EP1365483B1 - Elektrischer Steckverbinder - Google Patents

Elektrischer Steckverbinder Download PDF

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Publication number
EP1365483B1
EP1365483B1 EP20030011076 EP03011076A EP1365483B1 EP 1365483 B1 EP1365483 B1 EP 1365483B1 EP 20030011076 EP20030011076 EP 20030011076 EP 03011076 A EP03011076 A EP 03011076A EP 1365483 B1 EP1365483 B1 EP 1365483B1
Authority
EP
European Patent Office
Prior art keywords
receptacle
relay
electrical
electronic part
resilient locking
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.)
Expired - Lifetime
Application number
EP20030011076
Other languages
English (en)
French (fr)
Other versions
EP1365483A1 (de
Inventor
Keiichi Sumitomo Wiring Systems Ltd. Nakamura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Wiring Systems Ltd
Original Assignee
Sumitomo Wiring Systems Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from JP2002148202A external-priority patent/JP3891038B2/ja
Priority claimed from JP2002155936A external-priority patent/JP2003346619A/ja
Application filed by Sumitomo Wiring Systems Ltd filed Critical Sumitomo Wiring Systems Ltd
Publication of EP1365483A1 publication Critical patent/EP1365483A1/de
Application granted granted Critical
Publication of EP1365483B1 publication Critical patent/EP1365483B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01R13/627—Snap or like fastening
    • H01R13/6271—Latching means integral with the housing

Definitions

  • the present invention relates to a connector connectable with an electrical and/or electronic part such as a relay, a fuse, a resistor, a processor or the like.
  • a relay mounting portion having a relay mounting construction disclosed in Japanese Unexamined Patent Publication No. 9-35605 is known as the one corresponding to this type of connector.
  • a relay mounting portion 1 is such that a relay 5 is fittable between a pair of outer walls 2, and two pairs of resilient locking pieces 3 stand from a bottom wall 4 inside the outer walls 2 while being spaced apart from the outer walls 2.
  • a locking claw 7 engageable with a locking projection 6 provided on the relay 5 is formed at the leading end of each resilient locking piece 3.
  • the resilient locking pieces 3 are resiliently deformed outward in the process of inserting the relay 5 into the relay mounting portion 1, and resiliently return to engage the locking claws 7 with the locking projection 6 upon moving over the locking projection 6.
  • the relay 5 is prevented from detachment from the relay mounting portion 1. Further, the outer walls 2 prevent the excessive resilient deformation of the resilient locking pieces 3 since being located at such positions as to be brought into abutment against the resilient locking pieces 3 when the resilient locking pieces 3 are resiliently deformed outward.
  • the relay mounting portion 1 tends to be large as a whole. Although such a problem can be solved by deleting the outer walls 2, it is not reasonable because a function of preventing the excessive resilient deformation of the resilient locking pieces 3 is lost.
  • a connector of this type has been conventionally comprised of a receptacle into which a relay is fittable through an opening formed in the front surface thereof, and a terminal accommodating portion continuously extending backward from the back surface of the receptacle for accommodating terminal fittings, and resilient locking pieces each having a locking claw at its leading end are resiliently deformably provided at a surrounding wall of the receptacle. Window holes used to grip the relay are formed in the surrounding wall of the receptacle by cutting. When the relay is fitted through the opening of the receptacle, it is inserted while resiliently deforming the resilient locking pieces outward.
  • US-A-6 126 474 discloses a connector having a receptacle into which an electrical part is insertable. Further, this connector includes a resilient locking piece engageable with the electrical part and a deformation preventing portion to prevent an excessive deformation of the resilient locking piece.
  • US-A-5 980 297 discloses a connector having a locking piece and a deformation preventing portion integrally molded with the connector housing.
  • JP-10 050 404 discloses a connector for PC card which connector comprises a hole into which a drawing jig is insertable to facilitate drawing of a card at the time of inspection.
  • the resilient locking piece formed between a pair of slits formed in the receptacle to extend substantially backward from the front end of the receptacle.
  • a connector which can avoid becoming larger as a whole while preventing the excessive resilient deformation of a resilient locking piece, thus increasing operability.
  • the excessive deformation preventing portion is formed to bulge out so as to cover the outer side of one slit.
  • the resilient locking piece includes a main body provided with a locking claw for locking the electrical part substantially at a proper connection position in the receptacle, and an inner projection bulges out substantially in widthwise direction (or in a direction substantially lying in the plane of the resilient locking piece or of the wall in which the resilient locking piece are provided) from the main body, preferably has an extended locking surface substantially in flush with a locking surface of the locking claw and can be brought substantially into abutment against the inner surface of the excessive deformation preventing portion after passing the one slit when the resilient locking piece is resiliently deformed outward or away from the electric/electronic part or the receptacle.
