CN101425640A - Electrical connector - Google Patents

Electrical connector Download PDF

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Publication number
CN101425640A
CN101425640A CNA2008101749568A CN200810174956A CN101425640A CN 101425640 A CN101425640 A CN 101425640A CN A2008101749568 A CNA2008101749568 A CN A2008101749568A CN 200810174956 A CN200810174956 A CN 200810174956A CN 101425640 A CN101425640 A CN 101425640A
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CN
China
Prior art keywords
insert
pin contact
contact
pin type
interposition
Prior art date
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Granted
Application number
CNA2008101749568A
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Chinese (zh)
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CN101425640B (en
Inventor
鹤见正彦
足立康弘
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.)
DAIICHI ELECTRONIC INDUSTRY Co Ltd
DDK Ltd
Original Assignee
DAIICHI ELECTRONIC INDUSTRY Co Ltd
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Publication of CN101425640A publication Critical patent/CN101425640A/en
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Publication of CN101425640B publication Critical patent/CN101425640B/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46Bases; Cases
    • H01R13/52Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5216Dustproof, splashproof, drip-proof, waterproof, or flameproof cases characterised by the sealing material, e.g. gels or resins
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46Bases; Cases
    • H01R13/52Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5202Sealing means between parts of housing or between housing part and a wall, e.g. sealing rings
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/73Means for mounting coupling parts to apparatus or structures, e.g. to a wall
    • H01R13/74Means for mounting coupling parts in openings of a panel
    • H01R13/748Means for mounting coupling parts in openings of a panel using one or more screws

Abstract

An electrical connector includes a plurality of pin contacts, at least two inserts each having inserting holes for inserting and arranging the pin contacts therein, holders for holding the pin contacts relatively to the inserts, a shell forming a fitting opening and having a fitting device to be fitted with a mating connector, a fixing device for fixing the inserts to said shell, and a sealing member for preventing moisture from a casing. One insert located on the fitting opening side is formed from a sealing member, and outer circumferences of the inserting holes on the sides of the inserts in contact with each other are in fitted relationship of projections and recesses. A space is formed between the shell and an outer circumference of the insert nearest to the connection side, and a pouring opening is provided for pouring a waterproof material so as to reach the surface of the insert in contact with the insert nearest to the connection side. A waterproof material is caused to flow through the pouring opening into the space and between the respective inserts so as not to reach the pin contacts to improve waterproof property on the connection side, thereby preventing defective connection due to dew condensation.

Description

Electric connector
Technical field
The present invention relates to the electric connector on a kind of can that is installed in industrial equipment or electric or electronic installation, and more specifically be, electric connector has by connect side to the cable of described connector and injects waterproof material and guarantee the structure of better fire resistance characteristic, thereby prevents because any connection defective that dew condensation causes.
Background technology
The following describes the electric connector that uses so far, it is suitable for being installed on the can.Described electric connector comprises insert after insert before a plurality of pin contact, pin type, interposition and the pin type.Each pin contact has and at least at one end is suitable for and the contacted contact portion of matching connector, in the coupling part that the other end is connected with cable, and the flange between described contact portion and described coupling part; Insert has patchhole before the pin type, inserts and be provided with described pin contact with portion within it; Interposition has patchhole, inserts and be provided with described pin contact with portion within it; Have patchhole with insert after the pin type, insert and be provided with described pin contact with portion within it.Described electric connector further comprises housing, it has and is used to insert insert before the described pin type, the patchhole of described interposition and described back insert, insert in the hole be provided with the shoulder engage with insert before the described pin type and within it portion hold the groove part of retainer ring.Described housing is formed with the pilot hole that portion within it holds insert and described matching connector before the described pin type, and has the assembling device that assembles mutually with described matching connector.In addition, described electric connector comprise with described pin contact with respect to described pin type after the holding device that keeps of insert, insert, interposition and back insert before the described pin type are fixed to the described retainer ring on the housing and are used for preventing that moisture from entering the seal of shell.
Example as electric connector with cable, what here be merged in is that the application's the publication number that the applicant proposed is No.2005-285,333 Japanese patent application (patent documentation 1) and publication number are No.H10-223,297 (1998) Japanese patent application (patent documentation 2).
Patent documentation 1
According to publication number is No.2005-285, the summary of 333 Japanese patent application, and the target of this invention provides the overall structure water-proof connector of a rear end release type, even have narrower pitch, also installation and price are lower easily.Disclosed overall structure water-proof connector comprises Socket casing 60, preceding insert 20, interposition 30, with back insert 40, in order with preceding insert 20, interposition 30 and back insert 40 are fixed to the retainer ring 70 of described Socket casing 60, with the crimping pin contact 50 in these inserts that are installed in the rear end release type, wherein connector be included on the preceding insert 20 of interposition 30 1 sides or at least one coupling device on the interposition 30 of preceding insert 20 1 sides and on interposition 30 or preceding insert 20 with the anchor of the corresponding position of coupling device.
