009-10-08 | Honda Tsushin Kogyo Co Ltd | Locked connector for fpc |
JP4915879B2 (en) | 2009-08-10 | 2012-04-11 | 株式会社アイペックス | Connector device |
JP4982770B2 (en) * | 2009-12-04 | 2012-07-25 | 第一精工株式会社 | Connector device |
JP5146701B2 (en) * | 2010-07-13 | 2013-02-20 | 第一精工株式会社 | Connector device |
JP5099387B2 (en) * | 2010-09-09 | 2012-12-19 | 第一精工株式会社 | Connector device |
JP5195863B2 (en) * | 2010-10-12 | 2013-05-15 | 第一精工株式会社 | Electrical connector |
JP5207004B2 (en) * | 2011-02-22 | 2013-06-12 | 第一精工株式会社 | Connector device |
JP5344059B2 (en) * | 2011-03-18 | 2013-11-20 | 第一精工株式会社 | Electrical connector |
-
2012
- 2012-10-08 EP EP12187581.9A patent/EP2717387B1/en not_active Not-in-force
Also Published As
Publication number | Publication date |
---|---|
EP2717387A1 (en) | 2014-04-09 |
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