  • the inner projection bulges out in widthwise direction from the main body of the resilient locking piece and can be brought substantially into abutment against the inner surface of the excessive deformation preventing portion after passing the slit when the resilient locking piece is resiliently deformed outward.
  • the outward excessive resilient deformation of the resilient locking piece can be prevented.
  • the inner projection has the extended locking surface substantially in flush with the locking surface of the locking claw, an area of engagement of the locking claw with the electrical/electronic part is increased, with the result that the electrical/electronic part can be strongly locked.
  • the resilient locking piece includes a main body provided with a locking claw for locking the electrical/electronic part at a proper connection position in the receptacle, and an outer projection bulges out substantially in widthwise direction (or in a direction substantially lying in the plane of the resilient locking piece or of the wall in which the resilient locking piece are provided) from the main body, is formed to at least partly cover the outer side of one slit, preferably the other slit as the one covered by the excessive deformation preventing portion, and can be brought substantially into abutment against the outer surface of the receptacle as the excessive deformation preventing portion when the resilient locking piece is resiliently deformed inward.
  • the outer projection bulges out in widthwise direction from the main body of the resilient locking piece and can be brought into abutment against the outer surface of the receptacle as the excessive deformation preventing portion when the resilient locking piece is resiliently deformed inward.
  • the inward excessive resilient deformation of the resilient locking piece can be prevented.
  • a connector comprising a housing including a terminal accommodating portion accommodating one or more terminal fittings, and a receptacle and into which a terminal-provided electrical/electronic part such as a relay is at least partly insertable to electrically connect the one or more terminal fittings and respective terminals of the electrical/electronic part, wherein at least one hole through which the front surface and/or front edge of the electrical/electronic part with respect to inserting direction can be seen is formed at a position of a surrounding wall of the receptacle near the terminal
  • a connector in which an electric/electronic part such as a relay can be detached with good operability and whether or not the electric/electronic part such as the relay is connected at a substantially proper position can be preferably judged.
  • a connector comprising a housing including a terminal accommodating portion accommodating terminal fittings, and a receptacle which is open substantially forward at the front surface of the terminal accommodating portion and into which a terminal-provided electrical part such as a relay is insertable to electrically connect the terminal fittings and terminals of the electrical part, wherein a hole through which the front surface of the electrical part with respect to inserting direction can be seen is formed at a position of a surrounding wall of the receptacle near the terminal accommodating portion.
  • the electrical/electronic part can be detached from the receptacle, for example, by at least partly inserting a jig through this hole, thrusting it between the front surface of the electrical/electronic part with respect to inserting direction and the front surface of the terminal accommodating portion and successively forcibly displacing it.
  • a series of operations can be performed with good operability.
  • whether or not the electrical/electronic part is connected at a proper position can be preferably judged or detected by seeing the position of the front surface of the electrical part with respect to inserting direction through this hole.
  • the electrical/electronic part is inserted up to a position where the electrical/electronic part can substantially abut against the front surface of the terminal accommodating portion, and at least one insertion opening through which a detaching jig is at least partly insertable to detach the electrical/electronic part is so formed in the surrounding wall of the terminal accommodating portion preferably as to be open in the front surface of the terminal accommodating portion and substantially communicate with the hole.
  • the insertion opening through which the detaching jig for the electrical part is insertable is so formed as to be open in the front surface of the terminal accommodating portion and communicate with the hole, the electrical part can be lifted by the jig and easily detached from the receptacle if the jig is inserted through this insertion opening and successively forcibly displaced. In such a case, the jig can be prevented from damaging the electrical part during insertion since being inserted through the insertion opening without interfering with the electrical part.
  • the receptacle is formed at the front end of the terminal accommodating portion via a stepped portion, the electrical/electronic part is inserted up to a position where the electrical/electronic part can substantially abut against the front surface of the terminal accommodating portion, and preferably such a pedestal as to serve as a supporting point of the detaching jig operated or pivoted to detach the electrical/electronic part projects at or near a part of the stepped portion located in or adjacent to the hole.
  • the electrical/electronic part can be easily lifted by placing an operating portion of the jig on the pedestal and forcibly displacing the jig with the pedestal as a supporting point of leverage.
  • operability is good.
  • the electrical/electronic part can be easily detached only by exerting a small force.
  • At least one pedestal which bulges out on a portion of the terminal accommodation portion near the hole can serve as a supporting point of a detaching jig operated to detach the electric/electronic part.