By way of parenthesis, publication number is No.2005-285, and the claim 1 of 333 Japanese patent application has been put down in writing integrally-built waterproof crimp connector, comprises Socket casing, interposition, preceding insert, back insert, retainer ring and crimping pin contact.Interposition has a plurality of patchholes that are used for the crimping pin contact, it is installed in the described Socket casing and by insulating material and makes, before insert have and be used for inserting the crimping pin contact and patchhole described interposition equal number, it remains on the front of described interposition and is made by the insulation elastomeric material, back insert have be used for inserting the crimping pin contact with patchhole described interposition equal number with at the described contact fixture that inserts in the hole, it is installed in the rear side of described interposition and is made by insulating material, retainer ring is used for described interposition, preceding insert and back insert are fixed on the Socket casing, the crimping pin contact is installed in by described interposition, in the rear end releasing structure insert that preceding insert and back insert are constituted, it is characterized in that on the preceding insert of described interposition side or at least one coupling device is set and on interposition or preceding insert, anchor is set on the interposition of insert side before described with the corresponding position of described coupling device.Claim 2 has been put down in writing the overall structure waterproof crimp connector according to claim 1, wherein be provided with at least one copulational protuberance as described coupling device, so that before described insert extend on the described interposition side or from described interposition extend to described before on the insert side, and as described anchor described interposition or described before be provided with anchorage part with described copulational protuberance corresponding position on the insert so that described anchorage part and described copulational protuberance engage.Claim 3 has been put down in writing the overall structure waterproof crimp connector according to claim 1, wherein be provided with at least one copulational protuberance as described coupling device, so that extend on the described interposition side from described preceding insert, and in described interposition, be provided with anchor hole with the corresponding position of described copulational protuberance as described anchor, so that described anchor hole and described copulational protuberance engage, and wherein with described before the corresponding position of described copulational protuberance of insert, described back insert is provided with the release portion that is used for described copulational protuberance.Claim 4 has been put down in writing the overall structure waterproof crimp connector according to claim 2 or 3, wherein said five copulational protuberances be distributed in described before insert the center and at interval on four positions of 90 degree.Claim 5 has been put down in writing the overall structure waterproof crimp connector according to claim 4, wherein before being used for crimping pin contact described in each patchhole of insert, at least one annular projection is set, so that part crimping pin contact becomes waterproof construction.Claim 6 has been put down in writing the overall structure waterproof crimp connector according to claim 5, and wherein said preceding insert is made by elastomer.Claim 7 has been put down in writing the method for assembling overall structure waterproof crimp connector, wherein copulational protuberance is provided with the extension on its tip, and spur described extension so that the copulational protuberance and the described interposition of described preceding insert engage, described afterwards extension is cut off.Claim 8 has been put down in writing the method according to the assembling overall structure waterproof crimp connector of claim 7, wherein said copulational protuberance is formed with groove between its tip and described extension, and the copulational protuberance of insert only spurs described extension with its cut-out with after described interposition engages before described.
Patent documentation 2
According to publication number is H10-223, the summary of 297 (1998) Japanese patent application, and the target of this invention provides an integrally-built waterproof crimp connector, can safely He simply the crimping pin contact be installed in the connector.Disclosed overall structure water-proof connector comprises: Socket casing 1; By the interposition 12 that insulating material is made, it has a plurality of patchholes that are used for crimping pin contact 15; Have and the described preceding insert 13 that is used for the interposition 12 equal number patchholes of crimping pin contact 15, itself and interposition 12 become integral body and are fixed on the interposition 12; By the back insert 14 that insulating material is made, it has and the described patchhole that is used for interposition 12 equal numbers of crimping pin contact 15, and has contact fixture 14b inserting in the hole; Be used for interposition 12, preceding insert 13 and back insert 14 are fixed on retainer ring 6 on the Socket casing 1; Be installed in the crimping pin contact in the patchhole of insert separately respectively.
By way of parenthesis, publication number is H10-223, the claim 1 of 297 Japanese patent application has been put down in writing overall structure waterproof crimp connector, it comprises Socket casing, the interposition of making by insulating material, it has a plurality of patchholes that are used for the crimping pin contact, and be installed on the described Socket casing, the preceding insert of making by insulating elastomer, have with described and be used for the crimping pin contact and the patchhole interposition equal number, itself and interposition become integral body and are fixed on the interposition, the back insert of making by insulating material, it has and the described patchhole that is used for the interposition equal number of crimping pin contact, and in the rear surface that inserts in the hole and have the contact fixture and be installed in described interposition, be used for described interposition, preceding insert and back insert are fixed on the retainer ring on the described Socket casing and are installed in by described interposition, crimping pin contact in the rear end releasing structure insert that preceding insert and back insert constitute.Claim 2 has been put down in writing the overall structure waterproof crimp connector according to claim 1, and wherein said interposition and described preceding insert are fastened to each other by adhesive.
When use is installed in electric connector on the can of industrial equipment or electric or electronic installation, raise in the can and the temperature of surrounding air by heating, heat is produced by contact by the signal of electric connector.When stopping using electric connector, the temperature of surrounding air reduces than the temperature in the can must be fast, to such an extent as to the temperature in the can than the temperature height of surrounding air, thereby on the cable in can with similar position on the dew that can condense.Because dew condensation, moisture (water droplet) can enter in the plug-in package in the electric connector by cable, to such an extent as to contact by short circuit, thereby cause connecting defective or failure.This problem has to be solved.
Prior art need be carried out silica-gel coating between preceding insert and back insert, even produce dew condensation, also can prevent to connect defective.Yet, the slow and elapsed time of silica-gel coating, the quantity of the step that foundation is comprised makes whole process of production tediously long, and implicit costs increase.
In addition, have been proposed in injection silica gel or similar substance between preceding insert and the back insert.Yet injection can not make silica gel enter between (inflow) insert, thereby can not be by preventing because of making the contact waterproof between moisture (water droplet) the inflow contact that dew condensation produces.
Patent documentation 1 and 2 invention target are different from the content that set forth in this place, to such an extent as to disclosed structure can not address the above problem in these documents.
Summary of the invention
In view of the present invention has finished above-mentioned prior art problems, target of the present invention is to propose a kind of electric connector, comprise in simple mode and be injected into the waterproof material that cable connects side, guarantee the water proofing property of contact, thereby prevent connection owing to cause any that be weak of dew condensation or failure.
Target of the present invention can realize by electric connector 10, this electric connector can link to each other with the connector of coupling and disconnect, and be suitable for linking to each other with cable and being installed on the can, and described electric connector 10 comprises a plurality of pin contact 12, at least two inserts, holding device, housing 20, fixture and seals, each pin contact 12 at one end has and the contacted contact portion 121 of described matching connector, and has the coupling part 123 that is connected with described cable at the other end.Each insert has portion's insertion within it and the patchhole of described pin contact 12 is set, holding device is used for described pin contact 12 is remained on the described insert, housing 20 portion within it holds described at least two inserts, be formed for holding the pilot hole 11 of described matching connector with described insert, and has an assembling device that assembles mutually with described matching connector, fixture is fixed on described two inserts on the housing 20 at least, seal prevents that moisture from entering described shell, in structure of the present invention, one of described at least two inserts that are positioned at described pilot hole 11 sides are formed by seal, and assemble in the mode of projection and groove the periphery of the described patchhole on the side that two inserts contact with each other, in described housing 20 and described at least two inserts, be formed with space 32 between one the periphery near coupling part one side, and in the described insert near coupling part one side hand-hole 34 is being set, be used for injecting waterproof material, described hand-hole extend to near the surface of the contacted insert of insert of coupling part one side, and by described hand-hole 34 waterproof material is injected between described space 32 and each insert and do not extend to described pin contact 12, improve the fire resistance characteristic of coupling part side.