  • FIGS. 1 to 13 A first embodiment in which the present invention is applied to a connector for a relay (as a preferred electric and/or electronic element) to be used in a vehicle is described with reference to FIGS. 1 to 13.
  • Identified by 10 is a connector.
  • This con-nector 10 is comprised of a terminal accommodating portion 12 for accommodating one or more female terminal fittings 11 (see FIG. 12, unillustrated in other figures) and a receptacle 20 provided before or adjacent to the terminal accommodating portion 12 and substantially in the form of a rectangular tube opening forward.
  • One or more cavities 13 are formed to penetrate the terminal accommodating portion 12 substantially along longitudinal direction, and the female terminal fittings 11 are at least partly insertable thereinto.
  • the cavities 13 of this embodiment are arranged at one or more stages, preferably at three upper, middle and lower stages in FIG. 2. There are a total of e.g. five cavities 13, one at each of the upper and middle stages and three transversely arranged substantially side by side at the lower stage.
  • a resiliently deformable locking portion 14 is formed preferably in each cavity 13 and engageable with the female terminal fitting 11 to lock it.
  • the receptacle 20 is formed to have such shape and size that a relay 50 (as a preferred electric/electronic element) is at least partly insertable thereinto through an insertion opening formed in the front surface of the receptacle 20.
  • the relay 50 at least partly mountable into this receptacle 20 is substantially in the form of a rectangular parallelepiped as a whole and one or more relay terminals 51 project at the bottom surface thereof at positions substantially corresponding to the female terminal fittings 11 inserted into the cavities 13.
  • each recess 22 is provided with guiding edges or edge portions 23 (a pair of left and right or lateral guiding edges 23 in FIG. 3) for guiding the insertion of a detecting jig 60 for checking an electrical connection, and stopping edges 24 with which an engaging projection 63 of the detecting jig 60 comes substantially into contact to stop the detecting jig 60 is provided at an end position of each guiding edge 23.
  • the detecting jig 60 is comprised of an operable portion 61, preferably substantially in the form of a rectangular parallelepiped, and a main body 62 extending forward (or toward the connector 10) from the front surface of the operable portion 61.
  • the main body 62 has the outer surfaces of its rear portion, preferably of its rear half, shaped such that the rear portion, preferably the rear half, is at least partly fittable into the receptacle 20 with the outer surfaces thereof held substantially in close contact with the inner surfaces of the receptacle 20.
  • the engaging projection 63 which can be brought substantially into sliding contact with the corresponding recess 22 of the receptacle 20 projects from each of the left and right or lateral side surfaces of the rear portion/half.
  • One or more detecting pins 64 engageable with the respective locking portions 14 in the cavities 13 project from the front surface of the main body 62, and one or more electrically conductive connection detecting pins 66 which are shorter than the detecting pins 64 and can be brought into contact with the female terminal fittings 11 project near the respective detecting pins 64.
  • Each detecting pin 64 is provided with a leading-end flat portion 65, which is at least partly insertable into an insertion space Q defined between the locking portion 14 and the inner surface of the cavity 13 when the locking portion 14 is engaged with the female terminal fitting 11 at a proper insertion position (see FIG. 13).
  • the operable portion 61 is or can be gripped or manipulated to at least partly insert the detecting jig 60 into the receptacle 20 through the insertion opening and push it to the back of the receptacle 20 while holding the engaging projections 63 substantially in sliding contact with the guiding edges 23.
  • the operable portion 61 is or can be gripped or manipulated to at least partly insert the detecting jig 60 into the receptacle 20 through the insertion opening and push it to the back of the receptacle 20 while holding the engaging projections 63 substantially in sliding contact with the guiding edges 23.
  • the leading-end flat portion 65 of the detecting pin 64 has the leading end surface thereof substantially abutted against the locking portion 14, thereby hindering any further insertion of the detecting jig 60.
  • the front end surfaces of the engaging projections 63 do not come into contact with the stopping edges 24 of the recesses 22.
  • the connection detecting pin(s) 66 electrically connectable with the female terminal fitting(s) 11 without reaching the leading end(s) of the female terminal fitting(s) 11. In this way, whether or not the female terminal fittings 11 are properly inserted can be detected by an electrical connection check by means of the connection detecting pin(s) 66.
  • Such a detection can be also made by seeing the contact state of the engaging projections 63 with the stopping edges 24 from outside.
  • Each of opposite walls 25 of the receptacle 20 located at position different from the opposite walls 22 (and at the left and right in FIG. 2) is formed with a pair of slits 26 extending backward from the front end thereof.
  • a resilient locking piece 27 integrally or unitarily formed at the receptacle 20 and engageable with the relay 50 to prevent the detachment of the relay 50 from the receptacle 20 is provided between each pair of the slits 26.
  • Each resilient locking piece 27 includes a main body 27F, and a locking claw 27A engageable with the rear end surface or a rear stepped surface of the relay 50 (as seen in an insertion direction of the relay 50 into the receptacle 20) when the relay 50 is located at a proper connection position (when the relay 50 is accommodated to a substantially proper depth in the receptacle 20) projects inward from the leading end of the main body 27F.
  • a slanted surface 27B for guiding the relay 50 and/or the resilient deformation of the resilient locking piece 27 is provided on the upper surface of each locking claw 27A.
  • An inner projection 27E bulges out in widthwise direction WD (or in a direction substantially lying in the plane of the resilient locking piece 27 or of the wall in which the resilient locking piece 27 are provided) at the inner side of each main body 27F.
  • This inner projection 27E has an extended locking surface 27H (see FIG. 6) substantially in flush with a locking surface of the locking claw 27A at least partly engageable with the relay 50, thereby increasing an area of engagement of the locking claw 27A with the relay 50 by a hatched portion shown in FIG. 7.
  • the inner projections 27E are normally located inside the slits 26 (upper slits in FIG. 2).
  • the inner projections 27E When the resilient locking pieces 27 are resiliently deformed outward, the inner projections 27E first pass the slits 26 and come into abutment against the inner surfaces of the receptacle 20 as the resilient locking pieces 27 are further resiliently deformed.
  • the receptacle 20 against which the inner projections 27E can be brought into abutment forms excessive deformation preventing portions 40, and areas of the receptacle 20 along the slits 26 (upper slits in FIG. 2) are extended outward and bulged to substantially cover the outer sides of the slits 26 and/or the inner projections 27E.
  • the excessive deformation preventing portions 40 of this embodiment are provided preferably over the substantially entire length of the slits 26 and cover only the outer sides of the slits 26 without covering the outer sides of the main bodies 27F.
  • Each excessive deformation preventing portion 40 is formed with a slanted surface 40A for escaping the corresponding inner projection 27E to make the relay 50 withdrawable (see FIG. 8).
  • an outer projection 27G bulges out in widthwise direction WD (or in a direction substantially lying in the plane of the resilient locking piece 27 or of the wall in which the resilient locking piece 27 are provided) at the outer side of each main body 27F.
  • This outer projections 27G preferably are substantially in the form of a rectangular flat plate and integrally or unitarily (at least partly) overlap the leading ends of the resilient locking pieces 27 from outside (see FIG. 1), and at least partly cover the outer sides of the slits 26 (lower slits in FIG. 2).
  • the outer projections 27G come substantially into abutment against the outer surfaces of the receptacle 20 which serve as excessive deformation preventing portions 41 when the resilient locking pieces 27 are resiliently deformed inward.
  • the outer surfaces of the receptacle 20 as the excessive deformation preventing portions 41 are recessed at positions where the outer projections 27 come substantially into abutment, thereby forming recesses 29.
  • the recesses 29 are formed to remove molding pins for forming the outer projections 27G and useful in improving the strength of the molding pins.
  • the relay 50 is at least partly inserted through the insertion opening of the receptacle 20.
  • the one or more resilient locking pieces 27 are brought into substantially sliding contact with the outer surfaces of the relay 50 while being resiliently deformed outward (see FIGS. 4 and 5).
  • the resilient locking pieces 27 are resiliently restored to engage the locking claws 27 with the rear end surface or a rear side of a stepped portion of the relay 50 like hooks (see FIG. 6).
  • the relay 50 is withdrawn from the receptacle 20 by being disengaged from the locking claws 27A and being pulled out of the receptacle 20.
  • the locking claws 27A are held e.g. by fingers and pushed wider apart in directions of arrows S to free the relay 50 in withdrawing direction Z.
  • the resilient locking pieces 27 may be resiliently deformed beyond their resiliency limit since the operation is done in particular by an operator's feeling.
  • the inner projections 27E can come substantially into abutment against the inner surfaces (slanted surfaces 40A) of the excessive deformation preventing portions 40 (receptacle 20), thereby hindering any further displacement of the resilient locking pieces 27.
  • the excessive outward resilient deformation of the resilient locking pieces 27 can be securely prevented.
  • the outer projections 27G can come substantially into abutment against the outer surfaces of the receptacle 20 as the excessive deformation preventing portions 41, thereby hindering any further displacement of the resilient locking pieces 27.
  • the excessive inward resilient deformation of the resilient locking pieces 27 can also be securely prevented.