Target of the present invention also can realize by electric connector 10, this electric connector can link to each other with the connector of coupling and disconnect, and be suitable for linking to each other with cable and being installed on the can, and described electric connector 10 comprises insert 18 after insert 14 before a plurality of pin contact 12, pin type, interposition 16, the pin type, housing 20, holding device, retainer ring 22 and seal.Each pin contact 12 at one end has and the contacted contact portion 121 of described matching connector, with have the coupling part 123 that is connected with described cable at the other end, and have the flange 122 between described contact portion 121 and described coupling part 123.Insert 14 has the patchhole 141 that inserts and described pin contact 12 is set before the pin type.Interposition 16 has the patchhole 161 that inserts and be provided with described pin contact 12 within it.Insert 18 has the patchhole 181 that inserts and be provided with described pin contact 12 within it after the pin type.Housing 20 has the patchhole 201 that inserts insert 18 after insert 14 before the described pin type, described interposition 16 and the described pin type, in patchhole 201, be provided be suitable for described pin type before the shoulder 202 that engages of insert 14 and the groove part 203 that is used to hold retainer ring 22, and described housing further is formed with the pilot hole 11 that holds insert 14 and described matching connector before the described pin type, with the assembling device that assembles mutually with described matching connector.Holding device is used for keeping described pin contact 12 with respect to insert after the described pin type 18.Retainer ring 22 with insert before the pin type 14, described interposition 16 and described pin type after insert 18 be fixed on the housing 20 and seal is used for preventing that moisture from entering shell.In structure of the present invention, form insert 14 before the described pin type by seal, and at each insert 14,16 and 18 the above patchhole 141 of a side that contacts with each other, assemble in the mode of projection and groove 161 and 181 periphery, between the periphery of insert 18 after described housing 20 and the described pin type, be formed with space 32, and insert 18 provides surface that extends to described interposition 16 and the hand-hole 34 that is used for injecting waterproof material after the described pin type, by waterproof material being injected between described space 32 and each insert and do not extend to described pin contact 12, improve the fire resistance characteristic of coupling part side.
The described electric connector 10 of claim 3 has structure like this so that described waterproof material has predetermined or littler viscosity, and the waterproof material that injects extends on the end face of the described housing 20 of coupling part side.
In addition, the described electric connector 10 of claim 4 has structure like this so that described waterproof material and has 25Pas or littler viscosity.Preferably use the waterproof material of viscosity between 0.6~20Pas in theory.
In addition, the described electric connector 10 of claim 5 have structure like this so that near the insert of coupling part one side and with any one surface at least that contacts with each other near the contacted insert of described insert of coupling part one side on, perhaps be formed with groove between any one lip-deep described patchhole at least what insert 18 after described interposition 16 and the described pin type contacted with each other.
The described electric connector 10 of claim 6 has structure like this so that described holding device and insert 18 whole formation after near the described insert of coupling part one side or described pin type.
In addition, the described electric connector 10 of claim 7 has the comb teeth 183 that structure like this so that described holding device comprise a plurality of bendings.
In addition, the described electric connector 10 of claim 8 has in structure like this so that the described pin contact 12 at least one as ground connection pin contact 24, and on described ground connection pin contact 24, ground strip 26 is installed, makes described ground connection pin contact 24 and described housing 20 electrically conductings by ground strip.
From top description, be appreciated that the electric connector that links to each other with cable according to the present invention can bring below important function and effect.
(1) can link to each other with the connector of coupling and disconnect, and be suitable for linking to each other and be installed in the electric connector 10 on the can with cable, described electric connector 10 comprises a plurality of pin contact 12, at least two inserts, holding device, housing 20, fixture and seals, each pin contact 12 at one end has and the contacted contact portion 121 of described matching connector, and has the coupling part 123 that is connected with described cable at the other end.Each insert has portion's insertion within it and the patchhole of described pin contact 12 is set, holding device is used for keeping described pin contact 12 on described insert, housing 20 portion within it holds described at least two inserts, the pilot hole 11 of described insert and described matching connector is held in formation, fixture is fixed on described two inserts on the housing 20 at least, seal prevents that moisture from entering described shell, in structure of the present invention, one of described at least two inserts that are positioned at described pilot hole 11 sides are formed by seal, and the described patchhole in the side that two inserts contact with each other assembles in the mode of projection and groove, in described housing 20 and described at least two inserts, be formed with space 32 between one the periphery near coupling part one side, and in the described insert near coupling part one side hand-hole 34 is being set, be used for injecting waterproof material, described hand-hole extend to near the surface of the contacted insert of insert of coupling part one side, and by hand-hole 34 waterproof material is injected between described space 32 and each insert and do not extend to described pin contact 12, improve the fire resistance characteristic of coupling part side.According to the present invention, even owing to dew condensation produces moisture (water droplet), also can be at an easy rate the waterproof material of some be injected in the target part, to guarantee to obtain the connection that required waterproof prevents any defective or failure.
(2) can link to each other with the connector of coupling and disconnect, and be suitable for linking to each other with cable and be installed in the electric connector 10 on the can, described electric connector 10 comprises insert 18 after insert 14 before a plurality of pin contact 12, the pin type, interposition 16, the pin type, housing 20, holding device, retainer ring 22 and seal.Each pin contact 12 at one end has and the contacted contact portion 121 of described matching connector, with have the coupling part 123 that is connected with described cable at the other end, and have the flange 122 between described contact portion 121 and described coupling part 123.Insert 14 has the patchhole 141 that inserts and described pin contact 12 is set before the pin type.Interposition 16 has the patchhole 161 that inserts and be provided with described pin contact 12 within it.Insert 18 has the patchhole 181 that inserts and be provided with described pin contact 12 within it after the pin type.Housing 20 has the patchhole 201 that inserts insert 18 after insert 14 before the described pin type, described interposition 16 and the described pin type, in patchhole 201, be provided be suitable for described pin type before the shoulder 202 that engages of insert 14 and the groove part 203 that holds retainer ring 22, and described housing further is formed with the pilot hole 11 that holds insert 14 and described matching connector before the described pin type, with the assembling device that assembles mutually with described matching connector.Holding device is used for keeping described pin contact 12 with respect to insert after the described pin type 18.Retainer ring 22 with insert before the pin type 14, described interposition 16 and described pin type after insert 18 be fixed on the housing 20 and seal is used for preventing that moisture from entering shell.The described electric connector of claim 2 has structure like this so that forms insert 14 before the described pin type by seal according to the present invention, and at each insert 14, the above patchhole 141 of 16 and 18 sides that contact with each other, assemble in the mode of projection and groove 161 and 181 periphery, between the periphery of insert 18 after described housing 20 and the described pin type, be formed with space 32, and insert 18 provides surface that extends to described interposition 16 and the hand-hole 34 that is used for injecting waterproof material after the described pin type, by waterproof material being injected between described space 32 and each insert and do not extend to described pin contact 12, improve the fire resistance characteristic of coupling part side.Therefore,, also can be at an easy rate the waterproof material of some be injected in the target part, to guarantee to obtain the connection that required waterproof prevents any defective or failure even owing to dew condensation produces moisture (water droplet).
(3) the described electric connector 10 of claim 3 has structure like this so that described waterproof material and has predetermined or littler viscosity, and the waterproof material that injects extends on the end face of the described housing 20 of coupling part side.Therefore,, also can be at an easy rate the waterproof material of some be injected in the target part, to guarantee to obtain the connection that required waterproof prevents any defective or failure even owing to dew condensation produces moisture (water droplet).
(4) electric connector described in the claim 4 10 has structure like this so that described waterproof material and has 25Pas or littler viscosity.Therefore,, also can be at an easy rate the waterproof material of some be injected in the target part, to guarantee to obtain the connection that required waterproof prevents any defective or failure even owing to dew condensation produces moisture (water droplet).Preferably use the waterproof material of viscosity between 0.6~20Pas in theory.If waterproof material has 0.6Pas or littler viscosity, it will flow in the unnecessary part, yet waterproof material has 20Pas or bigger viscosity, and it can not flow in the required scope, cause result unsatisfactory.
(5) the described electric connector 10 of claim 5 have structure like this so that at least near the insert of coupling part one side and with any one surface that contacts with each other near the contacted insert of described insert of coupling part one side on, perhaps between any one lip-deep described patchhole that insert 18 after described interposition 16 and the described pin type contacts with each other, be formed with groove at least.Therefore, when described waterproof material flows between the described insert, can prevent reliably that waterproof material from extending to described contact, thereby, also can guarantee to obtain the connection that required waterproof prevents any defective or failure even owing to dew condensation produces moisture (water droplet).
(6) the described electric connector 10 of claim 6 has structure like this so that described holding device and insert 18 whole formation after near the described insert of coupling part one side or described pin type.Therefore, can keep described pin contact in simple mode, and, even owing to dew condensation produces moisture (water droplet), also can guarantee to obtain the connection that required waterproof prevents any defective or failure.
(7) the described electric connector 10 of claim 7 has the comb teeth 183 that structure like this so that described holding device comprise a plurality of bendings.Therefore, can keep described pin contact in simple mode, and, even owing to dew condensation produces moisture (water droplet), also can guarantee to obtain the connection that required waterproof prevents any defective or failure.
(8) the described electric connector 10 of claim 8 has in structure like this so that the described pin contact 12 at least one as ground connection pin contact 24, and on described ground connection pin contact 24, ground strip 26 is installed, makes described ground connection pin contact 24 and described housing 20 electrically conductings by ground strip.Therefore, can be grounded connection in simple mode, and, even owing to dew condensation produces moisture (water droplet), also can realize fully required water-proofing treatment prevent any defective or the failure connection.
The present invention will and be able in conjunction with the accompanying drawings more comprehensively understand by afterwards detailed specification and claim.
Description of drawings
Figure 1A is that electric connector according to the present invention is from assembling the perspective view that a side is looked;
Figure 1B is the perspective view that electric connector according to the present invention is looked from cable one side;
Fig. 2 is the longitudinal sectional view that is installed in the described electric connector on the shell according to the present invention;
Fig. 3 is the perspective view of pin contact;
Fig. 4 A is the perspective view of insert before the assembling side pin type of looking;
Fig. 4 B is from connecting the perspective view of insert before the described pin type that side looks;
Fig. 4 C is the cutaway view of the preceding insert of described pin type along the W-W plane shown in Fig. 4 A;
Fig. 5 A is the perspective view of interposition, and it is looked from assembling a side;
Fig. 5 B is from connecting the perspective view of the described interposition that side looks;
Fig. 5 C is the cutaway view of described interposition along the X-X plane shown in Fig. 5 A;
Fig. 6 A is the perspective view of insert after the assembling side pin type of looking;
Fig. 6 B is from connecting the perspective view of insert after the described pin type that side looks;
Fig. 6 C be after the described pin type insert along the cutaway view on Y-Y plane;
Fig. 7 A is the perspective view from the assembling side Socket casing of looking;
Fig. 7 B is from connecting the perspective view of the described Socket casing that side looks;
Fig. 7 C is the cutaway view of described Socket casing along the Z-Z plane;
Fig. 8 is the perspective view of retainer ring;
Fig. 9 A is the perspective view of insert, retainer ring and pin contact after insert, interposition, the pin type before the assembling side described Socket casing of looking, the pin type;
Fig. 9 B is the perspective view of insert and Socket casing before insert after the described pin contact of looking from cable side, retainer ring, the pin type, interposition, the pin type;
Figure 10 A is the schematic diagram of described electric connector under the state that encapsulant has been injected into according to the present invention;
Figure 10 B is the schematic diagram of described electric connector under the state that encapsulant is not injected into according to the present invention;
Figure 11 A is the perspective view of ground connection pin contact; With
Figure 11 B is the perspective view that is used for the ground strip on the ground connection pin contact.