  • the outer walls 2 are provided at the outer sides of the resilient locking pieces 3 while being spaced therefrom in the prior art relay mounting portion 1 (see FIG. 15), the resilient locking pieces 27 and the excessive deformation preventing portions 40, 41 are all integrally or unitarily formed at or on the receptacle 20 in this embodiment. Thus, the enlargement of the connector as a whole can be avoided unlike the prior art.
  • the inner projections 27E preferably have the extended locking surfaces 27H substantially in flush with the locking surfaces of the locking claws 27A, the areas of engagement of the locking claws 27A wit the relay 50 are increased by the width of the extended locking surfaces 27H, with the result that the relay 50 can be securely and strongly locked.
  • the outer surfaces of the resilient locking pieces 27 are not completely covered by the excessive deformation preventing portions 40.
  • a degree of resilient deformation of each resilient locking piece 27 can be seen from outside. In other words, if the resilient locking pieces 27 are seen not to be resiliently deformed, the properly mounted state of the relay 50 can be advantageously judged. Conversely, if the resilient locking pieces 27 are seen to be resiliently deformed, the relay 50 can be advantageously judged to be partly mounted without the locking claws 27A being precisely engaged with the relay 50.
  • a connector 10 is provided with a receptacle 20 into which a relay 50 or other electric/electronic part or element such as a fuse, a resistor, etc. is at least partly insertable through an insertion opening formed in the front surface of the receptacle 20.
  • At least one resilient locking piece 27 engageable with the relay 50 to prevent the detachment of the relay 50 is provided between a pair of slits or recesses 26 formed in the receptacle 20 to extend substantially backward from the front end thereof or substantially along the insertion direction of the relay 50.
  • the receptacle 20 is provided with an excessive deformation preventing portion 40 which can be brought substantially into abutment against the resilient locking piece 27 to prevent the excessive resilient deformation of the resilient locking piece 27 when the resilient locking piece 27 is resilient deformed.
  • FIGS. 16 to 21 A second preferred embodiment of the present invention is described with reference to FIGS. 16 to 21.
  • a connector 120 connectable with a relay 10 is illustrated in this embodiment.
  • the relay 110 (as a preferred electric/electronic part) is made e.g. of a synthetic resin substantially into a short rectangular column shape as a whole, and one or more, preferably a plurality of substantially tab-shaped relay terminals 111 (see phantom lines in FIG. 19) project from the bottom or mating surface of the relay 110.
  • the connector 120 is provided with a housing 121 made e.g. of a synthetic resin.
  • the housing 121 is comprised of a terminal accommodating portion 122 preferably substantially in the form of a rectangular tube for at least partly accommodating one or more terminal fittings (not shown) and a receptacle 123 which is so formed at the front or mating surface of the terminal accommodating portion 122 as to be slightly larger than the terminal accommodating portion 122 and into which the relay 110 is at least partly insertable through an opening formed in the front surface thereof.
  • one or more, preferably a plurality of cavities 140 are formed to penetrate the terminal accommodating portion 122 substantially along longitudinal direction, and one or more female terminal fittings (not shown) can be at least partly accommodated therein.
  • a resiliently deformable locking portion 130 is formed in each cavity 140 and engageable with the female terminal fitting to lock it.
  • the receptacle 123 has such a depth that the relay 110 can be at least partly accommodated therein, and window holes 123B used or usable to grip or hold the relay 110 are formed at the front sides of substantially opposed side walls 123A of its surrounding walls preferably at four sides e.g. by cutting.
  • the remaining opposed side walls 123C of the surrounding walls of the receptacle 123 are provided with resilient locking pieces 123D for locking the relay 110 so as not to come out.
  • Each resilient locking piece 123D preferably substantially in the form of a cantilever is preferably formed by making slits 123E at the opposite sides thereof as shown in FIG. 18, and the leading end thereof is resiliently deformable inward and outward of the receptacle 123.
  • a locking claw 123F projects inward from the leading end of each resilient locking piece 123D. Further, a slanted guiding surface 123G for guiding the relay 110 and/or the deformation of the resilient locking piece 123D is formed at the leading end surface of each locking claw 123F. Excessive deformation preventing portions 123H for preventing the excessive resilient deformation of the resilient locking pieces 123D are formed to bulge out along the edges of the slits 123E so as to at least partly cover the outer sides of the slits 123E. Preferably, the excessive deformation preventing portions 123H project from an edge portion of the respective slit 123E so as to be substantially step-shaped, wherein the leading end portion thereof is arranged in substantially the same plane as the respective side wall 123C.
  • the side walls 123A of the receptacle 123 formed with the window holes 123B are substantially continuous with the front ends of the side walls of the terminal accommodating portion 122 via stepped portions 123J.