Embodiment
An embodiment of the electric connector according to the present invention will be described by reference Figure 1A~11B.
Figure 1A is an electric connector according to the present invention from assembling the perspective view that a side is looked, and Figure 1B is the perspective view that electric connector according to the present invention is looked from cable one side.Fig. 2 is to be the perspective view of pin contact according to the longitudinal sectional view of electric connector of the present invention and Fig. 3.Fig. 4 A is the perspective view of insert before the assembling side pin type of looking, and Fig. 4 B be from the perspective view that connects insert before the described pin type that side looks and Fig. 4 C be before the described pin type insert along the cutaway view on the W-W plane shown in Fig. 4 A.Fig. 5 A is the perspective view from the assembling side interposition of looking, and be from being connected the perspective view of the interposition that side looks with Fig. 5 B, and Fig. 5 C is the cutaway view of described interposition along the X-X plane shown in Fig. 5 A.Fig. 6 A is the perspective view of insert after the assembling side pin type of looking, and Fig. 6 B be from the perspective view that connects insert after the described pin type that side looks and Fig. 6 C be after the described pin type insert along the cutaway view on the Y-Y plane shown in Fig. 6 A.Fig. 7 A is the perspective view from the assembling side Socket casing of looking, and Fig. 7 B is to be the cutaway view of described Socket casing along the Z-Z plane shown in Fig. 7 B from the perspective view and Fig. 7 C that connect the described Socket casing that side looks.Fig. 8 is the perspective view of retainer ring.Fig. 9 A is that the perspective view of insert after insert before the described Socket casing of looking from the pilot hole side, the pin type, interposition, the pin type, retainer ring and pin contact and Fig. 9 B are the perspective views of insert and Socket casing before insert after the described pin contact of looking from cable side, retainer ring, the pin type, interposition, the pin type.Figure 10 A is that schematic diagram and Figure 10 B that encapsulant has been injected into state is the schematic diagram that encapsulant is not injected into state.Figure 11 A is the perspective view of ground connection pin contact, and Figure 11 B is the perspective view of ground strip.
According to the present invention; electric connector 10 comprises a plurality of pin contact 12 at least; at least two inserts; be used for the holding device of described pin contact 12 with respect to described insert maintenance; housing 20; be used for described insert is fixed on fixture on the described housing, be used for protecting described electric connector to resist the seal that moisture enters shell, and waterproof material.In this embodiment, preceding insert 14, interposition 16, back insert 18 are as insert, and retainer ring 22 (Fig. 8) is as the fixture that these inserts is fixed on the described housing.Further, packing ring 28 is resisted the seal that moisture enters shell as the described electric connector of protection, and as described below, is used for insert 18 whole formation after described holding device that the described relatively insert of pin contact is kept and the described pin type.
With reference to figure 10A, at first will illustrate method from waterproof material to the connection side of electric connector that inject.Even produce the dew that condenses, the waterproof material that is injected into the connection side of described electric connector simply can prevent that also moisture (water droplet) from entering in pilot hole side and the contact by the space of described housing, described insert and cable, thereby prevents any connection defective.For this reason, when described waterproof material was injected in the hand-hole, described waterproof material flowed into housing 20 and space 32 between the described insert and the space between each insert shown in Figure 10 B.Like this, the periphery of the patchhole that is provided with in each insert forms the projection and the groove of mutual assembling as described below, so that waterproof material can't arrive pin contact 12.Use viscosity as 25Pas (pascal second) or littler waterproof material so that described waterproof material arrives the terminal surface that housing 20 connects sides.Yet, in theory, use the waterproof material of viscosity between 0.6 to 20Pas better.If waterproof material has 0.6Pas or littler viscosity, it will flow in the unnecessary part, yet waterproof material has 20Pas or bigger viscosity, and it can not flow in the required scope, and causing can't gratifying result.The waterproof material of viscosity in 0.6~20Pas scope comprises silica gel, nitrile glue and chloroprene rubber and its synthetic material and sticky agent.Described sticky agent comprises encapsulant, epoxy resin, polyurethanes and its homologue.
To illustrate pin contact 12 then.As shown in Figure 3, pin contact 12 is rod shape basically.Described pin contact 12 is made of metal and forms by known cutting technique.The preferable alloy that forms described pin contact 12 comprises brass, beryllium copper, phosphor bronze and can satisfy the similar substance that dimensional stability, conductivity and similar characteristics require.Described pin contact 12 mainly comprises the contact portion 121 that at one end contacts with the connector of coupling, in the coupling part 123 that the other end is connected with cable, and the flange 122 between described contact portion 121 and described coupling part 123.Described pin contact 12 is fixed on after the pin type on the insert 18 by holding device.
Described contact portion 121 contacts with the connector of described coupling, and the contact condition of consideration and described matching connector, shape, contact force and similar characteristic and suitably design.In the embodiment that has set forth, contact portion is a needle-like.During insert, described flange 122 is used for respect to insert location pin contact 12 after the described pin type after described pin contact 12 is inserted described pin type.Such function is suitably considered in the design of the shape and size of described flange 122.Described coupling part 123 links to each other with described cable.Suitably design the shape and size of described coupling part 123 according to method of attachment.In the embodiment that is set forth, by the both sides that connect are applied firm active force realize with cable between be connected.
To illustrate the preceding insert 14 of pin type then.Shown in Fig. 4 A and 4B, insert 14 is disc-shape basically before the pin type.Insert 14 is made by electric insulation rubber and is formed by the known pressure forming technique before the described pin type.Should consider elasticity, dimensional stability, machinability, manufacturing cost and similar characteristic are suitably selected the material of the preceding insert 14 of pin type, and generally include silica gel, nitrile glue and chloroprene rubber and its synthetic material.
Insert 14 is formed with the patchhole 141 of requirement before the described pin type, is used for inserting described pin contact 12 on the position accordingly with match objects (contact).Insert 14 also is formed with patchhole before the described pin type on the position of inserting the ground connection pin contact.Only need described patchhole 141 to be inserted by described pin contact 12.Because insert 14 is made by rubber before the described pin type, so pin contact 12 closely is installed in the described patchhole 141, so that improve water resistance.In order to improve the compactness of contact therebetween, in the limited field that pin contact is inserted, described patchhole 141 is a little less than described pin contact 12.Patchhole to ground connection pin contact 24 makes in this way equally.In addition, the inner surface of described patchhole 141 is formed with a plurality of projections 145, contacts with the tight of described pin contact 12 to improve.The size of described projection 145 should suitably consider to contact with described pin contact 12 raising of compactness and the insertion of described pin contact 12 in design.
Insert 14 is respectively in the assembling side with is connected side and is provided with projection 142, so that center on patchhole 141 its peripheries of formation before the described pin type.Projection 142 in the assembling side is used to increase contact surface between described patchhole 141 and the described pin contact, and the projection 142 that connects side is used to increase the contact surface between described patchhole 141 and the described pin contact, and prevent flowing of waterproof material simultaneously, so that the engagement by between the groove 163 of projection 142 and described interposition 16 makes waterproof material can't arrive described pin contact 12.The size of described projection 142 is suitably considered such function in design.
In addition, insert 14 is provided with the projection 142 that centers on described patchhole in the assembling side before the described pin type, and be provided with groove 143 connecting side, and described groove 143 is formed on the peripheral of patchhole and is communicated with patchhole, and described patchhole is used to insert described ground connection pin contact 24.The function of the projection 142 of assembling side and the functional similarity of above-mentioned projection.The described groove 143 of connection side is used to increase the contact surface between ground connection pin contact 24 and the interposition 16, and prevent flowing of waterproof material simultaneously, so that make waterproof material can't arrive described ground connection pin contact 24 by the engagement between the projection 162 of groove 143 and described interposition 16.The size of described projection 142 and described groove 143 is suitably considered such function in design.
Insert 14 further is formed with a plurality of copulational protuberances 144 before the described pin type, so that not crossing with the patchhole 141 of pin contact 12 and ground connection pin contact 24.Described copulational protuberance 144 is meshed with the anchoring groove 164 of interposition 16 and shifts out from described interposition 16 with insert 14 before preventing described pin type, in other words, improve the contact compactness between the insert 14 and described interposition 16 before the described pin type.The size and dimension of described copulational protuberance 144 is suitably considered such function in design.The function of consideration in the embodiment that is set forth increases the far-end of copulational protuberance 144 so that strengthen confining force.In the embodiment that is set forth, consider the factor of balance, five copulational protuberances 144 are set so that do not disturb described pin contact 12 and described ground connection pin contact 24.
To set forth interposition 16 then.Shown in Fig. 5 A and 5B, described interposition 16 is disc basically.Described interposition 16 is made by known casting process by the electric insulation plastics.The material of described interposition 16 should suitably be considered dimensional stability, machinability in the choice, manufacturing cost and similar characteristic, and generally include polybutylene terephthalate (PBT), polyamide (66PA or 46PA), liquid crystal polymer (LCP), Merlon (PC), and analog and its composition.
Described interposition 16 is formed with a plurality of patchholes 161, is used for inserting respectively described pin contact 12 and ground connection pin contact 24.Only need described patchhole 161 to be passed by described pin contact 12 and ground connection pin contact 24, and bigger than described pin contact 12 and ground connection pin contact 24 a little.
The position that described interposition 16 inserts in the side that described pin contact 12 contacts with insert 14 before the pin type from interposition 16 forms groove 163.Described groove 163 inside hold the projection 142 of the preceding insert 14 of described pin type, and are communicated with described patchhole 161 respectively.In addition, described interposition 16 is formed with projection 162 on the position that described ground connection pin contact 24 is inserted.Described projection 162 is assembled in the groove 143 of the preceding insert 14 of described pin type.
In addition, the side that contacts with insert 18 after the pin type from interposition 16 in described pin contact 12 of described interposition 16 position of inserting forms projection 162.Described projection 162 is assembled in the groove 182 (Fig. 6 C) of insert 18 after the described pin type.And described interposition 16 is formed with insertion groove 165 on the position that described pin contact 12 is inserted, and described insertion groove 165 is suitable with the shoulder 124 of described pin contact 12 respectively, and is communicated with described patchhole 161.
Each described projection 162 and groove 163 are suitable with the described groove 143 and the projection 142 of the preceding insert 14 of described pin type, and described projection 162 also with described pin type after the groove 182 of insert 18 suitable, these parts are used for preventing that described waterproof material from arriving described pin contact 12 when injecting waterproof material with box lunch.The shape and size of these projections 162 and groove 163 are suitably considered this function, intensity and fitness in design.And described insertion groove 165 holds the shoulder 124 of described pin contact 12 respectively, to locate described pin contact 12.
Described interposition 16 with the hand-hole 34 corresponding positions of injecting waterproof material on form groove part 166, the shape of groove part 166 is identical with the hand-hole 34 of insert 18 after the described pin type basically.The described hand-hole 34 of the insert 18 complete hand-hole 34 of incompatible formation that matches after described groove part 166 and the described pin type, thereby make waterproof material to a certain extent flowing between the insert 18 after interposition 16 and the pin type, so that make waterproof material can't arrive described pin contact 12.Consider this function, the shape of described groove part 166 is identical with the shape of hand-hole 34 of insert 18 after the pin type basically, and the size of described groove part 166 should suitably be considered this function and intensity in design.
And, described interposition 16 with described pin type before be formed with anchoring groove 164 on the copulational protuberance 144 corresponding positions of insert 14, it engages with described copulational protuberance 144 respectively.In an illustrated embodiment, described anchoring groove 164 forms through hole, and the throughhole portions of insert 14 sides forms taper before described pin type, so that insert copulational protuberance 144 easily.Determine the size of described anchoring groove 164, so as described copulational protuberance 144 and interposition 16 with pin type after insert 18 contacted surfaces against.
And described interposition 16 side of insert 18 after the described pin type of contact is formed with groove 167, and it inserts respectively between the patchhole 161 of described pin contact 12 being used for, and holds the projection 186 of insert 18 after the described pin type.Described groove 167 is used to guarantee that waterproof material can't arrive described pin contact 12.