  • the inner surfaces of the stepped portions 123J preferably are substantially in flush and continuous with the front surface of the terminal accommodating portion 122 and function as contact surfaces 123Q with which the relay 110 inserted in an inserting direction ID into the receptacle 123 comes substantially into contact.
  • the relay 10 is fitted until coming into contact with the contact surfaces 23Q.
  • a hole 123K is formed to cut or transverse preferably also a part of the corresponding stepped portion 123J present there.
  • the front surface and/or an edge portion of the terminal accommodating portion 122 and that of the inserted relay 110 can be at least partly seen through the holes 123K.
  • the hole 123K is also formed in one side wall 123C of the receptacle 123 where the resilient locking piece 123D is provided.
  • a pedestal or projection 123M which bulges out and serves as a supporting point of a detaching jig 170 operated to detach the relay 110 is formed at a part of each stepped portion 123J at least partly located in the hole 123K.
  • the pedestal 123M preferably is substantially in the form of a column as a whole and spaced away from the other part of the stepped portion 123J, and this clearance substantially communicates with the hole 123K. Further, the height of the pedestal 123M is set lower than that of the other part of the stepped portion 123J, and the leading end thereof with respect to height direction has its front portion obliquely cut to form a slanted guiding surface 123N.
  • the relay 110 is at least partly inserted in the inserting direction ID into the receptacle 123 of the connector 120 from a mating side (left side in FIG. 20).
  • the edges of the front surface of the relay 110 come substantially into contact with the guiding surfaces 123D of the locking claws 123F of the resilient locking pieces 123D and push them, whereby the relay 110 is pushed while resiliently deforming the resilient locking pieces 123D outward.
  • the resilient locking pieces 123D are at least partly resiliently restored to engage the locking claws 123F with the rear surface (or with the rear portion of a stepped portion) of the relay 110 with respect to its inserting direction to lock the relay 110.
  • the one or more relay terminals 111 at least partly enter the corresponding cavities 140 to be connected with the respective female terminal fittings accommodated therein.
  • the contact of the front surface of the relay 110 and that of the terminal accommodating portion 122 can be seen through the holes 123K, whereby judgment can be made as to whether or not the relay 110 is properly connected in the receptacle 123.
  • the relay 110 can be prevented from staying at a depth of incomplete connection.
  • the resilient locking pieces 123D are first resiliently deformed outward to disengage the locking claws 123F from the relay 10.
  • the leading end of the detaching jig 170 e.g. flat or minus screwdriver
  • the detaching jig 170 for the relay 110 is or can be at least partly inserted into the hole 123K while being slid along the guiding surface 123N of the pedestal 123M and thrusts itself between the front surface of the relay 110 and that of the terminal accommodating portion 122.
  • the jig 170 is forcibly displaced or pivoted with the pedestal 123M as a supporting point of leverage, thereby lifting the relay 110 from the front surface of the terminal accommodating portion 122 or in a withdrawing direction. Then, the relay 110 is or can be gripped and pulled out e.g. by fingers. As a result, the relay 110 is or can be detached from the receptacle 123. Here, if the relay 110 is gripped and pulled out e.g. by fingers without using the jig 170, the relay 110 cannot be detached unless a strong pulling force is exerted. If the holes 123K as above are formed, the jig 170 can be at least partly inserted through the hole 123K, making it easier to detach the relay 110 using the jig 170.
  • the detaching operation can proceed with good operability. Further, since the relay 110 can be detached with a small force due to leverage action, work loads can be reduced. Furthermore, the jig 170 can smoothly thrust itself between the front surface of the relay 110 and that of the terminal accommodating portion 122 by causing the leading end of the jig 170 to slide along the guiding surface 123N of the pedestal 123M.
  • the jig 170 can be operated and the connection position of the relay 110 can be visually confirmed from three sides of the connector 120, i.e. from many angles by forming the holes 123K in two or more, e.g. three of the side walls 123A, 123C of the receptacle 123.
  • the connector 120 can be used in a wider range of application.
  • a connector 120A of this embodiment differs from the first embodiment in that insertion openings 155 used to at least partly insert a detaching jig 170 for a relay 110 (as a preferred electric/electronic part) are formed in a terminal accommodating portion 122. Since the other construction is substantially similar or the same as in the second embodiment, no description is given on the structure, functions and effects thereof by identifying it by the same reference numerals.
  • the pedestals 123M are used upon operating the detaching jig 170 for the relay 110 in the second embodiment, such pedestals 123M are not provided, the insertion openings 155 are instead formed at the front end of the terminal accommodating portion 122 (near the stepped portions 122J) preferably by cutting and the detaching jig 170 is at least partly inserted through these insertion openings 155 in this embodiment.