Next will set forth insert 18 after the pin type.Shown in Fig. 6 A and 6B, insert 18 is cylindrical basically after the pin type.Insert 18 is made by the electric insulation plastics and is formed with known casting process after the described pin type.The material of insert 18 should suitably be considered dimensional stability, machinability in the choice after the described pin type, manufacturing cost and similar characteristic, and generally include polybutylene terephthalate (PBT), polyamide (66PA or 46PA), liquid crystal polymer (LCP), Merlon (PC), and analog and its composition.
Insert 18 is formed with the patchhole 181 of requirement after the described pin type, is used to insert described pin contact 12 and ground connection pin contact 24.Only need described patchhole 181 to be inserted wherein by described pin contact 12 and ground connection pin contact 24, and bigger than described pin contact 12 and ground connection pin contact 24 a little.
Insert 18 forms groove 182 after the described pin type on the position that a side that contacts with described interposition 16 is inserted by described pin contact 12.Described groove 182 inside hold the projection 162 of described interposition 16, and are connected with described patchhole 161 respectively.Described groove 182 is suitable with the projection 162 of described interposition 16, to prevent that described waterproof material from arriving described pin contact 12 when injecting waterproof material.The size of described groove 182 is suitably considered this function, intensity and fitness in design.
In described embodiment, after the described pin type insert 18 with described ground connection pin contact 24 corresponding positions on be provided with the hand-hole 34 that takes the shape of the letter U basically, it matches with the groove part 166 of described interposition 16 form to inject the hand-hole 34 of waterproof material.The shape and size of described hand-hole 34 suitably consider to inject easiness, intensity, machinability and the similar characteristic of waterproof material in design.In described embodiment, hand-hole 34 is set so that extend to described ground connection pin contact 24.Or not the ground connection pin contact if described pin contact 12 only is set, hand-hole 34 then is set so that according to the desirable pin contact that do not extend to like that.
And, after the pin type insert 18 with described pin type before be formed with on the described copulational protuberance 144 corresponding positions of insert 14 and discharge groove 185, be used to hold copulational protuberance 144 and not overslaugh they.Described release groove 185 does not have in the scope of any interference holding copulational protuberance 144 can be Any shape and size, and described release groove 185 shape and size should suitably be considered this function, intensity and machinability in design.
Preferably, after the described pin type in the insert 18, waterproof material part that contact side flowed of insert 18 and interposition 16 after pin type is provided with groove part 187.And, in described groove part 187, between described pin contact 12, be provided with protrusion 186, extend to described pin contact 12 so that prevent waterproof material.If waterproof material does not arrive described pin contact flowing between the insert 18 after described interposition 16 and the described pin type, just do not need described groove part 187.The shape and size of described groove part 187 should suitably be considered above-mentioned functions, intensity, machinability and similar characteristic in design.Described protrusion 186 engages with the groove 167 of described interposition 16, to guarantee preventing that waterproof material from extending to described pin contact 12.
Insert 18 is provided with the holding device that is integrated in the described patchhole 181 after the described pin type.As holding device, it has the comb teeth 183 that six its tips inwardly extend each other, and engages with the flange 122 of described pin contact 12, so that maintain pin contact.Described holding device is divided into six provides flexible comb teeth 183.The tip of described comb teeth 183 is narrow a little or curve inwardly so that engage with described pin contact 12 easily.
The holding device of insert 18 (comb teeth) inwardly is formed for the patchhole of described pin contact 12 after the described pin type.Only need the shape and size of described patchhole that described pin contact 12 is inserted, and according to the shape and size of described pin contact, it should consider the miniaturization of electric connector in design.
To set forth housing 20 then.Described housing 20 is made of metal and forms with known cutting or casting die.The metal that preferably forms described housing 20 generally includes kirsite, aluminium alloy and can satisfy the similar substance of dimensional stability, machinability, manufacturing cost and similar characteristics.
Shown in Fig. 7 A~7C, housing 20 comprises cylindrical basically main part and is the flange portion 205 of square plate basically.Described flange portion 205 is fixed on the shell in formation porose 206 on the precalculated position and by hold-down screw being passed hole 206.In described embodiment, on four angles of square flange part 205, four holes 206 are set.
Shown in Fig. 7 A~7C, described main part is cylindrical basically and be formed with the patchhole 201 that passes main part.Patchhole 201 together with described pin type before insert 14 form the pilot hole 11 that holds matching connector.Place at main part assembling side outer and to be formed with male thread or external screw thread 204 links to each other with the connector with coupling.
In patchhole 201, the precalculated position is provided with the groove part 203 that holds retainer ring 22, and it is used for before the described pin type of housing 20 internal fixation insert 18 after insert 14, described interposition 16 and the described pin type.Only need the shape and size of described groove part 203 to hold described retainer ring 22, and suitably designed so that insert 18 after insert 14, described interposition 16 and the described pin type before the fixing described pin type.
In the patchhole 201 of described housing 20, on the precalculated position, be provided with shoulder 202 with described pin type before the end joined of assembling side of insert 14.Shoulder 202 is used to not only locate that insert 14 extends to pilot hole one side to prevent it before the described pin type, and with described retainer ring 22 insert 18 after insert 14 before the described pin type of incompatible encirclement, described interposition 16 and the described pin type that matches.
The position of described groove part 203 and described shoulder 202 should be suitably designed so that insert 18 after fixing insert 14 before the described pin type, described interposition 16 and described pin type, and electric connector 10 and described matching connector assembling can be made.
Be set between the flange portion 205 of described housing 20 and the shell so that improve aeroseal as the packing ring 28 of encapsulant.
To set forth ground connection pin contact 24 then.Shown in Figure 11 A, described ground connection pin contact 24 is clavate basically.Described ground connection pin contact 24 is made of metal and forms with known cutting technique.The metal that preferably forms described ground connection pin contact 24 comprises brass, beryllium copper, phosphor bronze and can satisfy the similar substance that dimensional stability, conductivity and similar characteristics require.Ground connection pin contact 24 mainly comprises the contact portion 241 that at one end contacts with described matching connector and forms at the other end to have the big slightly part 242 of diameter of internal thread 243, and internal thread 243 passes the big slightly part of this diameter 242 along diametric(al).By ground strip 26 described ground connection pin contact 24 can with described housing 20 electrically conductings so that make housing 20 ground connection.