  • the insertion openings 155 open in the front surface of the terminal accommodating portion 122 and substantially communicating with holes 123K are formed at the front ends of the surrounding walls of the terminal accommodating portion 122 in such a size that the leading end of the jig 170 is at least partly insertable therethrough.
  • the jig 170 can be smoothly inserted through the insertion opening 155 without interfering with the relay 110. Therefore, the jig 170 can be prevented from damaging the relay 110 during the insertion.
  • a connector 120 is provided with a housing 121 including a terminal accommodating portion 122 and a receptacle 123 which is open forward at the front surface of the terminal accommodating portion 122 and into which a relay 110 is at least partly insertable.
  • One or more holes 123K through which the front surface and/or an edge portion of the relay 110 with respect to inserting direction can be seen are formed at positions of the surrounding wall of the receptacle 123 near the terminal accommodating portion 122.
  • a detaching jig 170 used to detach the relay 110 is insertable through the holes 123K.

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  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Claims (10)

  1. Verbinder bzw. Steckverbinder (10; 120; 120A; 120B), umfassend:
    eine Aufnahme (20; 123), in welche ein mit einem Anschluß bzw. Kontakt versehenes elektrisches/elektronisches Teil, wie beispielsweise ein Relais (50; 110), wenigstens teilweise durch eine Einsetzöffnung einsetzbar ist, welche in der vorderen Fläche der Aufnahme (20; 123) ausgebildet ist,
    wenigstens ein rückstellfähiges verriegelndes bzw. Verriegelungsstück (27; 123D), welches zwischen einem Paar von Schlitzen (26; 123E) ausgebildet ist, und zwar ausgebildet in der Aufnahme (20; 123), und mit dem elektrischen/elektronischen Teil (50; 110) in Eingriff bringbar ist, um das Lösen bzw. Entfernen des elektrischen/elektronischen Teils (50; 110) zu verhindern, und
    wenigstens einen eine übermäßige Deformation verhindernden Abschnitt (40; 41; 123H), welcher an der Aufnahme (20; 123) vorgesehen ist, um die übermäßige rückstellfähige Deformation des rückstellfähigen verriegelnden Stücks (27; 123D) zu verhindern, indem er im wesentlichen in Anlage gegen das rückstellfähige verriegelnde Stück (27; 123D) gebracht ist bzw. wird, wenn das rückstellfähige verriegelnde Stück (27; 123D) rückstellfähig deformiert ist bzw. wird;
    dadurch gekennzeichnet, daß
    sich ein innerer Vorsprung (27E) nach außen im wesentlichen in einer Breitenrichtung (WD) von einem Hauptkörper (27F) des rückstellfähigen verriegelnden Stücks (27; 123D) wölbt und im wesentlichen in Anlage gegen die innere Fläche des eine übermäßige Deformation verhindernden Abschnitts (40; 123H) nach einem Passieren eines Schlitzes (26; 123E) gebracht werden kann, wenn das rückstellfähige verriegelnde Stück (27; 123D) rückstellfähig nach außen (S) deformiert ist bzw. wird.
  2. Verbinder nach Anspruch 1, wobei das rückstellfähige verriegelnde Stück (27; 123D), welches zwischen einem Paar von Schlitzen (26) ausgebildet ist, in der Aufnahme (20; 123) ausgebildet ist, um sich im wesentlichen nach rückwärts von dem Vorderende der Aufnahme (20; 123) zu erstrecken.
  3. Verbinder nach einem oder mehreren der vorangehenden Ansprüche, wobei der eine übermäßige Deformation verhindernde Abschnitt (40; 123H) ausgebildet ist, um sich nach außen zu wölben bzw. vorzuspringen, um wenigstens teilweise die Außenseite eines Schlitzes (26; 123E) abzudecken.
  4. Verbinder nach einem oder mehreren der vorangehenden Ansprüche, wobei der Hauptkörper (27F) des rückstellfähigen verriegelnden Stücks (27; 123D) mit einer verriegelnden bzw. Verriegelungsklaue (27A; 123F) versehen ist, um das elektrische/elektronische Teil (50) im wesentlichen an einer ordnungsgemäßen Verbindungsposition in der Aufnahme (20; 123) zu verriegeln, und
    der innere Vorsprung bzw. Fortsatz (27E) eine erstreckte verriegelnde Oberfläche (27H) vorzugsweise im wesentlichen bündig mit einer verriegelnden bzw. Verriegelungsfläche der verriegelnden Klaue (27; 123F) aufweist.
  5. Verbinder nach einem oder mehreren der vorangehenden Ansprüche, wobei:
    sich ein äußerer Vorsprung (27G) nach außen im wesentlichen in einer Breitenrichtung (WD) von dem Hauptkörper (27F) erstreckt, ausgebildet ist, um wenigstens teilweise die Außenseite eines Schlitzes (26), vorzugsweise des anderen Schlitzes (27) als desjenigen abzudecken, welcher durch den eine übermäßige Deformation verhindernden Abschnitt (40) abgedeckt ist, und im wesentlichen in Anlage gegen die äußere Fläche der Aufnahme (20) als der eine übermäßige Deformation verhindernde Abschnitt (41) gebracht werden kann, wenn das rückstellfähige verriegelnde Stück (27) rückstellfähig nach innen deformiert ist bzw. wird.
  6. Verbinder nach einem oder mehreren der vorangehenden Ansprüche, umfassend ein Gehäuse (121), welches einen einen Anschluß aufnehmenden Abschnitt bzw. Anschlußaufnahme-Abschnitt (122), welcher ein oder mehrere Anschlußpaßstück(e) aufnimmt, und eine Aufnahme (123) beinhaltet, in welche ein mit einem Anschluß versehenes elektrisches/elektronisches Teil (110), wie beispielsweise ein Relais (110), wenigstens teilweise einsetzbar ist, um das eine oder die mehreren elektrische(n) Anschlußpaßstück(e) bzw. Kontakt(e) und entsprechende Anschlüsse (111 ) des elektrischen/elektronischen Teils (110) elektrisch zu verbinden,
    wobei wenigstens ein Loch (123K), durch welches die vordere Fläche und/oder der vordere Rand bzw. die vordere Kante des elektrischen/elektronischen Teils (110) in bezug auf eine Einsetzrichtung (ID) gesehen werden kann, an einer Position einer umgebenden Wand (123C) der Aufnahme (123) nahe dem einen Anschluß aufnehmenden Abschnitt (122) ausgebildet ist.
  7. Verbinder nach Anspruch 6, wobei das elektrische/elektronische Teil (110) bis zu einer Position eingesetzt ist bzw. wird, wo das elektrische/elektronische Teil (110) im wesentlichen gegen die vordere Fläche des einen Anschluß aufnehmenden Abschnitts (122) anliegen kann, und wenigstens eine Einsetzöffnung (155), durch welche ein lösendes Werkzeug bzw. Betätigungselement (170) wenigstens teilweise einsetzbar ist, um das elektrische/elektronische Teil (110) zu lösen, so in der umgebenden Wand des einen Anschluß aufnehmenden Abschnitts (122) ausgebildet ist, um vorzugsweise in der vorderen Fläche des einen Anschluß aufnehmenden Abschnitts (122) offen zu sein und im wesentlichen mit dem Loch (123K) zu kommunizieren bzw. in Verbindung zu stehen.
  8. Verbinder nach einem oder mehreren der vorangehenden Ansprüche, wobei die Aufnahme (20; 123) an dem vorderen Ende des einen Anschluß aufnehmenden Abschnitts (12; 122) über einen abgestuften Abschnitt (123J) ausgebildet ist, das elektrische/elektronische Teil (50; 110) bis zu einer Position eingesetzt ist, wo das elektrische/elektronische Teil (50; 110) im wesentlichen gegen die vordere Fläche des einen Anschluß aufnehmenden Abschnitts (12; 122) anliegen kann.
  9. Verbinder nach Anspruch 8, wobei ein Sockel (123M), um vorzugsweise als ein abstützender bzw. Supportpunkt des lösenden Betätigungselements (170) zu dienen, welches betätigt wird, um das elektrische/elektronische Teil (110) zu lösen bzw. zu entfemen, an einem Teil des abgestuften Abschnitts (123J) vorragt, welcher in dem Loch (123K) angeordnet ist.
  10. Verbinder nach einem oder mehreren der vorangehenden Ansprüche 6 bis 9, wobei wenigstens ein Sockel (123M), welcher sich nach außen an einem Abschnitt des einen Anschluß aufnehmenden Abschnitts (122) nahe dem Loch (123K) wölbt, als ein abstützender Punkt eines lösenden Werkzeugs (170) dienen kann, welches betätigt ist bzw. wird, um das elektrische/elektronische Teil (110) zu lösen bzw. zu entfernen.
EP20030011076 2002-05-22 2003-05-20 Elektrischer Steckverbinder Expired - Lifetime EP1365483B1 (de)

Applications Claiming Priority (4)

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JP2002148202 2002-05-22
JP2002148202A JP3891038B2 (ja) 2002-05-22 2002-05-22 コネクタ
JP2002155936A JP2003346619A (ja) 2002-05-29 2002-05-29 コネクタ
JP2002155936 2002-05-29

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