To set forth ground strip 26 then.Shown in Figure 11 B, ground strip 26 is the cylindricality of hollow basically, and has the through hole 261 that holds machine screw 38.Described ground strip 26 is formed with a surface that is complementary with described ground connection pin contact 24.
To set forth retainer ring 22 at last.As shown in Figure 8, described retainer ring 22 is c-shaped basically, and is made of metal, and forms with known shaping or coiling technology.The metal that preferably forms described retainer ring 22 comprises copper alloy, for example beryllium copper, phosphor bronze and can satisfy the similar substance of dimensional stability, machinability, manufacturing cost and similar characteristics requirement.When described retainer ring 22 is assembled in the groove part 203 of described housing 20, before the described pin type after insert 14, described interposition 16 and the described pin type the be fixed shoulder 202 of ring 22 and described housing 20 of insert 18 surround, thereby these inserts 14,16 and 18 are fixed on the described housing 20.The size of retainer ring 22 should suitably be considered this function, intensity, machinability and similar characteristic in design so that it is accommodated in the groove part 203 of described housing 20.
Application example of the present invention is mounted in the electric connector on the can of industrial equipment or electric or electronic installation, and more specifically be, make electric connector have better fire resistance characteristic by connect side injection waterproof material to cable, thereby prevent up hill and dale because any connection defective that the dew that condenses causes.
Though illustrate and describe the present invention particularly with reference to preferred embodiment, those skilled in the art should be understood that the above-mentioned of the form that can be made at and details aspect and other change, and do not deviate from the spirit and scope of the present invention.

Claims (8)

1. an electric connector for the treatment of to be connected and to disconnect with matching connector is suitable for linking to each other with cable and being installed on the hermetically sealed, and described electric connector comprises:
A plurality of pin contact, each pin contact at one end have and the contacted contact portion of described matching connector, and have at the other end and to treat the coupling part that is connected with described cable,
At least two inserts have the patchhole that is used to insert and be provided with described pin contact in each insert,
Holding device is used for described pin contact is remained on described insert,
Housing holds described at least two inserts in housing, described housing and described insert are formed for holding the pilot hole of described matching connector, and has and treat the assembling device that assembles mutually with described matching connector,
Fixture, described at least two inserts are fixed on the described housing and
Seal is used to prevent that moisture from entering described shell,
One of described at least two inserts that wherein are positioned at described pilot hole side are formed by seal, and the periphery of the described patchhole on the side that two inserts contact with each other assembles in the mode of projection and groove,
Wherein in described housing and described at least two inserts, be formed with the space between the periphery near an insert of coupling part one side, and the hand-hole that is used for injecting waterproof material is set near the described insert of coupling part one side, described hand-hole arrive with near the surface of the contacted insert of insert of coupling part one side and
Wherein waterproof material is injected between described space and each insert and do not arrive described pin contact, to obtain high fire resistance characteristic in the coupling part side by described hand-hole.
2. an electric connector for the treatment of to be connected and to disconnect with matching connector is suitable for linking to each other with cable and being installed on the hermetically sealed, and described electric connector comprises:
A plurality of pin contact, each pin contact at one end has and the contacted contact portion of described matching connector, have at the other end and to treat the coupling part that is connected with described cable, and have the flange between described contact portion and described coupling part
Insert before the pin type wherein has the patchhole that is used to insert and be provided with described pin contact,
Interposition wherein has the patchhole that is used to insert and be provided with described pin contact,
Insert after the pin type wherein has the patchhole that is used to insert and be provided with described pin contact,
Housing, has the patchhole that inserts insert after insert before the described pin type, described interposition and the described pin type, insert in the hole be provided be suitable for described pin type before the shoulder that engages of insert and the groove part that holds retainer ring, described housing further is formed with and holds the preceding insert of described pin type and the pilot hole of described matching connector and the assembling device that assembles mutually with described matching connector
Holding device is used for keeping described pin contact with respect to insert after the described pin type,
Retainer ring, insert after insert, described interposition and the described pin type before the described pin type is fixed on the described housing and
Seal is used for preventing that moisture from entering described shell,
Wherein form insert before the described pin type, and the periphery of the above patchhole of side that contacts with each other at each insert assembles in the mode of projection and groove by seal,
Wherein between the periphery of insert after described housing and the described pin type, be formed with the space, and insert provides surface that arrives described interposition and the hand-hole that is used for injecting waterproof material after the described pin type, and
Wherein by waterproof material being injected between described space and each insert and do not arrive described pin contact, improve the fire resistance characteristic of coupling part side.
3. electric connector according to claim 1 and 2, wherein said waterproof material have predetermined value or littler viscosity, and the waterproof material that injects arrives the end face of described housing on the side of coupling part.
4. electric connector according to claim 3, wherein said waterproof material have 25Pas or littler viscosity, and more preferably 0.6 and 20.0Pas between.
5. according to claim 3 or 4 described electric connectors, wherein at least near the insert of coupling part one side and with the arbitrary surface that contacts with each other near the contacted insert of described insert of coupling part one side on, perhaps between the arbitrary lip-deep described patchhole that insert after described interposition and the described pin type contacts with each other, be formed with groove at least.
6. according to any one described electric connector of claim 1~5, wherein said holding device with form near insert is whole after the described insert of coupling part one side or the described pin type.
7. electric connector according to claim 6, wherein said holding device comprises the comb teeth of a plurality of bendings.
8. according to any one described electric connector of claim 1~7, in the wherein said pin contact at least one is as the ground connection pin contact, and on described ground connection pin contact, ground strip is installed, makes described ground connection pin contact and described housing electrically conducting by ground strip.
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JP2009110754A (en) 2009-05-21
EP2056412A2 (en) 2009-05-06
JP4951465B2 (en) 2012-06-13
EP2056412A3 (en) 2010-03-17
EP2056412B1 (en) 2016-05-11

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